Evidence map›Paper›PMID 41559695›Full record

ArticleCell communication and signaling : CCS2026

Identification of the E3 ligase TRIM21 as a crucial regulator of STAT1 in metabolic dysfunction-associated steatohepatitis.

Xun-Xun Chen, Hui-Ting Shi, Li-Li Xiao, Huan Li, Bin-Bin Du, Zhen Huang, Dian-Hong Zhang, Lei-Ming Wu, Li-Na Wu, Jie-Lei Zhang

Abstract read
In one paragraph

Article in Cell communication and signaling : CCS, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Xun-Xun Chen *Department of Endocrinology and Metabolism, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China.
Hui-Ting Shi *Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China.
Li-Li Xiao *Cardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China.
Huan LiCardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China.
Bin-Bin DuCardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China.
Zhen HuangCardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China.
Dian-Hong ZhangCardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China.
Lei-Ming WuCardiovascular Hospital, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China. wyzsrjy1983@163.com.
Li-Na WuDepartment of Endocrinology and Metabolism, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China. wulina1999@126.com.
Jie-Lei ZhangDepartment of Endocrinology and Metabolism, the First Affiliated Hospital of Zhengzhou University, Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, Henan, 450052, China. zhangjielei514@126.com.

Funding

Medical Science and Technology Program of Henan Province SBGJ 202302047Medical Science and Technology Program of Henan Province SBGJ 202302069The National Natural Science Foundation of China 82000826
6 · The paper itself

Abstract

BACKGROUND AND

aimsMetabolic associated fatty liver disease (MAFLD) is closely associated with metabolic disorders, including central obesity, dyslipidaemia, hypertension, hyperglycaemia and persistent abnormalities of liver function tests. Metabolic dysfunction-associated steatohepatitis (MASH) is a progressive form of MAFLD, characterized by chronic inflammation and accumulation of fat in liver tissue. Currently, no pharmacological interventions specifically tailored for MASH are approved. Signal transducer and activator of transcription 1 (STAT1) is the key transcription factor of the JAK-STAT signaling pathway, participating in physiological and pathological processes such as immune regulation, inflammatory response, antiviral defense, cell proliferation and apoptosis, and plays an important regulatory role in the occurrence and development of MASH. However, the post-translational modification of STAT1 in MASH is unclarified. METHODS AND

resultsWe identified that STAT1 was increased in MASH due to the inhibition of ubiquitination levels. Mechanistically, we showed that TRIM21 directly binds to STAT1 and promotes STAT1 degradation by accelerating lysine residue at 48 site-linked ubiquitination. Through gain- and loss-of-function studies in Trim21 knockout mice and adenovirus-treated models (in vivo and in vitro), we further demonstrated TRIM21's protective role in MASH. Collectively, our investigations have revealed that TRIM21 suppresses hepatocyte steatosis relying on regulating STAT1.

conclusionThe ubiquitination of STAT1 in MASH is regulated by TRIM21 which is a key suppressor of MASH. TRIM21 acts as a negative regulator in hepatic steatosis and offers potential therapeutic opportunities for MASH.

Indexed as

Fatty LiverSTAT1 Transcription FactorAnimalsHumansMiceMice, Inbred C57BLMice, KnockoutSS-A AntigenTRIM21 ProteinUbiquitinationSS-A AntigenSTAT1 Transcription FactorTRIM21 ProteinMetabolic Dysfunction-Associated SteatohepatitisSignal Transducer and Activator of Transcription 1Tripartite motif-containing protein 21Ubiquitination

Identifiers

PMID41559695
PMCPMC12908364

What Socratic holds

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.