1
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Babu D, Chintal R, Panigrahi M, Phanithi PB. Distinct expression and function of breast cancer metastasis suppressor 1 in mutant P53 glioblastoma. Cell Oncol (Dordr) 2022; 45:1451-1465. [PMID: 36284039 DOI: 10.1007/s13402-022-00729-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/08/2022] [Indexed: 01/10/2023] Open
Abstract
PURPOSE Glioblastoma (GBM) is the most malignant subtype of astrocytic tumors with the worst prognosis in all its progressive forms. Breast cancer metastasis suppressor 1 (BRMS1) is a metastasis suppressor gene that controls malignancy in multiple tumors. As yet, however, its clinical and functional significance in mutant P53 GBM remains inconclusive. Here, we attempted to study the importance of BRMS1 in mutant P53 GBM. METHODS BRMS1 expression was evaluated in 74 human astrocytoma tissues by qRT-PCR, Western blotting and immunohistochemistry. BRMS1 expression in the astrocytoma tissues was correlated with clinicopathological parameters, the P53 mutation status and BRMS1 downstream targets, and compared with TCGA and NCI-60 datasets. siRNA-mediated knockdown of BRMS1 was performed in selected GBM cell lines to evaluate the functional role of BRMS1. RESULTS Our study revealed an enhanced expression of BRMS1 in GBM which was associated with a poor patient survival, and this observation was corroborated by the TCGA dataset. We also found a positive correlation between BRMS1 expression and a mutant P53 status in GBM which was associated with a poor prognosis. In vitro BRMS1 silencing reduced the growth of mutant P53 GBM cells and repressed their colonization and migration/invasion by modulating EGFR-AKT/NF-κB signaling. Transcriptional profiling revealed a positive and negative correlation of uPA and ING4 expression with BRMS1 expression, respectively. CONCLUSION Our data indicate upregulation of BRMS1 in high grade astrocytomas which correlates positively with mutant P53 and a poor patient survival. Silencing of BRMS1 in mutant P53 GBM cell lines resulted in a reduced cellular growth and migration/invasion by suppressing the EGFR-AKT/NF-kB signaling pathway. BRMS1 may serve as a predictive biomarker and therapeutic target in mutant P53 GBM.
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Affiliation(s)
- Deepak Babu
- Neuroscience Laboratory, Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad, Room No: F-23/F-71, Hyderabad, Telangana State, 500 046, India
| | - Ramulu Chintal
- Neuroscience Laboratory, Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad, Room No: F-23/F-71, Hyderabad, Telangana State, 500 046, India
| | - Manas Panigrahi
- Department of Neurosurgery, Krishna Institute of Medical Sciences, 500 003, Secunderabad, Telangana State, India
| | - Prakash Babu Phanithi
- Neuroscience Laboratory, Department of Biotechnology and Bioinformatics, School of Life Sciences, University of Hyderabad, Room No: F-23/F-71, Hyderabad, Telangana State, 500 046, India.
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2
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Xiong J, Tu Y, Feng Z, Li D, Yang Z, Huang Q, Li Z, Cao Y, Jie Z. Epigenetics mechanisms mediate the miR-125a/BRMS1 axis to regulate invasion and metastasis in gastric cancer. Onco Targets Ther 2019; 12:7513-7525. [PMID: 31571904 PMCID: PMC6753057 DOI: 10.2147/ott.s210376] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Accepted: 08/17/2019] [Indexed: 12/24/2022] Open
Abstract
Purpose Altered expression of breast cancer metastasis suppressor 1 (BRMS1), is a tumor suppressor, which is found in many types of cancers, including gastric cancer (GC), but the mechanism by which BRMS1 inhibits invasion and metastasis in GC is unknown. The aim of the study was to investigate the molecular mechanisms of miR-125a/BRMS1 in GC. Materials and methods The expression of BRMS1 and miR-125a were detected by quantitative real-time PCR (qRT-PCR) and analyzed by bioinformatics. BSP and MSP were used to detecte the methylation status of miR-125a and BRMS1 which was treated by 5-Aza or not. Western Blot and qRT-PCR were used to analyze the expression of BRMS1 and EZH2. Transwell was performed to explore the invasion and metastasis ability of GC cells. The nude mice were used for the tumor formation assay. Results BRMS1 may be regulated by copy number variation (CNV), methylation and miR-125a-5p. As one of the essential components of PRC2, EZH2 is an important regulatory factor resulting in the low expression of miR-125a. An epigenetic mechanism mediates the miR-125a/BRMS1 axis to inhibit the invasion and metastasis of GC cells. In vivo experiments, it is also showed that BRMS1 is involved in invasion and metastasis but not the proliferation in GC. Conclusion These studies shed light on the mechanism of BRMS1 inhibition of GC invasion and metastasis and the development of new drugs targeting the miR-125a/BRMS1 axis, which will be a promising therapeutic strategy for GC and other human cancers.
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Affiliation(s)
- Jianbo Xiong
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
| | - Yi Tu
- Department of Pathology, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
| | - Zongfeng Feng
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
| | - Daojiang Li
- Department of General Surgery, Zhongnan Hospital of Wuhan University, Wuhan 430071, Hubei Province, People's Republic of China
| | - Zhouwen Yang
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
| | - Qiuxia Huang
- Department of Nursing, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
| | - Zhengrong Li
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
| | - Yi Cao
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
| | - Zhigang Jie
- Department of Gastrointestinal Surgery, First Affiliated Hospital, Nanchang University, Nanchang 330006, Jiangxi Province, People's Republic of China
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3
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Tajbakhsh A, Rivandi M, Abedini S, Pasdar A, Sahebkar A. Regulators and mechanisms of anoikis in triple-negative breast cancer (TNBC): A review. Crit Rev Oncol Hematol 2019; 140:17-27. [DOI: 10.1016/j.critrevonc.2019.05.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 12/13/2018] [Accepted: 05/14/2019] [Indexed: 12/17/2022] Open
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4
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Gimba E, Brum M, Nestal De Moraes G. Full-length osteopontin and its splice variants as modulators of chemoresistance and radioresistance (Review). Int J Oncol 2018; 54:420-430. [DOI: 10.3892/ijo.2018.4656] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 10/25/2018] [Indexed: 11/06/2022] Open
Affiliation(s)
- Etel Gimba
- Program of Cellular and Molecular Oncobiology, National Cancer Institute, Rio de Janeiro 20231-050, Brazil
| | - Mariana Brum
- Program of Cellular and Molecular Oncobiology, National Cancer Institute, Rio de Janeiro 20231-050, Brazil
| | - Gabriela Nestal De Moraes
- Cellular and Molecular Hemato-Oncology Laboratory, Molecular Hemato-Oncology Program, National Cancer Institute, Rio de Janeiro 20230-130, Brazil
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5
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Qiu R, Shi H, Wang S, Leng S, Liu R, Zheng Y, Huang W, Zeng Y, Gao J, Zhang K, Hou Y, Feng D, Yang Y. BRMS1 coordinates with LSD1 and suppresses breast cancer cell metastasis. Am J Cancer Res 2018; 8:2030-2045. [PMID: 30416854 PMCID: PMC6220148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Accepted: 09/26/2018] [Indexed: 06/09/2023] Open
Abstract
Breast carcinoma metastasis suppressor gene 1 (BRMS1) encodes an inhibitor of metastasis and is reported in many types of tumor metastasis. However, the mechanism of BRMS1-mediated inhibition of breast cancer metastasis at the transcriptional level remains elusive. Here, we identified using affinity purification and mass spectrometry (MS) that BRMS1 is an integral component of the LSD1/CoREST corepressor complex. Analysis of the BRMS1/LSD1 complex using high-throughput RNA deep sequencing (RNA-seq) identified a cohort of target genes such as VIM, INSIG2, KLK11, MRPL33, COL5A2, OLFML3 and SLC1A1, some of which are metastasis-related. Our results have showed that BRMS1 together with LSD1 are required for inhibition of breast cancer cell migration and invasion. Collectively, these findings demonstrate that BRMS1 executes transcriptional suppression of breast cancer metastasis by associating with the LSD1 and thus can be targeted for breast cancer therapy.
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Affiliation(s)
- Rongfang Qiu
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Hang Shi
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Shuang Wang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Shuai Leng
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Ruiqiong Liu
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Yu Zheng
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Wei Huang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Yi Zeng
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Jie Gao
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Kai Zhang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Yongqiang Hou
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Dandan Feng
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
| | - Yang Yang
- 2011 Collaborative Innovation Center of Tianjin for Medical Epigenetics, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Tianjin 300070, China
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Qiao X, Zhou Y, Xie W, Wang Y, Zhang Y, Tian T, Dou J, Yang X, Shen S, Hu J, Qiao S, Wu Y. Scinderin is a novel transcriptional target of BRMS1 involved in regulation of hepatocellular carcinoma cell apoptosis. Am J Cancer Res 2018; 8:1008-1018. [PMID: 30034938 PMCID: PMC6048394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 05/18/2018] [Indexed: 06/08/2023] Open
Abstract
Tumor metastasis suppressor factor BRMS1 can regulate the metastasis of breast cancer and other tumors. Here we report scinderin (SCIN) as a novel transcriptional target of BRMS1. SCIN protein belongs to the cytoskeletal gelsolin protein superfamily and its involvement in tumorigenesis remains largely illusive. An inverse correlation between the expression levels of BRMS1 and SCIN was observed in hepatocellular carcinoma (HCC) cells and tissues. On the molecular level, BRMS1 binds to SCIN promoter and exerts a suppressive role in regulating SCIN transcription. FACS analysis and caspase 9 immunoblot reveal that knockdown of SCIN expression can sensitize HCC cells to chemotherapeutic drugs, leading to suppression of tumor growth in vivo. Consistently, overexpression of SCIN protects cells from apoptotic death, contributing to increased xenografted HCC cell growth. In summary, our study reveals SCIN as a functional apoptosis regulator as well as a novel target of BRMS1 during HCC tumorigenesis. Inhibition of SCIN might bring a potential cancer therapy approach.
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Affiliation(s)
- Xiaojing Qiao
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Yiren Zhou
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Wenjuan Xie
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Yi Wang
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Yicheng Zhang
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Tian Tian
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
- Centre for Discovery Brain Sciences, University of EdinburghEdinburgh, EH89XD, Scotland
| | - Jianming Dou
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Xi Yang
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Suqin Shen
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Jianwei Hu
- Endoscopy Center and Department of General Surgery, Zhongshan Hospital of Fudan UniversityShanghai 200032, P. R. China
| | - Shouyi Qiao
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
| | - Yanhua Wu
- School of Life Sciences, Fudan UniversityShanghai 200433, P. R. China
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7
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Cao Y, Tan S, Tu Y, Zhang G, Liu Y, Li D, Xu S, Le Z, Xiong J, Zou W, Gong P, Li Z, Jie Z. MicroRNA-125a-5p inhibits invasion and metastasis of gastric cancer cells by targeting BRMS1 expression. Oncol Lett 2018; 15:5119-5130. [PMID: 29552146 DOI: 10.3892/ol.2018.7983] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 09/07/2017] [Indexed: 12/12/2022] Open
Abstract
Accumulating studies have demonstrated microRNAs (miRNAs/miRs) have an important role in multiple processes of human malignant tumor development and progression. Decreased expression of miR-125a-5p has been observed in several types of cancer, including gastric cancer (GC). However, the mechanism and exact function of miR-125a-5p in GC have not been largely elucidated. In the present study, reverse transcription-quantitative polymerase chain reaction indicated that the expression of miR-125a-5p was downregulated in GC tissues and cell lines compared with matched normal tissues (P<0.01) and normal gastric mucosa cell lines (P<0.01), respectively. Moreover, clinical pathological characteristics and Kaplan-Meier analysis indicated that a low expression of miR-125a-5p was not only associated with lymph metastasis, peritoneal dissemination and advanced tumor-node metastasis stage but also affected the prognosis of GC patients. Compared with miR-control-transfected GC cells, markedly decreased migration and invasion was observed in GC cells that overexpress miR-125a-5p. By contrast, increased metastasis and invasion were observed in miR-125a-5p-knocked down cells compared with the control. Furthermore, luciferase reporter assays indicated that breast cancer metastasis suppressor 1 (BRMS1) was a direct target of miR-125a-5p. Notably, a positive correlation between the levels of BRMS1 and miR-125a-5p in GC tissues was observed, and BRMS1 expression was indicated to be regulated by miR-125a-5p in GC cells. In conclusion, miR-125a-5p may act as a tumor suppressor by targeting the metastasis-inhibitory gene, BRMS1. The data suggesting that BRMS1 is a potential target gene of miR-125a-5p, may provide novel insight into miRNA regulation of human gene expression, and a useful target for gene therapy of GC.
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Affiliation(s)
- Yi Cao
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Shengxing Tan
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yi Tu
- Department of Pathology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Guoyang Zhang
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Yi Liu
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Daojiang Li
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Shan Xu
- Department of Pathology, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhibiao Le
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Jianbo Xiong
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Wenyu Zou
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Peitao Gong
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhengrong Li
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
| | - Zhigang Jie
- Department of General Surgery, First Affiliated Hospital, Nanchang University, Nanchang, Jiangxi 330006, P.R. China
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8
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Koyama R, Tamura M, Nakagaki T, Ohashi T, Idogawa M, Suzuki H, Tokino T, Sasaki Y. Identification and characterization of a metastatic suppressor BRMS1L as a target gene of p53. Cancer Sci 2017; 108:2413-2421. [PMID: 29030916 PMCID: PMC5715288 DOI: 10.1111/cas.13420] [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: 05/31/2017] [Revised: 10/03/2017] [Accepted: 10/04/2017] [Indexed: 12/18/2022] Open
Abstract
The tumor suppressor p53 and its family members, p63 and p73, play a pivotal role in the cell fate determination in response to diverse upstream signals. As transcription factors, p53 family proteins regulate a number of genes that are involved in cell cycle arrest, apoptosis, senescence, and maintenance of genomic stability. Recent studies revealed that p53 family proteins are important for the regulation of cell invasion and migration. Microarray analysis showed that breast cancer metastasis suppressor 1‐like (BRMS1L) is upregulated by p53 family proteins, specifically p53, TAp63γ, and TAp73β. We identified two responsive elements of p53 family proteins in the first intron and upstream of BRMS1L. These response elements are well conserved among mammals. Functional analysis showed that ectopic expression of BRMS1L inhibited cancer cell invasion and migration; knockdown of BRMS1L by siRNA induced the opposite effect. Importantly, clinical databases revealed that reduced BRMS1L expression correlated with poor prognosis in patients with breast and brain cancer. Together, these results strongly indicate that BRMS1L is one of the mediators downstream of the p53 pathway, and that it inhibits cancer cell invasion and migration, which are essential steps in cancer metastasis. Collectively, our results indicate that BRMS1L is involved in cancer cell invasion and migration, and could be a therapeutic target for cancer.
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Affiliation(s)
- Ryota Koyama
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan
| | - Miyuki Tamura
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan
| | - Takafumi Nakagaki
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan
| | - Tomoko Ohashi
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan
| | - Masashi Idogawa
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan
| | - Hiromu Suzuki
- Department of Molecular Biology, Sapporo Medical University, Sapporo, Japan
| | - Takashi Tokino
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan
| | - Yasushi Sasaki
- Department of Medical Genome Sciences, Research Institute for Frontier Medicine, Sapporo Medical University, Sapporo, Japan
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9
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Paul AM, Acharya D, Duty L, Thompson EA, Le L, Stokic DS, Leis AA, Bai F. Osteopontin facilitates West Nile virus neuroinvasion via neutrophil "Trojan horse" transport. Sci Rep 2017; 7:4722. [PMID: 28680095 PMCID: PMC5498593 DOI: 10.1038/s41598-017-04839-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 05/22/2017] [Indexed: 01/26/2023] Open
Abstract
West Nile virus (WNV) can cause severe human neurological diseases including encephalitis and meningitis. The mechanisms by which WNV enters the central nervous system (CNS) and host-factors that are involved in WNV neuroinvasion are not completely understood. The proinflammatory chemokine osteopontin (OPN) is induced in multiple neuroinflammatory diseases and is responsible for leukocyte recruitment to sites of its expression. In this study, we found that WNV infection induced OPN expression in both human and mouse cells. Interestingly, WNV-infected OPN deficient (Opn -/-) mice exhibited a higher survival rate (70%) than wild type (WT) control mice (30%), suggesting OPN plays a deleterious role in WNV infection. Despite comparable levels of viral load in circulating blood cells and peripheral organs in the two groups, WNV-infected polymorphonuclear neutrophil (PMN) infiltration and viral burden in brain of Opn -/- mice were significantly lower than in WT mice. Importantly, intracerebral administration of recombinant OPN into the brains of Opn -/- mice resulted in increased WNV-infected PMN infiltration and viral burden in the brain, which was coupled to increased mortality. The overall results suggest that OPN facilitates WNV neuroinvasion by recruiting WNV-infected PMNs into the brain.
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Affiliation(s)
- Amber M Paul
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Dhiraj Acharya
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Laurel Duty
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - E Ashley Thompson
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Linda Le
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS, 39406, USA
| | - Dobrivoje S Stokic
- Center for Neuroscience and Neurological Recovery, Methodist Rehabilitation Center, Jackson, MS, 39216, USA
| | - A Arturo Leis
- Center for Neuroscience and Neurological Recovery, Methodist Rehabilitation Center, Jackson, MS, 39216, USA.,Department of Neurology, Mayo Clinic, Scottsdale, AZ, 85259, USA
| | - Fengwei Bai
- Department of Biological Sciences, The University of Southern Mississippi, Hattiesburg, MS, 39406, USA.
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10
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Qiao X, Yang X, Zhou Y, Mei X, Dou J, Xie W, Li G, Wang Y, Qiao S, Hu J, Wu Y. Characterization of DAPK1 as a novel transcriptional target of BRMS1. Int J Oncol 2017; 50:1760-1766. [PMID: 28339067 DOI: 10.3892/ijo.2017.3930] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 02/23/2017] [Indexed: 11/06/2022] Open
Abstract
Breast cancer metastasis suppressor 1 (BRMS1) can specifically regulate tumor metastasis in many cancers. Our previous studies have demonstrated that BRMS1 can promote cell apoptosis through regulating osteopontin (OPN) expression in hepatocellular carcinoma (HCC) cells. However, the transcriptional targets of BRMS1 have not been thoroughly studied. In this study, death-associated protein kinase 1 (DAPK1), a tumor suppressor gene with multiple roles in regulating cell death, was identified as a potential transcriptional target of BRMS1 in the whole genome expression microarray. Quantitative real-time PCR and western blot analysis of HCC cells overexpressing BRMS1 further confirmed the transcriptional regulation relationship between BRMS1 and DAPK1. Moreover, DAPK1 expression was frequently decreased or even lost in HCC tissue samples by comparison with neighboring pathologically normal liver tissue, which was consistent with the decreased BRMS1 expression pattern. To unravel the molecular mechanism of BRMS1 in regulating DAPK1, a series of deletion mutants of DAPK1 promoter was subjected to luciferase assay. The luciferase units of -200 to -80 bp region, with two tandem putative NF-κB binding sites, were specifically enhanced by BRMS1 expression. Site-directed mutants of NF-κB binding sites blocked the transcriptional activation effect. In addition, the binding capability of BRMS1 and the putative NF-κB binding sites were demonstrated in the chromatin immunoprecipitation (ChIP) assay. In conclusion, our study characterized DAPK1 as a novel transcriptional target of BRMS1. Transcriptional activation of DAPK1 might be another important mechanism accounting for the metastasis suppressive activity of BRMS1.
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Affiliation(s)
- Xiaojing Qiao
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Xi Yang
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Yiren Zhou
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Xinyu Mei
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Jianming Dou
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Wenjuan Xie
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Guoqing Li
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Yekai Wang
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Shouyi Qiao
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
| | - Jianwei Hu
- Endoscopy Center and Department of General Surgery, Zhongshan Hospital of Fudan University, Shanghai, 200032, P.R. China
| | - Yanhua Wu
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
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11
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Wang G, Zhao C, Chen S, Li X, Zhang L, Chang C, Xu C. A preliminary in vivo study of the effects of OPN on rat liver regeneration induced by partial hepatectomy. Mol Biol Rep 2016; 43:1371-1382. [PMID: 27585571 DOI: 10.1007/s11033-016-4071-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2015] [Accepted: 08/25/2016] [Indexed: 01/15/2023]
Abstract
Osteopontin (OPN) is a member of Th1 cytokine secreted by activated lymphocytes and macrophages. However, it deserves to be studied whether OPN could promote cell activation or proliferation, and then facilitate hepatic self-repair during liver regeneration (LR). This study is designed to further reveal the effects of OPN on LR in vivo. Firstly, quantitative reverse transcription-PCR (qRT-PCR) and western blot (WB) were utilized to validate the expression profile of endogenous OPN in rat regenerating livers after partial hepatectomy (PH). Then OPN expression vector, two shRNA expression vectors and their respective test vectors were successfully constructed. Afterwards, test vectors were administrated into mouse livers via tail vein to find the more efficient shRNA. Furthermore, OPN expression vector and the more efficient shRNA expression vector were injected into rat regenerating livers, and then the changes in liver regeneration and hepatic microstructure were respectively detected by liver regeneration rate and HE staining, while the expressions of several marker genes were detected by qRT-PCR and WB. Endogenous OPN was strikingly up-regulated in both mRNA and protein level during LR, especially at 12 and 72 h after PH. The shRNA expression vector Opn(313) was found to be more efficient than Opn(887) in silencing the expression of Opn. Then OPN expression vector and Opn(313) were injected into rat remnant livers, and it showed that OPN overexpression aggravated hepatic necrosis and leukocytes infiltration, while OPN silencing inhibited liver regeneration rate and the expressions of PCNA and CCL2, but augmented that of BAX. In conclusion, OPN might enhance inflammation and cell proliferation, attenuate cell apoptosis, and ultimately facilitate liver regeneration at the termination stage of liver regeneration.
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Affiliation(s)
- Gaiping Wang
- College of Life Science, Henan Normal University, No. 46, Construction East Road, Xinxiang, 453007, Henan, China.,State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Congcong Zhao
- College of Life Science, Henan Normal University, No. 46, Construction East Road, Xinxiang, 453007, Henan, China.,State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Shasha Chen
- College of Life Science, Henan Normal University, No. 46, Construction East Road, Xinxiang, 453007, Henan, China.,State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Xiaofang Li
- College of Life Science, Henan Normal University, No. 46, Construction East Road, Xinxiang, 453007, Henan, China.,State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Ling Zhang
- Henan Academy of Fishery Science, Zhengzhou, 450044, Henan, China
| | - Cuifang Chang
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, Henan, China
| | - Cunshuan Xu
- College of Life Science, Henan Normal University, No. 46, Construction East Road, Xinxiang, 453007, Henan, China. .,State Key Laboratory Cultivation Base for Cell Differentiation Regulation, Henan Normal University, Xinxiang, 453007, Henan, China.
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12
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Comparative analysis of gene expression profiles of OPN signalling pathway in four kinds of liver diseases. J Genet 2016; 95:741-50. [DOI: 10.1007/s12041-016-0673-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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Zhou ZJ, Sun L. Edwardsiella tarda-Induced Inhibition of Apoptosis: A Strategy for Intracellular Survival. Front Cell Infect Microbiol 2016; 6:76. [PMID: 27471679 PMCID: PMC4943942 DOI: 10.3389/fcimb.2016.00076] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2016] [Accepted: 06/29/2016] [Indexed: 12/27/2022] Open
Abstract
Edwardsiella tarda is a Gram-negative bacterial pathogen that can infect a wide range of freshwater and marine fish. One salient feature of E. tarda is the ability to survive and replicate in various host cells. In this study, we observed that E. tarda replicated robustly in the zebrafish cell line ZF4, and that E. tarda-infected cells exhibited no detectable signs of apoptosis. Global transcriptome analysis and quantitative real-time RT-PCR revealed that E. tarda infection generally significantly downregulated pro-apoptotic genes and upregulated anti-apoptotic genes. To investigate the role of apoptosis in E. tarda infection, two upregulated anti-apoptotic genes (Fech and Prx3) and two downregulated pro-apoptotic genes (Brms1a and Ivns1a) were overexpressed in zebrafish. Subsequent infection study showed that Fech and Prx3 overexpression significantly promoted E. tarda dissemination in and colonization of fish tissues, while Brms1a and Ivns1a overexpression significantly reduced E. tarda dissemination and colonization. Consistently, when Fech and Prx3 were knocked down in zebrafish, E. tarda infection was significantly inhibited, whereas Brms1a and Ivns1a knockdown significantly enhanced E. tarda infection. These results indicate for the first time that E. tarda prevents apoptosis in teleost as a strategy for intracellular survival, and that some putative apoptotic genes of teleost function in the apoptosis pathway probably in a manner similar to that in mammalian systems.
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Affiliation(s)
- Ze-Jun Zhou
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of SciencesQingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and TechnologyQingdao, China; University of Chinese Academy of SciencesBeijing, China
| | - Li Sun
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of SciencesQingdao, China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and TechnologyQingdao, China
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14
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Liu X, Ehmed E, Li B, Dou J, Qiao X, Jiang W, Yang X, Qiao S, Wu Y. Breast cancer metastasis suppressor 1 modulates SIRT1-dependent p53 deacetylation through interacting with DBC1. Am J Cancer Res 2016; 6:1441-1449. [PMID: 27429856 PMCID: PMC4937745] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 05/22/2016] [Indexed: 06/06/2023] Open
Abstract
Breast cancer metastasis suppressor 1 (BRMS1) is a specific tumor metastasis suppressor implicated in the regulation of chromatin modification and gene transcription. However, the molecular mechanism of BRMS1 remains to be elucidated. Here, we report that DBC1 (deleted in breast cancer 1), is a novel interacting protein of BRMS1. The imperfect leucine zipper motifs of BRMS1 and the N-terminal domain of DBC1 are required for the interaction. DBC1 is identified as an important negative regulator of SIRT1's activity and genotoxic stress response. We demonstrated that BRMS1 is able to interrupt endogenous DBC1-SIRT1 association. Consistently, SIRT1-dependent p53 acetylation under genotoxic stress is also affected by BRMS1. Overall, our results identify BRMS1 as a novel regulator of DBC1-SIRT1 complex and SIRT1-dependent p53 deacetylation.
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Affiliation(s)
- Xueni Liu
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Elphire Ehmed
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Boyao Li
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Jianming Dou
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Xiaojing Qiao
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Wenyong Jiang
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Xi Yang
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Shouyi Qiao
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
| | - Yanhua Wu
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University Shanghai 200438, P. R. China
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15
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Sun X, Liu X, Liu BO, Li S, Zhang D, Guo H. Serum- and glucocorticoid-regulated protein kinase 3 overexpression promotes tumor development and aggression in breast cancer cells. Oncol Lett 2016; 12:437-444. [PMID: 27429652 PMCID: PMC4940681 DOI: 10.3892/ol.2016.4638] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 04/25/2016] [Indexed: 11/25/2022] Open
Abstract
Serum- and glucocorticoid-regulated protein kinase 3 (SGK3) is critical for tumor survival, proliferation and invasion. In the present study we evaluated SGK3 expression in breast tissues and investigated alterations in SGK3 levels in tumor multiplication, progression and apoptosis. Tissue microarray analyses were performed to examine SGK3 expression in breast cancer samples, as well as in adjacent noncancerous and normal tissues. The pEGFP-N1-SGK3 plasmid was transfected into MDA-MB-231 cells to generate SGK3-overexpressing cells. Cell growth assays, colony formation assays, cell cycle analyses, horizontal and vertical migration tests, reverse transcription-polymerase chain reaction and western blot assays were employed to investigate the biological behavior of SGK3-overexpressing cells. SGK3 levels were significantly higher in breast cancer samples compared with adjacent noncancerous and normal tissues. Cell growth curves revealed increased proliferation and decreased apoptosis in SGK3-overexpressing cells. SGK3-overexpressing cells also demonstrated enhanced invasion and migration abilities. SGK3-overexpressing cells had high levels of an apoptosis-related gene (bcl-xl) and invasion-related genes (mmp2 and mmp9), and decreased levels of an anti-apoptosis gene (bad). Phosphorylation of GSK-3β, which is downstream in the phosphoinositide 3-kinase signaling pathway, was activated by SGK3 overexpression. β-catenin phosphorylation did not differ between the SGK3-overexpressing and non-SGK3-overexpressing cells. SGK3 overexpression induces GSK-3β phosphorylation, enhancing apoptosis- and invasion-related genes and proteins and thereby leading to tumor development and aggression in breast cancer cells.
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Affiliation(s)
- Xiaojie Sun
- Department of Biochemistry, Qiqihar Medical University, Qiqihar, Heilongjiang 161006, P.R. China
| | - Xiucai Liu
- Department of Biochemistry, Qiqihar Medical University, Qiqihar, Heilongjiang 161006, P.R. China
| | - B O Liu
- Department of Respiratory Medicine, Third Affiliated Hospital of Qiqihar Medical University, Qiqihar, Heilongjiang 161000, P.R. China
| | - Shuyan Li
- Department of Biochemistry, Qiqihar Medical University, Qiqihar, Heilongjiang 161006, P.R. China
| | - Dongmei Zhang
- Qiqihar Medical University Library, Qiqihar, Heilongjiang 161006, P.R. China
| | - Hongyan Guo
- Department of Biochemistry, Qiqihar Medical University, Qiqihar, Heilongjiang 161006, P.R. China
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16
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You J, He X, Ding H, Zhang T. BRMS1 regulates apoptosis in non-small cell lung cancer cells. Cell Biochem Biophys 2016; 71:465-72. [PMID: 25182004 DOI: 10.1007/s12013-014-0226-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Breast cancer metastasis suppressor 1 (BRMS1) was originally identified as a metastasis suppressor gene in human breast cancer. Previous studies have reported that loss of BRMS1 expression correlates with tumor progression, and poor prognosis in NSCLC. However, the role of BRMS1 in NSCLC is not fully understood. In this study, we found that expression of BRMS1 in A549 cells did not affect cell growth under normal culture conditions but sensitized cells to apoptosis induced by serum deprivation. Consistently, knockdown of endogenous BRMS1 expression in H1299 cells suppressed cell apoptosis. We identified that BRMS1 regulate apoptosis in NSCLC cells by modulating Stat3 activation. Taken together, our results show that BRMS1 sensitizes NSCLC cells to apoptosis through Stat3 signaling pathway, suggesting a potential role of BRMS1 in regulating NSCLC apoptosis and metastasis.
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Affiliation(s)
- Jijun You
- Department of Cardiothoracic Surgery, Taizhou Second People's Hospital, No. 27 Jiankang Road, Taizhou, 225599, China
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17
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Welch D, Manton C, Hurst D. Breast Cancer Metastasis Suppressor 1 (BRMS1): Robust Biological and Pathological Data, But Still Enigmatic Mechanism of Action. Adv Cancer Res 2016; 132:111-37. [PMID: 27613131 DOI: 10.1016/bs.acr.2016.05.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Metastasis requires coordinated expression of multiple genetic cassettes, often via epigenetic regulation of gene transcription. BRMS1 blocks metastasis, but not orthotopic tumor growth in multiple tumor types, presumably via SIN3 chromatin remodeling complexes. Although there is an abundance of strong data supporting BRMS1 as a metastasis suppressor, the mechanistic data directly connecting molecular pathways with inhibition of particular steps in metastasis are not well defined. In this review, the data for BRMS1-mediated metastasis suppression in multiple tumor types are discussed along with the steps in metastasis that are inhibited.
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18
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Effect of BRMS1 expression on proliferation, migration and adhesion of mouse forestomach carcinoma. ASIAN PAC J TROP MED 2015; 8:724-30. [DOI: 10.1016/j.apjtm.2015.07.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Revised: 07/20/2015] [Accepted: 07/20/2015] [Indexed: 11/22/2022] Open
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19
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Wang G, Li X, Chen S, Zhao W, Yang J, Chang C, Xu C. Expression profiles uncover the correlation of OPN signaling pathways with rat liver regeneration at cellular level. Cell Biol Int 2015; 39:1329-40. [DOI: 10.1002/cbin.10523] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Revised: 07/16/2015] [Accepted: 08/07/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Gaiping Wang
- College of Life Science; Henan Normal University; Xinxiang Henan China
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation; Henan Normal University; Xinxiang China
| | - Xiaofang Li
- College of Life Science; Henan Normal University; Xinxiang Henan China
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation; Henan Normal University; Xinxiang China
| | - Shasha Chen
- College of Life Science; Henan Normal University; Xinxiang Henan China
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation; Henan Normal University; Xinxiang China
| | - Weiming Zhao
- College of Life Science; Henan Normal University; Xinxiang Henan China
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation; Henan Normal University; Xinxiang China
| | - Jing Yang
- College of Life Science; Henan Normal University; Xinxiang Henan China
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation; Henan Normal University; Xinxiang China
| | - Cuifang Chang
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation; Henan Normal University; Xinxiang China
| | - Cunshuan Xu
- State Key Laboratory Cultivation Base for Cell Differentiation Regulation; Henan Normal University; Xinxiang China
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20
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Mei P, Bai J, Shi M, Liu Q, Li Z, Fan Y, Zheng J. BRMS1 suppresses glioma progression by regulating invasion, migration and adhesion of glioma cells. PLoS One 2014; 9:e98544. [PMID: 24879377 PMCID: PMC4039505 DOI: 10.1371/journal.pone.0098544] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Accepted: 05/05/2014] [Indexed: 11/21/2022] Open
Abstract
Breast cancer metastasis suppressor 1 (BRMS1) is a metastasis suppressor gene in several solid tumors. However, the expression and function of BRMS1 in glioma have not been reported. In this study, we investigated whether BRMS1 play a role in glioma pathogenesis. Using the tissue microarray technology, we found that BRMS1 expression is significantly decreased in glioma compared with tumor adjacent normal brain tissue (P<0.01, χ2 test) and reduced BRMS1 staining is associated with WHO stages (P<0.05, χ2 test). We also found that BRMS1 was significantly downregulated in glioma cell lines compared to normal human astrocytes (P<0.01, χ2 test). Furthermore, we demonstrated that BRMS1 overexpression inhibited glioma cell invasion by suppressing uPA, NF-κB, MMP-2 expression and MMP-2 enzyme activity. Moreover, our data showed that overexpression of BRMS1 inhibited glioma cell migration and adhesion capacity compared with the control group through the Src-FAK pathway. Taken together, this study suggested that BRMS1 has a role in glioma development and progression by regulating invasion, migration and adhesion activities of cancer cells.
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Affiliation(s)
- Pengjin Mei
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, China
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Jin Bai
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Meilin Shi
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Qinghua Liu
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Zhonglin Li
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, China
| | - Yuechao Fan
- Department of Neurosurgery, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, China
- * E-mail: (JZ); (YF)
| | - Junnian Zheng
- Jiangsu Key Laboratory of Biological Cancer Therapy, Xuzhou Medical College, Xuzhou, Jiangsu, China
- Department of Medical Oncology, The Affiliated Hospital of Xuzhou Medical College, Xuzhou, Jiangsu, China
- * E-mail: (JZ); (YF)
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21
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The prognostic value of osteopontin expression in non-small cell lung cancer: a meta-analysis. J Mol Histol 2014; 45:533-40. [PMID: 24816798 DOI: 10.1007/s10735-014-9574-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Accepted: 04/22/2014] [Indexed: 01/12/2023]
Abstract
To investigate the association of Osteopontin (OPN) expression in tumor tissue with clinicopathological features of non-small cell lung carcinoma (NSCLC) patients. Publications assessing the clinicopathological characteristics and prognostic significance of OPN in expression NSCLC were identified up to March 2014. A meta-analysis of eligible studies was performed using standard statistical methods to clarify the association between OPN expression and these clinical parameters. A total of eleven studies met the inclusion criteria, and included 1536 cases of NSCLC tumor tissue and 340 cases of normal lung tissue. The OPN expression rate in NSCLC tissue was higher than normal tissue [Odds ratio (OR) 6.427; 95% confidence interval (CI) 4.689-8.808; P = 0.000]. Simultaneously, we also found that OPN expression was positively associated with stage (OR 0.332; 95% CI 0.250-0.440; P = 0.000), lymph node metastasis (OR 3.094; 95% CI 2.295-4.172; P = 0.000), tumor size (tumor size <3 cm vs. ≥3 cm; OR 0.484; 95% CI 0.303-0.773; P = 0.002) and pathology (OR 0.611; 95% CI 0.466-0.800; P = 0.000). It was unrelated that OPN expression in NSCLC tissue with and degree of differentiation and other clinical features (P > 0.05). Experimental findings indicate that, OPN plays a crucial role in the development of NSCLC.
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22
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Abstract
Thyroid cancer incidence is rising annually largely related to enhanced detection and early stage well-differentiated primary tumors. The prognosis for patients with early stage thyroid cancer is outstanding with most patients being cured with surgery. In selected cases, I-131 is administered to treat known or suspected residual or metastatic disease. Even patients with loco-regional metastases typically have an outstanding long-term prognosis, albeit with monitoring and occasional intervention for residual or recurrent disease. By contrast, individuals with distant metastases from thyroid cancer, particularly older patients with larger metastatic burdens and those with poorly differentiated tumors, have a poor prognosis. Patients with metastatic anaplastic thyroid cancer have a particularly poor prognosis. Published clinical trials indicate that transient disease control and partial remissions can be achieved with kinase inhibitor therapy directed toward angiogenic targets and that in some cases I-131 uptake can be enhanced. However, the direct targets of activity in metastatic lesions are incompletely defined and clear evidence that these treatments increase the duration or quality of life of patients is lacking, underscoring the need for improved knowledge regarding the metastatic process to inform the development of new therapies. In this review, we will focus on current data and hypotheses regarding key regulators of metastatic dormancy, metastatic progression, and the role of putative cancer stem cells.
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Affiliation(s)
- John E. Phay
- Division of Surgical Oncology, Department of Surgery, The Ohio State University College of Medicine; Arthur G. James Comprehensive Cancer Center and Richard G. Solove Research Institute, Columbus, OH 43210
| | - Matthew D. Ringel
- Division of Endocrinology, Diabetes, and Metabolism, Department of Internal Medicine, The Ohio State University College of Medicine; Arthur G. James Comprehensive Cancer Center and Richard G. Solove Research Institute, Columbus, OH 43210
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23
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Horch RE, Boos AM, Quan Y, Bleiziffer O, Detsch R, Boccaccini AR, Alexiou C, Sun J, Beier JP, Arkudas A. Cancer research by means of tissue engineering--is there a rationale? J Cell Mol Med 2013; 17:1197-206. [PMID: 24118692 PMCID: PMC4159017 DOI: 10.1111/jcmm.12130] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 08/14/2013] [Indexed: 12/13/2022] Open
Abstract
Tissue engineering (TE) has evoked new hopes for the cure of organ failure and tissue loss by creating functional substitutes in the laboratory. Besides various innovations in the context of Regenerative Medicine (RM), TE also provided new technology platforms to study mechanisms of angiogenesis and tumour cell growth as well as potentially tumour cell spreading in cancer research. Recent advances in stem cell technology--including embryonic and adult stem cells and induced pluripotent stem cells--clearly show the need to better understand all relevant mechanisms to control cell growth when such techniques will be administered to patients. Such TE-Cancer research models allow us to investigate the interactions that occur when replicating physiological and pathological conditions during the initial phases of replication, morphogenesis, differentiation and growth under variable given conditions. Tissue microenvironment has been extensively studied in many areas of TE and it plays a crucial role in cell signalling and regulation of normal and malignant cell functions. This article is intended to give an overview on some of the most recent developments and possible applications of TE and RM methods with regard to the improvement of cancer research with TE platforms. The synthesis of TE with innovative methods of molecular biology and stem-cell technology may help investigate and potentially modulate principal phenomena of tumour growth and spreading, as well as tumour-related angiogenesis. In the future, these models have the potential to investigate the optimal materials, culture conditions and material structure to propagate tumour growth.
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Affiliation(s)
- Raymund E Horch
- Department of Plastic and Hand Surgery and Laboratory for Tissue Engineering and Regenerative Medicine, University Hospital Erlangen, Friedrich Alexander University (FAU) Erlangen-Nuremberg, Erlangen, Germany; Emerging Fields Initiative, FAU Erlangen-Nuremberg, Erlangen, Germany
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24
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Chai L, Qiao Z, Wang J, Liu M, Wang Y, Wang X, He M, Li W, Yu Q, Han Y, Ren S. Optimization and establishment of RNA interference-mediated knockdown of the progestagen-associated endometrial protein gene in human metastatic melanoma cell lines. Mol Med Rep 2013; 8:1390-6. [PMID: 24042729 DOI: 10.3892/mmr.2013.1679] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2013] [Accepted: 08/13/2013] [Indexed: 11/06/2022] Open
Abstract
Progestagen‑associated endometrial protein (PAEP), also termed glycodelin, is a 28‑kDa glycoprotein of the lipocalin superfamily that is expressed in a variety of tumors, including gynecological tumors, lung cancer and melanoma. To determine the biological functions of the PAEP gene in tumor development and progression, the production of transient and stable PAEP knockdown cell models is required. In the present study, RNA interference technology was used to silence PAEP gene expression in melanoma and transfection was screened for and the conditions were optimized using fluorescence microscopy, flow cytometry, qPCR and western blot analysis. The results of the present study showed that the transient transfection of melanoma cells with 100 nmol/l PAEP siRNA or lentiviral PAEP small hairpin RNA (shRNA) [multiplicity of infection (MOI), 100 pfu/cell] efficiently knocked down target gene expression. To establish stable PAEP knockdown cell lines, melanoma cells were infected with a low MOI (10 pfu/cell) of lentiviral particles expressing PAEP shRNA. Following puromycin screening, the PAEP gene knockdown efficiency was demonstrated to be >80% in 624‑Mel and 624.38‑Mel cell lines, which was validated by western blot analysis. Therefore, melanoma cell lines with stable knockdown of PAEP were successfully established and may be used as effective cell models to study the biological functions of the PAEP gene in melanoma.
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Affiliation(s)
- Lina Chai
- Beijing Institute of Transfusion Medicine, Beijing 100850, P.R. China
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25
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Chimonidou M, Kallergi G, Georgoulias V, Welch DR, Lianidou ES. Breast cancer metastasis suppressor-1 promoter methylation in primary breast tumors and corresponding circulating tumor cells. Mol Cancer Res 2013; 11:1248-57. [PMID: 23744981 DOI: 10.1158/1541-7786.mcr-13-0096] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
UNLABELLED Breast cancer metastasis suppressor-1 (BRMS1) differentially regulates the expression of multiple genes, leading to metastasis suppression without affecting orthotopic tumor growth. For the first time, BRMS1 promoter methylation was evaluated as a prognostic biomarker in primary breast tumors and a subset of corresponding circulating tumor cells (CTC). Formalin-fixed paraffin embedded samples were analyzed for BRMS1 methylation status using methylation-specific PCR in a human specimen cohort consisting of noncancerous tissues, benign fibroadenomas, and primary breast tumors, including some with adjacent noncancerous tissues. Peripheral blood mononuclear cells from a large subset of these patients were fixed in cytospins and analyzed. In addition, BRMS1 expression in cytospins was examined by double-immunofluorescence using anti-BRMS1 and pan-cytokeratin antibodies. BRMS1 promoter methylation was not detected in noncancerous breast tissues or benign fibroadenomas; however, methylation was observed in more than a third of primary breast tumors. Critically, BRMS1 promoter methylation in primary tumors was significantly associated with reduced disease-free survival with a trend toward reduced overall survival. Similarly, a third of cytospin samples were positive for the presence of CTCs, and the total number of detected CTCs was 41. Although a large fraction of CTCs were negative or maintained low expression of BRSM1, promoter methylation was observed in a small fraction of samples, implying that BRSM1 expression in CTCs was either downregulated or heterogeneous. In summary, these data define BRMS1 promoter methylation in primary breast tumors and associated CTCs. IMPLICATIONS This study indicates that BRSM1 promoter methylation status has biomarker potential in breast cancer.
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Affiliation(s)
- Maria Chimonidou
- Laboratory of Analytical Chemistry, Department of Chemistry, University of Athens, Athens 15771, Greece.
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26
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Wu J, Wang Y, Qiao X, Saiyin H, Zhao S, Qiao S, Wu Y. Cloning and characterization of a novel human BRMS1 transcript variant in hepatocellular carcinoma cells. Cancer Lett 2013; 337:266-75. [PMID: 23643861 DOI: 10.1016/j.canlet.2013.04.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 04/19/2013] [Accepted: 04/26/2013] [Indexed: 12/22/2022]
Abstract
Breast cancer metastasis suppressor 1 (BRMS1) is able to suppress tumor metastasis without affecting primary tumor growth in various cancers. Here, we report a novel transcript variant of human BRMS1, termed BRMS1.vh. BRMS1.vh is identical to the major BRMS1 variant (BRMS1.v1) except for missing base pairs 683-775, encoding a 215-amino acid protein lacking a functional nuclear localization sequence. Expression of BRMS1.vh in hepatocellular carcinoma (HCC) cells suppressed NF-κB signaling pathway, sensitized cells to apoptotic stimuli, leading to suppressed tumor growth. Taken together, our results suggest a potential role for BRMS1.vh in regulating cell apoptosis and tumor growth in HCC.
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Affiliation(s)
- Jun Wu
- State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, PR China
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