Stem Cell Clinic

A shift in stem cell research

By Stem Cell Treatment

Jan. 10, 2014

A team of engineers at the University of Wisconsin-Madison has created a process to improve the creation of synthetic neural stem cells for use in central nervous system research.

The process, outlined in a paper published in Stem Cells last month, will improve the state of the art in the creation of synthetic neural stem cells for use in central nervous system research.

Randolph Ashton

Human pluripotent stem cells have been used to reproduce nervous-system cells for use in the study and treatment of spinal cord injuries and of diseases such as Parkinson's and Huntington's.

Currently, most stem cells used in research have been cultured on mouse embryonic fibroblasts (MEFs), which require a high level of expertise to prepare. The expertise required has made scalability a problem, as there can be slight differences in the cells used from laboratory to laboratory, and the cells maintained on MEFs are also undesirable for clinical applications.

Removing the high level of required skill and thereby increasing the translatability of stem cell technology is one of the main reasons why Randolph Ashton, a UW-Madison assistant professor of biomedical engineering and co-author of the paper, wanted to create a new protocol.

Rather than culturing stem cells on MEFs, the new process uses two simple chemical cocktails to accomplish the same task. The first mixture, developed by John D. MacArthur Professor of Medicine James Thomson in the Morgridge Institute for Research, is used to maintain the stem cells in the absence of MEFs. The second cocktail allows researchers to push the stem cells toward a neural fate with very high efficiency.

These chemical mixtures help to ensure the consistency of the entire process and give researchers a better understanding of what is driving the differentiation of the cells. "Once you remove some of the confounding factors, you have better control and more freedom and flexibility in terms of pushing the neural stem cells into what you want them to become," says Ashton.

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A shift in stem cell research

Stem Cells In Use – Learn Genetics

By Stem Cell Doctors

In 1968, doctors performed the first successful bone marrow transplant. Bone marrow contains somatic stem cells that can produce all of the different cell types that make up our blood. It is transplanted routinely to treat a variety of blood and bone marrow diseases, blood cancers, and immune disorders. More recently, stem cells from the blood stream (called peripheral blood stem cells) and umbilical cord stem cells have been used to treat some of the same blood-based diseases.

Leukemia is a cancer of white blood cells, or leukocytes. Like other blood cells, leukocytes develop from somatic stem cells. Mature leukocytes are released into the bloodstream, where they work to fight off infections in our bodies.

Leukemia results when leukocytes begin to grow and function abnormally, becoming cancerous. These abnormal cells cannot fight off infection, and they interfere with the functions of other organs.

Successful treatment for leukemia depends on getting rid of all the abnormal leukocytes in the patient, allowing healthy ones to grow in their place. One way to do this is through chemotherapy, which uses potent drugs to target and kill the abnormal cells. When chemotherapy alone can't eliminate them all, physicians sometimes turn to bone marrow transplants.

In a bone marrow transplant, the patient's bone marrow stem cells are replaced with those from a healthy, matching donor. To do this, all of the patient's existing bone marrow and abnormal leukocytes are first killed using a combination of chemotherapy and radiation. Next, a sample of donor bone marrow containing healthy stem cells is introduced into the patient's bloodstream.

If the transplant is successful, the stem cells will migrate into the patient's bone marrow and begin producing new, healthy leukocytes to replace the abnormal cells.

New evidence suggests that bone marrow stem cells may be able to differentiate into cell types that make up tissues outside of the blood, such as liver and muscle. Scientists are exploring new uses for these stem cells that go beyond diseases of the blood.

While most blood stem cells reside in the bone marrow, a small number are present in the bloodstream. These peripheral blood stem cells, or PBSCs, can be used just like bone marrow stem cells to treat leukemia, other cancers and various blood disorders.

Since they can be obtained from drawn blood, PBSCs are easier to collect than bone marrow stem cells, which must be extracted from within bones. This makes PBSCs a less invasive treatment option than bone marrow stem cells. PBSCs are sparse in the bloodstream, however, so collecting enough to perform a transplant can pose a challenge.

Newborn infants no longer need their umbilical cords, so they have traditionally been discarded as a by-product of the birth process. In recent years, however, the stem-cellrich blood found in the umbilical cord has proven useful in treating the same types of health problems as those treated using bone marrow stem cells and PBSCs.

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Stem Cells In Use - Learn Genetics

B.C. Women’s Hospital’s umbilical cord blood bank offers gift of life

By Stem Cell Doctors

North Vancouver resident Hector Walker owes his life to stem cells derived from the umbilical cord blood of a pair of wee strangers.

Walker, who is 62 and had leukemia, had no clue where his doctors at Vancouver General Hospital found the donor stem cells for his 2010 transplant. But hes grateful they did and thrilled that finding a match may become less cumbersome now that B.C. Womens Hospital will soon start asking expectant mothers to donate their newborn babies cord blood, a rich and versatile source of potentially healing stem cells.

At a news conference today, the biggest maternity hospital in the province will be named as a collection site for the new National Public Cord Blood Bank. It is the second hospital in the country to get that distinction (after Ottawa) and will serve as one of only four collection sites across the country.

Finding a bone marrow match was more of a problem for me because Im black. Even my brother wasnt a match, said Walker. Life is so unpredictable. People should understand they can save someones life by doing this.

The hospital was designated a collection site because so many babies are delivered there (7,000 annually) and the patient population is ethnically diverse.

Once a pilot phase of up to half a year is over, healthy, pregnant women giving birth at B.C. Womens will be able to donate the blood from the umbilical cords of their babies. Until now, most umbilical cords have been discarded, which is why Dr. Tanya Petraszko, a Canadian Blood Services (CBS) official, says: Our competition is the garbage can.

Canada has access to international sources but a public bank here should mean that Canadian doctors wont as often have to search the world for life-saving stem cells, especially for difficult-to-match, ethnically diverse patients like Walker (originally from Jamaica).

Because most registered blood and bone marrow donors are Caucasian, finding matches for minority groups is most challenging. In recent years, CBS has been trying to reach out to First Nations, Asian and other ethnic communities in a bid to boost that supply.

Only half of patients who need an unrelated stem cell transplant are able to find one and there are about 1,000 patients across Canada waiting for stem cell transplants. A stem cell transplant requires a DNA match between the donor and recipient, but cord blood cells are more adaptable so theres less chance of a rejection.

Canada is the last G8 country to establish a national bank. It was announced by federal and provincial governments nearly three years ago, after years of deliberations. Nearly $50 million was earmarked in start-up funds but CBS committed to forming a development group to raise another $12.5 million from philanthropic Canadians. (There is still $4 million left to raise).

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B.C. Women's Hospital's umbilical cord blood bank offers gift of life

Stem Cell Treatment for Arthritis

By Stem Cell Medicine

Stem Cell Treatment for Arthritis

Mesenchymal stem cells have been shown in recent studies to have significant effects on a variety of conditions including both rheumatoid arthritis and osteoarthritis. As the mechanisms behind these two forms of arthritic degeneration differ, the potential stem cell treatment for arthritis is likely to be administered differently and make use of a variety of properties of stem cells, such as their regenerative abilities, and the capacity for some stem cell types to help regulate immune function. Patients undergoing stem cell treatments for unrelated conditions have reported significant relief from their arthritis after such therapy even though this was not the reason for them obtaining treatment initially; these stories are anecdotal however, and do not constitute evidence for applying treatment more widely. Intravenous stem cell therapy using haematopoietic stem cells has been used extensively in veterinary medicine for a number of years. Often, stem cell treatment for arthritis in companion animals and race horses with signs of the condition (both rheumatoid and osteoarthritis) direct injections of stem cells into the damaged joint have proven effective at inhibiting the autoimmune attacks consistent with RA, reducing inflammation and pain in the joint, and supporting active tissue regeneration.

Stem Cell Treatment for Arthritis brings hope to millions suffering from arthritic conditions

The conditions under which stem cells are implanted appear to make all the difference between active regeneration and hypertrophy of joint tissue. Researchers are wary of the ad hoc use of stem cells for joint repair as it may be that the growth encouraged by stem cells may be adversely influenced by pre-existing pathology in an arthritis patients joints leading to exaggerated tissue growth that may further exacerbate the problems. Using a small number of chondrocytes alongside mesenchymal stem cells may make a significant difference in cultivating healthy cartilage repair without hypertrophy (excessive growth) occurring (Aung, et al, 2011).

A further study by Abedi (et al, 2010) appears to show that the use of scaffolding material alongside mesenchymal stem cell administration improves the healing process in induced articular cartilage defects in animal models (rabbits) in comparison to the stem cells alone. By encouraging differentiation into cartilage tissue types the almost universal progression of articular cartilage damage to osteoarthritis could, theoretically, be prevented using stem cell therapy. MSCs from osteoarthritis patients used in research has also led to the development of intelligent surfaces which can effectively prevent hypertrophy of such stem cells in the laboratory whilst facilitating cartilage regrowth (Petit, et al, 2011); further research in vitro is required to assess their use for therapeutic purposes however. A review of current research into synoviocytes and chondrogenesis has also highlighted a potential source of stem cells which may actively aid repair of avascular meniscal injuries that are otherwise unresponsive to treatment and commonly lead to osteoarthritis (Fox, et al, 2011).

Mesenchymal stem cells, which can differentiate into bone, cartilage, and a number of other cell types appear to hold great potential for easing osteoarthritis joint pain and possibly regenerating damaged tissue. However, MSC therapy alone is unlikely to address the systemic issue of autoimmune rheumatoid arthritis. Just as haematopoietic stem cells can help combat leukaemia, their use following myeloablation (the destruction of the bodys immune-forming cells in the bone marrow) looks promising for treatment of RA (Sykes, et al, 2005).

A study by Bhattacharya (et al, 2001) to test the safety of using umbilical cord blood for those with a variety of conditions found that the transfusions were well tolerated by all 62 of the patients and that the cord blood had the advantages of a higher oxygen carrying capacity, many growth factors and cytokines, and was also less likely to cause an immune reaction than adult whole blood transfusions. The study did not aim to assess the potential benefits of the stem cell treatment, only the safety of such procedures for those with rheumatoid arthritis, arthritis in the neck, ankylosing spondylitis, and systemic lupus erythematosus, amongst other conditions.

The ability to derive stem cells from patients themselves is also opening up a whole new realm of possible treatments which do not require the use of human embryonic stem cells or cord blood stem cells which are less readily available and mired in some ethical controversy. Autologous stem cell transplants are also advantageous as they do not trigger an immune response causing rejection of the material in the body; immunosuppressant drugs are, therefore, not necessary. Jorgensen (et al, 2004) stated that mesenchymal stem cells appeared to be good candidates for the regeneration of arthritic tissue and that more research was required to assess their viability. This research has been carried out in subsequent years by a whole host of scientists such as Mao (2005), Gonzlez (et al, 2009), and Tyndall (et al, 2010).

Some studies have looked at animal models with induced rheumatoid arthritis and their reaction to mesenchymal stem cell transplantation. Across a number of studies the effects have been positive, with the Th1-induced autoimmune response down-regulated by the stem cell treatment. Human adipose-derived mesenchymal stem cells also decreased inflammatory cytokines and chemokines in the mouse models and actively increased the production of antiinflammatory substance interleukin-10 in lymph nodes and joints. A, perhaps unexpected, benefit of human AD-MSCs was the de novo generation of antigen-specific CD4+CD25+FoxP3+ Treg cells, which were then able to suppress those immune system cells which react against the bodys own tissue.

According to Passweg and Tyndall (2007), more than a 1000 patients with autoimmune diseases have been treated with haematopoietic stem cells between 1996 and 2007. Most of these patients had Multiple Sclerosis, systemic lupus erythematosus, RA, or systemic sclerosis and many of those treated have enjoyed long-term disease-free remissions and immune reconstitution since treatment. Unfortunately, there remains a risk of treatment related mortality with such stem cell therapy as it relies on the destruction initially of the patients immune system in order to reset it with the infused stem cells and remove the autoimmune components. This temporarily opens the patients up to increased risks of infection which can be fatal. Improvements in patient care during the treatments have reduced this risk substantially, but it is still a major consideration, particularly for those otherwise doing well on conventional medications. Tyndall and Laar (2010) found that incomplete, low immunoablative intensity, early conditioning was related to patient relapse. This is most likely due to residual lesional effector cells; the patients faulty immune system effectively repopulated itself with self-reactive immune cells when only partially destroyed by initial myeloablative treatment.

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Stem Cell Treatment for Arthritis

Stem cells injected into nerve guide tubes repair injured peripheral nerve

By Stem Cell Medical Center

PUBLIC RELEASE DATE:

9-Jan-2014

Contact: Robert Miranda cogcomm@aol.com Cell Transplantation Center of Excellence for Aging and Brain Repair

Putnam Valley, NY. (Jan. 9, 2014) Using skin-derived stem cells (SDSCs) and a previously developed collagen tube designed to successfully bridge gaps in injured nerves in rat models, the research team in Milan, Italy that established and tested the procedure has successfully rescued peripheral nerves in the upper arms of a patient suffering peripheral nerve damage who would have otherwise had to undergo amputations.

The study will be published in a future issue of Cell Transplantation but is currently freely available on-line as an unedited early e-pub at: http://www.ingentaconnect.com/content/cog/ct/pre-prints/content-ct1096.

"Peripheral nerve repair with satisfactory functional recovery remains a great surgical challenge, especially for severe nerve injuries resulting in extended nerve defects," said study corresponding author Dr. Yvan Torrente, of the Department of Pathophysiology and Transplantation at the University of Milan. "However, we hypothesized that the combination of autologous (self-donated) SDSCs placed in collagen tubes to bridge gaps in the damaged nerves would restore the continuity of injured nerves and save from amputation the upper arms of a patient with poly-injury to motor and sensory nerves."

Although autologous nerve grafting has been the 'gold standard' for reconstructive surgeries, these researchers felt that there were several drawbacks to that approach, including graft availability, donor site morbidity, and neuropathic pain.

According to the researchers, autologous SDSCs have advantages over other stem cells as they are an accessible source of stem cells rapidly expandable in culture, and capable of survival and integration within host tissues.

While the technique of using the collagen tubes - NeuraGen, an FDA-approved device - to guide the transplanted cells over gaps in the injured nerve had been previously developed and tested by the same researchers with the original research successfully saving damaged sciatic nerves on rats, the present case, utilizing the procedure they developed employing SDSCs and a nerve guide, is the first to be carried out on a human.

Over three years, the researchers followed up on the patient, assessing functional recovery of injured median and ulnar nerves by pinch gauge test and static two-point discrimination and touch test with monofiliments along with electrophysiological and MRI examinations.

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Stem cells injected into nerve guide tubes repair injured peripheral nerve

Stem Cell 101: Mayo Clinic Expert Answers Commonly Asked …

By Stem Cell Clinic

mayonewsreleases (@mayonewsreleases) published a blog post November 28th, 2012

Stem Cell 101: Mayo Clinic Expert Answers Commonly Asked Questions

ROCHESTER, Minn. Next week, more than 1,200 people from 25 countries are expected to attend the 8th Annual World Stem Cell Summit" in West Palm Beach, Fla., a gathering sponsored by Mayo Clinic. As those close to the science explore potential stem cell applications, many patients have questions about what stem cells are and how they are being used. Timothy Nelson, M.D., Ph.D., director of Mayo Clinic's Regenerative Medicine Consult Service, answers some of the most commonly asked questions about stem cells:

MULTIMEDIA ALERT: Multimedia resources, including a Medical Edge package, are available for journalists to download on the Mayo Clinic News Network.

What are stem cells?

Stem cells are the body's raw materials. These cells have the ability to renew themselves or change to become specialized cells with a more specific function, such as blood cells, brain cells, heart muscle or bone.

Where do stem cells come from?

How are stem cells being used to treat diseases?

Stem cell transplants, also known as bone marrow transplants, have been performed in the United States since the late 1960s. These transplants use adult stem cells. Thanks to new technology, researchers are exploring the use of stem cells to treat a range of conditions. For example, teams at Mayo Clinic are investigating the use of adult stem cells to delay or eliminate the need for some hip replacements. Adult stem cells are being tested to treat degenerative diseases such as heart failure. Stem cells from umbilical cord blood have been successfully used in clinical trials to treat cancer and blood-related diseases.

What does the future hold for stem cell therapy?

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Stem Cell 101: Mayo Clinic Expert Answers Commonly Asked ...

Learn about stem cell therapy and application at Vail event

By Stem Cell Treatment

VAIL The Vail Symposium hosts Dr. Scott Brandt, Dr. Kristin Comella and Dr. Stan Jones who will lead an interactive discussion on the history, evolution, practical applications and clinical results around stem cell treatments Friday evening in Vail.

The program is part of the Symposiums ongoing Living at Your Peak series, which is dedicated to exploring new breakthroughs in medicine and helping people live healthier, more active lives.

This program fits perfectly with our Living at Your Peak series, said Tracey Flower, the Symposiums executive director. There is a lot surrounding this topic, and has been for quite some time. With recent research in a changing medical industry, it is a great topic to discuss.

An example of breakthroughs in stem cell therapy comes in the form of the record-shattering Broncos quarterback, Peyton Manning. After failed surgeries, Manning traveled to Germany to undergo stem cell treatment on his cervical spine. At 37, Manning is playing his best football.

During this educational program, panelists will discuss the evolution of the stem cell field, explain current procedures, present research and clinical findings, and talk about the potential for stem cell applications in the future.

Join the Vail Symposium at 5 p.m. Friday at the Antlers Hotel in Vail for this event, titled: Stem Cells: The Future of Medicine is Now. Space is limited; reserve your tickets at http://www.vailsymposium.org/calendar or call the Vail Symposium at 970-476-0954.

More about the panelists

Dr. Scott Brandt: Brandt, the medical director of ThriveMD in Edwards, specializes in regenerative and restorative medicine. Brandt completed his undergraduate studies at the University of Michigan at Ann Arbor, and attended medical school at Bowman Gray School of Medicine, Wake Forest University in North Carolina. He then completed his anesthesiology residency training and internship at the University of Illinois and Michael Reese Hospitals in Chicago. As a resident in anesthesiology, Brandt specialized in interventional pain management. Since 1997, this focus has kept him on the leading edge of medical innovations that provide longer lasting solutions for acute and chronic pain. The advancement of stem cell therapy, coupled with Brandts expertise in image-guided injections, has made joint rejuvenation an important part of his practice.

Dr. Kristin Comella: In 2013, Comella was named as one of the 25 most influential people in the stem cell field. She has more than 14 years of experience in regenerative medicine, training and education, research, product development and has served in a number of senior management positions with stem cell related companies. Comella has more than 12 years of cell culturing experience including building and managing the stem cell laboratory at Tulane Universitys Center for Gene Therapy. She has also developed stem cell therapies for osteoarthritis at Osiris Therapeutics. Comella has been a member of the Bioheart senior management team since 2004 and is currently serving as its chief scientific officer.

Dr. Stan Jones: Widely known for performing a ground-breaking stem cell infusion on Governor Rick Perry during a spinal surgery in 2011, Jones is a surgeon and stem cell expert. He received his bachelors degree from Texas Tech in Lubbock before earning his medical degree from the University of Texas Southwestern Medical School in Dallas. Jones continued his medical training at the University of Utah Medical School in Salt Lake City and a residency at the University of Texas Medical School at Houston. Jones was awarded a fellowship to study the lower back at Wellseley Hospital in Toronto, Canada. In addition, he served in the U.S. Army Medical Corp as a Captain. He is licensed to practice in the state of Texas and is certified by the American Board of Orthopedic Surgery.

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Learn about stem cell therapy and application at Vail event

Bone marrow stem cells could defeat drug-resistant …

By Stem Cell Treatment

Wed Jan 8, 2014 7:01pm EST

* Early study shows stem cell infusion can cure superbug TB

* Researchers say more research needed to test treatment

* Some 450,000 people worldwide have drug-resistant TB

By Kate Kelland

LONDON, Jan 9 (Reuters) - Patients with potentially fatal "superbug" forms of tuberculosis (TB) could in future be treated using stem cells taken from their own bone marrow, according to the results of an early-stage trial of the technique.

The finding, made by British and Swedish scientists, could pave the way for the development of a new treatment for the estimated 450,000 people worldwide who have multi drug-resistant (MDR) or extensively drug-resistant (XDR) TB.

In a study in The Lancet medical journal on Thursday, researchers said more than half of 30 drug-resistant TB patients treated with a transfusion of their own bone marrow stem cells were cured of the disease after six months.

"The results ... show that the current challenges and difficulties of treating MDR-TB are not insurmountable, and they bring a unique opportunity with a fresh solution to treat hundreds of thousands of people who die unnecessarily," said TB expert Alimuddin Zumla at University College London, who co-led the study.

TB, which infects the lungs and can spread from one person to another through coughing and sneezing, is often falsely thought of as a disease of the past.

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Doctors use stem cell therapy to treat lung diseases | wtsp.com

By Stem Cell Doctors

Tampa, Florida --It's the third leading cause of death in the U.S.You've probably even seen ads for treating COPD, but you may not even know what it is.

Chronic Obstructive Pulmonary Disease is a progressive lung disease likely caused by smoking, but air pollution can also be a factor. According to the American Lung Association, women are 37 percent more likely to have it than men and since there's no cure, people will do anything to breathe a little easier.

Doctors atthe Lung Institute in Tampa are using a lung patient's own stem cells to help treat COPD, emphysema and pulmonary fibrosis byrepairing damaged tissue. Like most patients seeking help, 70-year-old Daniel Odulio depends on an oxygen tank. He flew here all the way from The Philippines to improve his life.

The Lung Institute told 10 News the doctorsuse thelatest FDA-approved commercially available equipment for collecting and isolating stem cells using patients' own blood and adipose fat. They say theinnovative stem cell therapy won't be rejected because the doctors use the patients' own cells.In some cases, patients are able to get rid of their oxygen tanks altogether.

10 News

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Doctors use stem cell therapy to treat lung diseases | wtsp.com

The Stem Cell Center at Texas Heart Institute at St. Luke’s

By Stem Cell Medical Center

Welcome

The Stem Cell Center Texas Heart Institute is dedicated to the study of adult stem cells and their role in treating diseases of the heart and the circulatory system. Through numerous clinical and preclinical studies, we have come to realize the potential of stem cells to help patients suffering from cardiovascular disease.We are actively enrolling patients in studies using stem cells for the treatment of heart failure, heart attacks, and peripheral vascular disease.

Whether you are a patient looking for information regarding our research, or a doctor hoping to learn more about stem cell therapy, we welcome you to the Stem Cell Center. Please visit our Clinical Trials page for more information about our current trials.

Emerson C. Perin, MD, PhD, FACC Director, Clinical Research for Cardiovascular Medicine Medical Director, Stem Cell Center McNair Scholar

You may contact us at:

E-mail: stemcell@texasheart.org Toll free: 1-866-924-STEM (7836) Phone: 832-355-9405 Fax: 832-355-9440

We are a network of physicians, scientists, and support staff dedicatedto studying stem cell therapy for treating heart disease. Thegoals of the Network are to complete research studies that will potentially lead to more effective treatments for patients with cardiovasculardisease, and to share knowledge quickly with the healthcare community.

Websitein Spanish (En espaol)

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The Stem Cell Center at Texas Heart Institute at St. Luke's

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