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A Preliminary Study of KAT2A on CGAS-related Immunity in Inflammation Amplification of Systemic Lupus Erythematosus

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Journal Cell Death Dis
Date 2021 Oct 31
PMID 34718330
Citations 4
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Abstract

Previous studies demonstrated that cGAS pathway is related to the inflammation amplification in a variety of autoimmune diseases. Lysine acetyltransferase family (KATs) can regulate the nuclear transcription or cytoplasmic activation of cGAS through different mechanisms. However, its role and related immunity patterns in systemic lupus erythematosus (SLE) have not been explored. In this study, RNA-seq and scRNA-seq profiling were performed for peripheral blood mononuclear cells (PBMCs) from patients with SLE. R packages were used for bioinformatic analysis. Cell culture, RT-PCR, western blotting, immunofluorescence, immunohistochemistry, and ELISA were used to explore gene expression in vitro or clinical specimens. Plasmid transfection and mass spectrometry were used to detect protein modifications. Eight acetyltransferase and deacetylase family members with significantly differential expression in SLE were found. Among them, KAT2A was abnormally upregulated and positively correlated with disease activity index. Further, KAT2A-cGAS pathway was aberrantly expressed in specific immune cell subsets in SLE. In vitro studies showed KAT2A modulated cGAS through increasing expression and post-translational modification. Our research provides novel insights for accurately positioning specific immune-cell subgroups in which KAT2A-cGAS reaction mainly works and KAT2A regulation patterns.

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References
1.
Paolinelli R, Mendoza-Maldonado R, Cereseto A, Giacca M . Acetylation by GCN5 regulates CDC6 phosphorylation in the S phase of the cell cycle. Nat Struct Mol Biol. 2009; 16(4):412-20. DOI: 10.1038/nsmb.1583. View

2.
Gao D, Li T, Li X, Chen X, Li Q, Wight-Carter M . Activation of cyclic GMP-AMP synthase by self-DNA causes autoimmune diseases. Proc Natl Acad Sci U S A. 2015; 112(42):E5699-705. PMC: 4620884. DOI: 10.1073/pnas.1516465112. View

3.
Kumar V . A STING to inflammation and autoimmunity. J Leukoc Biol. 2019; 106(1):171-185. DOI: 10.1002/JLB.4MIR1018-397RR. View

4.
Guthridge J, Lu R, Tran L, Arriens C, Aberle T, Kamp S . Adults with systemic lupus exhibit distinct molecular phenotypes in a cross-sectional study. EClinicalMedicine. 2020; 20():100291. PMC: 7058913. DOI: 10.1016/j.eclinm.2020.100291. View

5.
Sandoz J, Nagy Z, Catez P, Caliskan G, Geny S, Renaud J . Functional interplay between TFIIH and KAT2A regulates higher-order chromatin structure and class II gene expression. Nat Commun. 2019; 10(1):1288. PMC: 6426930. DOI: 10.1038/s41467-019-09270-2. View