Abstract
Pancreatic cancer is one of the most aggressive malignancies, with a 5-year overall survival of less than 5%. Tumor drug resistance to conventional chemotherapy, such as Gemcitabine, is often a significant contributor to poor overall survival. One of the common mechanisms of Gemcitabine resistance is activation of cell signaling via increased phosphorylation of mitogen-Activated kinase (MAP) kinases, leading to increased tumor survival and reduced sensitivity to chemotherapeutic agents. A growing body of evidence suggests that the CXCL12/CXCR4 signal transduction axis in the tumor microenvironment is an important mediator of tumor migration, growth, and drug resistance. We hypothesized that stromal cells such as carcinoma-associated fibroblasts (CAFs), an important cellular component of the tumor microenvironment (TME), play a contributory role in the growth, invasiveness, and drug response of pancreatic cancer cells (PCCs)
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