Khair Al Moutassem Billah, Maniangat Luke Alexander, Patnaik Rajashree, Testarelli Luca
Department of Basic Medical & Dental Sciences, College of Dentistry, Ajman University, Ajman, United Arab Emirates.
Centre of Medical and Bio-allied Health Science Research, Ajman University, Ajman, United Arab Emirates.
PeerJ. 2025 Mar 26;13:e19135. doi: 10.7717/peerj.19135. eCollection 2025.
Novel treatment techniques are needed since lung cancer is still a major worldwide health concern. Green tea contains a component called epigallocatechin-3-gallate (EGCG), which has demonstrated potential anticancer properties. This work sought to understand how EGCG affects the phosphatidylinositol-3-kinase protein kinase B (PI3K/Akt) signaling pathway, which in turn causes apoptosis in H1299 lung cancer cells.
In this experiment, multiple dosages of EGCG were applied to five H1299 cells and five A549 cell lines for a duration of 72 h. Apoptotic pathways, cellular responses, and protein expression levels were investigated in relation to EGCG by morphological, biochemical, and proliferation/migration investigations.
In H1299 and A549 cells, EGCG raised apoptosis rates and, in a dose-dependent way, hindered cell growth. The levels of phosphorylated Akt (p-Akt) and PI3K (p-PI3K) dramatically reduced following EGCG administration, despite no significant alterations in Akt and PI3K expressions. These results imply that EGCG inhibits the activation of the PI3K/Akt signaling pathway, which in turn causes apoptosis in H1299 and A549 cells.
The research provides insights into the effects of EGCG on proliferation and migratory inhibition, as well as highlighting its potential to induce apoptosis in lung cancer cells. These results support EGCG's promise as a therapeutic agent in the treatment of lung cancer and further our understanding of the processes underlying its anticancer activities.
由于肺癌仍是全球主要的健康问题,因此需要新的治疗技术。绿茶含有一种名为表没食子儿没食子酸酯(EGCG)的成分,该成分已显示出潜在的抗癌特性。这项研究旨在了解EGCG如何影响磷脂酰肌醇-3-激酶蛋白激酶B(PI3K/Akt)信号通路,进而导致H1299肺癌细胞凋亡。
在本实验中,将多种剂量的EGCG应用于5种H1299细胞系和5种A549细胞系,持续72小时。通过形态学、生化和增殖/迁移研究,研究了与EGCG相关的凋亡途径、细胞反应和蛋白质表达水平。
在H1299和A549细胞中,EGCG提高了凋亡率,并以剂量依赖的方式阻碍细胞生长。给予EGCG后,磷酸化Akt(p-Akt)和PI3K(p-PI3K)水平显著降低,尽管Akt和PI3K的表达没有明显变化。这些结果表明,EGCG抑制PI3K/Akt信号通路的激活,进而导致H1299和A549细胞凋亡。
该研究为EGCG对增殖和迁移抑制的影响提供了见解,并突出了其诱导肺癌细胞凋亡的潜力。这些结果支持EGCG作为肺癌治疗药物的前景,并进一步加深了我们对其抗癌活性潜在机制的理解。