The PD-1-PD-L pathway also plays a key role in chronic infections as well as in the suppressive tumor microenvironment [20] by contributing directly to T-cell exhaustion and lack of immune response [21]
The PD-1-PD-L pathway also plays a key role in chronic infections as well as in the suppressive tumor microenvironment [20] by contributing directly to T-cell exhaustion and lack of immune…