Evidence map›Paper›PMID 34611503›Full record

ArticlePeerJ2021

Glucosylceramide synthase regulates hepatocyte repair after concanavalin A-induced immune-mediated liver injury.

Jian Gan, Qin Gao, Li Li Wang, Ai Ping Tian, Long Dong Zhu, Li Ting Zhang, Wei Zhou, Xiao Rong Mao, Jun Feng Li

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.6field-weighted citation impact, top 33% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed, 7 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 2 institutions in 1 country.

Jian GanThe First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.
Qin GaoPhysical Examination Center, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
Li Li WangDepartment of Radiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
Ai Ping TianDepartment of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
Long Dong ZhuDepartment of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
Li Ting ZhangDepartment of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
Wei ZhouInstitute of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
Xiao Rong MaoThe First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.
Jun Feng LiThe First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China.
Lanzhou University · CNFirst Hospital of Lanzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundSphingolipids produce pleiotropic signaling pathways, and participate in the pathological mechanism of hepatocyte apoptosis and necrosis during liver injury. However, the role of glucosylceramide synthase (GCS)-key enzyme that catalyzes the first glycosylation step, in liver injury is still vague.

methodsAll experiments were conducted using 7-9-week-old pathogen-free male C57BL/6 mice. Serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) levels were detected in murine models of liver disease, in addition to histological characterization of liver injuries. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to detect the relative expression of the GCS, matrix metallopeptidase-1 (MMP-1), and tissue inhibitor of metalloproteinase-1 (TIMP-1) genes. The GCS was observed through a fluorescence microscope, and the flow cytometry was used to detect hepatocyte apoptosis. The concentrations of serum IL-4, IL-6, and IL-10 were measured using enzyme-linked immune-sorbent assay (ELISA) kit. MMP-1 and TIMP-1 protein expression was measured via western blot (WB) analysis.

resultsCon A is often used as a mitogen to activate T lymphocytes and promote mitosis. A single dose of Con A injected intravenously will cause a rapid increase of ALT and AST, which is accompanied by the release of cytokines that cause injury and necrosis of hepatocytes. In this study, we successfully induced acute immune hepatitis in mice by Con A. Con A administration resulted in GCS upregulation in liver tissues. Moreover, the mice in the Con A group had significantly higher levels of ALT, AST, IL-4, IL-6, IL-10 and increased hepatocyte apoptosis than the control group. In contrast, all of the aforementioned genes were significantly downregulated after the administration of a GCS siRNA or Genz-123346 (

conclusionsGCS inhibition reduces Con A-induced immune-mediated liver injury in mice, which may be due to the involvement of GCS in the hepatocyte repair process after injury.

Indexed as

Concanavalin AGlucosylceramide synthaseGlycosphingolipidLiver injuryUDP-glucose ceramide glucosyltransferase

Identifiers

PMID34611503
PMCPMC8447939
OpenAlexW3201026135

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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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 OpenQuestion graph.