Evidence map›Paper›PMID 40050909›Full record

ArticleJournal of translational medicine2025

Melanophilin inhibit the growth and lymph node metastasis of triple negative breast cancer via the NONO-SPHK1-S1P axis.

Xing Yao, Tan Yuen, Chen Qingchuan, Zhang Jianjun, Liu Yefu, Sun Shulan

Abstract read
In one paragraph

Article in Journal of translational medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

5 citing papers in PubMed.

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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

6 authors.

Xing Yao *Central Laboratory, Cancer Hospital of Dalian University of Technology (Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute), Shenyang, Liaoning, 110042, P. R. China.
Tan Yuen *Department of Gastric Surgery, Cancer Hospital of Dalian University of Technology (Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute), Shenyang, Liaoning, 110042, P. R. China.
Chen Qingchuan *Department of Gastric Surgery, School of Medicine, Sichuan Cancer Hospital, University of Electronic Science and Technology of China, Chengdu, China.
Zhang JianjunDepartment of Gastric Surgery, Cancer Hospital of Dalian University of Technology (Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute), Shenyang, Liaoning, 110042, P. R. China. zhangjianjun@cancerhosp-ln-cmu.com.
Liu YefuDepartment of Hepatopancreatobiliary Surgery, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning, 110042, P. R. China. 97902153@cmu.edu.cn.
Sun ShulanCentral Laboratory, Cancer Hospital of Dalian University of Technology (Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute), Shenyang, Liaoning, 110042, P. R. China. sunshulan@cancerhosp-ln-cmu.com.

Funding

National Natural Science Foundation of China-Liaoning Joint Fund 82203830National Natural Science Foundation of China-Liaoning Joint Fund 82303492Natural Science Foundation of Liaoning Province 2022-BS-062Natural Science Foundation of Liaoning Province 2022-YQ-08Natural Science Foundation of Liaoning Province 2023-MSLH-160Natural Science Foundation of Liaoning Province 220569
6 · The paper itself

Abstract

backgroundTriple negative breast cancer (TNBC) is the most aggressive breast cancer subtype with the worst prognosis, and there are no targeted treatments available. TNBC patients are more likely to develop metastases and relapse than patients with other breast cancer subtypes. Lymph node metastasis is the first sign of metastatic spread. We aimed to characterize the mechanism of lymph node metastasis in TNBC to provide a new strategy for the treatment of TNBC.

methodsGene Expression Omnibus (GEO) TNBC database was utilized to screen for genes related to N staging. Screening the downstream target of Melanophilin (MLPH) in TNBC through RNA sequencing (RNA seq) analysis. Protein mass spectrometry was utilized to analyze the protein which interacts with MLPH, and RNA binding protein immunoprecipitation and quantitative real-time PCR (RIP qPCR) were utilized to verify the regulation of sphingosine kinase 1 (SPHK1) expression by MLPH through Non-POU domain-containing octamer-binding protein (NONO). Cell functional assays and in vivo models experiments further confirmed the effects of MLPH on proliferation and lymph node metastasis of TNBC through the SPHK1-S1P axis.

resultsMLPH is downregulated in TNBC and inhibits tumor growth and lymph node metastasis though the MLPH-NONO-SPHK1-S1P pathway. NONO was identified as an essential factor involved in SPHK1 mRNA splicing. MLPH interacts with NONO to inhibit SPHK1 mRNA splicing of SPHK1, which reduces the content of S1P, thereby inhibiting growth and lymph node metastasis in TNBC.

conclusionsThis study preliminarily elucidated a mechanism underlying lymph node metastasis in TNBC and identified the role of the MLPH-NONO-SPHK1-S1P axis in regulating proliferation and lymph node metastasis in TNBC. These findings may help design strategies for predicting and treating metastasis in TNBC.

Indexed as

Phosphotransferases (Alcohol Group Acceptor)RNA-Binding ProteinsSignal TransductionSphingosineTriple Negative Breast NeoplasmsAnimalsCell Line, TumorCell ProliferationDown-RegulationFemaleGene Expression Regulation, NeoplasticHumansLymphatic MetastasisMiceSphingosine KinasePhosphotransferases (Alcohol Group Acceptor)RNA-Binding ProteinsSphingosineSphingosine KinaseLymph node metastasisMLPHTNBC

Identifiers

PMID40050909
PMCPMC11887221

What Socratic holds

Textmetadata
LicenceCC BY-NC-ND
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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.