Why Don't Immune Checkpoint Inhibitors Work in Colorectal Cancer?

Shi Yuequan¹, Zou Zifang¹ and David Kerr^2*

¹Clinical college, China Medical University, Liaoning, China

²Radcliffe Department of Medicine, University of Oxford, United Kingdom

^*Corresponding Author: David Kerr, Radcliffe Department of Medicine, University of Oxford, United Kingdom, Tel: 00447976708535 Email:

Keywords: Immune checkpoint blockade; Colorectal cancer; PDI

Introduction