A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in context

Summary: Background: Extracellular signal-regulated kinase (ERK/MAPK) pathway in the brain is hypothesized to be a critical convergent node in the development of autism spectrum disorder. We reasoned that selectively targeting this pathway could reverse core autism-like phenotype in animal models....

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Main Authors: Kartikeya Murari, Abdulrahman Abushaibah, Jong M. Rho, Ray W. Turner, Ning Cheng
Format: Article
Language:English
Published: Elsevier 2023-05-01
Series:EBioMedicine
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352396423001305
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author Kartikeya Murari
Abdulrahman Abushaibah
Jong M. Rho
Ray W. Turner
Ning Cheng
author_facet Kartikeya Murari
Abdulrahman Abushaibah
Jong M. Rho
Ray W. Turner
Ning Cheng
author_sort Kartikeya Murari
collection DOAJ
description Summary: Background: Extracellular signal-regulated kinase (ERK/MAPK) pathway in the brain is hypothesized to be a critical convergent node in the development of autism spectrum disorder. We reasoned that selectively targeting this pathway could reverse core autism-like phenotype in animal models. Methods: Here we tested a clinically relevant, selective inhibitor of ERK pathway, PD325901 (Mirdametinib), in a mouse model of idiopathic autism, the BTBR mice. Findings: We report that treating juvenile mice with PD325901 reduced ERK pathway activation, dose and duration-dependently reduced core disease-modeling deficits in sociability, vocalization and repetitive behavior, and reversed abnormal EEG signals. Further analysis revealed that subchronic treatment did not affect weight gain, locomotion, or neuronal density in the brain. Parallel treatment in the C57BL/6J mice did not alter their phenotype. Interpretation: Our data indicate that selectively inhibiting ERK pathway using PD325901 is beneficial in the BTBR model, thus further support the notion that ERK pathway is critically involved in the pathophysiology of autism. These results suggest that a similar approach could be applied to animal models of syndromic autism with dysregulated ERK signaling, to further test selectively targeting ERK pathway as a new approach for treating autism. Funding: : This has beenwork was supported by Alberta Children’s Hospital Research Foundation (JMR & NC), University of Calgary Faculty of Veterinary Medicine (NC), Kids Brain Health Network (NC), and Natural Sciences and Engineering Research Council of Canada (NC).
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spelling doaj.art-ce1d4dbd6e25492382c12539cd1ca4b52023-04-22T06:21:06ZengElsevierEBioMedicine2352-39642023-05-0191104565A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in contextKartikeya Murari0Abdulrahman Abushaibah1Jong M. Rho2Ray W. Turner3Ning Cheng4Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Canada; Department of Biomedical Engineering, Schulich School of Engineering, University of Calgary, Canada; Department of Electrical and Software Engineering, Schulich School of Engineering, University of Calgary, CanadaAlberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Canada; Bachelor of Health Sciences, Cumming School of Medicine, University of Calgary, CanadaHotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, CanadaHotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Canada; Department of Cell Biology & Anatomy, Cumming School of Medicine, University of Calgary, CanadaHotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Canada; Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Canada; Department of Comparative Biology and Experimental Medicine, Faculty of Veterinary Medicine, University of Calgary, Canada; Corresponding author. Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Canada.Summary: Background: Extracellular signal-regulated kinase (ERK/MAPK) pathway in the brain is hypothesized to be a critical convergent node in the development of autism spectrum disorder. We reasoned that selectively targeting this pathway could reverse core autism-like phenotype in animal models. Methods: Here we tested a clinically relevant, selective inhibitor of ERK pathway, PD325901 (Mirdametinib), in a mouse model of idiopathic autism, the BTBR mice. Findings: We report that treating juvenile mice with PD325901 reduced ERK pathway activation, dose and duration-dependently reduced core disease-modeling deficits in sociability, vocalization and repetitive behavior, and reversed abnormal EEG signals. Further analysis revealed that subchronic treatment did not affect weight gain, locomotion, or neuronal density in the brain. Parallel treatment in the C57BL/6J mice did not alter their phenotype. Interpretation: Our data indicate that selectively inhibiting ERK pathway using PD325901 is beneficial in the BTBR model, thus further support the notion that ERK pathway is critically involved in the pathophysiology of autism. These results suggest that a similar approach could be applied to animal models of syndromic autism with dysregulated ERK signaling, to further test selectively targeting ERK pathway as a new approach for treating autism. Funding: : This has beenwork was supported by Alberta Children’s Hospital Research Foundation (JMR & NC), University of Calgary Faculty of Veterinary Medicine (NC), Kids Brain Health Network (NC), and Natural Sciences and Engineering Research Council of Canada (NC).http://www.sciencedirect.com/science/article/pii/S2352396423001305AutismERKSelective inhibitorPD325901/MirdametinibRepurposed drugEEG
spellingShingle Kartikeya Murari
Abdulrahman Abushaibah
Jong M. Rho
Ray W. Turner
Ning Cheng
A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in context
EBioMedicine
Autism
ERK
Selective inhibitor
PD325901/Mirdametinib
Repurposed drug
EEG
title A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in context
title_full A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in context
title_fullStr A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in context
title_full_unstemmed A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in context
title_short A clinically relevant selective ERK-pathway inhibitor reverses core deficits in a mouse model of autismResearch in context
title_sort clinically relevant selective erk pathway inhibitor reverses core deficits in a mouse model of autismresearch in context
topic Autism
ERK
Selective inhibitor
PD325901/Mirdametinib
Repurposed drug
EEG
url http://www.sciencedirect.com/science/article/pii/S2352396423001305
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