Evidence map›Paper›PMID 41840509›Full record

ArticleBMC cancer2026

Regulation of natural killer cell infiltration and tumor progression by CMTM6 in gastric cancer.

Fangzhou Ye, Jian Li, Jiayi Wang, Jiajun Fan, Xia Sheng, Songhua Bei, Xiaohong Zhang, Jun Jiang, Huanqing Li, Li Feng

Abstract read
In one paragraph

Article in BMC cancer, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

10 authors.

Fangzhou Ye *Endoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China.
Jian Li *Endoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China.
Jiayi Wang *Endoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China.
Jiajun Fan *Department of Biological Medicines & Shanghai Engineering Research Center of Immunotherapeutic, Fudan University School of Pharmacy, Shanghai, 201203, China.
Xia ShengDepartment of Pathology, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China.
Songhua BeiEndoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China.
Xiaohong ZhangEndoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China.
Jun JiangEndoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China.
Huanqing LiEndoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China. 176545456@qq.com.
Li FengEndoscopy Center, Minhang Hospital, Fudan University, 170 Xinsong Rd., Minhang District, Shanghai, 201100, China. feng_li@fudan.edu.cn.

Funding

China Postdoctoral Science Foundation 2025M781941National Natural Science Foundation of China 82172571National Natural Science Foundation of China 82503570
6 · The paper itself

Abstract

backgroundTumor CMTM6 is known to regulate programmed death-ligand 1 expression and affect the cytotoxicity of infiltrating T cells, while its impact on natural killer (NK) cells and tumor malignancy remains to be fully understood. This study aimed to investigate the influences of tumor CMTM6 on NK cell infiltration and tumor progression.

methodsWe established animal models of gastric cancer to assess the effects of CMTM6 knockdown on the NK cell infiltration into the tumor. Tumor tissue microarray was used to evaluate the correlation between CMTM6 expression and tumor differentiation. Proteomic analysis was performed to identify potential downstream effectors of CMTM6, validated by coimmunoprecipitation. The lysosomal and proteasomal degradation of the effector was determined by cycloheximide chase given CMTM6 knockdown or over-expression in vitro.

resultsCMTM6 knockdown significantly enhanced the infiltration of NK cells into gastric tumors and suppressed tumor growth. CMTM6 protein level decreased in poorly differentiated gastric cancer, correlating with the loss of epithelial integrity. We identified poliovirus receptor-related 2 (PVRL2/Nectin-2) as a potential effector of CMTM6, which functions as an adhesion molecule critical for cellular junctions and the epithelial barrier. CMTM6 interacts with Nectin-2 via RAB14/RAB11 mediated trafficking, and CMTM6 inhibits Nectin-2 degradation through both lysosomal and proteasomal pathways.

conclusionsInhibition of CMTM6 expression enhances host anti-tumor immunity by increasing NK cell infiltration while potentially influencing the tumor progression.

Indexed as

ChemokinesKiller Cells, NaturalLymphocytes, Tumor-InfiltratingMARVEL Domain-Containing ProteinsMyelin ProteinsStomach NeoplasmsAnimalsCell Line, TumorDisease ProgressionGene Expression Regulation, NeoplasticHumansMiceNectinsChemokinesCMTM6 protein, humanMARVEL Domain-Containing ProteinsMyelin ProteinsNectinsAdhesion moleculeAnti-tumor immune responseCMTM6Immune cell infiltrationNatural killer cellsNectin-2Vesicle trafficking

Identifiers

PMID41840509
PMCPMC13104315

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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 Socratic graph.