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High Glucose-Upregulated Pd-L1 Expression Through Ras Signaling-Driven Downregulation Of Ptrh1 Leads To Suppression Of T Cell Cytotoxic Function In Tumor Environment, Chenggang Gao, Jiaoshun Chen, Jianwei Bai, Haoxiang Zhang, Yanyi Tao, Shihong Wu, Hehe Li, Heshui Wu, Qiang Shen, Tao Yin Jul 2023

High Glucose-Upregulated Pd-L1 Expression Through Ras Signaling-Driven Downregulation Of Ptrh1 Leads To Suppression Of T Cell Cytotoxic Function In Tumor Environment, Chenggang Gao, Jiaoshun Chen, Jianwei Bai, Haoxiang Zhang, Yanyi Tao, Shihong Wu, Hehe Li, Heshui Wu, Qiang Shen, Tao Yin

School of Graduate Studies Faculty Publications

Background: Nearly 80% of patients with pancreatic cancer suffer from glucose intolerance or diabetes. Pancreatic cancer complicated by diabetes has a more immunosuppressive tumor microenvironment (TME) and is associated with a worse prognosis. The relationship between glucose metabolism and programmed cell death-Ligand 1 (PD-L1) is close and complex. It is important to explore the regulation of high glucose on PD-L1 expression in pancreatic cancer and its effect on infiltrating immune effectors in the tumor microenvironment. Methods: Diabetic murine models (C57BL/6) were used to reveal different immune landscape in euglycemic and hyperglycemic pancreatic tumor microenvironment. Bioinformatics, WB, iRIP [Improved RNA Binding …


Exposure To Pcb126 During The Nursing Period Reversibly Impacts Early-Life Glucose Tolerance, Brittany B. Rice, Keegan W. Sammons, Sara Y. Ngo Tenlep, Madeline T. Weltzer, Leryn J. Reynolds, Cetewayo S. Rashid, Hollie I. Swanson, Kevin J. Pearson Jan 2023

Exposure To Pcb126 During The Nursing Period Reversibly Impacts Early-Life Glucose Tolerance, Brittany B. Rice, Keegan W. Sammons, Sara Y. Ngo Tenlep, Madeline T. Weltzer, Leryn J. Reynolds, Cetewayo S. Rashid, Hollie I. Swanson, Kevin J. Pearson

Human Movement Sciences & Special Education Faculty Publications

Polychlorinated biphenyls (PCBs) are persistent environmental organic pollutants known to have detrimental health effects. Using a mouse model, we previously demonstrated that PCB126 exposure before and during pregnancy and throughout the perinatal period adversely affected offspring glucose tolerance and/or body composition profiles. The purpose of this study was to investigate the glucose tolerance and body composition of offspring born to dams exposed to PCB126 during the nursing period only. Female ICR mice were bred, and half of the dams were exposed to either vehicle (safflower oil) or 1 µmole PCB126 per kg of body weight via oral gavage on postnatal …