Cmar_a_247874 4999..5008

1Department of Gastroduodenal and Pancreatic Surgery, Translation Medicine Research Center of Liver Cancer, Laboratory of Digestive Oncology, Affiliated Cancer Hospital of Xiangya Medical School & Hunan Cancer Hospital, Central South University, Changsha, People's Republic of China; 2Graduates School, Cancer Research Institute, University of South China, Hengyang, People's Republic of China; 3Institute of Pathogen Biology and Immunology of College of Biology, State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha, People’s Republic of China Introduction: Primary gastric diffuse large B-cell lymphoma (GDLBCL) is a heterogeneous disease in clinicopathological features and prognosis. Programmed death ligand-1 (PD-L1) and microRNA-34a (miR-34a) play crucial roles in GDLBCL progress. The purpose of this research is to explore the clinical significance of PD-L1 and miR-34a expression in GDLBCL. Patients and Methods: The expressions of PD-L1 and miR-34a were examined by IHC and qRT-PCR in 109 patients who were diagnosed with GDLBCL and were treated with