Evidence map›Paper›PMID 42572499›Full record

ArticleCanadian journal of gastroenterology & hepatology2026

GPR39 Suppresses Ferroptosis via the Nrf2/SLC7A11 Axis and Reduces the Sensitivity of Colorectal Cancer to Anti-PD-1 Immunotherapy.

Cong Zhou, Xiaoling Fang, Jiaying Lin, Xiang Jiang, Huihui Li, Jiaoe Chen, Qiang Chen

Abstract read
In one paragraph

Article in Canadian journal of gastroenterology & hepatology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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.

Cong ZhouDepartment of Gastroenterology, Sanmen People's Hospital, Sanmen, Taizhou 317100, Zhejiang, China, zjsmyy.com.
Xiaoling FangDepartment of Gastroenterology, Sanmen People's Hospital, Sanmen, Taizhou 317100, Zhejiang, China, zjsmyy.com.
Jiaying LinDepartment of Gastroenterology, Sanmen People's Hospital, Sanmen, Taizhou 317100, Zhejiang, China, zjsmyy.com.
Xiang JiangDepartment of Gastroenterology, Sanmen People's Hospital, Sanmen, Taizhou 317100, Zhejiang, China, zjsmyy.com.
Huihui LiDepartment of Gastroenterology, Sanmen People's Hospital, Sanmen, Taizhou 317100, Zhejiang, China, zjsmyy.com.
Jiaoe ChenDepartment of Gastroenterology, Sanmen People's Hospital, Sanmen, Taizhou 317100, Zhejiang, China, zjsmyy.com.ORCID https://orcid.org/0009-0007-6618-4753
Qiang ChenDepartment of Gastroenterology, Sanmen People's Hospital, Sanmen, Taizhou 317100, Zhejiang, China, zjsmyy.com.ORCID https://orcid.org/0009-0005-7017-9805

Funding

Zhejiang Medical and Health Science and Technology Plan 2024XY092
6 · The paper itself

Abstract

backgroundPD-1 blockade has yet to achieve broad clinical success in colorectal cancer (CRC), with microsatellite-stable tumors proving especially resistant. At the same time, ferroptosis has emerged as a mechanistic link between redox control in tumor cells and the antitumor immune response. GPR39 is overexpressed in CRC, but its functional role in ferroptosis and immunotherapy resistance is currently unclear.

methodsGPR39 expression was analyzed in human and mouse CRC cell lines. GPR39 knockdown, with or without the ferroptosis inhibitor liproxstatin-1, was performed to determine whether GPR39 regulates CRC cell proliferation and migration through ferroptosis. Ferroptosis was evaluated by measuring lipid peroxidation, glutathione (GSH) levels, ferrous iron (Fe

resultsGPR39 was markedly upregulated in CRC cell lines. GPR39 knockdown induced ferroptosis, characterized by increased lipid peroxidation, Fe

conclusionGPR39 suppresses ferroptosis in CRC via the Nrf2/SLC7A11 axis, thereby limiting PD-1 immunotherapy efficacy.

Indexed as

Amino Acid Transport System y+Colorectal NeoplasmsFerroptosisImmune Checkpoint InhibitorsNF-E2-Related Factor 2Programmed Cell Death 1 ReceptorReceptors, G-Protein-CoupledAnimalsCell Line, TumorCell MovementCell ProliferationHumansImmunotherapyMiceSignal TransductionAmino Acid Transport System y+Immune Checkpoint InhibitorsNFE2L2 protein, humanNF-E2-Related Factor 2PDCD1 protein, humanProgrammed Cell Death 1 ReceptorReceptors, G-Protein-CoupledSLC7A11 protein, humancolorectal cancerferroptosisGPR39Nrf2/SLC7A11 axisPD-1 immunotherapy

Identifiers

PMID42572499
PMCPMC13454788

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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.