Journal
CELLS
Volume 11, Issue 10, Pages -Publisher
MDPI
DOI: 10.3390/cells11101688
Keywords
cigarette smoking; e-cigarette smoking; mitochondria; fusion; fission
Categories
Funding
- NIH-R01 [AG053988]
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Toxins present in cigarette and e-cigarette smoke have fatal health impacts, especially on cell repair and mitochondrial function. Research suggests that these toxins trigger abnormal responses, damage mitochondrial function, and disrupt biochemical processes. Developing effective treatments is of prime importance.
Toxins present in cigarette and e-cigarette smoke constitute a significant cause of illnesses and are known to have fatal health impacts. Specific mechanisms by which toxins present in smoke impair cell repair are still being researched and are of prime interest for developing more effective treatments. Current literature suggests toxins present in cigarette smoke and aerosolized e-vapor trigger abnormal intercellular responses, damage mitochondrial function, and consequently disrupt the homeostasis of the organelle's biochemical processes by increasing reactive oxidative species. Increased oxidative stress sets off a cascade of molecular events, disrupting optimal mitochondrial morphology and homeostasis. Furthermore, smoking-induced oxidative stress may also amalgamate with other health factors to contribute to various pathophysiological processes. An increasing number of studies show that toxins may affect mitochondria even through exposure to secondhand or thirdhand smoke. This review assesses the impact of toxins present in tobacco smoke and e-vapor on mitochondrial health, networking, and critical structural processes, including mitochondria fission, fusion, hyper-fusion, fragmentation, and mitophagy. The efforts are focused on discussing current evidence linking toxins present in first, second, and thirdhand smoke to mitochondrial dysfunction.
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