Developmental YAPdeltaC determines adult pathology in a model of spinocerebellar ataxia type 1.
Nat Commun
; 8(1): 1864, 2017 11 30.
Article
in En
| MEDLINE
| ID: mdl-29192206
YAP and its neuronal isoform YAPdeltaC are implicated in various cellular functions. We found that expression of YAPdeltaC during development, but not adulthood, rescued neurodegeneration phenotypes of mutant ataxin-1 knock-in (Atxn1-KI) mice. YAP/YAPdeltaC interacted with RORα via the second WW domain and served as co-activators of its transcriptional activity. YAP/YAPdeltaC formed a transcriptional complex with RORα on cis-elements of target genes and regulated their expression. Both normal and mutant Atxn1 interacted with YAP/YAPdeltaC, but only mutant Atxn1 depleted YAP/YAPdeltaC from the RORα complex to suppress transcription on short timescales. Over longer periods, mutant Atxn1 also decreased RORα in vivo. Genetic supplementation of YAPdeltaC restored the RORα and YAP/YAPdeltaC levels, recovered YAP/YAPdeltaC in the RORα complex and normalized target gene transcription in Atxn1-KI mice in vivo. Collectively, our data suggest that functional impairment of YAP/YAPdeltaC by mutant Atxn1 during development determines the adult pathology of SCA1 by suppressing RORα-mediated transcription.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phosphoproteins
/
Cerebellum
/
Gene Expression Regulation, Developmental
/
Spinocerebellar Ataxias
/
Adaptor Proteins, Signal Transducing
/
Nuclear Receptor Subfamily 1, Group F, Member 1
/
Ataxin-1
/
Neurons
Limits:
Animals
Language:
En
Journal:
Nat Commun
Journal subject:
BIOLOGIA
/
CIENCIA
Year:
2017
Document type:
Article
Affiliation country:
Japan
Country of publication:
United kingdom