Key points from article :
Protein boosts blood stem cells, making them behave like those of younger people.
Source of red and white blood cells is “mother” stem cells in bone marrow – the number of which declines with age.
Old stem cells mixed with osteopontin, and a protein that activates it, began to produce white blood cells just as young stem cells do.
It should boost the immune system of elderly people.
The study was published in The EMBO Journal.
