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Kakkad S, Krishnamachary B, Fackche N, Garner M, Brock M, Huang P, Bhujwalla ZM. Collagen 1 Fiber Volume Predicts for Recurrence of Stage 1 Non-Small Cell Lung Cancer. Tomography 2024; 10:1099-1112. [PMID: 39058055 PMCID: PMC11281282 DOI: 10.3390/tomography10070083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 07/28/2024] Open
Abstract
Background: The standard of care for stage 1 NSCLC is upfront surgery followed by surveillance. However, 20-30% of stage 1 NSCLC recur. There is an unmet need to identify individuals likely to recur who would benefit from frequent monitoring and aggressive cancer treatments. Collagen 1 (Col1) fibers detected by second harmonic generation (SHG) microscopy are a major structural component of the extracellular matrix (ECM) of tumors that play a role in cancer progression. Method: We characterized Col1 fibers with SHG microscopy imaging of surgically resected stage 1 NSCLC. Gene expression from RNA sequencing data was used to validate the SHG microscopy findings. Results: We identified a significant (p ≤ 0.05) increase in the Col1 fiber volume in stage 1 NSCLC that recurred. The increase in Col1 fiber volume was supported by significant increases in the gene expression of Col1 in invasive, compared to noninvasive, lung adenocarcinoma. Significant differences were identified in the gene expression of other ECM proteins, as well as CAFs, immune checkpoint markers, immune cytokines, and T-cell markers. Conclusion: Col1 fiber analysis can provide a companion diagnostic test to evaluate the likelihood of tumor recurrence following stage 1 NSCLC. The studies expand our understanding of the role of the ECM in NSCLC recurrence.
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Affiliation(s)
- Samata Kakkad
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (S.K.); (B.K.)
| | - Balaji Krishnamachary
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (S.K.); (B.K.)
| | - Nadege Fackche
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (N.F.); (M.G.); (M.B.)
| | - Matthew Garner
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (N.F.); (M.G.); (M.B.)
| | - Malcom Brock
- Department of Surgery, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (N.F.); (M.G.); (M.B.)
| | - Peng Huang
- Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
| | - Zaver M. Bhujwalla
- Division of Cancer Imaging Research, The Russell H. Morgan Department of Radiology and Radiological Science, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; (S.K.); (B.K.)
- Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
- Department of Radiation Oncology and Molecular Radiation Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
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2
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He Z, Xu Y, Rao Z, Zhang Z, Zhou J, Zhou T, Wang H. The role of α7-nAChR-mediated PI3K/AKT pathway in lung cancer induced by nicotine. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 912:169604. [PMID: 38157907 DOI: 10.1016/j.scitotenv.2023.169604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
Nicotine enters the environment mainly through human activity, as well as natural sources. This review article examines the increasing evidence implicating nicotine in the initiation and progression of lung cancer. Moreover, it primarily focuses on elucidating the activation mechanism of phosphoinositide 3-kinase (PI3K)/protein kinase B (PKB, also known as AKT) signaling pathway, regulated by α7 subtype nicotinic acetylcholine receptor (α7-nAChR), in relation to the proliferation, invasion, and metastasis of lung cancer cells induced by nicotine, as well as nicotine-mediated anti-apoptotic effects. This process involves PI3K/AKT phosphorylated-B-cell lymphoma-2 (Bcl-2) family proteins, PI3K/AKT/mammalian target of rapamycin (mTOR), PI3K/AKT/nuclear factor-κB (NF-κB), hepatocyte growth factor (HGF)/cellular-mesenchymal epithelial transition factor (c-Met)-induced PI3K/AKT and PI3K/AKT activated-hypoxia-inducible factor-1α (HIF-1α)/vascular endothelial growth factor (VEGF) pathways. In addition, we also deliberated on the related challenges and upcoming prospects within this field. These lay the foundation for further study on nicotine, lung tumorigenesis, and PI3K/AKT related molecular mechanisms. This work has the potential to significantly contribute to the treatment and prognosis of gastric cancer in smokers. Besides, the crucial significance of PI3K/AKT signaling pathway in multiple molecular pathways also suggests that its target antagonists may inhibit the development and progression of lung cancer, providing a possible new perspective for solving the problem of nicotine-promoted lung cancer. The emerging knowledge about the carcinogenic mechanisms of nicotine action should be considered during the environmental assessment of tobacco and other nicotine-containing products.
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Affiliation(s)
- Zihan He
- School of Public Health, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Chongqing Research Institute of Nanchang University, Tai Bai Road, Tongnan, Chongqing 402679, PR China
| | - Yuqin Xu
- School of Public Health, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Chongqing Research Institute of Nanchang University, Tai Bai Road, Tongnan, Chongqing 402679, PR China
| | - Zihan Rao
- School of Public Health, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Chongqing Research Institute of Nanchang University, Tai Bai Road, Tongnan, Chongqing 402679, PR China
| | - Zhongwei Zhang
- School of Public Health, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Chongqing Research Institute of Nanchang University, Tai Bai Road, Tongnan, Chongqing 402679, PR China
| | - Jianming Zhou
- School of Public Health, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Chongqing Research Institute of Nanchang University, Tai Bai Road, Tongnan, Chongqing 402679, PR China
| | - Tong Zhou
- School of Public Health, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Chongqing Research Institute of Nanchang University, Tai Bai Road, Tongnan, Chongqing 402679, PR China
| | - Huai Wang
- School of Public Health, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Jiangxi Provincial Key Laboratory of Preventive Medicine, Jiangxi Medical College, Nanchang University, No. 461 Ba Yi Avenue, Nanchang, Jiangxi 330006, PR China; Chongqing Research Institute of Nanchang University, Tai Bai Road, Tongnan, Chongqing 402679, PR China.
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3
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He S, Shi J, Zhou H, Li Q, Wu L. Lnc-ABCA12-8 confers acquired resistance to gefitinib in non-small cell lung cancer by regulating the alternative splicing of fibronectin 1 in the IIICS region. Cancer Gene Ther 2022; 29:1686-1696. [PMID: 35701616 DOI: 10.1038/s41417-022-00483-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 04/05/2022] [Accepted: 05/13/2022] [Indexed: 02/04/2023]
Abstract
Acquired resistance to epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs), such as gefitinib, has dramatically impaired the clinical outcomes in non-small cell lung cancer (NSCLC) patients, but the mechanisms are still unclear in substantial cases. In our previous study, we demonstrated that a novel long non-coding RNA (lncRNA), lnc-ABCA12-8, was overexpressed in gefitinib-resistant NSCLC cells, but the exact function is unknown. In this study, we confirmed that lnc-ABCA12-8 was significantly upregulated both in NSCLC cell lines and the plasma samples of NSCLC patients with acquired resistance to gefitinib. Downregulation of lnc-ABCA12-8 could reverse gefitinib resistance both in vitro and in vivo. Mechanistically, lnc-ABCA12-8 interacted with alternative splicing factor/splicing factor 2 (ASF/SF2), promoted the binding of ASF/SF2 to the IIICS exon of fibronectin 1 (FN1) gene and enhanced the IIICS region inclusion during fibronectin 1 (FN1) alternative splicing, resulting in the upregulation of entire IIICS region, and enhanced cell proliferation, migration, invasion, and adhesion. Taken together, our study suggest that lnc-ABCA12-8 is involved in the acquired resistance to gefitinib, and may be a novel biomarker and therapeutic target for monitoring and overcoming gefitinib resistance in NSCLC.
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Affiliation(s)
- Shuai He
- Institute of Life Sciences, Chongqing Medical University, 400016, Chongqing, PR China.,Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, PR China
| | - Jingjing Shi
- Institute of Life Sciences, Chongqing Medical University, 400016, Chongqing, PR China
| | - HongHao Zhou
- Institute of Life Sciences, Chongqing Medical University, 400016, Chongqing, PR China.,Pharmacogenetics Research Institute, Institute of Clinical Pharmacology, Central South University, Changsha, PR China
| | - Qingling Li
- Institute of Life Sciences, Chongqing Medical University, 400016, Chongqing, PR China. .,Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, PR China.
| | - Lanxiang Wu
- Institute of Life Sciences, Chongqing Medical University, 400016, Chongqing, PR China. .,Molecular Medicine Diagnostic and Testing Center, Chongqing Medical University, Chongqing, PR China.
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4
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Han T, Jiang Y, Wang X, Deng S, Hu Y, Jin Q, Long D, Liu K. 3D matrix promotes cell dedifferentiation into colorectal cancer stem cells via integrin/cytoskeleton/glycolysis signaling. Cancer Sci 2022; 113:3826-3837. [PMID: 36052705 DOI: 10.1111/cas.15548] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/12/2022] [Accepted: 07/20/2022] [Indexed: 11/29/2022] Open
Abstract
The potential for tumor occurrence triggered by cancer stem cells (CSCs) has emerged as a significant challenge for human colorectal cancer therapy. However, the underlying mechanism of CSC development remains controversial. Our study provided evidence that the bulk of tumor cells could dedifferentiate to CSCs and reacquire CSCs-like phenotypes if cultured in the presence of extracellular matrix reagents, such as Matrigel and fibrin gels. In these 3D gels, CD133- colorectal cancer cells can regain tumorigenic potential and stem-like phenotypes. Mechanistically, the 3D extracellular matrix could mediate cytoskeletal F-actin bundling through biomechanical force associated receptors integrin β1 (ITGB1), contributing to the release of E3 ligase Tripartite motif protein 11 (TRIM11) from cytoskeleton and degradation of the glycolytic rate-limiting enzyme phosphofructokinase (PFK). Consequently, PFK inhibition resulted in enhanced glycolysis and upregulation of hypoxia-inducible factor 1 (HIF1α), thereby promoting the reprogramming of stem cell transcription factors and facilitating tumor progression in patients. This study provided novel insights into the role of the extracellular matrix in the regulation of CSC dedifferentiation in a cytoskeleton/glycolysis-dependent manner.
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Affiliation(s)
- Tong Han
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Yuhong Jiang
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Xiaobo Wang
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Shuangya Deng
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Yongjun Hu
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Qianqian Jin
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Dongju Long
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
| | - Kuijie Liu
- Department of General Surgery, the Second Xiangya Hospital of Central South University, Changsha, China
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5
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He L, Wang GP, Guo JY, Chen ZR, Liu K, Gong SS. Epithelial-Mesenchymal Transition Participates in the Formation of Vestibular Flat Epithelium. Front Mol Neurosci 2022; 14:809878. [PMID: 34975404 PMCID: PMC8719593 DOI: 10.3389/fnmol.2021.809878] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Accepted: 12/02/2021] [Indexed: 12/03/2022] Open
Abstract
The vestibular sensory epithelium of humans and mice may degenerate into a layer of flat cells, known as flat epithelium (FE), after a severe lesion. However, the pathogenesis of vestibular FE remains unclear. To determine whether the epithelial–mesenchymal transition (EMT) participates in the formation of vestibular FE, we used a well-established mouse model in which FE was induced in the utricle by an injection of streptomycin into the inner ear. The mesenchymal and epithelial cell markers and cell proliferation were examined using immunofluorescence staining and quantitative reverse transcription polymerase chain reaction (qRT-PCR). The function of the EMT was assessed through transcriptome microarray analysis. The results demonstrated that mesenchymal cell markers (α-SMA, S100A4, vimentin, and Fn1) were upregulated in vestibular FE compared with the normal utricle. Robust cell proliferation, which was absent in the normal status, was observed in the formation of FE. Microarray analysis identified 1,227 upregulated and 962 downregulated genes in vestibular FE. Gene Ontology (GO) analysis revealed that differentially expressed genes (DEGs) were highly associated with several EMT-related GO terms, such as cell adhesion, cell migration, and extracellular matrix. Pathway enrichment analysis revealed that DEGs were enriched in the EMT-related signaling pathways, including extracellular matrix (ECM)-receptor interaction, focal adhesion, PI3K/Akt signaling pathway and cell adhesion molecule. Protein–protein interaction networks screened 20 hub genes, which were Akt, Casp3, Col1a1, Col1a2, Fn1, Hgf, Igf1,Il1b, Irs1, Itga2, Itga5, Jun, Mapk1, Myc, Nras, Pdgfrb, Tgfb1, Thbs1, Trp53, and Col2a1. Most of these genes are reportedly involved in the EMT process in various tissues. The mRNA expression level of hub genes was validated using qRT-PCR. In conclusion, the present study indicates that EMT plays a significant role in the formation of vestibular FE and provides an overview of transcriptome characteristics in vestibular FE.
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Affiliation(s)
- Lu He
- Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Guo-Peng Wang
- Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jing-Ying Guo
- Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Zhong-Rui Chen
- Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ke Liu
- Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Shu-Sheng Gong
- Department of Otolaryngology-Head and Neck Surgery, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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6
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A Five Collagen-Related Gene Signature to Estimate the Prognosis and Immune Microenvironment in Clear Cell Renal Cell Cancer. Vaccines (Basel) 2021; 9:vaccines9121510. [PMID: 34960256 PMCID: PMC8707639 DOI: 10.3390/vaccines9121510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Revised: 12/15/2021] [Accepted: 12/17/2021] [Indexed: 11/30/2022] Open
Abstract
Collagen is the main component of the extracellular matrix (ECM) and might play an important role in tumor microenvironments. However, the relationship between collagen and clear cell renal cell cancer (ccRCC) is still not fully clarified. Hence, we aimed to establish a collagen-related signature to predict the prognosis and estimate the tumor immune microenvironment in ccRCC patients. Patients with a high risk score were often correlated with unfavorable overall survival (OS) and an immunosuppressive microenvironment. In addition, the collagen-related genetic signature was highly correlated with clinical pathological features and can be considered as an independent prognostic factor in ccRCC patients. Moreover, GSEA results show that patients with a high risk grade tend to be associated with epithelial–mesenchymal junctions (EMT) and immune responses. In this study, we developed a collagen-related gene signature, which might possess the potential to predict the prognosis and immune microenvironment of ccRCC patients and function as an independent prognostic factor in ccRCC.
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7
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Sheng S, Guo B, Wang Z, Zhang Z, Zhou J, Huo Z. Aberrant Methylation and Immune Microenvironment Are Associated With Overexpressed Fibronectin 1: A Diagnostic and Prognostic Target in Head and Neck Squamous Cell Carcinoma. Front Mol Biosci 2021; 8:753563. [PMID: 34746236 PMCID: PMC8563786 DOI: 10.3389/fmolb.2021.753563] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/20/2021] [Indexed: 12/24/2022] Open
Abstract
Background: Fibronectin 1 (FN1) is involved in cell adhesion and migration processes such as metastasis, wound healing, embryogenesis, blood coagulation, and host defense. However, the role of FN1 in the diagnosis and prognosis of head and neck squamous cell carcinoma (HNSCC) is far from understood. Methods: FN1 expression profiles and clinical parameters from multiple HNSCC datasets were applied to evaluate the association between FN1 expression and HNSCC survival. We also identified FN1 expression in the mRNA and protein levels in 20 pairs of clinical samples by quantitative polymerase chain reaction (qPCR) and immunohistochemistry. Receiver operator characteristic (ROC) analysis was used to demonstrate the potential diagnostic value of FN1 in HNSCC. Aberrant methylation PPI networks were established using multiple bioinformatic tools based on TCGA database. The immune microenvironment and levels of immune checkpoints were investigated between groups with high and low FN1 expression. Results: FN1 was significantly upregulated in HNSCC compared with para-carcinoma tissues on the basis of TCGA database and our clinical samples. Univariate and multivariate Cox regression analysis revealed that FN1 could be an independent indicator for prognosis of HNSCC. GO enrichment and KEGG pathway analysis demonstrated that cell adhesion, focal adhesion, and the PI3K-Akt signaling pathway might be involved in the potential mechanisms of FN1's prognostic performance in HNSCC. Methylation of FN1 was also higher and closely associated with poorer survival in HNSCC. In addition, FN1 expression was positively correlated with three DNA methyltransferases (DNMT1, DNMT3A, and DNMT3B). Furthermore, FN1 was positively associated with CD4+ T cells, endothelial cells, macrophages, and NK cells and negatively correlated with CD8+ T cells Conclusion: FN1 might be an independent prognostic biomarker for HNSCC patients. Hypermethylation, the aberrant proportions of immune cells, and the PI3K/Akt signaling pathway might be involved in the mechanism of FN1's oncogene role in HNSCC.
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Affiliation(s)
- Surui Sheng
- Shanghai Key Laboratory of Stomatology, Department of Oral and Maxillofacial-Head and Neck Oncology, Shanghai Ninth People's Hospital, National Center for Stomatology, National Clinical Research Center for Oral Diseases, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing Guo
- Shanghai Key Laboratory of Tissue Engineering, Department of Plastic and Reconstructive Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhentao Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zhihua Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jieyu Zhou
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Zirong Huo
- Department of Otorhinolaryngology Head and Neck Surgery, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
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8
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Laskaratos FM, Levi A, Schwach G, Pfragner R, Hall A, Xia D, von Stempel C, Bretherton J, Thanapirom K, Alexander S, Ogunbiyi O, Watkins J, Luong TV, Toumpanakis C, Mandair D, Caplin M, Rombouts K. Transcriptomic Profiling of In Vitro Tumor-Stromal Cell Paracrine Crosstalk Identifies Involvement of the Integrin Signaling Pathway in the Pathogenesis of Mesenteric Fibrosis in Human Small Intestinal Neuroendocrine Neoplasms. Front Oncol 2021; 11:629665. [PMID: 33718208 PMCID: PMC7943728 DOI: 10.3389/fonc.2021.629665] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 01/15/2021] [Indexed: 12/22/2022] Open
Abstract
Aim Analysis of the pathophysiology of mesenteric fibrosis (MF) in small intestinal neuroendocrine tumors (SI-NETs) in an in vitro paracrine model and in human SI-NET tissue samples. Methods An indirect co-culture model of SI-NET cells KRJ-I and P-STS with stromal cells HEK293 was designed to evaluate the paracrine effects on cell metabolic activity, gene expression by RT2 PCR Profilers to analyse cancer and fibrosis related genes, and RNA sequencing. The integrin signaling pathway, a specific Ingenuity enriched pathway, was further explored in a cohort of human SI-NET tissues by performing protein analysis and immunohistochemistry. Results RT Profiler array analysis demonstrated several genes to be significantly up- or down-regulated in a cell specific manner as a result of the paracrine effect. This was further confirmed by employing RNA sequencing revealing multiple signaling pathways involved in carcinogenesis and fibrogenesis that were significantly affected in these cell lines. A significant upregulation in the expression of various integrin pathway – related genes was identified in the mesenteric mass of fibrotic SI-NET as confirmed by RT-qPCR and immunohistochemistry. Protein analysis demonstrated downstream activation of the MAPK and mTOR pathways in some patients with fibrotic SI-NETs. Conclusion This study has provided the first comprehensive analysis of the crosstalk of SI-NET cells with stromal cells. A novel pathway – the integrin pathway – was identified and further validated and confirmed in a cohort of human SI-NET tissue featured by a dual role in fibrogenesis/carcinogenesis within the neoplastic fibrotic microenvironment.
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Affiliation(s)
- Faidon-Marios Laskaratos
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom.,Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Ana Levi
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Gert Schwach
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Roswitha Pfragner
- Otto Loewi Research Center, Medical University of Graz, Graz, Austria
| | - Andrew Hall
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Dong Xia
- Royal Veterinary College, University of London, London, United Kingdom
| | - Conrad von Stempel
- Radiology Department, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Josephine Bretherton
- Radiology Department, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Kessarin Thanapirom
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
| | - Sarah Alexander
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Olagunju Ogunbiyi
- Department of Colorectal Surgery, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Jennifer Watkins
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Tu Vinh Luong
- Academic Centre for Cellular Pathology, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Christos Toumpanakis
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Dalvinder Mandair
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Martyn Caplin
- Neuroendocrine Tumour Unit, ENETS Centre of Excellence, Royal Free London NHS Foundation Trust, London, United Kingdom
| | - Krista Rombouts
- Regenerative Medicine and Fibrosis Group, Institute for Liver and Digestive Health, Royal Free Hospital, University College London, London, United Kingdom
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9
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Liang H, Yu M, Yang R, Zhang L, Zhang L, Zhu D, Luo H, Hong Y, Yu T, Sun J, Shan H, Gu Y. A PTAL-miR-101-FN1 Axis Promotes EMT and Invasion-Metastasis in Serous Ovarian Cancer. MOLECULAR THERAPY-ONCOLYTICS 2019; 16:53-62. [PMID: 31930166 PMCID: PMC6951825 DOI: 10.1016/j.omto.2019.12.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2018] [Accepted: 12/03/2019] [Indexed: 12/13/2022]
Abstract
Long non-coding RNAs (lncRNAs) play vital roles in the metastasis and invasion of cancer cells. Systematic analysis of ovarian cancer (OvCa) expression profiles suggests that deregulation of lncRNA AC004988.1, designated promoting transition-associated lncRNA (PTAL), is involved in OvCa progression. However, the underlying mechanism of PTAL in OvCa remains unknown. In this study, we showed that PTAL was significantly upregulated in mesenchymal subtype samples compared with epithelial subtype samples from TCGA serous OvCa datasets. PTAL expression was positively correlated with the expression of fibronectin1 (FN1), whereas PTAL and FN1 were negatively correlated with miR-101 expression in the mesenchymal OvCa samples. In addition, knockdown of PTAL inhibited cell migration and invasion and blunted the progression of metastasis in vitro. Meanwhile, knockdown of PTAL increased the expression of miR-101 and subsequently inhibited the expression of FN1. Importantly, PTAL positively regulated the expression of FN1 through sponging of miR-101 and promoted OvCa cell metastasis by regulating epithelial-mesenchymal transition. Overall, our study demonstrates the role of PTAL as a miRNA sponge in OvCa and suggests that PTAL may be a potential target for preventing OvCa metastasis.
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Affiliation(s)
- Haihai Liang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Mengxue Yu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Rui Yang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Lu Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Lijia Zhang
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Di Zhu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Hongwei Luo
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yaozhen Hong
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Tong Yu
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Jian Sun
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Hongli Shan
- Department of Pharmacology (State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Key Laboratory of Cardiovascular Research, Ministry of Education), College of Pharmacy, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China.,Translational Medicine Research and Cooperation Center of Northern China, Heilongjiang Academy of Medical Sciences, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Yunyan Gu
- Department of Systems Biology, College of Bioinformatics Science and Technology, Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
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10
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Ma J, Xiao Y, Tian B, Chen S, Zhang B, Wu J, Wu Z, Li X, Tang J, Yang D, Zhou Y, Wang H, Su M, Wang W. Long noncoding RNA lnc-ABCA12-3 promotes cell migration, invasion, and proliferation by regulating fibronectin 1 in esophageal squamous cell carcinoma. J Cell Biochem 2019; 121:1374-1387. [PMID: 31512786 DOI: 10.1002/jcb.29373] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 08/20/2019] [Indexed: 12/16/2022]
Abstract
Long noncoding RNAs (lncRNAs) have been shown to play important roles in human cancers, including esophageal squamous cell carcinoma (ESCC). We previously demonstrated that a novel lncRNA, lnc-ABCA12-3, was overexpressed in ESCC tissues. However, the exact function of lnc-ABCA12-3 is unknown. In the current study, we aimed to evaluate the expression of lnc-ABCA12-3 in ESCC and to explore the potential mechanism of lnc-ABCA12-3 in cell migration, invasion, and proliferation. We showed that lnc-ABCA12-3 was upregulated in ESCC tumor tissues and cell lines. The increased expression of lnc-ABCA12-3 was positively associated with advanced tumor-node-metastasis stages and poor prognosis. The knockdown of lnc-ABCA12-3 inhibited the cell migration, invasion, and proliferation abilities of KYSE-510 and Eca-109 cells. We also found that fibronectin 1 (FN1) was upregulated in ESCC tumor tissues. The expression of FN1 messenger RNA was positively correlated with the expression of lnc-ABCA12-3 in ESCC tumor tissues. After lnc-ABCA12-3 knockdown, the expression of FN1 was downregulated. In addition, the overexpression of FN1 restored the abilities of cell migration, invasion and proliferation in Eca-109 cells. Further studies indicated that lnc-ABCA12-3 acted as a competing endogenous RNA for miR-200b-3p to regulate FN1 expression. In conclusion, these results suggest that lnc-ABCA12-3 is a novel oncogene in tumorigenesis and that its high expression is related to a poor prognosis for patients with ESCC. lnc-ABCA12-3 promotes cell migration, invasion, and proliferation via the regulation of FN1 in ESCC. Our data suggest that lnc-ABCA12-3 might serve as a potential prognostic biomarker and therapeutic target for ESCC.
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Affiliation(s)
- Junliang Ma
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Yuhang Xiao
- Department of Pharmacy, Xiangya Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Bo Tian
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Shaolin Chen
- Department of Thoracic Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, Guizhou, China
| | - Baihua Zhang
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jie Wu
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Zhining Wu
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Xu Li
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Jinming Tang
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Desong Yang
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Yong Zhou
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Hui Wang
- Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Min Su
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
| | - Wenxiang Wang
- The Second Department of Thoracic Surgery, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China.,Hunan Key Laboratory of Translational Radiation Oncology, Hunan Cancer Hospital and The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, Hunan, China
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11
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Zhou Y, Shu C, Huang Y. Fibronectin promotes cervical cancer tumorigenesis through activating FAK signaling pathway. J Cell Biochem 2019; 120:10988-10997. [PMID: 30977220 DOI: 10.1002/jcb.28282] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Accepted: 10/24/2018] [Indexed: 01/24/2023]
Abstract
Cervical cancer is a cancer arising from the cervix, and it is the fourth most common cause of death in women. Overexpression of fibronectin 1 (FN1) was observed in many tumors and associated with the survival and metastasis of cancer cells. However, the mechanism by which FN1 promotes cervical cancer cell viability, migration, adhesion, and invasion, and inhibits cell apoptosis through focal adhesion kinase (FAK) signaling pathway remains to be investigated. Our results demonstrated that FN1 was upregulated in patients with cervical cancer and higher FN1 expression correlated with a poor prognosis for patients with cervical cancer. FN1 knockdown by small interfering RNA (siRNA) inhibited SiHa cell viability, migration, invasion, and adhesion, and promoted cell apoptosis. FN1 overexpression in CaSki cell promoted cell viability, migration, invasion, and adhesion, and inhibited cell apoptosis. Further, phosphorylation of FAK, a main downstream signaling molecule of FN1, and the protein expression of Bcl-2/Bax, matrix metalloproteinase 2 (MMP-2), matrix metalloproteinase 9 (MMP-9), and N-cadherin was upregulated in CaSki cells with FN1 overexpression, but caspase-3 protein expression was downregulated. The FAK phosphorylation inhibitor PF573228 inhibited FN1 overexpression-induced expression of those proteins in CaSki cells with FN1 overexpression. In vivo experiment demonstrated that FN1 knockdown significantly inhibited FN1 expression, phosphorylation of FAK, and tumor growth in xenograft from the nude mice. These results suggest that FN1 regulates the viability, apoptosis, migration, invasion, and adhesion of cervical cancer cells through the FAK signaling pathway and is a potential therapeutic target in the treatment of cervical cancer.
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Affiliation(s)
- Yuzhen Zhou
- Department of Obstetrics and Gynecology, Suzhou Traditional Chinese and Western Medicine Hospital, Suzhou, China
| | - Changzhen Shu
- Department of Obstetrics and Gynecology, Suzhou Traditional Chinese and Western Medicine Hospital, Suzhou, China
| | - Yan Huang
- Department of Obstetrics and Gynecology, Suzhou Traditional Chinese and Western Medicine Hospital, Suzhou, China
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12
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Xiao J, Yang W, Xu B, Zhu H, Zou J, Su C, Rong J, Wang T, Chen Z. Expression of fibronectin in esophageal squamous cell carcinoma and its role in migration. BMC Cancer 2018; 18:976. [PMID: 30314454 PMCID: PMC6186055 DOI: 10.1186/s12885-018-4850-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 09/24/2018] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Fibronectin (FN) is a high-molecular-weight glycoprotein component of the extracellular matrix involved in cell adhesion, migration, metastasis, proliferation and differentiation, as well as embryogenesis, wound healing, and blood coagulation. Considerable recent research has established that tumor expression of FN is closely associated with tumor formation and development as well as disease prognosis. However, the mechanisms underlying this relationship have remained unclear. The aim of this study was to investigate FN protein expression in esophageal squamous cell carcinoma (ESCC) and determine its potential prognostic relevance, while also elucidating the source and function of FN. METHODS We conducted immunohistochemical analyses of protein expression in primary tumors of ESCC patients and analyzed their association with standard prognostic parameters and clinical outcomes. Expression of FN in two ESCC cell lines (Eca-109 and TE-1) was also examined by RT-PCR, immunofluorescence, and ELISA. ESCC cells were cultured in a microenvironment containing a high FN content, and changes in their morphology and migration ability were assessed by microscopy, wound-healing assays, and Transwell assays. RESULTS FN expression in ESCC specimens was mainly detected in the tumor stroma, with very little FN detected in tumor cells. Stromal FN content in ESCC specimens was associated with lymphatic metastasis (P = 0.032) and prognosis. In this latter context, patients with high tumor stromal expression of FN showed worse overall survival (P = 0.002) and progression-free survival (P < 0.001) than those with low expression of FN. Interestingly, FN expression and secretion in ESCC cell lines (Eca-109 and TE-1) was found to be low, but these cells adopted a more migratory phenotype when cultured in vitro in a microenvironment containing high levels of FN. CONCLUSIONS High FN expression in the stroma of ESCC tumors is closely associated with poor prognosis of patients. High stromal FN content facilitates tumor cell metastasis by promoting morphological changes and improving the motility and migratory ability of ESCC cells.
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Affiliation(s)
- Jiefei Xiao
- Department of Extracorporeal Circulation, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China.,Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, 510080, China
| | - Weilin Yang
- Department of Cardiothoracic Surgery of East Division, the First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Bo Xu
- Department of Cardiothoracic Surgery of East Division, the First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Road II, Guangzhou, 510080, Guangdong, China
| | - Haoshuai Zhu
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Road II, Guangzhou, 510080, Guangdong, China.,Lung Cancer Research Center of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Jianyong Zou
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Road II, Guangzhou, 510080, Guangdong, China.,Lung Cancer Research Center of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Chunhua Su
- Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Road II, Guangzhou, 510080, Guangdong, China.,Lung Cancer Research Center of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Jian Rong
- Department of Extracorporeal Circulation, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China.,Key Laboratory on Assisted Circulation, Ministry of Health, Guangzhou, 510080, China
| | - Tao Wang
- Center for Stem Cell Biology and Tissue Engineering, Sun Yat-sen University, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Guangzhou, 510080, Guangdong, China. .,Department of Biochemistry, Zhongshan Medical School, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China.
| | - Zhenguang Chen
- Department of Cardiothoracic Surgery of East Division, the First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Road II, Guangzhou, 510080, Guangdong, China. .,Department of Thoracic Surgery, the First Affiliated Hospital, Sun Yat-sen University, No. 58, Zhongshan Road II, Guangzhou, 510080, Guangdong, China. .,Lung Cancer Research Center of Sun Yat-sen University, Guangzhou, 510080, Guangdong, China.
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13
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Belyanina IV, Zamay TN, Zamay GS, Zamay SS, Kolovskaya OS, Ivanchenko TI, Denisenko VV, Kirichenko AK, Glazyrin YE, Garanzha IV, Grigorieva VV, Shabanov AV, Veprintsev DV, Sokolov AE, Sadovskii VM, Gargaun A, Berezovski MV, Kichkailo AS. In Vivo Cancer Cells Elimination Guided by Aptamer-Functionalized Gold-Coated Magnetic Nanoparticles and Controlled with Low Frequency Alternating Magnetic Field. Am J Cancer Res 2017; 7:3326-3337. [PMID: 28900513 PMCID: PMC5595135 DOI: 10.7150/thno.17089] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 05/29/2017] [Indexed: 12/22/2022] Open
Abstract
Biomedical applications of magnetic nanoparticles under the influence of a magnetic field have been proved useful beyond expectations in cancer therapy. Magnetic nanoparticles are effective heat mediators, drug nanocarriers, and contrast agents; various strategies have been suggested to selectively target tumor cancer cells. Our study presents magnetodynamic nanotherapy using DNA aptamer-functionalized 50 nm gold-coated magnetic nanoparticles exposed to a low frequency alternating magnetic field for selective elimination of tumor cells in vivo. The cell specific DNA aptamer AS-14 binds to the fibronectin protein in Ehrlich carcinoma hence helps deliver the gold-coated magnetic nanoparticles to the mouse tumor. Applying an alternating magnetic field of 50 Hz at the tumor site causes the nanoparticles to oscillate and pull the fibronectin proteins and integrins to the surface of the cell membrane. This results in apoptosis followed by necrosis of tumor cells without heating the tumor, adjacent healthy cells and tissues. The aptamer-guided nanoparticles and the low frequency alternating magnetic field demonstrates a unique non-invasive nanoscalpel technology for precise cancer surgery at the single cell level.
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14
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Zhang H, Sun Z, Li Y, Fan D, Jiang H. MicroRNA-200c binding to FN1 suppresses the proliferation, migration and invasion of gastric cancer cells. Biomed Pharmacother 2017; 88:285-292. [PMID: 28113080 DOI: 10.1016/j.biopha.2017.01.023] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 12/23/2016] [Accepted: 01/03/2017] [Indexed: 02/07/2023] Open
Abstract
We aimed to investigate the effects of miR-200c binding to fibronectin 1 (FN1) on proliferation, migration and invasion of gastric cancer (GC) cells. A total of 52 GC tissues and their corresponding normal adjacent tissue samples were collected. Then, miR-200c and FN1 were tested using quantitative real-time RT-PCR in the clinical specimens and GC cells, while immunohistochemistry and western blotting assay were carried out to detect FN1 expressions. Dual luciferase reporter gene assay was used to assess the effect of miR-200c on the luciferase activity of FN1 3'UTR. BGC-823 cells were transfected with miR-200c mimics, miR-200c inhibitors and FN1 siRNA, respectively. The effects of miR-200c inhibitors and FN1 siRNA on cellular proliferation, migration and invasion were detected through MTT assay and Transwell assay. Compared to normal tissues and cells, miR-200c was significantly down-regulated and FN1 was significantly up-regulated (P<0.01). Dual luciferase reporter gene assay showed that miR-200c could specifically bind to the 3'-UTR of FN1 and significantly repress the luciferase activity (P<0.01). Both mRNA and protein expressions of FN1 were decreased significantly in GC cells when miR-200c was over expressed. The proliferation, migration and invasion of GC cells could be suppressed by over-expression of miR-200c or down-regulation of FN1. In conclusion, miR-200c was significantly down-regulated in both GC tissues and cell lines, while FN1 presented the opposite trends. Besides, miR-200c inhibited the proliferation, migration and invasion of GC cells through binding to FN1.
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Affiliation(s)
- Hengchun Zhang
- Department of General Surgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, China
| | - Zhiguo Sun
- Department of General Surgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, China
| | - Yan Li
- Department of General Surgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, China
| | - Dong Fan
- Department of General Surgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, China
| | - Hao Jiang
- Department of General Surgery, Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, Heilongjiang, 157011, China.
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15
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Hsia TC, Yin MC, Mong MC. Advanced Glycation End-Products Enhance Lung Cancer Cell Invasion and Migration. Int J Mol Sci 2016; 17:ijms17081289. [PMID: 27517907 PMCID: PMC5000686 DOI: 10.3390/ijms17081289] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 08/02/2016] [Accepted: 08/04/2016] [Indexed: 12/23/2022] Open
Abstract
Effects of carboxymethyllysine (CML) and pentosidine, two advanced glycation end-products (AGEs), upon invasion and migration in A549 and Calu-6 cells, two non-small cell lung cancer (NSCLC) cell lines were examined. CML or pentosidine at 1, 2, 4, 8 or 16 μmol/L were added into cells. Proliferation, invasion and migration were measured. CML or pentosidine at 4-16 μmol/L promoted invasion and migration in both cell lines, and increased the production of reactive oxygen species, tumor necrosis factor-α, interleukin-6 and transforming growth factor-β1. CML or pentosidine at 2-16 μmol/L up-regulated the protein expression of AGE receptor, p47(phox), intercellular adhesion molecule-1 and fibronectin in test NSCLC cells. Matrix metalloproteinase-2 protein expression in A549 and Calu-6 cells was increased by CML or pentosidine at 4-16 μmol/L. These two AGEs at 2-16 μmol/L enhanced nuclear factor κ-B (NF-κ B) p65 protein expression and p38 phosphorylation in A549 cells. However, CML or pentosidine at 4-16 μmol/L up-regulated NF-κB p65 and p-p38 protein expression in Calu-6 cells. These findings suggest that CML and pentosidine, by promoting the invasion, migration and production of associated factors, benefit NSCLC metastasis.
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Affiliation(s)
- Te-Chun Hsia
- Department of Respiratory Therapy, China Medical University, 40402 Taichung City, Taiwan.
- Department of Internal Medicine, China Medical University Hospital, 40402 Taichung City, Taiwan.
| | - Mei-Chin Yin
- Department of Nutrition, China Medical University, 40402 Taichung City, Taiwan.
- Department of Health and Nutrition Biotechnology, Asia University, 41354 Taichung City, Taiwan.
| | - Mei-Chin Mong
- Department of Health and Nutrition Biotechnology, Asia University, 41354 Taichung City, Taiwan.
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16
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Silibinin inhibits triple negative breast cancer cell motility by suppressing TGF-β2 expression. Tumour Biol 2016; 37:11397-407. [PMID: 26984157 DOI: 10.1007/s13277-016-5000-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2015] [Accepted: 02/25/2016] [Indexed: 12/31/2022] Open
Abstract
Transforming growth factor-beta (TGF-β) is a multifunctional cytokine that regulates many biological events including cell motility and angiogenesis. Here, we investigated the role of elevated TGF-β2 level in triple negative breast cancer (TNBC) cells and the inhibitory effect of silibinin on TGF-β2 action in TNBC cells. Breast cancer patients with high TGF-β2 expression have a poor prognosis. The levels of TGF-β2 expression increased significantly in TNBC cells compared with those in non-TNBC cells. In addition, cell motility-related genes such as fibronectin (FN) and matrix metalloproteinase-2 (MMP-2) expression also increased in TNBC cells. Basal FN, MMP-2, and MMP-9 expression levels decreased in response to LY2109761, a dual TGF-β receptor I/II inhibitor, in TNBC cells. TNBC cell migration also decreased in response to LY2109761. Furthermore, we observed that TGF-β2 augmented the FN, MMP-2, and MMP-9 expression levels in a time- and dose-dependent manner. In contrast, TGF-β2-induced FN, MMP-2, and MMP-9 expression levels decreased significantly in response to LY2109761. Interestingly, we found that silibinin decreased TGF-β2 mRNA expression level but not that of TGF-β1 in TNBC cells. Cell migration as well as basal FN and MMP-2 expression levels decreased in response to silibinin. Furthermore, silibinin significantly decreased TGF-β2-induced FN, MMP-2, and MMP-9 expression levels and suppressed the lung metastasis of TNBC cells. Taken together, these results suggest that silibinin suppresses metastatic potential of TNBC cells by inhibiting TGF-β2 expression in TNBC cells. Thus, silibinin may be a promising therapeutic drug to treat TNBC.
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17
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Cho A, Howell VM, Colvin EK. The Extracellular Matrix in Epithelial Ovarian Cancer - A Piece of a Puzzle. Front Oncol 2015; 5:245. [PMID: 26579497 PMCID: PMC4629462 DOI: 10.3389/fonc.2015.00245] [Citation(s) in RCA: 87] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2015] [Accepted: 10/15/2015] [Indexed: 02/04/2023] Open
Abstract
Epithelial ovarian cancer is the fifth leading cause of cancer-related deaths in women and the most lethal gynecological malignancy. Extracellular matrix (ECM) is an integral component of both the normal and tumor microenvironment. ECM composition varies between tissues and is crucial for maintaining normal function and homeostasis. Dysregulation and aberrant deposition or loss of ECM components is implicated in ovarian cancer progression. The mechanisms by which tumor cells induce ECM remodeling to promote a malignant phenotype are yet to be elucidated. A thorough understanding of the role of the ECM in ovarian cancer is needed for the development of effective biomarkers and new therapies.
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Affiliation(s)
- Angela Cho
- School of Medical and Molecular Biosciences, University of Technology Sydney, Sydney, NSW, Australia
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, Northern Sydney Local Health District, St. Leonards, NSW, Australia
| | - Viive M. Howell
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, Northern Sydney Local Health District, St. Leonards, NSW, Australia
- Sydney Medical School Northern, University of Sydney, Sydney, NSW, Australia
| | - Emily K. Colvin
- Bill Walsh Translational Cancer Research Laboratory, Kolling Institute, Northern Sydney Local Health District, St. Leonards, NSW, Australia
- Sydney Medical School Northern, University of Sydney, Sydney, NSW, Australia
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18
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Morita Y, Hata K, Nakanishi M, Omata T, Morita N, Yura Y, Nishimura R, Yoneda T. Cellular fibronectin 1 promotes VEGF-C expression, lymphangiogenesis and lymph node metastasis associated with human oral squamous cell carcinoma. Clin Exp Metastasis 2015; 32:739-53. [PMID: 26319373 DOI: 10.1007/s10585-015-9741-2] [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: 03/04/2015] [Accepted: 08/22/2015] [Indexed: 12/23/2022]
Abstract
Lymph node metastasis (LNM) is associated with poor survival in patients with oral squamous cell carcinoma (OSCC). Vascular endothelial growth factor-C (VEGF-C) is thought to be responsible for increased lymphangiogenesis and LNM. Understanding of the mechanism by which VEGF-C expression is regulated in OSCC is thus important to design logic therapeutic interventions. We showed that inoculation of the SAS human OSCC cells expressing the venus GFP (V-SAS cells) into the tongue in nude mice developed LNM. V-SAS cells in LNM were isolated by FACS and re-inoculated into the tongue. This procedure was repeated eight times, establishing V-SAS-LM8 cells. Differential metastasis PCR array between the parental V-SAS and V-SAS-LM8 was performed to identify a molecule responsible for lymphangiogenesis and LNM. Fibronectin 1 (FN1) expression was elevated in V-SAS-LM8 cells compared to V-SAS-cells. V-SAS-LM8 tongue tumor showed increased expression of FN1 and VEGF-C, and promoted lymphangiogenesis and LNM compared with V-SAS tumor. Further, phosphorylation of focal adhesion kinase (FAK), a main downstream signaling molecule of FN1, was up-regulated, and epithelial-mesenchymal transition (EMT) was promoted in V-SAS-LM8 cells. Silencing of FN1 by shRNA in V-SAS-LM8 cells decreased FAK phosphorylation, VEGF-C expression and inhibited lymphangiogenesis and LNM. EMT was also reversed. The FAK phosphorylation inhibitor PF573228 also decreased VEGF-C expression and reversed EMT in V-SAS-LM8 cells. Finally, we detected intense FN1 expression in some clinical specimens obtained from OSCC patients with LNM. These results demonstrate that elevated expression of cellular FN1 and following activation of FAK lead to increased VEGF-C expression, lymphangiogenesis and LNM and promoted EMT in SAS human OSCC cells and suggest that FN1-phosphorylated FAK signaling cascade is a potential therapeutic target in the treatment of LNM in OSCC.
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Affiliation(s)
- Yoshihiro Morita
- Departments of Molecular and Cellular Biochemistry, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan.,Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan.,Department of Oral and Maxillofacial Surgery, Seichokai Hannan Municipal Hospital, Hannan, Osaka, Japan
| | - Kenji Hata
- Departments of Molecular and Cellular Biochemistry, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - Masako Nakanishi
- Departments of Molecular and Cellular Biochemistry, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - Tetsuji Omata
- Department of Oral and Maxillofacial Surgery, Kinan Hospital, Tanabe, Wakayama, Japan
| | - Nobuo Morita
- Department of Oral and Maxillofacial Surgery, Seichokai Hannan Municipal Hospital, Hannan, Osaka, Japan.,Department of Oral and Maxillofacial Surgery, Kinan Hospital, Tanabe, Wakayama, Japan.,Department of Oral-Maxillo-facial Surgery, NS Medical & Healthcare Service General Incorporation Foundation, Wakayama, Japan
| | - Yoshiaki Yura
- Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - Riko Nishimura
- Departments of Molecular and Cellular Biochemistry, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan
| | - Toshiyuki Yoneda
- Departments of Molecular and Cellular Biochemistry, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan. .,Division of Hematology/Oncology, Department of Medicine, Indiana University School of Medicine, Walther Hall, R3-C321D, 980 W Walnut St, Indianapolis, IN, 46202, USA.
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Hu J, Boeri M, Sozzi G, Liu D, Marchianò A, Roz L, Pelosi G, Gatter K, Pastorino U, Pezzella F. Gene Signatures Stratify Computed Tomography Screening Detected Lung Cancer in High-Risk Populations. EBioMedicine 2015; 2:831-40. [PMID: 26425689 PMCID: PMC4563137 DOI: 10.1016/j.ebiom.2015.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2015] [Revised: 06/29/2015] [Accepted: 07/01/2015] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Although screening programmes of smokers have detected resectable early lung cancers more frequently than expected, their efficacy in reducing mortality remains debatable. To elucidate the biological features of computed tomography (CT) screening detected lung cancer, we examined the mRNA signatures on tumours according to the year of detection, stage and survival. METHODS Gene expression profiles were analysed on 28 patients (INT-IEO training cohort) and 24 patients of Multicentre Italian Lung Detection (MILD validation cohort). The gene signatures generated from the training set were validated on the MILD set and a public deposited DNA microarray data set (GSE11969). Expression of selected genes and proteins was validated by real-time RT-PCR and immunohistochemistry. Enriched core pathway and pathway networks were explored by GeneSpring GX10. FINDINGS A 239-gene signature was identified according to the year of tumour detection in the training INT-IEO set and correlated with the patients' outcomes. These signatures divided the MILD patients into two distinct survival groups independently of tumour stage, size, histopathological type and screening year. The signatures can also predict survival in the clinically detected cancers (GSE11969). Pathway analyses revealed tumours detected in later years enrichment of the PI3K/PTEN/AKT pathway, with up-regulation of PDPK1, ITGB1 and down-regulation of FOXO1A. Analysis of normal lung tissue from INT-IEO cohort produced signatures distinguishing patients with early from late detected tumours. INTERPRETATION The distinct pattern of "indolent" and "aggressive" tumour exists in CT-screening detected lung cancer according to the gene expression profiles. The early development of an aggressive phenotype may account for the lack of mortality reduction by screening observed in some cohorts.
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Affiliation(s)
- Jiangting Hu
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, United Kingdom
| | | | | | - Dongxia Liu
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, United Kingdom
| | - Alfonso Marchianò
- Division of Radiology, Milan, Italy ; Medical Statistics and Bioinformatics Unit, Milan, Italy
| | - Luca Roz
- Tumor Genomics Unit, Milan, Italy
| | - Giuseppe Pelosi
- Pathology Unit, Fondazione IRCCS Istituto Nazionale dei Tumori, Milan, Italy
| | - Kevin Gatter
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, United Kingdom
| | | | - Francesco Pezzella
- Nuffield Division of Clinical Laboratory Sciences, Radcliffe Department of Medicine, University of Oxford, John Radcliffe Hospital, United Kingdom
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Jeon M, Lee J, Nam SJ, Shin I, Lee JE, Kim S. Induction of fibronectin by HER2 overexpression triggers adhesion and invasion of breast cancer cells. Exp Cell Res 2015; 333:116-26. [PMID: 25743092 DOI: 10.1016/j.yexcr.2015.02.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2014] [Revised: 02/13/2015] [Accepted: 02/22/2015] [Indexed: 12/15/2022]
Abstract
Fibronectin (FN), an extracellular matrix ligand, plays a pivotal role in cell adhesion, migration, and oncogenic transformation. Aberrant FN expression is associated with poor prognoses in various types of cancer, including breast cancer. In the current study, we investigated the relationship between FN induction and HER2 expression in breast cancer cells. Our results showed that the level of FN expression increased in response to HER family ligands, EGF and TGF-α in a time- and dose-dependent manner. On the other hand, EGF-induced FN expression decreased in response to trastuzumab, which is a HER2-targeted monoclonal antibody. However, EGF-induced FN expression was not affected by trastuzumab in JIMT-1 breast cancer cells, which are trastuzumab insensitive cells. Next, we introduced the HER2 gene into MDA-MB231 cells to verify the relationship between FN and HER2. The level of FN expression significantly increased in HER2-overexpressed MDA-MB231 cells. In contrast, the induction of FN by HER2 was significantly decreased in response to trastuzumab treatment. In addition, the induction of FN by HER2 was down-regulated by the MEK 1/2 specific inhibitor, U0126. Using conditioned culture media of vec- and HER2-overexpressed MDA-MB231 cells, we observed the cell morphology, adhesion, and invasion of MDA-MB231 cells. Interestingly, in conditioned culture media of HER2-overexpressed MDA-MB231 cells, the cell morphology was altered, and adhesion and invasion of MDA-MB231 cells significantly increased. In addition, our results showed that recombinant human FN augmented cell adhesion and invasion of MDA-MB231 cells while these inductions decreased in response to an FN inhibitor. Therefore, we demonstrated that the induction of FN by HER2 triggers cell adhesion and invasion capacities.
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Affiliation(s)
- Myeongjin Jeon
- Department of Surgery, Samsung Medical Center, 50 Irwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea; Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, 50 Irwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - Jeongmin Lee
- Department of Surgery, Samsung Medical Center, 50 Irwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - S J Nam
- Department of Surgery, Samsung Medical Center, 50 Irwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea
| | - Incheol Shin
- Department of Life Science, Hanyang University, Seoul 133-791, Republic of Korea
| | - J E Lee
- Department of Surgery, Samsung Medical Center, 50 Irwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea; Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, 50 Irwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea.
| | - Sangmin Kim
- Department of Surgery, Samsung Medical Center, 50 Irwon-dong, Gangnam-gu, Seoul 135-710, Republic of Korea.
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21
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Silva CAB, Nardello LCL, Garcia FW, Araújo NSD, Montalli VA, Araújo VCD, Martinez EF. The role of FGF-2/HGF and fibronectin matrix on pleomorphic adenoma myoepithelial cell morphology and immunophenotype: an in vitro study. Growth Factors 2015; 33:50-6. [PMID: 25257141 DOI: 10.3109/08977194.2014.957758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Myoepithelial cells play a central role in glandular tumors, regulating the progression of in situ to invasive neoplasias, with the tumor microenvironment being shown to be involved in both initiation and progression. This study aimed to analyze the in vitro effects of fibroblast growth factor-2 (FGF-2) and hepatocyte growth factor (HGF) in myoepithelial cells under the influence of the fibronectin matrix extracellular protein. Benign myoepithelial cells were obtained from pleomorphic adenoma and cultured on a fibronectin substratum. FGF-2 and HGF were supplemented at different concentrations and time intervals, in order to evaluate cell proliferation, morphology and immunophenotype. Individually, FGF-2 and HGF supplementation did not alter myoepithelial cell proliferation, morphology or immunophenotype. The fibronectin substratum provoked an increase in cell proliferation and immunopositivity for α-smooth muscle actin and FGF-2. The myoepithelial cell morphology changed when the fibronectin substratum and FGF-2 acted together, highlighting the importance of the fibronectin extracellular matrix protein on the behavior of these cells.
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Tsao SM, Hsia TC, Yin MC. Protocatechuic acid inhibits lung cancer cells by modulating FAK, MAPK, and NF-κB pathways. Nutr Cancer 2014; 66:1331-41. [PMID: 25356681 DOI: 10.1080/01635581.2014.956259] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Cytotoxic effects of protocatechuic acid (PCA) upon 3 nonsmall cell lung cancer (NSCLC) cell lines, A549, H3255, and Calu-6 cell lines, were examined. PCA at 1, 2, 4, and 8 μM was used to treat these cells. Results showed that PCA dose-dependently reduced cell growth; and at 2-8 μM enhanced protein expression of Bax and cleaved caspase-3; as well as diminished Bcl-2 expression. This compound destabilized mitochondrial membrane via increasing caspase-3 activity, decreasing mitochondrial membrane potential and Na(+)-K(+)-ATPase activity in these cells. PCA treatments dose-dependently decreased protein expression of vascular endothelial growth factor and fibronectin, as well as lowered interleukin (IL)-6 and IL-8 release; and at 2-8 μM suppressed protein expression of basic fibroblast growth factor, matrix metalloproteinase (MMP)-2 and MMP-9. Furthermore, PCA treatments dose-dependently downregulated nuclear factor kappa (NF-κ)B p50 and NF-κB p65 protein expression, and at 2-8 μM suppressed protein expression of p-p38, p-JNK, and p-focal adhesion kinase (FAK). Our data revealed that PCA declined FAK, mitogen-activated protein kinase, and NF-κB activation, which subsequently decreased the production of cytokines and growth factors, and consequently inhibited proliferation of 3 test NSCLC cells. These findings suggest that PCA could provide wide-ranging anti-NSCLC potency.
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Affiliation(s)
- Shih-ming Tsao
- a Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung City, Taiwan and Institute of Microbiology and Immunology , Chung Shan Medical University , Taichung City , Taiwan
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Yu IF, Yu YH, Chen LY, Fan SK, Chou HYE, Yang JT. A portable microfluidic device for the rapid diagnosis of cancer metastatic potential which is programmable for temperature and CO2. LAB ON A CHIP 2014; 14:3621-3628. [PMID: 25075570 DOI: 10.1039/c4lc00502c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
If metastasis of lung cancer can be found and treated early, a victim might have an improved chance to prevail over it, but routine examinations such as chest radiography, computed tomography and biopsy cannot characterize the metastatic potential of lung cancer cells; critical diagnoses to define optimal therapeutic strategies are thus lost. We designed a portable microfluidic device for the rapid diagnosis of cancer metastatic potential. Featuring a micro system to control temperature and a bicarbonate buffered environment, our device discriminates a rate of surface detachment as an index of the migratory ability of cells cultured on pH-responsive chitosan. We labeled metastatic subpopulations of lung cancer cell lines, and verified that our device is capable of separating cells according to their metastatic ability. As only few cells are needed, a patient's specimen from biopsies, e.g. from fine-needle aspiration, can be processed on site to offer immediate information to physicians. We expect that our design will provide valuable information in pre-operative evaluations to assist the definition of therapeutic plans for lung cancer, as well as for metastatic tumors of other types.
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Affiliation(s)
- I F Yu
- Department of Mechanical Engineering, College of Engineering, National Taiwan University, Taipei 106, Taiwan.
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Xu TP, Huang MD, Xia R, Liu XX, Sun M, Yin L, Chen WM, Han L, Zhang EB, Kong R, De W, Shu YQ. Decreased expression of the long non-coding RNA FENDRR is associated with poor prognosis in gastric cancer and FENDRR regulates gastric cancer cell metastasis by affecting fibronectin1 expression. J Hematol Oncol 2014; 7:63. [PMID: 25167886 PMCID: PMC4237812 DOI: 10.1186/s13045-014-0063-7] [Citation(s) in RCA: 216] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 08/19/2014] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND FENDRR is a long non-coding RNAs (lncRNA) that binds to polycomb repressive complexe 2 (PRC2) to epigenetically regulate the expression of its target gene. The clinical role of FENDRR in carcinomas remains yet to be found. METHOD Real-time polymerase chain reaction (PCR) was used to examine FENDRR expression in gastric cancer cell lines/tissues compared with normal epithelial cells/adjacent non-tumorous tissues. Cell proliferation assays, Wound healing assays, and in vitro and in vivo invasion and migration assays were performed to detect the biological effects of FENDRR in gastric cancer cells. Real-time PCR, western-blot and immunohistochemistry were used to evaluate the mRNA and protein expression of fibronectin1 (FN1). Secreted matrix metalloproteinase (MMP) activities were detected and characterized using gelatin zymography assay. RESULTS FENDRR was downregulated in gastric cancer cell lines and cancerous tissues, as compared with normal gastric epithelial cells and adjacent noncancerous tissue samples. Low FENDRR expression was correlated with deeper tumor invasion (p < 0.001), higher tumor stage (p = 0.001), and lymphatic metastasis (p = 0.007). Univariate and multivariate analyses indicated that low FENDRR expression predicted poor prognosis. Histone deacetylation was involved in the downregulation of FENDRR in gastric cancer cells. FENDER overexpression suppressed invasion and migration by gastric cancer cells in vitro, by downregulating FN1 and MMP2/MMP9 expression. CONCLUSION Low expression of the lncRNA FENDRR occurs in gastric cancer and is associated with poor prognosis. Thus, FENDRR plays an important role in the progression and metastasis of gastric cancer.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Yong-Qian Shu
- Department of Oncology, the First Affiliated Hospital of Nanjing Medical University, No, 300 Guangzhou Road, Nanjing 210029, Jiangsu Province, People's Republic of China.
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KIM SANGMIN, JEON MYEONGJIN, LEE JEONGMIN, HAN JEONGHUN, OH SOOJIN, JUNG TAEWOO, NAM SEOKJIN, KIL WONHO, LEE JEONGEON. Induction of fibronectin in response to epidermal growth factor is suppressed by silibinin through the inhibition of STAT3 in triple negative breast cancer cells. Oncol Rep 2014; 32:2230-6. [DOI: 10.3892/or.2014.3450] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Accepted: 07/02/2014] [Indexed: 11/06/2022] Open
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JK1 (FAM134B) represses cell migration in colon cancer: a functional study of a novel gene. Exp Mol Pathol 2014; 97:99-104. [DOI: 10.1016/j.yexmp.2014.06.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2014] [Accepted: 06/09/2014] [Indexed: 11/22/2022]
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Mennecier G, Torres LN, Cogliati B, Sanches DS, Mori CM, Latorre AO, Chaible LM, Mackowiak II, Nagamine MK, Da Silva TC, Fukumasu H, Dagli MLZ. Chronic exposure of lung alveolar epithelial type II cells to tobacco-specific carcinogen NNK results in malignant transformation: a new in vitro lung carcinogenesis model. Mol Carcinog 2014; 53:392-402. [PMID: 23203541 DOI: 10.1002/mc.21987] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2012] [Accepted: 11/05/2012] [Indexed: 01/03/2023]
Abstract
Lung cancer is the leading cause of cancer-related mortality in both men and women throughout the world. This disease is strongly associated with tobacco smoking. The aim of this manuscript was to establish an in vitro model that mimics the chronic exposures of alveolar epithelial type II cells to the tobacco-specific nitrosamine carcinogen, NNK. Immortalized non-neoplastic alveolar epithelial cells type II, (E10 cells), from BALB/c mice were exposed to low concentration of NNK (100 pM) during 5, 10, 15, and 20 cycles of 48 h. NNK-transformed cells showed an increase of proliferation rate and motility. Moreover, these cells underwent epithelial-to-mesenchymal transition (EMT). Increased migratory capacity and EMT were correlated to the time of exposure to NNK. NNK-transformed cells were tested for their growth and metastatic capacity in vivo. Subcutaneous injection of cells exposed to NNK for 20 cycles (E10-NNK20 clone) into BALB/c mice led to the formation of subcutaneous tumors that arose after 40 ± 17 d in all animals, which died 95 ± 18 d after cell inoculation, with lymph nodes and lung metastasis. The morphological characteristics of tumors were compatible with metastatic undifferentiated carcinoma. Cells exposed to NNK for 5-10 cycles did not display metastatic capacity, while those exposed for 15 cycles displayed low capacity. Our results show that prolonged exposures to NNK led the cells to increasingly acquire malignant properties. The cellular model presented in this study is suitable for studying the molecular events involved in the different stages of malignant transformation.
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Affiliation(s)
- Gregory Mennecier
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, São Paulo, SP, Brazil
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Fernandez-Garcia B, Eiró N, Marín L, González-Reyes S, González LO, Lamelas ML, Vizoso FJ. Expression and prognostic significance of fibronectin and matrix metalloproteases in breast cancer metastasis. Histopathology 2013; 64:512-22. [PMID: 24117661 DOI: 10.1111/his.12300] [Citation(s) in RCA: 110] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Accepted: 09/26/2013] [Indexed: 12/11/2022]
Abstract
AIMS Fibronectin (FN) has attracted interest in cancer research, owing to its role in tumour progression. The aims of this study were to investigate the expression and clinical relevance of FN in breast cancer, and to explore its relationship with the expression of matrix metalloproteases (MMPs) and their inhibitors (TIMPs). METHODS AND RESULTS An immunohistochemical study was performed using tumours from 110 breast cancer patients, with tissue arrays and specific antibodies against FN, MMP-7, MMP-9, MMP-11, TIMP-1, and TIMP-2. The results indicated that FN expression was related to tumour size, histological grade, and MMP-9 expression. Tumours with high FN expression by tumour cells were significantly associated with a higher probability of metastasis, poorer overall survival, and expression of MMP-7, MMP-9, MMP-11, TIMP-1 and TIMP-2 by mononuclear inflammatory cells (MICs). In addition, the combination of FN expression by tumour cells and MMP-11 by MICs was strongly associated with distant metastasis development. CONCLUSIONS Breast carcinomas with distant metastasis frequently have tumour cells expressing intracellular FN. There is a strong association between FN expression by tumour cells and MMP or TIMP expression by stromal MICs, and this may represent crosstalk that is of prognostic relevance in breast cancer.
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Losino N, Waisman A, Solari C, Luzzani C, Espinosa DF, Sassone A, Muro AF, Miriuka S, Sevlever G, Barañao L, Guberman A. EDA-containing fibronectin increases proliferation of embryonic stem cells. PLoS One 2013; 8:e80681. [PMID: 24244705 PMCID: PMC3828241 DOI: 10.1371/journal.pone.0080681] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Accepted: 10/04/2013] [Indexed: 01/02/2023] Open
Abstract
Embryonic stem cells (ESC) need a set of specific factors to be propagated. They can also grow in conditioned medium (CM) derived from a bovine granulosa cell line BGC (BGC-CM), a medium that not only preserves their main features but also increases ESC´s proliferation rate. The mitogenic properties of this medium were previously reported, ascribing this effect to an alternative spliced generated fibronectin isoform that contains the extra domain A (FN EDA+). Here, we investigated if the FN EDA+ isoform increased proliferation of mouse and human ES cells. We analyzed cell proliferation using conditioned media produced by different mouse embryonic fibroblast (MEF) lines genetically engineered to express FN constitutively including or excluding the EDA domain (FN EDA-), and in media supplemented with recombinant peptides containing or not the EDA. We found that the presence of EDA in the medium increased mouse and human ESC’s proliferation rate. Here we showed for the first time that this FN isoform enhances ESC’s proliferation. These findings suggest a possible conserved behavior for regulation of ES cells proliferation by this FN isoform and could contribute to improve their culturing conditions both for research and cell therapy.
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Affiliation(s)
- Noelia Losino
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
- Instituto de Química Biológica - Ciencias Exactas y Naturales (IQUIBICEN), UBA/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad de Buenos Aires, Argentina
| | - Ariel Waisman
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
- Instituto de Química Biológica - Ciencias Exactas y Naturales (IQUIBICEN), UBA/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad de Buenos Aires, Argentina
| | - Claudia Solari
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
- Instituto de Química Biológica - Ciencias Exactas y Naturales (IQUIBICEN), UBA/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad de Buenos Aires, Argentina
| | - Carlos Luzzani
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
- Instituto de Química Biológica - Ciencias Exactas y Naturales (IQUIBICEN), UBA/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad de Buenos Aires, Argentina
| | - Darío Fernández Espinosa
- Laboratorio de Biología del Desarrollo Celular, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Alina Sassone
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
| | - Andrés F. Muro
- International Centre for Genetic Engineering and Biotechnology, Trieste, Italy
| | - Santiago Miriuka
- Laboratorio de Biología del Desarrollo Celular, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Gustavo Sevlever
- Laboratorio de Biología del Desarrollo Celular, Fundación para la Lucha contra las Enfermedades Neurológicas de la Infancia (FLENI), Buenos Aires, Argentina
| | - Lino Barañao
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
- Instituto de Química Biológica - Ciencias Exactas y Naturales (IQUIBICEN), UBA/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad de Buenos Aires, Argentina
| | - Alejandra Guberman
- Laboratorio de Regulación Génica en Células Madre, Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires (UBA), Ciudad de Buenos Aires, Argentina
- Instituto de Química Biológica - Ciencias Exactas y Naturales (IQUIBICEN), UBA/Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Ciudad de Buenos Aires, Argentina
- Departamento de Fisiología y Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad de Buenos Aires, Argentina
- * E-mail:
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Yousif NG. Fibronectin promotes migration and invasion of ovarian cancer cells through up-regulation of FAK-PI3K/Akt pathway. Cell Biol Int 2013; 38:85-91. [PMID: 24115647 DOI: 10.1002/cbin.10184] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Accepted: 08/11/2013] [Indexed: 12/11/2022]
Abstract
Ovarian cancer is the leading cause of death from gynecological malignancy, and the fourth most common cause of cancer death among American women. This study investigates the mechanism of fibronectin (FN) in stimulating ovarian cancer cell migration and invasion through up-regulation of focal adhesion kinase (FAK) pathway. Human ovarian cancer cells (OVCAR-3, A2780/CP70) were cultured and treated with fibronectin (10 µg/mL). Trans-well plates were used to conduct the migration assay, real-time RT-PCR for FAK mRNA expression, and FAK siRNA for blocking FAK expression. Western blots were used for P-FAK, P-PI3K, and P-Akt analysis. Fibronectin-treated OVCAR-3, A2780/CP70 cells have increased ability to migrate and invade. It significantly promoted this behavior through the phosphorylation of FAK. The cell displayed significantly increased signaling regulation of the FAK pathway (p-PI3K/P-Akt). Furthermore, siRNA FAK-treated cells had reduced the levels of p-PI3K/P-Akt after induced by fibronectin. Our results indicate that FAK inhibition can suppress ovarian cancer cells migration and invasion through inhibiting downstream signaling (PI3K/AKT), which might be a therapeutic target or biomarker for ovarian cancer.
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Affiliation(s)
- Nasser Ghaly Yousif
- Department of Medicine and Surgery, University of Colorado Denver, Denver, Colorado, 80045, USA
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Sun X, Fa P, Cui Z, Xia Y, Sun L, Li Z, Tang A, Gui Y, Cai Z. The EDA-containing cellular fibronectin induces epithelial-mesenchymal transition in lung cancer cells through integrin α9β1-mediated activation of PI3-K/AKT and Erk1/2. Carcinogenesis 2013; 35:184-91. [PMID: 23929437 DOI: 10.1093/carcin/bgt276] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Cellular fibronectin (cFN) is one of the main components of tissue extracellular matrices and is involved in multiple physiologic and pathologic processes such as embryogenesis, wound healing, inflammation and tumor progression. The function of fibronectin in regulating normal cell adhesion and migration is well documented, but its function in cancer progression is only partially unraveled. We have reported previously that fibronectin stimulates the proliferation and survival of non-small lung carcinoma cells through upregulation of pro-oncogenic signals related to cyclooxygenase-2/phosphatidylinositol-3-kinase/protein kinase B (COX-2/PI3-K/AKT)/mammalian target of rapamycin triggered by activation of the integrin α5β1. Here, we extend these studies by showing that fibronectin promotes epithelial-mesenchymal transition (EMT) in lung cancer cells. We found that cFN, but not plasma fibronectin or type 1 collagen, induces lung carcinoma cell scattering in vitro, promotes cell migration and invasion of Matrigel and stimulates the expression of the mesenchymal marker α-smooth muscle actin while decreasing the expression of the epithelial marker E-cadherin through PI3-K and Erk pathways. Interestingly, the extra domain A (EDA) within cFN was found to be crucial for this process, as confirmed by testing cells overexpressing EDA or cells exposed to EDA-containing matrices. We found that the integrin α9, but not α5, mediated cFN-induced EMT as silencing integrin α9 neutralized cFN-induced EMT. Overall, our findings show that the EDA domain within cFN induces EMT in lung carcinoma cells through integrin α9-mediated activation of PI3-K and Erk.
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Affiliation(s)
- Xiaojuan Sun
- Department of Biobank, Shenzhen Tumor Clinical Immune Gene Therapy Engineering Lab, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen 518035, China
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Hüttenhain R, Surinova S, Ossola R, Sun Z, Campbell D, Cerciello F, Schiess R, Bausch-Fluck D, Rosenberger G, Chen J, Rinner O, Kusebauch U, Hajdúch M, Moritz RL, Wollscheid B, Aebersold R. N-glycoprotein SRMAtlas: a resource of mass spectrometric assays for N-glycosites enabling consistent and multiplexed protein quantification for clinical applications. Mol Cell Proteomics 2013; 12:1005-16. [PMID: 23408683 DOI: 10.1074/mcp.o112.026617] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Protein biomarkers have the potential to transform medicine as they are clinically used to diagnose diseases, stratify patients, and follow disease states. Even though a large number of potential biomarkers have been proposed over the past few years, almost none of them have been implemented so far in the clinic. One of the reasons for this limited success is the lack of technologies to validate proposed biomarker candidates in larger patient cohorts. This limitation could be alleviated by the use of antibody-independent validation methods such as selected reaction monitoring (SRM). Similar to measurements based on affinity reagents, SRM-based targeted mass spectrometry also requires the generation of definitive assays for each targeted analyte. Here, we present a library of SRM assays for 5568 N-glycosites enabling the multiplexed evaluation of clinically relevant N-glycoproteins as biomarker candidates. We demonstrate that this resource can be utilized to select SRM assay sets for cancer-associated N-glycoproteins for their subsequent multiplexed and consistent quantification in 120 human plasma samples. We show that N-glycoproteins spanning 5 orders of magnitude in abundance can be quantified and that previously reported abundance differences in various cancer types can be recapitulated. Together, the established N-glycoprotein SRMAtlas resource facilitates parallel, efficient, consistent, and sensitive evaluation of proposed biomarker candidates in large clinical sample cohorts.
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Affiliation(s)
- Ruth Hüttenhain
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland
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Melnick M, Sedghizadeh PP, Deluca KA, Jaskoll T. Cytomegalovirus-induced salivary gland pathology: resistance to kinase inhibitors of the upregulated host cell EGFR/ERK pathway is associated with CMV-dependent stromal overexpression of IL-6 and fibronectin. HERPESVIRIDAE 2013; 4:1. [PMID: 23342981 PMCID: PMC3602079 DOI: 10.1186/2042-4280-4-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Accepted: 12/28/2012] [Indexed: 11/10/2022]
Abstract
Background Recently we identified a relationship between human cytomegalovirus (hCMV) and human salivary gland (SG) mucoepidermoid carcinoma (MEC) in over 90% of cases; tumorigenesis in these cases uniformly correlated with active hCMV protein expression and an upregulation of the EGFR → ERK pathway. Our previously characterized, novel mouse organ culture model of mouse CMV (mCMV)-induced tumorigenesis displays a number of histologic and molecular characteristics similar to human MEC. Methods Newborn mouse submandibular glands (SMGs) were incubated with 1 × 105 PFU/ml of lacZ-tagged mCMV RM427+ on day 0 for 24 hours and then cultured in virus-free media for a total of 6 or 12 days with or without EGFR/ERK inhibitors and/or aciclovir. SMGs were collected for histology, immunolocalization (pERK, FN, IL-6), viral distribution, or Western blot analysis (pERK). Results Here we report: (1) mouse SMG tumors soon exhibit an acquired resistance to EGFR/ERK pathway kinase inhibitors, alone or in combination; (2) long term tumor regression can only be sustained by concurrent inhibitor and antiviral treatment; (3) CMV-dependent, kinase inhibitor resistance is associated with overexpression of fibronectin and IL-6 proteins in abnormal stromal cells. Conclusions Acquired resistance to kinase inhibitors is dependent upon CMV dysregulation of alternative pathways with downstream effectors common with the targeted pathway, a phenomenon with important therapeutic implications for human MEC of salivary glands.
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Affiliation(s)
- Michael Melnick
- Laboratory for Developmental Genetics, University of Southern California, 925 W 34th Street, MC-0641, Los Angeles, CA 90089-0641, USA.
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Schaffner F, Ray AM, Dontenwill M. Integrin α5β1, the Fibronectin Receptor, as a Pertinent Therapeutic Target in Solid Tumors. Cancers (Basel) 2013; 5:27-47. [PMID: 24216697 PMCID: PMC3730317 DOI: 10.3390/cancers5010027] [Citation(s) in RCA: 143] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 01/09/2013] [Accepted: 01/11/2013] [Indexed: 12/11/2022] Open
Abstract
Integrins are transmembrane heterodimeric proteins sensing the cell microenvironment and modulating numerous signalling pathways. Changes in integrin expression between normal and tumoral cells support involvement of specific integrins in tumor progression and aggressiveness. This review highlights the current knowledge about α5β1 integrin, also called the fibronectin receptor, in solid tumors. We summarize data showing that α5β1 integrin is a pertinent therapeutic target expressed by tumoral neovessels and tumoral cells. Although mainly evaluated in preclinical models, α5β1 integrin merits interest in particular in colon, breast, ovarian, lung and brain tumors where its overexpression is associated with a poor prognosis for patients. Specific α5β1 integrin antagonists will be listed that may represent new potential therapeutic agents to fight defined subpopulations of particularly aggressive tumors.
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Affiliation(s)
- Florence Schaffner
- UMR 7213 CNRS, Laboratoire de Biophotonique et Pharmacologie, Tumoral Signaling and Therapeutic Targets, Université de Strasbourg, Faculté de Pharmacie, 67401 Illkirch, France.
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Yang HT, Chao PC, Yin MC. Riboflavin at High Doses Enhances Lung Cancer Cell Proliferation, Invasion, and Migration. J Food Sci 2013; 78:H343-9. [DOI: 10.1111/1750-3841.12012] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2012] [Accepted: 11/04/2012] [Indexed: 11/27/2022]
Affiliation(s)
- Hui-ting Yang
- Dept. of Nutrition; China Medical Univ.; Taichung City; Taiwan
| | - Pei-chun Chao
- Dept. of Nutrition; Chung Shan Medical Univ. Hospital; Taichung City; Taiwan
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Kamoshida G, Matsuda A, Miura R, Takashima Y, Katsura A, Tsuji T. Potentiation of tumor cell invasion by co-culture with monocytes accompanying enhanced production of matrix metalloproteinase and fibronectin. Clin Exp Metastasis 2012; 30:289-97. [DOI: 10.1007/s10585-012-9536-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Accepted: 09/14/2012] [Indexed: 11/29/2022]
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Lin CC, Yin MC. Clinical significance of circulating IL-10 and fibronectin levels in hepatocellular carcinoma patients with HBV infection. Biomedicine (Taipei) 2012. [DOI: 10.1016/j.biomed.2012.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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Fibronectin stimulates migration through lipid raft dependent NHE-1 activation in mouse embryonic stem cells: involvement of RhoA, Ca(2+)/CaM, and ERK. Biochim Biophys Acta Gen Subj 2012; 1820:1618-27. [PMID: 22683701 DOI: 10.1016/j.bbagen.2012.05.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 05/25/2012] [Accepted: 05/30/2012] [Indexed: 02/04/2023]
Abstract
BACKGROUND Extracellular matrix (ECM) components and intracellular pH (pH(i)) may serve as regulators of cell migration in various cell types. METHODS The Oris migration assay was used to assess the effect of fibronectin (FN) on cell motility. The Na(+)/H(+) exchanger (NHE)-1 activity was evaluated by measuring pH(i) and [(22)Na(+)] uptake. To examine activated signaling molecules, western blot analysis and immunoprecipitation was performed. RESULTS ECM components (FN, laminin, fibrinogen, and collagen type I) increased [(22)Na(+)] uptake, pH(i), and cell migration. In addition, FN-induced increase of cell migration was inhibited by NHE-1 inhibitor amiloride or NHE-1-specific siRNA. FN selectively increased the mRNA and protein expression of NHE-1, but not that of NHE-2 or NHE-3. FN binds integrin β1 and subsequently stimulates caveolin-1 phosphorylation and Ca(2+) influx. Then, NHE-1 is phosphorylated by RhoA and Rho kinases, and Ca(2+)/calmodulin (CaM) signaling elicits complex formation with NHE-1, which is enriched in lipid raft/caveolae microdomains of the plasma membrane. Activation of NHE-1 continuously induces an increase of [(22)Na(+)] uptake and pH(i). Finally, NHE-1-dependent extracellular signal-regulated kinase (ERK) 1/2 phosphorylation enhanced matrix metalloproteinase-2 (MMP-2) and filamentous-actin (F-actin) expression, partially contributing to the regulation of embryonic stem cells (ESCs) migration. CONCLUSIONS FN stimulated mESCs migration and proliferation through NHE-1 activation, which were mediated by lipid raft-associated caveolin-1, RhoA/ROCK, and Ca(2+)/CaM signaling pathways. GENERAL SIGNIFICANCE The precise role of NHE in the modulation of ECM-related physiological functions such as proliferation and migration remains poorly understood. Thus, this study analyzed the relationship between FN and NHE in regulating the migration of mouse ESCs and their related signaling pathways.
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Hua P, Feng W, Rezonzew G, Chumley P, Jaimes EA. The transcription factor ETS-1 regulates angiotensin II-stimulated fibronectin production in mesangial cells. Am J Physiol Renal Physiol 2012; 302:F1418-29. [PMID: 22357921 DOI: 10.1152/ajprenal.00477.2011] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Angiotensin II (ANG II) produced as result of activation of the renin-angiotensin system (RAS) plays a critical role in the pathogenesis of chronic kidney disease via its hemodynamic effects on the renal microcirculation as well as by its nonhemodynamic actions including the production of extracellular matrix proteins such as fibronectin, a multifunctional extracellular matrix protein that plays a major role in cell adhesion and migration as well as in the development of glomerulosclerosis. ETS-1 is an important transcription factor essential for normal kidney development and glomerular integrity. We previously showed that ANG II increases ETS-1 expression and is required for fibronectin production in mesangial cells. In these studies, we determined that ANG II induces phosphorylation of ETS-1 via activation of the type 1 ANG II receptor and that Erk1/2 and Akt/PKB phosphorylation are required for these effects. In addition, we characterized the role of ETS-1 on the transcriptional activation of fibronectin production in mesangial cells. We determined that ETS-1 directly activates the fibronectin promoter and by utilizing gel shift assays and chromatin immunoprecipitation assays identified two different ETS-1 binding sites that promote the transcriptional activation of fibronectin in response to ANG II. In addition, we identified the essential role of CREB and its coactivator p300 on the transcriptional activation of fibronectin by ETS-1. These studies unveil novel mechanisms involved in RAS-induced production of the extracellular matrix protein fibronectin in mesangial cells and establish the role of the transcription factor ETS-1 as a direct mediator of these effects.
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Affiliation(s)
- Ping Hua
- Division of Nephrology, University of Alabama at Birmingham, 1530 3rd Ave. South, Birmingham, AL 35294-1150, USA
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Fournier C, Perrier A, Thomas M, Laroche N, Dumas V, Rattner A, Vico L, Guignandon A. Reduction by strontium of the bone marrow adiposity in mice and repression of the adipogenic commitment of multipotent C3H10T1/2 cells. Bone 2012; 50:499-509. [PMID: 21839191 DOI: 10.1016/j.bone.2011.07.038] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Revised: 06/25/2011] [Accepted: 07/25/2011] [Indexed: 11/22/2022]
Abstract
Multipotent mesenchymal cells (MMCs) differentiate into osteoblasts or adipocytes through RUNX2 and PPARγ2, respectively. Strontium ranelate has been shown to promote osteoblastogenesis and prevent adipogenesis in long-term experiments using MMCs. The present study involved in-vitro and in-vivo investigations of whether Sr might first be an inhibitor of adipogenesis, thus explaining late osteoblastogenesis. It was established in vivo that Sr reduces adipogenesis in mice treated only for 3 weeks with a 6 mmol/kg/day dose of Sr while the trabecular bone volume is increased. In order to decipher molecular mechanisms during inhibition of adipogenesis, we used murine MMCs C3H10T1/2 cultured under adipogenic conditions (AD) and treated Sr of a concentration up to 3 mM. It was shown that early on (day 1), Sr dose-dependently reduced PPARγ2 and CEBPα mRNA without affecting the RUNX2 gene expression whereas it repressed ALP mRNA. Later (day 5), PPARγ2 and CEBPα mRNA remained inhibited by Sr, preventing adipocyte lipid accumulation, while Runx2 and ALP mRNA were increased. Moreover, under the mentioned conditions, Sr was able to quickly induce the Cyclin D1 gene expression, proliferation and fibronectin fibrillogenesis, both involved in the inhibition of adipogenesis. The inhibition of the ERK pathway by U0126 blunted the Sr-induced PPARγ2 repression while restoring the lipid accumulation. These results demonstrated that Sr was capable of rapidly reducing adipogenesis by a selective PPARγ2 repression that can be explained by its ability to promote MMC proliferation.
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Affiliation(s)
- C Fournier
- INSERM U1059, F42023, Saint-Etienne France
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Mayer P, Reitzenstein U, Warnken M, Enzmann H, Racké K. Insulin action on H292 bronchial carcinoma cells as compared to normal bronchial epithelial cells. Pulm Pharmacol Ther 2011; 25:104-14. [PMID: 22210006 DOI: 10.1016/j.pupt.2011.12.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 11/14/2011] [Accepted: 12/18/2011] [Indexed: 12/14/2022]
Abstract
Inhaled insulin may contribute to bronchial carcinoma due to IGF-I receptor activation by high local concentrations. Therefore, effects of insulin and IGF-I on human bronchial carcinoma cells (H292) and normal bronchial epithelium cells (HBE) were studied. TGF-β was included since it also influences carcinoma progression. H292 and HBE cells expressed both the insulin receptor and the IGF-I receptor; in H292 cells an additional, shorter, splicing variant (IR-A) of the insulin receptor was present. Insulin receptor expression was around four to five times higher in H292 than in HBE cells at mRNA and protein levels. Insulin and TGF-β exerted contrary actions on proliferation and gene expression in H292 cells. Genes regulated by insulin, IGF-I, and TGF-β were linked to inflammation, cell adhesion, muscle contraction and differentiation. Insulin and IGF-I also suppressed DNA repair genes. EC(50) for insulin-induced proliferation was around 5 nM in H292 and around 30 nM HBE cells. The EC(50) values for gene expression ranged from 9 to 90 nM in both cell types, dependent on the gene studied. In H292 cells, the proliferative response was much stronger if TGF-β was present. In HBE cells this interaction of insulin and TGF-β was not observed, and changes in gene expression were mostly lower by at least 10-fold as compared to H292. All in all, the insulin effects in H292 were generally much stronger than in HBE cells and - with regard to proliferation - occurred at lower concentrations. Thus, insulin will hardly induce cancer from normal bronchial cells but may favour progression of pre-existing tumours.
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Affiliation(s)
- Peter Mayer
- Federal Institute for Drugs and Medical Devices (BfArM), Kurt-Georg-Kiesinger-Allee 3, D-53175 Bonn, Germany.
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Establishment of a highly migratory subclone reveals that CD133 contributes to migration and invasion through epithelial-mesenchymal transition in pancreatic cancer. Hum Cell 2011; 25:1-8. [PMID: 22109279 DOI: 10.1007/s13577-011-0037-9] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Accepted: 10/20/2011] [Indexed: 10/15/2022]
Abstract
Pancreatic cancer is a lethal disease because of invasion and early metastasis. Although CD133, a marker of cancer stem cells (CSCs) in a variety of solid tumors, has been studied in recent decades, its function remains obscure. Recent reports suggest that epithelial-mesenchymal transition (EMT) may be related to the properties of CSCs. In this study, we investigated whether CSC markers are associated with EMT. For Capan1M9, a highly migratory cell subclone established from human pancreatic cancer cell line Capan-1, CD133 expression, migration, and invasion were greater than for the parent cells. In Capan1M9 cells, the EMT-related transcription factors Slug and Snail were up-regulated, and N-cadherin and fibronectin were also substantially increased. In contrast, occludin and desmoplakin were suppressed. Knockdown of endogenous CD133 in the Capan1M9 cells led to Slug suppression and reduction of migration and invasion. Taken together, CD133 has an important role in migration and invasion by facilitating EMT in pancreatic cancer cells.
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Huang CY, Lin CY, Tsai CW, Yin MC. Inhibition of cell proliferation, invasion and migration by ursolic acid in human lung cancer cell lines. Toxicol In Vitro 2011; 25:1274-80. [PMID: 21539908 DOI: 10.1016/j.tiv.2011.04.014] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Revised: 02/10/2011] [Accepted: 04/11/2011] [Indexed: 01/11/2023]
Abstract
Ursolic acid (UA) is a pentacyclic triterpene naturally occurring in many plant foods. Apoptotic, anti-invasive and anti-migratory effects of UA at 2, 4, 8, or 16 μmol/L in human non-small cell lung cancer A549, H3255 and Calu-6 cell lines were examined. The impact of this compound upon associated biomarkers such as vascular endothelial growth factor (VEGF), intercellular adhesion molecule-1 (ICAM-1) and matrix metalloproteinase (MMP) was also evaluated. UA treatments concentration-dependently decreased cell viability, and lowered Na(+)-K(+)-ATPase activity (P<0.05). This compound at 4-16 μmol/L concentration-dependently increased DNA fragmentation, and reduced VEGF and transforming growth factor beta1 levels in test cancer cells (P<0.05). UA concentration-dependently suppressed ICAM-1 expression (P<0.05). This compound significantly declined fibronectin expression (P<0.05), but concentration-dependent effect was shown in H3255 cells only (P<0.05). UA treatments significantly suppressed the expression of MMP-9 and MMP-2 (P<0.05), and inhibited protein kinase C activity in test cell lines (P<0.05). UA treatments also concentration-dependently reduced cell invasion (P<0.05); however, this compound at 4-16 μmol/L significantly decreased cell migration (P<0.05), and concentration-dependent effect was shown in A549 and Calu-6 cells (P<0.05). These findings suggested that this triterpene was a potent anti-lung cancer agent, and it might be able to retard invasion and metastasis of lung cancer cells.
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Affiliation(s)
- Chun-Yin Huang
- Department of Nutrition, China Medical University, Taichung City, Taiwan, ROC
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miRNA-1 targets fibronectin1 and suppresses the migration and invasion of the HEp2 laryngeal squamous carcinoma cell line. FEBS Lett 2011; 585:3263-9. [PMID: 21924268 DOI: 10.1016/j.febslet.2011.08.052] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2011] [Revised: 08/31/2011] [Accepted: 08/31/2011] [Indexed: 11/21/2022]
Abstract
MicroRNAs (miRNAs) are an evolutionarily conserved class of endogenous, non-coding RNAs that modulate gene expression at the post-transcriptional level and are involved in tumorigenesis. In this study, we demonstrate that miR-1 suppresses the potential for growth, migration and invasion in the HEp2 cell line. Furthermore, we validate that FN1 is a direct target gene for miR-1 via fluorescent reporter assay and is negatively regulated by miR-1. Moreover, the knockdown of FN1 has the same phenotypic effects as the overexpression of miR-1. Taken together, our results provide evidence that miR-1 may play a role as a tumor suppressor gene in laryngeal carcinoma.
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Huang CY, Yu HS, Lai TY, Yeh YL, Su CC, Hsu HH, Tsai FJ, Tsai CH, Wu HC, Tang CH. Leptin increases motility and integrin up-regulation in human prostate cancer cells. J Cell Physiol 2011; 226:1274-82. [PMID: 20945385 DOI: 10.1002/jcp.22455] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Prostate cancer is the most commonly diagnosed malignancy in men and shows a predilection for metastasis to distant organs. Leptin, an adipocyte-derived cytokine that is closely associated with obesity, has recently been shown to be involved in carcinogenesis and cancer progression. The aim of this study was to investigate whether leptin is associated with the motility of prostate cancer cells. We found that leptin increased the migration of human prostate cancer cells and expression of αvβ3 integrin on these cells. Leptin-mediated migration and increased integrin expression were attenuated by OBRl receptor antisense oligonucleotide (ODN). Activation of insulin receptor substrate (IRS-1), phosphatidylinositol 3-kinase (PI3K), Akt, and NF-κB pathways after leptin treatment was demonstrated. Furthermore, leptin-induced integrin expression and migration activity were inhibited by specific inhibitors; small interfering RNAs (siRNAs); and mutants of the IRS-1, PI3K, Akt, and NF-κB cascades. Therefore, this study shows that leptin stimulates the migration of human prostate cancer cells, one of the mechanisms underlying leptin-directed migration was transcriptional up-regulation of αvβ3 integrin expression through the OBR1/IRS-1/PI3K/Akt/NF-κB signal transduction pathway.
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Affiliation(s)
- Chih-Yang Huang
- Graduate Institute of Basic Medical Science, China Medical University and Hospital, Taichung, Taiwan
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Park JH, Ryu JM, Han HJ. Involvement of caveolin-1 in fibronectin-induced mouse embryonic stem cell proliferation: role of FAK, RhoA, PI3K/Akt, and ERK 1/2 pathways. J Cell Physiol 2010; 226:267-75. [PMID: 20658539 DOI: 10.1002/jcp.22338] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Fibronectin (FN) is the foremost proliferation-associated extracellular matrix component promoting cell adhesion, migration, and survival. We examined the effect of FN on cell proliferation and the related signaling pathways in mouse embryonic stem (ES) cells. FN increased integrin β1, Src, focal adhesion kinase (FAK), and caveolin-1 phosphorylation levels in a time-dependent manner. Phosphorylation of Src, FAK, and caveolin-1 was attenuated by integrin β1 neutralizing antibody. Integrin β1, Src, and FAK coimmunoprecipitated with caveolin-1 in the presence of FN. In addition, FN increased RhoA and Rho kinase activation, which were completely blocked by PP2, FAK small interfering RNA (siRNA), caveolin-1 siRNA, or the caveolar disruptor methyl-β-cyclodextrin (MβCD). FN also increased phosphorylation of Akt and ERK 1/2, which were significantly blocked by either FAK siRNA, caveolin-1 siRNA, MβCD, GGTI-286 (RhoA inhibitor), or Y-27632 (Rho kinase inhibitor). FN-induced increase of protooncogenes (c-fos, c-myc, and c-Jun) and cell-cycle regulatory proteins (cyclin D1/CDK4 and cyclin E/CDK2) expression levels were attenuated by FAK siRNA or caveolin-1 siRNA. Furthermore, inhibition of each pathway such as integrin β1, Src, FAK, caveolin-1, RhoA, Akt, and ERK 1/2 blocked FN-induced [(3)H]-thymidine incorporation. We conclude that FN stimulates mouse ES cell proliferation via RhoA-PI3K/Akt-ERK 1/2 pathway through caveolin-1 phosphorylation.
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Affiliation(s)
- Jae Hong Park
- Department of Veterinary Physiology, Biotherapy Human Resources Center (BK 21), College of Veterinary Medicine, Chonnam National University, Gwangju, Korea
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Jia D, Yan M, Wang X, Hao X, Liang L, Liu L, Kong H, He X, Li J, Yao M. Development of a highly metastatic model that reveals a crucial role of fibronectin in lung cancer cell migration and invasion. BMC Cancer 2010; 10:364. [PMID: 20615257 PMCID: PMC2912267 DOI: 10.1186/1471-2407-10-364] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Accepted: 07/09/2010] [Indexed: 01/26/2023] Open
Abstract
Background The formation of metastasis is the most common cause of death in patients with lung cancer. A major implement to understand the molecular mechanisms involved in lung cancer metastasis has been the lack of suitable models to address it. In this study, we aimed at establishing a highly metastatic model of human lung cancer and characterizing its metastatic properties and underlying mechanisms. Methods The human lung adeno-carcinoma SPC-A-1 cell line was used as parental cells for developing of highly metastatic cells by in vivo selection in NOD/SCID mice. After three rounds of selection, a new SPC-A-1sci cell line was established from pulmonary metastatic lesions. Subsequently, the metastatic properties of this cell line were analyzed, including optical imaging of in vivo metastasis, immunofluorescence and immunohistochemical analysis of several epithelial mesenchymal transition (EMT) makers and trans-well migration and invasion assays. Finally, the functional roles of fibronectin in the invasive and metastatic potentials of SPC-A-1sci cells were determined by shRNA analysis. Results A spontaneously pulmonary metastatic model of human lung adeno-carcinoma was established in NOD/SCID mice, from which a new lung cancer cell line, designated SPC-A-1sci, was isolated. Initially, the highly metastatic behavior of this cell line was validated by optical imaging in mice models. Further analyses showed that this cell line exhibit phenotypic and molecular alterations consistent with EMT. Compared with its parent cell line SPC-A-1, SPC-A-1sci was more aggressive in vitro, including increased potentials for cell spreading, migration and invasion. Importantly, fibronectin, a mesenchymal maker of EMT, was found to be highly expressed in SPC-A-1sci cells and down-regulation of it can decrease the in vitro and in vivo metastatic abilities of this cell line. Conclusions We have successfully established a new human lung cancer cell line with highly metastatic potentials, which is subject to EMT and possibly mediated by increased fibronectin expression. This cell line and its reproducible s.c. mouse model can further be used to identify underlying mechanisms of lung cancer metastasis.
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Affiliation(s)
- Deshui Jia
- Laboratory of Experimental Pathology, Shanghai Cancer Institute, Shanghai Jiao Tong University School of Medicine, Shanghai 200032, China
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Fang Z, Yao W, Xiong Y, Zhang J, Liu L, Li J, Zhang C, Wan J. Functional elucidation and methylation-mediated downregulation of ITGA5 gene in breast cancer cell line MDA-MB-468. J Cell Biochem 2010; 110:1130-41. [DOI: 10.1002/jcb.22626] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Martínez-García E, Irigoyen M, González-Moreno O, Corrales L, Teijeira A, Salvo E, Rouzaut A. Repetitive Nicotine Exposure Leads to a More Malignant and Metastasis-Prone Phenotype of SCLC: A Molecular Insight into the Importance of Quitting Smoking during Treatment. Toxicol Sci 2010; 116:467-76. [PMID: 20457658 DOI: 10.1093/toxsci/kfq138] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Affiliation(s)
- Eva Martínez-García
- Division of Oncology, Centre for Applied Medical Research, Department of Biochemistry, School of Medicine, University of Navarra, 31008 Pamplona, Spain
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