Reverse aging

A decade after Kyoto University biologist Shinya Yamanaka won a share of a Nobel Prize for discovering a cocktail of proteins that reprogram adult cells into versatile stem cells, two teams argue the proteins can turn back the clock for entire organisms—perhaps one day humans. One group at a biotech used gene therapy to deliver some of the so-called Yamanaka factors into old mice, and modestly extended their life span. And a separate team followed a similar strategy to reverse aging-like changes in genetically engineered mice.

https://www.science.org/content/article/two-research-teams-reverse-signs-aging-mice

I noticed something in the article worth mentioning. The genes used to rejuvenate old mice are the same ones that are well-established cancer-causing genes.