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Research supports promise of cell therapy for bowel disease
Date:2/27/2013

ne has one of the highest cellular turnover rates in the body, with all cell types being renewed weekly from this pool of cells, located in an area of the intestine known as the crypt.

In the current study, the team used cell markers to identify a population of stem cells in human bone marrow with the highest potential to migrate to the intestine and thrive. The cells express high levels of a receptor (ephrin type B) that is involved in tissue repair and wound closure.

The cells also known to modulate inflammation were injected into fetal sheep at 55 to 62 days gestation. At 75 days post-gestation, the researchers found that most of the transplanted cells were positioned in the crypt area, replenishing the stem cells in the intestine.

"Previous studies in animals have shown that the transplantation of bone-marrow-derived cells can contribute to the regeneration of the gastrointestinal tract in IBD," said Almeida-Porada. "However, only small numbers of cells were successfully transplanted using this method. Our goal with the current study was to identify populations of cells that naturally migrate to the intestine and have the intrinsic ability to restore tissue health."

Almeida-Porada said that while the two studies show that the cells can migrate to and survive in a healthy intestine, the next step will be to determine whether they can survive in an inflamed intestine.


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Contact: Karen Richardson
krchrdsn@wakehealth.edu
336-716-4453
Wake Forest Baptist Medical Center
Source:Eurekalert

Page: 1 2

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