Journal
LIFE SCIENCES
Volume 265, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.lfs.2020.118790
Keywords
Adapted physical activity; Breast cancer; Signaling pathways; Molecular markers; Narrative review
Funding
- University of Naples Parthenope
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Obesity and sedentary lifestyle are modifiable factors strongly linked to breast cancer risk worldwide. A well-designed physical activity program can positively impact cellular signaling pathways and molecular markers in breast cancer cells, potentially influencing tumor growth and survival rates. Regular exercise has been shown to affect multiple cancer hallmarks and may influence breast cancer development and recurrence through changes in circulating hormones and biological mechanisms.
Epidemiologic evidence suggests that obesity and sedentary are modifiable factors strongly associated with breast cancer risk worldwide. Since breast cancer represents the most frequent malignant neoplasm and the second cause of cancer-related deaths in women worldwide, an insight into the molecular mechanisms clarifying the effects of physical activity in breast cancer cells could have important implication for changing this cancer burden. In this narrative Review article, we summarize the current knowledge, regarding the effects of adapted physical activity program, focusing on the cellular signaling pathways activated and on the molecular markers involved in breast cancer. Regular exercise training in breast cancer patients has been shown to positively affect tumor-growth and survival rate. Indeed, emerging work demonstrates that regular exercise is able to affect multiple cancer hallmarks influencing the development and progression of cancer. In conclusion, changes in the circulating insulin, adipokines and estrogen levels, inflammation and oxidative stress could represent some of the possible biological mechanisms through which exercise may influence breast cancer development and recurrence.
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