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Environmental and behavioral regulation of HIF-mitochondria crosstalk

期刊

FREE RADICAL BIOLOGY AND MEDICINE
卷 206, 期 -, 页码 63-73

出版社

ELSEVIER SCIENCE INC
DOI: 10.1016/j.freeradbiomed.2023.06.015

关键词

Hypoxia inducible factors; Mitochondria; Cellular stress; Circadian rhythm; Physical activity; Altitude

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Reduced oxygen availability can lead to cell and organ damage. Hypoxia inducible factors (HIFs) and mitochondria play a crucial role in the cellular response to hypoxia and help to counteract its detrimental consequences. Understanding the interaction between HIFs and mitochondria is essential for tackling hypoxia-related pathologies and harnessing the health benefits of controlled hypoxia exposures.
Reduced oxygen availability (hypoxia) can lead to cell and organ damage. Therefore, aerobic species depend on efficient mechanisms to counteract detrimental consequences of hypoxia. Hypoxia inducible factors (HIFs) and mitochondria are integral components of the cellular response to hypoxia and coordinate both distinct and highly intertwined adaptations. This leads to reduced dependence on oxygen, improved oxygen supply, maintained energy provision by metabolic remodeling and tapping into alternative pathways and increased resilience to hypoxic injuries. On one hand, many pathologies are associated with hypoxia and hypoxia can drive disease progression, for example in many cancer and neurological diseases. But on the other hand, controlled induction of hypoxia responses via HIFs and mitochondria can elicit profound health benefits and increase resilience. To tackle pathological hypoxia conditions or to apply health-promoting hypoxia exposures efficiently, cellular and systemic responses to hypoxia need to be well understood. Here we first summarize the well-established link between HIFs and mitochondria in orchestrating hypoxia-induced adaptations and then outline major environmental and behavioral modulators of their interaction that remain poorly understood.

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