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Updated: Jan 29, 2026
07:27
Transcriptome Analysis of Single Cells
Published on: April 25, 2011
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Single-Cell Transcriptomic Landscape of Cervical Cancer Cell Lines Before and After Chemoradiotherapy
Dmitriy V Semenov1, Irina S Tatarnikova1, Anna S Chesnokova1
1Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Lavrentyev Avenue, 8, Novosibirsk 630090, Russia.
Cells
|January 28, 2026
Summary
Chemoradiotherapy resistance in cervical cancer involves cellular adaptations like stemness factor upregulation and inflammatory pathway activation. This study identifies senescent-like and progenitor cells driving treatment failure and tumor persistence.
Area of Science:
- Oncology
- Genomics
- Cell Biology
Background:
- Cervical cancer poses a global health challenge, with chemoradioresistance hindering effective treatment.
- Understanding resistance mechanisms is crucial for improving patient outcomes.
Purpose of the Study:
- To characterize the transcriptomic and cellular heterogeneity of isogenic cervical cancer cell lines resistant to chemoradiotherapy.
- To elucidate the multilevel cellular adaptations contributing to treatment resistance.
Main Methods:
- Established a unique pair of isogenic primary cervical cancer cell lines (AdMer35 and AdMer43) from a single patient before and after radiation therapy.
- Performed in-depth comparative analysis using single-cell RNA sequencing.
Main Results:
- Resistant cells (AdMer43) showed transcriptional reprogramming, upregulating embryonic stemness factors (HOX, POU5F1, SOX2).
- Identified a shift in extracellular matrix composition and activation of inflammatory pathways in resistant cells.
- Characterized a senescent-like cell population with enhanced pro-tumorigenic communication and a progenitor-like cell population with minimal copy number variation (CNV).
Conclusions:
- Chemoradioresistance in cervical cancer arises from coordinated, multilevel cellular adaptations.
- Senescent-like and progenitor cell populations contribute to tumor persistence and treatment failure.
- Findings provide insights for developing targeted strategies against resistant cell pools to improve cervical cancer treatment outcomes.
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