Evidence map›Paper›PMID 33128578›Full record

ArticleJournal of molecular medicine (Berlin, Germany)2020

Autotaxin stimulates LPA2 receptor in macrophages and exacerbates dextran sulfate sodium-induced acute colitis.

Zi Wang, Wenjie Shi, Dean Tian, Hua Qin, Bruce A Vallance, Hyungjun Yang, Hong B Yu, Qin Yu

Abstract read
PubMed Publisher
In one paragraph

Article in Journal of molecular medicine (Berlin, Germany), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

11 citing papers in PubMed, 21 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

8 authors at 2 institutions in 2 countries.

Zi WangDepartment of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China.
Wenjie ShiDepartment of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China.
Dean TianDepartment of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China.
Hua QinDepartment of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China.
Bruce A VallanceDivision of Gastroenterology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada.
Hyungjun YangDivision of Gastroenterology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada.
Hong B YuDivision of Gastroenterology, Department of Pediatrics, BC Children's Hospital, University of British Columbia, Vancouver, BC, Canada. hby@mail.ubc.ca.
Qin YuDepartment of Gastroenterology, Tongji Hospital, Huazhong University of Science and Technology, Jiefang Avenue, 1095, 430030, Wuhan, People's Republic of China. yuqin@tjh.tjmu.edu.cn.ORCID 0000-0002-4342-9398
Tongji Hospital · CNUniversity of British Columbia · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Autotaxin (ATX) is a secreted enzyme that hydrolyzes lysophosphatidylcholine (LPC) to lysophosphatidic acid (LPA) and choline. ATX has been implicated in multiple chronic inflammatory diseases, but little is known about its role in the development of inflammatory bowel disease (IBD). Here, we investigated how ATX contributed to intestinal inflammation during colitis. We found that ATX expression levels were upregulated in the intestines of ulcerative colitis (UC) patients in acute state as well as in the intestines of dextran sulfate sodium (DSS)-induced colitis mice, which is likely due to increased infiltration of inflammatory cells including macrophages. Intriguingly, the inhibition of ATX activity led to reduced production of inflammatory cytokines, as well as attenuated colitis. These findings suggest that ATX may display strong pro-inflammatory properties. Supporting this, treatment with recombinant mouse ATX (rmATX) increased the production of inflammatory cytokines and enzymes in mouse macrophage cell line RAW264.7 and bone marrow-derived macrophages (BMDM), whereas silencing ATX by siRNA reduced LPS-stimulated production of pro-inflammatory factors. Notably, we found that the levels of LPA2 (an LPA receptor) were dramatically upregulated in rmATX-treated RAW264.7 cells and DSS-treated mice. Gene silencing of lpa2 in RAW264.7 cells by siRNA led to reduced production of inflammatory cytokines. Moreover, adenovirus-mediated delivery of lpa2 short hairpin RNA into DSS-treated mice ameliorated colitis. Collectively, our research suggests that ATX may exacerbate DSS-induced colitis by activating LPA2 receptor in macrophages and represent a promising target for the treatment of IBD. KEY MESSAGES: Increased ATX expression and secretion in colitic colons are likely due to increased infiltration of inflammatory cells including macrophages. Recombinant ATX promotes, but ATX silencing inhibits, the production of inflammatory cytokines in LPS-stimulated RAW264.7 cells and BMDM. •LPA2 mediates the pro-inflammatory effects of ATX on macrophages. Inhibition of ATX and downregulation of LPA2 ameliorate DSS-induced colitis.

Indexed as

AnimalsColitisCytokinesDextran SulfateDisease Models, AnimalDisease SusceptibilityInflammation MediatorsLysophospholipase DMacrophagesMicePhosphoric Diester HydrolasesRAW 264.7 CellsReceptors, Lysophosphatidic AcidCytokinesDextran SulfateInflammation MediatorsLysophospholipase DPhosphoric Diester HydrolasesReceptors, Lysophosphatidic AcidAutotaxinBMDMColitisLPA2RAW264.7 cells

Identifiers

PMID33128578
OpenAlexW3096174315

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.