Evidence map›Paper›PMID 42860383›Full record

ArticleJournal of cellular and molecular medicine2026

Single-Cell Multiomics Reveals That OTUD7B Is a Central Driver of Epithelial Remodelling and the Immunosuppressive Microenvironment in Pancreatic Ductal Adenocarcinoma.

Xiao-Li Liu, Jing-Wang, Shan-Yu Zhao, Lu-Li, Ming-Hui Zhang

Abstract read
In one paragraph

Article in Journal of cellular and molecular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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0citing papers in PubMed
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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

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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

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

5 authors.

Xiao-Li LiuDepartment of Pathology, General Hospital of Ningxia Medical University, Yinchuan, China.ORCID https://orcid.org/0009-0008-3926-7892
Jing-WangDepartment of Pathology, General Hospital of Ningxia Medical University, Yinchuan, China.
Shan-Yu ZhaoDepartment of Pathology, School of Basic Medical Sciences, Dali University, Yunnan, China.
Lu-LiDepartment of Pathology, General Hospital of Ningxia Medical University, Yinchuan, China.
Ming-Hui ZhangDepartment of Pathology, General Hospital of Ningxia Medical University, Yinchuan, China.ORCID https://orcid.org/0009-0007-3924-0721

Funding

the Natural Science Foundation of Ningxia Medical University XT2025039the Natural Science Foundation of Ningxia Medical University XZ2022023the Natural Science Foundation of Ningxia Province 2025AAC050079
6 · The paper itself

Abstract

Pancreatic ductal adenocarcinoma (PAAD) is characterized by extreme malignancy and profound resistance to therapy, largely driven by a fibrotic and immunosuppressive tumour microenvironment (TME). The deubiquitinase OTU domain-containing protein 7B (OTUD7B) has been implicated in inflammatory and oncogenic signalling, but its role in PAAD and its TME remains unclear. This study integrated single-cell RNA-seq datasets from the GEO and bulk RNA-seq data from the TCGA to delineate the cellular ecosystem of PAAD, and employed cell-cell communication analysis, high-dimensional weighted gene coexpression network analysis (hdWGCNA), and nonnegative matrix factorization (NMF) to identify OTUD7B-associated modules and epithelial subpopulations, while assessing the survival and clinicopathologic correlations of OTUD7B in the TCGA-PAAD cohort. Quantitative proteomics of OTUD7B-knockout PAAD cells was performed and combined with GO/KEGG and GSEA to explore downstream pathways, and immune infiltration was inferred by deconvolution algorithms and validated by multiplex immunofluorescence staining of OTUD7B, CD4, and FOXP3. Single-cell RNA-seq revealed the expansion of epithelial cells, fibroblasts, and macrophages with dense ligand-receptor networks, alongside the depletion of effector T and NK cells, indicating a shift toward an immunosuppressive TME. hdWGCNA identified epithelial-ECM modules in which OTUD7B served as a hub gene, and NMF revealed an OTUD7B-high epithelial subset enriched in glycosylation-related metabolic programs and positioned at an early stage of the malignant trajectory. OTUD7B was significantly upregulated in PAAD and was associated with higher grade, lymph node metastasis, and advanced stage, and predicted poorer overall survival. Proteomic profiling of OTUD7B-deficient cells revealed broad remodelling of mitochondrial oxidative phosphorylation, ROS metabolism, and redox homeostasis. OTUD7B expression was positively correlated with M2 macrophage infiltration, immunomodulatory gene expression, and CD4

Indexed as

Carcinoma, Pancreatic DuctalPancreatic NeoplasmsSingle-Cell AnalysisTumor MicroenvironmentEndopeptidasesEpithelial CellsGene Expression Regulation, NeoplasticHumansProteomicsEndopeptidasesOTUD7B protein, humanOTUD7Bpancreatic ductal adenocarcinomatumour microenvironment

Identifiers

PMID42860383
PMCPMC13655224

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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.