Cord Blood May Help Kids With Diabetes
Study Shows Kids' Own Banked Cord Blood Slows Type 1 Diabetes
June 25, 2007 (Chicago) -- Infusions of cord blood infusions seem to help kids with type 1 diabetes -- apparently by partially reversing the misguided immune system attack that is the keystone of the disease.
The experimental treatment is being tested by University of Florida researchers Desmond A. Schatz, MD, medical director of the University of Florida diabetes center, and Michael J. Haller, MD, assistant professor of pediatric endocrinology.
So far, they've treated 11 kids ranging in age from 2 1/2 to 10 years. They reported the six-month results from the first eight of these kids at the American Diabetes Association's 67th Annual Scientific Sessions, held June 22-26 in Chicago.
"This approach is outside the box," Schatz said at a news conference. "It is the first cellular therapy where we are using the patient's own cells -- cells that are naive to the environmental insult that may trigger the disease."
Schatz and Haller compared the results of cord-blood treatment to results for 18 kids who received current state-of-the-art treatment for their type 1 diabetes. Children who got cord blood showed signs of reduced immune damage.
Most importantly, the cord-blood treatment seems to have slowed the loss of insulin-making pancreatic beta cells -- a process Schatz calls "pancreatic suicide."
"Kids who used cord blood had half of the insulin requirement of kids getting standard therapy," Haller said at the news conference. "This implies that kids who got cord blood made some insulin on their own."
Cord Blood Not a Type 1 Diabetes Cure
It's not a cure. Both Schatz and Haller expect that these children eventually will lose the ability to make insulin as their disease progresses. But they stress that the extra insulin-making time the kids gained will have lasting benefit.
How does it work? That's not yet clear. Stem cells from cord blood may well be traveling to the pancreas, where they might help regenerate the insulin-making cells of the pancreas.
Schatz and Haller favor the theory that the stem cells contain what researchers call regulatory T cells -- the quarterbacks of the immune system. The new cells, they suggest, try to halt out-of-control, anti-self immune responses.