Evidence map›Paper›PMID 42422226›Full record

ArticleOncology letters2026

Association between fibroblast activation protein α expression and immune environment in gastric cancer.

Kosuke Kubo, Yukinori Kurokawa, Takaomi Hagi, Shinnosuke Nagano, Tsuyoshi Takahashi, Takuro Saito, Kazuyoshi Yamamoto, Kota Momose, Kotaro Yamashita, Koji Tanaka and 4 more

Abstract read
In one paragraph

Article in Oncology letters, 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. 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

14 authors.

Kosuke KuboDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Yukinori KurokawaDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Takaomi HagiDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Shinnosuke NaganoDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Tsuyoshi TakahashiDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Takuro SaitoDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Kazuyoshi YamamotoDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Kota MomoseDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Kotaro YamashitaDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Koji TanakaDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Tomoki MakinoDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Kiyokazu NakajimaDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Hidetoshi EguchiDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.
Yuichiro DokiDepartment of Gastroenterological Surgery, The University of Osaka Graduate School of Medicine, Suita, Osaka 565-0871, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Tumor stroma serves an important role in cancer progression. However, the role of fibroblast activation protein α (FAP), a subpopulation marker of cancer-associated fibroblasts (CAFs), remains poorly understood, especially in gastric cancer. The present study investigated the role of FAP-positive CAFs in gastric cancer prognosis and immune environment. The retrospective study included patients with gastric cancer who underwent curative resection. The tumor-stroma ratio (TSR) and FAP expression status were evaluated using immunohistochemistry, after which their associations with recurrence-free survival (RFS) were investigated. In addition, immune cell infiltration was evaluated, including T cells, regulatory T cells (Tregs) and M2 macrophages, using immunohistochemistry, and its association with TSR or FAP status was analyzed. Among the 128 eligible patients, 29 (23%) had low TSR, whereas 39 (30%) were FAP-positive. No significant association was observed between TSR and FAP status (P=0.596). The low TSR group and FAP-positive group showed significantly worse survival than the high TSR group and FAP-negative group (log-rank P=0.004, P=0.011, respectively). Subsequently, a Cox multivariate analysis for RFS identified that FAP positivity was an independent factor for poor prognosis (P=0.009) but low TSR was not (P=0.088). FAP-positive patients had a higher tumor infiltrating FOXP3

Indexed as

cancer-associated fibroblastsfibroblast activation protein αFOXP3M2 macrophagetumor-stroma ratio

Identifiers

PMID42422226
PMCPMC13343341

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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.