Cloning And Stem Cell News, Research and Resources - February 2009 Archives
Same study uncovers how each tooth signals the next to start growing
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Research in the FASEB Journal clears major hurdles for bioengineered replacement organs
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Discovery demonstrates the feasibility of using iPS-derived motor neurons to model and treat diseases
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Potential new source of motor neurons that does not require human eggs or embryos could be an enormous boon to research
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 | A Johns Hopkins engineer is trying to coax human stem cells to turn into networks of new blood vessels that could someday be used to replace damaged tissue in people with heart disease, diabetes and other illnesses. ...> Full Article |
First study of its kind to use bone marrow stem cells to help repair the brain after stroke
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An unrelated cord blood transplant, even from a mismatched donor, can be effective in treating children with a host of life-threatening diseases and disorders including cancer, sickle cell anemia, and other genetic diseases, according to researchers in the Duke Pediatric Blood and Marrow Transplantation Program. Unrelated cord blood may be easier to obtain than adult bone marrow, allowing for the treatment of more patients.
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Interferon-alpha, a messenger substance of the immune system, awakens dormant hematopoietic stem cells in the bone marrow to become active, thus making them vulnerable for the effect of many drugs. This finding was published in Nature by researchers from the German Cancer Research Center jointly with colleagues from Lausanne. The researchers suppose that this might also be a way to stimulate tumor stem cells to divide and, thus, sensitize them to anticancer drugs.
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In a first of its kind discovery, University of Minnesota researchers have identified the "master gene" behind blood vessel development.
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Research using a mouse model of human leukemia has provided critical insight into the genetic factors related to the generation and maintenance of myeloid leukemia stem cells. The study, published by Cell Press in the Feb. 6 issue of the journal Cell Stem Cell, is likely to have a profound impact on the future design of therapeutic approaches targeted against cancer stem cells.
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Stem cells of any kind are defined by their eternal nature, reproducing themselves and providing a pool of cells from which more differentiated tissues arise. Now a group of researchers from Baylor College of Medicine in collaboration with researchers in Australia and the United Kingdom, demonstrate that two specific "sister" genes that control transcription play often overlapping roles in maintaining this pool of hematopoietic or blood cell-forming stem cells.
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A Netherlands-based research team has successfully engineered a full-thickness gum tissue substitute from patient-donated biopsied tissue for use in reconstructing the oral cavity following surgery or trauma. Patient self-donated tissue was cultured and expanded in vitro for three weeks before transplantation. The advancement is a significant improvement over other skin substitutes as results demonstrate the importance of matching the donor site with the area to be transplanted.
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The state today tentatively approved $3.3 million over three years to enhance UC Irvine's stem cell training program, which teaches tomorrow's experts the techniques, ethics and clinical knowledge critical to this fast-growing field.
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 | Scientists at the Universities of Bath and Leeds have discovered a chemical that stops stem cells from turning into other cell types, allowing researchers to use these cells to develop new medical treatments more easily. ...> Full Article |
A new study of myelin, a protein key to efficient neuronal transmission, reveals that a microRNA signal fine-tunes myelination.
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The Georgia Stem Cell Initiative, a partnership of academia, industry and public officials to advance stem cell research in the state and educate the public about its impact, will meet Feb. 10 on the campus of the Medical College of Georgia.
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Since the cloning of Dolly the Sheep over a decade ago, somatic cell nuclear transfer has been considered a promising way to generate human, patient-specific stem cells for therapeutic applications. The shortage of human donor eggs has led to efforts to substitute animal oocytes.
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Fish can recognize a face based on UV pattern alone
Ancient DNA from rare fossil reveals that polar bears evolved recently and adapted quickly
'Anaconda' meets 'Jurassic Park': Study shows ancient snakes ate dinosaur babies
Scientists locate apparent hydrothermal vents off Antarctica
Mars Express heading for closest flyby of Phobos
Artificial bee silk a big step closer to reality
Artificial foot recycles energy for easier walking
New fiber nanogenerators could lead to electric clothing
What drives our genes? Researchers map the first complete human epigenome
Juggling enhances connections in the brain
Tracking down the human 'odorprint'
Fill 'er up - with algae
Scientists discover quantum fingerprints of chaos
Researchers help identify cows that gain more while eating less
Mathematical innovation turns blood draw into information gold mine in Stanford study
Deceptive model
Predicting the fate of stem cells
Using own skin cells to repair hearts on horizon
Stem cells restore sight in mouse model of retinitis pigmentosa
The mouse with a human liver: A new model for the treatment of liver disease
Unpacking condensins' function in embryonic stem cells