Dok-3 deficient mice display different immune clustering and Tim-3 expression

Eur J Med Res. 2019 Jul 27;24(1):26. doi: 10.1186/s40001-019-0384-7.

Abstract

Background: Dok-3 has been shown to play an important role in immune system. Tim-3 also has been recognized as an important immune regulator which involves in many diseases. The relationship of them is still unclear.

Methods: We detected the expression of Tim-3 on spleen immune cells from Dok-3 deficient mice and control mice by flow cytometry.

Results: In this article, we found that Dok-3-/- mice display almost entirely different immune clustering characteristics compared with wild type 129 mice. The CD4 T cells and CD8 T cells decreased and DC cells, macrophages, MDSCs increased when the Dok-3 gene knocked-out. The Tim-3 expression on CD4 T cells, CD8 T cells, NK cells, DC cells increased when the Dok-3 gene knocked-out. The macrophages and MDSCs just display the opposite results.

Conclusions: Although Dok-3-/- mice display different immune clustering and Tim-3 expression, the mechanism still needs further study.

Keywords: Dok-3; Immune cells proportion; Tim-3.

MeSH terms

  • Adaptor Proteins, Signal Transducing / deficiency*
  • Adaptor Proteins, Signal Transducing / metabolism
  • Animals
  • CD4-Positive T-Lymphocytes / immunology
  • CD8-Positive T-Lymphocytes / immunology
  • Dendritic Cells / metabolism
  • Hepatitis A Virus Cellular Receptor 2 / metabolism*
  • Killer Cells, Natural / metabolism
  • Macrophages / metabolism
  • Mice
  • Myeloid-Derived Suppressor Cells / metabolism

Substances

  • Adaptor Proteins, Signal Transducing
  • Dok3 protein, mouse
  • Havcr2 protein, mouse
  • Hepatitis A Virus Cellular Receptor 2