A new imaging technique used by a group of researchers at the University of Washington and elsewhere has revealed a previously unknown cellular structure in the retinas of mice. The structure is the site for an important part of the retinoid cycle, a chemical process critical to vision, the scientists said. Results of their study, which took more than three years, appeared in the Feb. 2 issue of the Journal of Cell Biology.
Dubbed a retinosome, the newly discovered organelle houses retinyl esters, which are an intermediate chemical product in the retinoid cycle. That cycle is critical in the regeneration process for 11-cis-retinal, a light-absorbing chemical vital to vision.
Dr. Yoshikazu Imanishi, senior research fellow in the UW Department of Ophthalmology, worked on the project with Dr. Kris Palczewski, Bishop Professor and professor of ophthalmology, chemistry, and pharmacology at the UW; Matthew Batten, a research scientist in Palczewskis lab; and researchers from Vanderbilt University and the University of Utah.
Justin Reedy | EurekAlert!
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