Worth noting that they were able to treat osteoarthritis in mice using transplanted mammalian cells engineered to photosynthesize. They also posit that this can

Worth noting that they were able to treat osteoarthritis in mice using transplanted mammalian cells engineered to photosynthesize. They also posit that this can be used to treat common degenerative diseases in humans by enhancing cell anabolism (the process by which cells utilize energy to build molecules and other things like proteins and lipids from smaller molecules). Though still much work to be done there.