Wang Z, He S, Jiang M, Li X, Chen N. Mechanism Study on Radiosensitization Effect of Curcumin in Bladder Cancer Cells Regulated by Filamin A.
Dose Response 2022;
20:15593258221100997. [PMID:
35677349 PMCID:
PMC9168873 DOI:
10.1177/15593258221100997]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective
To study the radiosensitization effect of curcumin, a natural product with
anti-inflammatory and anti-cancer properties, in bladder cancer cells and identify the
specific role of FLNA gene in that process.
Methods
CCK-8 method was initially adopted to identify the proper interventional concentration
of curcumin. T24 bladder cancer cells were subjected to CCK-8, flow cytometry, and
colony formation assay to study the cell biological behaviors under different
interventions. γ-H2AX test was performed to test the level of damage in T24 cells.
RT-qPCR and Western blot were conducted to measure FLNA mRNA and protein levels.
Results
Low-dose curcumin (10, 20 μM) following X-ray exposure resulted in increased DNA
damage, augmented apoptosis, and reduced proliferation of T24 cells. Certain
radiosensitization was demonstrated when curcumin was applied at 10 μM. Additionally,
elevation of FLNA gene and protein levels was also indicated upon combination
treatment.
Conclusion
Low-dose curcumin has certain radiosensitization effect in bladder cancer, where FLNA
plays a certain regulatory role.
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