101
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Alaseem A, Alhazzani K, Dondapati P, Alobid S, Bishayee A, Rathinavelu A. Matrix Metalloproteinases: A challenging paradigm of cancer management. Semin Cancer Biol 2017; 56:100-115. [PMID: 29155240 DOI: 10.1016/j.semcancer.2017.11.008] [Citation(s) in RCA: 153] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Revised: 11/15/2017] [Accepted: 11/15/2017] [Indexed: 12/11/2022]
Abstract
Matrix metalloproteinases (MMPs) are members of zinc-dependent endopeptidases implicated in a variety of physiological and pathological processes. Over the decades, MMPs have been studied for their role in cancer progression, migration, and metastasis. As a result, accumulated evidence of MMPs incriminating role has made them an attractive therapeutic target. Early generations of broad-spectrum MMP inhibitors exhibited potent inhibitory activities, which subsequently led to clinical trials. Unexpectedly, these trials failed to meet the desired goals, mainly due to the lack of efficacy, poor oral bioavailability, and toxicity. In this review, we discuss the regulatory role of MMPs in cancer progression, current strategies in targeting MMPs for cancer treatment including prodrug design and tumor imaging, and therapeutic value of MMPs as biomarkers in breast, lung, and prostate cancers.
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Affiliation(s)
- Ali Alaseem
- Rumbaugh-Goodwin Institute for Cancer Research, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; College of Medicine, Al Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
| | - Khalid Alhazzani
- Rumbaugh-Goodwin Institute for Cancer Research, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Priya Dondapati
- Rumbaugh-Goodwin Institute for Cancer Research, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA
| | - Saad Alobid
- Rumbaugh-Goodwin Institute for Cancer Research, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA; College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Anupam Bishayee
- Lake Erie College of Osteopathic Medicine, Bradenton, FL 34211, USA
| | - Appu Rathinavelu
- Rumbaugh-Goodwin Institute for Cancer Research, Nova Southeastern University, Fort Lauderdale, FL 33314, USA; College of Pharmacy, Nova Southeastern University, Fort Lauderdale, FL 33328, USA.
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102
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Raman V, Fuentes Lorenzo JL, Stashenko EE, Levy M, Levy MM, Camarillo IG. Lippia origanoides extract induces cell cycle arrest and apoptosis and suppresses NF-κB signaling in triple-negative breast cancer cells. Int J Oncol 2017; 51:1801-1808. [PMID: 29075784 PMCID: PMC5673024 DOI: 10.3892/ijo.2017.4169] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 09/27/2017] [Indexed: 02/07/2023] Open
Abstract
Treatments targeting hormone receptors typically fail to provide a positive clinical outcome against triple-negative breast cancers (TNBC), which lack expression of estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (Her2/neu). Towards identifying viable treatments for aggressive breast cancer, we have tested an extract of the tropical plant Lippia origanoides (LOE) on TNBC and normal cells lines to uncover its potential anticancer effects. Treatment with LOE reduced TNBC cell viability in a dose-dependent manner to a greater extent than in normal mammary epithelial MCF10A cells. In MDA-MB-231 cells, LOE was found to halt the cell cycle in the G0/G1 phase via cyclin D1 and cIAP2 regulation, and induce apoptosis without promoting necrosis via caspase-8/-3 and PARP cleavage. Constitutive nuclear factor-κB (NF-κB) signaling has been shown to contribute to the heightened inflammatory state and survival in TNBC cells. Herein, we also provide evidence that LOE inhibits NF-κB signaling by reducing RIP1 protein levels in MDA-MB-231 cells. These studies reveal that LOE suppresses key features of the progression of aggressive breast cancer cells and provides a basis for further definition of its underlying mechanisms of action and anticancer potential.
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Affiliation(s)
- Vishak Raman
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
| | - Jorge Luis Fuentes Lorenzo
- Microbiology and Environmental Mutagenesis Laboratory, School of Biology, Industrial University of Santander, Bucaramanga, Colombia
| | - Elena E Stashenko
- Research Center for Biomolecules (CIBIMOL), Research Center of Excellence (CENIVAM), Industrial University of Santander, Bucaramanga, Colombia
| | - Morris Levy
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
| | - Maria M Levy
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
| | - Ignacio G Camarillo
- Department of Biological Sciences, Purdue University, West Lafayette, IN, USA
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103
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Pan S, Cai H, Gu L, Cao S. Cleistanthin A inhibits the invasion and metastasis of human melanoma cells by inhibiting the expression of matrix metallopeptidase-2 and -9. Oncol Lett 2017; 14:6217-6223. [PMID: 29113270 DOI: 10.3892/ol.2017.6917] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 07/07/2017] [Indexed: 01/01/2023] Open
Abstract
It has been demonstrated that numerous types of metastatic cancer overexpress vacuolar-type H+ (V)-ATPases. It may be possible to inhibit the growth and metastasis of human cancer cells by inhibiting V-ATPases. It was previously reported that diphyllin, a novel V-ATPase inhibitor, can inhibit the migration and invasion of SGC7901 human gastric cancer cells; however, the effects of cleistanthin A (CA), a diphyllin glycoside, on melanoma cells has not been demonstrated. The present study aimed to investigate the effect of CA as a V-ATPase inhibitor and its effects on the invasion and metastasis of A375 cells. The results of an MTT assay in the present study indicated that the growth inhibition of A375 cells by CA was induced in a dose- and time-dependent manner; however, A375 cell viability was not significantly affected by low concentrations (0.03, 0.1 and 0.3 µM) after 24 h. Similar results were obtained by viable cell counting with trypan blue. Therefore, these concentrations of CA were selected for the treatment of A375 cells in further experiments. It was demonstrated that CA inhibited the expression of V-ATPases in a dose-dependent manner and decreased the internal pH level of A375 cells. Alterations to the lysosomal pH were associated with the CA concentration. Furthermore, CA treatment induced a significant decrease in cell migration and invasion, as demonstrated with wound-healing and Transwell assays. Gelatin zymography and western blot analysis demonstrated that the expression levels of matrix metallopeptidase (MMP)-2 and -9 decreased following CA treatment. Therefore, CA can be characterized as a novel V-ATPase inhibitor for the treatment of melanoma that may inhibit invasion and metastasis by downregulating the expression of MMP-2 and -9.
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Affiliation(s)
- Sheng Pan
- Department of Dermatology and Venereology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China.,Institute of Nautical Medicine, Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Hengji Cai
- Department of Dermatology and Venereology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Lixiong Gu
- Department of Dermatology and Venereology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Shuanglin Cao
- Department of Dermatology and Venereology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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104
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Radisky ES, Raeeszadeh-Sarmazdeh M, Radisky DC. Therapeutic Potential of Matrix Metalloproteinase Inhibition in Breast Cancer. J Cell Biochem 2017; 118:3531-3548. [PMID: 28585723 PMCID: PMC5621753 DOI: 10.1002/jcb.26185] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 06/05/2017] [Indexed: 12/14/2022]
Abstract
Matrix metalloproteinases (MMPs) are a family of zinc endopeptidases that cleave nearly all components of the extracellular matrix as well as many other soluble and cell-associated proteins. MMPs have been implicated in normal physiological processes, including development, and in the acquisition and progression of the malignant phenotype. Disappointing results from a series of clinical trials testing small molecule, broad spectrum MMP inhibitors as cancer therapeutics led to a re-evaluation of how MMPs function in the tumor microenvironment, and ongoing research continues to reveal that these proteins play complex roles in cancer development and progression. It is now clear that effective targeting of MMPs for therapeutic benefit will require selective inhibition of specific MMPs. Here, we provide an overview of the MMP family and its biological regulators, the tissue inhibitors of metalloproteinases (TIMPs). We then summarize recent research from model systems that elucidate how specific MMPs drive the malignant phenotype of breast cancer cells, including acquisition of cancer stem cell features and induction of the epithelial-mesenchymal transition, and we also outline clinical studies that implicate specific MMPs in breast cancer outcomes. We conclude by discussing ongoing strategies for development of inhibitors with therapeutic potential that are capable of selectively targeting the MMPs most responsible for tumor promotion, with special consideration of the potential of biologics including antibodies and engineered proteins based on the TIMP scaffold. J. Cell. Biochem. 118: 3531-3548, 2017. © 2017 The Authors. Journal of Cellular Biochemistry Published by Wiley Periodicals, Inc.
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Affiliation(s)
- Evette S Radisky
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville 32224, Florida
| | | | - Derek C Radisky
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville 32224, Florida
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105
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Yousef EM, Furrer D, Laperriere DL, Tahir MR, Mader S, Diorio C, Gaboury LA. MCM2: An alternative to Ki-67 for measuring breast cancer cell proliferation. Mod Pathol 2017; 30:682-697. [PMID: 28084344 DOI: 10.1038/modpathol.2016.231] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 11/28/2016] [Accepted: 11/29/2016] [Indexed: 11/10/2022]
Abstract
Breast cancer is a heterogeneous disease comprising a diversity of tumor subtypes that manifest themselves in a wide variety of clinical, pathological, and molecular features. One important subset, luminal breast cancers, comprises two clinically distinct subtypes luminal A and B each of them endowed with its own genetic program of differentiation and proliferation. Luminal breast cancers were operationally defined as follows: Luminal A: ER+, PR+, HER2-, Ki-67<14% and Luminal B: ER+ and/or PR+, HER2-,Ki-67≥14% or, alternatively ER+ and/or PR+, HER2+, any Ki-67. There is currently a need for a clinically robust and validated immunohistochemical assay that can help distinguish between luminal A and B breast cancer. MCM2 is a family member of the minichromosome maintenance protein complex whose role in DNA replication and cell proliferation is firmly established. As MCM2 appears to be an attractive alternative to Ki-67, we sought to study the expression of MCM2 and Ki-67 in different histological grades and molecular subtypes of breast cancer focusing primarily on ER-positive tumors. MCM2 and Ki-67 mRNA expression were studied using in silico analysis of available DNA microarray and RNA-sequencing data of human breast cancer. We next used immunohistochemistry to evaluate protein expression of MCM2 and Ki-67 on tissue microarrays of invasive breast carcinoma. We found that MCM2 and Ki-67 are highly expressed in breast tumors of high histological grades, comprising clinically aggressive tumors such as triple-negative, HER2-positive and luminal B subtypes. MCM2 expression was detected at higher levels than that of Ki-67 in normal breast tissues and in breast cancers. The bimodal distribution of MCM2 scores in ER+/HER2- breast tumors led to the identification of two distinct subgroups with different relapse-free survival rates. In conclusion, MCM2 expression can help sorting out two clinically important subsets of luminal breast cancer whose treatment and clinical outcomes are likely to diverge.
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Affiliation(s)
- Einas M Yousef
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada.,Department of Histology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Daniela Furrer
- Cancer Research Centre at Laval University, Quebec City, QC, Canada.,Oncology Axis, CHU of Quebec Research Center, Hôpital du Saint-Sacrement, Quebec City, QC, Canada.,Department of Social and Preventive Medicine, Faculty of Medicine, Laval University, Quebec City, QC, Canada
| | - David L Laperriere
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada
| | - Muhammad R Tahir
- The University of Montreal Hospital Research Centre, Montreal, QC, Canada
| | - Sylvie Mader
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada.,Department of Biochemistry, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
| | - Caroline Diorio
- Cancer Research Centre at Laval University, Quebec City, QC, Canada.,Oncology Axis, CHU of Quebec Research Center, Hôpital du Saint-Sacrement, Quebec City, QC, Canada.,Department of Social and Preventive Medicine, Faculty of Medicine, Laval University, Quebec City, QC, Canada.,Deschênes-Fabia Center for Breast Diseases, Hôpital du St-Sacrement, Quebec City, QC, Canada
| | - Louis A Gaboury
- Institute for Research in Immunology and Cancer, University of Montreal, Montreal, QC, Canada.,Department of Pathology and Cell Biology, Faculty of Medicine, University of Montreal, Montreal, QC, Canada
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106
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Silencing CAPN2 Expression Inhibited Castration-Resistant Prostate Cancer Cells Proliferation and Invasion via AKT/mTOR Signal Pathway. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2593674. [PMID: 28280729 PMCID: PMC5322456 DOI: 10.1155/2017/2593674] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/08/2016] [Accepted: 01/04/2017] [Indexed: 12/29/2022]
Abstract
The mRNA expression of CAPN2 was upregulated in CRPC cells (DU145 and PC3) than that in non-CRPC cells. Silencing CAPN2 expression could inhibit DU145 and PC3 cells proliferation by cell cycle arrest at G1 phase. Knockdown of CPAN2 level suppressed the migration and invasion capacity of CRPC cells by reducing matrix metalloproteinase-2 (MMP-2) and MMP-9 activation, as well as repressing the phosphorylation protein expression of AKT and mTOR. In addition, we found that the expression of CAPN2 was elevated in Pca tissues than that in normal control tissues. Therefore, we showed the important roles of CAPN2 in the development and progression in CRPC cells, suggesting a new therapeutic intervention for treating castration-resistant prostate cancer patients.
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107
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Huang YF, Chiu WC, Chou SH, Su YH, Chen YW, Chai CY, Huang CJ, Huang MY, Yuan SSF, Lee YC. Association of MMP-2 and MMP-9 expression with recurrences in primary spontaneous pneumothorax. Kaohsiung J Med Sci 2017; 33:17-23. [PMID: 28088269 DOI: 10.1016/j.kjms.2016.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/03/2016] [Accepted: 10/13/2016] [Indexed: 01/22/2023] Open
Abstract
Primary spontaneous pneumothorax (PSP) is a common benign problem. However, PSP recurrence is still a troublesome complication for most patients. This study intended to determine the role of matrix metalloproteinase-2 (MMP-2) and MMP-9 in type II pneumocytes of patients with PSP and its relation with recurrence. Ninety-one patients who had undergone needlescopic video-assisted thoracoscopic surgery wedge resection of lung with identifiable blebs for PSP were included in this study. Immunohistochemical (IHC) staining was used to measure the expression of MMP-2 and MMP-9 in lung tissues of PSP patients. The results were further correlated with clinicopathological parameters and recurrence rates using chi-square or Fisher's exact test. The value of MMP-2 and MMP-9 for overall recurrence was analyzed by univariate and multivariable Cox regression model. IHC data revealed that MMP-2 and MMP-9 staining was predominantly observed in type II pneumocytes of patients with PSP. We found that MMP-2 and MMP-9 expression in PSP, especially male PSP patients, was significantly correlated with recurrence. In the univariate and multivariate analyses, MMP-2 and MMP-9 were statistically significant risk factors for overall recurrence in PSP patients. Therefore, high expression levels of MMP-2 and MMP-9 in type II pneumocytes show a positive correlation with PSP recurrence risk. Further studies are needed to validate whether reduction of MMP-2 and MMP-9 expression may be a promising way for decreasing the risk of PSP recurrence in the future.
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Affiliation(s)
- Ying-Fong Huang
- Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Chin Chiu
- Division of Thoracic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shah-Hwa Chou
- Division of Thoracic Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Han Su
- Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yu-Wen Chen
- Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chee-Yin Chai
- Department of Pathology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Jen Huang
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ming-Yii Huang
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Shyng-Shiou F Yuan
- Translational Research Center, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Chen Lee
- Department of Anatomy, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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108
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Yu T, Di G. Role of tumor microenvironment in triple-negative breast cancer and its prognostic significance. Chin J Cancer Res 2017; 29:237-252. [PMID: 28729775 PMCID: PMC5497211 DOI: 10.21147/j.issn.1000-9604.2017.03.10] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Breast cancer has been shown to live in the tumor microenvironment, which consists of not only breast cancer cells themselves but also a significant amount of pathophysiologically altered surrounding stroma and cells. Diverse components of the breast cancer microenvironment, such as suppressive immune cells, re-programmed fibroblast cells, altered extracellular matrix (ECM) and certain soluble factors, synergistically impede an effective anti-tumor response and promote breast cancer progression and metastasis. Among these components, stromal cells in the breast cancer microenvironment are characterized by molecular alterations and aberrant signaling pathways, whereas the ECM features biochemical and biomechanical changes. However, triple-negative breast cancer (TNBC), the most aggressive subtype of this disease that lacks effective therapies available for other subtypes, is considered to feature a unique microenvironment distinct from that of other subtypes, especially compared to Luminal A subtype. Because these changes are now considered to significantly impact breast cancer development and progression, these unique alterations may serve as promising prognostic factors of clinical outcome or potential therapeutic targets for the treatment of TNBC. In this review, we focus on the composition of the TNBC microenvironment, concomitant distinct biological alteration, specific interplay between various cell types and TNBC cells, and the prognostic implications of these findings.
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Affiliation(s)
- Tianjian Yu
- Department of Breast Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Genhong Di
- Department of Breast Surgery, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
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109
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AbdRaboh NR, Bayoumi FA. Gene polymorphism of matrix metalloproteinases 3 and 9 in breast cancer. GENE REPORTS 2016. [DOI: 10.1016/j.genrep.2016.10.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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110
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Gan L, Qiu Z, Huang J, Li Y, Huang H, Xiang T, Wan J, Hui T, Lin Y, Li H, Ren G. Cyclooxygenase-2 in tumor-associated macrophages promotes metastatic potential of breast cancer cells through Akt pathway. Int J Biol Sci 2016; 12:1533-1543. [PMID: 27994517 PMCID: PMC5166494 DOI: 10.7150/ijbs.15943] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 10/09/2016] [Indexed: 12/18/2022] Open
Abstract
Tumor-associated macrophages (TAMs) promote cancer development and progression by releasing various cytokines and chemokines. Previously, we have found that the number of COX-2+ TAMs was associated with lymph node metastasis in breast cancer. However, the mechanism remains enigmatic. In this study, we show that COX-2 in breast TAMs enhances the metastatic potential of breast cancer cells. COX-2 in TAMs induces MMP-9 expression and promotes epithelial-mesenchymal transition (EMT) in breast cancer cells. In addition, COX-2/PGE2 induces IL-6 release in macrophages. Furthermore, we find that the activation of Akt pathway in cancer cells is crucial for the pro-metastatic effect of COX-2+ TAMs by regulating MMP-9 and EMT. These findings indicate that TAMs facilitate breast cancer cell metastasis through COX-2-mediated intercellular communication.
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Affiliation(s)
- Lu Gan
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Oncology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Zhu Qiu
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Huang
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yunhai Li
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongyan Huang
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Tingxiu Xiang
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jingyuan Wan
- Department of Pharmacology, Chongqing Medical University, Chongqing, China
| | - Tianli Hui
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yong Lin
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Hongzhong Li
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Guosheng Ren
- Chongqing Key Laboratory of Molecular Oncology and Epigenetics, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
- Department of Endocrine and Breast Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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111
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Higgins MJ, Serrano A, Boateng KY, Parsons VA, Phuong T, Seifert A, Ricca JM, Tucker KC, Eidelman AS, Carey MA, Kurt RA. A Multifaceted Role for Myd88-Dependent Signaling in Progression of Murine Mammary Carcinoma. BREAST CANCER-BASIC AND CLINICAL RESEARCH 2016; 10:157-167. [PMID: 27812285 PMCID: PMC5084708 DOI: 10.4137/bcbcr.s40075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 07/10/2016] [Accepted: 07/12/2016] [Indexed: 02/06/2023]
Abstract
Previous data obtained in our laboratory suggested that there may be constitutive signaling through the myeloid differentiation primary response gene 88 (Myd88)-dependent signaling cascade in murine mammary carcinoma. Here, we extended these findings by showing that, in the absence of an added Toll-like receptor (TLR) agonist, the myddosome complex was preformed in 4T1 tumor cells, and that Myd88 influenced cytoplasmic extracellular signal–regulated kinase (Erk)1/Erk2 levels, nuclear levels of nuclear factor-kappaB (NFκB) and signal transducer and activator of transcription 5 (STAT5), tumor-derived chemokine (C–C motif) ligand 2 (CCL2) expression, and in vitro and in vivo tumor growth. In addition, RNA-sequencing revealed that Myd88-dependent signaling enhanced the expression of genes that could contribute to breast cancer progression and genes previously associated with poor outcome for patients with breast cancer, in addition to suppressing the expression of genes capable of inhibiting breast cancer progression. Yet, Myd88-dependent signaling in tumor cells also suppressed expression of genes that could contribute to tumor progression. Collectively, these data revealed a multifaceted role for Myd88-dependent signaling in murine mammary carcinoma.
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Affiliation(s)
- Mary J Higgins
- Department of Biology, Lafayette College, Easton, PA, USA
| | | | - Kofi Y Boateng
- Department of Biology, Lafayette College, Easton, PA, USA
| | | | - Tiffany Phuong
- Department of Biology, Lafayette College, Easton, PA, USA
| | - Alyssa Seifert
- Department of Biology, Lafayette College, Easton, PA, USA
| | - Jacob M Ricca
- Department of Biology, Lafayette College, Easton, PA, USA
| | - Kyle C Tucker
- Department of Biology, Lafayette College, Easton, PA, USA
| | | | | | - Robert A Kurt
- Department of Biology, Lafayette College, Easton, PA, USA
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112
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Liu Y, Lv H, Wu X, Zhou J, Shi Y, Wen J. Demethylation of Repressor Element-1 Silencing Transcription (REST) Suppresses the Malignant Phenotype of Breast Cancer via MMP9. Oncol Res 2016; 25:445-454. [PMID: 27697091 PMCID: PMC7841195 DOI: 10.3727/096504016x14747368729786] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Breast cancer is the leading cause of cancer deaths in females all over the world, mainly resulting from metastasis. Previous studies have revealed that repressor element-1 (RE-1) silencing transcription (REST) acted as a tumor suppressor in breast cancer. However, the mechanism by which REST is regulated remains unknown, and its role in the metastasis in breast cancer cells remains unclear. In the present study, we showed that the expression of REST was lower in breast cancer samples than that of adjacent samples by immunohistochemical analysis, which may be due to hypermethylation of the REST promoter. Low REST levels are significantly associated with malignant progression in breast cancer patients. Additionally, we elucidated the functions of REST on proliferation and invasion in breast cancer cells. Lentivirus transfection was used to overexpress REST in human breast MDA-MB-231 cells. Then the biologic consequences of overexpressing REST in regard to cell proliferation, apoptosis, and invasion were determined. Furthermore, we also determined matrix metalloproteinase-9 (MMP9) as a target of REST. These results demonstrate that downregulation of REST, a tumor suppressor in breast cancer, is associated with hypermethylation. Induced REST expression is capable of attenuating invasion ability of breast cancer cells, which may be a novel strategy for metastatic breast cancer treatment.
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113
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Selitrennik M, Lev S. PYK2 integrates growth factor and cytokine receptors signaling and potentiates breast cancer invasion via a positive feedback loop. Oncotarget 2016; 6:22214-26. [PMID: 26084289 PMCID: PMC4673158 DOI: 10.18632/oncotarget.4257] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2015] [Accepted: 05/29/2015] [Indexed: 12/27/2022] Open
Abstract
The involvement of ErbB family members in breast cancer progression and metastasis has been demonstrated by many studies. However, the downstream effectors that mediate their migratory and invasive responses have not been fully explored. In this study, we show that the non-receptor tyrosine kinase PYK2 is a key effector of EGFR and HER2 signaling in human breast carcinoma. We found that PYK2 is activated by both EGF and heregulin (HRG) in breast cancer cells, and positively regulates EGF/HRG-induced cell spreading, migration and invasion. PYK2 depletion markedly affects ERK1/2 and STAT3 phosphorylation in response to EGF/HRG as well as to IL8 treatment. Importantly, PYK2 depletion also reduced EGF/HRG-induced MMP9 and IL8 transcription, while IL8 inhibition abrogated EGF-induced MMP9 transcription and attenuated cell invasion. IL8, which is transcriptionally regulated by STAT3 and induces PYK2 activation, prolonged EGF-induced PYK2, STAT3 and ERK1/2 phosphorylation suggesting that IL8 acts through an autocrine loop to reinforce EGF-induced signals. Collectively our studies suggest that PYK2 is a common downstream effector of ErbB and IL8 receptors, and that PYK2 integrates their signaling pathways through a positive feedback loop to potentiate breast cancer invasion. Hence, PYK2 could be a potential therapeutic target for a subset of breast cancer patients.
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Affiliation(s)
- Michael Selitrennik
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot, Israel
| | - Sima Lev
- Molecular Cell Biology Department, Weizmann Institute of Science, Rehovot, Israel
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114
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Gallic acid-capped gold nanoparticles inhibit EGF-induced MMP-9 expression through suppression of p300 stabilization and NFκB/c-Jun activation in breast cancer MDA-MB-231 cells. Toxicol Appl Pharmacol 2016; 310:98-107. [PMID: 27634460 DOI: 10.1016/j.taap.2016.09.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/08/2016] [Accepted: 09/11/2016] [Indexed: 01/10/2023]
Abstract
Triple-negative breast cancers (TNBCs) are highly invasive and have a higher rate of distant metastasis. Matrix metalloproteinase-9 (MMP-9) plays a crucial role in EGF/EGFR-mediated malignant progression and metastasis of TNBCs. Various studies have revealed that treatment with gallic acid down-regulates MMP-9 expression in cancer cells, and that conjugation of phytochemical compounds with gold nanoparticles (AuNPs) increases the anti-tumor activity of the phytochemical compounds. Thus, the effect of gallic acid-capped AuNPs (GA-AuNPs) on MMP-9 expression in EGF-treated TNBC MDA-MB-231 cells was analyzed in the present study. The so-called green synthesis of AuNPs by means of gallic acid was performed at pH10, and the resulting GA-AuNPs had spherical shape with an average diameter of approximately 50nm. GA-AuNPs notably suppressed migration and invasion of EGF-treated cells, and inhibited EGF-induced MMP-9 up-regulation. GA-AuNPs abrogated EGF-induced Akt/p65 and ERK/c-Jun phosphorylation, leading to down-regulation of MMP-9 mRNA and protein expression in EGF-treated cells. Meanwhile, EGF-induced p300 stabilization was found to be involved in MMP-9 expression, whereas GA-AuNPs inhibited the EGF-promoted stability of the p300 protein. Although GA-AuNPs and gallic acid suppressed EGF-induced MMP-9 up-regulation via the same signaling pathway, the effective concentration of gallic acid was approximately 100-fold higher than that of GA-AuNPs for inhibition of MMP-9 expression in EGF-treated cells to a similar extent. Collectively, our data indicate that, in comparison with gallic acid, GA-AuNPs have a superior ability to inhibit EGF/EGFR-mediated MMP-9 expression in TNBC MDA-MB-231 cells. Our findings also point to a way to improve the anti-tumor activity of gallic acid.
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115
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Girotra S, Yeghiazaryan K, Golubnitschaja O. Potential biomarker panels in overall breast cancer management: advancements by multilevel diagnostics. Per Med 2016; 13:469-484. [PMID: 29767597 DOI: 10.2217/pme-2016-0020] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Breast cancer (BC) prevalence has reached an epidemic scale with half a million deaths annually. Current deficits in BC management include predictive and preventive approaches, optimized screening programs, individualized patient profiling, highly sensitive detection technologies for more precise diagnostics and therapy monitoring, individualized prediction and effective treatment of BC metastatic disease. To advance BC management, paradigm shift from delayed to predictive, preventive and personalized medical services is essential. Corresponding step forwards requires innovative multilevel diagnostics procuring specific panels of validated biomarkers. Here, we discuss current instrumental advancements including genomics, proteomics, epigenetics, miRNA, metabolomics, circulating tumor cells and cancer stem cells with a focus on biomarker discovery and multilevel diagnostic panels. A list of the recommended biomarker candidates is provided.
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116
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Yu Y, Ding Z, Jian H, Shen L, Zhu L, Lu S. Prognostic value of MMP9 activity level in resected stage I B lung adenocarcinoma. Cancer Med 2016; 5:2323-31. [PMID: 27456862 PMCID: PMC5055171 DOI: 10.1002/cam4.821] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 06/17/2016] [Accepted: 06/17/2016] [Indexed: 12/12/2022] Open
Abstract
The clinical outcomes of patients with early-stage non-small cell lung cancer (NSCLC) have remained unsatisfactory after complete surgical resection. The objective of this study was to explore the prognostic value of matrix metalloproteinase 9 (MMP9) activity level in Chinese patients with stage I B lung adenocarcinoma. A sensitive and validated method was employed for determining the activity of MMP9 in human lung adenocarcinoma cells in vitro. Then, the association was examined between the level of MMP9 enzymatic activity and clinical outcomes. A total of 104 cases were stratified according to the IASLC/ATS/ERS classification scheme and activity of MMP9 was analyzed by SensoLyte® assay kit. The results showed that the MMP9 activity was the highest in solid predominant and micropapillary predominant subtypes, intermediate in acinar predominant and papillary predominant subtypes, and the lowest in lepidic predominant subtype. Multivariate analysis revealed that pathological subtype and activity of MMP9 were independent prognostic factors for disease-free survival (DFS), respectively (P = 0.005 and 0.029). Significant relationship existed between enzyme activity of MMP9 and prognosis. And the 30 months DFS of high- and low-level MMP9 activity tumors was 44.2% and 84.1% (P < 0.0001), respectively. High-level MMP9 activity is correlated with aggressive tumor behaviors and poor clinical outcomes in early-stage lung adenocarcinoma after complete resection.
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Affiliation(s)
- Yongfeng Yu
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Zhengping Ding
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Hong Jian
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Lan Shen
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Lei Zhu
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China
| | - Shun Lu
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, 241 West Huaihai Road, Xuhui District, Shanghai, 200030, China.
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117
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Liu Y, Su C, Shan Y, Yang S, Ma G. Targeting Notch1 inhibits invasion and angiogenesis of human breast cancer cells via inhibition Nuclear Factor-κB signaling. Am J Transl Res 2016; 8:2681-2692. [PMID: 27398151 PMCID: PMC4931162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 06/02/2016] [Indexed: 06/06/2023]
Abstract
Notch-1, a type-1 transmembrane protein, plays critical roles in the pathogenesis and progression of human malignancies, including breast cancer; however, the precise mechanism by which Notch-1 causes tumor cell invasion and angiogenesis remain unclear. Nuclear factor-κB (NF-κB), interleukin-8 (IL-8), vascular endothelial growth factor (VEGF), and matrix metalloproteinases (MMP) are critically involved in the processes of tumor cell invasion and metastasis, we investigated whether targeting Notch-1 could be mechanistically associated with the down-regulation of NF-κB, IL-8, VEGF, and MMP-9, resulting in the inhibition of invasion and angiogenesis of breast cancer cells. Our data showed that down-regulation of Notch-1 leads to the inactivation of NF-κB activity and inhibits the expression of its target genes, such as IL-8, VEGF and MMP-9. We also found that down-regulation of Notch-1 decreased cell invasion, and vice versa Consistent with these results, we also found that the down-regulation of Notch-1 not only decreased MMP-9 mRNA and its protein expression but also inhibited MMP-9 active form. Moreover, conditioned medium from Notch-1 siRNA-transfected breast cancer cells showed reduced levels of IL-8 and VEGF and, in turn, inhibited the tube formation of HUVECs, suggesting that down-regulation of Notch-1 leads to the inhibition of angiogenesis. Furthermore, conditioned medium from Notch-1 cDNA-transfected breast cancer cells showed increased levels of IL-8 and VEGF and, in turn, promoted the tube formation of HUVECs, suggesting that Notch-1 overexpression leads to the promotion of angiogenesis.We therefore concluded that down-regulation of Notch-1 leads to the inactivation NF-κB and its target genes (IL-8, MMP-9 and VEGF), resulting in the inhibition of invasion and angiogenesis.
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Affiliation(s)
- Yuan Liu
- Department of Radiation Therapy, Linyi Tumor Hospital Linyi, Shandong, China
| | - Chuanfu Su
- Department of Breast Surgery, Linyi Tumor Hospital Linyi, Shandong, China
| | - Yuqing Shan
- Department of Imaging, People's Hospital of Rizhao Rizhao, Shandong, China
| | - Shouxiang Yang
- Department of Imaging, People's Hospital of Rizhao Rizhao, Shandong, China
| | - Guifeng Ma
- Department of Imaging, People's Hospital of Rizhao Rizhao, Shandong, China
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Chen YJ, Lin KN, Jhang LM, Huang CH, Lee YC, Chang LS. Gallic acid abolishes the EGFR/Src/Akt/Erk-mediated expression of matrix metalloproteinase-9 in MCF-7 breast cancer cells. Chem Biol Interact 2016; 252:131-40. [DOI: 10.1016/j.cbi.2016.04.025] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 03/27/2016] [Accepted: 04/13/2016] [Indexed: 11/26/2022]
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119
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Dilshara MG, Jayasooriya RGPT, Kang CH, Choi YH, Kim GY. Methanol extract of Codium fragile inhibits tumor necrosis factor-α-induced matrix metalloproteinase-9 and invasiveness of MDA-MB-231 cells by suppressing nuclear factor-κB activation. ASIAN PAC J TROP MED 2016; 9:535-41. [PMID: 27262063 DOI: 10.1016/j.apjtm.2016.04.010] [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: 02/15/2016] [Revised: 03/16/2016] [Accepted: 04/08/2016] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE To evaluate whether the methanol extract of Codium fragile (MECF) regulates tumor necrosis factor-α (TNF-α)-induced invasion of human breast cancer MDA-MB-231 cells by suppressing matrix metalloproteinase-9 (MMP-9). METHODS Reverse transcription-polymerase chain reaction (RT-PCR) and western blot analysis were performed to analyze the expression of MMP-9 and nuclear factor-κB (NF-κB) subunits, p65 and p50, and IκB in MDA-MB-231 cells. 3-(4,5-Dimethyl-2-thiazolyl)-2,5-diphenyl-2H-tetrazolium bromide (MTT) assay was used for cell viability. MMP-9 activity and invasion were measured by gelatin zymography and a matrigel invasion assay, respectively. NF-κB activity was measured by an electrophoretic mobility shift assay and luciferase activity. RESULTS MECF had no effect on cell viability up to a concentration of 100 μg/mL in human breast cancer MDA-MB-231 cells regardless of the presence of TNF-α. MDA-MB-231 cells that were stimulated with TNF-α showed a marked increase of invasion compared to the untreated control, whereas pretreatment with MECF downregulated the TNF-α-induced invasion of MDA-MB-231 cells. Additionally, zymography, western blot analysis, and RT-PCR confirmed that MECF decreased TNF-α-induced MMP-9 expression and activity which is a key regulator for cancer invasion. According to an electrophoretic morbidity shift assay, pretreatment with MECF in MDA-MB-231 cells significantly decreased the TNF-α-induced DNA-binding activity of NF-κB, which is an important transcription factor for regulating cancer invasion-related genes such as MMP-9. Furthermore, treatment with MECF sustained the expression of p65 and p50 in response to TNF-α in the cytosolic compartment. The luciferase assay demonstrated that MECF attenuated TNF-α-induced NF-κB luciferase activity. CONCLUSION MECF exhibited its anti-invasive capability by downregulating TNF-α-induced MMP-9 expression, resulting from the suppression of NF-κB activity in the human breast cancer cell line MDA-MB-231.
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Affiliation(s)
| | | | - Chang-Hee Kang
- Department of Marine Life Sciences, Jeju National University, Jeju-si 63243, Republic of Korea; Nakdonggang National Institute of Biological Resource, Sangju-si, Gyeongsangbuk-do 37242, Republic of Korea
| | - Yung-Hyun Choi
- Department of Biochemistry, College of Oriental Medicine, Dong-Eui University, Busan 47340, Republic of Korea
| | - Gi-Young Kim
- Department of Marine Life Sciences, Jeju National University, Jeju-si 63243, Republic of Korea.
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120
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Ławicki S, Zajkowska M, Głażewska EK, Będkowska GE, Szmitkowski M. Plasma levels and diagnostic utility of VEGF, MMP-9, and TIMP-1 in the diagnosis of patients with breast cancer. Onco Targets Ther 2016; 9:911-9. [PMID: 26966379 PMCID: PMC4771393 DOI: 10.2147/ott.s99959] [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] [Indexed: 11/23/2022] Open
Abstract
Vascular endothelial growth factor (VEGF), matrix metalloproteinase-9, and tissue inhibitor of metalloproteinase-1 may play a role in the pathogenesis of cancer disease. We investigated their levels and utility in comparison to cancer antigen (CA) 15-3 in patients with breast cancer (BC) and in relation to the control groups. The study included 100 women with BC, 50 patients with benign breast tumor, and 50 healthy women. The plasma levels of the tested parameters were determined using enzyme-linked immunosorbent assay, while CA 15-3 with chemiluminescent microparticle immunoassay. The results demonstrated significant differences in the concentration of the tested parameters and CA 15-3 between groups of patients with BC and healthy patients or patients with benign breast tumor. The plasma levels of VEGF and tissue inhibitor of metalloproteinase-1 were significantly higher in advanced tumor stages. The tested parameters were comparable to CA 15-3 values of the diagnostic sensitivity, specificity, the predictive values of positive and negative test results, and the area under the receiver-operating characteristic curve. The combined use of the tested parameters with CA 15-3 resulted in the increase in sensitivity, negative predictive value, and area under the receiver-operating characteristic curve, especially in the combination of VEGF with tumor marker (84%, 73%, 0.888, respectively). These findings suggest the usefulness of the tested parameters in the diagnosis of BC. VEGF, especially in combination with CA 15-3, showed the highest usefulness in the diagnosis of early BC.
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Affiliation(s)
- Sławomir Ławicki
- Department of Biochemical Diagnostics, Medical University of Bialystok, Bialystok, Poland
| | - Monika Zajkowska
- Department of Biochemical Diagnostics, Medical University of Bialystok, Bialystok, Poland
| | | | - Grażyna Ewa Będkowska
- Department of Hematological Diagnostics, Medical University of Bialystok, Bialystok, Poland
| | - Maciej Szmitkowski
- Department of Biochemical Diagnostics, Medical University of Bialystok, Bialystok, Poland
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121
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Ho YJ, Lin YM, Huang YC, Yeh KT, Lin LI, Lu JW. Tissue microarray-based study of hepatocellular carcinoma validating SPIB as potential clinical prognostic marker. Acta Histochem 2016; 118:38-45. [PMID: 26610895 DOI: 10.1016/j.acthis.2015.11.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 11/07/2015] [Accepted: 11/09/2015] [Indexed: 01/11/2023]
Abstract
Currently, the prognostic significance of SPIB protein overexpression in human hepatocellular carcinoma (HCC) is unclear. The aim of the present study was to investigate the level of SPIB expression in human HCC in order to determine possible correlations between SPIB expression and clinicopathological findings. The expression of SPIB proteins was detected using immunohistochemical staining in commercial multiple-tissue microarrays as a means of examining expression profiles in patients. Using online biomarker validation tool SurvExpress, we focused on the correlation between SPIB overexpression and survival as well as relapse-free survival (RFS). Results show that SPIB protein expression levels were significantly higher in colon, liver, and stomach tumors than in non-tumor tissues (p<0.05). SPIB overexpression in patients with HCC was also significantly higher than that of the normal samples (p<0.001). Among patients with liver disease, SPIB protein expression levels differ significantly according to the stage of liver disease, specifically between stages I, II, and III of HCC (p<0.05). SPIB expression was also shown to be significantly correlated with age (p=0.046) and histological grade (p=0.027). Furthermore, the SurvExpress analysis suggested that high SPIB and KI-67 mRNA expression were significantly associated with the poor survival of patients with HCC (p<0.05). Our results indicate that cross-talk in the expression of SPIB and KI-67 may be associated with poor prognosis and may potentially serve as a clinical prognostic indicator of HCC. This is the first time that such an association has been reported.
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Affiliation(s)
- Yi-Jung Ho
- Institute of Preventive Medicine, National Defense Medical Center, Taipei, Taiwan.
| | - Yueh-Min Lin
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan; Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan.
| | - Yen-Chi Huang
- Department of Styling & Cosmetology, Hsin Sheng Junior College of Medical Care and Management, Taoyuan, Taiwan.
| | - Kun-Tu Yeh
- Department of Pathology, Changhua Christian Hospital, Changhua, Taiwan; School of Medicine, Chung Shan Medical University, Taichung, Taiwan.
| | - Liang-In Lin
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan; Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan.
| | - Jeng-Wei Lu
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University, Taipei, Taiwan.
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122
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Zhang ZQ, Han YZ, Nian Q, Chen G, Cui SQ, Wang XY. Tumor Invasiveness, Not Lymphangiogenesis, Is Correlated with Lymph Node Metastasis and Unfavorable Prognosis in Young Breast Cancer Patients (≤35 Years). PLoS One 2015; 10:e0144376. [PMID: 26656588 PMCID: PMC4676633 DOI: 10.1371/journal.pone.0144376] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Accepted: 11/17/2015] [Indexed: 11/19/2022] Open
Abstract
The morbidity rate of breast cancer is on the rise, and the age of onset appears to be trending toward a young age. Breast cancer in young women (BCYW) has a number of distinctive features that differ from breast cancer in middle-aged or elderly women (BCMEW). Lymphatic metastasis plays an important role in the spread of BCYW; however, the mechanisms of lymph node metastasis (LNM) in BCYW are not clear. This study aimed to investigate the mechanism of lymphatic metastasis in BCYW and to evaluate the relationships between lymphangiogenesis, the expression of matrix metalloproteinase 9 (MMP-9) and vascular endothelial growth factor C (VEGF-C) expression, clinicopathological characteristics, and prognosis. Using immunohistochemistry, MMP-9, VEGF-C and the level of lymphatic microvessel density (LMVD) were analyzed in 106 cases of breast invasive ductal carcinoma and 20 cases of breast proliferative lesions. Compared with BCMEW, BCYW had higher MMP-9 expression, higher LNM, and more adverse prognoses. In BCYW, high MMP-9 expression was positively correlated with LNM and impaired survival time. However, in BCMEW, MMP-9 expression was not correlated with LNM or survival time. In addition, high VEGF-C expression was positively correlated with a high level of LMVD in both BCYW and BCMEW. Nevertheless, a high level of LMVD was not correlated with LNM or survival time in the two groups. More importantly, univariate and multivariate survival analysis showed that MMP-9 expression and LNM were independent prognostic factors in BCYW. Our present study indicates that lymphangiogenesis induced by VEGF-C is augmented in breast cancer; however, a higher level of lymphangiogenesis has no significant impact on LNM or survival time. We suggest that tumor invasiveness, rather than lymphangiogenesis, plays an important role in LNM among BCYW. Moreover, MMP-9 and LNM were independent prognostic factors for BCYW.
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Affiliation(s)
- Zhi-Qiang Zhang
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
- Key Laboratory of Pediatrics in Chongqing, Chongqing, China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
- Department of Critical Care Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
- * E-mail: (ZZ); (XW)
| | - Yu-Zhen Han
- Department of Pathology, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Qing Nian
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
- Key Laboratory of Pediatrics in Chongqing, Chongqing, China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
- Department of Critical Care Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
| | - Gang Chen
- Department of Vascular and Endovascular Surgery, Affiliated Hospital of Binzhou Medical University, Binzhou, China
| | - Shu-Qing Cui
- Department of Nursing care and intervention, Community Health Service Center of North Binzhou, Binzhou, China
| | - Xing-Yong Wang
- Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
- Key Laboratory of Pediatrics in Chongqing, Chongqing, China
- Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
- Department of Critical Care Medicine, Children’s Hospital of Chongqing Medical University, Chongqing, China
- * E-mail: (ZZ); (XW)
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The anticancer potential of steroidal saponin, dioscin, isolated from wild yam (Dioscorea villosa) root extract in invasive human breast cancer cell line MDA-MB-231 in vitro. Arch Biochem Biophys 2015; 591:98-110. [PMID: 26682631 DOI: 10.1016/j.abb.2015.12.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Revised: 11/09/2015] [Accepted: 12/02/2015] [Indexed: 01/18/2023]
Abstract
Previously, we observed that wild yam (Dioscorea villosa) root extract (WYRE) was able to activate GATA3 in human breast cancer cells targeting epigenome. This study aimed to find out if dioscin (DS), a bioactive compound of WYRE, can modulate GATA3 functions and cellular invasion in human breast cancer cells. MCF-7 and MDA-MB-231 cells were treated in the absence/presence of various concentrations of DS and subjected to gene analysis by RT-qPCR, immunoblotting, and immunocytochemistry. We determined the ability of MDA-MB-231 cells to migrate into wound area and examined the effects of DS on cellular invasion using invasion assay. DS reduced cell viability of both cell lines in a concentration and time-dependent manner. GATA3 expression was enhanced by DS (5.76 μM) in MDA-MB-231 cells. DS (5.76 μM)-treated MDA-MB-231 cells exhibited the morphological characteristic of epithelial-like cells; mRNA expression of DNMT3A, TET2, TET3, ZFPM2 and E-cad were increased while TET1, VIM and MMP9 were decreased. Cellular invasion of MDA-MB-231 was reduced by 65 ± 5% in the presence of 5.76 μM DS. Our data suggested that DS-mediated pathway could promote GATA3 expression at transcription and translation levels. We propose that DS has potential to be used as an anti-invasive agent in breast cancer.
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124
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Baldwin RM, Haghandish N, Daneshmand M, Amin S, Paris G, Falls TJ, Bell JC, Islam S, Côté J. Protein arginine methyltransferase 7 promotes breast cancer cell invasion through the induction of MMP9 expression. Oncotarget 2015; 6:3013-32. [PMID: 25605249 PMCID: PMC4413634 DOI: 10.18632/oncotarget.3072] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2014] [Accepted: 12/18/2014] [Indexed: 12/05/2022] Open
Abstract
Recent evidence points to the protein arginine methyltransferase (PRMT) family of enzymes playing critical roles in cancer. PRMT7 has been identified in several gene expression studies to be associated with increased metastasis and decreased survival in breast cancer patients. However, this has not been extensively studied. Here we report that PRMT7 expression is significantly upregulated in both primary breast tumour tissues and in breast cancer lymph node metastases. We have demonstrated that reducing PRMT7 levels in invasive breast cancer cells using RNA interference significantly decreased cell invasion in vitro and metastasis in vivo. Conversely, overexpression of PRMT7 in non-aggressive MCF7 cells enhanced their invasiveness. Furthermore, we show that PRMT7 induces the expression of matrix metalloproteinase 9 (MMP9), a well-known mediator of breast cancer metastasis. Importantly, we significantly rescued invasion of aggressive breast cancer cells depleted of PRMT7 by the exogenous expression of MMP9. Our results demonstrate that upregulation of PRMT7 in breast cancer may have a significant role in promoting cell invasion through the regulation of MMP9. This identifies PRMT7 as a novel and potentially significant biomarker and therapeutic target for breast cancer.
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Affiliation(s)
- R Mitchell Baldwin
- Department of Cellular and Molecular Medicine, Ottawa, Ontario, Canada.,Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Nasim Haghandish
- Department of Cellular and Molecular Medicine, Ottawa, Ontario, Canada.,Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Manijeh Daneshmand
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Shahrier Amin
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Department of Pathology, Ottawa Hospital, Ottawa, Ontario, Canada
| | - Geneviève Paris
- Department of Cellular and Molecular Medicine, Ottawa, Ontario, Canada.,Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Theresa J Falls
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - John C Bell
- Center for Innovative Cancer Therapeutics, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada.,Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario, Canada
| | - Shahidul Islam
- Department of Pathology and Laboratory Medicine, University of Ottawa, Ottawa, Ontario, Canada.,Department of Pathology, Ottawa Hospital, Ottawa, Ontario, Canada
| | - Jocelyn Côté
- Department of Cellular and Molecular Medicine, Ottawa, Ontario, Canada.,Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
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125
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Cheuk IW, Shin VY, Siu MT, Tsang JY, Ho JC, Chen J, Tse GM, Wang X, Kwong A. Association of EP2 receptor and SLC19A3 in regulating breast cancer metastasis. Am J Cancer Res 2015; 5:3389-3399. [PMID: 26807319 PMCID: PMC4697685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 09/16/2015] [Indexed: 06/05/2023] Open
Abstract
Breast cancer is the most common cancer in women worldwide. Triple-negative breast cancer patients have higher metastatic rate than patients with other breast cancer subtypes. Distant metastasis is one of the causes leading to the high mortality rates. Cyclooxygenase-2 (COX2) is associated with breast cancer metastasis and the downstream prostaglandin E2 (PGE2) exerted its effect through EP receptors (EP1-EP4). However, the exact molecular events of EP receptors in breast cancer metastasis remain undefined. Expressions of EP receptors were determined during cancer development in NOD-SCID mice inoculated with MB-231 and MB-231-EP2 clone. EP2 overexpressing stable clone was constructed to investigate the proliferation and invasion potentials in vivo and in vitro. Drug transporter array was used to identify EP2 receptor-associated drug transported genes in breast cancer metastasis. Localization of EP2 receptor in primary tissues and xenografts were examined by immunostaining. Stable EP2-expression cells formed larger tumors than parental cells in mice model and was highly expressed in both primary and metastatic tissues. Silencing of EP2 receptor by siRNA and antagonist (AH 6809) significantly decreased cell proliferation and invasion, concomitant with reduced MMP-2 and MMP-9 expressions. Results from array data showed that expression of SLC19A3 was markedly increased in EP2 siRNA transfected cells. Ectopic expression of SLC19A3 retarded cell proliferation, invasion and MMPs expressions. Notably, SLC19A3 had a lower expression in primary tissues and was negatively correlated with EP2 receptor expression. Our novel finding revealed that EP2 receptor regulated metastasis through downregulation of SLC19A3. Thus, targeting EP2-SLC19A3 signaling is a potential therapeutic therapy for treating metastatic breast cancer.
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Affiliation(s)
| | - Vivian Y Shin
- Department of Surgery, The University of Hong KongHong Kong
| | - Man T Siu
- Department of Surgery, The University of Hong KongHong Kong
| | - Julia Y Tsang
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong KongHong Kong
| | - John C Ho
- Department of Surgery, The University of Hong KongHong Kong
| | - Jiawei Chen
- Department of Surgery, The University of Hong KongHong Kong
| | - Gary M Tse
- Department of Anatomical and Cellular Pathology, The Chinese University of Hong KongHong Kong
| | - Xian Wang
- Department of Medical Oncology, Biomedical Research Center, Sir Runrun Shaw Hospital, School of Medicine, Zhejiang UniversityChina
| | - Ava Kwong
- Department of Surgery, The University of Hong KongHong Kong
- Department of Surgery, The Hong Kong Sanatorium and HospitalHong Kong
- The Hong Kong Hereditary Breast Cancer Family RegistryHong Kong
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126
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Aleskandarany MA, Sonbul SN, Mukherjee A, Rakha EA. Molecular Mechanisms Underlying Lymphovascular Invasion in Invasive Breast Cancer. Pathobiology 2015; 82:113-23. [DOI: 10.1159/000433583] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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127
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Abstract
Background Matrix-metalloproteinases 9 (MMP-9) belongs to the class of matrix metalloproteinases whose main function is to degrade and remodel the extracellular matrix (ECM). MMP-9 has been shown to be an integral part of many diseases where modulation of the ECM is a key step such as cancer, osteoporosis and fibrosis. MMP-9 is secreted as a latent pro-enzyme that requires activation in the extracellular space. Therefore, identifying physiological and molecular contexts, which can activate MMP-9 is important. Results Acidification of osteoclast-conditioned media to pH 5 resulted in a fragment with a size corresponding to active MMP-9. Also, treatment of recombinant proMMP-9 with recombinant cathepsin K (CTSK) at pH 5 yielded a fragment that corresponded to the molecular weight of active MMP-9, and showed MMP-9 activity. This activation was abrogated in the presence of CTSK inhibitor indicating that CTSK was responsible for the activation of pro-MMP-9. Knocking down CTSK in MDA-MB-231 cells also diminished MMP-9 activity compared to wild type control. Conclusions Here we provide the first evidence that CTSK can cleave and activate MMP-9 in acidic environments such as seen in tumors and during bone resorption. This finding provides a key link between CTSK expression in tumors and bone and ECM remodeling, through MMP-9 activation. This novel mechanism to activate MMP-9 through extracellular physiological changes elucidated in this study reveals a protease-signaling network involving CTSK and MMP-9 and provides the impetus to explore ECM proteases as physiological markers and pharmacological targets. Electronic supplementary material The online version of this article (doi:10.1186/s13104-015-1284-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jon Christensen
- Institute for Macromolecular Chemistry, University of Freiburg, Hermann-Staudinger-Haus Stefan-Meier-Straße 31, 79104, Freiburg, Germany. .,BIOSS-Centre for Biological Signalling Studies, University of Freiburg, Schänzlestraße 18, 79104, Freiburg, Germany.
| | - V Prasad Shastri
- Institute for Macromolecular Chemistry, University of Freiburg, Hermann-Staudinger-Haus Stefan-Meier-Straße 31, 79104, Freiburg, Germany. .,BIOSS-Centre for Biological Signalling Studies, University of Freiburg, Schänzlestraße 18, 79104, Freiburg, Germany.
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128
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Ma Y, Zou F, Xiong J, Wan W, Yin L, Li X, Bei Z, Yuan L, Meng S, Wang J, Song G. Effect of Matrine on HPAC cell migration by down-regulating the expression of MT1-MMP via Wnt signaling. Cancer Cell Int 2015; 15:59. [PMID: 26113801 PMCID: PMC4480578 DOI: 10.1186/s12935-015-0210-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 06/01/2015] [Indexed: 12/31/2022] Open
Abstract
Aim This study sought to explore the exact mechanism of Matrine inhibited migration and invasion of human pancreatic cancer cells. Methods HPAC or Capan-1 cells were cultured in completed RPMI-1640 medium, contained with 50 μg/ml Matrine or 0.05 μg/ml docetaxel, respectively. Cell viability was evaluated by spectrophotometric analysis using MTT assay. Wound healing assay and transwell approach were used to detect the effects of Matrine on HPAC cell migration and invasion. Western Blot and RT-PCR were performed to detect the expressions of MT1-MMP, Wnt and β-Catenin. CHIP assay was used to detect whether the MT1-MMP transcription activity correlated with Wnt signaling pathway. Results MTT results indicated that cell proliferration was inhibited by Matrine at a range of concentrations, especially at high dose. We further found that Matrine treatment significantly induced cell migration and invasion decreased. Interestingly, the expression of MT1-MMP decreased evidently upon Matrine treatment, paralleled with the expressions of Wnt and β-Catenin detected by Western Blot and RT-PCR assay. Further analysis of MT1-MMP transcription activity revealed that Matrine reduced the expression of MT1-MMP mediated by Wnt signaling pathway. Conclusion Matrine play a vital role in inhibiting HPAC cellular migration and invasion through down-regulating the expression of MT1-MMP via Wnt signaling pathway. Electronic supplementary material The online version of this article (doi:10.1186/s12935-015-0210-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Yongchao Ma
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China.,Key lab, of BioMedicine of Luohe City, Luohe, China
| | - Fazhang Zou
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China.,Key lab, of BioMedicine of Luohe City, Luohe, China
| | - Junping Xiong
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
| | - Wei Wan
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
| | - Li Yin
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
| | - Xianjia Li
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
| | - Zhanyu Bei
- Chengde Nursing Vocational College, Chengde, China
| | - Lei Yuan
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
| | - Song Meng
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
| | - Jianguo Wang
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
| | - Guohua Song
- Luohe Medical College, Daxue Road, #148, Luohe City, Henan Province 462000 People's Republic of China
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Radisky ES, Radisky DC. Matrix metalloproteinases as breast cancer drivers and therapeutic targets. Front Biosci (Landmark Ed) 2015; 20:1144-63. [PMID: 25961550 DOI: 10.2741/4364] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Members of the matrix metalloproteinase (MMP) family have been identified as poor prognosis markers for breast cancer patients and as drivers of many facets of the tumor phenotype in experimental models. Early enthusiasm for MMPs as therapeutic targets was tempered following disappointing clinical trials that utilized broad spectrum, small molecule catalytic site inhibitors. However, subsequent research has continued to define key roles for MMPs as breast cancer promoters, to elucidate the complex roles that that these proteins play in breast cancer development and progression, and to identify how these roles are linked to specific and unique biochemical features of individual members of the MMP family. Here, we provide an overview of the structural features of the MMPs, then discuss clinical studies identifying which MMP family members are linked with breast cancer development and new experimental studies that reveal how these specific MMPs may play unique roles in the breast cancer microenvironment. We conclude with a discussion of the most promising avenues for development of therapeutic agents capable of targeting the tumor-promoting properties of MMPs.
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Affiliation(s)
- Evette S Radisky
- Department of Cancer Biology, Mayo Clinic Comprehensive Cancer Center, Jacksonville, Florida 32224,
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Zhang X, Jin G, Li J, Zhang L. Association between four MMP-9 polymorphisms and breast cancer risk: a meta-analysis. Med Sci Monit 2015; 21:1115-23. [PMID: 25890491 PMCID: PMC4413812 DOI: 10.12659/msm.893890] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The role of matrix metalloproteinase 9 (MMP-9) polymorphisms in breast cancer risk remains unclear. The purpose of this study was to evaluate the association between MMP-9 variants and breast cancer susceptibility. MATERIAL AND METHODS Case-control studies were searched on electronic databases to retrieve related articles published between 2000 and 2014 concerning the role of MMP-9 variants in breast cancer risk. Pooled odds ratios (OR) with correlative 95% confidence intervals (CI) were employed to assess this association. RESULTS Ten articles were screened out, including 6177 breast cancer patients and 6726 matched-controls. For rs3918242 (-1562 C/T), 6 studies contained 1435 patients and 1446 controls. Although the frequency of risk allele C was higher in breast cancer patients than in controls, only TT genotype in recessive model was significantly associated with increased risk of breast cancer (TT vs. CT+CC: OR=1.55, 95% CI=1.12-2.16, P=0.009) in a fixed-effects model. This significant relationship was not observed in other genetic models (P>0.05). No significant association was found between breast cancer risk and rs17576, rs2250889, and rs3787268 under any genetic models. CONCLUSIONS Our results show that TT genotype of MMP-9-1562 C/T polymorphism might be a risk factor for breast cancer. More studies are needed to further explore this association.
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Affiliation(s)
- Xiaoli Zhang
- Life Science Research Center, Hebei North University, Zhangjiakou, Hebei, China (mainland)
| | - Guoyin Jin
- College of Traditional Chinese Medicine, Hebei North University, Zhangjiakou, Hebei, China (mainland)
| | - Jianfeng Li
- Basic Medical College, Hebei North University, Zhangjiakou, Hebei, China (mainland)
| | - Linxi Zhang
- Life Science Research Center, Hebei North University, Zhangjiakou, Hebei, China (mainland)
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