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Microenvironment Generated During Egfr Targeted Killing Of Pancreatic Tumor Cells By Atc Inhibits Myeloid-Derived Suppressor Cells Through Cox2 And Pge2 Dependent Pathway, Archana Thakur, Dana Schalk, Elyse Tomaszewski, Sri Kondadasula, Hiroshi Yano, Fazlul H. Sarkar, Lawrence G. Lum
Microenvironment Generated During Egfr Targeted Killing Of Pancreatic Tumor Cells By Atc Inhibits Myeloid-Derived Suppressor Cells Through Cox2 And Pge2 Dependent Pathway, Archana Thakur, Dana Schalk, Elyse Tomaszewski, Sri Kondadasula, Hiroshi Yano, Fazlul H. Sarkar, Lawrence G. Lum
Wayne State University Associated BioMed Central Scholarship
Abstract
Background
Myeloid-derived suppressor cells (MDSCs) are one of the major components of the immune-suppressive network, play key roles in tumor progression and limit therapeutic responses. Recently, we reported that tumor spheres formed by breast cancer cell lines were visibly smaller in a Th1 enriched microenvironment with significantly reduced differentiation of MDSC populations in 3D culture. In this study, we investigated the mechanism(s) of bispecific antibody armed ATC mediated inhibition of MDSC in the presence or absence of Th1 microenvironment.
Methods
We used 3D co-culture model of peripheral blood mononuclear cells (PBMC) with pancreatic cancer cells MiaPaCa-2 [MiaE] …