Drp1 in Ischemic Neuronal Death: An Unusual Suspect

ISSN: 1875-533X (Online)
ISSN: 0929-8673 (Print)

Volume 24, 42 Issues, 2017

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Current Medicinal Chemistry

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Atta-ur-Rahman, FRS
Honorary Life Fellow
Kings College
University of Cambridge

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Drp1 in Ischemic Neuronal Death: An Unusual Suspect

Current Medicinal Chemistry, 21(19): 2183-2189.

Author(s): H. Pradeep, B. Sharma and GK Rajanikant.

Affiliation: School of Biotechnology, Coordinator, DBT - Bioinformatics Centre, National Institute of Technology Calicut, Calicut - 673601, India.


Mitochondria play a crucial role in multitude of cellular processes including energy production, calcium signaling, and apoptosis. This remarkable organelle constantly undergoes a complex cycle of fusion and fission, a crucial quality control system for maintaining homeostasis of the cell. Any impairment in this dynamic behavior is linked to a wide range of cellular abnormalities. Consistent with this concept, neuronal apoptosis often emanates in conjunction with rampant mitochondrial fragmentation. The mitochondrial dynamics are tightly regulated by a master mediator called Dynamin related protein 1 (Drp1), which in normal conditions facilitates mitochondrial fission. However, diverse stress conditions induce intensified translocation of cytosolic Drp1 to the mitochondria, contributing excessive fragmentation and concomitant apoptosis. Despite this knowledge, crucial questions such as how fission of the inner and outer mitochondrial membranes is coordinated and how these processes are linked to apoptosis and necrosis remain to be answered. This review focuses on delineating the mechanism of Drp1 activation and explores the pathophysiological importance of dysregulated mitochondrial fission with a special emphasis on ischemic stroke. Further, it also provides a new mechanistic link between ischemia and Drp1-mediated mitochondrial fission.


Cerebral ischemia, mitochondrial fission, dynamin related protein 1, apoptosis.

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Article Details

Volume: 21
Issue Number: 19
First Page: 2183
Last Page: 2189
Page Count: 7
DOI: 10.2174/0929867321666131228203513
Price: $58

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