CHEN MZ,YANG H,WANG CH,et al.Expression and signifi-cance of PECAM1 in cancer tissuesofelderlypatientswithNSCLC[J].Journal of Clinical PulmonaryMedicine,2019,24(4):614-617.tumor models. Thrombin-activated platelets release immunosuppressive cytokines including transforming growth factor-β that can inhibit natural killer cell activity, helping tumor cells to evade host immunosurveillance. Taken together, there is strong evidence that thrombin
/CHEN MZ,YANG H,WANG CH,et al.Expression and signifi-cance of PECAM1 in cancer tissuesofelderlypatientswithNSCLC[J].Journal of Clinical PulmonaryMedicine,2019,24(4):614-617.