The LRRK2-macroautophagy axis and its relevance to Parkinson's disease
1School of Pharmacy, University of Reading, Whiteknights, Reading RG6 6AP, U.K. c.manzoni@reading.ac.uk.
Abstract:
A wide variety of different functions and an impressive array of interactors have been associated with leucine-rich repeat kinase 2 (LRRK2) over the years. Here, I discuss the hypothesis that LRRK2 may be capable of interacting with different proteins at different times and places, therefore, controlling a plethora of diverse functions based on the different complexes formed. Among these, I will then focus on macroautophagy in the general context of the endolysosomal system. First, the relevance of autophagy in Parkinson's disease will be evaluated giving a brief overview of all the relevant Parkinson's disease genes; then, the association of LRRK2 with macroautophagy and the endolysosomal pathway will be analyzed based on the supporting literature.
Insights
Leucine-rich repeat kinase 2 (LRRK2) may control diverse functions by forming different protein complexes. This review explores LRRK2’s role in macroautophagy and the endolysosomal system, particularly in Parkinson's disease.
Area of Science:
- Cell Biology
- Neuroscience
- Biochemistry
Background:
- Leucine-rich repeat kinase 2 (LRRK2) is implicated in various cellular functions.
- LRRK2 interacts with a diverse range of proteins.
- Dysregulation of LRRK2 is linked to neurodegenerative diseases, notably Parkinson's disease.
Purpose of the Study:
- To explore the hypothesis that LRRK2's function is context-dependent, varying with protein complex formation.
- To focus on the role of LRRK2 in macroautophagy within the endolysosomal system.
- To review the association between LRRK2, autophagy, and the endolysosomal pathway in the context of Parkinson's disease.
Main Methods:
- Literature review and synthesis.
- Analysis of existing research on LRRK2 interactors and functions.
- Evaluation of the relevance of autophagy in Parkinson's disease genetics.
Main Results:
- LRRK2's ability to form distinct protein complexes suggests context-specific functional regulation.
- Evidence supports a significant association between LRRK2 and macroautophagy.
- LRRK2 plays a role in the endolysosomal pathway, which is relevant to Parkinson's disease.
Conclusions:
- LRRK2's diverse functions are likely mediated by its dynamic interactions and complex formation.
- LRRK2 is a key player in the interplay between macroautophagy, the endolysosomal system, and Parkinson's disease pathogenesis.
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