Abstract
Purpose
The study aims to understand how docetaxel and doxorubicin, two commonly used chemotherapeutic drugs, influence the expression of PD-L1, CTLA-4, and VISTA in cervical cancer cells.
Method
In this study, the CaSki cell line was cultured using standard cell culture techniques. The MTT test was employed to ascertain the half-maximal inhibitory concentration (IC50) and potency of chemotherapeutic agents: docetaxel and doxorubicin. We used qRT-PCR to investigate the expression of PD-L1, CTLA-4, and VISTA genes in the CaSki cell line after treatment.
Result
Doxorubicin significantly increased the expression of PD-L1 (P-value < 0.05) and CTLA-4 (P-value < 0.001) and decreased the expression of VISTA (P-value < 0.01) in the CaSki cell line, but docetaxel increased the expression of PD-L1 (P-value < 0.001), CTLA-4 (P-value < 0.001), and VISTA (P-value < 0.05).
Conclusion
Doxorubicin increased the expression of PD-L1 and CTLA-4, possibly creating an immunosuppressive cervical tumor environment. Combining immune checkpoint inhibitors with doxorubicin may counteract this effect. Docetaxel increased all three genes, indicating complex immune checkpoint regulation during chemotherapy. Further research is required to understand mechanisms and optimize combination therapies for enhanced cancer treatment.
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Abbreviations
- APCs :
-
Antigen-presenting cells
- CC :
-
Cervical cancer
- CTLA-4 :
-
Cytotoxic T-lymphocyte antigen-4
- DMSO :
-
Dimethyl sulfoxide
- FBS :
-
Fetal bovine serum
- HDI :
-
Human Development Index
- ICIs :
-
Immune checkpoint inhibitors
- ICs :
-
Intratumoral immune cells
- irAEs :
-
Immune-related adverse events
- MDSCs :
-
Myeloid-derived suppressor cells
- PD-1 :
-
Programmed cell death protein-1
- PD-L1 :
-
Programmed death-ligand 1
- qRT-PCR :
-
Quantitative real-time PCR
- RPMI-1640 :
-
Roswell Park Memorial Institute-1640
- TILs :
-
Tumor-infiltrating lymphocytes
- TME :
-
Tumor microenvironment
- TTP :
-
Tristetraprolin
- VECs :
-
Vascular endothelial cells
- VISTA :
-
V-domain Ig suppressor of T cell activation
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Acknowledgements
We express our gratitude to the research staff at the Immunology Research Center, Tabriz University of Medical Sciences, for their invaluable assistance in conducting the experiments.
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HN and BB conceptualized the study and contributed to its design. BB provided essential biological materials and reagents. HN, ZV, MAY, and HA conducted the experiments. MAY and AJ drafted the initial manuscript. AM, DSH, JAH, MAY, and AJ contributed to data analysis and revised and edited the manuscript. BB supervised the study.
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Tabriz University of Medical Science’s medical ethics committee approved the investigation, and the ethics identification number is IR.TBZMED.VCR.REC.1401.118. This study was carried out in compliance with the Helsinki Declaration’s principles.
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Nasiri, H., Ahmadpour Youshanlui, M., Valedkarimi, Z. et al. Impact of Chemotherapeutic Agents on PD-L1, CTLA-4, and VISTA Gene Expression in Cervical Cancer Cell Lines: An In Vitro Study. Indian J Gynecol Oncolog 22, 65 (2024). https://doi.org/10.1007/s40944-024-00828-7
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DOI: https://doi.org/10.1007/s40944-024-00828-7