Diseased Retinal Cells are Treated with Gene Therapy (image) Columbia University Medical Center Share Print E-Mail Caption In normal, or wild-type, retinal cells (left), the protein actin forms the cell's cytoskeleton, creating an internal support structure that looks like a series of connected hexagons. In cells with MFRP mutations (center), this structure fails to form, compromising cellular function. When diseased retinal cells are treated with gene therapy to insert normal copies of MFRP (right), the cell's cytoskeleton and function are restored. Credit Lab of Stephen H. Tsang, M.D., Ph.D./Columbia University Medical Center. Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.