Is there a way to transfer a good living white cell into a dying one in order to rejuvenate it?

Question: Is there a way to transfer a good living white cell into a dying one in order to rejuvenate it?
- Keywords:
  cell,
  immune system,
  white blood cell
Asked by rayat to Jason on 13 Mar 2013.
- Jason King answered on 13 Mar 2013:
  
  Sadly there is not, however white blood cells are being continuously made in the bone marrow (the soft bit in the middle of bones). There are lots of different types of white blood cells, with different jobs, such as recognising infection, and killing bacteria, and they live for different lengths of time, from a few days to many years. So they are constantly dying and getting replaced. When a cell is already dying, it is pretty much impossible to rejuvenate it, all we can really do is try to stop it getting sick in the first place, or wait for it to be replaced with a fresh one.

Question: Is there a way to transfer a good living white cell into a dying one in order to rejuvenate it?