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Columbamine-Mediated PTEN/AKT Signal Pathway Regulates the Progression of Glioma

Authors Niu HT, Liu Y, Wang YZ, Tian Y, Yang M, Jiang HS

Received 14 October 2020

Accepted for publication 3 December 2020

Published 19 January 2021 Volume 2021:13 Pages 489—497


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Eileen O'Reilly

Hai-Tao Niu, Yang Liu, Yan-Zhou Wang, Yong Tian, Ming Yang, Hong-Sheng Jiang

Department of Neurosurgery, Cangzhou Central Hospital, Cangzhou, Hebei 061000, People’s Republic of China

Correspondence: Hai-Tao Niu
Department of Neurosurgery, Cangzhou Central Hospital, No. 16, Xinhua West Road, Cangzhou, Hebei 061000, People’s Republic of China

Purpose: At present, comprehensive therapy has been widely used in the treatment of glioma, but the curative effect is not good, and the survival rate of patients is low. Therefore, it is crucial to explore further the regulatory mechanism of the occurrence and development of glioma and find potential therapeutic targets. We aimed to investigate the columbamine (a tetrahydroisoquinoline alkaloid derived from the rhizome of Chinese herbal medicine Rhizoma Coptidis) on glioma progression.
Methods: MTT, clone formation assay, wound healing assay, and transwell assay were performed to detect the cell viability, proliferation, migration, and invasion ability. Flow cytometry, TUNEL, and Western blot were used to identify the apoptosis level in glioma cells. PTEN inhibitor (SF1670) and AKT activator (SC79) were used to explore the mechanism of columbamine on glioma cell progression.
Results: Columbamine inhibits proliferation, migration, invasion, and induces apoptosis in glioma cell lines (SHG44 and U251). Columbamine prevents phosphorylation of AKT and promotes the expression of PTEN. Blocking PTEN level or inducing phosphorylation of AKT attenuates columbamine function on SHG44 cells proliferation, metastasis, and apoptosis.
Conclusion: In this research, we find that columbamine could inhibit proliferation and metastasis of glioma cell lines, and promote apoptosis of glioma cell lines via regulating PTEN/AKT signal pathway. It provides a new theoretical basis for the development of anti-glioma drugs.

Keywords: columbamine, glioma, proliferation, PTEN, AKT

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