Nature communications · 2024
A genetic-epigenetic interplay at 1q21.1 locus underlies CHD1L-mediated vulnerability to primary progressive multiple sclerosis.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод в очереди
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Pahlevan Kakhki Majid, Giordano Antonino, Starvaggi Cucuzza Chiara, Venkata S Badam Tejaswi, Samudyata Samudyata, Lemée Marianne Victoria, Stridh Pernilla, Gkogka Asimenia, Shchetynsky Klementy, Harroud Adil, Gyllenberg Alexandra, Liu Yun, Boddul Sanjaykumar, James Tojo, Sorosina Melissa, Filippi Massimo, Esposito Federica, Wermeling Fredrik, Gustafsson Mika, Casaccia Patrizia, Hillert Jan, Olsson Tomas, Kockum Ingrid, Sellgren Carl M, Golzio Christelle, Kular Lara, Jagodic Maja
Аннотация
Multiple Sclerosis (MS) is a heterogeneous inflammatory and neurodegenerative disease with an unpredictable course towards progressive disability. Treating progressive MS is challenging due to limited insights into the underlying mechanisms. We examined the molecular changes associated with primary progressive MS (PPMS) using a cross-tissue (blood and post-mortem brain) and multilayered data (genetic, epigenetic, transcriptomic) from independent cohorts. In PPMS, we found hypermethylation of the 1q21.1 locus, controlled by PPMS-specific genetic variations and influencing the expression of proximal genes (CHD1L, PRKAB2) in the brain. Evidence from reporter assay and CRISPR/dCas9 experiments supports a causal link between methylation and expression and correlation network analysis further implicates these genes in PPMS brain processes. Knock-down of CHD1L in human iPSC-derived neurons and knock-out of chd1l in zebrafish led to developmental and functional deficits of neurons. Thus, several lines of evidence suggest a distinct genetic-epigenetic-transcriptional interplay in the 1q21.1 locus potentially contributing to PPMS pathogenesis.