Firefly protein lights up degenerating muscles, aiding muscular-dystrophy research, scientists show
BY BRUCE GOLDMAN
Stanford University School of Medicine scientists have created a mouse model of muscular dystrophy in which degenerating muscle tissue gives off visible light.
The observed luminescence occurs only in damaged muscle tissue and in direct proportion to cumulative damage sustained in that tissue, permitting precise monitoring of the disease’s progress in the mice, the researchers say.
While this technique cannot be used in humans, it paves the way to quicker, cheaper and more accurate assessment of the efficacy of therapeutic drugs. The new mouse strain is already being employed to test stem cell and gene therapy approaches for muscular dystrophies, as well as drug candidates now in clinical trials, said Thomas Rando, MD, PhD, professor of neurology and neurological sciences and director of Stanford’s Glenn Laboratories for the Biology of Aging.