A looming role of mitochondrial calcium in dictating the lung epithelial integrity and pathophysiology of lung diseases

With the increasing appreciation of mitochondria in modulating cellular homeostasis, various disease biology researchers have started exploring the detailed role of mitochondria in multiple diseases beyond neuronal and muscular diseases. In this context, emerging shreds of evidence in lung biology i...

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Bibliographic Details
Published in:Mitochondrion 2020-11, Vol.55, p.111-121
Main Authors: Ray, Archita, Jaiswal, Ashish, Dutta, Joytri, Singh, Sabita, Mabalirajan, Ulaganathan
Format: Article
Language:English
Subjects:
Calcium - metabolism
Calcium Signaling
Dysfunctional mitochondria
Humans
Lung - chemistry
Lung Diseases - metabolism
Lung Diseases - physiopathology
Lung epithelia
Lung homeostasis
Mitochondria - chemistry
Mitochondrial Ca2
Mitophagy
Review
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Summary:With the increasing appreciation of mitochondria in modulating cellular homeostasis, various disease biology researchers have started exploring the detailed role of mitochondria in multiple diseases beyond neuronal and muscular diseases. In this context, emerging shreds of evidence in lung biology indicated the meticulous role of lung epithelia in provoking a plethora of lung diseases in contrast to earlier beliefs. As lung epithelia are ceaselessly exposed to the environment, they need to have multiple protective mechanisms to maintain the integrity of lung structure and function. As ciliated airway epithelium and type 2 alveolar epithelia require intense energy for executing their key functions like ciliary beating and surfactant production, it is no surprise that defects in mitochondrial function in these cells could perturb lung homeostasis and engage in the pathophysiology of lung diseases. On one hand, intracellular calcium plays the central role in executing key functions of lung epithelia, and on the other hand maintenance of intracellular calcium needs the buffering role of mitochondria. Thus, the regulation of mitochondrial calcium in lung epithelia seems to be critical in lung homeostasis and could be decisive in the pathogenesis of various lung diseases.
ISSN:1567-7249
1872-8278
DOI:10.1016/j.mito.2020.09.004