Mesothelioma cell heterogeneity identified by single cell RNA sequencing
Licun Wu1,2, Zongjie Wang3, Amin Zia1,4
1Latner Thoracic Surgery Research Laboratories, Division of Thoracic Surgery, Toronto General Hospital, Toronto General Hospital Research Institute, University Health Network, University of Toronto, Toronto, ON, M5G 1L7, Canada.
Scientific Reports
|March 14, 2025
Summary
This study reveals distinct molecular profiles of mesothelioma cells from different sources using single-cell RNA sequencing. Understanding this cell heterogeneity offers new targets for personalized mesothelioma therapies.
Area of Science:
- Oncology
- Genomics
- Cell Biology
Background:
- Mesothelioma cell heterogeneity complicates diagnosis and treatment.
- Understanding tumor cell diversity is key to developing targeted therapies.
Purpose of the Study:
- To investigate mesothelioma cell heterogeneity using single-cell RNA sequencing (scRNA-seq).
- To identify distinct gene signatures in mesothelioma cells from cell culture, peritoneal lavage, and circulating tumor cells.
- To explore potential therapeutic targets based on identified cell subpopulations.
Main Methods:
- Single-cell RNA sequencing (scRNA-seq) was performed on mesothelioma cells from cell culture, peritoneal lavage, and circulating tumor cells in murine models.
- Gene set enrichment analysis identified unique gene expression patterns for each cell subpopulation.
Main Results:
- Mesothelioma cells from cell culture showed enrichment in cell cycle control, proliferation, and apoptosis pathways.
- Circulating tumor cells exhibited gene signatures associated with cancer cell stemness.
- Peritoneal lavage cells displayed upregulated genes involved in epithelial-mesenchymal transition and immune responses (IFN-α, IFN-γ).
- Shared pathways suggest potential for functional state transitions.
Conclusions:
- Distinct gene signatures in mesothelioma subpopulations correlate with their origin and may drive tumor initiation and progression.
- This study provides novel insights into circulating mesothelioma cell heterogeneity.
- Findings offer potential targets for developing personalized and more effective mesothelioma treatments.
Related Concept Videos
02:21Cancers Originate from Somatic Mutations in a Single Cell
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
02:21Cancers Originate from Somatic Mutations in a Single Cell
Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...