Evidence map›Paper›PMID 41436455›Full record

ArticleNature communications2025

GPR4 promotes immune exclusion in colon cancer through LOXL2-mediated extracellular matrix remodeling.

Shuheng Bai, Min Chen, Xuan Wang, Ning Lan, Ruijie Meng, Yanli Yan, Wanyi Liu, Wenyang Li, Fang Wu, Xiangxiang Zhang and 3 more

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Targeting the Barriers Driving Immune Exclusion.Pharmaceuticals (Basel, Switzerland) · 2026
    Review
  5. Review
  6. Article
  7. Review
  8. Review
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

13 authors.

Shuheng BaiDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Min ChenDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Xuan WangDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Ning LanDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Ruijie MengDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Yanli YanDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Wanyi LiuDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Wenyang LiDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Fang WuDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Xiangxiang ZhangDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Fengyuan HuDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Rong LiDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
Juan RenDepartment of Radiotherapy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China. 869491533@qq.com.ORCID http://orcid.org/0000-0002-8360-8286

Funding

National Natural Science Foundation of China (National Science Foundation of China) 81772793
6 · The paper itself

Abstract

Immune exclusion is associated with adverse prognosis in tumors, and this phenomenon may be facilitated by a physical barrier constituted by the extracellular matrix (ECM). Hypoxia and acidity promote immune exclusion, however the detailed mechanism remains unclear. This study demonstrate that G-protein-coupled-receptor-4 (GPR4), as a proton sensor, induces immune exclusion in colon cancer by promoting collagen fiber alignment and deposition. Specifically, GPR4 facilitates collagen alignment via LOXL2 regulation and enhances collagen I by modulating TGF-β, both mediated by the JAK2/STAT3 pathway. We further validate our findings in a male animal model, observing that elevated GPR4 expression in colon cancer results in an immune-excluded microenvironment. Inhibition of the JAK2/STAT3 pathway and LOXL2 function effectively reverse immune exclusion and enhance immunotherapy efficacy. Collectively, our findings elucidate a mechanism of immune exclusion and propose a potential target for improving the therapeutic efficacy of immunotherapy through the remodeling of the tumor ECM.

Indexed as

Amino Acid OxidoreductasesColonic NeoplasmsExtracellular MatrixReceptors, G-Protein-CoupledAnimalsCell Line, TumorGene Expression Regulation, NeoplasticHumansImmunotherapyMaleMiceMice, Inbred BALB CSignal TransductionSTAT3 Transcription FactorTumor MicroenvironmentAmino Acid OxidoreductasesGPR4 protein, humanLOXL2 protein, humanReceptors, G-Protein-CoupledSTAT3 Transcription Factor

Identifiers

PMID41436455
PMCPMC12859139

What OpenQuestion holds

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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.