Role of Tumor-Mediated Dendritic Cell Tolerization in Immune Evasion.

Journal Article (Journal Article;Review)

The vast majority of cancer-related deaths are due to metastasis, a process that requires evasion of the host immune system. In addition, a significant percentage of cancer patients do not benefit from our current immunotherapy arsenal due to either primary or secondary immunotherapy resistance. Importantly, select subsets of dendritic cells (DCs) have been shown to be indispensable for generating responses to checkpoint inhibitor immunotherapy. These observations are consistent with the critical role of DCs in antigen cross-presentation and the generation of effective anti-tumor immunity. Therefore, the evolution of efficient tumor-extrinsic mechanisms to modulate DCs is expected to be a potent strategy to escape immunosurveillance and various immunotherapy strategies. Despite this critical role, little is known regarding the methods by which cancers subvert DC function. Herein, we focus on those select mechanisms utilized by developing cancers to co-opt and tolerize local DC populations. We discuss the reported mechanisms utilized by cancers to induce DC tolerization in the tumor microenvironment, describing various parallels between the evolution of these mechanisms and the process of mesenchymal transformation involved in tumorigenesis and metastasis, and we highlight strategies to reverse these mechanisms in order to enhance the efficacy of the currently available checkpoint inhibitor immunotherapies.

Full Text

Duke Authors

Cited Authors

  • DeVito, NC; Plebanek, MP; Theivanthiran, B; Hanks, BA

Published Date

  • 2019

Published In

Volume / Issue

  • 10 /

Start / End Page

  • 2876 -

PubMed ID

  • 31921140

Pubmed Central ID

  • PMC6914818

Electronic International Standard Serial Number (EISSN)

  • 1664-3224

Digital Object Identifier (DOI)

  • 10.3389/fimmu.2019.02876


  • eng

Conference Location

  • Switzerland