2017
A proteomic analysis of LRRK2 binding partners reveals interactions with multiple signaling components of the WNT/PCP pathway
SALAŠOVÁ, Alena, C. YOKOTA, David POTĚŠIL, Zbyněk ZDRÁHAL, Vítězslav BRYJA et. al.Základní údaje
Originální název
A proteomic analysis of LRRK2 binding partners reveals interactions with multiple signaling components of the WNT/PCP pathway
Autoři
SALAŠOVÁ, Alena (203 Česká republika), C. YOKOTA (752 Švédsko), David POTĚŠIL (203 Česká republika, domácí), Zbyněk ZDRÁHAL (203 Česká republika, domácí), Vítězslav BRYJA (203 Česká republika, garant, domácí) a E. ARENAS (752 Švédsko)
Vydání
MOLECULAR NEURODEGENERATION, LONDON, BIOMED CENTRAL LTD, 2017, 1750-1326
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30210 Clinical neurology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Impakt faktor
Impact factor: 6.426
Kód RIV
RIV/00216224:14310/17:00094936
Organizační jednotka
Přírodovědecká fakulta
UT WoS
000405188900001
Klíčová slova anglicky
WNT/planar cell polarity; PRICKLE1; CELSR1; DVL; Parkinson's disease; Dopaminergic neurons; Substantia nigra; Immunoprecipitation; Endocytosis; Signalosomes
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 2. 3. 2018 09:13, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Background: Autosomal-dominant mutations in the Park8 gene encoding Leucine-rich repeat kinase 2 (LRRK2) have been identified to cause up to 40% of the genetic forms of Parkinson's disease. However, the function and molecular pathways regulated by LRRK2 are largely unknown. It has been shown that LRRK2 serves as a scaffold during activation of WNT/beta-catenin signaling via its interaction with the beta-catenin destruction complex, DVL1-3 and LRP6. In this study, we examine whether LRRK2 also interacts with signaling components of the WNT/Planar Cell Polarity (WNT/PCP) pathway, which controls the maturation of substantia nigra dopaminergic neurons, the main cell type lost in Parkinson's disease patients. Methods: Co-immunoprecipitation and tandem mass spectrometry was performed in a mouse substantia nigra cell line (SN4741) and human HEK293T cell line in order to identify novel LRRK2 binding partners. Inhibition of the WNT/beta-catenin reporter, TOPFlash, was used as a read-out of WNT/PCP pathway activation. The capacity of LRRK2 to regulate WNT/PCP signaling in vivo was tested in Xenopus laevis' early development. Results: Our proteomic analysis identified that LRRK2 interacts with proteins involved in WNT/PCP signaling such as the PDZ domain-containing protein GIPC1 and Integrin-linked kinase (ILK) in dopaminergic cells in vitro and in the mouse ventral midbrain in vivo. Moreover, co-immunoprecipitation analysis revealed that LRRK2 binds to two core components of the WNT/PCP signaling pathway, PRICKLE1 and CELSR1, as well as to FLOTILLIN-2 and CULLIN-3, which regulate WNT secretion and inhibit WNT/beta-catenin signaling, respectively. We also found that PRICKLE1 and LRRK2 localize in signalosomes and act as dual regulators of WNT/PCP and beta-catenin signaling. Accordingly, analysis of the function of LRRK2 in vivo, in X. laevis revelaed that LRKK2 not only inhibits WNT/beta-catenin pathway, but induces a classical WNT/PCP phenotype in vivo.
Návaznosti
GBP206/12/G151, projekt VaV |
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LM2015043, projekt VaV |
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LQ1601, projekt VaV |
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