TY - JOUR
T1 - Large-scale analyses of CAV1 and CAV2 suggest their expression is higher in post-mortem ALS brain tissue and affects survival
AU - Adey, Brett N.
AU - Cooper-Knock, Johnathan
AU - Al Khleifat, Ahmad
AU - Fogh, Isabella
AU - van Damme, Philip
AU - Corcia, Philippe
AU - Couratier, Philippe
AU - Hardiman, Orla
AU - McLaughlin, Russell
AU - Gotkine, Marc
AU - Drory, Vivian
AU - Silani, Vincenzo
AU - Ticozzi, Nicola
AU - Veldink, Jan H.
AU - van den Berg, Leonard H.
AU - de Carvalho, Mamede
AU - Pinto, Susana
AU - Mora Pardina, Jesus S.
AU - Povedano Panades, Mónica
AU - Andersen, Peter M.
AU - Weber, Markus
AU - Başak, Nazli A.
AU - Shaw, Christopher E.
AU - Shaw, Pamela J.
AU - Morrison, Karen E.
AU - Landers, John E.
AU - Glass, Jonathan D.
AU - Vourc’h, Patrick
AU - Dobson, Richard J.B.
AU - Breen, Gerome
AU - Al-Chalabi, Ammar
AU - Jones, Ashley R.
AU - Iacoangeli, Alfredo
N1 - Funding Information:
We would like to acknowledge funding from the following funders: UK Research and Innovation; Medical Research Council; South London and Maudsley NHS Foundation Trust; MND Scotland; Motor Neurone Disease Association; National Institute for Health Research; Spastic Paraplegia Foundation; Rosetrees Trust; Darby Rimmer MND Foundation. Funding for open access charge: UKRI. BA acknowledges funding from an NIHR pre-doctoral fellowship (NIHR301067). AI is funded by the Motor Neurone Disease Association and South London and Maudsley NHS Foundation Trust. JC-K is supported by a Wellcome Trust fellowship (216596/Z/19/Z). AAK is funded by ALS Association Milton Safenowitz Research Fellowship (grant number 22-PDF-609. DOI: 10.52546/pc.gr.150909.), The Motor Neurone Disease Association (MNDA) Fellowship (AAK/Oct21/975-799), The Darby Rimmer Foundation, and The NIHR Maudsley Biomedical Research Centre. This is an EU Joint Programme-Neurodegenerative Disease Research (JPND) project. The project is supported through the following funding organizations under the aegis of JPND: http://www.neurodegenerationresearch.eu/ [United Kingdom, Medical Research Council MR/L501529/1 to AA-C, principal investigator (PI) and MR/R024804/1 to AA-C, PI; Economic and Social Research Council ES/L008238/1 to AA-C (co-PI)] and through the Motor Neurone Disease Association. This study represents independent research partly funded by the National Institute for Health Research (NIHR) Biomedical Research Centre at South London and Maudsley NHS Foundation Trust and King’s College London. The work leading up to this publication was funded by the European Community’s Horizon 2020 Programme (H2020-PHC-2014-two-stage; grant 633413). We acknowledge use of the research computing facility at King’s College London, Rosalind ( https://rosalind.kcl.ac.uk ), which is delivered in partnership with the National Institute for Health Research (NIHR) Biomedical Research Centres at South London and Maudsley and Guy’s and St. Thomas’ NHS Foundation Trusts and part-funded by capital equipment grants from the Maudsley Charity (award 980) and Guy’s and St Thomas’ Charity (TR130505). The views expressed are those of the author(s) and not necessarily those of the NHS, the NIHR, King’s College London, or the Department of Health and Social Care.
Publisher Copyright:
Copyright © 2023 Adey, Cooper-Knock, Al Khleifat, Fogh, van Damme, Corcia, Couratier, Hardiman, McLaughlin, Gotkine, Drory, Silani, Ticozzi, Veldink, van den Berg, de Carvalho, Pinto, Mora Pardina, Povedano Panades, Andersen, Weber, Başak, Shaw, Shaw, Morrison, Landers, Glass, Vourc’h, Dobson, Breen, Al-Chalabi, Jones and Iacoangeli.
PY - 2023
Y1 - 2023
N2 - Introduction: Caveolin-1 and Caveolin-2 (CAV1 and CAV2) are proteins associated with intercellular neurotrophic signalling. There is converging evidence that CAV1 and CAV2 (CAV1/2) genes have a role in amyotrophic lateral sclerosis (ALS). Disease-associated variants have been identified within CAV1/2 enhancers, which reduce gene expression and lead to disruption of membrane lipid rafts. Methods: Using large ALS whole-genome sequencing and post-mortem RNA sequencing datasets (5,987 and 365 tissue samples, respectively), and iPSC-derived motor neurons from 55 individuals, we investigated the role of CAV1/2 expression and enhancer variants in the ALS phenotype. Results: We report a differential expression analysis between ALS cases and controls for CAV1 and CAV2 genes across various post-mortem brain tissues and three independent datasets. CAV1 and CAV2 expression was consistently higher in ALS patients compared to controls, with significant results across the primary motor cortex, lateral motor cortex, and cerebellum. We also identify increased survival among carriers of CAV1/2 enhancer mutations compared to non-carriers within Project MinE and slower progression as measured by the ALSFRS. Carriers showed a median increase in survival of 345 days. Discussion: These results add to an increasing body of evidence linking CAV1 and CAV2 genes to ALS. We propose that carriers of CAV1/2 enhancer mutations may be conceptualised as an ALS subtype who present a less severe ALS phenotype with a longer survival duration and slower progression. Upregulation of CAV1/2 genes in ALS cases may indicate a causal pathway or a compensatory mechanism. Given prior research supporting the beneficial role of CAV1/2 expression in ALS patients, we consider a compensatory mechanism to better fit the available evidence, although further investigation into the biological pathways associated with CAV1/2 is needed to support this conclusion.
AB - Introduction: Caveolin-1 and Caveolin-2 (CAV1 and CAV2) are proteins associated with intercellular neurotrophic signalling. There is converging evidence that CAV1 and CAV2 (CAV1/2) genes have a role in amyotrophic lateral sclerosis (ALS). Disease-associated variants have been identified within CAV1/2 enhancers, which reduce gene expression and lead to disruption of membrane lipid rafts. Methods: Using large ALS whole-genome sequencing and post-mortem RNA sequencing datasets (5,987 and 365 tissue samples, respectively), and iPSC-derived motor neurons from 55 individuals, we investigated the role of CAV1/2 expression and enhancer variants in the ALS phenotype. Results: We report a differential expression analysis between ALS cases and controls for CAV1 and CAV2 genes across various post-mortem brain tissues and three independent datasets. CAV1 and CAV2 expression was consistently higher in ALS patients compared to controls, with significant results across the primary motor cortex, lateral motor cortex, and cerebellum. We also identify increased survival among carriers of CAV1/2 enhancer mutations compared to non-carriers within Project MinE and slower progression as measured by the ALSFRS. Carriers showed a median increase in survival of 345 days. Discussion: These results add to an increasing body of evidence linking CAV1 and CAV2 genes to ALS. We propose that carriers of CAV1/2 enhancer mutations may be conceptualised as an ALS subtype who present a less severe ALS phenotype with a longer survival duration and slower progression. Upregulation of CAV1/2 genes in ALS cases may indicate a causal pathway or a compensatory mechanism. Given prior research supporting the beneficial role of CAV1/2 expression in ALS patients, we consider a compensatory mechanism to better fit the available evidence, although further investigation into the biological pathways associated with CAV1/2 is needed to support this conclusion.
KW - ALS (Amyotrophic lateral sclerosis)
KW - Cav
KW - CAV1 and CAV2
KW - caveolin
KW - differential expression analysis (DEA)
KW - enhancer variant
KW - neurodegeneration
KW - survival analysis
UR - http://www.scopus.com/inward/record.url?scp=85150359744&partnerID=8YFLogxK
U2 - 10.3389/fncel.2023.1112405
DO - 10.3389/fncel.2023.1112405
M3 - Article
AN - SCOPUS:85150359744
SN - 1662-5102
VL - 17
JO - Frontiers in cellular neuroscience
JF - Frontiers in cellular neuroscience
M1 - 1112405
ER -