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Home NEWS Science News Health

New insight into eye diseases

Bioengineer by Bioengineer
September 28, 2016
in Health
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Many diseases that lead to blindness, such as glaucoma and macular degeneration, are caused by the death of certain cells in the human retina that lack the ability to regenerate. But in species such as zebrafish these cells, known as Muller glial cells (MGs), do serve as retinal stem cells that are capable of generating new cells.

This image shows how transferred genes activate the stem cell properties of normally dormant retinal cells. Credit: Image courtesy of Yale University
This image shows how transferred genes activate the stem cell properties of normally dormant retinal cells.
Credit: Image courtesy of Yale University

In a new study, a research team led by Associate Professor of Ophthalmology Bo Chen investigated whether the regenerative power of cells in zebrafish could be recreated in mammals, specifically mice.

The research team transferred genes into MGs to activate the stem cell properties of these normally dormant cells, causing them to reproduce and make other types of retinal cells.

The strategy could be developed into a therapeutic tool, Chen said. “In the future we are hoping to manipulate these cells to replenish any lost retinal neurons, either in diseased or physically damaged retinas,” he noted. “Potentially, it’s a therapy to treat many different retinal degenerative diseases.”

Read more about the study, published in Cell Reports.

Story Source: Yale University. Original written by Ziba Kashef.

Journal Reference:

Kai Yao, Suo Qiu, Lin Tian, William D. Snider, John G. Flannery, David V. Schaffer, Bo Chen. Wnt Regulates Proliferation and Neurogenic Potential of Müller Glial Cells via a Lin28/let-7 miRNA-Dependent Pathway in Adult Mammalian Retinas. Cell Reports, 2016; 17 (1): 165 DOI: 10.1016/j.celrep.2016.08.078

The post New insight into eye diseases appeared first on Scienmag.

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