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Histone arginine methyltransferase CARM1-mediated H3R26me2 is essential for morula-to-blastocyst transition in pigs

ABSTRACT: we show that CARM1 specifically catalyzes H3R26me2 to promote porcine blastocyst formation. The putative histone substrates of CARM1, including H3R2me2, H3R17me2, and H3R26me2, are present in pig early embryos

ORGANISM(S): Sus scrofa

PROVIDER: GSE173965 | GEO | 2021/05/06

REPOSITORIES: GEO

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Histone Arginine Methyltransferase CARM1-Mediated H3R26me2 Is Essential for Morula-to-Blastocyst Transition in Pigs.

Project description:Coactivator-associated arginine methyltransferase 1 (CARM1) is involved in both establishment of first pluripotent lineage and pluripotency maintenance of embryonic stem cells (ESCs) in mice. However, the histone substrates and role of CARM1 in early embryonic development remain largely unknown. Here, we show that CARM1 specifically catalyzes H3R26me2 to promote porcine blastocyst formation. The putative histone substrates of CARM1, including H3R2me2, H3R17me2, and H3R26me2, are present in pig early embryos. The changes of CARM1 mRNA during early embryogenesis parallel that of H3R26me2. Functional studies using a combinational approach of chemical inhibition and RNA interference (RNAi) showed that catalytic activity inhibition of CARM1 protein or knockdown (KD) of CARM1 mRNA did not alter the levels of both H3R2me2 and H3R17me2, but significantly reduced H3R26me2 levels in porcine embryos. Furthermore, CARM1 inhibition or KD did not affect embryo development to the 2-cell, 4-cell, 8-cell, and morula stages, but severely compromised blastocyst development. CARM1 knocked down embryos that developed to the blastocyst stage had fewer total cells, inner cell mass (ICM), and trophectoderm (TE) cells. Mechanistically, single embryo RNA-sequencing analysis revealed that CARM1 KD altered the transcriptome characterized by downregulation of key genes associated with Hippo and PI3K-AKT signaling pathways. Taken together, these results demonstrate that CARM1 specifically catalyzes H3R26me2 in porcine embryos and participates in blastocyst development.

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Histone arginine methyltransferase CARM1-mediated H3R26me2 is essential for morula-to-blastocyst transition in pigs

Project description:Histone arginine methyltransferase CARM1-mediated H3R26me2 is essential for morula-to-blastocyst transition in pigs

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Epigenetic regulation of cardiac maturation by arginine methyltransferase Carm1 (RNA-Seq)

Project description:Genome-wide transcriptome analysis of the neonatal control and Carm1 mutant hearts

2023-12-26 | GSE197196 | GEO

Epigenetic regulation of cardiac maturation by arginine methyltransferase Carm1 (ATAC-Seq)

Project description:Analysis of genome-wide chromatin accessibility of the neonatal control and Carm1 mutant hearts

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Histone arginine methyltransferase CARM1 Is Crucial for Epigenetic Regulation of Starvation-induced Autophagy

Project description:Autophagy is a highly conserved self-digestion process, essential to maintain homeostasis and viability in response to nutrient starvation. Although the components of autophagy in the cytoplasm have been well-studied, molecular basis for the epigenetic regulation of autophagy is poorly understood. Here, we identify histone arginine methyltransferase CARM1 as a critical component of autophagy. We found that nutrient starvation increased CARM1 protein level and subsequently histone H3R17 dimethylation. Genome-wide analyses reveal that CARM1 exerts transcriptional coactivator function on autophagy-related genes and lysosomal genes through TFEB. Our findings demonstrate a previously unrecognized role of CARM1-dependent histone arginine methylation as a critical nuclear event of autophagy.

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Epigenetic regulation of cardiac maturation by arginine methyltransferase Carm1 [RNA-Seq 2]

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BACH1 deficiency impedes differentiation of vascular smooth muscle cell from hESCs via reducing the CARM1-catalyzed H3R17me2

Project description:Vascular smooth muscle cells (VSMCs) derived from human embryonic stem cells (hESCs) have been considered as a potential therapeutic application in vascular diseases. The transcription factor BTB and CNC homology 1 (BACH1) participates in stem cell development and has an increased expression during the VSMCs differentiation process. Knockout of BACH1 inhibits the differentiation of hESCs into VSMCs, whereas overexpression of BACH1 promotes VSMCs differentiation after the mesoderm stage. Mechanistically, BACH1 interacts with Coactivator-associated arginine methyltransferase 1 (CARM1) in a bZIP domain-dependent manner. BACH1 recruits CARM1 and its specific histone mark H3R17me2 to VSMC marker genes promoters, thus up-regulating target gene expression. BACH1-induced promotion of VSMC marker genes was partially abolished by the knockdown of CARM1 or H3R17me2. Thus, our results demonstrate the regulatory role of BACH1 and CARM1 in VSMCs differentiation.

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The arginine methyltransferase CARM1 represses p300•ACT•CREMt axis and is required for spermiogenesis

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Arginine methyltransferase CARM1/PRMT4 regulates endochondral ossification.

Project description:BackgroundChondrogenesis and subsequent endochondral ossification are processes tightly regulated by the transcription factor Sox9 (SRY-related high mobility group-Box gene 9), but molecular mechanisms underlying this activity remain unclear. Here we report that coactivator-associated arginine methyltransferase 1 (CARM1) regulates chondrocyte proliferation via arginine methylation of Sox9.ResultsCARM1-null mice display delayed endochondral ossification and decreased chondrocyte proliferation. Conversely, cartilage development of CARM1 transgenic mice was accelerated. CARM1 specifically methylates Sox9 at its HMG domain in vivo and in vitro. Arg-methylation of Sox9 by CARM1 disrupts interaction of Sox9 with beta-catenin, regulating Cyclin D1 expression and cell cycle progression of chondrocytes.ConclusionThese results establish a role for CARM1 as an important regulator of chondrocyte proliferation during embryogenesis.

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Epigenetic regulation of cardiac maturation by arginine methyltransferase Carm1

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