Author Archives: admin


Stem Cell Clinic > Articles by: admin

Are Stem Cells The Cure To Baldness?

By Stem Cell Medicine

January 28, 2014

Brett Smith for redOrbit.com Your Universe Online

While a Chinese cream may not have cured George Costanzas baldness in a classic Seinfeld episode, stem cell research from scientists at the University of Pennsylvania has shown the potential for regenerating hair follicles which could lead to relief for hair-challenged men everywhere.

According to a new report published in the journal Nature Communications, the Pennsylvania researchers have developed a groundbreaking method for converting adult cells into epithelial stem cells (EpSCs). Similar previous efforts have failed to generate an adequate number of hair-follicle-generating stem cells.

In the study, epithelial stem cells were inserted into immunocompromised mice. The stem cells regenerated the various cell types for human skin and hair follicles, and provided structurally identifiable hair shafts, raising the possibility of hair regeneration in humans.

The study team began with human skin cells referred to as dermal fibroblasts. By incorporating three genes, they modified those cells into induced pluripotent stem cells (iPSCs), which have the capacity to differentiate into any cell types in the human body. Next, they modified the iPS cells into epithelial stem cells, commonly located at the base of hair follicles.

Starting with procedures other research groups had worked out to transfer iPSCs into skin cells, Xus team figured out that by carefully manipulating the timing of the cell growth factors, they could drive the iPSCs to produce large quantities of epithelial stem cells. This method was able to turn more than 25 percent of the iPSCs into epithelial stem cells within 18 days. Those cells were then purified based on the proteins they showed on their surfaces.

Comparison of the engineered cells with epithelial stem tissue obtained from hair follicles revealed the team succeeded in making the cells they set out to produce. After mixing all those cells with mouse follicular inductive dermal cells and attaching them onto the pores and skin of immunodeficient mice, the team was able to produce efficient outer layers of human skin tissue and follicles structurally similar to those generated by human hair.

This is the first time anyone has made scalable amounts of epithelial stem cells that are capable of generating the epithelial component of hair follicles, said study author Dr. Xiaowei George Xu, associate professor of pathology and laboratory medicine and dermatology at the university. He added that these cells could be used for healing, cosmetics and hair regeneration.

Xu cautioned that iPSC-derived epithelial stem cells are not yet ready for human subjects.

See original here:
Are Stem Cells The Cure To Baldness?

Converting Adult Human Cells to Hair-Follicle-Generating Stem Cells

By Stem Cell Medical Center

Contact Information

Available for logged-in reporters only

Newswise PHILADELPHIA - If the content of many a situation comedy, not to mention late-night TV advertisements, is to be believed, theres an epidemic of balding men, and an intense desire to fix their follicular deficiencies.

One potential approach to reversing hair loss uses stem cells to regenerate the missing or dying hair follicles. But it hasnt been possible to generate sufficient number of hair-follicle-generating stem cells until now.

Xiaowei George Xu, MD, PhD, associate professor of Pathology and Laboratory Medicine and Dermatology at the Perelman School of Medicine, University of Pennsylvania, and colleagues published in Nature Communications a method for converting adult cells into epithelial stem cells (EpSCs), the first time anyone has achieved this in either humans or mice.

The epithelial stem cells, when implanted into immunocompromised mice, regenerated the different cell types of human skin and hair follicles, and even produced structurally recognizable hair shaft, raising the possibility that they may eventually enable hair regeneration in people.

Xu and his team, which includes researchers from Penns departments of Dermatology and Biology, as well as the New Jersey Institute of Technology, started with human skin cells called dermal fibroblasts. By adding three genes, they converted those cells into induced pluripotent stem cells (iPSCs), which have the capability to differentiate into any cell types in the body. They then converted the iPS cells into epithelial stem cells, normally found at the bulge of hair follicles.

Starting with procedures other research teams had previously worked out to convert iPSCs into keratinocytes, Xus team demonstrated that by carefully controlling the timing of the growth factors the cells received, they could force the iPSCs to generate large numbers of epithelial stem cells. In the Xu study, the teams protocol succeeded in turning over 25% of the iPSCs into epithelial stem cells in 18 days. Those cells were then purified using the proteins they expressed on their surfaces.

Comparison of the gene expression patterns of the human iPSC-derived epithelial stem cells with epithelial stem cells obtained from human hair follicles showed that the team had succeeded in producing the cells they set out to make in the first place. When they mixed those cells with mouse follicular inductive dermal cells and grafted them onto the skin of immunodeficient mice, they produced functional human epidermis (the outermost layers of skin cells) and follicles structurally similar to human hair follicles.

This is the first time anyone has made scalable amounts of epithelial stem cells that are capable of generating the epithelial component of hair follicles, Xu says. And those cells have many potential applications, he adds, including wound healing, cosmetics, and hair regeneration.

See the rest here:
Converting Adult Human Cells to Hair-Follicle-Generating Stem Cells

Medical breakthrough Cord Blood Center opening in Oklahoma

By Stem Cell Medical Center

Posted on: 1:16 pm, January 28, 2014, by Ashley Kringen and KFOR-TV, updated on: 05:37pm, January 28, 2014

Oklahoma City, Okla.-Families at the OU Med Center have the opportunity to help save lives by donating umbilical cord blood, to be used as a source of life for people battling leukemia and other blood disorders.

There are only 24 cord blood centers worldwide and this is the first in Oklahoma.

Dr. James Smith with the Oklahoma Blood Institute said, Were really hoping to be able to meet a very special need.

Each year thousands of people are diagnosed with blood cancers or other blood diseases.

For some, the only hope of a cure is a marrow transplant.

Umbilical cord blood can be used as an alternative to supply those needs.

The goal for Oklahomas Cord Blood Center is to focus on the minority population.

Dr. Smith said Vastly underrepresented in terms of having cord blood or even stem cell donations that are available for transplants.

Mothers would have the option of donating their babys umbilical cord, rather than just throwing it away.

Excerpt from:
Medical breakthrough Cord Blood Center opening in Oklahoma

:: 28, Jan 2014 :: SINGAPORE SCIENTISTS SUCCEED IN MANIPULATING STEM CELLS INTO LIVER AND PANCREAS PRECURSOR CELLS

By Uncategorized

28 January 2014-Scientists from the Genome Institute of Singapore (GIS) in A*STAR have developed a novel method of directing human pluripotent stem cells (hPSCs) into highly pure populations of endoderm[1], a valuable cell type that gives rise to organs including the liver and pancreas.

These cells are highly sought-after for therapeutic and biotechnological purposes, but have been historically difficult to attain from hPSCs. The ability to generate pure endoderm at higher yields from hPSCs is a key and important step towards the use of stem cells in clinical applications.

The discovery, published in the prestigious scientific journal Cell Stem Cell in January 2014, was led by Dr Bing Lim, Senior Group Leader and Associate Director of Cancer Stem Cell Biology at the GIS, Dr Lay Teng Ang, a postdoctoral fellow from Dr Lims lab, and Kyle Loh, a graduate student at Stanford University School of Medicine.

hPSCs are stem cells that can generate over 200 distinct cell types in the human body. They respond to multiple external protein instructions to differentiate into other cell types. Therefore, generating one single cell type from hPSCs, and a pure population of that given cell type, is delicate as hPSCs have a tendency to also form other types of cells.

Employing a highly systematic and novel approach, the group screened for proteins and chemicals that promote the formation of a single desired cell type, and concurrently block induction of unwanted cell types. This strategy uncovered a combination of triggers that could drive hPSCs towards pure populations of endoderm. The valuable cells produced and the insights gained from this work have brought stem cells one step closer to clinical translation and furthered basic research into the understanding of how cell fates are specified during stem cell differentiation.

Link:
:: 28, Jan 2014 :: SINGAPORE SCIENTISTS SUCCEED IN MANIPULATING STEM CELLS INTO LIVER AND PANCREAS PRECURSOR CELLS

Failure to legislate ‘will hurt research’

By Stem Cell Treatment

Failure to legislate will hurt research

Tuesday, January 28, 2014

Even though stem cell manufacture has just been licensed in this country, the Governments ongoing failure to legislate in this area means pharmaceutical giants will still be wary of investing here, according to an expert in stem cell therapy.

CCMI General Manager Andrew Finnerty, CCMI Director Tim O'Brien, Minister Sean Sherlock and President of NUI Galway Dr. James Browne. Photograph by Aengus McMahon

Once the stem cells are harvested from the bone marrow of adult donors, they are grown in the Galway laboratory to generate sufficient quantities.

The first clinical trial using these stem cells is being funded by the Health Research Board and Science Foundation Ireland and will investigate the safety of using mesenchymal stem cells (MSCs) isolated from bone marrow for the treatment of critical limb ischemia, a complication associated with diabetes which can lead to limb amputation.

John ODea of the Irish Medical Devices Association (IMDA) said the centre was a key step.

I look forward to seeing its continued growth to assist in developing the skill sets and techniques that will be needed to embrace the new manufacturing opportunities that this exciting area will bring, he said.

The centre, one of a handful in Europe authorised for stem cell manufacture, has been developed by researchers at NUIGs regenerative medicine institute.

However, Dr Stephen Sullivan, chief scientific officer with the Irish Stem Cell Foundation warned all stem cell research operates at a pan-global level driven by big pharma and international equity firms and these players will only engage with researchers in countries where there is solid stem cell legislation in place. He welcomed the centre as a first step but said if Ireland is to compete at a top international standard, legislation remains necessary.

Read the original:
Failure to legislate ‘will hurt research’

Making Music Videos Helps Young Cancer Patients Cope With Treatment

By Stem Cell Treatment

January 28, 2014

Ranjini Raghunath for redOrbit.com Your Universe Online

Cancer treatment through chemotherapy, radiation or stem cell therapies can be physically and mentally exhausting for patients, especially younger ones. Many factors can help them feel positive about themselves and their treatment, including spiritual practices, supportive home environments and strong social connections with friends, family and physicians.

Now, a new study shows that making music videos and writing song lyrics may also help young cancer patients better cope with their treatment.

Researchers at the Indiana University School of Nursing, Indianapolis, carried out the music therapy intervention study, which was published online in the journal Cancer.

113 young patients aged 11-24 undergoing stem cell transplants for cancer were selected randomly for the study. Half of them were given audiobooks (the control group) and the other half were given three weeks to write down song lyrics, collect images and record music videos.

Patients in the second (test) group went through six training sessions each with a music therapist, who helped them identify and write about what was important to them, and guided them in creating the videos.

It really targeted them writing, having an opportunity to write about whats important to them, co-author of the study and music therapist, Sheri Robb, told Reuters. A lot of these kids as theyre going through treatment, they tend to not talk about these things.

The patients also had a chance to share the videos they created with family and friends. After about 100 days of treatment, patients in the test group reported that making those videos helped them better connect with their loved ones.

The intervention therapy helped the young patients feel stronger, more positive and helped improve their relationships with family and physicians, based on their responses to follow-up questionnaires, the researchers reported.

Follow this link:
Making Music Videos Helps Young Cancer Patients Cope With Treatment

Q&A – Stem cells could offer treatment for a myriad of diseases

By Stem Cell Treatment

Q&A - Stem cells could offer treatment for a myriad of diseases

Tuesday, January 28, 2014

Q.What are stem cells?

Stem cells are different however as they are at an earlier stage in cell development and this means they can make more cells and transform into different cell types such as a skin stem cell can make all the different types of skin cells.

Q. And there are two types? A.Yes. There are two types of stem cells: embryonic stem cells and adult stem cells. Embryonic stem cells can generate all cells of the human body. Adult stem calls generate a more limited number of human cell types.

Q.Why are stem cells so important? A.For many years, adult stem cells have been used to treat rare blood and certain cancers.

However, adult stem cells cant generate all cell types. For example, scientists say there doesnt appear to be an adult stem cell that can make insulin- secreting cells of the pancreas. Embryonic stem cells can, however, as they can generate all cell types and the aim of scientists is to use these embryonic cells to generate healthy tissue to replace cells compromised by disease. This means that embryonic cells are more scientifically useful.

Q. And its also embryonic cells that are the more controversial, right? A.The use of embryonic stem cells is controversial here and in other countries as certain groups believe it is morally wrong to experiment on an embryo that could become a human. Embryonic stem cells are taken from embryos left over after assisted fertility treatments. According to the Irish Stem Cell Foundation, if they werent used for research into human disease, they would be discarded as medical waste. Embryos are not created purely for research purposes they say.

Q. Why are they so useful? A. Among the conditions which scientists believe may eventually be treated by stem cell therapy are Parkinsons disease, Alzheimers disease, heart disease, stroke, arthritis, diabetes, burns and spinal cord damage. Early trials are under way for treating forms of blindness. It is also hoped we can learn from embryonic stem cells how early body tissues develops and more about the pathway of diseases. This will enable us to make better and more effective drugs.

Irish Examiner Ltd. All rights reserved

Continue reading here:
Q&A - Stem cells could offer treatment for a myriad of diseases

Galway stem cell lab to be used in fight against heart disease and diabetes

By Stem Cell Medicine

27/01/2014 - 09:35:51Back to Ireland Home

Stem cells for human use are to be made in a university lab in the first medical programme of its kind in Ireland.

Scientists behind the new facility at the National University of Ireland Galway will aim to produce adult cells to combat conditions like arthritis, heart disease and diabetes.

Stem cells created at the lab will be used in clinical trials following regulatory approval the first of which is to test their effects on critical limb ischemia, a common complication associated with diabetes which often results in amputation.

The cells, mesenchymal stem cells (MSCs), will undergo safety tests after being isolated from bone marrow from donors and grown in the laboratory to generate sufficient quantities.

The university said it will position it as a global player in regenerative medicine.

NUI Galways Centre for Cell Manufacturing Ireland is the first facility on the island of Ireland to receive a licence from the Irish Medicines Board to manufacture culture-expanded stem cells for human use.

And it is one of less than half a dozen in Europe authorised for the process.

President of NUI Galway Dr Jim Browne said: Developing Galways role as med-tech hub of global standing, the Centre for Cell Manufacturing Ireland captures NUI Galways commitment to bring bold ideas to life.

Innovation can bridge the gap between patient and provider and meet the needs of industry and the wider society in a balanced way.

Continued here:
Galway stem cell lab to be used in fight against heart disease and diabetes

Ireland uni lab in stem cells move

By Stem Cell Medicine

Stem cells for human use are to be made in a university lab in the first medical program of its kind in Ireland.

Scientists behind the new facility at the National University of Ireland (NUI) Galway will aim to produce adult cells to combat conditions like arthritis, heart disease and diabetes.

Stem cells created at the lab will be used in clinical trials following regulatory approval - the first of which is to test their effects on critical limb ischemia, a common complication associated with diabetes which often results in amputation.

The cells, mesenchymal stem cells (MSCs), will undergo safety tests after being isolated from bone marrow from donors and grown in the laboratory to generate sufficient quantities.

The university said it will position it as a global player in regenerative medicine.

NUI Galway's Centre for Cell Manufacturing Ireland is the first facility in Ireland to receive a licence from the Irish Medicines Board to manufacture culture-expanded stem cells for human use.

And it is one of less than half a dozen in Europe authorised for the process.

'Developing Galway's role as med-tech hub of global standing, the Centre for Cell Manufacturing Ireland captures NUI Galway's commitment to bring bold ideas to life,' said NUI Galway president Dr Jim Browne.

'Innovation can bridge the gap between patient and provider and meet the needs of industry and the wider society in a balanced way.'

Stem cells are best described as serving as the body's repair mechanism and in recent years science has isolated them from tissues such as bone marrow and fat to recreate them in laboratory settings.

Read the rest here:
Ireland uni lab in stem cells move

→←