Here was a recent article about a discovery showing signaling between the cell nucleus and the mitochondria affects aging.
In my graphic novel, “Maximum Lifespan”, the mad scientist clones himself into two sons with the hopes of one day transferring his consciousness into them like a download.
The first son was genetically enhanced but the experiment backfired, leading to rapid aging:
But the second son is given a fraction of non-human mitochondria so that the cell nucleus to mitochondrial signaling is disrupted and the cells don’t undergo their suicide programs as effectively. The result is a transhuman, immortal son.
You can purchase my graphic novel here: http://www.maximumlifespancomic.com/story