“Latest Stem Cells News”

Howard Hughes Medical Institute (HHMI) scientists have discovered that endothelial cells, the building blocks of the vascular system, keep blood stem cells dividing healthily in a lab dish much longer and more effectively than previous methods of growing the cells. The new advance dramatically improves scientists’ ability to manufacture large quantities of authentic adult blood stem cells, which may help revolutionize the field of bone marrow transplantation.

Shahin Rafii, an HHMI investigator at Weill Cornell Medical College in New York City, and his colleagues report on the development of an endothelial cell platform that supports self-renewal of the blood stem cells, known as long-term hematopoietic stem cells (LT-HSCs), in the March 2010 issue of the journal Cell Stem Cell. Their study also describes a novel mechanism by which endothelial cells support propagation of LT-HSCs in adult mice.

Health Counselor Board, Javier Alvarez Guisasola, launched on Wednesday a clinical trial coordinated by Professor Margarita Calonge, IOBA’s on cell therapy applied to treat corneal blindness.
This study was coordinated by the IOBA and IBGM to demonstrate the long-term effectiveness of the epithelial stem cell transplantation of the cornea, previously cultivated to restore corneal blindness. Stem cells come from a healthy eye of the patient or family support.

Transplanting own stem cells into heart of severe angina patients lessens their pain and improves their ability to walk, a new study has revealed.

The largest national stem cell study for heart disease showed that transplant subjects also experienced fewer deaths than those who didn’t receive stem cells.

In the 12-month Phase II, double-blind trial, subjects’ own purified stem cells, called CD34+ cells, were injected into their hearts in an effort to spur the growth of small blood vessels that make up the microcirculation of the heart muscle (…)

He also said that this study provides the first evidence that a person’s own stem cells can be used as a treatment for their heart disease. However, he cautioned that the findings of the 25-site trial with 167 subjects, require verification in a larger, Phase III study.

The stem cell transplant is the first therapy to produce an improvement in severe angina subjects’ ability to walk on a treadmill. Twelve months after the procedure, the transplant subjects were able to double their improvement on a treadmill compared to the placebo group (…)

from http://timesofindia.indiatimes.com/life/health-fitness/health/Your-own-stem-cells-can-help-treat-heart-disease/articleshow/5242519.cms

(…) Participation in this drive and thus registration with the National Marrow Donor Program consists of simple swabs of the cheeks using Q-tips for a DNA test. DNA information is entered into this lifesaving donor program database. If a potential donor is identified as a potential match for David or someone else in need, he/she will be contacted by the donor program to have a small amount of blood drawn for lab testing.

If that person is then confirmed as a match, he/she will be asked to provide stem cells through a simple donation procedure where blood is taken from one arm through a needle and run through a machine, which separates the stem cells from the blood, and returned into the other arm.

Myelodysplastic Syndromes (MDS) are a group of diseases that affect the bone marrow and blood. Some types of MDS are mild and easily managed, which other types are severe and life-threatening. Mild MDS can grow more severe over time. It can develop into a fast-growing, severe leukemia called acute myelogenous leukemia. Stem cell transplant is the only treatment that can cure MDS.

In this treatment, the patient receives high-dose chemotherapy and/or total body irradiation to kill the cells in the bone marrow (including the abnormal bone marrow cells). The patient would then receive new functioning blood-forming stem cells harvested from the donor (…)

from http://www.nj.com/warrenreporter/index.ssf/2009/11/centenary_college_to_hold_stem.html

A breakthrough was achieved recently in the case of an 18 year old boy, a case of advanced stage of Aplastic anemia where stem cells of not one but three donors were used to treat him. This spectacular feat was achieved by the doctors at The Netaji Subhash Chandra Bose Cancer Research Institute (NSCBCRI) Kolkata.

18 year old Aman, student of class 12, fainted in school. He was diagnosed for Aplastic Anemia, a disorder where the bone marrow stops producing red blood cells and platelets. He was treated in many hospitals, but no amount of blood transfusions or ‘immuno-suppressant’ medication could help.

Dejected and depressed, Aman’s parents had almost lost their son when they happened to read a news report by chance. The doctors at NSCBCRI had successfully conducted an SCT to treat Aplastic anemia. . “I wanted to live on, and my parents saw a ray of hope, ”said Aman.
With recent advances in medicine the use of stem cells have been very effective in treating Diabetes milletus, Parkinson’s diseases, cancer, leukemia and Aplastic anemia .

They have been very effective in Bone marrow transplantation
Aman was rushed to Kolkata, but by then his condition had deteriorated. The doctors realized that only a multiple- unit SCT could save him. Overruling the risks they conducted the transplant which took three days.

With 50% chances of risk involved in a single unit SCT, the doctors had a bigger risk at hand, but a similar case conducted successfully in Seattle gave them the courage.
Today Aman Khandelwal is recouping. Thanks to the courage, confidence and competence of the doctors who treated upon him.

from http://www.beviga.com/1401/stem-cell-transplant-a-miracle/

“For centuries, scientists have known that certain animals can regenerate missing parts of their bodies. Humans actually share this ability with animals like the starfish and the newt. Although we can’t replace a missing leg or a finger, our bodies are constantly regenerating blood, skin, and other tissues.

The identity of the powerful cells that allow us to regenerate some tissues was first revealed when experiments with bone marrow in the 1950s established the existence of stem cells in our bodies and led to the development of bone marrow transplantation, a therapy now widely used in medicine.

This discovery raised hope in the medical potential of regeneration. For the first time in history, it became possible for physicians to regenerate a damaged tissue with a new supply of healthy cells by drawing on the unique ability of stem cells to create many of the body’s specialized cell types (…)”

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