Articles written in Journal of Biosciences
Volume 46 All articles Published: 17 February 2021 Article ID 0020 Article
Circular RNAs (circRNAs) have been reported to play important roles in human cancers. Circular RNAhomeodomain interacting protein kinase 3 (Circ-HIPK3) was investigated to be involved in tumorigenesis.However, the functions of circ-HIPK3 in oral squamous cell carcinoma (OSCC) remain vague. The expressionof circ-HIPK3, microRNA (miR)-381-3p and Yes-associated protein1 (YAP1) was detected by qRT-PCR orwestern blot. Cell proliferation, apoptosis, invasion and migration were measured by MTT assay, flowcytometry, or transwell assay. The dual-luciferase reporter assay was employed to test the target correlationsmiR-381-3p and circ-HIPK3 or YAP1. Murine xenograft model was established to conduct in vivo assay. Circ-HIPK3 was elevated in OSCC tissues and cell lines, and decrease of circ-HIPK3 suppressed OSCC cellproliferation, invasion, migration and induced apoptosis in vitro as well as inhibited tumor growth in vivo.Rescue assay indicated circ-HIPK3 silence mediated OSCC progression inhibition by sponging miR-381-3p,which was a target of circ-HIPK3. Furthermore, miR-381-3p directly interacted with YAP1 and miR-381-3pinhibition could attenuate YAP1 deletion-induced suppression on cell malignant biological behavior in OSCC.Meanwhile, co-expression analysis showed circ-HIPK3 could regulate YAP1 expression by competing formiR-381-3p. Circ-HIPK3 contributed to OSCC growth and development through regulating YAP1 expressionby sponging miR-381-3p, indicating a promising therapeutic strategy for OSCC.
Volume 46, 2021
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