Last year, cell biologist Deng Hongkui and his team at Peking University in Beijing took cells from a woman with type 1 diabetes, reprogrammed them into blood sugar-regulating cell clusters and injected them back into her abdomen.
The procedure was a world first—no other type 1 diabetes patient had been treated with their own cells. Two and a half months later, the young woman started producing enough of her own insulin to not need injections of the hormone anymore. Now, more than a year has passed since the treatment, and in another world first, her ability to produce insulin has remained stable. The results of the trial were recently published in the journal Cell.