MYC regulates the antitumor immune response through CD47 and PD-L1
Stanford University · University of Würzburg · +2 more institutions
Abstract
The MYC oncogene codes for a transcription factor that is overexpressed in many human cancers. Here we show that MYC regulates the expression of two immune checkpoint proteins on the tumor cell surface: the innate immune regulator CD47 (cluster of differentiation 47) and the adaptive immune checkpoint PD-L1 (programmed death-ligand 1). Suppression of MYC in mouse tumors and human tumor cells caused a reduction in the levels of CD47 and PD-L1 messenger RNA and protein. MYC was found to bind directly to the promoters of the Cd47 and Pd-l1 genes. MYC inactivation in mouse tumors down-regulated CD47 and PD-L1 expression and enhanced the antitumor immune response. In contrast, when MYC was inactivated in tumors…
Citation impact
- FWCI
- 54.80
- Percentile
- 100%
- References
- 54
Authors
11Topics & keywords
- Immune system
- Biology
- Oncogene
- CD47
- Immune checkpoint
- Cancer research
- Transcription factor
- Carcinogenesis
- Good health and well-being
Funding
- ALAlex's Lemonade Stand Foundation for Childhood Cancer
- CDCalifornia Department of Fish and GameAward: GU 1046/2-1
- DFDeutsche ForschungsgemeinschaftAward: Ei222/12-1
- DKDeutsche Krebshilfe
- NINational Institutes of HealthAwards: U01 CA 188383, CA 184384, CA 089305, CA 170378, U01 CA 114747, 1F32CA177139, 5T32AI07290