Open AccessKnockdown of circ_0055412 promotes cisplatin sensitivity of glioma cells through modulation of CAPG and Wnt/β‐catenin signaling pathway
Author(s) -
Zhou Qingjiu,
Fu Qiang,
Shaya Mahati,
Kugeluke Yalikun,
Li Shaoshan,
Dilimulati Yisireyili
Publication year - 2022
Publication title -
cns neuroscience and therapeutics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.403
H-Index - 69
eISSN - 1755-5949
pISSN - 1755-5930
DOI - 10.1111/cns.13820
Subject(s) - glioma , gene knockdown , wnt signaling pathway , cancer research , cisplatin , downregulation and upregulation , signal transduction , chemistry , catenin , microbiology and biotechnology , biology , cell culture , biochemistry , gene , genetics , chemotherapy
Glioma is the most frequent primary cerebral tumor in adults. Recent evidence has suggested that circular RNAs (circRNAs) are associated with the pathological processes in glioma. In our study, we aimed to investigate the function and mechanism of circ_CAPG (circ_0055412) in glioma. Methods Firstly, circ_0055412 expression was examined through RT‐qPCR analysis. Loss‐of‐function assays and animal experiments were implemented to evaluate the role of circ_0055412 on cisplatin resistance of glioma cells. Moreover, mechanism assays were done to probe into the regulatory mechanism of circ_0055412 in glioma cells. Results Circ_0055412 was found to be notably upregulated in glioma cells. Moreover, depletion of circ_0055412 enhanced cisplatin sensitivity of glioma cells in vitro and in vivo. Moreover, circ_0055412 recruited eukaryotic translation initiation factor 4A3 (EIF4A3) protein to stabilize capping actin protein, gelsolin like (CAPG) mRNA. Furthermore, circ_0055412 served as a sponge for microRNA‐330‐3p (miR‐330‐3p) and regulated nuclear factor of activated T cells 3 (NFATC3) expression to activate the transcription of catenin beta 1 (CTNNB1), thus participating in the activation of Wnt/β‐catenin signaling pathway. Conclusion Circ_0055412 contributed to cisplatin resistance of glioma cells via stabilizing CAPG mRNA and modulating Wnt/β‐catenin signaling pathway. This finding might provide novel information for the treatment of glioma.