4.6 Article

IgG4 antibodies and cancer-associated inflammation Insights into a novel mechanism of immune escape

Journal

ONCOIMMUNOLOGY
Volume 2, Issue 7, Pages -

Publisher

TAYLOR & FRANCIS INC
DOI: 10.4161/onci.24889

Keywords

B cells; FcRI; IL-10; IgG4; VEGF; antibody effector functions; cancer inflammation; immune escape; melanoma

Funding

  1. National Institute for Health Research (NIHR) Biomedical Research Centre based at Guy's and St Thomas' NHS Foundation Trust
  2. King's College London
  3. Cancer Research UK [C30122/A11527, C16736/A8371]
  4. Mary Dunhill Trust
  5. CR UK//NIHR in England/DoH for Scotland, Wales and Northern Ireland Experimental Cancer Medicine Centre
  6. CR UK/EPSRC/MRC/NIHR KCL/UCL Comprehensive Cancer Imaging Centre [C1519/A10331]
  7. Overseas Research Students Award Scheme
  8. Medical Research Council [MR/J006742/1] Funding Source: researchfish

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The role of B cells and antibodies in cancer is insufficiently understood but is receiving increasing attention. We have recently identified IgG4 as an antibody subclass elicited by melanoma-associated interleukin-10-driven inflammation. In this setting, IgG4 exhibit inefficient immunostimulatory capacity and block the cytotoxic activities of other antibodies. These previously unappreciated mechanisms of immune escape may constitute promising targets for the development of novel anticancer immunotherapies.

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