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Analysis of SCAP N-glycosylation and Trafficking in Human Cells
Published on: November 8, 2016
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Rab32 interacts with SNX6 and affects retromer-dependent Golgi trafficking
Dieter Waschbüsch1,2, Nicole Hübel1, Edith Ossendorf1
1Department of Experimental Tumorbiology, Westfalische Wilhelms University Muenster, Muenster, Germany.
Plos One
|January 15, 2019
Summary
Rab32 directly interacts with sorting nexin 6 (SNX6), a component of the retromer complex. This interaction impacts Golgi trafficking, suggesting a link between Rab32, retromer, and leucine-rich repeat kinase 2 (LRRK2) in Parkinson's disease pathogenesis.
Area of Science:
- Cell Biology
- Neuroscience
- Genetics
Background:
- Leucine-rich repeat kinase 2 (LRRK2) is implicated in Parkinson's disease (PD) and its functions involve membrane trafficking regulated by Rab GTPases.
- Rab32, a Rab GTPase, is linked to cellular functions and PD, and interacts with LRRK2 regulators like Rab29.
Purpose of the Study:
- To investigate the interaction between Rab32 and sorting nexin 6 (SNX6).
- To elucidate the role of Rab32 in the SNX6/retromer trafficking pathway and its potential connection to LRRK2 in PD.
Main Methods:
- Co-immunoprecipitation to demonstrate direct interaction between Rab32 and SNX6.
- Cellular localization studies of cation-independent mannose-6-phosphate receptors (CI-MPR) in the presence of Rab32 and SNX6 alterations.
Main Results:
- Rab32 directly interacts with SNX6, a component of the retromer complex.
- Rab32 and SNX6 co-regulate the trafficking of CI-MPR to the trans-Golgi network (TGN).
- These findings suggest Rab32 is involved in SNX6/retromer-mediated Golgi trafficking.
Conclusions:
- Rab32 plays a role in the SNX6/retromer trafficking pathway at the Golgi.
- This study suggests a novel link between Rab32, the retromer complex, and LRRK2 in the context of Parkinson's disease.
- Further research into this connection may reveal new therapeutic targets for PD.
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