Wednesday, May 31, 2006

Study in Leading Cell Journal Supports Scientific Basis for BrainStorm Cell Therapeutics' Technology

Source: BrainStorm Cell Therapeutics, Inc
Postd: May 31, 2006 8:30 am ET

Summary:

BrainStorm Cell Therapeutics, Inc. announced that a new study has demonstrated the ability of human bone marrow-derived stem cells to differentiate into a variety of nerve cell types. These findings support the prospect of using cell therapies derived from adult bone marrow-derived stem cells and demonstrate the potential of developing dopaminergic cells to treat devastating neurological diseases such as Parkinson's disease.

Commentary: Hopefully this development will enable scientists to transform bone marrow-derived stem cells into effective treatments for neurological diseases and conditions.

Novocell, JDRF Announce Partnership to Clinically Test Encapsulated Human Islets

Source: PR Newswire via Yahoo! Finance
Posted: May 31, 2006 10:36 am ET

Summary:

The Juvenile Diabetes Research Foundation announced that it has established a partnership with Novocell, Inc. an Irvine, California-based, biotechnology company, to support an on-going proof of principle phase I/II human clinical trial for Novocell's polyethylene glycol encapsulation of insulin-producing islets.

Novocell's encapsulation technology uniformly coats donated pancreatic islets with a thin layer of biocompatible material. This coating is believed to enable implanted cells to survive and control glucose levels in patients with type 1 diabetes, resulting in near normal hemoglobin levels without the need for life-long immunosuppression.

Commentary: Hopefully this new drug therapie will prove effective in a large population of diabetes patients to be considered and effective treatment for diabetes

Scientists Celebrate Stem Cell Business Success

Source: University of Newcastle upon Tyne
Posted: May 30, 2006

A team of British stem cell researchers, based at the University of Newcastle upon Tyne, has formed a partnership with a major American stem cell company which is going to invest £160,000 in their work andl bring them a step closer to developing new patient therapies.

The team will use the funding to advance research using stem cells obtained from babies' umbilical cords.

The team is working towards developing new therapies for patients with a range of liver ailments that could be used in hospitals within five years.

The University researchers are also due to help the American company, called BioE, to test and develop new products to improve the storage of cord blood.

Scientists believe this research could have major implications for treating human disease, and providing human tissues for drug development and testing, eliminating the risk of side effects from new drugs.

Commentary: Hopefully this collaboration will expedite the development of drugs, therapies and treatments for diseaase and conditions

Research Suggests Cause Of Neurodegeneration In Huntington's Disease

Source: Emory University Health Sciences Center
Posted: May 30, 2006

Summary:

Sciientists have discovered that neurodegeneration associated with Huntington's disease may result from molecular mutations that block the transport of nutrients within cells. Research from the Emory University School of Medicine has shown that the mutant huntingtin protein limits the efforts of the huntingtin-associated protein ) to provide nutrients to growing neurons, or neurites. Without those nutrients, neurites fail to develop and mature neurons degenerate. Scienists say the protein is very important, because when an animal does not have it, it dies after birth. They also conclude that it is critical for differentiation and survival of some neurons in the brain. In addition, a better understanding about the functions of the protein could enable an clearer understanding the normal physiological processing for neuronal functioning, which could aid research into other neurodegerative diseases.

Commentary: This discovery seems to provide scientists with a new understanding of the root cause of Huntington's disease. Hopefully it will eventually lead to effective preventative treatments for Huntington's diseases as well as other neurodegenerative Diseases such as Parkinson's Disease, Alzheimer's or Lou Gehrig's Desease (ALS).

Tuesday, May 30, 2006

VitroGro(R) World-First: Culture of Human Embryonic Stem Cells for Therapeutic Use

Source: Tissue Therapies Limited via Medical News Today
Posted: May 30, 2006 3:32 am ET

Summary:

Brisbane-based biotechnology company Tissue Therapies Limited has potentially overcome a major obstacle in developig human embryonic stem cells for medical treatment by discoverinng its VitroGro® technology can be used to replace animal or human serum in the culture of human embryonic stem cells. Research demonstrated that human embryonic stem cells can be successfully grown using Tissue Therapies' VitroGro®, eliminating the need to use human or animal serum to culture cells. Researchers been extremely concerned that the use of animal- or human-derived serum to grow human embryonic stem cells could result in the transmission of infections to humans treated with these cells. Researchers believe the discovery has significant potential to accelerate the practical application of human stem cell therapies to develop cures for a wide range of devastating diseases.

Commentary: Hopefully this will lead to the development of embryonic stem cells that are safe for human transplantation by enabling the growth of cells without contaminants and eliminate the risk of immune system rejection during cell transplantation into human patients.

Monday, May 29, 2006

Heart may be home to its own stem cells

Source: NewScientist.com news service
Posted: 22:00 29 May 2006

Summary:

US scientists have found the “home” of stem cells in the heart, giving credibility to the idea that the heart has the capacity to repair itself. The finding raises the possibility that these cardiac stem cells could one day be able to regnerate tissues damaged by heart disease.

Scientists have tested this idea by removing tiny numbers of cardiac stem cells from people undergoing heart operations, growing them in the lab and then transplanting them into the damaged hearts of rats and mice. The results may lead to better heart repair than cells taken from bone marrow. Scientists say the primary goal of the experiment is to learn how the cells work.

Commentary: Hopefully this study will give scientists a basis to develop effective clinical treatments for humans with heart tissue damage resulting from a heart attack.

Can patients' stem cells fight heart disease? Study builds on existing fix-it response to damaged tissue

Source: Pioneer Press
Posted: May. 29, 2006

Summary:

Researchers at the Minneapolis Heart Institute are conducting a study to test if injections of heart attack patients' own bone marrow cells could prevent congestive heart failure.

The potential new benefit from stem cell therapy is the ability to prevent muscle loss, whereas other options compensate for muscle loss.

The 60 patients in the study will come from two Minneapolis-area medical institutions.

In the study, the cells will be surgically extracted from the patients' bone marrow three to seven days after their heart attacks. Scientists at the University of Minnesota will isolate the stem cells and return them to the hospitals. The cells will be injected through a catheter and descend via an artery into the heart.

If donated cells can be transplanted safely, they could offer a faster and cheaper method than extracting cells from heart attack patients.

Commentary: Hopefully this study will yield successful results using stem cells to treat heart attack patients and provide researchers with new insights and strategies for administering stem cell treatments safely and effectively.

Friday, May 26, 2006

Stem cells used to repair damage of breast surgery

Source: Daily Telegraph
Posted: May 27, 2006

Summary:

Stem cells derived from fat (adipose) tissue was implanted after breast cancer surgery in an attempt to improve brreast reconstruction and repair damaged tissue. Researchers believe that the stem cells will create new blood vessels to help fat tissue implanted at the same time to survive, and stem and regenerative cells from adipose (fat) tissue could improve tissue repair and healing.

Commentary: Hopefully this trial will lead to improved treatments and outcomes for a diverse population of breast cancer patients.

Neuronal Cell Cultures Kept On The Straight And Narrow

Source: National Institute of Standards and Technology
Posted: May 26, 2006

Summary:

Scientists at National Institute of Standards and Technology have created an improved cell-culture technique that uses surface chemistry to culture difficult-to-grow neuron-like cells on a variety of surfaces, and to culture the cells in patterns to study the effects of geometry on cell development. The technique could enable new, fundamental insights into the behavior of the key cells of the central nervous system.

Commentary: Hopefully these new insights into the nervous system wil provide researchers with new strategies to treat, or cure, neurological diseases, disorders and conditions.

Thursday, May 25, 2006

Stem Cell Study Seeks to Prevent Congestive Heart Failure

Source: Business Wire
Posted: May 25, 2006

Summary:

Researchers at the Minneapolis Heart Institute Foundation have begun a study to examine whether administration of stem cells to first time heart attack patients can prevent the development of congestive heart failure (CHF).

The study is intended to look exclusively at patients with moderate to large heart attacks, putting them at risk of developing CHF.

Cardiologists at the Foundation believe that if they can prove that using adult stem cells can reduce the development of CHF, many people could potentially benefit from the study.

Patients will be monitored for two years following stem cell treatment to determine whether stem cell therapy reduces scarring and improves cardiac function as determined by cardiac MRI.

Commentary: Hopefully this study will lead to improved treatments and treatment outcomes for congestive heart failure patients.

Wednesday, May 24, 2006

RNA Interference Stops Colon Cancer Spread In Mice

Source: University of Texas Medical Branch at Galveston
Posted: May 24, 2006

Summary:

University of Texas Medical Branch at Galveston (UTMB) researchers have scored a dramatic success in the battle against colorectal cancer by being first to use what are known as "small interfering RNAs" to block the spread of human colorectal cancer cells implanted in laboratory mice.

Commentary: Hopefully this will provide scientists with new ideas about how to develop clinical applications of "small interfering RNAs" to effectively treat colorectal cancer in humans

Cancer Vaccine Shows Promise in Mice: Scientists have overcome major hurdle, but treatments could still be decades away

Source: HealthDay News
Posted: May 23, 2006

Summary:

Swedish researchers have discovered from the results of experiments in mice that a new type of vaccine could be a longer lasting form of cancer treatment and may even lead the way toward preventing cancer.

The DNA-based vaccine was shown to prevent cancer growth in mice. The vaccine works by mimicking the effects of angiostatin, a piece of a protein that suppresses tumor growth by preventing new blood vessels from forming in tumors--a treatment strategy known as antiangiogenesis. Vaccinated mice showed reduced growth of breast cancer tumors.

Commentary: Hopefully this research will provide scientists with a new basis to develop effective cancer treatments in humans.

Stem cell injection may stop urine leakage due to stress incontinence: study

Source: The Canadian Press via Yahoo! Canada News
Posted: Tue May 23, 2006 04:38 PM EST

Tuesday, May 23, 2006

Researchers Find Immune-activating Cells In Intestines

Source: University of Minnesota
Posted: May 23, 2006

Summary:

Researchers have discovered a group of cells in the intestinal system of mice that are proven to activate T-cells, cells that help fight infection. Scientists say the connection between the group of cells and immune response will help in studying and developing treatments for diseases that affect the gastrointestinal system. The researchers found a tiny population of cells in the intestine that signal the T-cells to fight infections.

Commentary: Hopefully this research can be translated into human treatments for intestinal and infectious diseases.

Medistem Files U.S. Patent Application for Innovative Stem Cell Technology to Treat Lower Back Disorders: Stem Cell Company's Discovery Could Provide

Source: Medistem Laboratories, Inc. via Yahoo! News
Posted: Tuesday May 23, 2006 4:01 pm ET

Summary:

Medistem Laboratories, Inc. committed to the ethical development medical therapies from non-controversial adult stem cells, announced today its filing of a U.S. patent application for an innovative cellular technology to treat lower back ailments by addressing causal issues and developing methodologies to prevent disc degeneration. The discovery relates to the administration of one or more cell types to stimulate lumbar angiogenesis, decrease inflammation, and stimulate regeneration. The therapy could be used to treat lower back ailments associated with disc degeneration.

Commentary: Hopefully this treatment will improve the quality of life for sufferers of lower back pain and disc damage or injury.

Monday, May 22, 2006

Baylor Researchers Develop 'Bubble' Technique For Potential Treatment Of Type I Diabetes

Source: Baylor Health Care System
Posted: May 22, 2006

Researchers at Baylor University Medical Center at Dallas and the Baylor Research Institute have developed a novel technique known as ultrasound-targeted microbubble destruction (UTMD) to deliver insulin genes to the pancreas, the organ that produces insulin, via microscopic "bubbles.". This approach is a major step in the potential treatment of Type I diabetes. Once the bubbles reach their target they are burst with ultrasound releasing the insulin genes into the pancreas.

Using UTMD, researchers delivered the bubbles containing human insulin genes into the pancreas of rats and later found that the rat's blood sugar had been subsequently lowered. Another gene that regulates insulin production, known as hexokinase I, was successfully delivered using UTMD as well, and resulted in increased blood insulin and decreased blood sugar in the rats.

Researchers say the UTMD technique could be used to deliver genes to other organs in the future.

Commentary: This approach seems promising to treat genetic diseases and conditions and restore function to damaged or injured organs.

Sunday, May 21, 2006

Stem cells a cure for incontinence? Doctors encouraged by results of study

Source: Pittsburgh Post-Gazette
Posted: Monday, May 22, 2006

Summary:

New research has shown that an injection of a patient's own muscle stem cells can help restore control of a leaky bladder. Researchers at the University of Pittsburgh School of Medicine said stress incontinence symptoms improved in five out of seven women who got the experimental treatment. The patients experienced no serious side effects. This is the first time a study of this kind has been conducted in North America.

Commentary: This research appears promising in effectively and safely treating urinary incontince and avoiding harmful side effects.

Stem cells may help incontinence. Researchers calling treatment a cure

Source: Milwaukee Journal Sentinel
Posted: May 21, 2006

Summary:

Doctors say they were able to cure urinary incontinence in the vast majority of patients who were treated with injections of their own stem cells. The patients also had a dramatically improved quality of life

The researchers described the treatment as a cure, meaning that the patients did not need to wear pads after they were treated.

Some of the first patients to undergo the technique remained continent four years after the treatment.

A potential advantage to the stem cell treatment that it may need to be done only once, compared with the need for re-treatment with other injectable therapies. Also, a patient's own muscle cells can become a potential permanent rebuilding source of the sphincter muscle.

More testing will need to be performed and it could be years before it is available in the U.S.

Commentary: This research appears very promising. It underscores the need for federal funding of stem cell research, so more money is avialable to perform more tests simultaneously in order to eliminate errors, prevent fraud and share knowledge and research results in order to accelerate the development of a cure.

Heal Thyself: Systems Biology Model Reveals How Cells Avoid Becoming Cancerous

Source: University of California - San Diego
Posted: May 21, 2006

Summary:

Scientists have described for the first time a web of inter-related responses that cells use to avoid becoming diseased or cancerous after being exposed to a powerful chemical mutagen.

The information could be used eventually to develop drugs to boost DNA repair and possibly treat xeroderma pigmentosum, a disease in which the body's ability to repair DNA damage caused by ultraviolet light is disabled, Werner syndrome, a premature aging disorder, as well as certain immune deficiencies and other degenerative diseases.

Commentary: Hopefully this advancement in regenerative medicine will shed new light on cell degeneration and enable the development of effective cellular replacement and treatments for cellular diseases and disorders.

Injecting stem cells from a woman's own muscle may effectively treat urinary incontinence

Source: University of Pittsburgh Medical Center
Posted: May 21, 2006

Summary:

Women with stress urinary incontinence (SUI) were treated using muscle-derived stem cell injections to strengthen deficient sphincter muscles responsible for the condition. Results of the study suggest that the approach is safe, improves patients' quality of life and may be an effective treatment for SUI. This is the first of this kind of study conducted in North America.

Friday, May 19, 2006

Umbilical stem cells may aid lung research

Source: Star Tribune
Posted: May 8, 2006

Summary:

Researchers at the University of Minnesota have derived stem cells from umbilical cord blood that turn into lung cells. The technology used in the process was developed by BioE, a privately held biotechnology firm. BioE and U of M researchers claim that this is the first time human stem cells have been differentiated into a cell called the Type II Alveolar, which helps stabilize the lungs while breathing. Researchers believe the stem cells could be used to develop a human lung model for research purposes and treat respiratory conditions, such as emphysema and pulmonary fibrosis.

Commentary: Hopefully these findings can be turned into effective treatments for lung diseases.

Thursday, May 18, 2006

Scientists Discover First Angiogenesis Switch Inside Blood Vessel Cells

Source: Schepens Eye Research Institute
Posted: May 18, 2006

Summary:

Scientists at Schepens Eye Research Institute, an affiliate of Harvard Medical School, have discovered a switch inside blood vessel cells that controls angiogenesis (new blood vessel growth).

The researchers discovered that one enzyme, known as PI3K, acts on the lipid, it converts it (the lipid) into a modified form of itself, which then signals blood vessel cells to proliferate or grow, and another enzyme, known as PLCg, informs the vessels to undergo regression and disappear .Next steps for the research team include identifying the signaling events by which PXCg informs the vessels to undergo regression and the molecules that execute the regression command.

This finding could lead to new, more targeted drugs for diseases such as cancer, diabetic retinopathy and macular degeneration.

Commentary: Hopefully this research will eventually produce targeted and effective new drug treatments for diseases.

Potential new treatment strategy for Alzheimer's disease and other brain and spinal cord damage

Source: University of California - San Francisco
Posted: May 18, 2006

Summary:

A study led by researchers at the San Francisco VA Medical Center and the University of North Carolina, Chapel Hill has identified several new compounds that could aid in preventing or treating Alzheimer's disease and other progressive nervous system conditions. The compounds promote the survival of neurons, including hippocampal neurons that effect memory, in a lab culture. The researchers discovered that the compounds can also prevent the death of cells known as oligodentrocytes, cells that form myelin, the coating around nerve cells.

Commentary: This study could provide scientists with new insights into how memory functions and lead to new strategies to prevent, or treat, Alzheimer's Diseases and other degeerative conditions that cause memory loss and cognitive impairments resulting from cell death.

Wednesday, May 17, 2006

Study finds key to repairing optic nerves

Source: United Press International
Posted: May 15, 2006

BOSTON, May 15 (UPI) -- Researchers have discovered that a newly discovered growth factor could hold the key to regenerating damaged optic nerves -- and more.

The research team at Children's Hospital in Boston say they have found a naturally occurring, previously unrecognized growth factor that stimulates regeneration in injured optic nerves.

The findings provide hope for treating blindness caused by optic-nerve damage, but also look promising for spurring similar regeneration in the spinal cord and brain.

Commentary: Hopefully this growth factor will have positive outcomes for patients if it can be turn into an effective therapy.

UCI, fertility clinic to create stem cell lines: Using private money, university will employ donated surplus embryos in the effort.

Source: Orange County Register
Date: May 16, 2006

Summary:

UC Irvine and an Orange County fertility clinic are collaborating to create at least five new lines of human embryonic stem cells, becoming one of the few groups in the country to try to produce fresh lines for the study of everything from spinal cord injuries to Parkinson's disease.

Commentary: Hopefully these new stem cell lines will be genetically diverse enough for scientists to gain new understanding of diseases and be able to develop effective treatments.

New Study Reveals Signaling Pathways Required For Expansion Of Pancreas Stem Cells

Source: Scripps Research Institute
Posted: May 17, 2006

Summary:

A team of scientists at The Scripps Research Institute has published a new study of important signaling pathways that are required for the expansion of pancreas stem cells, work that may lead to strategies to prevent or reverse insulin-dependent diabetes mellitus (IDDM), or Type 1 diabetes.

Commentary: This study hopefully will give scientists a better understanding of how to possibly apply pancreas stem cells to treat patients with Type 1 diabetes

Stem-cell finding gives hope

Source: The Leader-Post / CanWest News Service
Posted: May 17, 2006

Summary:

Scientists announced that they wre able to grow large quantities of breast cancer stem cells, a finding that could help researchers whose work is hampered by the small number of available cells. They said said their work on breast cancer stem cells will assist scientists who are studying the cells and potential therapies for breast cancer.

Commentary: This research seems to have the potential to provide scientists with new strategies to develop effective breast cancer treatments from stem cells.

Calgarians lead stem cell breakthrough

Source: Calgary Sun
Posted: May 17, 2006

Summary:

A researcher at the University of Calgary has developed a successful process to grow a potentially unlimited supply of breast cancer stem cells from laboratory mice by adapting bioreactor technology used previously for protein production to reproduce the stem cells. The breakthrough could provide new insights into the development of drugs, treatments and cures for breast cancer.

Commentary: Hopefully this finding will provide researchers with new ideas and strategies about how to translate this breakthrough into treatments for human breast cancer patients.

Animal Studies Show Ortec's Fibrin Microbeads Recover Up To Four Times The Number Of Stem Cells As Conventional Methods

Source: Ortec International, Inc.
Posted: May 17, 2006

Summary:

Ortec International, Inc., a company focused on development and commercialization of products applicable to regenerative medicine and stem cell therapy, announced results of experiments in a rat model demonstrating that Ortec's Fibrin Microbeads (FMB) technology increases by nearly fourfold the yield of Mesenchymal Stem Cells recovered from bone marrow. The results also showed that the cells isolated by FMB could be expanded in culture for more than four months and could be differentiated into bone, fat and cartilage cells.

Commentary: It seems that if this technique could be used to grow human stem cells, it may be possible to accelerate the development of stem cell therapies to treat diseases, injuries and conditions.

Tuesday, May 16, 2006

Research Reveals How Prozac Triggers New Brain Cell Growth: It points to one way SSRI drugs may fight depression, experts say

Source: HealthDay News
Posted: May 16, 2006

Summary:

Researchers say they've discovered how antidepressants such as Prozac, Paxil and Zoloft dispel depression is by stimulating the growth of new brain cells. The researchers decided toexamine how the use of selective serotonin reuptake inhibitor (SSRI) antidepressants -- the widely used class of drugs that includes Celexa, Paxil, Prozac and Zoloft -- might spur brain cell growth. To do so, they tracked the way in which stem cells -- undifferentiated cells that can grow into specialized cells -- became neurons in a special mouse model given the antidepressant Prozac (fluoxetine). They believe that Prozac targets cells which are born from the stem cells, called amplifying progenitors, and increases their numbers. Within three to four weeks, they observed an increase in the number of mature neurons.

Commentary: Hopefully this discovery will enable the proliferation neural stem cells in order to treat central nervous system disorders, injuries and conditions.

Stem Cells Being Used to Treat Lupus in Certain Patients

Source: ABC / KTBS 3-TV, Shreveport, Louisiana
Posted: May 16, 2006

Here is a video feature about using an adult stem cell transplant to build a new immune system in order to treat lupus.

Monday, May 15, 2006

Study Shows Frogs Can Play Key Role In Stem Cell Research

Source: University of Edinburgh
Posted: May 16, 2006

Summary:

The African clawed frog could prove a useful subject for scientists who are working in stem cell research to sudy. Researchers at the University of Edinburgh have discovered that the distinctive species -- which has become popular in recent years as a domestic pet -- shares with humans the same genetic mechanism that enables embryonic stem cells to divide without limit. This process, which gives embryonic stem cells the capacity to become any of the 200 cell types in the body, is fundamental to all research in the discipline.

Commentary: Maybe the African clawed frog will enabe scientists to better understand stem cells as fruit flies enabled a better understanding of human genetics.

New compound reduces stroke damage

Source: American Society for Biochemistry and Molecular Biology
Posted: May 16, 2006

Summary:

Bethesda, MD – A group of German scientists has synthesized a new compound that dramatically decreases the damage to neurons in rats demonstrating stroke symptoms.

Scientists found that their compound protected the rats' neurons and also caused neural stem cell proliferation and neuronal differentiation. Diseased animals with motor behavior deficits also showed improvement when they were given the synthetic drug.

These results suggest a potential therapeutic application specific immunosuppressive drug inhibitors in the treatment of neurodegeneration following stroke and a number of other diseases.

Commentary: Hopefully this research will provide a basis for the deveolopmment of similar compouds to decrease, or even reverse, stroke damage in humans.

Neural Stem Cell Gene Plays Crucial Role In Eye Development

Source: University of North Carolina School of Medicine
Posted: May 15, 2006

Summary:

CHAPEL HILL – Scientists at the University of North Carolina at Chapel Hill have demonstrated that normal development of the eye requires the right amount of a neural stem cell gene be expressed at the right time and place.

In the developing eye, retinal neural stem cells differentiate to form the neurons of the adult eye and form the optic nerve.

Researchers discovered that expression levels of a particular neural stem cell gene are a critical factor that regulates the differentiation of neural stem/progenitor cells in the eye.

The investigators discovered that, in mice, disruption of the gene in neural retinal stem cells leads to a kind of abnormal development of the eye called microphtalmia, or small eye. Approximately 10 percent of all human cases of microphtalmia result from mutations in the SOX2 gene.

Commentary: Hopefully this research will provide new insights and strategies into stem cell applications to treat eye diseases.

Researchers Find that Tumor Stem Cells are Good Models for Brain Tumor Research

Source: National Cancer Institute
Posted: May 15, 2006

Summary:

Researchers at the National Cancer Institute (NCI) and the National Institute of Neurological Disorders and Stroke (NINDS), both part of the National Institutes of Health, have found that tumor stem cell lines derived directly from human glioblastoma brain tumors are a better model to study the biology and physiology of glioblastomas than are cancer cell lines that have been commonly used in cancer research laboratories. They also discovered the conditions under which to preserve the biological integrity and genetic characteristics of these glioblastoma tumor stem cell lines. The study results appear in the May 15, 2006, issue of Cancer Cell

Commentary: Studying stem cell lines derived directly from gioblastoma brain tumors as opposed to cancer cell lines may enable scientists to better understand the process of tumor formation and enablem them to treat, or eliminate, tumors early, potentially preventing them from becoming cancerous and the leading cause of cancer-related deaths in children.

Factor isolated that regenerates nerve fibers: Previously unknown molecule spurs regeneration in the optic nerve

Source: Children's Hospital Boston
Posted: May 14, 2006

Summary:

Researchers have discovered a naturally occurring growth factor that stimulates regeneration of injured nerve fibers (axons) in the central nervous system.

When a growth factor, called oncomodulin, was added to retinal nerve cells in a Petri dish, with known growth-promoting factors already present, axon growth nearly doubled.

The researchers believe oncomodulin could someday prove useful in reversing optic-nerve damage caused by glaucoma, tumors or traumatic injury. They have also shown that oncomodulin works on at least one other type of nerve cell, and now plans to test whether it also works on the types of brain cells that would be relevant to treating conditions like stroke and spinal cord injury.

Commentary: Hopefully this research will prove applicable in promoting regeneration in humans with conditions where nerve tissue has been damaged or destroyed.

Stem Cells Reborn: In the wake of scientific fraud in South Korea, researchers are renewing their race to clone stem cells.

Source: Technology Review
Date: May/June 2006

Here is an article about renewed attempts to produce patient-specific stem cells from embryonic stem cells after the failed and fradulent attempts in South Korea. Hopefully this attempt will be closely monitored and shared with other scientists in order to ensure scientific validity.

Stem Cell Hope: Cellular reprogramming could make moot the ethical debate surrounding stem cells.

Source: Technology Review
Date: May/June 2006

Scientists hope to reprogram patients' cells in the laboratory into a stem cell–like state where they have the potential to turn into the body's different cell types.

Commentary: Hopefully this research will diffuse the ethical controversy surrounding embryonic stem cells.

Sunday, May 14, 2006

Stem cells may replace animal testing

Source: United Press International
Posted: May 8, 2006

COLOGNE, Germany, May 8 (UPI) -- German researchers say stem-cell testing can be used to replace hundreds of thousands of experiments on animals.

Cologne-based physician Heribert Bohlen said a test he developed using stem cells from mice can offer "at least the same amount of information about the possible toxic effects on unborn human life as experiments on mice, rabbits, rats and guinea pigs," Deutsche Welle reported.

In addition to saving animal lives, Bohlen said tests using the new stem-cell technology are more economical than conventional animal experiments.

The newspaper said SUV Rheinland Group and the company Axiogenesis developed the R.E.Tox method. The developers claim that the method can show whether or not a substance damages fetal human cells or hinders their development.

Animal welfare activists say they are happy when animals' lives can be saved, regardless of the number, but they emphasize that widespread testing on animals still continues, the newspaper said.

Commentary: Hopefully this will also lead to safer human stem cell trials and treatments.

Saturday, May 13, 2006

Isolating Adult Mesenchymal Stem Cells From Blood

Source: Ortec International, Inc
Posted: May 12, 2006

Summary:

Ortec International, Inc., a company focused on development and commercialization of products applicable to regenerative medicine and stem cell therapy, announced the results of experiments showing the ability of Fibrin Microbeads (FMB), an advanced fibrin based biomaterial, to isolate Mesenchymal adult stem cells (MSC) from human peripheral blood. The stem cells isolated by attachment to FMB were shown to be able to expand and differentiate into cartilage (chondrocytes), fat (adipocytes) and bone (osteoblasts) forming cells. This finding is unique, since it was previously thought that adult MSC were not found in blood in any significant quantity. The results using FMB demonstrate that blood may indeed prove to be a useful source of these stem cells for therapeutic applications.

Commentary: This finding is a significant advance in using bone marrow stem cells to treat human dieases.

Friday, May 12, 2006

Selectively Blocking Inflammatory Signals May Protect Mice From Multiple Sclerosis

Source: University of Chicago Medical Center
Posted: May 11, 2006

Summary:

A research team has discovered a new way to preserve the cells that surround and protect nerves, whch could lead to new treatments for demyelinating diseases such as multiple sclerosis.

The researchers showed that interferon-gamma -- a chemical signal used to activate the immune system -- plays a critical role in damaging the cells that produce myelin, the protective coating that lines healthy nerves. Interferon not only leaves these cells, called oligodendrocytes, incapable of repairing the damage but can also kill them directly.

If stem cells could be engineered to resist harmful signals such as interferon-gamma, they might be protected from the "harsh environment" present in demyelinated lesions. This protective approach of turning off a gene that protected myelin-producing cells from interferon gamma could be combined with stem cell therapy to repair nerve damage.

High interferon levels were also associated with loss of myelin sheaths around nerve connections and unprotected axons in the brain. Again, the gene was able to reduce the damage.

Commentary:

The combination approach of gene and chemical siginal manipuation with stem cells seems to not only protect healthy cells from de-myelination, but could also regenerate destoyed myelin to treat, or possibly cure, Multiple Sclerosis. Hopefully these results will also be able to be applied to human Multiple Sclerosis patients

Thursday, May 11, 2006

Rewind, Please: Nature Paper Shows That Cell Division Is Reversible

Source: Oklahoma Medical Research Foundation
Posted: April 13, 2006

Summary:

A scientist with the Oklahoma Medical Research Foundation has found a way to reverse the process of cell division.

The discovery could have important implications for the treatment of cancer, birth defects and numerous other diseases and disorders.

The findings may prove important to controlling the development and metastasis of certain cancers. It also holds promise for the prevention and treatment of birth defects and a wide variety of other conditions.

Commentary: Hopefully this will provide new insight into controlling the spread of cancers and other cellular diseases, which could enable effective medical treatments for them.

Study Says Stem Cell 'Fusion' Occurs In Tumors

Source: Oregon Health & Science University
Posted: May 9, 2006

Summary:

Scientists at Oregon Health & Science University discovered that transplanted cells derived from adult bone marrow can fuse with intestinal stem cells of both normal and diseased tissue comprising the cellular lining of intestinal walls, known as the epithelium. The findings emphasize the important role of bone marrow-derived cells in not only regeneration of damaged tissue, but also disease progression. The scientists think that cell fusion with bone marrow cells is the body's way of initiating the regeneration of epithelial tissue. They believe the findings have implications on how tissues regenerate and how, during the process of regeneration, cells may become vulnerable to future problems.

Commentary: Hopefully this will provide new insight into and enable the development of new therapeutic techniques that will improve tissue regeration and transplantation.

Stem Cell Therapeutics Corp. Announces Issuance of Second US Patent

Source: Stem Cell Therapeutics Corp.
Posted: May 11, 2006 8:30 am ET

Summary:

Stem Cell Therapeutics Corp. announced the issuance of its second U.S. patent entitled "Production of Radial Glial Cells", which protects novel methods of producing radial glial cells in the brain. The production of radial glial cells in the brain of a patient suffering from a central nervous system (CNS) disease has the potential to be a fundamental technology in the field, key to the successful development of neural stem cell based approaches for the treatment of many CNS diseases. CNS diseases possibly affected by successful implementation of this technology include stroke, acute brain injury, Alzheimer's disease, Multiple Sclerosis, Huntington's disease, Amyotrophic Lateral Sclerosis, and Parkinson's disease.

Commentary: Hopefully this patent will provide new guidelines, strategies and ideas to scientists and biotechnology firms about how to transform stem cells into effective treatments for human diseases.

Wednesday, May 10, 2006

Weill Cornell Team Identifies Key Mechanism And Cell Type In Growth Of New Blood Vessels

Source: Weill Medical College
Posted: May 10, 2006

Summary:

New research shows that a novel secreted protein called stromal-derived factor 1 (SDF-1) helps build new blood vessels by encouraging the migration of cells from the marrow to tissues in need of new vasculature. The discovery may allow scientists to move closer to treatments for vascular diseases afflicting patients with diabetes or atherosclerosis, and other patients threatened by dangerously poor circulation. The finding may also impact cancer research.

Commentary: Hopefully this protein can be transformed into effective clincal therapies for humans with heart disease, cancer and other circulatory disorders.

Tuesday, May 09, 2006

White Blood Cells From Cancer-resistant Mice Cure Cancers In Ordinary Mice

Source: Wake Forest University Baptist Medical Center
Posted: May 9, 2006

Summary:

Wake Forest University School of Medicine researchers announced that white blood cells from a strain of cancer-resistant mice cured advanced cancers in ordinary laboratory.

The transplanted white blood cells not only killed existing cancers, but also protected normal mice from what should have been lethal doses of highly aggressive new cancers.

This marks the first time that an unusually aggressive cancer was treat successfully with white blood cells.

Preliminary studies show that the white blood cells also kill "endogenous" cancers -- cancers that spring up naturally in the body's own cells.

Commentary: This research provides a basis for studying and hopefully using cell tranplantation to cure cancer in humans in the future.

Newly Discovered Dendritic Cells Generate Crucial Cells Of The Immune System

Source: Walter and Eliza Hall Institute of Medical Research
Posted: May 9, 2006

Summary:

A new type of cell that generates crucial cells of the immune system has been discovered at The Walter and Eliza Hall Institute. With this new finding will enable medical researchers to begin to consider the development of customized immune therapies using this new cell to target specific infections such as HIV, malaria and influenza; certain cancers; and even autoimmune diseases.

Commentary: Hopefully this discovery will eventually lead to the development of treatments for cellular diseases using dendritic cell applications.

Monday, May 08, 2006

New Insulin-production Method Holds Promise For Diabetics, Impacts Other Fields

Source: University of Houston
Posted: May 8, 2006

Summary:

Researchers have discovered a new mechanism for the formation of insulin crystals in the pancreas, the form in which insulin is stored in the pancreas before it is released in the bloodstream.

Commentary: This finding provides a new understanding of how insulin could be transplanted into or created in humans in order to treat diabetes and have an impact on scientific fields that deal with crystals, including the physiological and pathological crystallization of proteins and small molecules, which could lead to better understanding and treatment of human diseases.

BioE Stem Cell First Human Cord Blood Stem Cell to Turn into Lung Cell; University of Minnesota Researchers Differentiate MLPC into Type II Alveolar C

Source: Business Wire via Yahoo! Finance
Posted: May 8, 2006

Studies Continue to Evaluate Clinical and Therapeutic Potential of Rare Cord Blood Stem Cell to Treat Respiratory Conditions

Summary:

ST. PAUL, Minn.--(BioE(R), Inc., a biotechnology company that develps and supplies cellular tools for drug discovery and therapeutic research, announced it has derived its trademark Multi-Lineage Progenitor Cell(TM) (MLPC(TM)) from cord blood and differentiated it into lung cells responsible for making surfactant, a substance enabling respiration.

Researchers believe this is the first time human stem cells -- from any source -- have differentiated into type II alveolar cells, the type of epithelial cells that help stabilize the lung's air sacs during breathing.

The discovery is being hailed as a signficant breakthrough that could lead to treatments for a number of respiratory conditions -- such as emphysema and pulmonary fibrosis, as well as pulmonary injury.

Commentary: Hopefully this discovery will lead to positive treatment outcomes in human patients with respiratory conditions in the near future.

BioE Stem Cell First Human Cord Blood Stem Cell to Turn into Lung Cell; University of Minnesota Researchers Differentiate MLPC into Type II Alveolar C

Source: Business Wire
Posted: May 8, 2006

Summary:

BioE(R), Inc., a biotechnology company that develps and supplies cellular tools for drug discovery and therapeutic research, announced it has derived its trademark Multi-Lineage Progenitor Cell(TM) (MLPC(TM)) from cord blood and differentiated it into lung cells responsible for making surfactant, a substance enabling respiration.

Researchers believe this is the first time human stem cells -- from any source -- have differentiated into type II alveolar cells, the type of epithelial cells that help stabilize the lung's air sacs during breathing.

The discovery is being hailed as a signficant breakthrough that could lead to treatments for a number of respiratory conditions -- such as emphysema and pulmonary fibrosis, as well as pulmonary injury.

Commentary: Hopefully this discovery will lead to positive treatment outcomes in human patients with respiratory conditions in the near future.

Saturday, May 06, 2006

Michigan Team Singles Out Cancer Stem Cells For Attack

Source: University Of Michigan Life Sciences Institute
Posted: May 6, 2006

Summary:

Researchers have discovered a way to distinguish cancer stem cells from normal stem cells that they closely resemble, and to kill the cancer stem cells without harming the normal stem cells in the same tissue.

The finding shows that it is possible to identify differences in the mechanisms that maintain normal stem cells and cancer stem cells, and to use the differences to develop therapies that kill cancer stem cells without harming normal stem cells in the same tissue.

Commentary: This finding could provide physicians with new strategies to treat cancer in patients while reducing or eliminating the debilitating side effects of radiation treatment.

UCSF resumes human embryo stem cell work: Scientists hope to generate lines by cloning donated eggs

Source: San Francisco Chronicle
Posted: May 6, 2006

Summary:

Scientists at UCSF are trying to produce cloned human embryonic stem cells using controversial methods. The ultimate goal of the experiment is to study how deseases develop and make stem cell lines that are genetic matches to patients in order to prevent immune system rejection and effectively treat the disease.

Commentary: Hopefully this experiment will yield successful results in creating patient-matched stem cells. It will be important for this experiment to be replicated by many other scientists at the same time and strictly peer-reviewed so scientists can share compare results in order determine the validity of the experiment and prevent the research fraud that occured in South Korea. For more information about this topic, see earler posts "Lax Oversight Blamed for Stem Cell Hoax - Newspaper: Lax Oversight at University of Pittsburgh Enabled Involvement in Stem-Cell Hoax" (ABC News via Associated Press) and "Editorial: Stem-cell policy has long reach" (Mongomery Advertiser 1/7/06).

Friday, May 05, 2006

Buck researchers find Alzheimer's 'switch'

Source: Marin Independent Journal
Posted: April 25, 2006

Summary:

Researchers believe they have discovered a biochemical switch that might some day be used to prevent the onset of Alzheimer's disease. They have discovered that preventing a cut at specific amino acids in a protein at the points of connection between neurons seems to prevent Alzheimer's symptoms from developing.

Commentary: Hopefully this discovery will provide scientists with new insight into the pevention of other age-related degenerative disorders also.

Study provides first look at the 'birth' of a retina cell

Source: University of Michigan Health System
Posted: May 6, 2006

Summary:

ANN ARBOR, MI – Scientists at the University of Michigan Kellogg Eye Center have gained new insight into how an embryonic retina cell develops and then commits itself to a specific role. They have observed a small window of opportunity during which a cell has been designated to play a particular role, but has not yet begun to function as such.

The discovery provides a new understanding of how a healthy visual system develops. It also raises the possibility of re-directing the production of cell types as needed to stave off eye disease. It has enabled researchers to see the development of retinal cells for the first time.

Commentary: Hopefully this finding will lead to new applications of stem cells to treat human eye diseases.

Thursday, May 04, 2006

More Stem Cells Are Better - Expanding Hematopoietic Stem Cells With HOXB4

Source: Fred Hutchinson Cancer Research Center and PloS Medicine
Posted: May 4, 2006

Summary:

Scientists have developed a way to expand hematopoietic stem cells (HSCs )the cells that can give rise to all blood and most immune cell types in the laboratory prior to transplantation. The expression of a gene can instruct stem cells to divide and make more stem cells. When the researchers tested those expanded cell populations in monkeys that had received a lethal dose of radiation, they found that they were better at reconstituting the monkeys' immune and blood systems.

Scientists believe that such "clean expansion" of HSCs holds great potential for application in human transplant recipients.

Commentary: Hopefully this finding will lead to improved treatments and outcomes for Leukemia and cancer patients

Wednesday, May 03, 2006

A Brief Timeline of the Stem-Cell Debate

Here is an interesting timeline by NPR about this history of the debate over embryonic stem cell research in the United States. I started following this debate in Mid-1998.

Tuesday, May 02, 2006

Scientists to study limb regrowth

Source: Pittsburgh Tribune-Review
Posted: May 3, 2006

Summary:

The U.S. military has given $3.7 million to help University of Pittsburgh scientists in their efforts to regrow human limbs.
The research already under way at Pitt's McGowan Institute for Regenerative Medicine one day could benefit soldiers who underwent single or multiple amputations.

Commentary: Hopefully this will lead to new breakthroughs in regenerative medicine that help improve the lives of people with debilitating amputations and other injuries.

Tohoku University Verifies That Mouse Embryonic Stem Cells Can Generate Neural Cell Species (cerebral palsy)

Source: Japan Corporate News
Posted: May 2, 2006

Summary:

Tohoku University's Biomedical Engineering Research Organization (TUBERO), in collaboration with the University of Cambridge and Cardiff University, has verified that neural cell species can be derived from mouse embryonic stem cells.

Protein's Potential As A Regulator Of Brain Activity Discovered

Source: University of California - Irvine
Posted: May 2, 2006

Summary:

Researchers have found that a protein best known for building connections between nerve cells and muscle also plays a role in controlling brain cell activity. The discovery could lead therapeutic applications in the development of new drugs for treatment of epilepsy and neurodegenerative disorders.

Commentary: Hopefully this discovery will provide scientists with new insight into how to improve brain function and treat neurological disorders, diseases and conditions.

Monday, May 01, 2006

Cutting-Edge Research on Repair of Spinal Cord Injuries Presented in Journal of Neurotrauma

Source: Mary Ann Liebert, Inc.
Posted: May 1, 2006

Advances in research to develop and refine novel techniques for repairing injured spinal cords have yielded promising strategies for regenerating damaged neural tissue, inhibiting scar tissue formation, repairing underlying molecular defects, and restoring function.

Commentary: Hopefully these advances will accelerate the development of stem cell treatments for spinal cord injuries.

New Findings Support Promise of Using Stem Cells to Treat Neurodegenerative Diseases

Source: Mary Ann Liebert, Inc.
Posted: Monday May 1, 2006 10:47 am ET

A new study suggests that human stem cells derived from bone marrow are predisposed to develop into a variety of nerve cell types, supporting the promise of developing stem cell-based therapies to treat neurodegenerative disorders such as Parkinson's disease and multiple sclerosis.

Researchers conclude that these bone marrow-dervide stem cells are predisposed to differentiate into neuronal cells under the proper conditions. When transplanted into the central nervous system, they will develop into a variety of functional neural cell types, making them a potent resource for cell-based therapy.

Commentary: This finding seems to provide new insights into cell differentiation and creation of nerve cells to treat neurological diseases and conditions.

Stem Cells Might Treat Genetic Kidney Disease: Therapy reverses Alport syndrome in mice, researchers report

Source: HealthDay News
Posted: April 28, 2006

Scientists announced they have bone marrow stem cells to reverse genetic kidney disease in mice.

The team said the stem cells were able to regenerate damaged renal cells in a mouse model of Alport syndrome, the second most common genetic cause of kidney failure in humans.

The study offers the first example of how stem cells may prove useful in repairing defects and restoring organ function and also provides a potential new strategy for treating Alport syndrome.

Commentary: Hopefully this study can be translated into effective stem cell-based treatments for human kidney diseases and ailments.