Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancer

Abstract A comprehensive investigation of ovarian cancer (OC) progression at the single-cell level is crucial for enhancing our understanding of the disease, as well as for the development of better diagnoses and treatments. Here, over half a million single-cell transcriptome data were collected fro...

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Main Authors: Chaochao Chai, Langchao Liang, Nanna S. Mikkelsen, Wei Wang, Wandong Zhao, Chengcheng Sun, Rasmus O. Bak, Hanbo Li, Lin Lin, Fei Wang, Yonglun Luo
Format: Article
Language:English
Published: Nature Portfolio 2024-01-01
Series:Communications Biology
Online Access:https://doi.org/10.1038/s42003-024-05826-1
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author Chaochao Chai
Langchao Liang
Nanna S. Mikkelsen
Wei Wang
Wandong Zhao
Chengcheng Sun
Rasmus O. Bak
Hanbo Li
Lin Lin
Fei Wang
Yonglun Luo
author_facet Chaochao Chai
Langchao Liang
Nanna S. Mikkelsen
Wei Wang
Wandong Zhao
Chengcheng Sun
Rasmus O. Bak
Hanbo Li
Lin Lin
Fei Wang
Yonglun Luo
author_sort Chaochao Chai
collection DOAJ
description Abstract A comprehensive investigation of ovarian cancer (OC) progression at the single-cell level is crucial for enhancing our understanding of the disease, as well as for the development of better diagnoses and treatments. Here, over half a million single-cell transcriptome data were collected from 84 OC patients across all clinical stages. Through integrative analysis, we identified heterogeneous epithelial-immune-stromal cellular compartments and their interactions in the OC microenvironment. The epithelial cells displayed clinical subtype features with functional variance. A significant increase in distinct T cell subtypes was identified including Tregs and CD8+ exhausted T cells from stage IC2. Additionally, we discovered antigen-presenting cancer-associated fibroblasts (CAFs), with myofibroblastic CAFs (myCAFs) exhibiting enriched extracellular matrix (ECM) functionality linked to tumor progression at stage IC2. Furthermore, the NECTIN2-TIGIT ligand-receptor pair was identified to mediate T cells communicating with epithelial, fibroblast, endothelial, and other cell types. Knock-out of NECTIN2 using CRISPR/Cas9 inhibited ovarian cancer cell (SKOV3) proliferation, and increased T cell proliferation when co-cultured. These findings shed light on the cellular compartments and functional aspects of OC, providing insights into the molecular mechanisms underlying stage IC2 and potential therapeutic strategies for OC.
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spelling doaj.art-23ff22a4c6ce4ede80656bf694d0bea82024-03-05T16:38:37ZengNature PortfolioCommunications Biology2399-36422024-01-017111510.1038/s42003-024-05826-1Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancerChaochao Chai0Langchao Liang1Nanna S. Mikkelsen2Wei Wang3Wandong Zhao4Chengcheng Sun5Rasmus O. Bak6Hanbo Li7Lin Lin8Fei Wang9Yonglun Luo10College of Life Sciences, University of Chinese Academy of SciencesCollege of Life Sciences, University of Chinese Academy of SciencesDepartment of Biomedicine, Aarhus UniversityDepartment of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and TechnologyCollege of Life Sciences, University of Chinese Academy of SciencesCollege of Life Sciences, University of Chinese Academy of SciencesDepartment of Biomedicine, Aarhus UniversityLars Bolund Institute of Regenerative Medicine Qingdao-Europe Advanced Institute for LifeScience, BGI ResearchDepartment of Biomedicine, Aarhus UniversityLars Bolund Institute of Regenerative Medicine Qingdao-Europe Advanced Institute for LifeScience, BGI ResearchLars Bolund Institute of Regenerative Medicine Qingdao-Europe Advanced Institute for LifeScience, BGI ResearchAbstract A comprehensive investigation of ovarian cancer (OC) progression at the single-cell level is crucial for enhancing our understanding of the disease, as well as for the development of better diagnoses and treatments. Here, over half a million single-cell transcriptome data were collected from 84 OC patients across all clinical stages. Through integrative analysis, we identified heterogeneous epithelial-immune-stromal cellular compartments and their interactions in the OC microenvironment. The epithelial cells displayed clinical subtype features with functional variance. A significant increase in distinct T cell subtypes was identified including Tregs and CD8+ exhausted T cells from stage IC2. Additionally, we discovered antigen-presenting cancer-associated fibroblasts (CAFs), with myofibroblastic CAFs (myCAFs) exhibiting enriched extracellular matrix (ECM) functionality linked to tumor progression at stage IC2. Furthermore, the NECTIN2-TIGIT ligand-receptor pair was identified to mediate T cells communicating with epithelial, fibroblast, endothelial, and other cell types. Knock-out of NECTIN2 using CRISPR/Cas9 inhibited ovarian cancer cell (SKOV3) proliferation, and increased T cell proliferation when co-cultured. These findings shed light on the cellular compartments and functional aspects of OC, providing insights into the molecular mechanisms underlying stage IC2 and potential therapeutic strategies for OC.https://doi.org/10.1038/s42003-024-05826-1
spellingShingle Chaochao Chai
Langchao Liang
Nanna S. Mikkelsen
Wei Wang
Wandong Zhao
Chengcheng Sun
Rasmus O. Bak
Hanbo Li
Lin Lin
Fei Wang
Yonglun Luo
Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancer
Communications Biology
title Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancer
title_full Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancer
title_fullStr Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancer
title_full_unstemmed Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancer
title_short Single-cell transcriptome analysis of epithelial, immune, and stromal signatures and interactions in human ovarian cancer
title_sort single cell transcriptome analysis of epithelial immune and stromal signatures and interactions in human ovarian cancer
url https://doi.org/10.1038/s42003-024-05826-1
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