Exploring the mechanism of resistance to vincristine in breast cancer cells using transcriptome sequencing technology
- Yao Chen
- Lili Yang
- Chao Wang
- Changmiao Wang
Affiliations: Department of General Surgery, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
- Published online on: October 5, 2023 https://doi.org/10.3892/ol.2023.14089
Copyright: © Chen
et al. This is an open access article distributed under the
terms of Creative
Commons Attribution License.
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Breast cancer has replaced lung cancer as the leading cancer globally, but various chemotherapy drugs for breast cancer are prone to resistance, especially in patients with distant metastases who are susceptible to multiple chemotherapy drug resistance often leading to treatment failure. Vincristine (VCR) is an alkaloid extracted from Catharanthus roseus, and is often used in combination with other chemotherapy drugs to treat various types of cancer, including breast cancer. Research on the development of resistance to VCR has been carried out using transcriptome sequencing technology. Firstly, gradient increase of VCR concentration was used to produce a VCR‑resistant breast cancer cell line. Mechanistically, RNA was extracted from the VCR‑resistant breast cancer cell line, and the transcriptome was sequenced. Further analysis showed changes in the expression levels of various genes in the aforementioned VCR‑resistant breast cancer cell line. Meanwhile, the analysis of splicing events also indicated a change in variable splicing events. Further validation showed that the expression levels of multiple genes, including interleukin‑1β, were altered in the VCR‑resistant breast cancer cell line, and these gene expression changes were related to VCR resistance. The results of the present study provide a theoretical basis for exploring the mechanism of VCR resistance clinically.