李 娟, 王 爱, 李 宁, 祝 英, 李 坤, 刘 浩, 高 自. [Aumolertinib inhibits growth of human choroidal melanoma MUM-2B cells
in vitro and
in vivo].
NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022;
42:1604-1610. [PMID:
36504052 PMCID:
PMC9742785 DOI:
10.12122/j.issn.1673-4254.2022.11.03]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Indexed: 12/15/2022]
Abstract
OBJECTIVE
To investigate the inhibitory effect of aumolertinib on proliferation of human choroidal melanoma MUM-2B cells and explore the possible molecular mechanism.
METHODS
CCK-8 assay and colony formation assay were used to evaluate the inhibitory effect of different concentrations of aumolertinib on viability and proliferation of MUM-2B cells. Flow cytometry was performed to analyze the apoptosis, necrosis, cellular ROS production and cell cycle changes in aumolertinib- treated MUM-2B cells. The antitumor effect of aumolertinib against human choroidal melanoma was observed in nude mouse models bearing MUM-2B tumor cell xenografts.
RESULTS
The results of CCK-8 and colony formation assay showed that aumolertinib strongly inhibited the proliferation MUM-2B cells in a dose-dependent manner. Flow cytometry showed that aumolertinib dose-dependently increased the total apoptosis rate of MUM-2B cells to as high as 76.65% at the concentration of 8 μmol/L and induced obvious cell cycle arrest at G1 phase. Aumolertinib treatment also caused a dose-dependent increase of ROS production and reduction of mitochondrial membrane potential in MUM-2B cells. In the tumor-bearing nude mice, treatment with aumolertinib significantly inhibited tumor growth without causing obvious body weight loss.
CONCLUSION
Aumolertinib can effectively inhibit the growth of human choroidal melanoma MUM-2B cells both in vivo and in vitro, suggesting its potential clinical value in the therapy of choroidal melanomas.
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