Medical Sciences Commons^™

Radiation Induces Metabolic Dysregulation In Pulmonary Fibroblasts, Josly Pierre-Louis, Margaret A. T. Freeberg, Jane K. Rebman, Thomas H. Thatcher, Patricia J. Sime

Graduate Research Posters

Rationale: Exposure of the lung to ionizing radiation, such as during radiotherapy, can result in pulmonary fibrosis (PF), which has few treatment options. PF is characterized by an accumulation of extracellular matrix proteins that form scar tissue, resulting in dyspnea, disruption of gas exchange, and even death. We and others have shown that metabolic reprogramming is a hallmark of idiopathic pulmonary fibrosis (IPF). IPF lung tissue, and lung fibroblasts treated with TGF-β, exhibit increased aerobic glycolysis with increased expression of lactate dehydrogenase A (LDHA) and excess production of lactate, leading to reduced extracellular pH that activates latent TGF-β. Here, we …