Study of EGCG induced apoptosis in lung cancer cells by inhibiting PI3K/Akt signaling pathway.
EUROPEAN REVIEW FOR MEDICAL AND PHARMACOLOGICAL SCIENCES 2019;
22:4557-4563. [PMID:
30058690 DOI:
10.26355/eurrev_201807_15511]
[Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE
To investigate the role of phosphatidylinositol-3-kinase protein kinase B (PI3K/Akt) signaling pathway in the apoptosis of H1299 lung cancer cells induced by epigallocatechin gallate (EGCG).
MATERIALS AND METHODS
H1299 lung cancer cells were treated with EGCG at a dose of 10 µM, 20 µM, and 40 µM, respectively. Cell culture was performed for 72 h and then: 1, cell proliferation was detected by MTT assay; 2, cell apoptosis rate was detected by flow cytometry; 3, expression of Caspase-3, Bax, and Bcl-2 was detected by Western blot; 4, expression of PI3K, p-PI3K, Akt, and p-Akt was detected by Western blot.
RESULTS
The proliferation of H1299 cells was significantly inhibited 72 h after treatment with different doses of EGCG, and cell apoptosis rate was significantly increased (p<0.05). Compared with those in the control group, expression of PI3K and Akt in the lung cancer cells H1299 after EGCG treatment showed no significant differences (p>0.05), while expression levels of p-PI3K and p-Akt were significantly reduced (p<0.05).
CONCLUSIONS
EGCG can inhibit the proliferation and induce apoptosis of H1299 lung cancer cells, and the effect is related to the inhibition of the activation of PI3K/Akt signaling pathway.
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