Beta Amyloid Peptide: Research Paper : Miro (Mitochondrial Rho GTPase), a key player of Mitochondrial axonal transport and Mitochondrial dynamics in Neurodegenerative diseases

Miro (Mitochondrial Rho GTPase), a key player of Mitochondrial axonal transport and Mitochondrial dynamics in Neurodegenerative diseases

Abstract

Miro (mitochondrial Rho GTPases) a mitochondrial outer membrane protein, plays a vital role in the microtubule-based mitochondrial axonal transport, mitochondrial dynamics (fusion and fission) and Mito-Ca2+ homeostasis. It forms a major protein complex with Milton (an adaptor protein), kinesin and dynein (motor proteins), and facilitates bidirectional mitochondrial axonal transport such as anterograde and retrograde transport. By forming this protein complex, Miro facilitates the mitochondrial axonal transport and fulfills the neuronal energy demand, maintain the mitochondrial homeostasis and neuronal survival. It has been demonstrated that altered mitochondrial biogenesis, improper mitochondrial axonal transport, and mitochondrial dynamics are the early pathologies associated with most of the neurodegenerative diseases (NDs). Being the sole mitochondrial outer membrane protein associated with mitochondrial axonal transport-related processes, Miro proteins can be one of the key players in various NDs such as Alzheimer's disease (AD), Parkinson's disease (PD), Amyotrophic lateral sclerosis(ALS) and Huntington's disease (HD). Thus, in the current review, we have discussed the evolutionarily conserved Miro proteins and its role in the pathogenesis of the various NDs. From this, we indicated that Miro proteins may act as a potential target for a novel therapeutic intervention for the treatment of various NDs.

Keywords: Ca(2+) homeostasis; Miro; Mitochondria; Mitochondrial axonal transport; Mitochondrial dynamics; Neurodegenerative diseases.

Copyright © 2020 Elsevier B.V. and Mitochondria Research Society. All rights reserved.

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