Disease-associated astrocyte epigenetic memory promotes CNS pathology

© 2024. The Author(s), under exclusive licence to Springer Nature Limited..

Disease-associated astrocyte subsets contribute to the pathology of neurologic diseases, including multiple sclerosis and experimental autoimmune encephalomyelitis1-8 (EAE), an experimental model for multiple sclerosis. However, little is known about the stability of these astrocyte subsets and their ability to integrate past stimulation events. Here we report the identification of an epigenetically controlled memory astrocyte subset that exhibits exacerbated pro-inflammatory responses upon rechallenge. Specifically, using a combination of single-cell RNA sequencing, assay for transposase-accessible chromatin with sequencing, chromatin immunoprecipitation with sequencing, focused interrogation of cells by nucleic acid detection and sequencing, and cell-specific in vivo CRISPR-Cas9-based genetic perturbation studies we established that astrocyte memory is controlled by the metabolic enzyme ATP-citrate lyase (ACLY), which produces acetyl coenzyme A (acetyl-CoA) that is used by histone acetyltransferase p300 to control chromatin accessibility. The number of ACLY+p300+ memory astrocytes is increased in acute and chronic EAE models, and their genetic inactivation ameliorated EAE. We also detected the pro-inflammatory memory phenotype in human astrocytes in vitro; single-cell RNA sequencing and immunohistochemistry studies detected increased numbers of ACLY+p300+ astrocytes in chronic multiple sclerosis lesions. In summary, these studies define an epigenetically controlled memory astrocyte subset that promotes CNS pathology in EAE and, potentially, multiple sclerosis. These findings may guide novel therapeutic approaches for multiple sclerosis and other neurologic diseases.

Errataetall:

UpdateOf: bioRxiv. 2024 Jan 05;:. - PMID 38260616

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:627

Enthalten in:

Nature - 627(2024), 8005 vom: 11. März, Seite 865-872

Sprache:

Englisch

Beteiligte Personen:

Lee, Hong-Gyun [VerfasserIn]
Rone, Joseph M [VerfasserIn]
Li, Zhaorong [VerfasserIn]
Akl, Camilo Faust [VerfasserIn]
Shin, Seung Won [VerfasserIn]
Lee, Joon-Hyuk [VerfasserIn]
Flausino, Lucas E [VerfasserIn]
Pernin, Florian [VerfasserIn]
Chao, Chun-Cheih [VerfasserIn]
Kleemann, Kilian L [VerfasserIn]
Srun, Lena [VerfasserIn]
Illouz, Tomer [VerfasserIn]
Giovannoni, Federico [VerfasserIn]
Charabati, Marc [VerfasserIn]
Sanmarco, Liliana M [VerfasserIn]
Kenison, Jessica E [VerfasserIn]
Piester, Gavin [VerfasserIn]
Zandee, Stephanie E J [VerfasserIn]
Antel, Jack P [VerfasserIn]
Rothhammer, Veit [VerfasserIn]
Wheeler, Michael A [VerfasserIn]
Prat, Alexandre [VerfasserIn]
Clark, Iain C [VerfasserIn]
Quintana, Francisco J [VerfasserIn]

Links:

Volltext

Themen:

72-89-9
ATP Citrate (pro-S)-Lyase
Acetyl Coenzyme A
Chromatin
EC 2.3.1.48
EC 2.3.3.8
EC 2.7.7.-
Journal Article
P300-CBP-associated factor
Transposases

Anmerkungen:

Date Completed 29.03.2024

Date Revised 25.04.2024

published: Print-Electronic

UpdateOf: bioRxiv. 2024 Jan 05;:. - PMID 38260616

Citation Status MEDLINE

doi:

10.1038/s41586-024-07187-5

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369989562