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PAD2-Mediated Citrullination Contributes to Efficient Oligodendrocyte Differentiation and Myelination.

Cell reports | 2019

Citrullination, the deimination of peptidylarginine residues into peptidylcitrulline, has been implicated in the etiology of several diseases. In multiple sclerosis, citrullination is thought to be a major driver of pathology through hypercitrullination and destabilization of myelin. As such, inhibition of citrullination has been suggested as a therapeutic strategy for MS. Here, in contrast, we show that citrullination by peptidylarginine deiminase 2 (PAD2) contributes to normal oligodendrocyte differentiation, myelination, and motor function. We identify several targets for PAD2, including myelin and chromatin-related proteins, implicating PAD2 in epigenomic regulation. Accordingly, we observe that PAD2 inhibition and its knockdown affect chromatin accessibility and prevent the upregulation of oligodendrocyte differentiation genes. Moreover, mice lacking PAD2 display motor dysfunction and a decreased number of myelinated axons in the corpus callosum. We conclude that citrullination contributes to proper oligodendrocyte lineage progression and myelination.

Pubmed ID: 31018126 RIS Download

Research resources used in this publication

Associated grants

  • Agency: NINDS NIH HHS, United States
    Id: R01 NS052738
  • Agency: NINDS NIH HHS, United States
    Id: R37 NS042925
  • Agency: NIH HHS, United States
    Id: UM1 OD023221

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RRID:AB_10622025

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View all literature mentions

Histone H3 (citrulline 2 + 8 + 17) antibody - ChIP Grade (antibody)

RRID:AB_304752

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View all literature mentions

Myelin Basic Protein (SMI 99) Monoclonal Antibody, Purified (antibody)

RRID:AB_10120129

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View all literature mentions

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RRID:SCR_011841

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View all literature mentions

Myelin Basic Protein (SMI 99) Monoclonal Antibody, Purified (antibody)

RRID:AB_10120129

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View all literature mentions

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RRID:SCR_003032

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View all literature mentions

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RRID:AB_244359

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View all literature mentions

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RRID:AB_2737788

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View all literature mentions

B6.129S4-Pdgfratm11(EGFP)Sor/J (organism)

RRID:IMSR_JAX:007669

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View all literature mentions

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View all literature mentions

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RRID:SCR_007358

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RRID:IMSR_JAX:003800

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View all literature mentions

Padi2tm1a(KOMP)Wtsi (organism)

RRID:IMSR_KOMP:CSD29542-1a-Wtsi

gene symbol note: peptidyl arginine deiminase, type II mutant strain targeted mutation 1a, Wellcome Trust Sanger Institute This is a legacy resource.

View all literature mentions

Oli-neu (cell line)

RRID:CVCL_IZ82

Cell line Oli-neu is a Transformed cell line with a species of origin Mus musculus (Mouse)

View all literature mentions

STOCK Gt(ROSA)26Sortm1.1(CAG-EGFP)Fsh/Mmjax (organism)

RRID:MMRRC_032037-JAX

Mus musculus with name STOCK Gt(ROSA)26Sortm1.1(CAG-EGFP)Fsh/Mmjax from MMRRC.

View all literature mentions

PeakAnalyzer (software resource)

RRID:SCR_001194

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View all literature mentions

MACS (software resource)

RRID:SCR_013291

Software Python package for identifying transcript factor binding sites. Used to evaluate significance of enriched ChIP regions. Improves spatial resolution of binding sites through combining information of both sequencing tag position and orientation. Can be used for ChIP-Seq data alone, or with control sample with increase of specificity.

View all literature mentions

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RRID:SCR_002798

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View all literature mentions

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RRID:SCR_014485

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View all literature mentions

Picard (software toolkit)

RRID:SCR_006525

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View all literature mentions

BEDTools (software resource)

RRID:SCR_006646

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View all literature mentions

Fiji (software resource)

RRID:SCR_002285

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View all literature mentions

cutadapt (software resource)

RRID:SCR_011841

Software tool that removes adapter sequences from DNA sequencing reads.

View all literature mentions

Bowtie (software resource)

RRID:SCR_005476

Software ultrafast memory efficient tool for aligning sequencing reads. Bowtie is short read aligner.

View all literature mentions

Deeptools (software resource)

RRID:SCR_016366

Python based tools to process, visualize and analyse high-throughput sequencing data, such as ChIP-seq, RNA-seq or MNase-seq. Implemented within Galaxy framework. Used to perform complete bioinformatic workflows ranging from quality controls and normalizations of aligned reads to integrative analyses, including clustering and visualization approaches.

View all literature mentions