Abstract
The number of cancers attributed to obesity is increasing over time. The mechanisms classically implicated in cancer pathogenesis and progression in patients with obesity involve adiposity-related alteration of insulin, sex hormones, and adipokine pathways. However, they do not fully capture the complexity of the association between obesity-related nutritional imbalance and cancer. Gut hormones are secreted by enteroendocrine cells along the gastrointestinal tract in response to nutritional cues, and act as nutrient sensors, regulating eating behavior and energy homeostasis and playing a role in immune-modulation. The dysregulation of gastrointestinal hormone physiology has been implicated in obesity pathogenesis. For their peculiar function, at the cross-road between nutrients intake, energy homeostasis and inflammation, gut hormones might represent an important but still underestimated mechanism underling the obesity-related high incidence of cancer. In addition, cancer research has revealed the widespread expression of gut hormone receptors in neoplastic tissues, underscoring their implication in cell proliferation, migration, and invasion processes that characterize tumor growth and aggressiveness. In this review, we hypothesize that obesity-related alterations in gut hormones might be implicated in cancer pathogenesis, and provide evidence of the pathways potentially involved.
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Acknowledgements
Obesity Programs of Nutrition, Education, Research and Assessment (OPERA) group members: Annamaria Colao, Carlo Alviggi, Sara Aprano, Rocco Barazzoni, Luigi Barrea, Francesco Beguinot, Annamaria Belfiore, Giuseppe Bellastella, Silvia Bettini, Giuseppe Bifulco, Maurizio Bifulco, Caterina Brasacchio, Filomena Bottiglieri, Luca Busetto, Brunella Capaldo, Massimiliano Caprio, Felipe Casanueva, Luigi Di Luigi, Andrea Di Nisio, Laura Di Renzo, Carolina Di Somma, Lorenzo Maria Donini, Katherine Esposito, Massimo Federici, Dario Giugliano, Lucio Gnessi, Gianluca Gortan Cappellari, Brunella Guida, Maria Angela Guzzardi, Daniela Laudisio, Andrea Lenzi, Alessia Liccardi, Carla Lubrano, Paolo Emidio Macchia, Silvia Magno, Paolo Marzullo, Davide Menafra, Silvia Migliaccio, Fabrizio Muratori, Giovanna Muscogiuri, Raffaele Napoli, Caterina Pelosini, Francesca Pivari, Rosario Pivonello, Eleonora Poggiogalle, Gabriella Pugliese, Gabriele Riccardi, Alberto Ritieni, Fiammetta Romano, Domenico Salvatore, Alessandro Sanduzzi, Ferruccio Santini, Silvia Savastano, Paolo Sbraccia, Giovanni Scambia Laura Soldati, Giovanni Spera, Maria Grazia Tarsitano, Dario Tuccinardi, Olga Vaccaro, Mary Venneri, Samir Sukkar, and Roberto Vettor.
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Guzzardi, M.A., Pugliese, G., Bottiglieri, F. et al. Obesity-related gut hormones and cancer: novel insight into the pathophysiology. Int J Obes 45, 1886–1898 (2021). https://doi.org/10.1038/s41366-021-00865-8
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DOI: https://doi.org/10.1038/s41366-021-00865-8