Int J Biol Sci
2018; 14(3):321-330.
doi:10.7150/ijbs.24360 This issueCite
Research Paper
Overexpressed circPVT1, a potential new circular RNA biomarker, contributes to doxorubicin and cisplatin resistance of osteosarcoma cells by regulating ABCB1
Zhu Kun-Peng*1,2, Ma Xiao-Long*1,2, Zhang Chun-Lin*✉1,2
1. Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University, School of Medicine, Shanghai 200072, PR China 2. Institute of Bone Tumor Affiliated to Tongji University, School of Medicine, Shanghai 200072, PR China * Contributed equally to this study and share first authorship.
✉ Corresponding author: Zhang Chun-Lin, MD, Department of Orthopedics, Shanghai Tenth People's Hospital, Tongji University, School of Medicine, 301, Yan-chang Middle Road, Shanghai 200072, China. E-mail: shzhangchunlin123com. Fax: +86 13761904091.More
Citation:
Kun-Peng Z, Xiao-Long M, Chun-Lin Z. Overexpressed circPVT1, a potential new circular RNA biomarker, contributes to doxorubicin and cisplatin resistance of osteosarcoma cells by regulating ABCB1. Int J Biol Sci 2018; 14(3):321-330. doi:10.7150/ijbs.24360. https://www.ijbs.com/v14p0321.htm
Circular RNAs (circRNAs) represent a widespread class of non-coding RNAs generated from back-splicing, with a circular loop structure. Many circRNAs have been reported to play essential roles in cancer development and have the potential to serve as a novel class of biomarkers for clinical diagnosis. However, the role of circRNA in osteosarcoma (OS) remains largely unknown. In the current study, we examined the expression level of circular RNA PVT1 (circPVT1), previously screened and identified the oncogenic role in gastric cancer, in OS and found that circPVT1 was significantly up-regulated in the OS tissues, serums and chemoresistant cell lines, correlated with poor prognosis of OS patients. Besides, ROC curve demonstrated that circPVT1 may be a better diagnostic biomarker than alkaline phosphatase (ALP) in OS with more sensitivity and specificity. In addition, functional assays revealed that circPVT1 knockdown by siRNA could weaken the resistance to doxorubicin and cisplatin of OS cells through decreasing the expression of classical drug resistance-related gene ABCB1. These findings may provide a new insight into the role of circPVT1 as a biomarker for the diagnosis and treatment target of OS.
Kun-Peng, Z., Xiao-Long, M., Chun-Lin, Z. (2018). Overexpressed circPVT1, a potential new circular RNA biomarker, contributes to doxorubicin and cisplatin resistance of osteosarcoma cells by regulating ABCB1. International Journal of Biological Sciences, 14(3), 321-330. https://doi.org/10.7150/ijbs.24360.
ACS
Kun-Peng, Z.; Xiao-Long, M.; Chun-Lin, Z. Overexpressed circPVT1, a potential new circular RNA biomarker, contributes to doxorubicin and cisplatin resistance of osteosarcoma cells by regulating ABCB1. Int. J. Biol. Sci. 2018, 14 (3), 321-330. DOI: 10.7150/ijbs.24360.
NLM
Kun-Peng Z, Xiao-Long M, Chun-Lin Z. Overexpressed circPVT1, a potential new circular RNA biomarker, contributes to doxorubicin and cisplatin resistance of osteosarcoma cells by regulating ABCB1. Int J Biol Sci 2018; 14(3):321-330. doi:10.7150/ijbs.24360. https://www.ijbs.com/v14p0321.htm
CSE
Kun-Peng Z, Xiao-Long M, Chun-Lin Z. 2018. Overexpressed circPVT1, a potential new circular RNA biomarker, contributes to doxorubicin and cisplatin resistance of osteosarcoma cells by regulating ABCB1. Int J Biol Sci. 14(3):321-330.
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