Journal
CHEMICO-BIOLOGICAL INTERACTIONS
Volume 365, Issue -, Pages -Publisher
ELSEVIER IRELAND LTD
DOI: 10.1016/j.cbi.2022.110084
Keywords
Non-small cell lung cancer (NSCLC); EGFR extracellular domain; PBOG; Apoptosis; Molecular simulation
Funding
- National Nature Science Foundation of China [21602196, 31960075, 31760226]
- Science and Technology Project of Yunnan Province [g 2017ZF003, 2017FG001-046]
- Yunnan Provincial Key Pro- grams of Yunnan Eco-friendly Food International Cooperation Research Center Project [2019ZG00904, 2019ZG00909]
Ask authors/readers for more resources
The active substance PBOG in green tea inhibits the proliferation and migration of non-small cell lung cancer cells, promotes cell apoptosis, and inhibits cell cycle progression. It can also change the secondary structure of the protein, inhibit EGFR phosphorylation, and inhibit tumor growth.
Non-small cell lung cancer (NSCLC) is one of the most general malignant tumors. The overexpression of epidermal growth factor receptor (EGFR) is a common marker in NSCLC, and it plays an important role in the proliferation, invasion, and metastasis of cancer cells. At present, drugs developed with EGFR as a target suffer from drug resistance, so it is necessary to study new compounds for the treatment of NSCLC. The active substance in green tea is EGCG, which has anti-cancer effects. In this study, we synthesized dimeric-(-)-epigallocatechin-3-gallate (prodelphinidin B-4-3,3'''-di-O-gallate, PBOG), and explored the effect of PBOG on lung cancer cells. PBOG can inhibit the proliferation and migration of NCI-H1975 cells, promote cell apoptosis, and inhibit cell cycle progression. In addition, PBOG can bind to the EGFR ectodomain protein and change the secondary structure of the protein. At the same time, PBOG decreases the expression of EGFR and downstream protein phosphorylation. Animal experiments confirmed that PBOG can inhibit tumor growth by inhibiting EGFR phosphorylation. Collectively, our study results show that PBOG may induce a decrease in intracellular phosphorylated EGFR expression by binding to the EGFR ectodomain protein, thereby inducing apoptosis and inhibiting cell cycle progression, thus providing a new strategy to treat lung cancer.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available