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Aryl Hydrocarbon Receptor Ligands Inhibit Igf-Ii And Adipokine Stimulated Breast Cancer Cell Proliferation, Travis B. Salisbury, Gary Z. Morris, Justin K. Tomblin, Ateeq R. Chaudhry, Carla Cook, Nalini Santanam
Aryl Hydrocarbon Receptor Ligands Inhibit Igf-Ii And Adipokine Stimulated Breast Cancer Cell Proliferation, Travis B. Salisbury, Gary Z. Morris, Justin K. Tomblin, Ateeq R. Chaudhry, Carla Cook, Nalini Santanam
Pharmaceutical Science and Research
Obesity increases human cancer risk and the risk for cancer recurrence. Adipocytes secrete paracrine factors termed adipokines that stimulate signaling in cancer cells that induce proliferation. The aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor that plays roles in tumorigenesis, is regulated by exogenous lipophilic chemicals, and has been explored as a therapeutic target for cancer therapy. Whether exogenous AHR ligands modulate adipokine stimulated breast cancer cell proliferation has not been investigated. We provide evidence that adipocytes secrete insulin-like growth factor 2 (IGF-2) at levels that stimulate the proliferation of human estrogen receptor (ER) positive breast cancer cells. Using …