FIGURE 1.
Regulation of PD-1/PD-L1 expression by several pathways. The figure were adapted and reproduced from reference (Wang et al., 2018b) under the Creative Commons Attribution License (CCBY).
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.