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Metabolic Remodeling Induced by Adipocytes: A New Achille Heels in Invasive Breast Cancer?

Author(s):

Camille Attane*, Delphine Milhas, Andrew J. Hoy and Catherine Muller   Pages 1 - 15 ( 15 )

Abstract:


Metabolic reprogramming represents an important hallmark of cancer cells. Besides de novo fatty acid synthesis, it is now clear that cancer cells can acquire fatty acids (FA) from tumor-surrounding adipocytes to increase their invasive capacities. Indeed, adipocytes release FA in response to tumor secreted factors that are transferred to tumor cells to be either stored as triglycerides and other complex lipids or oxidized in mitochondria. Like all cells, FA can be released over time from triglyceride stores through lipolysis and then oxidized in mitochondria in cancer cells. This metabolic interaction results in specific metabolic remodeling in cancer cells, and underpins adipocyte stimulated tumor progression. Lipolysis and fatty acid oxidation therefore represent novel targets of interest in the treatment of cancer. In this review, we summarize the recent advances in our understanding of the metabolic reprogramming induced by adipocytes, with a focus on breast cancer. Then, we recapitulate recent reports studying the effect of lipolysis and fatty acid oxidation inhibitors on tumor cells and discuss the interest to target these metabolic pathways as new therapeutic approaches for cancer.

Keywords:

Breast cancer, adipocyte, metabolic remodeling, lipolysis, fatty acid oxidation, obesity tumor microenvironment

Affiliation:

Institut de Pharmacologie et de Biologie Structurale (IPBS), Universite de Toulouse, CNRS, UPS, 205 Route de Narbonne, 31077 Toulouse Cedex, Institut de Pharmacologie et de Biologie Structurale (IPBS), Universite de Toulouse, CNRS, UPS, 205 Route de Narbonne, 31077 Toulouse Cedex, Discipline of Physiology, School of Medical Sciences and Bosch Institute, Charles Perkins Centre, University of Sydney, NSW 2006, Institut de Pharmacologie et de Biologie Structurale (IPBS), Universite de Toulouse, CNRS, UPS, 205 Route de Narbonne, 31077 Toulouse Cedex



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