Scientists discover gene responsible for rare, inherited eye disease

Thursday, September 26, 2024

NIH-supported findings pave the way for genetic testing, clinical trials, and therapy development

Scientists at the National Institutes of Health (NIH) and their colleagues have identified a gene responsible for some inherited retinal diseases (IRDs), which are a group of disorders that damage the eye’s light-sensing retina and threatens vision. Though IRDs affect more than 2 million people worldwide, each individual disease is rare, complicating efforts to identify enough people to study and conduct clinical trials to develop treatment. The study’s findings published today in JAMA Ophthalmology.

In a small study of six unrelated participants, researchers linked the gene UBAP1L to different forms of retinal dystrophies, with issues affecting the macula, the part of the eye used for central vision such as for reading (maculopathy), issues affecting the cone cells that enable color vision (cone dystrophy) or a disorder that also affects the rod cells that enable night vision (cone-rod dystrophy). The patients had symptoms of retinal dystrophy starting in early adulthood, progressing to severe vision loss by late adulthood.

“The patients in this study showed symptoms and features similar to other IRDs, but the cause of their condition was uncertain,” said Bin Guan, Ph.D., chief of the Ophthalmic Genomics Laboratory at NIH’s National Eye Institute (NEI) and a senior author of the report. “Now that we’ve identified the causative gene, we can study how the gene defect causes disease and, hopefully, develop treatment.”

*Ophthalmic images from the study probands exhibit variable forms of retinal dystrophy.*