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Publication : RAB7L1 interacts with LRRK2 to modify intraneuronal protein sorting and Parkinson's disease risk.

First Author  MacLeod DA Year  2013
Journal  Neuron Volume  77
Issue  3 Pages  425-39
PubMed ID  23395371 Mgi Jnum  J:233567
Mgi Id  MGI:5784974 Doi  10.1016/j.neuron.2012.11.033
Citation  MacLeod DA, et al. (2013) RAB7L1 interacts with LRRK2 to modify intraneuronal protein sorting and Parkinson's disease risk. Neuron 77(3):425-39
abstractText  Recent genome-wide association studies have linked common variants in the human genome to Parkinson's disease (PD) risk. Here we show that the consequences of variants at 2 such loci, PARK16 and LRRK2, are highly interrelated, both in terms of their broad impacts on human brain transcriptomes of unaffected carriers, and in terms of their associations with PD risk. Deficiency of the PARK16 locus gene RAB7L1 in primary rodent neurons, or of a RAB7L1 ortholog in Drosophila dopamine neurons, recapitulated degeneration observed with expression of a familial PD mutant form of LRRK2, whereas RAB7L1 overexpression rescued the LRRK2 mutant phenotypes. PD-associated defects in RAB7L1 or LRRK2 led to endolysosomal and Golgi apparatus sorting defects and deficiency of the VPS35 component of the retromer complex. Expression of wild-type VPS35, but not a familial PD-associated mutant form, rescued these defects. Taken together, these studies implicate retromer and lysosomal pathway alterations in PD risk.
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