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Tuerxun G, Li W, Abudurexiti G, Zhuo Q, Tuerdi A, Abulizi G. EPB41L3 Inhibits the Progression of Cervical Cancer Via the ERK/p38 MAPK Signaling Pathway. Mol Biotechnol 2024:10.1007/s12033-024-01172-z. [PMID: 38907071 DOI: 10.1007/s12033-024-01172-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Accepted: 04/02/2024] [Indexed: 06/23/2024]
Abstract
This study was aimed to uncover the character and potential regulatory mechanism of EPB41L3 in cervical cancer (CC). CC cells were injected into BALB/c nude mice (female) to construct a xenograft tumor model. Real-time quantitative polymerase chain reaction (qRT-PCR) and western blot were performed to evaluate the expression of EPB41L3, ERK/p38 MAPK signal markers in CC tissues and cells. Cell counting kit-8 (CCK-8) and Transwell was applied to analyze the viability, invasion, and migration of CC cell lines. EPB41L3 was substantially decreased both in CC tissues and cells. Cell viability, invasion, and migration of CC cells were reduced by overexpressing EPB41L3. Bioinformatics analysis prerdicted that EPB41L3 was strongly related to the ERK/p38 MAPK pathway. Compared with Ad-nc mice, the volume and weight of tumors and ERK/p38 MAPK signal markers were down-regulated in Ad-EPB41L3 mice. After knocking down EPB41L3 with EPB41L3 siRNA (siEPB41L3), the ERK/p38 MAPK pathway was activated. Moreover, SB203580 treatment reversed the effect of EPB41L3 silencing on the improvement in viability, migration, and invasion of CC cells. EPB41L3 suppresses the progression of CC via activating the ERK/p38 MAPK pathway. EPB41L3 may serve as an effective therapeutic target for CC.
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Affiliation(s)
- Gulixian Tuerxun
- Fifth Department of Gynecologic Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, No. 789 East Suzhou Street, Xinshi District, Urumqi, 830000, China
| | - Wenyun Li
- Fifth Department of Gynecologic Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, No. 789 East Suzhou Street, Xinshi District, Urumqi, 830000, China
| | - Guligeina Abudurexiti
- Fifth Department of Gynecologic Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, No. 789 East Suzhou Street, Xinshi District, Urumqi, 830000, China
| | - Qian Zhuo
- Fifth Department of Gynecologic Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, No. 789 East Suzhou Street, Xinshi District, Urumqi, 830000, China
| | - Awahan Tuerdi
- Maternal and Child Health Service Center Shayibake District, Urumqi, China
| | - Guzalinuer Abulizi
- Fifth Department of Gynecologic Surgery, Affiliated Tumor Hospital, Xinjiang Medical University, No. 789 East Suzhou Street, Xinshi District, Urumqi, 830000, China.
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2
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Xia B, Liu J, Sun D, Liu YL, Liu D. Changes in egg production, egg quality and egg nutritional values of laying hens in response to dietary supplementation with green tea water extracts. JOURNAL OF APPLIED ANIMAL RESEARCH 2022. [DOI: 10.1080/09712119.2022.2039155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Bing Xia
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, People’s Republic of China
- Zhejiang Tea Group Co. Ltd., Hangzhou, People’s Republic of China
| | - Jun Liu
- Hangzhou Tea Research Institute, China COOP, Hangzhou, People’s Republic of China
- Zhejiang Key Laboratory of Transboundary Applied Technology for Tea Resources, Hangzhou, People’s Republic of China
| | - Da Sun
- Zhejiang Economics and Trade Polytechnic, Hangzhou, People’s Republic of China
| | - Ya-Li Liu
- The Agriculture Department of Zhejiang Province Bureau of Animal Husbandry and Veterinary Medicine, Hangzhou, People’s Republic of China
| | - Donghong Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, People’s Republic of China
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3
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Gao X, Wang J, Shi J, Sun Q, Jia N, Li H. The Efficacy Mechanism of Epigallocatechin Gallate against Pre-Eclampsia based on Network Pharmacology and Molecular Docking. Reprod Sci 2022; 29:1859-1873. [PMID: 35211881 DOI: 10.1007/s43032-022-00894-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Accepted: 02/16/2022] [Indexed: 12/19/2022]
Abstract
Pre-eclampsia (PE), a pregnancy complication, affects 3-5% of all pregnancies worldwide and is the main cause of maternal and perinatal morbidity. However, there is no drug which can clearly slow this disease progression. Epigallocatechin gallate (EGCG), a natural compound extracted from green tea, has been found to enhance the treatment efficacy of oral nifedipine against pregnancy-induced severe PE. This study aims to clarify the potential targets and pharmacological mechanisms of EGCG in treatment of PE. We used Traditional Chinese Medicine Systems Pharmacology database and Gene Cards database to obtain 179 putative target proteins of EGCG, 550 PE-related hub genes and 39 intersecting targets between EGCG and PE. By using Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses, we got the gene entries and enrichment pathways closely related to the intersecting targets. The top 10 enrichment pathways were pathway in cancer, proteoglycans in cancer, HIF-1 signaling pathway, AGE-RAGE signaling pathway in diabetic complications, TNF signaling pathway, bladder cancer, hepatitis B, IL-17 signaling pathway, toxoplasmosis, PI3K-Akt signaling pathway. Furthermore, compound-target-pathway (CTP) and protein-protein interaction (PPI) network analysis were employed to explore the interaction of the top twelve targets for EGCG in treating PE. Molecular docking analysis showed combinations between these targets and EGCG, and the interaction between EGCG and the targets IL-6 and EGFR was confirmed by using molecular dynamic simulation. In conclusion, these findings hint the underlying mechanism of EGCG in the treatment of PE and point out directions in further studies on PE.
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Affiliation(s)
- Xinru Gao
- Department of Neonatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China.,Northwest Women's and Children's Hospital, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Jiahao Wang
- Health Science Center of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Jiamiao Shi
- Health Science Center of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Qinru Sun
- Institute of Forensic Medicine, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, People's Republic of China
| | - Ning Jia
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, 710061, People's Republic of China.
| | - Hui Li
- Department of Neonatology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi, 710061, People's Republic of China.
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Huang SC, Kao YH, Shih SF, Tsai MC, Lin CS, Chen LW, Chuang YP, Tsui PF, Ho LJ, Lai JH, Chen SJ. Epigallocatechin-3-gallate exhibits immunomodulatory effects in human primary T cells. Biochem Biophys Res Commun 2021; 550:70-76. [PMID: 33689882 DOI: 10.1016/j.bbrc.2021.02.132] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 02/24/2021] [Indexed: 01/07/2023]
Abstract
T cells secrete several inflammatory cytokines that play a critical role in the progression of atherosclerosis. Although green tea epigallocatechin-3-gallate (EGCG) exerts anti-inflammatory and anti-atherosclerotic effects in animals, few studies have identified the mechanism underlying these effects in human primary T cells. This study investigated the pathway involved in EGCG modulation of cytokine secretion in activated human primary T cells. We pre-treated human primary T cells with EGCG (0.1, 1, 5, 10, and 20 μM) for 4 h and incubated them with or without phorbol 12-myristate 13-acetate and ionomycin (P/I) for 20 h. The cytokine production, activator protein (AP)-1 binding activity, and level of mitogen-activated protein kinase (MAPK) were assessed using enzyme-linked immunosorbent assay, electrophoretic mobility shift assay, and Western blotting, respectively. At 10 and 20 μM, EGCG decreased interleukin (IL)-2 levels by 26.0% and 38.8%, IL-4 levels by 41.5% and 55.9%, INF-γ levels by 31.3% and 34.7%, and tumor-necrosis factor (TNF)-α levels by 23.0% and 37.6%, respectively. In addition, the level of phosphorylated c-Jun N-terminal (p-JNK) and extracellular signal-regulated kinase (p-ERK) was decreased, but not the level of p-p38 MAPK. EGCG did not alter any of the total protein amounts, suggesting a selective effect on specific types of MAPKs in stimulated human T cells. EGCG tended to inactivate AP-1 DNA-binding activity. The P/I-induced production of IL-2, IL-4, INF-γ, and TNF-α by human T cells was suppressed by AP-1 inhibitor in a concentration-dependent manner. In conclusion, EGCG suppressed cytokine secretion in activated human primary T cells, and this effect was likely mediated by AP-1 inactivation through the ERK and JNK, but not p38 MAPK, pathways. These results may be related to the mechanisms through which EGCG inhibits immune- or inflammation-related atherogenesis.
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Affiliation(s)
- Shih-Chung Huang
- Division of Cardiology, Department of Medicine, Kaohsiung Armed Forces General Hospital, Taiwan
| | - Yung-Hsi Kao
- Department of Life Sciences, National Central University, Jhongli, Taoyuan, 32001, Taiwan
| | - Shao-Fu Shih
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Min-Chien Tsai
- Department of Physiology and Biophysics, Graduate Institute of Physiology, National Defense Medical Center, Taipei, Taiwan
| | - Chin-Sheng Lin
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Liv Weichien Chen
- Division of Cardiology, Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, 11490, Taiwan
| | - Yi-Ping Chuang
- Department and Graduate Institute of Microbiology and Immunology, National Defense Medical Center, Taipei, Taiwan
| | - Pi-Fen Tsui
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Ling-Jun Ho
- Institute of Cellular and System Medicine, National Health Research Institute, Zhunan, Miaoli, Taiwan
| | - Jenn-Haung Lai
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University, Gueishan, Taoyuan, Taiwan
| | - Sy-Jou Chen
- Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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Wang Y, Yang Q, Lin P, Li C, Lu Y, Daijun S. The Effect of Supplementing Tea Polyphenols in Diet of Laying Hens on Yolk Cholesterol Content and Production Performance. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2021. [DOI: 10.1590/1806-9061-2020-1356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Y Wang
- Southwest University, China; Southwest University, China
| | - Q Yang
- Southwest University, China; Southwest University, China
| | - P Lin
- Southwest University, China; Southwest University, China
| | - C Li
- Southwest University, China
| | - Y Lu
- Southwest University, China
| | - S Daijun
- Southwest University, China; Southwest University, China
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Betel Nut Arecoline Induces Different Phases of Growth Arrest between Normal and Cancerous Prostate Cells through the Reactive Oxygen Species Pathway. Int J Mol Sci 2020; 21:ijms21239219. [PMID: 33287214 PMCID: PMC7729937 DOI: 10.3390/ijms21239219] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 11/27/2020] [Accepted: 12/02/2020] [Indexed: 12/31/2022] Open
Abstract
Prostate cancer (PCa) is a reproductive system cancer in elderly men. We investigated the effects of betel nut arecoline on the growth of normal and cancerous prostate cells. Normal RWPE-1 prostate epithelial cells, androgen-independent PC-3 PCa cells, and androgen-dependent LNCaP PCa cells were used. Arecoline inhibited their growth in dose- and time-dependent manners. Arecoline caused RWPE-1 and PC-3 cell cycle arrest in the G2/M phase and LNCaP cell arrest in the G0/G1 phase. In RWPE-1 cells, arecoline increased the expression of cyclin-dependent kinase (CDK)-1, p21, and cyclins B1 and D3, decreased the expression of CDK2, and had no effects on CDK4 and cyclin D1 expression. In PC-3 cells, arecoline decreased CDK1, CDK2, CDK4, p21, p27, and cyclin D1 and D3 protein expression and increased cyclin B1 protein expression. In LNCaP cells, arecoline decreased CDK2, CDK4, and cyclin D1 expression; increased p21, p27, and cyclin D3 expression; had no effects on CDK1 and cyclin B1 expression. The antioxidant N-acetylcysteine blocked the arecoline-induced increase in reactive oxygen species production, decreased cell viability, altered the cell cycle, and changed the cell cycle regulatory protein levels. Thus, arecoline oxidant exerts differential effects on the cell cycle through modulations of regulatory proteins.
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7
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Chakraborty K, Dey A, Bhattacharyya A, Dasgupta SC. Anti-fibrotic effect of black tea (Camellia sinensis) extract in experimental pulmonary fibrosis. Tissue Cell 2019; 56:14-22. [DOI: 10.1016/j.tice.2018.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 11/27/2018] [Accepted: 11/28/2018] [Indexed: 12/17/2022]
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Khiewkamrop P, Phunsomboon P, Richert L, Pekthong D, Srisawang P. Epistructured catechins, EGCG and EC facilitate apoptosis induction through targeting de novo lipogenesis pathway in HepG2 cells. Cancer Cell Int 2018; 18:46. [PMID: 29588626 PMCID: PMC5863485 DOI: 10.1186/s12935-018-0539-6] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Accepted: 03/13/2018] [Indexed: 02/06/2023] Open
Abstract
Background Abnormally high expression of the mammalian de novo lipogenesis (DNL) pathway in various cancer cells promotes cell over-proliferation and resistance to apoptosis. Inhibition of key enzymes in the DNL pathway, namely, ATP citrate lyase, acetyl-CoA carboxylase, and fatty acid synthase (FASN) can increase apoptosis without cytotoxicity to non-cancerous cells, leading to the search for and presentation of novel selective and powerful targets for cancer therapy. Previous studies reported that epistructured catechins, epigallocatechin gallate (EGCG) and epicatechin (EC) exhibit different mechanisms regarding a strong inducer of apoptosis in various cancer cell lines. Thus, the current study investigated the growth inhibitory effect of EGCG and EC, on the enzyme expression and activity of the DNL pathway, which leads to the prominent activity of carnitine palmitoyl transferase-1 (CPT-1) mediating apoptosis in HepG2 cells. Methods The cytotoxicity on HepG2 cells of EGCG and EC was determined by MTT assay. Cell death caused by apoptosis, the dissipation of mitochondrial membrane potential (MMP), and cell cycle arrest were then detected by flow cytometry. We further investigated the decrease of fatty acid levels associated with DNL retardation, followed by evaluation of DNL protein expression. Then, the negative inhibitory effect of depleted fatty acid synthesis on malonyl-CoA synthesis followed by regulating of CPT-1 activity was investigated. Thereafter, we inspected the enhanced reactive oxygen species (ROS) generation, which is recognized as one of the causes of apoptosis in HepG2 cells. Results We found that EGCG and EC decreased cancer cell viability by increasing apoptosis as well as causing cell cycle arrest in HepG2 cells. Apoptosis was associated with MMP dissipation. Herein, EGCG and EC inhibited the expression of FASN enzymes contributing to decreasing fatty acid levels. Notably, this decrease consequently showed a suppressing effect on the CPT-1 activity. We suggest that epistructured catechin-induced apoptosis targets CPT-1 activity suppression mediated through diminishing the DNL pathway in HepG2 cells. In addition, increased ROS production was found after treatment with EGCG and EC, indicating oxidative stress mechanism-induced apoptosis. The strong apoptotic effect of EGCG and EC was specifically absent in primary human hepatocytes. Conclusion Our supportive evidence confirms potential alternative cancer treatments by EGCG and EC that selectively target the DNL pathway.
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Affiliation(s)
- Phuriwat Khiewkamrop
- 1Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000 Thailand
| | - Pattamaphron Phunsomboon
- 2Clinical Research Unit Floor 5 His Majesty's 7th Cycle Birthday Anniversary 2, Faculty of Medicine, Naresuan University, Phitsanulok, 65000 Thailand
| | - Lysiane Richert
- KaLy-Cell, 20A rue du Général Leclerc, 67115 Plobsheim, France.,Laboratoire de Toxicologie Cellulaire, Université de Bourgogne Franche-Comté, EA 4267, Besançon, France
| | - Dumrongsak Pekthong
- 5Department of Pharmacy Practice, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, 65000 Thailand
| | - Piyarat Srisawang
- 1Department of Physiology, Faculty of Medical Science, Naresuan University, Phitsanulok, 65000 Thailand
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Xia B, Liu Y, Sun D, Liu J, Zhu Y, Lu L. Effects of green tea powder supplementation on egg production and egg quality in laying hens. JOURNAL OF APPLIED ANIMAL RESEARCH 2018. [DOI: 10.1080/09712119.2018.1431240] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Bing Xia
- Hangzhou Tea Research Institute, China COOP, Hangzhou, People’s Republic of China
| | - Yali Liu
- The Agriculture Department of Zhejiang Province Bureau of Animal Husbandry and Veterinary Medicine, Hangzhou, People’s Republic of China
| | - Da Sun
- Zhejiang Economics and Trade Polytechnic, Hangzhou, People’s Republic of China
| | - Jun Liu
- Hangzhou Tea Research Institute, China COOP, Hangzhou, People’s Republic of China
| | - Yuejin Zhu
- Hangzhou Tea Research Institute, China COOP, Hangzhou, People’s Republic of China
| | - Lizhi Lu
- Institute of Animal Husbandry and Veterinaty Science, Zhejiang Academy of Agricultural Science, Hangzhou, People’s Republic of China
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Lim W, Yang C, Jeong M, Bazer FW, Song G. Coumestrol induces mitochondrial dysfunction by stimulating ROS production and calcium ion influx into mitochondria in human placental choriocarcinoma cells. Mol Hum Reprod 2017; 23:786-802. [DOI: 10.1093/molehr/gax052] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Accepted: 10/06/2017] [Indexed: 12/11/2022] Open
Affiliation(s)
- Whasun Lim
- Department of Biomedical Sciences, Catholic Kwandong University, Gangneung 25601, Republic of Korea
| | - Changwon Yang
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Muhah Jeong
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Fuller W Bazer
- Department of Animal Science, Center for Animal Biotechnology and Genomics, Texas A&M University, College Station, 77843–2471, TX, USA
| | - Gwonhwa Song
- Department of Biotechnology, Institute of Animal Molecular Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul 02841, Republic of Korea
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Maher HM, Alzoman NZ, Shehata SM, Abahussain AO. UPLC-ESI-MS/MS study of the effect of green tea extract on the oral bioavailability of erlotinib and lapatinib in rats: Potential risk of pharmacokinetic interaction. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1049-1050:30-40. [PMID: 28260629 DOI: 10.1016/j.jchromb.2017.02.029] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/24/2017] [Accepted: 02/26/2017] [Indexed: 02/06/2023]
Abstract
Green tea (GT) is one of the most consumed beverages worldwide. Tyrosine kinase inhibitors (TKIs) belong to the oral targeted therapy that gained much interest in oncology practice, among which are erlotinib (ERL) and lapatinib (LAP). Since green tea polyphenols (GTP) are known to be inhibitors of receptor tyrosine kinases, GTE could likely potentiate the anticancer effect of TKIs, but with a possibility of pharmacokinetic (PK) interaction with co-administered TKIs. In this study, the effect of GTE on the PK of ERL/LAP in rats was studied. UPLC-ESI-MS/MS method has been developed and validated for the quantification of ERL and LAP in rat plasma, using gefitinib (GEF) as the internal standard. Plasma samples were treated extensively by protein precipitation (PPT) followed by solid phase extraction (SPE) using octadecyl C 18/14% cartridges. Chromatographic analysis was carried out on Acquity UPLC BEH™ C18 column with a mobile phase consisting of water: acetonitrile (20: 80, v/v), each with 0.15% formic acid. Quantification was performed in the positive electrospray ionization (ESI+) mode with multiple reaction monitoring (MRM) of the transitions m/z 394.29→278.19 (ERL), m/z 581.07→365.13 (LAP), and m/z 447.08→128.21 (GEF). The method was fully validated as per the FDA guidelines showing linearity over the range of 0.4-1000 (ERL) and 0.6-1000 (LAP) ng/mL with very low lower limit of quantification (LLOQ) of 0.4 and 0.6ng/mL for ERL and LAP, respectively. The applicability of the method was extended to perform a comparative study of the PK of ERL/LAP following short-term and long-term administration of GTE, compared with their single oral administration. The results revealed that a significant reduction in the oral bioavailability was recorded with both ERL and LAP following the ingestion of GTE particularly for short-term administration. A reduction in Cmax (AUC) by 67.60% (69.50%) and 70.20% (73.96%), was recorded with short-term administration of GTE, compared with only 16.03% (21.09%) and 13.53% (22.12%) reduction for ERL and LAP, respectively, with long-term administration. Thus patients taking TKIs should preferably avoid drinking GT or ingesting GTE capsules during the period of treatment with TKIs.
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Affiliation(s)
- Hadir M Maher
- College of Pharmacy, Department of Pharmaceutical Chemistry, King Saud University, Riyadh 11495, P.O. Box 22452, Saudi Arabia; Faculty of Pharmacy, Department of Pharmaceutical Analytical Chemistry, University of Alexandria, El-Messalah, Alexandria 21521, Egypt.
| | - Nourah Z Alzoman
- College of Pharmacy, Department of Pharmaceutical Chemistry, King Saud University, Riyadh 11495, P.O. Box 22452, Saudi Arabia
| | - Shereen M Shehata
- College of Pharmacy, Department of Pharmaceutical Chemistry, King Saud University, Riyadh 11495, P.O. Box 22452, Saudi Arabia
| | - Ashwag O Abahussain
- College of Pharmacy, Department of Pharmaceutical Chemistry, King Saud University, Riyadh 11495, P.O. Box 22452, Saudi Arabia
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Shih LJ, Chen TF, Lin CK, Liu HS, Kao YH. Green tea (-)-epigallocatechin gallate inhibits the growth of human villous trophoblasts via the ERK, p38, AMP-activated protein kinase, and protein kinase B pathways. Am J Physiol Cell Physiol 2016; 311:C308-21. [PMID: 27147558 DOI: 10.1152/ajpcell.00003.2016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 06/20/2016] [Indexed: 11/22/2022]
Abstract
Green tea catechins, especially (-)-epigallocatechin gallate (EGCG), have been reported to circulate in the placenta of animals and blood of humans after consumption. Whether EGCG regulates activity of human villous trophoblasts (HVT) is unknown. This study investigated the pathways involved in EGCG modulation of trophoblast mitogenesis. EGCG inhibited trophoblast proliferation in a dose-dependent and time-dependent manner, as indicated by the number of cells and incorporation of bromodeoxyuridine (BrdU). EGCG was more effective than other green tea catechins in inhibiting cell growth. EGCG also increased the phosphorylation of the MAPK pathway proteins, ERK1/2, and p38, but not JNK. Furthermore, EGCG had no effects on the total amounts of ERK1/2, p38 MAPK, and JNK proteins. This suggests that EGCG selectively affects particular MAPK subfamilies. Pretreatment with specific inhibitors of ERK1/2, p38 MAPK, and AMP-activated protein kinase (AMPK) antagonized EGCG-induced decreases in both cell number and BrdU incorporation. These inhibitors also blocked EGCG-induced increases in the levels of phospho-ERK1/2, phospho-p38, and phospho-AMPK proteins, respectively. Moreover, EGCG was similar to the phosphatidylinositol 3-kinase inhibitors wortmannin and LY-294002 to decrease protein kinase B (AKT) phosphorylation, cell number, and BrdU incorporation. These data imply that EGCG inhibits the growth of HVT through the ERK, p38, AMPK, and AKT pathways.
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Affiliation(s)
- Li-Jane Shih
- Department of Life Sciences, National Central University, Jhongli, Taoyuan, Taiwan; and Taoyuan Armed Forces General Hospital, Longtan, Taoyuan, Taiwan
| | - Tz-Fang Chen
- Taoyuan Armed Forces General Hospital, Longtan, Taoyuan, Taiwan
| | - Cheng-Kuo Lin
- Taoyuan Armed Forces General Hospital, Longtan, Taoyuan, Taiwan
| | - Hang-Shen Liu
- Taoyuan Armed Forces General Hospital, Longtan, Taoyuan, Taiwan
| | - Yung-Hsi Kao
- Department of Life Sciences, National Central University, Jhongli, Taoyuan, Taiwan; and
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