Los Angeles Times

When it comes to disease, stem cells are a game-changer, scientists say. This is why

LOS ANGELES - Thousands of the world's leading stem cell researchers are convening in Los Angeles this week to discuss the prospects for a future without human disease.

Stem cells could play a key role. These cells are remarkably flexible; under the right conditions, they can be coaxed to develop into many other types of cells in the body.

Researchers are learning how to harness their natural potential to create whatever type of cell is in demand - perhaps retinal pigment epithelium cells to restore vision to patients blinded by "dry" macular degeneration, or oligodendrocyte progenitor cells that might protect nerve cells that

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