This Breakthrough In DNA Editing Could Help Cure Diseases
A lot of the promise of gene-editing methods couldn't really help you before. Now it can.By Evan Thomas | November 16, 2016
Gene therapy is a breakthrough that's seemed just out of reach for decades. It's based on the idea that, if you could just swap out a faulty gene for a healthy one in someone's cells, you could cure all kinds of diseases that are gene-related, like Alzheimer's.
But our best tools still only change genes one cell at a time, so the fastest way to get a lot of modified cells is to let them divide and grow on their own. This means cells that have already grown into fully formed organs are harder to treat.