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Open Access 09-05-2024 | Septicemia | RESEARCH

Regulation of Alternative Splicing of Lipid Metabolism Genes in Sepsis-Induced Liver Damage by RNA-Binding Proteins

Authors: Buzukela Abuduaini, Zhang Jiyuan, Aliya Rehati, Zhao Liang, Song Yunlin

Published in: Inflammation

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Abstract

RNA binding proteins (RBPs) have the potential for transcriptional regulation in sepsis-induced liver injury, but precise functions remain unclear. Our aim is to conduct a genome-wide expression analysis of RBPs and illuminate changes in the regulation of alternative splicing in sepsis-induced liver injury. RNA-seq data on “sepsis and liver” from the publicly available NCBI data set was analyzed, and differentially expressed RBPs and alternative splicing events (ASEs) in the healthy and septic liver were identified. Co-expression analyses of sepsis-regulated RBPs and ASEs were performed. Models of sepsis were established to validate hepatic RBP gene expression patterns with different treatments. Pairwise analysis of gene expression profiles of sham, cecum ligation puncture (CLP), and CLP with dichloroacetate (CLPDCA) mice allowed 1208 differentially expressed genes (DEGs), of which 800 were up-regulated and 408 down-regulated, to be identified. DEGs were similar in both Sham and CLPDCA mice. The KEGG analysis showed that up-regulated genes as being involved in cytokine-cytokine receptor interaction and IL-17 signaling pathway and down-regulated genes in metabolic pathways. Differences in lipid metabolism–related alternative splicing events, including A3SS, were also found in CLP and CLPDCA compared with sham mice. Thirty-seven RBPs, including S100a11, Ads2, Fndc3b, Fn1, Ddx28, Car2, Cisd1, and Ptms, were differentially expressed in CLP mice and the regulated alternative splicing genes(RASG) with the RBP shown to be enriched in lipid metabolic and oxidation-reduction-related processes by GO functional analysis. In KEEG analysis the RASG mainly enriched in metabolic pathway. The models of sepsis were constructed with different treatment groups, and S100a11 expression in the CLP group found to be higher than in the sham group, a change that was reversed by DCA. The alternative splicing ratio of Srebf1 and Cers2 decreased compared with the sham group increased after DCA treatment. Abnormal profiles of gene expression and alternative splicing were associated with sepsis-induced liver injury. Unusual expression of RBPs, such as S100a11, may regulate alternative splicing of lipid metabolism–associated genes, such as Srebf1 and Cers2, in the septic liver. RBPs may constitute potential treatment targets for sepsis-induced liver injury.
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Metadata
Title
Regulation of Alternative Splicing of Lipid Metabolism Genes in Sepsis-Induced Liver Damage by RNA-Binding Proteins
Authors
Buzukela Abuduaini
Zhang Jiyuan
Aliya Rehati
Zhao Liang
Song Yunlin
Publication date
09-05-2024
Publisher
Springer US
Published in
Inflammation
Print ISSN: 0360-3997
Electronic ISSN: 1573-2576
DOI
https://doi.org/10.1007/s10753-024-02017-2
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Developed by: Springer Medicine
Webinar | 06-02-2024 | 20:00 (CET)

Mastering chronic pancreatitis pain: A multidisciplinary approach and practical solutions

Severe pain is the most common symptom of chronic pancreatitis. In this webinar, experts share the latest insights in pain management for chronic pancreatitis patients. Experts from a range of disciplines discuss pertinent cases and provide practical suggestions for use within clinical practice.

Sponsored by: Viatris

Developed by: Springer Healthcare
Live Webinar | 01-10-2024 | 12:30 (CEST)

Recent advances in the use of CAR T-cell therapies in relapsed/refractory diffuse large B-cell lymphoma and follicular lymphoma

Live: Tuesday 1st October 2024, 12:30-14:00 (CEST)

In this live webinar, Professor Martin Dreyling and an esteemed, international panel of CAR-T experts will discuss the very latest data on the safety, efficacy and clinical impact of CAR T-cell therapies in the treatment of r/r DLBCL and r/r FL, as presented at ASH 2023, EU CAR-T 2024, and EHA 2024. 

Please note, this webinar is not intended for healthcare professionals based in the US and UK.

Sponsored by: Novartis Pharma AG

Chaired by: Prof. Martin Dreyling
Developed by: Springer Healthcare