[Expression and Significance of PD-1/PD-L1 in MDS Blast Cells, T Lymphocyte Cell Subsets and Treg Cells].

The high expression of PD-1/PD-L1, dominance of Treg (IL-10、TGF-β) and Th2-related cytokines and inhibition of effector T lymphocyte cells in patients with MDS is conducive to tumor cell proliferation and immune escape, which may promote the progression of MDS disease.