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- W4280493618 abstract "Osteosarcoma (OS) is the most common bone cancer mostly seen in people aged 10-25 years. This research aims to clarify the function of hsa_circ_0001982 in osteosarcoma (OS) and its effect on drug resistance, preliminarily exploring its mechanism.The expression of hsa_circ_0001982 and miR-143 in OS clinical tissues and cells was detected by real-time fluorescence quantitative polymerase chain reaction (qRT-PCR), MTT, colony formation assay, and transwell assay assessed cell proliferation, colony formation, migration, and invasion, respectively. The targeted relationship of hsa_circ_0001982 and miR-143 was verified by a dual-luciferase reporter assay.The expression of hsa_circ_0001982 was significantly increased in OS tissues and cells (MG63), as in well as chemoresistant OS tissues and cells (MG63/Dox). Overexpression of hsa_circ_0001982 promoted proliferation, colony formation, migration, invasion, and multidrug resistance in MG63 cells. By contrast, knockdown of hsa_circ_0001982 markedly reduced the resistance of MG63/Dox cells to doxorubicin (IC50 evidently reduced). Bioinformatic prediction showed that miR-143 was a target miRNA of hsa_circ_0001982, and a dual-luciferase reporter assay proved this. Further experiments revealed that miR-143 expression was notably downregulated in OS tissues, chemoresistant OS tissues, and MG63/Dox cells. Moreover, miR-143 was negatively correlated with hsa_circ_0001982 in OS cells and tissues.The regulation of malignant behaviors such as proliferation, invasion, migration, and multidrug resistance of OS cells by hsa_circ_0001982 may be achieved by targeting miR-143. Moreover, hsa_circ_0001982 is a potential target for early diagnosis and targeted therapy of OS." @default.
- W4280493618 created "2022-05-22" @default.
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- W4280493618 date "2022-05-16" @default.
- W4280493618 modified "2023-10-14" @default.
- W4280493618 title "Hsa_circ_0001982 promotes the proliferation, invasion, and multidrug resistance of osteosarcoma cells" @default.
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- W4280493618 doi "https://doi.org/10.1002/jcla.24493" @default.
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