Chen J, Wang L. Maslinic Acid Inhibits Cervical Intraepithelial Neoplasia by Suppressing Interleukin-6 and Enhancing Apoptosis in a Mouse Model.
Anticancer Agents Med Chem 2021;
22:579-585. [PMID:
34477530 DOI:
10.2174/1871520621666210903143922]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 07/26/2021] [Accepted: 07/26/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND
Cervical intraepithelial neoplasia (CIN) directly precedes cervical cancer, and elevated proinflammatory cytokine interleukins (IL)-6 is implicated in CIN.
OBJECTIVE
As maslinic acid exhibits anti-IL-6 property, the present study sought to determine the effect of maslinic acid on CIN in vitro and in vivo using cell cultures and mouse CIN models, respectively.
METHODS
The dose-effect of maslinic acid on HeLa cells, a human cervical cancer cell line, was first evaluated, including cytotoxicity, IL-6 secretion, IL-6 receptor (IL-6R) expression, proliferation potential and apoptosis status. A mouse model of CIN was also established, which was then subjected to increasing doses of maslinic acid treatment, followed by assessment of serum IL-6 level, cervical expression of IL-6R, and the proliferation potential and apoptosis of cervical tissues.
RESULTS
Maslinic acid dose-dependently inhibited cell growth and proliferation potential, reduced IL-6 secretion, cervical expression of IL-6R and induced apoptosis of HeLa cells in vitro. In the CIN mouse model, serum IL-6 level and cervical expression of IL-6R were elevated, which could be repressed by maslinic acid administration dose-dependently. Additionally, maslinic acid treatment in the CIN mice could also restore the otherwise increased proliferation potential and reduced apoptosis in the cervical tissues.
CONCLUSION
Maslinic acid exhibits potent anti-IL-6 property in the CIN mouse model, and alleviates the disease-related abnormality in proliferation potential and apoptosis state of the cervical tissue cells, demonstrating its usefulness as a promising agent in treating CIN.
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