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Published on: June 23, 2023
The VPS35 protein and the role of its impairments in mitochondrial dysfunction in Parkinson's disease
1Institute of Biomedical Chemistry, Moscow, Russia.
Abstract:
The VPS35 is an essential protein that plays multifunctional roles in various biological processes. It is a core component of the retromer complex, involved in protein recycling from endosomes to the trans-Golgi network (TGN) and the plasma membrane. Besides its role as the retromer complex component, VPS35 interacts with many proteins and regulates mitochondrial homeostasis, mitochondrial dynamics (fusion and fission), and other important processes in various cell compartments. In the context of Parkinson's disease (PD) convincing evidence exists that VPS35 mutations, particularly [D620N], have a significant impact on normal retromer functioning, mitochondrial dysfunction, and impairment of neuronal health and survival. In this review we briefly consider structure and functions of the retromer complex, the role of VPS35 in mitochondria, and finally analyze physical and functional interactions of this protein with PD-important proteins associated with mitochondria.
Insights
VPS35 protein is crucial for cellular functions and mitochondrial health. Mutations in VPS35 are linked to Parkinson's disease, affecting neuronal survival and retromer function.
Area of Science:
- Cell Biology
- Neuroscience
- Biochemistry
Background:
- VPS35 is a vital protein, central to the retromer complex, facilitating protein recycling.
- VPS35 also regulates mitochondrial homeostasis and dynamics, impacting cellular function.
- Mutations in VPS35, like D620N, are implicated in Parkinson's disease pathogenesis.
Purpose of the Study:
- To review the structure and function of the retromer complex.
- To elucidate the role of VPS35 in mitochondrial regulation.
- To analyze VPS35 interactions with Parkinson's disease-associated proteins.
Main Methods:
- Literature review of existing studies on VPS35, retromer complex, and Parkinson's disease.
- Analysis of structural and functional data related to VPS35.
- Examination of protein-protein interactions involving VPS35 and mitochondrial proteins.
Main Results:
- VPS35 is essential for endosome-to-TGN and endosome-to-plasma membrane protein trafficking.
- VPS35 plays a significant role in maintaining mitochondrial integrity and dynamics.
- VPS35 dysfunction, particularly via mutations, contributes to neurodegeneration observed in Parkinson's disease.
Conclusions:
- VPS35 is a key player in both protein trafficking and mitochondrial health.
- Understanding VPS35's interactions is critical for deciphering Parkinson's disease mechanisms.
- Targeting VPS35 pathways may offer therapeutic strategies for Parkinson's disease.
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