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Horm Metab Res 2023; 55(10): 722-732
DOI: 10.1055/a-2125-7018
Original Article: Endocrine Research

Hsa_circ_0000106 Acts as a Tumor Promoter in Pancreatic Cancer by Targeting the MiR-455–3p/HDAC4

Shunxin Hao‡
1   Department of General Surgery, Wuhan University of Science and Technology Hospital, Wuhan, China
,
Zhi Yao‡
1   Department of General Surgery, Wuhan University of Science and Technology Hospital, Wuhan, China
,
Yifeng Liu
1   Department of General Surgery, Wuhan University of Science and Technology Hospital, Wuhan, China
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Abstract

Circular RNAs (circRNAs) frequently participate in pancreatic cancer (PC) progression. This study focuses on circ_0000106, a novel circRNA, and its potential function in PC development. Circ_00001106, miR-455–3p, and HDAC4 expression levels in PC were determined using qRT-PCR and immunoblotting. RNA immunoprecipitation and dual-luciferase reporter assays were performed to verify their binding interactions. Loss-of-function assays, including CCK-8, colony formation, and transwell assays, were used to estimate the proliferative and migratory properties of PC cells. A nude mouse model was constructed to assess the influence of circ_0000106 on tumor formation in vivo. A pronounced elevation of circ_0000106 and HDAC4 and a reduction of miR-455–3p in PC were observed. Circ_0000106 was prone to binding to miR-455–3p, and miR-455–3p further targeted HDAC4. Functionally, the proliferative and migratory properties of PC cells were dampened by the loss of circ_0000106 or HDAC4 and could be potentiated by miR-455–3p inhibition. Moreover, the knockdown of circ_0000106 delayed tumor growth in vivo. Additionally, the downregulation of miR-455–3p attenuated the repressive effects of circ_0000106 deficiency on PC cell migration and proliferation. Loss of HDAC4 exerted similar mitigative effects on miR-455–3p downregulation-stimulated PC cells. In conclusion, circ_0000106 promotes tumor migration and growth in PC by targeting the miR-455–3p/HDAC4 axis. These results suggest that the circ_0000106/miR-455–3p/HDAC4 network could be regarded as a latent target for PC treatment.

Key words

pancreatic cancer - circ_0000106 - miR-455–3p - HDAC4 - proliferation - migration


Publication History

Received: 20 February 2023

Accepted after revision: 30 June 2023

Article published online:
08 August 2023

© 2023. Thieme. All rights reserved.

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany

 

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