I think, in only a few words, you extract the prec
Post# of 153780
Quote:
MSI tumors are more often hot because the mismatch repair of DNA will signal to the immune system to destroy tumor cells.
It might not be the signaling to the tumor cell per se, but rather, the actual attack of, or the actual destruction of the tumor cells which induces the upregulation of PD-L1 on their cell surface.
If it had to do with signaling, then LL might have another MOA, but I tend to think that it is the actual attack and subsequent destruction which is actually the cause of the upregulation.
Regardless, this tendency for LL to induce this upregulation of PD-L1 is profound and proof positive it has yet another anti-tumor effect which can not be denied.

