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Hu M, Xu J, Shi L, Shi L, Yang H, Wang Y. The p38 MAPK/snail signaling axis participates in cadmium-induced lung cancer cell migration and invasiveness. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:24042-24050. [PMID: 38436850 DOI: 10.1007/s11356-024-32746-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 02/28/2024] [Indexed: 03/05/2024]
Abstract
To determine that p38 MAPK activation contributes to the migration and invasion of lung cancer cells caused by cadmium (Cd). A549 lung cancer cell migration and invasion were assessed using a transwell plate system, and the role of p38 was determined by knocking down p38 activity with two different inhibitors of p38. The activity of p38 was measured by western blot analysis using phospho-specific p38 antibodies and normalized to blots using antibodies directed to total p38 proteins. Snail transcripts were measured using qRT-PCR. The inhibition of p38 blocked Cd-induced migration and invasion, which correlated with an increased activation of p38 as a function of dose and time. Furthermore, Cd-induced activation of p38 MAPK controlled the increase of snail mRNA expression. The p38 MAPK/snail signaling axis was involved in Cd-induced lung cancer cell migration and invasion.
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Affiliation(s)
- Mengke Hu
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Jie Xu
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Liqin Shi
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Li Shi
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, 450001, China
| | - Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, No. 105 of South Nongye Road, Zhengzhou, 450016, China.
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Constructing gene regulatory networks using epigenetic data. NPJ Syst Biol Appl 2021; 7:45. [PMID: 34887443 PMCID: PMC8660777 DOI: 10.1038/s41540-021-00208-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 11/01/2021] [Indexed: 12/24/2022] Open
Abstract
The biological processes that drive cellular function can be represented by a complex network of interactions between regulators (transcription factors) and their targets (genes). A cell's epigenetic state plays an important role in mediating these interactions, primarily by influencing chromatin accessibility. However, how to effectively use epigenetic data when constructing a gene regulatory network remains an open question. Almost all existing network reconstruction approaches focus on estimating transcription factor to gene connections using transcriptomic data. In contrast, computational approaches for analyzing epigenetic data generally focus on improving transcription factor binding site predictions rather than deducing regulatory network relationships. We bridged this gap by developing SPIDER, a network reconstruction approach that incorporates epigenetic data into a message-passing framework to estimate gene regulatory networks. We validated SPIDER's predictions using ChIP-seq data from ENCODE and found that SPIDER networks are both highly accurate and include cell-line-specific regulatory interactions. Notably, SPIDER can recover ChIP-seq verified transcription factor binding events in the regulatory regions of genes that do not have a corresponding sequence motif. The networks estimated by SPIDER have the potential to identify novel hypotheses that will allow us to better characterize cell-type and phenotype specific regulatory mechanisms.
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Li J, Hu M, Liu N, Li H, Yu Z, Yan Q, Zhou M, Wang Y, Song Y, Pan G, Liang F, Chen R. HDAC3 deteriorates colorectal cancer progression via microRNA-296-3p/TGIF1/TGFβ axis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2020; 39:248. [PMID: 33203425 PMCID: PMC7670781 DOI: 10.1186/s13046-020-01720-w] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 09/25/2020] [Indexed: 12/20/2022]
Abstract
Background The mechanism of histone deacetylase 3 (HDAC3) in colorectal cancer (CRC) has already been discussed. However, the feedback loop of HDAC3/microRNA (miR)-296-3p and transforming growth factor β-induced factor 1 (TGIF1) in CRC has not been explained clearly. Thus, the mainstay of this study is to delve out the mechanism of this axis in CRC. Methods To demonstrate that HDAC3 regulates the miR-296-3p/TGIF1/TGFβ axis and is involved in CRC progression, a series of cell biological, molecular and biochemical approaches were conducted from the clinical research level, in vitro experiments and in vivo experiments. These methods included RT-qPCR, Western blot assay, cell transfection, MTT assay, EdU assay, flow cytometry, scratch test, Transwell assay, dual luciferase reporter gene assay, chromatin immunoprecipitation, nude mouse xenograft, H&E staining and TUNEL staining. Results Higher HDAC3 and TGIF1 and lower miR-296-3p expression levels were found in CRC tissues. HDAC3 was negatively connected with miR-296-3p while positively correlated with TGIF1, and miR-296-3p was negatively connected with TGIF1. Depleted HDAC3 elevated miR-296-3p expression and reduced TGIF1 expression, decreased TGFβ pathway-related proteins, inhibited CRC proliferation, invasion, and migration in vitro and slowed down tumor growth and induction of apoptosis in vivo, which were reversed by miR-296-3p knockdown. Restored miR-296-3p suppressed TGIF1 and reduced TGFβ pathway-related proteins, inhibited CRC proliferation, invasion, and migration in vitro and slowed down tumor growth and induction of apoptosis in vivo, which were reversed by TGIF1 overexpression. Conclusion This study illustrates that down-regulation of HDAC3 or TGIF1 or up-regulation of miR-296-3p discourages CRC cell progression and slows down tumor growth, which guides towards a novel direction of CRC treatment.
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Affiliation(s)
- Jinxiao Li
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Man Hu
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Na Liu
- Rehabilitation Department of traditional Chinese Medicine, Union Red Cross Hospital, Wuhan, 430015, China
| | - Huarong Li
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Zhaomin Yu
- Department of oncology, Hubei Provincial Hospital of Integrated Chinese and Western Medicine, Wuhan, 430071, China
| | - Qian Yan
- First Affiliated Hospital of Guangzhou University of Traditional Chinese Medicine, Guangzhou, 510405, China
| | - Minfeng Zhou
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Yayuan Wang
- College of Acupuncture & Moxibustion and Orthopaedics, Hubei University of Chinese Medicine, Wuhan, 430060, China
| | - Yanjuan Song
- College of Acupuncture & Moxibustion and Orthopaedics, Hubei University of Chinese Medicine, Wuhan, 430060, China
| | - Guangtao Pan
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China
| | - Fengxia Liang
- College of Acupuncture & Moxibustion and Orthopaedics, Hubei University of Chinese Medicine, Wuhan, 430060, China.
| | - Rui Chen
- Department of Integrated Traditional Chinese and Western Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1227 Jiefang Avenue, Wuhan City, 430022, Hubei Province, China.
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4
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Liu X, Ju J, Liu Q, Zhu Z, Liu C. The Chinese Medicine, Shezhi Huangling Decoction, Inhibits the Growth and Metastasis of Glioma Cells via the Regulation of miR-1298-5p/TGIF1 Axis. Cancer Manag Res 2020; 12:5677-5687. [PMID: 32765071 PMCID: PMC7367721 DOI: 10.2147/cmar.s242856] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 06/03/2020] [Indexed: 12/17/2022] Open
Abstract
Purpose In recent years, traditional Chinese medicine has achieved good results in treating gliomas. This research aimed to reveal the effect of Shezhi Huangling decoction (SD) on glioma cell process. Methods U87 and U251 cells were treated with different concentrations (10, 30 and 50 μg/mL) of SD or transfected with miR-1298-5p mimic, inhibitor and siRNA targeting TGIF1. Cell proliferation, migration, invasion and apoptosis were detected. The expression of miR-1298-5p was measured by qRT-PCR, while TGIF1 expression was examined by immunohistochemical analysis and Western blot. Results SD treatment inhibited the proliferation, migration and invasion of glioma cells and induced the apoptosis. In addition, SD treatment induced the expression of miR-1298-5p in glioma cells. The low expression of miR-1298-5p was examined in glioma tissues and was significantly related to the high histological grade of glioma patients and predicted a poor prognosis. MiR-1298-5p directly targeted the 3'-UTR of transforming growth factor β induced factor 1 (TGIF1) and reduced TGIF1 protein expression. MiR-1298-5p restricted the proliferation, migration and invasion of glioma cells and induced cell apoptosis by targeting TGIF1. Conclusion Our data reveal that SD acts as a cancer-inhibiting agent in glioma via miR-1298-5p/TGIF1 axis, suggesting a potential therapeutic application of SD in glioma.
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Affiliation(s)
- Xiaoqian Liu
- Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Jianfeng Ju
- Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Qun Liu
- Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Zongmin Zhu
- Department of Pharmacy, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan 250011, Shandong, People's Republic of China
| | - Chunxia Liu
- Department of Pharmacy, Caoxian People's Hospital of Heze City, Heze 274400, Shandong, People's Republic of China
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Du R, Shen W, Liu Y, Gao W, Zhou W, Li J, Zhao S, Chen C, Chen Y, Liu Y, Sun P, Xiang R, Shi Y, Luo Y. TGIF2 promotes the progression of lung adenocarcinoma by bridging EGFR/RAS/ERK signaling to cancer cell stemness. Signal Transduct Target Ther 2019; 4:60. [PMID: 31871777 PMCID: PMC6908606 DOI: 10.1038/s41392-019-0098-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Accepted: 11/15/2019] [Indexed: 02/06/2023] Open
Abstract
TGF-β-induced factor homeobox 2 (TGIF2) is a transcription regulator that plays essential roles in the regulation of development and cell fate decisions. Aberrant expression of TGIF family proteins has been observed in several cancers, including ovarian, esophageal, and colorectal cancers. Here, we report that TGIF2 mediates the EGFR-RAS-ERK signaling pathway to enhance the stemness of lung adenocarcinoma (LUAD) cells and, therefore, promote the progression and metastasis of LUAD. We found that high TGIF2 expression was closely correlated with tumor growth, lymph node metastasis, and survival of patients with LUAD. Mice bearing TGIF2-silenced H1299 xenografts developed smaller tumors and fewer lung metastases. Importantly, silencing TGIF2 decreased the cancer stem cell (CSC)-like properties in A549 and H1299 cells. Furthermore, we identified that TGIF2 binding to the OCT4 promoter promotes its expression. In both LUAD cells and in vivo LUAD mouse models, we revealed that EGFR-RAS-ERK signaling phosphorylated TGIF2 and increased its stability, which was important for TGIF2-promoted LUAD stemness since phosphorylation-deficient TGIF2 mutants lost these functions. Thus, our study revealed that an important factor, TGIF2, bridges EGFR signaling to the CSC characteristics of LUAD cells, which can be utilized as an effective target for LUAD therapy.
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Affiliation(s)
- Renle Du
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
| | - Wenzhi Shen
- Department of Pathology and Institute of Precision Medicine, Jining Medical University, Jining, 272067 China
| | - Yi Liu
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
| | - Wenjuan Gao
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
| | - Wei Zhou
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
| | - Jun Li
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
| | - Shuangtao Zhao
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
| | - Chong Chen
- Department of Immunology, Institute of Basic Medical Science, Chinese Academy of Medical Science, School of Basic Medicine, Peking Union Medical College, Beijing, 100005 China
| | - Yanan Chen
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
- 2011 Project Collaborative Innovation Center for Biotherapy of Ministry of Education, Tianjin, 300071 China
- Tianjin Key Laboratory of Tumour Microenvironment and Neurovascular Regulation, Tianjin, 300071 China
| | - Yanhua Liu
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
- 2011 Project Collaborative Innovation Center for Biotherapy of Ministry of Education, Tianjin, 300071 China
- Tianjin Key Laboratory of Tumour Microenvironment and Neurovascular Regulation, Tianjin, 300071 China
| | - Peiqing Sun
- Department of Cancer Biology, School of Medicine, Wake Forest University, Winston-Salem, NC 27157 USA
| | - Rong Xiang
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
- 2011 Project Collaborative Innovation Center for Biotherapy of Ministry of Education, Tianjin, 300071 China
- Tianjin Key Laboratory of Tumour Microenvironment and Neurovascular Regulation, Tianjin, 300071 China
| | - Yi Shi
- Department of Immunology, School of Medicine, Nankai University, Tianjin, 300071 China
- 2011 Project Collaborative Innovation Center for Biotherapy of Ministry of Education, Tianjin, 300071 China
- Tianjin Key Laboratory of Tumour Microenvironment and Neurovascular Regulation, Tianjin, 300071 China
| | - Yunping Luo
- Department of Immunology, Institute of Basic Medical Science, Chinese Academy of Medical Science, School of Basic Medicine, Peking Union Medical College, Beijing, 100005 China
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6
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The roles of TG-interacting factor in cadmium exposure-promoted invasion and migration of lung cancer cells. Toxicol In Vitro 2019; 61:104630. [DOI: 10.1016/j.tiv.2019.104630] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 08/09/2019] [Accepted: 08/18/2019] [Indexed: 12/24/2022]
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7
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Benzo(a)pyrene promotes migration, invasion and metastasis of lung adenocarcinoma cells by upregulating TGIF. Toxicol Lett 2018; 294:11-19. [DOI: 10.1016/j.toxlet.2018.05.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 03/26/2018] [Accepted: 05/07/2018] [Indexed: 01/17/2023]
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8
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Wang Y, Wang H, Li L, Li J, Pan T, Zhang D, Yang H. Elevated expression of STIM1 is involved in lung tumorigenesis. Oncotarget 2018; 7:86584-86593. [PMID: 27863410 PMCID: PMC5349937 DOI: 10.18632/oncotarget.13359] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Accepted: 10/29/2016] [Indexed: 12/11/2022] Open
Abstract
This study aimed to address the potential role of STIM1 (stromal interaction molecule 1) in lung tumorigenesis. Colony formation in soft agar assay and tumorigenicity in nude mice assay were conducted. Western blot, immunohistochemistry and quantitative real-time polymerase chain reaction were used to measure the STIM1 expression. The distribution of cell cycle was detected by flow cytometry assay. Our results showed that the expression of STIM1 mRNA was significantly higher in human lung tumors than that in adjacent non-neoplastic lung tissues. Significantly increased expression of STIM1 mRNA and protein was observed in 16HBE-benzo(a)pyrene (BaP) cells and in BaP-treated mice lung tissues compared with 16HBE-control cells and the control group, respectively. Silencing STIM1 inhibited the proliferation and colony formation of A549 cells in in vitro experiments, attenuated the growth of tumor xenografts of A549 cells in in vivo experiments and induced the arrest of cell cycle in the G1 phase. The markedly decreased expression of cyclin D1 protein was observed in A549-shRNA-STIM1 cells as compared to A549-shRNA-control cells. The markedly increased expression of p21 protein was observed in A549-shRNA-STIM1 cells as compared to A549-shRNA-control cells. The expression levels of β-catenin and TGIF proteins were lower in A549-shRNA-STIM1 cells than those in A549-shRNA-control cells. In conclusion, this study indicated that the elevated expression of STIM1 might be involved in lung tumorigenesis.
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Affiliation(s)
- Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang 453003, China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Li Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Jiangmin Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Ding Zhang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
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Pan T, Mao T, Yang H, Wang H, Wang Y. Silencing of TGIF sensitizes MDA-MB-231 human breast cancer cells to cisplatin-induced apoptosis. Exp Ther Med 2018; 15:2978-2984. [PMID: 29456703 PMCID: PMC5795508 DOI: 10.3892/etm.2018.5780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 01/16/2018] [Indexed: 12/20/2022] Open
Abstract
The present study was designed to explore the sensitivity of MDA-MB-231 cells to cisplatin after silencing the expression of TG-interacting factor (TGIF) protein. Cell viability was measured using an MTT assay. Cell apoptosis was detected by the annexin V and dead cell assay and the Hoechst staining assay. Protein expression was analyzed using western blot analysis. A colony formation assay was also performed. It was observed that cisplatin reduced the expression of TGIF protein in a dose- and time-dependent manner. Silencing TGIF significantly suppressed the cell proliferation and colony formation in MDA-MB-231 cells with the treatment of cisplatin. Results indicated that silencing TGIF could dramatically increase the cisplatin-induced apoptosis rate in MDA-MB-231 cells. The expression of PARP and caspase-3 proteins was correlated with the effect that silencing TGIF enhanced cisplatin sensitivity in MDA-MB-231 cells. The present data showed that silencing TGIF promoted apoptotic sensitivity that was induced by cisplatin in MDA-MB-231 human breast cancer cells and suggested that TGIF might be a therapeutic target for improving the chemotherapy response in triple-negative breast cancer.
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Affiliation(s)
- Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Tingting Mao
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
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10
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Wang Y, Pan T, Li L, Wang H, Li J, Zhang D, Yang H. Knockdown of TGIF attenuates the proliferation and tumorigenicity of EC109 cells and promotes cisplatin-induced apoptosis. Oncol Lett 2017; 14:6519-6524. [PMID: 29344116 PMCID: PMC5754828 DOI: 10.3892/ol.2017.7009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 09/07/2017] [Indexed: 12/23/2022] Open
Abstract
A previous study has reported that frequent amplifications of the TG-interacting factor (TGIF) were observed in esophageal squamous cell carcinoma. The aim of the present study was to investigate the potential role of TGIF in the proliferation and tumorigenicity of the esophageal cancer cell line EC109 and cisplatin-induced apoptosis. Stable TGIF-knockdown EC109 cell line was established by infecting short hairpin RNA (shRNA) lentiviral particles. Soft agar and tumor xenograft assays were applied in nude mice. Flow cytometry was employed to evaluate the cell cycle and apoptosis. Western blot analysis was used to detect the expression of proteins. TGIF knockdown suppressed EC109 cell proliferation, colony formation in soft agar and tumor growth in nude mice, induced cell cycle arrest in the G1 phase, and promoted cisplatin-induced apoptosis. In addition, TGIF knockdown significantly reduced the expression of phospho-Rb in EC109 cells. The reduced level of full length PARP expression and the increased level of cleaved caspase-3 expression were observed in EC109 cells with the treatment of cisplatin and TGIF knockdown. The results suggest that knockdown of TGIF attenuated the proliferation and tumorigenicity of EC109 cells, and promoted cisplatin-induced apoptosis.
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Affiliation(s)
- Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang, Henan 453003, P.R. China
| | - Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Li Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Jiangmin Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Ding Zhang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
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11
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Wang Y, Pan T, Wang H, Li L, Li J, Zhang D, Yang H. Overexpression of SIRT6 attenuates the tumorigenicity of hepatocellular carcinoma cells. Oncotarget 2017; 8:76223-76230. [PMID: 29100306 PMCID: PMC5652700 DOI: 10.18632/oncotarget.19297] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Accepted: 06/04/2017] [Indexed: 12/14/2022] Open
Abstract
Objective This study aimed to explore the effects of overexpression of sirtuin 6 (SIRT6) on the tumorigenicity of hepatocellular carcinoma (HCC) cells Methods Stable SIRT6-overexpressed HCC cell lines were established by transfecting SIRT6 plasmid. Soft agar assay and tumor xenograft assay in nude mice were applied. Flow cytometry was employed to detect cell cycle distribution. Western blotting analysis was used to detect the expression of proteins. Results Overexpression of SIRT6 attenuated HepG2 and HCCLM3 cells proliferation, colony formation in vitro and tumor formation in nude mice, and resulted in the G1 phase cell cycle arrest. Overexpression of SIRT6 reduced the expression of cyclin D1 and p-ERK proteins in both HepG2 and HCCLM3 cells. Conclusion Overexpression of SIRT6 attenuates the tumorigenicity of HCC cells.
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Affiliation(s)
- Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China.,Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, Xinxiang Medical University, Xinxiang 453003, China
| | - Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Li Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Jiangmin Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Ding Zhang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou 450016, China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou 450001, China
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12
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Wang Y, Wang H, Pan T, Li L, Li J, Yang H. STIM1 silencing inhibits the migration and invasion of A549 cells. Mol Med Rep 2017; 16:3283-3289. [PMID: 28713917 PMCID: PMC5547937 DOI: 10.3892/mmr.2017.7010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 05/12/2017] [Indexed: 12/11/2022] Open
Abstract
The present study aimed to explore the effects of stromal interaction molecule 1 (STIM1) knockdown on the migration, invasion and metastasis of A549 cells in vitro and in vivo. Western blotting and immunohistochemistry were used to detect protein expression levels. Wound healing and Transwell invasion assays were used to assess the migratory and invasive abilities of A549 cells transfected with STIM1-specific short hairpin (sh)RNA (shSTIM1). In addition, a tail vein metastatic assay was performed. The results demonstrated that the frequency of STIM1 high-expression was significantly increased in metastatic lung cancer tissues (72.2%) compared with in non-metastatic lung cancer tissues (33.0%). STIM1 knockdown inhibited A549 cell migration and invasion in vitro and tumor metastasis in vivo. The protein expression levels of Snail1, Vimentin, matrix metalloproteinase (MMP) 2 and MMP9 were markedly decreased in A549-shSTIM1 compared with in A549 cells transfected with control shRNA (shcon). In addition, the protein expression levels of E-cadherin were markedly increased in A549-shSTIM1 cells compared with in A549-shcon cells. These results suggested that STIM1 knockdown may inhibit the migration and invasion of A549 cells in vitro, and metastasis in vivo.
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Affiliation(s)
- Yadong Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Haiyu Wang
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Teng Pan
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
| | - Li Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Jiangmin Li
- Department of Toxicology, Henan Center for Disease Control and Prevention, Zhengzhou, Henan 450016, P.R. China
| | - Haiyan Yang
- Department of Epidemiology, School of Public Health, Zhengzhou University, Zhengzhou, Henan 450001, P.R. China
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