Evidence map›Paper›PMID 38124204›Full record

ArticleJournal of translational medicine2023

ALOX5 acts as a key role in regulating the immune microenvironment in intrahepatic cholangiocarcinoma, recruiting tumor-associated macrophages through PI3K pathway.

Jialu Chen, Yue Tang, Delong Qin, Xiaopeng Yu, Huanjun Tong, Chengwei Tang, Zhaohui Tang

Open access · goldAbstract read
In one paragraph

Article in Journal of translational medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
7.9field-weighted citation impact, top 2% 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

18 citing papers in PubMed, 25 citations in OpenAlex.

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  13. Role of the USP family in autophagy regulation and cancer progression.Apoptosis : an international journal on programmed cell death · 2025
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  17. Identification and validation of an immune-derived multiple programmed cell death index for predicting clinical outcomes, molecular subtyping, and drug sensitivity in lung adenocarcinoma.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2024
    Article
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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

7 authors at 1 institution in 1 country.

Jialu ChenDepartment of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China.
Yue TangDepartment of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China.
Delong QinDepartment of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China.
Xiaopeng YuDepartment of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China.
Huanjun TongDepartment of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China.
Chengwei TangDepartment of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China.
Zhaohui TangDepartment of General Surgery, Xinhua Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, 200092, China. tzh1236@163.com.ORCID 0000-0002-2903-8008
Shanghai Jiao Tong University · CN

Funding

National Natural Science Foundation of China 81772521
6 · The paper itself

Abstract

backgroundIntrahepatic cholangiocarcinoma (ICC) is poorly treated due to the presence of an inhibitory immune microenvironment. Tumor-associated macrophages (TAM) are an important component of TME. ALOX5 is an important lipid metabolism enzyme in cancer progression, but the mechanism by which it regulates TAM to promote ICC progression is unknown. The aim of this study was to investigate the potential mechanism of TAM regulation by ALOX5 and the translational effect of targeting ALOX5.

methodsIn this study, we investigated the association between the spatial localization of epithelial cells and TAMs by combining scRNA-seq analysis with multiplex immunofluorescence analysis. Through bulk sequencing analysis and spatial analysis, lipid metabolism genes closely related to TAM infiltration were screened. In vitro co-culture model was constructed to verify that ALOX5 and its downstream metabolite LTB4 promote M2 macrophage migration. Bulk sequencing after co-culture combined with single-cell analysis was performed to identify key pathways for up-regulation of M2 macrophage migration. Finally, the effect of CSF1R inhibitor (PLX3397) combined with ALOX5 inhibitor (Zileuton) in vivo was investigated by by xenograft tumor formation experiment in nude mice.

resultsALOX5 in ICC cells was a key lipid metabolism gene affecting the infiltration of M2 macrophages in TME. Mechanically, LTB4, a metabolite downstream of ALOX5, recruited M2 macrophages to migrate around tumor cells by binding to BLT1/BLT2 and activating the PI3K pathway, which ultimately lead to the promotion of ICC progression. Targeting CSF1R in combination with ALOX5 inhibitor effectively reduced tumor volume and M2 macrophage infiltration abundance.

conclusionIn ICC, LTB4, a metabolite secreted by ALOX5 of epithelial cells, binded to BLT1/BLT2 on TAM surface to activate PI3K pathway and promote TAM migration, thus promoting ICC progression. Targeting CSF1R in combination with ALOX5 inhibitor for ICC is a promising combination therapy modality.

Indexed as

CholangiocarcinomaPhosphatidylinositol 3-KinasesAnimalsArachidonate 5-LipoxygenaseCell Line, TumorHumansLeukotriene B4MiceMice, NudeTumor-Associated MacrophagesTumor MicroenvironmentALOX5 protein, humanArachidonate 5-LipoxygenaseLeukotriene B4Phosphatidylinositol 3-KinasesIntrahepatic cholangiocarcinomaLipid metabolismSingle-cell analysisTumor-associated macrophagesTumor microenvironment

Identifiers

PMID38124204
PMCPMC10734103
OpenAlexW4389992496

What OpenQuestion holds

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LicenceCC BY
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.