Evidence map›Paper›PMID 40080368›Full record

ArticleAnnals of surgical oncology2025

Mesothelin (MSLN) is Highly Expressed in Triple Negative Breast Cancer and is Associated with Enhanced Cell Proliferation and Proinflammatory Tumor Microenvironment.

Brendan L Hagerty, Takumi Sato, Rongrong Wu, Takashi Ishikawa, Kazuaki Takabe

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Article in Annals of surgical oncology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing 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

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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

6 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

5 authors.

Brendan L Hagerty *Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
Takumi Sato *Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
Rongrong Wu *Department of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA.
Takashi IshikawaDepartment of Breast Surgery and Oncology, Tokyo Medical University, Tokyo, Japan.
Kazuaki TakabeDepartment of Surgical Oncology, Roswell Park Comprehensive Cancer Center, Buffalo, NY, USA. Kazuaki.Takabe@roswellpark.org.ORCID http://orcid.org/0000-0002-6435-4241

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMesothelin (MSLN), a cell surface glycoprotein, is commonly expressed in several cancers, including 40% of triple negative breast cancer (TNBC) cases. Although its cellular or physiologic functions remain unclear, MSLN has been leveraged as a target for molecular therapies. This study investigates MSLN's potential role in TNBC, the breast cancer (BC) subtype with poorest outcomes. PATIENTS AND

methodsThe breast cancer (BC) cohorts from the Molecular Taxonomy of Breast Cancer International Consortium (METABRIC, n = 313), The Cancer Genome Atlas (TCGA, n = 160), and SCAN-B (n = 155) were used to obtain biological variables and gene expression data.

resultsHigh MSLN expression was primarily observed in epithelial cells, and its expression was associated with reduced stromal adipocytes in the tumor microenvironment (TME), supporting its role as a TNBC surface marker. MSLN expression was also associated with the TNBC subtype and advanced N stages in BC. However, MSLN expression did not correlate with long-term survival outcomes, including overall survival (OS), disease-specific survival (DSS), or disease-free survival (DFS); nevertheless, it was still associated with favorable response to neoadjuvant chemotherapy (NAC). Indeed, MSLN-high tumors exhibited a proinflammatory microenvironment, higher cancer-testis antigen (CTA) scores, and increased immune cell activity, notably immature dendritic cells (iDCs) and M1 macrophages. Biologically, MSLN expression was linked to increased cellular proliferation, with gene set enrichment analysis (GSEA) showing enrichment in pathways related to rapid proliferation, such as G2M checkpoint and E2F targets.

conclusionsMSLN-high TNBC is characterized by increased tumor grade, enhanced cell proliferation, and a proinflammatory microenvironment, showing better response to neoadjuvant chemotherapy without significant impact on long-term survival outcomes.

Indexed as

Biomarkers, TumorCell ProliferationGPI-Linked ProteinsInflammationTriple Negative Breast NeoplasmsTumor MicroenvironmentFemaleFollow-Up StudiesHumansMesothelinMiddle AgedPrognosisSurvival RateBiomarkers, TumorGPI-Linked ProteinsMesothelinMSLN protein, humanMesothelinTargeted therapyTriple negative breast cancer

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