Revolutionary stem cell therapy

Ian Sample in The Guardian:

ScreenHunter_12 Jan. 13 09.40 A groundbreaking medical treatment that could dramatically enhance the body's ability to repair itself has been developed by a team of British researchers.

The therapy, which makes the body release a flood of stem cells into the bloodstream, is designed to heal serious tissue damage caused by heart attacks and even repair broken bones. It is expected to enter animal trials later this year and if successful will mark a major step towards the ultimate goal of using patients' own stem cells to regenerate damaged and diseased organs.

When the body is injured, bone marrow releases stem cells that home in on the damaged area. When they arrive, they start to grow into new tissues, such as heart cells, blood vessels, bone and cartilage.

Scientists already know how to make bone marrow release a type of stem cell that can only make fresh blood cells. The technique is used to collect cells from bone marrow donors to treat people with the blood cancer leukaemia.

Now a team led by Sara Rankin at Imperial College London has discovered a way to stimulate bone marrow to release two other types of stem cell, which between them can repair bone, blood vessels and cartilage. Giving mice a drug called mozobil and a naturally occuring growth factor called VEGF boosted stem cell counts in their bloodstream more than 100-fold.

More here.

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