Abstract
Obesity, which is defined as a body mass index (BMI) ≥30 kg/m2, is a leading risk factor for many cancers. Increased BMI is a poor prognostic factor and portends worse cancer-specific outcomes in several types of tumors. In this chapter, the underlying mechanism of obesity-cancer link will be discussed, including lipid accumulation, inflammation, insulin resistance and adipokines. The etiology and epidemiology associations between obesity and carcinogenesis will be described in hepatocellular carcinoma, colorectal cancer, esophageal cancer, pancreatic cancer and breast cancer, respectively. The particular mechanism of obesity in specific cancers, such as oxidative stress in liver cancer, dysbiotic microbiota in colorectal cancer, gastric acid reflux in esophageal cancer and estrogen in breast cancer, will be illustrated. An understanding of the mechanism of obesity-induced cancer will provide a framework for developing rational interventions to mitigate the pro-tumorigenic effects. The link between obesity and cancer underscores the importance of weight management in cancer prevention.
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Zhang, X., Wu, W.K.K., Yu, J. (2016). Obesity and Cancer. In: Ahmad, S., Imam, S. (eds) Obesity. Springer, Cham. https://doi.org/10.1007/978-3-319-19821-7_16
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DOI: https://doi.org/10.1007/978-3-319-19821-7_16
Publisher Name: Springer, Cham
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