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Background: cervical squamous cell carcinoma (CSCC) is the second gynecological tumors that seriously threaten women's life quality. Circular RNA (circRNA) is related with cervical cancer carcinogenesis and radiosensitivity.
Aim: To investigate the performance of hsa_circ_0007905 (circSTX6) on regulating cellular activities and radiosensitivity in CSCC.
Methods: The relative expression of circSTX6 in different tissue samples was detected by RT-qPCR. The cellular activity influence of circSTX6 in cervical cancer cells was measured by CCK-8 and Transwell assays. The survival fractions of cancer cells were detected after the radiation treatment to explore the relationship between circSTX6 and radiosensitivity of cervical cancer. The downstream miRNAs were predicted and analyzed. Rescue experiments confirmed their targeting relationship. Bioinformatic analysis was performed to identify the potential targets of miR-203a-3p.
Results: circSTX6 was increased and miR-203a-3p was decreased in cervical cancer tissues and radio-resistant tissues. CircSTX6 expression was related to the patient's survival rates. CircSTX6 absence decreased cervical cancer cell proliferation and invasion while enhancing the sensitivity of cervical cancer cells to radiotherapy by regulating miR-203a-3p. RAB27B may be a target of miR-203a-3p.
Conclusion: circSTX6 may be a clinical prognostic biomarker in CSCC. The absence of circSTX6 inhibits cellular behaviors and increases the sensitivity of cervical cancer cells to radiation by modulating miR-203a-3p/RAB27B axis.
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Source |
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11544058 | PMC |
http://dx.doi.org/10.1016/j.heliyon.2024.e39262 | DOI Listing |
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