1
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Du M, Wang Y, Zhao W, Wang Z, Yuan J, Bai H. Study on the relationship between livin expression and osteosarcoma. J Bone Oncol 2018; 12:27-32. [PMID: 30073139 PMCID: PMC6069704 DOI: 10.1016/j.jbo.2018.03.002] [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: 12/23/2017] [Revised: 03/08/2018] [Accepted: 03/13/2018] [Indexed: 11/30/2022] Open
Abstract
OBJECTIVE The aim of this meta-analysis was to analysis the expression of livin in human osteosarcoma. METHODS We searched the Pubmed, Science Direct, Embase and Web of Science, CNKI, Wanfang and VIP for relevant original studies. Statistical analysis was performed by Stata 11.0 software. RESULTS Our study indicated that livin expressed in the osteosarcoma tissue was significantly higher than the control group (OR = 18.814, P c = 0.000, 95% CI: 10.973-32.257), and the positive expression of livin was correlated with the size of osteosarcoma tumor and Enncking staging (OR = 4.832, 95% CI: 2.198-10.621; OR = 4.851, 95% CI: 3.053-7.709, respectively). CONCLUSION Livin was highly expressed in osteosarcoma, and osteosarcoma Enncking staging and tumor size were positively correlated, both may be involved in the occurrence and development of osteosarcoma, and be closely related to the prognosis of osteosarcoma patients.
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Affiliation(s)
- Meng Du
- Department of Neurology, The Second Affiliated Hospital of Zhengzhou University, Henan, China
| | - Yongfeng Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Wei Zhao
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhiquan Wang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Jie Yuan
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Hongying Bai
- Department of Neurology, The Second Affiliated Hospital of Zhengzhou University, Henan, China
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2
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Zhao CL, Han SN, Wang ZJ, Wang SH, Zhao GQ, Zhang XF, Wang JX. Concomitant modulation of PTEN and Livin in gastric cancer treatment. Int J Mol Med 2018; 41:2901-2908. [PMID: 29436592 DOI: 10.3892/ijmm.2018.3475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 02/02/2018] [Indexed: 11/06/2022] Open
Abstract
Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) and Livin are important in the development of gastric cancer (GC). PTEN and Livin are involved in the regulation of tumor cell proliferation, migration and apoptosis. The modulation of PTEN or Livin has been investigated extensively in various cancer models. However, no studies have been performed to evaluate the combined effect of concurrently modulating these two genes on the development of GC. In the present study, the BGC823 human gastric carcinoma cell line was transfected with a dual gene modified vector (pCL-neo-PTEN-siLivin) in parallel with single gene modified vectors (pCL‑neo‑PTEN or pRNAT‑U6.1‑siLivin), and an empty control vector. Dual gene modulation (pCL‑neo‑PTEN‑siLivin) had a more marked effect on the inhibition of cell proliferation, induction of apoptosis, and reduction of cell penetration in Matrigel, compared with either single gene alone or empty vector transfection. In a xenograft nude mouse model, the inoculation of pCL‑neo‑PTEN‑siLivin‑transfected BGC823 cells led to a markedly reduced tumor burden, compared with that in all other inoculation groups. In conclusion, the overexpression of PTEN concomitant with Livin gene silencing was confirmed as a feasible and effective in vitro and in vivo gene modulation method, which may represent a potential therapeutic strategy for the treatment of GC.
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Affiliation(s)
- Chun-Lin Zhao
- Department of General Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Sheng-Na Han
- Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Zhi-Ju Wang
- Department of Physiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Shu-Hui Wang
- Department of Pharmacology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Guo-Qiang Zhao
- Department of Physiology, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Xie-Fu Zhang
- Department of General Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
| | - Jia-Xiang Wang
- Department of Pediatric Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
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3
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Etti IC, Abdullah R, Kadir A, Hashim NM, Yeap SK, Imam MU, Ramli F, Malami I, Lam KL, Etti U, Waziri P, Rahman M. The molecular mechanism of the anticancer effect of Artonin E in MDA-MB 231 triple negative breast cancer cells. PLoS One 2017; 12:e0182357. [PMID: 28771532 PMCID: PMC5542509 DOI: 10.1371/journal.pone.0182357] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Accepted: 07/17/2017] [Indexed: 02/07/2023] Open
Abstract
Nature has provided us with a wide spectrum of disease healing phytochemicals like Artonin E, obtained from the root bark of Artocarpus elasticus. This molecule had been predicted to be drug-like, possessing unique medicinal properties. Despite strides made in chemotherapy, prognosis of the heterogenous aggressive triple negative breast cancer is still poor. This study was conducted to investigate the mechanism of inhibition of Artonin E, a prenylated flavonoid on MDA-MB 231 triple negative breast cancer cell, with a view of mitigating the hallmarks displayed by these tumors. The anti-proliferative effect, mode of cell death and the mechanism of apoptosis induction were investigated. Artonin E, was seen to effectively relinquish MDA-MB 231 breast cancer cells of their apoptosis evading capacity, causing a half-maximal growth inhibition at low concentrations (14.3, 13.9 and 9.8 μM) after the tested time points (24, 48 and 72 hours), respectively. The mode of cell death was observed to be apoptosis with defined characteristics. Artonin E was seen to induce the activation of both extrinsic and intrinsic caspases initiators of apoptosis. It also enhanced the release of total reactive oxygen species which polarized the mitochondrial membrane, compounding the release of cytochrome c. Gene expression studies revealed the upregulation of TNF-related apoptosis inducing ligand and proapoptotic genes with down regulation of anti-apoptotic genes and proteins. A G2/M cell cycle arrest was also observed and was attributed to the observed upregulation of p21 independent of the p53 status. Interestingly, livin, a new member of the inhibitors of apoptosis was confirmed to be significantly repressed. In all, Artonin E showed the potential as a promising candidate to combat the aggressive triple negative breast cancer.
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Affiliation(s)
- Imaobong Christopher Etti
- Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Selangor, Malaysia
- Department of Pharmacology and Toxicology, University of Uyo, Uyo, Nigeria
| | - Rasedee Abdullah
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, University Putra Malaysia, Selangor, Malaysia
| | - Arifah Kadir
- Department of Veterinary Preclinical Science, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Selangor, Malaysia
| | - Najihah Mohd Hashim
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Swee Keong Yeap
- Laboratory of Vaccine and Immunotherapeutics, Institute of Bioscience, University Putra Malaysia, Selangor, Malaysia
| | - Mustapha Umar Imam
- School of Public Health, Zhengzhou University, Zhengzhou city, Henan Province, PR China
| | - Faiqah Ramli
- Institute of Bioproduct Development, Universiti Technologyi Malaysia, Johor, Malaysia
| | - Ibrahim Malami
- MAKNA-Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Kian Lim Lam
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Selangor, Malaysia
| | - Ubong Etti
- Department of Biochemistry, Obafemi Awolowo University, Ile Ife, Nigeria
| | - Peter Waziri
- MAKNA-Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Marsitoh Rahman
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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4
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Qiu MK, Wang SQ, Pan C, Wang Y, Quan ZW, Liu YB, Ou JM. ROCK inhibition as a potential therapeutic target involved in apoptosis in hemangioma. Oncol Rep 2017; 37:2987-2993. [PMID: 28339093 DOI: 10.3892/or.2017.5515] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 12/27/2016] [Indexed: 11/06/2022] Open
Abstract
Gene expression was examined in hemangiomas (HA), benign, birthmark-like tumors occurring in infancy, and confirmed in HA-derived endothelial cells (HDEC), for which cell proliferation and apoptosis were also assessed. Protein and mRNA accumulation of Rho-associated protein kinase (ROCK), vascular endothelial growth factor (VEGF), Ki-67 and proliferating cell nuclear antigen was significantly higher in proliferating phase HAs than in involuting phase HAs. In contrast, p53 and caspase-3 exhibited higher levels of accumulation in involuting than proliferating HAs. Cell apoptotic indexes were low in proliferating phase HAs and increased in involuting phase HAs. HDECs were treated with the ROCK inhibitor Y-27632. Y-27632 induced p53 expression and downregulated VEGF expression, significantly inhibited cell proliferation, and induced cell apoptosis in HA cells. The inhibitor effects were confirmed in HAs from HDEC-injected nude mice. These results indicated that ROCK is involved in p53-mediated apoptosis and VEGF expression in HA cells and suggested that such inhibition may be exploited for future HA therapies.
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Affiliation(s)
- Ming-Ke Qiu
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Shu-Qing Wang
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Chang Pan
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Yang Wang
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Zhi-Wei Quan
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Ying-Bin Liu
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
| | - Jing-Min Ou
- Department of General Surgery, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai 200092, P.R. China
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5
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Etti IC, Rasedee A, Hashim NM, Abdul AB, Kadir A, Yeap SK, Waziri P, Malami I, Lim KL, Etti CJ. Artonin E induces p53-independent G1 cell cycle arrest and apoptosis through ROS-mediated mitochondrial pathway and livin suppression in MCF-7 cells. Drug Des Devel Ther 2017; 11:865-879. [PMID: 28356713 PMCID: PMC5367776 DOI: 10.2147/dddt.s124324] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Artonin E is a prenylated flavonoid compound isolated from the stem bark of Artocarpus elasticus. This phytochemical has been previously reported to be drug-like with full compliance to Lipinski's rule of five and good physicochemical properties when compared with 95% of orally available drugs. It has also been shown to possess unique medicinal properties that can be utilized in view of alleviating most human disease conditions. In this study, we investigated the cytotoxic mechanism of Artonin E in MCF-7 breast cancer cells, which has so far not been reported. In this context, Artonin E significantly suppressed the breast cancer cell's viability while inducing apoptosis in a dose-dependent manner. This apoptosis induction was caspase dependent, and it is mediated mainly through the intrinsic pathway with the elevation of total reactive oxygen species. Gene and protein expression studies revealed significant upregulation of cytochrome c, Bax, caspases 7 and 9, and p21 in Artonin E-treated MCF-7 cells, while MAPK and cyclin D were downregulated. Livin, a member of the inhibitors of apoptosis, whose upregulation has been noted to precede chemotherapeutic resistance and apoptosis evasion was remarkably repressed. In all, Artonin E stood high as a potential agent in the treatment of breast cancer.
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Affiliation(s)
- Imaobong Christopher Etti
- Pharmacology and Toxicology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
- Department of Pharmacology and Toxicology, University of Uyo, Uyo, Nigeria
| | - Abdullah Rasedee
- Department of Veterinary Pathology and Microbiology, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Malaysia
| | - Najihah Mohd Hashim
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ahmad Bustamam Abdul
- MAKNA-Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Arifah Kadir
- Department of Veterinary Preclinical Science, Universiti Putra Malaysia, Serdang, Malaysia
| | - Swee Keong Yeap
- Laboratory of Vaccine and Immunotherapeutics, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Peter Waziri
- MAKNA-Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Ibrahim Malami
- MAKNA-Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Kian Lam Lim
- Faculty of Medicine and Health Sciences, Universiti Tunku Abdul Rahman, Cheras, Selangor, Malaysia
| | - Christopher J Etti
- Department of Agricultural and Food Engineering, University of Uyo, Uyo, Nigeria
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6
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Prognostic significance of Livin expression in nasopharyngeal carcinoma after radiotherapy. Cancer Radiother 2016; 20:384-90. [DOI: 10.1016/j.canrad.2016.05.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Revised: 05/04/2016] [Accepted: 05/15/2016] [Indexed: 01/12/2023]
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7
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Ge Y, Cao X, Wang D, Sun W, Sun H, Han B, Cui J, Liu B. Overexpression of Livin promotes migration and invasion of colorectal cancer cells by induction of epithelial-mesenchymal transition via NF-κB activation. Onco Targets Ther 2016; 9:1011-21. [PMID: 27013894 PMCID: PMC4778785 DOI: 10.2147/ott.s93738] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Livin is a novel member of the inhibitors of apoptosis protein family and has been implicated in the development and progression of colorectal cancer (CRC). However, the underlying mechanisms of Livin in CRC remain not fully understood. In this study, we investigated the effects of Livin expression on the proliferation and metastasis of CRC cells and also addressed its related molecular mechanism to metastasis. The expression of Livin in CRC cells (HCT116, SW480, and HT-29 cell lines) was determined by Western blot analysis. Our results show that the overexpression of Livin significantly promotes the proliferation, migration, and invasion of SW480 cells. Concurrently, the inhibition of Livin reduces the proliferation, migration, and invasion of HCT116 cells. In addition, Livin overexpression promotes the epithelial–mesenchymal transition, as evidenced by a decrease in epithelial E-cadherin expression and an increase in mesenchymal markers, including vimentin, Slug, and Snail. Furthermore, adding the NF-κB inhibitor, BAY 11-7028, or transfecting with small interfering RNA against p65 notably restores the expression level of E-cadherin and attenuates the invasive ability of Livin-overexpressing cells. Taken together, these results indicate that Livin potentiates migration and invasion of CRC cells partially through the induction of epithelial–mesenchymal transition via NF-κB activation. Livin may be a potential therapeutic target for CRC.
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Affiliation(s)
- Yang Ge
- The Sixth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China; Department of General Surgery, General Hospital Under the Fushun Mining Affairs Bureau, Fushun, People's Republic of China
| | - Xiankui Cao
- The Sixth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Dalu Wang
- The Eighth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, Liaoning, People's Republic of China
| | - Wei Sun
- The Sixth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Hongli Sun
- The Sixth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Bing Han
- The Sixth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Junpeng Cui
- The Sixth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Baolin Liu
- The Sixth Department of General Surgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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8
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Tan BB, Zhang MM, Li Y, Zhao Q, Fan LQ, Liu Y, Wang D. Inhibition of Vav3 gene can promote apoptosis of human gastric cancer cell line MGC803 by regulating ERK pathway. Tumour Biol 2015; 37:7823-33. [PMID: 26695150 DOI: 10.1007/s13277-015-4505-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Accepted: 11/24/2015] [Indexed: 11/26/2022] Open
Abstract
Previous studies proved that Vav3 gene was overexpressed in cancers. However, the molecular mechanism of Vav3 in apoptosis still keeps unclear; therefore, the relationship between Vav3 gene and apoptosis of gastric cancer (GC) was explored in the present study. Vav3-siRNA was transfected into MGC803 cells, and then cell activity and apoptosis rate were tested with MTT and FCM; apoptosis-related genes and proteins in MAPK signaling pathway were also tested. Results showed that Vav3 was overexpressed in GC than in adjacent normal tissues (all P < 0.05), and expression of Vav3 was related to degree of histological differentiation, cancer invasion depth, and lymphatic metastasis (Χ (2) = 7.185, P = 0.007; Χ (2) = 18.654, P < 0.001; Χ (2) = 5.058, P = 0.025). Vav3 silencing inhibited activity of MGC803 cells, and apoptosis rate of cells was affected. Vav3-siRNA transfection led to changes of apoptosis-related genes such as Survivin, xIAP, Bcl-2, caspase-3, and Bax (all P < 0.01). After transfection, ratio of phosphorylation of ERK significantly reduced. We concluded that Vav3 inhibition can suppress cell activity and promote apoptosis by regulating the apoptosis-related genes through the ERK pathway.
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Affiliation(s)
- Bi-Bo Tan
- Department of General Surgery, the Fourth Affiliated Hospital, Hebei Medical University, No.12, Jian-Kang Road, Shijiazhuang, 050011, China
| | - Ming-Ming Zhang
- Department of Medical laboratory, HeBei General Hospital, 348 He-Ping West St, Shijiazhuang, 050051, China
| | - Yong Li
- Department of General Surgery, the Fourth Affiliated Hospital, Hebei Medical University, No.12, Jian-Kang Road, Shijiazhuang, 050011, China.
| | - Qun Zhao
- Department of General Surgery, the Fourth Affiliated Hospital, Hebei Medical University, No.12, Jian-Kang Road, Shijiazhuang, 050011, China
| | - Li-Qiao Fan
- Department of General Surgery, the Fourth Affiliated Hospital, Hebei Medical University, No.12, Jian-Kang Road, Shijiazhuang, 050011, China
| | - Yu Liu
- Department of General Surgery, the Fourth Affiliated Hospital, Hebei Medical University, No.12, Jian-Kang Road, Shijiazhuang, 050011, China
| | - Dong Wang
- Department of General Surgery, the Fourth Affiliated Hospital, Hebei Medical University, No.12, Jian-Kang Road, Shijiazhuang, 050011, China
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LIN XIAN, LI HONGRU, LIN XIAOFEN, YU MEIE, TU XUNWEI, HUA ZHIDAN, LIN MING, XU NENGLUAN, HAN LILI, CHEN YUSHENG. Silencing of Livin inhibits tumorigenesis and metastasis via VEGF and MMPs pathway in lung cancer. Int J Oncol 2015; 47:657-67. [PMID: 26094984 DOI: 10.3892/ijo.2015.3058] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Accepted: 05/08/2015] [Indexed: 11/06/2022] Open
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10
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Zhuang L, Shen LD, Li K, Yang RX, Zhang QY, Chen Y, Gao CL, Dong C, Bi Q, Tao JN, Wang XN, Tian Q. Inhibition of livin expression suppresses cell proliferation and enhances chemosensitivity to cisplatin in human lung adenocarcinoma cells. Mol Med Rep 2015; 12:547-52. [PMID: 25695324 DOI: 10.3892/mmr.2015.3372] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 12/03/2014] [Indexed: 11/06/2022] Open
Abstract
Livin is a novel member of the inhibitor of apoptosis protein family that has been reported to be overexpressed in various types of human malignancy. Although several studies have demonstrated that livin may be used as an effective target for tumor therapy, few studies have investigated its role in human lung adenocarcinoma. In the present study, two different methods were used in order to investigate the tumor‑suppressing effect of livin in human lung adenocarcinoma cells. Firstly, small interfering (si)RNA technology was used to down regulate livin expression; siRNA-mediated knockdown of livin was confirmed using reverse transcription quantitative polymerase chain reaction and western blot analysis, and cell proliferations was assessed using an MTT assay in vitro. Secondly, inhibition of livin expression was induced through the synergistic inhibitory effect between flavopiridol and tumor necrosis factor‑related apoptosis-inducing ligand (TRAIL). Experimental results revealed that, following transfection of the livin gene-silencing vector, the gene expression of livin was markedly decreased, SPC-A1 cell proliferation was significantly reduced and the therapeutic effect of the chemotherapy drug cisplatin was markedly improved. This growth inhibitory effect was also observed in the flavopiridol and TRAIL combination treatment group. In the flavopiridol and TRAIL combination treatment group, the protein expression of livin was significantly reduced and the survival rate of SPC‑A1 cells was significantly lower than the flavopiridol and TRAIL single operation group. In conclusion, the RNA silencing and the synergistic inhibitory effect between flavopiridol with TRAIL was able to effectively inhibit the expression of livin, significantly decrease SPC-A1 tumor cell proliferation and significantly enhance sensitivity to the chemotherapy drug cisplatin. These findings suggest that livin may be used as a novel target for tumor gene therapy.
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Affiliation(s)
- Li Zhuang
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Li-Da Shen
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Kun Li
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Run-Xiang Yang
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Qin-Yong Zhang
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Yun Chen
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Chun-Lin Gao
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Chao Dong
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Qing Bi
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Jing-Nan Tao
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Xiao-Nan Wang
- Department of Medical Oncology, Yunnan Cancer Hospital, Kunming Medical University, Kunming, Yunnan 650118, P.R. China
| | - Qing Tian
- Department of Cardiology, The First People's Hospital of Kunming, Yunnan 650011, P.R. China
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11
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Yan X, Rui X, Zhang K. Baicalein inhibits the invasion of gastric cancer cells by suppressing the activity of the p38 signaling pathway. Oncol Rep 2014; 33:737-43. [PMID: 25502212 DOI: 10.3892/or.2014.3669] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2014] [Accepted: 07/21/2014] [Indexed: 12/16/2022] Open
Abstract
Baicalein, one of the major flavonoids in Scutellaria baicalensis, has been used in anti-inflammatory and anticancer therapies for a long time. However, the antimetastatic effects and related mechanism(s) in gastric cancer remain unclear. In the present study, we tested the hypothesis that administration of baicalein may inhibit the proliferation, motility and invasion of human gastric cancer cell lines by regulating the p38 signaling pathway. In the present study, we found that baicalein could inhibit migration and invasion of gastric cancer cells. Additionally, after treating with baicalein for 24 h, the expression levels of matrix metalloproteinase (MMP)-2 and -9 as well as proteinase activity in gastric cancer cells were reduced in a dose-dependent manner. Moreover, baicalein clearly reduced the phosphorylated levels of p38. Combined treatment with p38 activator partially blocked the antimetastatic effects of baicalein, while p38 inhibitor (SB203580) and baicalein resulted in a synergistic reduction in MMP-2 and -9 expression; the invasive ability of gastric cancer cells was also inhibited. In conclusion, baicalein inhibits gastric cancer cell invasion and metastasis by reducing cell motility and migration via suppression of the p38 signaling pathway, suggesting that baicalein is a potential therapeutic agent for gastric cancer.
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Affiliation(s)
- Xi Yan
- Department of Gastroenterology, 323 Hospital of People's Liberation Army, Xi'an, Shaanxi 710054, P.R. China
| | - Xiaojiang Rui
- Department of Gastroenterology, 323 Hospital of People's Liberation Army, Xi'an, Shaanxi 710054, P.R. China
| | - Kai Zhang
- Department of Gastroenterology, 323 Hospital of People's Liberation Army, Xi'an, Shaanxi 710054, P.R. China
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