ArticleOncoTargets and therapy2019
EGCG overcomes gefitinib resistance by inhibiting autophagy and augmenting cell death through targeting ERK phosphorylation in NSCLC.
Article in OncoTargets and therapy, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.
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Who cites it
39 citing papers in PubMed, 1 synthesis or guideline pooled it, 64 citations in OpenAlex.
- Combination Chemotherapy with Selected Polyphenols in Preclinical and Clinical Studies-An Update Overview.Molecules (Basel, Switzerland) · 2023Pooled it
- EGCG targeting autophagy in cardiovascular diseases: mechanisms and therapeutic potential.Molecular biology reports · 2026Review
- Review
- Effects of Epigallocatechin Gallate Against Lung Cancer: Mechanisms of Action and Therapeutic Potential.Nutrients · 2026Review
- Natural compounds for non-small cell lung cancer treatment: focus on the EGFR signaling pathway.Frontiers in pharmacology · 2026Review
- Synergistic Enhancement of Osimertinib Efficacy in Non-small Cell Lung Cancer Cells Through Epigallocatechin-3-Gallate: Mechanistic Insights Into YAP/TEAD/CTGF Axis Inhibition.Advanced pharmaceutical bulletin · 2025Article
- Natural anti-cancer products: insights from herbal medicine.Chinese medicine · 2025Review
- Blockage of Autophagy for Cancer Therapy: A Comprehensive Review.International journal of molecular sciences · 2024Review
- LncRNA MACC1-AS1 induces gemcitabine resistance in pancreatic cancer cells through suppressing ferroptosis.Cell death discovery · 2024Article
- Natural Product-Based Glycolysis Inhibitors as a Therapeutic Strategy for Epidermal Growth Factor Receptor-Tyrosine Kinase Inhibitor-Resistant Non-Small Cell Lung Cancer.International journal of molecular sciences · 2024Review
- Exploiting Nanotechnology for Drug Delivery: Advancing the Anti-Cancer Effects of Autophagy-Modulating Compounds in Traditional Chinese Medicine.International journal of nanomedicine · 2024Review
- What nature has to offer: Opportunities for immuno-oncology.Journal of food and drug analysis · 2023Review
- Delineating the twin role of autophagy in lung cancer.Biologia futura · 2023Review
- Application of Polyphenols and Flavonoids in Oncological Therapy.Molecules (Basel, Switzerland) · 2023Review
- Targeting Glutaminolysis Shows Efficacy in Both Prednisolone-Sensitive and in Metabolically Rewired Prednisolone-Resistant B-Cell Childhood Acute Lymphoblastic Leukaemia Cells.International journal of molecular sciences · 2023Article
- Research progress of traditional Chinese medicine as sensitizer in reversing chemoresistance of colorectal cancer.Frontiers in oncology · 2023Review
- Focusing on the Role of Natural Products in Overcoming Cancer Drug Resistance: An Autophagy-Based Perspective.Biomolecules · 2022Review
- The Potential of Epigallocatechin Gallate (EGCG) in Targeting Autophagy for Cancer Treatment: A Narrative Review.International journal of molecular sciences · 2022Review
- Inhibitory Mechanism of Combined Hydroxychavicol With Epigallocatechin-3-Gallate Against Glioma Cancer Cell Lines: A Transcriptomic Analysis.Frontiers in pharmacology · 2022Article
- Theabrownins Produced via Chemical Oxidation of Tea Polyphenols Inhibit Human Lung Cancer CellsFrontiers in nutrition · 2022Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundSeveral EGFR-tyrosine kinase inhibitors (TKIs), such as gefitinib (Gef), have been used as effective clinical therapies for patients with non-small cell lung cancer (NSCLC). However, due to acquired resistance, the efficacy of Gef treatment is severely blocked. Our preliminary study found that epigallocatechin gallate (EGCG) in combination with Gef could work synergistically to increase the sensitivity to Gef in NSCLC, but the mechanisms responsible for this have not been completely defined. PURPOSE: In our present study, we devoted to investigate the synergistic effects of combined EGCG and Gef treatment and the importance of autophagy and ERK signaling pathway in overcoming acquired drug resistance to Gef in NSCLC.
methodsWe evaluated the synergistic effects of combined EGCG and Gef treatment through in vitro cell proliferation/viability assays and in vivo xenograft studies, respectively. Autophagic flux was assessed by GFP-microtubule-associated protein 1 light chain 3 (LC3) plasmid transfection and western blot detection of autophagy-related proteins. Besides, the role of ERK on acquired resistance was validated with a ERK inhibitor.
resultsWe discovered that EGCG can synergize with Gef to inhibit the proliferation of Gef-resistant NSCLC cells and suppress tumor growth in a xenograft mouse model. The underlying mechanisms of synergism were investigated, and the results showed that co-treatment with Gef and EGCG could inhibit Gef-induced autophagy and ERK phosphorylation. Consistently, the expression of LC3-II/I and ATG5 were inhibited, whereas the expression of p62 was enhanced in EGCG and Gef combination treatment groups. Further, inhibition of autophagy in Gef-resistant A549 cells could augment cell death.
conclusionIn conclusion, EGCG overcomes Gef resistance by inhibiting autophagy and augmenting cell death through targeting ERK pathway in NSCLC. Gef and EGCG combination therapy may be an effective strategy to overcome acquired resistance in NSCLC.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.