Douglas A. Melton
Scientists have created stem cells from patients suffering from 10 incurable diseases, from Down syndrome to diabetes and Parkinson’s – immortal cells that might one day be turned into repair material for wasting muscles or damaged brains.
The Harvard University-led team has taken skin and bone marrow cells from diseased patients and re-programmed those cells to behave like cells from days-old embryos.
The feat allows scientists for the first time to watch muscular dystrophy and other diseases unfold in a petri dish, “that is, to watch what goes right or wrong,” said Doug Melton, co-director of the Harvard
Muscle wasting linked to old age might one day be treated using stem cells, claim US scientists.
A University of Colorado team transplanted cells into mice and saw the muscle more than double in size – staying that way even into old age.
They say their work, reported in Science Translational Medicine, may have promise in treating muscle-wasting conditions such as muscular dystrophy.
A UK expert said producing a human treatment might be difficult.
Stem cells are cells found in the body which can divide and become a variety of different types of tissue.
Scientists believe they could potentially help treat a large number
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Scientists at the Ottawa Hospital Research Institute (OHRI) and the University of Ottawa have discovered a powerful new way to stimulate muscle regeneration, paving the way for new treatments for debilitating conditions such as muscular dystrophy.
The research, to be published in the June 5 issue of Cell Stem Cell, shows for the first time that a protein called Wnt7a increases the number of stem cells in muscle tissue, leading to accelerated growth and repair of skeletal muscle.
“This discovery shows us that by targeting stem cells to boost their numbers, we can improve the body’s ability to repair
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In a genetic engineering breakthrough that could help everyone from bed-ridden patients to elite athletes, a team of American researchers—including 2007 Nobel Prize winner Mario R. Capecchi—have created a “switch” that allows mutations or light signals to be turned on in muscle stem cells to monitor muscle regeneration in a living mammal. For humans, this work could lead to a genetic switch, or drug, that allows people to grow new muscle cells to replace those that are damaged, worn out, or not working for other reasons (e.g., muscular dystrophy). In addition, this same discovery also gives researchers
When a muscle is damaged, dormant adult stem cells called satellite cells are signaled to “wake up” and contribute to repairing the muscle. University of Missouri researchers recently found how even distant satellite cells could help with the repair, and are now learning how the stem cells travel within the tissue. This knowledge could ultimately help doctors more effectively treat muscle disorders such as muscular dystrophy, in which the muscle is easily damaged and the patient’s satellite cells have lost the ability to repair.
“When your muscles are injured, they send out a ‘mayday’ for satellite cells to come and