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Wen L, Liu Z, Zhou L, Liu Z, Li Q, Geng B, Xia Y. Bone and Extracellular Signal-Related Kinase 5 (ERK5). Biomolecules 2024; 14:556. [PMID: 38785963 PMCID: PMC11117709 DOI: 10.3390/biom14050556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/17/2024] [Accepted: 05/01/2024] [Indexed: 05/25/2024] Open
Abstract
Bones are vital for anchoring muscles, tendons, and ligaments, serving as a fundamental element of the human skeletal structure. However, our understanding of bone development mechanisms and the maintenance of bone homeostasis is still limited. Extracellular signal-related kinase 5 (ERK5), a recently identified member of the mitogen-activated protein kinase (MAPK) family, plays a critical role in the pathogenesis and progression of various diseases, especially neoplasms. Recent studies have highlighted ERK5's significant role in both bone development and bone-associated pathologies. This review offers a detailed examination of the latest research on ERK5 in different tissues and diseases, with a particular focus on its implications for bone health. It also examines therapeutic strategies and future research avenues targeting ERK5.
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Affiliation(s)
- Lei Wen
- Department of Orthopedics, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; (L.W.); (Z.L.); (L.Z.); (Z.L.); (Q.L.); (B.G.)
- Orthopedic Clinical Medical Research Center and Intelligent Orthopedic Industry Technology Center of Gansu Province, Lanzhou 730030, China
- Department of Orthopedics and Trauma Surgery, Affiliated Hospital of Yunnan University, Kunming 650032, China
| | - Zirui Liu
- Department of Orthopedics, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; (L.W.); (Z.L.); (L.Z.); (Z.L.); (Q.L.); (B.G.)
- Orthopedic Clinical Medical Research Center and Intelligent Orthopedic Industry Technology Center of Gansu Province, Lanzhou 730030, China
| | - Libo Zhou
- Department of Orthopedics, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; (L.W.); (Z.L.); (L.Z.); (Z.L.); (Q.L.); (B.G.)
- Orthopedic Clinical Medical Research Center and Intelligent Orthopedic Industry Technology Center of Gansu Province, Lanzhou 730030, China
| | - Zhongcheng Liu
- Department of Orthopedics, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; (L.W.); (Z.L.); (L.Z.); (Z.L.); (Q.L.); (B.G.)
- Orthopedic Clinical Medical Research Center and Intelligent Orthopedic Industry Technology Center of Gansu Province, Lanzhou 730030, China
| | - Qingda Li
- Department of Orthopedics, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; (L.W.); (Z.L.); (L.Z.); (Z.L.); (Q.L.); (B.G.)
- Orthopedic Clinical Medical Research Center and Intelligent Orthopedic Industry Technology Center of Gansu Province, Lanzhou 730030, China
| | - Bin Geng
- Department of Orthopedics, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; (L.W.); (Z.L.); (L.Z.); (Z.L.); (Q.L.); (B.G.)
- Orthopedic Clinical Medical Research Center and Intelligent Orthopedic Industry Technology Center of Gansu Province, Lanzhou 730030, China
| | - Yayi Xia
- Department of Orthopedics, The Second Hospital & Clinical Medical School, Lanzhou University, Lanzhou 730030, China; (L.W.); (Z.L.); (L.Z.); (Z.L.); (Q.L.); (B.G.)
- Orthopedic Clinical Medical Research Center and Intelligent Orthopedic Industry Technology Center of Gansu Province, Lanzhou 730030, China
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Zhang Q, Gao X, Duan X, Liang H, Gao M, Dong D, Guo C, Huang L. Design, synthesis and SAR of novel 7-azaindole derivatives as potential Erk5 kinase inhibitor with anticancer activity. Bioorg Med Chem 2023; 95:117503. [PMID: 37862935 DOI: 10.1016/j.bmc.2023.117503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/30/2023] [Accepted: 10/13/2023] [Indexed: 10/22/2023]
Abstract
The extracellular signal-regulated kinase 5 (Erk5) signaling plays a crucial role in cancer, and regulating its activity may have potential in cancer chemotherapy. In this study, a series of novel 7-azaindole derivatives (4a-5o) were designed and synthesized. Their antitumor activities on human lung cancer A549 cells was evaluated by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay, 4',6-diamidino-2-phenylindole (DAPI) staining and colony formation assay. Among them, compounds 4a, 4 h, 5d and 5j exhibited good anti-proliferative activity with the IC50 values of 6.23 µg/mL, 8.52 µg/mL, 7.33 µg/mL and 4.56 µg/mL, respectively, equivalent to Erk5 positive control XMD8-92 (IC50 = 5.36 µg/mL). The results of structure-activity relationships (SAR) showed that double bond on the piperidine ring and N atoms at the N7 position of 7-azaindole was essential for their antiproliferative activity. Furthermore, compounds 4a and 5j exhibited good inhibition on Erk5 kinase through Western blot analysis and possible action site of compounds with Erk5 kinase was elucidated by molecular docking.
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Affiliation(s)
- Qin Zhang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Xintao Gao
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Xiyu Duan
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Han Liang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Mingyuan Gao
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Dianquan Dong
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China
| | - Chuanlong Guo
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China.
| | - Longjiang Huang
- State Key Laboratory Base for Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, 266042 Qingdao, Shandong, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica Chinese Academy of Medical Sciences and Peking Union Medical College, 100050 Beijing, China.
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Liang Z, Zhang Y, Xu Y, Zhang X, Wang Y. Hesperidin inhibits tobacco smoke-induced pulmonary cell proliferation and EMT in mouse lung tissues via the p38 signaling pathway. Oncol Lett 2022; 25:30. [PMID: 36589667 PMCID: PMC9773313 DOI: 10.3892/ol.2022.13616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Accepted: 11/11/2022] [Indexed: 11/30/2022] Open
Abstract
Tobacco smoke (TS) is the major cause of lung cancer. The abnormal proliferation and epithelial-mesenchymal transition (EMT) of lung cells promote occurrence and development of lung cancer. The p38 pathway intervenes in this cancer development. Hesperidin also serves a role in human health and disease prevention. The roles of p38 in TS-mediated abnormal cell proliferation and EMT, and the hesperidin intervention thereof are not yet understood. In the present study, it was demonstrated that TS upregulated proliferating cell nuclear antigen, vimentin and N-cadherin expression, whereas it downregulated E-cadherin expression, as assessed using western blotting and reverse transcription-quantitative PCR. Furthermore, it was observed that inhibition of the p38 pathway inhibit TS-induced proliferation and EMT. Hesperidin treatment prevented the TS-induced activation of the p38 pathway, EMT and cell proliferation in mouse lungs. The findings of the present study may provide insights into the pathogenesis of TS-related lung cancer.
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Affiliation(s)
- Zhaofeng Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China,Correspondence to: Professor Zhaofeng Liang, Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu 212013, P.R. China, E-mail:
| | - Yue Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yumeng Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Xinyi Zhang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Yanan Wang
- Department of Clinical Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, Suzhou, Jiangsu 215002, P.R. China,Dr Yanan Wang, Department of Clinical Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Gusu School, 16 Baita West Road, Suzhou, Jiangsu 215002, P.R. China, E-mail:
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4
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Sun SY. Targeting apoptosis to manage acquired resistance to third generation EGFR inhibitors. Front Med 2022; 16:701-713. [PMID: 36152124 DOI: 10.1007/s11684-022-0951-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 06/28/2022] [Indexed: 11/28/2022]
Abstract
A significant clinical challenge in lung cancer treatment is management of the inevitable acquired resistance to third-generation epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (EGFR-TKIs), such as osimertinib, which have shown remarkable success in the treatment of advanced NSCLC with EGFR activating mutations, in order to achieve maximal response duration or treatment remission. Apoptosis is a major type of programmed cell death tightly associated with cancer development and treatment. Evasion of apoptosis is considered a key hallmark of cancer and acquisition of apoptosis resistance is accordingly a key mechanism of drug acquired resistance in cancer therapy. It has been clearly shown that effective induction of apoptosis is a key mechanism for third generation EGFR-TKIs, particularly osimertinib, to exert their therapeutic efficacies and the development of resistance to apoptosis is tightly associated with the emergence of acquired resistance. Hence, restoration of cell sensitivity to undergo apoptosis using various means promises an effective strategy for the management of acquired resistance to third generation EGFR-TKIs.
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Affiliation(s)
- Shi-Yong Sun
- Department of Hematology and Medical Oncology, Emory University School of Medicine and Winship Cancer Institute of Emory University, Atlanta, GA, 30322, USA.
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Inhibition of MEK5/ERK5 signaling overcomes acquired resistance to the third generation EGFR inhibitor, osimertinib, via enhancing Bim-dependent apoptosis. Cancer Lett 2021; 519:141-149. [PMID: 34245854 DOI: 10.1016/j.canlet.2021.07.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/15/2021] [Accepted: 07/06/2021] [Indexed: 11/22/2022]
Abstract
The promising therapeutic efficacy of the third generation EGFR inhibitor, osimertinib (AZD9291), for the treatment of patients with EGFR-mutant non-small cell lung cancer (NSCLC) has been demonstrated in the clinic both as first-line and second line therapy. However, inevitable acquired resistance limits its long-term benefit to patients and is thus a significant clinical challenge. The current study focuses on studying the potential role of targeting MEK5-ERK5 signaling in overcoming acquired resistance to osimertinib. Osimertinib and other third generation EGFR inhibitors exerted a rapid and sustained suppressive effect on ERK5 phosphorylation primarily in EGFR-mutant NSCLC cell lines and lost this activity in some osimertinib-resistant cell lines. Osimertinib combined with either ERK5 or MEK5 inhibitors synergistically decreased the survival of osimertinib-resistant cell lines with enhanced induction of apoptosis primarily via augmenting Bim expression. Moreover, the combination effectively inhibited the growth of osimertinib-resistant xenografts in vivo. Together, these findings suggest the potential role of MEK5-ERK5 signaling in modulating development of acquired resistance to osimertinib and value of targeting this signaling as a potential strategy in overcoming acquired resistance to osimertinib and possibly other third generation EGFR inhibitors.
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Jiang W, Cai F, Xu H, Lu Y, Chen J, Liu J, Cao N, Zhang X, Chen X, Huang Q, Zhuang H, Hua ZC. Extracellular signal regulated kinase 5 promotes cell migration, invasion and lung metastasis in a FAK-dependent manner. Protein Cell 2020; 11:825-845. [PMID: 32144580 PMCID: PMC7647985 DOI: 10.1007/s13238-020-00701-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 02/09/2020] [Indexed: 12/12/2022] Open
Abstract
This study was designed to evaluate ERK5 expression in lung cancer and malignant melanoma progression and to ascertain the involvement of ERK5 signaling in lung cancer and melanoma. We show that ERK5 expression is abundant in human lung cancer samples, and elevated ERK5 expression in lung cancer was linked to the acquisition of increased metastatic and invasive potential. Importantly, we observed a significant correlation between ERK5 activity and FAK expression and its phosphorylation at the Ser910 site. Mechanistically, ERK5 increased the expression of the transcription factor USF1, which could transcriptionally upregulate FAK expression, resulting in FAK signaling activation to promote cell migration. We also provided evidence that the phosphorylation of FAK at Ser910 was due to ERK5 but not ERK1/2, and we then suggested a role for Ser910 in the control of cell motility. In addition, ERK5 had targets in addition to FAK that regulate epithelial-to-mesenchymal transition and cell motility in cancer cells. Taken together, our findings uncover a cancer metastasis-promoting role for ERK5 and provide the rationale for targeting ERK5 as a potential therapeutic approach.
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Affiliation(s)
- Weiwei Jiang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Fangfang Cai
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Huangru Xu
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Yanyan Lu
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Jia Chen
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Jia Liu
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Nini Cao
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Xiangyu Zhang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Xiao Chen
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Qilai Huang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China
| | - Hongqin Zhuang
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China.
| | - Zi-Chun Hua
- The State Key Laboratory of Pharmaceutical Biotechnology, College of Life Sciences, Nanjing University, Nanjing, 210023, China. .,Changzhou High-Tech Research Institute of Nanjing University and Jiangsu TargetPharma Laboratories Inc., Changzhou, 213164, China.
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Chen Y, Chen JQ, Ge MM, Zhang Q, Wang XQ, Zhu JY, Xie CF, Li XT, Zhong CY, Han HY. Sulforaphane inhibits epithelial-mesenchymal transition by activating extracellular signal-regulated kinase 5 in lung cancer cells. J Nutr Biochem 2019; 72:108219. [PMID: 31473507 DOI: 10.1016/j.jnutbio.2019.108219] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 06/06/2019] [Accepted: 07/24/2019] [Indexed: 12/27/2022]
Abstract
Epithelial-mesenchymal transition (EMT) contributes to the initiation, invasion, metastasis and drug resistance of cancer. The function of extracellular signal-regulated kinase 5 (ERK5) in lung cancer progression remains elusive. In this study, we investigated the effect of sulforaphane (SFN) on lung cancer EMT and the role of ERK5 in its effect. Wound healing and Transwell assays were applied to examine the migratory and invasive capacity in vitro. Quantitative real-time polymerase chain reaction and immunoblotting analysis were performed to investigate the expression of mRNA and protein levels. Small-interfering RNA was used to silence ERK5. Xenograft model was used to confirm the effect of SFN in vivo. Enhanced EMT and decreased ERK5 activation were observed in lung cancer cells in comparison with normal human bronchial epithelial cells. SFN diminished the migratory and invasive capacity of lung cancer cells. Additionally, significantly increased expression of epithelial markers (E-cadherin and ZO-1), decreased expression of mesenchymal markers (N-cadherin and Snail1) and activation of ERK5 were observed after SFN treatment. The inhibitory effect of SFN on lung cancer cell EMT was attenuated by ERK5 silencing. SFN-induced EMT suppression and ERK5 activation were further confirmed in lung cancer xenograft mouse model. The present study illustrated for the first time that ERK5 activation mediates SFN suppression of lung cancer cell EMT. These findings could provide new insights into the function of ERK5 in EMT regulation and the potential therapeutic application of SFN in cancer intervention.
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Affiliation(s)
- Yue Chen
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jia-Qi Chen
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Miao-Miao Ge
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Qi Zhang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xue-Qi Wang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jian-Yun Zhu
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China; Suzhou Digestive Diseases and Nutrition Research Center, Suzhou Municipal Hospital, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Chun-Feng Xie
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Xiao-Ting Li
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Cai-Yun Zhong
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, China; Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China.
| | - Hong-Yu Han
- Department of Clinical Nutrition, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China.
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Wang J, Chen J, Jiang Y, Shi Y, Zhu J, Xie C, Geng S, Wu J, Zhang Q, Wang X, Meng Y, Li Y, Chen Y, Cao W, Wang X, Zhong C, Li X. Wnt/β-catenin modulates chronic tobacco smoke exposure-induced acquisition of pulmonary cancer stem cell properties and diallyl trisulfide intervention. Toxicol Lett 2018; 291:70-76. [PMID: 29626521 DOI: 10.1016/j.toxlet.2018.04.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Revised: 03/30/2018] [Accepted: 04/03/2018] [Indexed: 12/11/2022]
Abstract
Lung cancer is the leading cause of cancer-related death worldwide; tobacco smoke (TS) constitutes the main causes of lung cancer. Acquisition of cancer stem cells (CSCs)-like properties is the essential progression for the initiation of lung cancer. However, the mechanisms for tobacco smoke-induced lung carcinogenesis remain elusive. In the present study, we demonstrated that long-term exposure of human bronchial epithelial (HBE) cells to TS resulted in malignant transformation and acquisition of CSC-like properties. Moreover, Wnt/β-catenin pathway was involved in acquisition of the CSC-like phenotype during neoplastic transformation of HBE cells induced by TS. Downregulation of β-catenin reduced the tumorsphere and decreased the protein expression of lung CSCs markers in TS-transformated HBE sphere-forming cells. Furthermore, Diallyl trisulfide (DATS) inhibited the CSCs activity of TS-transformed HBE cells, as well as Wnt/β-catenin suppression. Activation of Wnt/β-catenin diminished the inhibitory effects of DATS on TS-induced stemness of HBE cells. Together, the present investigation elucidates the modulation of Wnt/β-catenin in chronic TS exposure-triggered pulmonary acquisition of CSCs properties and DATS intervention, which may provide new insights into the interventional strategies against lung CSCs.
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Affiliation(s)
- Jiaye Wang
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jiaqi Chen
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Ye Jiang
- Department of Food and School Hygiene, Taizhou Municipal Center for Disease Control and Prevention, Taizhou, Zhejiang, 318000, China
| | - Yingying Shi
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jianyun Zhu
- Suzhou Municipal Hospital, Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, Jiangsu, 215008, China
| | - Chunfeng Xie
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Shanshan Geng
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Jieshu Wu
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Qi Zhang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Xiaoqian Wang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yu Meng
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yuan Li
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Yue Chen
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Wanshuang Cao
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Xueqi Wang
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China
| | - Caiyun Zhong
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China; The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
| | - Xiaoting Li
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, 211166, China.
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9
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Sun X, Zhang T, Deng Q, Zhou Q, Sun X, Li E, Yu D, Zhong C. Benzidine Induces Epithelial-Mesenchymal Transition of Human Bladder Cancer Cells through Activation of ERK5 Pathway. Mol Cells 2018; 41:188-197. [PMID: 29463068 PMCID: PMC5881092 DOI: 10.14348/molcells.2018.2113] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 11/24/2017] [Accepted: 12/20/2017] [Indexed: 12/17/2022] Open
Abstract
Benzidine, a known carcinogen, is closely associated with the development of bladder cancer (BC). Epithelial-mesenchymal transition (EMT) is a critical pathophysiological process in BC progression. The underlying molecular mechanisms of mitogen-activated protein kinase (MAPK) pathway, especially extracellular regulated protein kinases 5 (ERK5), in regulating benzidine-induced EMT remains unclarified. Hence, two human bladder cell lines, T24 and EJ, were utilized in our study. Briefly, cell migration was assessed by wound healing assay, and cell invasion was determined by Transwell assay. Quantitative PCR and western blot were utilized to determine both gene expressions as well as protein levels of EMT and MAPK, respectively. Small interfering RNA (siRNA) was transfected to further determine ERK5 function. As a result, the migration and invasion abilities were enhanced, epithelial marker expression was decreased while mesenchymal marker expression was increased in human BC cell lines. Meanwhile, benzidine administration led to activation of ERK5 and activator protein 1 (AP-1) proteins, without effective stimulation of the Jun N-terminal kinase (JNK) or p38 pathways. Moreover, Benzidine-induced EMT and ERK5 activation were completely suppressed by XMD8-92 and siRNAs specific to ERK5. Of note, ERK1/2 was activated in benzidine-treated T24 cells, while benzidine-induced EMT could not be reversed by U0126, an ERK1/2 inhibitor, as indicated by further study. Collectively, our findings revealed that ERK5-mediated EMT was critically involved in benzidine-correlated BC progression, indicating the therapeutic significance of ERK5 in benzidine-related BC.
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Affiliation(s)
- Xin Sun
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032,
PR China
| | - Tao Zhang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032,
PR China
| | - Qifei Deng
- Second Department of Urology, Anhui Provincial Children’s Hospital, Hefei, Anhui 230032,
PR China
| | - Qirui Zhou
- Department of Otolaryngology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032,
PR China
| | - Xianchao Sun
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032,
PR China
| | - Enlai Li
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032,
PR China
| | - Dexin Yu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032,
PR China
| | - Caiyun Zhong
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166,
PR China
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Liang Z, Wu R, Xie W, Zhu M, Xie C, Li X, Zhu J, Zhu W, Wu J, Geng S, Xu W, Zhong C, Han H. Curcumin reverses tobacco smoke‑induced epithelial‑mesenchymal transition by suppressing the MAPK pathway in the lungs of mice. Mol Med Rep 2018; 17:2019-2025. [PMID: 29138815 DOI: 10.3892/mmr.2017.8028] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Accepted: 08/14/2017] [Indexed: 11/06/2022] Open
Abstract
Tobacco smoke is a major risk factor for lung cancer. Epithelial‑mesenchymal transition (EMT) is decisive in cancer invasion and metastasis, and therefore promotes cancer progression. Mitogen‑activated protein kinase (MAPK) pathways are implicated in various aspects of cancer development and progression, including the EMT process. The chemopreventive effect of curcumin on carcinogenesis has been reported in vivo and in vitro. The present study investigated tobacco smoke‑induced alterations in the MAPK/activator protein‑1 (AP‑1) pathways, and pulmonary EMT changes in the lungs of mice, and further observed the chemopreventive effect of curcumin. The protein expression levels analyzed by western blot analysis demonstrated that 12 weeks of tobacco smoke exposure activated extracellular‑signal‑regulated kinase (ERK) 1/2, c‑Jun N‑terminal kinase (JNK) and p38 MAPK pathways, in addition to AP‑1, in the lungs of mice, while reducing the activation of ERK5/MAPK pathways. The results also indicated that the mRNA and protein levels of the epithelial markers E‑cadherin and zona occludens‑1 were reduced following tobacco smoke exposure. Conversely, the expression levels of mRNA and protein for the mesenchymal markers vimentin and N‑cadherin were increased. Curcumin treatment inhibited tobacco smoke‑induced MAPK/AP‑1 activation, including ERK1/2, JNK and p38 MAPK pathways, and AP‑1 proteins, and reversed EMT alterations in lung tissue. The results of the present study provide new insights into the molecular mechanisms of tobacco smoke‑associated lung cancer and may open up new avenues in the search for potential therapeutic targets in lung tumorigenesis.
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Affiliation(s)
- Zhaofeng Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Rui Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Wei Xie
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Mingming Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Chunfeng Xie
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Xiaoting Li
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Jianyun Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Weiwei Zhu
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Jieshu Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Shanshan Geng
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Wenrong Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Caiyun Zhong
- Department of Nutrition and Food Hygiene, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, P.R. China
| | - Hongyu Han
- Department of Clinical Nutrition, State Key Laboratory of Oncology in South China, Sun Yat‑sen University Cancer Center, Guangzhou, Guangdong 510060, P.R. China
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11
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Wang Y, Geng H, Zhao L, Zhang Z, Xie D, Zhang T, Min J, Yu D, Zhong C. Role of AP-1 in the tobacco smoke-induced urocystic abnormal cell differentiation and epithelial-mesenchymal transition in vivo. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:8243-8252. [PMID: 31966675 PMCID: PMC6965368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 05/27/2017] [Indexed: 06/10/2023]
Abstract
Bladder cancer is believed to arise after a series of progressive pathological changes. Cell differentiation exists in almost all cells, when become aberrant, can initiate or promote diseases processes and tumorigenesis. Epithelial-mesenchymal transition (EMT) is a crucial pathophysiological process in cancer initiation and development. Tobacco smoke is an important risk factor of bladder cancer. However, the molecular mechanisms of tobacco smoke-triggered abnormal cell differentiation and EMT in bladder tissues have not been well defined. The current study was designed to investigate the regulatory role of AP-1 in tobacco smoke-triggered urocystic abnormal cell differentiation and EMT in vivo. Exposure of male BALB/c mice to tobacco smoke for 12 weeks altered the expression of cell differentiation and EMT markers in bladder tissues. Importantly, we demonstrated that AP-1 modulated tobacco smoke-induced abnormal cell differentiation and EMT, as evidenced by the findings that tobacco smoke elevated AP-1 activation, and tobacco smoke-mediated cell differentiation and EMT were reversed by AP-1 suppression. These data indicated that AP-1 play an important role in tobacco smoke-induced urocystic abnormal cell differentiation and EMT. These findings provide new insights into the mechanism of tobacco smoke associated urocystic tumorigenesis and may help to discover potential targets for novel therapies and chemoprevention.
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Affiliation(s)
- Yi Wang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Hao Geng
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Li Zhao
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Zhiqiang Zhang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Dongdong Xie
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Tao Zhang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Jie Min
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Dexin Yu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical UniversityHefei 230032, China
| | - Caiyun Zhong
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical UniversityNanjing 211166, China
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12
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Sun X, Deng Q, Liang Z, Liu Z, Geng H, Zhao L, Zhou Q, Liu J, Ma J, Wang D, Yu D, Zhong C. Cigarette smoke extract induces epithelial-mesenchymal transition of human bladder cancer T24 cells through activation of ERK1/2 pathway. Biomed Pharmacother 2017; 86:457-465. [PMID: 28012925 DOI: 10.1016/j.biopha.2016.12.022] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 12/06/2016] [Accepted: 12/06/2016] [Indexed: 12/22/2022] Open
Abstract
Bladder cancer is a common genitourinary malignant disease worldwide. Abundant evidence has shown that cigarette smoke (CS) is a crucial risk factor for bladder cancer. Nevertheless, the mechanism underlying the relationship between cigarette smoking and bladder cancer remains unclear. In the present study, we investigated the effects of cigarette smoke extract (CSE) on mitogen-activated protein kinase (MAPK) pathway activation and EMT alterations in human bladder cancer T24 cells, and the preventive effect of extracellular regulated protein kinases 1 and 2 (ERK1/2) inhibitor U0126 was further examined. Our results illustrated that CSE exposure induced morphological change of human bladder cancer T24 cells, enhanced migratory and invasive capacities, reduced epithelial marker expression and elevated mesenchymal marker expression. Meanwhile, exposure of T24 cells to CSE resulted in activation of ERK1/2 pathway as well as activator protein 1 (AP-1) proteins. Interestingly, treatment with ERK1/2 inhibitor U0126 effectively abrogated CSE-triggered EMT and ERK1/2/AP-1 activation. These findings provide novel insight into the molecular mechanisms of CS-associated bladder cancer and may open up new avenues in the search for potential target of bladder cancer intervention.
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Affiliation(s)
- Xin Sun
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China
| | - Qifei Deng
- Department of Urology, Anhui Provincial Children's Hospital, 39 East Wangjiang Road, Hefei, Anhui 230032, PR China
| | - Zhaofeng Liang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, PR China
| | - Zhiqi Liu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China
| | - Hao Geng
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China
| | - Li Zhao
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China
| | - Qirui Zhou
- Anhui International Travel Health Care Center, Anhui Entry-Exit Inspection and Quarantine Bureau, 329 Tunxi Road, Hefei, Anhui 230022, PR China
| | - Jie Liu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China
| | - Jiaxing Ma
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China
| | - Daming Wang
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China
| | - Dexin Yu
- Department of Urology, The Second Affiliated Hospital of Anhui Medical University, 80 Feicui Rd, Hefei, Anhui 230032, PR China.
| | - Caiyun Zhong
- Department of Nutrition and Food Safety, School of Public Health, Nanjing Medical University, 818 East Tianyuan Road, Nanjing, Jiangsu 211166, PR China.
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13
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Wu J, Cui H, Zhu Z, Wang L. MicroRNA-200b-3p suppresses epithelial-mesenchymal transition and inhibits tumor growth of glioma through down-regulation of ERK5. Biochem Biophys Res Commun 2016; 478:1158-64. [PMID: 27545608 DOI: 10.1016/j.bbrc.2016.08.085] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 08/15/2016] [Indexed: 01/06/2023]
Abstract
Epithelial-mesenchymal transition (EMT) plays a pivotal role in the development of cancer. Has-miR-200b-3p is generally recognized as one of the fundamental regulators of EMT. In this study, we found that the expression of miR-200b-3p was downregulated in glioma tissues and human glioma cells U87 and U251. Meanwhile, Up-regulating miR-200b-3p enhanced E-cadherin, reduced mesenchymal markers, and decreased cell proliferation, migration, and invasion in vitro. In vivo, the xenograft mouse model also unveiled the suppressive effects of miR-200b-3p on tumor growth. Additionally, The extracellular-regulated protein kinase 5 (ERK5) was confirmed as a direct target gene of miR-200b-3p. The direct suppression of ERK5 expressions by miR-200b-3p was revealed by luciferase reporter assay, quantitative RT-PCR analysis, and western blot. Moreover, we observed an inverse correlation between miR-200b-3p and ERK5 in human glioma tissues. In summary, our findings demonstrated that miR-200b-3p suppresses glioma tumor growth, invasion, and reverses EMT through downregulated its target ERK5.
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Affiliation(s)
- Jianguo Wu
- Department of Neurosurgery, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China.
| | - Hongyan Cui
- Department of Neurosurgery, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Zhifeng Zhu
- Department of Neurosurgery, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
| | - Li Wang
- Department of Neurosurgery, The Second Hospital of Tianjin Medical University, Tianjin, 300211, China
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14
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Lu L, Chen J, Tang H, Bai L, Lu C, Wang K, Li M, Yan Y, Tang L, Wu R, Ye Y, Jin L, Liang Z. EGCG Suppresses ERK5 Activation to Reverse Tobacco Smoke-Triggered Gastric Epithelial-Mesenchymal Transition in BALB/c Mice. Nutrients 2016; 8:nu8070380. [PMID: 27447666 PMCID: PMC4963860 DOI: 10.3390/nu8070380] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2016] [Revised: 05/28/2016] [Accepted: 06/14/2016] [Indexed: 12/14/2022] Open
Abstract
Tobacco smoke is an important risk factor of gastric cancer. Epithelial-mesenchymal transition is a crucial pathophysiological process in cancer development. ERK5 regulation of epithelial-mesenchymal transition may be sensitive to cell types and/or the cellular microenvironment and its role in the epithelial-mesenchymal transition process remain elusive. Epigallocatechin-3-gallate (EGCG) is a promising chemopreventive agent for several types of cancers. In the present study we investigated the regulatory role of ERK5 in tobacco smoke-induced epithelial-mesenchymal transition in the stomach of mice and the preventive effect of EGCG. Exposure of mice to tobacco smoke for 12 weeks reduced expression of epithelial markers E-cadherin, ZO-1, and CK5, while the expression of mesenchymal markers Snail-1, Vimentin, and N-cadherin were increased. Importantly, we demonstrated that ERK5 modulated tobacco smoke-mediated epithelial-mesenchymal transition in mice stomach, as evidenced by the findings that tobacco smoke elevated ERK5 activation, and that tobacco smoke-triggered epithelial-mesenchymal transition was reversed by ERK5 inhibition. Treatment of EGCG (100 mg/kg BW) effectively attenuated tobacco smoke-triggered activation of ERK5 and epithelial-mesenchymal transition alterations in mice stomach. Collectively, these data suggested that ERK5 was required for tobacco smoke-triggered gastric epithelial-mesenchymal transition and that EGCG suppressed ERK5 activation to reverse tobacco smoke-triggered gastric epithelial-mesenchymal transition in BALB/c mice. These findings provide new insights into the mechanism of tobacco smoke-associated gastric tumorigenesis and the chemoprevention of tobacco smoke-associated gastric cancer.
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Affiliation(s)
- Ling Lu
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Jia Chen
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Hua Tang
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Ling Bai
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Chun Lu
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Kehuan Wang
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Manli Li
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Yinmei Yan
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Ling Tang
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Rui Wu
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Yang Ye
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang 212013, China.
| | - Longtao Jin
- Zhenjiang Matemity and Child Health Care Hospital, Zhenjiang 212001, China.
| | - Zhaofeng Liang
- Department of Preventive Medicine and Public Health Laboratory Sciences, School of Medicine, Jiangsu University, Zhenjiang 212013, China.
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, School of Medicine, Jiangsu University, Zhenjiang 212013, China.
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15
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Vu T, Jin L, Datta PK. Effect of Cigarette Smoking on Epithelial to Mesenchymal Transition (EMT) in Lung Cancer. J Clin Med 2016; 5:jcm5040044. [PMID: 27077888 PMCID: PMC4850467 DOI: 10.3390/jcm5040044] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 04/04/2016] [Accepted: 04/06/2016] [Indexed: 12/15/2022] Open
Abstract
Epithelial to mesenchymal transition (EMT) is a process that allows an epithelial cell to acquire a mesenchymal phenotype through multiple biochemical changes resulting in an increased migratory capacity. During cancer progression, EMT is found to be associated with an invasive or metastatic phenotype. In this review, we focus on the discussion of recent studies about the regulation of EMT by cigarette smoking. Various groups of active compounds found in cigarette smoke such as polycyclic aromatic hydrocarbons (PAH), nicotine-derived nitrosamine ketone (NNK), and reactive oxygen specicies (ROS) can induce EMT through different signaling pathways. The links between EMT and biological responses to cigarette smoke, such as hypoxia, inflammation, and oxidative damages, are also discussed. The effect of cigarette smoke on EMT is not only limited to cancer types directly related to smoking, such as lung cancer, but has also been found in other types of cancer. Altogether, this review emphasizes the importance of understanding molecular mechanisms of the induction of EMT by cigarette smoking and will help in identifying novel small molecules for targeting EMT induced by smoking.
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Affiliation(s)
- Trung Vu
- Division of Hematology and Oncology, Department of Medicine, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35233, USA.
| | - Lin Jin
- Division of Hematology and Oncology, Department of Medicine, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35233, USA.
| | - Pran K Datta
- Division of Hematology and Oncology, Department of Medicine, Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL 35233, USA.
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