Reading your post, I realize that I don't know what you mean, but the first thing that came to my mind it's that it's possible to bioengineer a new organ, a virus filter (or blocker) that it's atatched to a vein.
It's anybody working at this? Sinthetic new function organs, blocking new virus, or toxic molecules (plastics, pesticides, etc..) that can be grown outside the body and implanted to work as a natural organ. Residues could be excreted in an encapsulated way through the intestine.
I'm no expert, but I assumed that HIV meds damage the kidneys, making treatment a balancing act of too aggressive treatment killing the kidneys vs not addressive enough allowing the virus to do its damage.
Being able to grow a replacement kidney would allow more aggressive treatments. I think this would be true of many diseases, though, not just HIV.
I know my mother-in-law has to live with the knowledge that the meds she takes to manage her bipolar disorder may eventually be what kills her, due to kidney disease.
EDIT: I said kidney because the first couple comments referenced kidneys. Could apply to other organs. The basic idea is that meds often damage organs as a side effect, so being able to replace the organ opens up more possibilities for aggressive treatments.
