Oct 17, 2020 (Japan Today) - A Japanese hospital said Thursday it has performed the world's first clinical trial of a transplant of visual cells derived from induced pluripotent stem cells, or iPS cells, to treat a patient with pigmentary retinal degeneration.
Kobe City Eye Hospital in the western Japan prefecture of Hyogo conducted the clinical trial on a patient with the disease, which can cause vision problems, including trouble seeing at night, due to a progressive loss of photoreceptor cells in the retina.
There are some 30,000 sufferers of the genetic disorder in Japan, and there is no known treatment.
Depending on how far the disease has progressed, a patient's vision may not improve significantly. Still, the research team aims to verify its safety on humans after it completed testing of the iPS cells on animals.
As gene mutations are believed to be the cause of pigmentary retinal degeneration, the team utilized iPS cells grown from the blood cells of a healthy donor rather than those of the patient.
The cells were cultured into three-dimensional retinal tissue using various substances, which was then made into a sheet containing photoreceptor cells and transplanted into the patient's retina.
Source: ANNnewsCH
