BETA - What are TCRT cell receptors?

What is a T cell receptor? T cell receptors are proteins or markers which are found on the surface of a T cell. So the role of a T cell is to survey the body and look for abnormal cells. Typically these are infections but they can also represent cancers. These proteins or receptors which are found on the surface of a T cell can recognise these abnormal cells. And then if a second receptor is stimulated then this T cell will be activated to kill that abnormal cell. So it's a vital component of the immune surveillance. Regarding TCR T cells, TCR is a receptor on the T cell itself. When we produce CAR T cells we use a chimeric T cell receptor. It means we change the receptor on the T cell so it can recognise plasma cells. It's more of a technical term rather than a type of cells that is different than the CAR T. So with the CAR T we put a different receptor on the T cell that is originally not supposed to be on the T cell. We put it in there through gene insertion through a virus and then this receptor will recognise plasma cells and go after plasma cells, for example in multiple myeloma. The TCR is the T cell receptor. It's a technical term for the receptor that is originally on the T cell. So TCR is not a type of cells. It's the original receptor on the T cell. And yes that's what we replace or that's what we add to it for the T cells to recognise plasma cells. So it's not a type of cell. It's a hand on the T cell that recognises with it different viruses, cancers. And with the chimeric T cell we put another hand, a completely different hand that can recognise plasma cells.