Why does our body reject other people’s donated organs and require immunosuppressants to be taken but getting someone else’s blood is ok?
In: 157
Getting someone else‘s blood can cause an immune reaction.
Of course im gonna have to oversimplify, the immune system is quite a complex thing.
Your immune system has a pretty big stockpile of different antibodies for different diseases. Whenever a cell from your immune system bumps into another cell it checks if it‘s something your body has antibodies for.
Blood can have a lot of different surfaces, and you can classify it by that. If the surface of your own blood and the donated blood is similar your immune system can‘t tell the difference. If you receive blood from a non-matching group your immune system will react and kill the donated red blood cells.
With organs you have a shit ton of different surface molecules and a whole lot of different cells. You simply cannot find a donor organ where each cell appears to the immune system as the bodies own cells. You can‘t group organs like you can with blood because they are far more complex.
Latest Answers