Journal
CHEST
Volume 148, Issue 5, Pages 1140-1147Publisher
AMER COLL CHEST PHYSICIANS
DOI: 10.1378/chest.15-0634
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Funding
- NHLBI NIH HHS [R01HL062252-11, R01 HL062252, R01 HL065270, HL-65270] Funding Source: Medline
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In recent years, the potentially adverse role of sleep-disordered breathing in cancer incidence and outcomes has emerged. In parallel, animal models of intermittent hypoxia (IH) and sleep fragmentation (SF) emulating the two major components of OSA have lent support to the notion that OSA may enhance the proliferative and invasive properties of solid tumors. Based on several lines of evidence, we propose that OSA-induced increases in sympathetic outflow and alterations in immune function are critically involved in modifying oncologic processes including angiogenesis. In this context, we suggest that OSA, via IH (and potentially SF), promotes changes in several signaling pathways and transcription factors that coordinate malignant transformation and expansion, disrupts host immunologic surveillance, and consequently leads to increased probability of oncogenesis, accelerated tumor proliferation, and invasion, ultimately resulting in adverse outcomes.
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