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

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.

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