Abstract
The progressive damage and deprivation of neuronal cholinergic neurons lead to critical loss of learning and memory-based brain function, characterized as Alzheimer’s disease (AD). This disorder is associated with two main hall marker proteins in neurofibrillary tangles, i.e. amyloid-beta (Aβ) plaques and hyperphosphorylated tau along with α-synuclein, but none of them explains the complete aetiology of AD. Various attempts have been made to relate the complex interlinkage of tau and Aβ proteins with many other proteins to understand the pathophysiology of AD. Mitochondrial dynamics—a fusion and fission balance—has been linked to AD as its imbalance leads to elevated fragmentation of mitochondria and irregular mitochondrial distribution resulting in neuronal apoptosis and decline of cognitive function leading to AD. Aβ plaque formation in neuronal mitochondria imbalances the mitochondrial dynamic process by increasing the fission and reducing the fusion phenomenon. In this chapter, we tried to explore the role of different proteins such as Drp1, Fis1, Mff, MiD49, MiD51, and endophilin-B1 (mitochondrial fission proteins) and Mfn1/2, Opa1, Oma1, HDAC6, AIM2, and cAMP/PKA (mitochondrial fusion proteins) in the progression of AD, which would be targeted as potential targets for the treatment of AD in future.
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Abbreviations
- AD:
-
Alzheimer’s disease
- AIM2:
-
Absent in melanoma 2
- APP:
-
Amyloid precursor protein
- Aẞ:
-
Amyloid-beta
- Ca2+:
-
Calcium
- CL:
-
Cardiolipin
- Drp1:
-
Dynamin-related protein 1
- ER:
-
Endoplasmic reticulum
- ETC:
-
Electron transport chain
- Fis1:
-
Mitochondrial fission protein 1
- HDAC6:
-
Histone deacetylase 6
- IMM:
-
Inner mitochondrial membrane
- l-OPA1:
-
Long-type optic atrophy protein 1
- MAPT:
-
Microtubule-associated protein tau
- Mff:
-
Mitochondrial fission factor
- Mfn1/2:
-
Mitofusins 1 and 2
- MiD49 and MiD51:
-
Mitochondrial dynamics proteins of 49 and 51 kDa
- Oma1:
-
Overlapping with the M-AAA protease homolog
- OMM:
-
Outer mitochondrial membrane
- Opa1:
-
Optic atrophy protein 1
- PS1:
-
Presenilin 1
- PS2:
-
Presenilin 2
- s-OPA1:
-
Short-type optic atrophy protein 1
- SPs:
-
Senile plaques
- YME1L:
-
Yeast mitochondrial AAA metalloprotease like 1 ATPase
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Pandey, R., Bisht, P., Kumari, A., Ray, A., Ravichandiran, V., Kumar, N. (2023). Targeting Mitochondrial Dynamics as a Restorative Approach in the Treatment of Alzheimer’s Disease. In: Kumar, D., Patil, V.M., Wu, D., Thorat, N. (eds) Deciphering Drug Targets for Alzheimer’s Disease. Springer, Singapore. https://doi.org/10.1007/978-981-99-2657-2_9
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