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Haake SM, Rios BL, Pozzi A, Zent R. Integrating integrins with the hallmarks of cancer. Matrix Biol 2024; 130:20-35. [PMID: 38677444 DOI: 10.1016/j.matbio.2024.04.003] [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: 01/09/2024] [Revised: 04/02/2024] [Accepted: 04/23/2024] [Indexed: 04/29/2024]
Abstract
Epithelial cells adhere to a specialized extracellular matrix called the basement membrane which allows them to polarize and form epithelial tissues. The extracellular matrix provides essential physical scaffolding and biochemical and biophysical cues required for tissue morphogenesis, differentiation, function, and homeostasis. Epithelial cell adhesion to the extracellular matrix (i.e., basement membrane) plays a critical role in organizing epithelial tissues, separating the epithelial cells from the stroma. Epithelial cell detachment from the basement membrane classically results in death, though detachment or invasion through the basement membrane represents a critical step in carcinogenesis. Epithelial cells bind to the extracellular matrix via specialized matrix receptors, including integrins. Integrins are transmembrane receptors that form a mechanical linkage between the extracellular matrix and the intracellular cytoskeleton and are required for anchorage-dependent cellular functions such as proliferation, migration, and invasion. The role of integrins in the development, growth, and dissemination of multiple types of carcinomas has been investigated by numerous methodologies, which has led to great complexity. To organize this vast array of information, we have utilized the "Hallmarks of Cancer" from Hanahan and Weinberg as a convenient framework to discuss the role of integrins in the pathogenesis of cancers. This review explores this biology and how its complexity has impacted the development of integrin-targeted anti-cancer therapeutics.
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Affiliation(s)
- Scott M Haake
- Division of Hematology, Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Veterans Affairs, Nashville, TN, USA; Vanderbilt-Ingram Cancer Center, Nashville, TN, USA; Cancer Biology Program, Vanderbilt University, Nashville, TN, USA.
| | - Brenda L Rios
- Vanderbilt-Ingram Cancer Center, Nashville, TN, USA; Cancer Biology Program, Vanderbilt University, Nashville, TN, USA
| | - Ambra Pozzi
- Department of Veterans Affairs, Nashville, TN, USA; Vanderbilt-Ingram Cancer Center, Nashville, TN, USA; Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Roy Zent
- Department of Veterans Affairs, Nashville, TN, USA; Vanderbilt-Ingram Cancer Center, Nashville, TN, USA; Cancer Biology Program, Vanderbilt University, Nashville, TN, USA; Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA
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Trinel M, Le Lamer AC, Jullian V, Jacquemin D, Graton J, Cristofoli V, Crossay E, Yassine M, Rolland C, Vergnolle N, Mejia K, Joel Cabanillas B, Racaud-Sultan C, Fabre N. Daphnanes diterpenes from the latex of Hura crepitans L. And activity against human colorectal cancer cells Caco-2. Bioorg Chem 2020; 103:104132. [PMID: 32768743 DOI: 10.1016/j.bioorg.2020.104132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 07/15/2020] [Accepted: 07/19/2020] [Indexed: 12/16/2022]
Abstract
Hura crepitans (Euphorbiaceae) is a tree from South America that produces an irritant latex used as a fish poison. A bio-guided fractionation of an ethanolic extract of the latex led to the isolation and structural identification of three known daphnane-type diterpenes (1-3) including huratoxin (1), together with two new analogs (4, 5). Compound 1 was found to exhibit significant and selective cell growth inhibition against the colorectal cancer cell line Caco-2, with morphological modifications suggesting formations mimicking the intestinal crypt architecture. The underlying mechanism of 1 was further investigated, in comparison with 12-O-tetradecanoylphorbol-13-acetate (TPA), revealing two different mechanisms.
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Affiliation(s)
- Manon Trinel
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, France
| | | | - Valérie Jullian
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, France; Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima 15102, Peru
| | - Denis Jacquemin
- CEISAM, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, Faculté des Sciences et des Techniques, Université de Nantes, France
| | - Jérôme Graton
- CEISAM, Chimie et Interdisciplinarité, Synthèse, Analyse, Modélisation, Faculté des Sciences et des Techniques, Université de Nantes, France
| | | | - Elise Crossay
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, France
| | - May Yassine
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | - Corinne Rolland
- IRSD, Université de Toulouse, INSERM, INRA, ENVT, UPS, Toulouse, France
| | | | - Kember Mejia
- Instituto de Investigaciones de la Amazonia Peruana (IIAP), Iquitos, Peru
| | - Billy Joel Cabanillas
- Laboratorios de Investigación y Desarrollo, Facultad de Ciencias y Filosofía, Universidad Peruana Cayetano Heredia, Lima 15102, Peru
| | | | - Nicolas Fabre
- UMR 152 PharmaDev, Université de Toulouse, IRD, UPS, France
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3
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Kumar Katakam S, Tria V, Sim WC, Yip GW, Molgora S, Karnavas T, Elghonaimy EA, Pelucchi P, Piscitelli E, Ibrahim SA, Zucchi I, Reinbold R, Greve B, Götte M. The heparan sulfate proteoglycan syndecan-1 regulates colon cancer stem cell function via a focal adhesion kinase-Wnt signaling axis. FEBS J 2020; 288:486-506. [PMID: 32367652 DOI: 10.1111/febs.15356] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2019] [Revised: 04/23/2020] [Accepted: 05/01/2020] [Indexed: 12/21/2022]
Abstract
In colon cancer, downregulation of the transmembrane heparan sulfate proteoglycan syndecan-1 (Sdc-1) is associated with increased invasiveness, metastasis, and dedifferentiation. As Sdc-1 modulates signaling pathways relevant to stem cell function, we tested the hypothesis that it may regulate a tumor-initiating cell phenotype. Sdc-1 small-interfering RNA knockdown in the human colon cancer cell lines Caco2 and HT-29 resulted in an increased side population (SP), enhanced aldehyde dehydrogenase 1 activity, and higher expression of CD133, LGR5, EPCAM, NANOG, SRY (sex-determining region Y)-box 2, KLF2, and TCF4/TCF7L2. Sdc-1 knockdown enhanced sphere formation, cell viability, Matrigel invasiveness, and epithelial-to-mesenchymal transition-related gene expression. Sdc-1-depleted HT-29 xenograft growth was increased compared to controls. Decreased Sdc-1 expression was associated with an increased activation of β1-integrins, focal adhesion kinase (FAK), and wingless-type (Wnt) signaling. Pharmacological FAK and Wnt inhibition blocked the enhanced stem cell phenotype and invasive growth. Sequential flow cytometric SP enrichment substantially enhanced the stem cell phenotype of Sdc-1-depleted cells, which showed increased resistance to doxorubicin chemotherapy and irradiation. In conclusion, Sdc-1 depletion cooperatively enhances activation of integrins and FAK, which then generates signals for increased invasiveness and cancer stem cell properties. Our findings may provide a novel concept to target a stemness-associated signaling axis as a therapeutic strategy to reduce metastatic spread and cancer recurrence. DATABASES: The GEO accession number of the Affymetrix transcriptomic screening is GSE58751.
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Affiliation(s)
| | - Valeria Tria
- Istituto di Technologie Biomediche Consiglio Nazionale dell Ricerche, ITB-CNR, Segrate-Milano, Italy
| | - Wey-Cheng Sim
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - George W Yip
- Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Stefano Molgora
- Istituto di Technologie Biomediche Consiglio Nazionale dell Ricerche, ITB-CNR, Segrate-Milano, Italy
| | - Theodoros Karnavas
- Chromatin Dynamics Unit, Vita Salute San Raffaele University and Research Institute, Milan, Italy.,Department of Neurosurgery, NYU Langone Medical Center, New York, NY, USA
| | - Eslam A Elghonaimy
- Department of Zoology, Faculty of Science, Cairo University, Giza, Egypt
| | - Paride Pelucchi
- Istituto di Technologie Biomediche Consiglio Nazionale dell Ricerche, ITB-CNR, Segrate-Milano, Italy
| | - Eleonora Piscitelli
- Istituto di Technologie Biomediche Consiglio Nazionale dell Ricerche, ITB-CNR, Segrate-Milano, Italy
| | | | - Ileana Zucchi
- Istituto di Technologie Biomediche Consiglio Nazionale dell Ricerche, ITB-CNR, Segrate-Milano, Italy
| | - Rolland Reinbold
- Istituto di Technologie Biomediche Consiglio Nazionale dell Ricerche, ITB-CNR, Segrate-Milano, Italy
| | - Burkhard Greve
- Department of Radiotherapy - Radiooncology, University Hospital Münster, Germany
| | - Martin Götte
- Department of Gynecology and Obstetrics, Münster University Hospital, Germany
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4
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Abbasian M, Mousavi E, Khalili M, Arab‐Bafrani Z. Using of keratin substrate for enrichment of HT29 colorectal cancer stem‐like cells. J Biomed Mater Res B Appl Biomater 2018; 107:1264-1271. [DOI: 10.1002/jbm.b.34219] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/08/2018] [Accepted: 08/02/2018] [Indexed: 12/28/2022]
Affiliation(s)
- Mahdi Abbasian
- Metabolic Disorders Research CenterGolestan University of Medical Sciences Gorgan Iran
- Department of Biotechnology, College of AgricultureIsfahan University of Technology Isfahan Iran
| | - Elham Mousavi
- Department of Medical MicrobiologyFaculty of Medicine, Kerman University of Medical Sciences Kerman Iran
| | - Mohsen Khalili
- Medical Cellular and Molecular Research CenterGolestan University of Medical Sciences Gorgan Iran
| | - Zahra Arab‐Bafrani
- Metabolic Disorders Research CenterGolestan University of Medical Sciences Gorgan Iran
- Department of Biochemistry and Biophysics, Faculty of MedicineGolestan University of Medical Sciences Gorgan Iran
- Health technology Research CenterOxin Sabz Espadan Company, Esfahan university of Medical Sciences Esfahan Iran
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Casal JI, Bartolomé RA. RGD cadherins and α2β1 integrin in cancer metastasis: A dangerous liaison. Biochim Biophys Acta Rev Cancer 2018; 1869:321-332. [PMID: 29673969 DOI: 10.1016/j.bbcan.2018.04.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 04/13/2018] [Accepted: 04/14/2018] [Indexed: 12/24/2022]
Abstract
We propose a new cadherin family classification comprising epithelial cadherins (cadherin 17 [CDH17], cadherin 16, VE-cadherin, cadherin 6 and cadherin 20) containing RGD motifs within their sequences. Expression of some RGD cadherins is associated with aggressive forms of cancer during the late stages of metastasis, and CDH17 and VE-cadherin have emerged as critical actors in cancer metastasis. After binding to α2β1 integrin, these cadherins promote integrin β1 activation, and thereby cell adhesion, invasion and proliferation, in liver and lung metastasis. Activation of α2β1 integrin provokes an affinity increase for type IV collagen, a major component of the basement membrane and a critical partner for cell anchoring in liver and other metastatic organs. Activation of α2β1 integrin by RGD motifs breaks an old paradigm of integrin classification and supports an important role of this integrin in cancer metastasis. Recently, synthetic peptides containing the RGD motif of CDH17 elicited highly specific and selective antibodies that block the ability of CDH17 RGD to activate α2β1 integrin. These monoclonal antibodies inhibit metastatic colonization in orthotopic mouse models of liver and lung metastasis for colorectal cancer and melanoma, respectively. Hopefully, blocking the cadherin RGD ligand capacity will give us control over the integrin activity in solid tumors metastasis, paving the way for development of new agents of cancer treatment.
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Affiliation(s)
- J Ignacio Casal
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28039 Madrid, Spain.
| | - Rubén A Bartolomé
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28039 Madrid, Spain
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Brooks M, Mo Q, Krasnow R, Ho PL, Lee YC, Xiao J, Kurtova A, Lerner S, Godoy G, Jian W, Castro P, Chen F, Rowley D, Ittmann M, Chan KS. Positive association of collagen type I with non-muscle invasive bladder cancer progression. Oncotarget 2016; 7:82609-82619. [PMID: 27655672 PMCID: PMC5347718 DOI: 10.18632/oncotarget.12089] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 09/02/2016] [Indexed: 12/15/2022] Open
Abstract
PURPOSE Non-muscle invasive bladder cancers (NMIBC) are generally curable, while ~15% progresses into muscle-invasive cancer with poor prognosis. While efforts have been made to identify genetic alternations associated with progression, the extracellular matrix (ECM) microenvironment remains largely unexplored. Type I collagen is a major component of the bladder ECM, and can be altered during cancer progression. We set out to explore the association of type I collagen with NMIBC progression. EXPERIMENTAL DESIGN The associations of COL1A1 and COL1A2 mRNA levels with progression were evaluated in a multi-center cohort of 189 patients with NMIBCs. Type I collagen protein expression and structure were evaluated in an independent single-center cohort of 80 patients with NMIBCs. Immunohistochemical analysis was performed and state-of-the-art multi-photon microscopy was used to evaluate collagen structure via second harmonic generation imaging. Progression to muscle invasion was the primary outcome. Kaplan-Meier method, Cox regression, and Wilcoxon rank-sum were used for statistical analysis. RESULTS There is a significant association of high COL1A1 and COL1A2 mRNA expression in patients with poor progression-free survival (P=0.0037 and P=0.011, respectively) and overall survival (P=0.024 and P=0.012, respectively). Additionally, immunohistochemistry analysis of type I collagen protein deposition revealed a significant association with progression (P=0.0145); Second-harmonic generation imaging revealed a significant lower collagen fiber curvature ratio in patients with invasive progression (P = 0.0018). CONCLUSIONS Alterations in the ECM microenvironment, particularly type I collagen, likely contributes to bladder cancer progression. These findings will open avenues to future functional studies to investigate ECM-tumor interaction as a potential therapeutic intervention to treat NMIBCs.
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Affiliation(s)
- Michael Brooks
- Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Qianxing Mo
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Dan L Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Ross Krasnow
- Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Philip Levy Ho
- Department of Urology, Baylor College of Medicine, Kelsey-Seybold Clinic, Houston, Texas 77030
| | - Yu-Cheng Lee
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Jing Xiao
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Antonina Kurtova
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Seth Lerner
- Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Gui Godoy
- Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Weiguo Jian
- Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Patricia Castro
- Department of Pathology and Immunology, and Michael E. DeBakey VAMC, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Dan L Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Fengju Chen
- Department of Medicine, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - David Rowley
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Dan L Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Michael Ittmann
- Department of Pathology and Immunology, and Michael E. DeBakey VAMC, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Dan L Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
| | - Keith Syson Chan
- Scott Department of Urology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Department of Urology, Baylor College of Medicine, Kelsey-Seybold Clinic, Houston, Texas 77030
- Department of Molecular & Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Dan L Duncan Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Center for Cell, Gene and Therapy, Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
- Center for Drug Discovery Baylor College of Medicine, One Baylor Plaza, Houston, Texas, 77030
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7
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Khalil W, Xia H, Bodempudi V, Kahm J, Hergert P, Smith K, Peterson M, Parker M, Herrera J, Bitterman PB, Henke CA. Pathologic Regulation of Collagen I by an Aberrant Protein Phosphatase 2A/Histone Deacetylase C4/MicroRNA-29 Signal Axis in Idiopathic Pulmonary Fibrosis Fibroblasts. Am J Respir Cell Mol Biol 2015; 53:391-9. [PMID: 25612003 DOI: 10.1165/rcmb.2014-0150oc] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Idiopathic pulmonary fibrosis (IPF) is characterized by the relentless expansion of fibroblasts depositing type I collagen within the alveolar wall and obliterating the alveolar airspace. MicroRNA (miR)-29 is a potent regulator of collagen expression. In IPF, miR-29 levels are low, whereas type I collagen expression is high. However, the mechanism for suppression of miR-29 and increased type I collagen expression in IPF remains unclear. Here we show that when IPF fibroblasts are seeded on polymerized type I collagen, miR-29c levels are suppressed and type I collagen expression is high. In contrast, miR-29c is high and type I collagen expression is low in control fibroblasts. We demonstrate that the mechanism for suppression of miR-29 during IPF fibroblast interaction with polymerized collagen involves inappropriately low protein phosphatase (PP) 2A function, leading to histone deacetylase (HDA) C4 phosphorylation and decreased nuclear translocation of HDAC4. We demonstrate that overexpression of HDAC4 in IPF fibroblasts restored miR-29c levels and decreased type I collagen expression, whereas knocking down HDAC4 in control fibroblasts suppressed miR-29c levels and increased type I collagen expression. Our data indicate that IPF fibroblast interaction with polymerized type I collagen results in an aberrant PP2A/HDAC4 axis, which suppresses miR-29, causing a pathologic increase in type I collagen expression.
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Affiliation(s)
- Wajahat Khalil
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Hong Xia
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Vidya Bodempudi
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Judy Kahm
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Polla Hergert
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Karen Smith
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Mark Peterson
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Matthew Parker
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Jeremy Herrera
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Peter B Bitterman
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
| | - Craig A Henke
- Department of Medicine, University of Minnesota, Minneapolis, Minnesota
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8
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Widder M, Lützkendorf J, Caysa H, Unverzagt S, Wickenhauser C, Benndorf RA, Schmoll HJ, Müller-Tidow C, Müller T, Müller LP. Multipotent mesenchymal stromal cells promote tumor growth in distinct colorectal cancer cells by a β1-integrin-dependent mechanism. Int J Cancer 2015; 138:964-75. [PMID: 26356035 DOI: 10.1002/ijc.29844] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 07/30/2015] [Accepted: 08/03/2015] [Indexed: 12/26/2022]
Abstract
Tumor-stroma interactions play an essential role in the biology of colorectal carcinoma (CRC). Multipotent mesenchymal stromal cells (MSC) may represent a pivotal part of the stroma in CRC, but little is known about the specific interaction of MSC with CRC cells derived from tumors with different mutational background. In previous studies we observed that MSC promote the xenograft growth of the CRC cell-line DLD1. In the present study, we aimed to analyze the mechanisms of MSC-promoted tumor growth using various in vitro and in vivo experimental models and CRC cells of different mutational status. MSC specifically interacted with distinct CRC cells and supported tumor seeding in xenografts. The MSC-CRC interaction facilitated three-dimensional spheroid formation in CRC cells with dysfunctional E-cadherin system. Stable knock-downs revealed that the MSC-facilitated spheroid formation depended on β1-integrin in CRC cells. Specifically in α-catenin-deficient CRC cells this β1-integrin-dependent interaction resulted in a MSC-mediated promotion of early tumor growth in vivo. Collagen I and other extracellular matrix compounds were pivotal for the functional MSC-CRC interaction. In conclusion, our data demonstrate a differential interaction of MSC with CRC cells of different mutational background. Our study is the first to show that MSC specifically compared to normal fibroblasts impact early xenograft growth of distinct α-catenin deficient CRC cells possibly through secretion of extracellular matrix. This mechanism could serve as a future target for therapy and metastasis prevention.
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Affiliation(s)
- Miriam Widder
- Universitätsklinik und Poliklinik für Innere Medizin IV, Hämatologie und Onkologie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Jana Lützkendorf
- Universitätsklinik und Poliklinik für Innere Medizin IV, Hämatologie und Onkologie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Henrike Caysa
- Institut für Pharmazie, Institutsbereich Pharmazeutische Technologie und Biopharmazie, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Susanne Unverzagt
- Institut für Medizinische Epidemiologie, Biometrie und Informatik, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Claudia Wickenhauser
- Institut für Pathologie, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Ralf A Benndorf
- Institut für Pharmazie, Institutsbereich Pharmazeutische Chemie und Klinische Pharmazie, Martin-Luther-University Halle-Wittenberg, Halle, Germany
| | - Hans-Joachim Schmoll
- Universitätsklinik und Poliklinik für Innere Medizin IV, Hämatologie und Onkologie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Carsten Müller-Tidow
- Universitätsklinik und Poliklinik für Innere Medizin IV, Hämatologie und Onkologie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Thomas Müller
- Universitätsklinik und Poliklinik für Innere Medizin IV, Hämatologie und Onkologie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
| | - Lutz P Müller
- Universitätsklinik und Poliklinik für Innere Medizin IV, Hämatologie und Onkologie, Universitätsklinikum Halle, Martin-Luther-Universität Halle-Wittenberg, Halle, Germany
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9
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Li JL, Chen J, Han M, Liu LX, Gong M, Li X, Wen P, Liu AL, Qin ZL, Han RF, Wen JB. Association of ITGA2 C807T polymorphism with risk of colorectal adenoma and colorectal cancer. Shijie Huaren Xiaohua Zazhi 2015; 23:4358-4367. [DOI: 10.11569/wcjd.v23.i27.4358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the impact of the ITGA2 C807T gene polymorphism on the risk of colorectal adenoma (CRA) and colorectal cancer (CRC) in a Chinese Han population.
METHODS: A hospital-based case-control study was conducted, including 95 healthy controls, 48 patients with CRA and 89 patients with CRC. Genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. Association of the genotypes with the clinical and pathological features of CRC was evaluated.
RESULTS: The frequencies of the genotypes and alleles in CRC were significantly different from those of controls, but there were no significant differences between CRA and controls. Compared with individuals with the wild type genotype CC, subjects with the variant genotypes (CT + TT) had a significantly higher risk of CRA and CRC. In stratified analyses, the elevated CRC risk was especially evident in older individuals, females, smokers, drinkers, well-educated subjects, mental workers and urban subjects. However, no correlation was observed between CRA patients and controls in stratified analyses. When stratified by clinicopathological features such as lesion distribution, pathology subtype, tumor size, differentiation degree, depth of invasion, lymph node metastasis and Duke's stage in patients with CRC, no associations were observed in the polymorphism distributions.
CONCLUSION: The ITGA2 C807T polymorphism may be associated with an increased risk of CRA and CRC.
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10
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Naci D, Vuori K, Aoudjit F. Alpha2beta1 integrin in cancer development and chemoresistance. Semin Cancer Biol 2015; 35:145-53. [PMID: 26297892 DOI: 10.1016/j.semcancer.2015.08.004] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 08/10/2015] [Accepted: 08/14/2015] [Indexed: 01/06/2023]
Abstract
Extracellular matrix, via its receptors the integrins, has emerged as a crucial factor in cancer development. The α2β1 integrin is a major collagen receptor that is widely expressed and known to promote cell migration and control tissue homeostasis. Growing evidence suggests that it can be a key pathway in cancer. Recent studies have shown that α2β1 integrin is a regulator of cancer metastasis either by promoting or inhibiting the dissemination process of cancer cells. The α2β1 integrin signaling can also enhance tumor angiogenesis. Emerging evidence supports a role for α2β1 integrin in cancer chemoresistance especially in hematological malignancies originating from the T cell lineage. In addition, α2β1 integrin has been associated with cancer stem cells. In this review, we will discuss the complex role of α2β1 integrin in these processes. Collagen is a major matrix protein of the tumor microenvironment and thus, understanding how α2β1 integrin regulates cancer pathogenesis is likely to lead to new therapeutic approaches and agents for cancer treatment.
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Affiliation(s)
- Dalila Naci
- Centre de recherche du CHU de Québec, Axe des maladies infectieuses et immunitaires and Département de Microbiologie-Immunologie, Faculté de Médecine, Université Laval, Québec, Canada
| | - Kristiina Vuori
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Fawzi Aoudjit
- Centre de recherche du CHU de Québec, Axe des maladies infectieuses et immunitaires and Département de Microbiologie-Immunologie, Faculté de Médecine, Université Laval, Québec, Canada.
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Chang BS, Choi YJ, Kim JH. Collagen complexes increase the efficiency of iPS cells generated using fibroblasts from adult mice. J Reprod Dev 2015; 61:145-53. [PMID: 25740096 PMCID: PMC4410313 DOI: 10.1262/jrd.2014-081] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Different interventions are being tested for restoration of the youthfulness of adult mouse-derived fibroblasts. However, fundamental issues, such as the decline of adult mouse-derived fibroblast activity with age, remain unresolved. Therefore, in this study, we examined whether treatment with collagen complexes has beneficial effects on the rejuvenation or reprogramming of adult mouse-derived fibroblasts. Further, we investigated the mechanisms of rejuvenation of adult mouse-derived fibroblasts during treatment with total collagen complexes. We isolated total collagen complexes from the tails of young mice and cultured adult mouse-derived fibroblasts with or without the collagen complexes. When compared with fibroblasts cultured without collagen complexes, adult-derived fibroblasts cultured with collagen complexes over five consecutive passages showed a more youthful state, expanded at a higher rate, and exhibited reduced spontaneous cell death. The fibroblasts cultured in the presence of collagen complexes also showed extensive demethylation in the promoter regions of cell cycle-related genes such as PCNA, increased proliferation, and decreased senescence. In addition, the efficiency of reprogramming of fibroblasts to become induced pluripotent stem (iPS) cells was significantly higher in young- and adult-derived fibroblasts cultured with collagen complexes than in adult-derived fibroblasts cultured alone. Furthermore, mechanistic evidence shows that genes involved in anti-proliferative pathways, including Ink4a/Arf locus genes and p53, were downregulated in fibroblasts exposed to collagen complexes. Interestingly, our results suggest that the rejuvenation process was mediated via the α2β1 integrin-dependent Bmi-1 pathway. Thus, collagen complexes both stimulate proliferation and inhibit cell death and growth arrest in fibroblasts, which appears to be a promising approach for improving the efficiency of reprogramming.
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Affiliation(s)
- Byung-Soo Chang
- Department of Cosmetology, Hanseo University, Chungnam 356-706, Republic of Korea
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12
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A 3D matrix platform for the rapid generation of therapeutic anti-human carcinoma monoclonal antibodies. Proc Natl Acad Sci U S A 2014; 111:14882-7. [PMID: 25267635 DOI: 10.1073/pnas.1410996111] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Efforts to develop unbiased screens for identifying novel function-blocking monoclonal antibodies (mAbs) in human carcinomatous states have been hampered by the limited ability to design in vitro models that recapitulate tumor cell behavior in vivo. Given that only invasive carcinoma cells gain permanent access to type I collagen-rich interstitial tissues, an experimental platform was established in which human breast cancer cells were embedded in 3D aldimine cross-linked collagen matrices and used as an immunogen to generate mAb libraries. In turn, cancer-cell-reactive antibodies were screened for their ability to block carcinoma cell proliferation within collagen hydrogels that mimic the in vivo environment. As a proof of principle, a single function-blocking mAb out of 15 identified was selected for further analysis and found to be capable of halting carcinoma cell proliferation, inducing apoptosis, and exerting global changes in gene expression in vitro. The ability of this mAb to block carcinoma cell proliferation and metastatic activity was confirmed in vivo, and the target antigen was identified by mass spectroscopy as the α2 subunit of the α2β1 integrin, one of the major type I collagen-binding receptors in mammalian cells. Validating the ability of the in vitro model to predict patterns of antigen expression in the disease setting, immunohistochemical analyses of tissues from patients with breast cancer verified markedly increased expression of the α2 subunit in vivo. These results not only highlight the utility of this discovery platform for rapidly selecting and characterizing function-blocking, anticancer mAbs in an unbiased fashion, but also identify α2β1 as a potential target in human carcinomatous states.
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13
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Vassos N, Rau T, Merkel S, Feiersinger F, Geppert CI, Stürzl M, Hohenberger W, Croner RS. Prognostic value of β1 integrin expression in colorectal liver metastases. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2013; 7:288-300. [PMID: 24427350 PMCID: PMC3885484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Accepted: 12/03/2013] [Indexed: 06/03/2023]
Abstract
UNLABELLED Integrins are cell surface adhesion molecules (CAM) that regulate via intercellular and cell-matrix signaling various cellular processes including wound healing, cell differentiation, division, growth, migration and metastatic dissemination. Although a correlation between carcinogenesis and changes in integrin expression, especially β1 integrin, has been reported, its role in colorectal liver metastases remains unclear. This study aimed to evaluate the expression of β1 integrin in colorectal liver metastases and to correlate the pattern of expression with clinicopathological features and to investigate the putative role of β1 integrin expression on survival of these patients. METHODS Formalin-fixed, paraffin-embedded (FFPE) tumor samples of 81 patients who were operated because of colorectal liver metastases without any neoadjuvant therapy were obtained and stained with hematoxylin and eosin (H & E). An immunohistochemical examination was performed using Dako, Peroxidase/DAB kit and a primary monoclonal β1 integrin (CD29, fibronectin receptor subunit beta; ab3167, Abcam plc). β1 integrin expression was evaluated according to the immunoreactive score of Remmele and Stegner and was related with clinicopathological features of prognostic significance and with disease-free and overall survival as well. Statistical analysis was performed using SPSS version 21.0. RESULTS β1 integrin was overexpressed in tumor cells in 37 (48%) patients and in stromal cell in 27 (33%) patients. The β1 expression was not statistically correlated with clinicopathological features of the primary tumors but it was statistically correlated (p=0.03) with the histological grading of liver metastases. Kaplan-Meier survival analysis showed that there is a tendency but no statistically significant correlation in disease-free and overall survival. CONCLUSION Considering that expression of β1 integrin in colorectal liver metastases remains controversial, specially its relation with survival of patients, we showed that the β1 expression represents a reliable prognostic factor regarding the grading of liver metastases of CRC and our findings imply that β1 integrin expression profiles may have further potential in identifying the stage of colorectal liver metastases and being a marker of prognosis in these patients.
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Affiliation(s)
| | - Tilman Rau
- Institute of Pathology, University Hospital ErlangenGermany
| | - Susanne Merkel
- Department of Surgery, University Hospital ErlangenGermany
| | | | | | - Michael Stürzl
- Division of Molecular and Experimental Surgery, University Hospital ErlangenGermany
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14
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Li L, Bellows CF. Doublecortin-like kinase 1 exhibits cancer stem cell-like characteristics in a human colon cancer cell line. Chin J Cancer Res 2013; 25:134-42. [PMID: 23592893 DOI: 10.3978/j.issn.1000-9604.2013.03.02] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2013] [Accepted: 03/26/2013] [Indexed: 12/21/2022] Open
Abstract
OBJECTIVE Colon cancer stem cells (CSCs) are implicated in colorectal cancer carcinogenesis, metastasis, and therapeutic resistance. The identification of these cells could help to develop novel therapeutic strategies. Doublecortin-like kinase 1 (DCLK1) has been viewed as a marker for gastrointestinal stem cells that fuel the self-renewal process, however others view them as a marker of Tuft cells or as an enteroendocrine subtype. The purpose of this study was to use a colon cancer cell line to identify and characterize the stem-like characteristics of the DCLK1+ cell population. METHODS To enrich stem-like cells, HCT116 cells (derived from colon adenocarcinomas) were cultured using serum-free media to form spheres under both normal oxygen and hypoxia condition. DCLK1 transcript expression in the adherent parental cells and spheroids was quantified using quantitative real time reverse transcription- polymerase chain reaction [(q)RT-PCR]. DCLK1 protein expression was determined using flow cytometry. Self-renewal capability from adherent parental cells and spheroids was determined using extreme limiting dilution analysis (ELDA). RESULTS Under both normal oxygen and hypoxia condition, the adherent parental cells were composed of cells that express low levels of DCLK1. However, spheroids exhibited an increased frequency of cells expressing DCLK1 on both mRNA and protein levels. Cells derived from spheroids also possess stronger self-renewal capability. CONCLUSIONS The higher fraction of DCLK1+ cells exhibited by spheroids and hypoxia reflects the stem-like characteristics of these cells. DCLK1 may represent an ideal marker to study and develop effective strategies to overcome chemo-resistance and relapse of colon cancer.
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Affiliation(s)
- Lianna Li
- Department of Surgery, Tulane University, New Orleans, LA, United States 70112; ; University of Mississippi Cancer Institute, Jackson, MS, United States 39216
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15
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Mertins SD, Scudiero DA, Hollingshead MG, Divelbiss RD, Alley MC, Monks A, Covell DG, Hite KM, Salomon DS, Niederhuber JE. A small molecule (pluripotin) as a tool for studying cancer stem cell biology: proof of concept. PLoS One 2013; 8:e57099. [PMID: 23437320 PMCID: PMC3578829 DOI: 10.1371/journal.pone.0057099] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2012] [Accepted: 01/22/2013] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Cancer stem cells (CSC) are thought to be responsible for tumor maintenance and heterogeneity. Bona fide CSC purified from tumor biopsies are limited in supply and this hampers study of CSC biology. Furthermore, purified stem-like CSC subpopulations from existing tumor lines are unstable in culture. Finding a means to overcome these technical challenges would be a useful goal. In a first effort towards this, we examined whether a chemical probe that promotes survival of murine embryonic stem cells without added exogenous factors can alter functional characteristics in extant tumor lines in a fashion consistent with a CSC phenotype. METHODOLOGY/PRINCIPAL FINDINGS The seven tumor lines of the NCI60 colon subpanel were exposed to SC-1 (pluripotin), a dual kinase and GTPase inhibitor that promotes self-renewal, and then examined for tumorigenicity under limiting dilution conditions and clonogenic activity in soft agar. A statistically significant increase in tumor formation following SC-1 treatment was observed (p<0.04). Cloning efficiencies and expression of putative CSC surface antigens (CD133 and CD44) were also increased. SC-1 treatment led to sphere formation in some colon tumor lines. Finally, SC-1 inhibited in vitro kinase activity of RSK2, and another RSK2 inhibitor increased colony formation implicating a role for this kinase in eliciting a CSC phenotype. CONCLUSIONS/SIGNIFICANCE These findings validate a proof of concept study exposure of extant tumor lines to a small molecule may provide a tractable in vitro model for understanding CSC biology.
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Affiliation(s)
- Susan D Mertins
- Screening Technologies Branch, Developmental Therapeutics Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute at Frederick, Frederick, MD, USA.
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16
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Hale JS, Li M, Lathia JD. The malignant social network: cell-cell adhesion and communication in cancer stem cells. Cell Adh Migr 2012; 6:346-55. [PMID: 22796941 DOI: 10.4161/cam.21294] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Tumors contain a vastly complicated cellular network that relies on local communication to execute malignant programs. The molecular cues that are involved in cell-cell adhesion orchestrate large-scale tumor behaviors such as proliferation and invasion. We have recently begun to appreciate that many tumors contain a high degree of cellular heterogeneity and are organized in a cellular hierarchy, with a cancer stem cell (CSC) population identified at the apex in multiple cancer types. CSCs reside in unique microenvironments or niches that are responsible for directing their behavior through cellular interactions between CSCs and stromal cells, generating a malignant social network. Identifying cell-cell adhesion mechanisms in this network has implications for the basic understanding of tumorigenesis and the development of more effective therapies. In this review, we will discuss our current understanding of cell-cell adhesion mechanisms used by CSCs and how these local interactions have global consequences for tumor biology.
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Affiliation(s)
- James S Hale
- Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH, USA
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17
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Wei B, Han XY, Qi CL, Zhang S, Zheng ZH, Huang Y, Chen TF, Wei HB. Coaction of spheroid-derived stem-like cells and endothelial progenitor cells promotes development of colon cancer. PLoS One 2012; 7:e39069. [PMID: 22745705 PMCID: PMC3383752 DOI: 10.1371/journal.pone.0039069] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2011] [Accepted: 05/18/2012] [Indexed: 12/13/2022] Open
Abstract
Although some studies described the characteristics of colon cancer stem cells (CSCs) and the role of endothelial progenitor cells (EPCs) in neovascularization, it is still controversial whether an interaction exists or not between CSCs and EPCs. In the present study, HCT116 and HT29 sphere models, which are known to be the cells enriching CSCs, were established to investigate the roles of this interaction in development and metastasis of colon cancer. Compared with their parental counterparts, spheroid cells demonstrated higher capacity of invasion, higher tumorigenic and metastatic potential. Then the in vitro and in vivo relationship between CSCs and EPCs were studied by using capillary tube formation assay and xenograft models. Our results showed that spheroid cells could promote the proliferation, migration and tube formation of EPCs through secretion of vascular endothelial growth factor (VEGF). Meanwhile, the EPCs could increase tumorigenic capacity of spheroid cells through angiogenesis. Furthermore, higher microvessel density was detected in the area enriching cancer stem cells in human colon cancer tissue. Our findings indicate that spheroid cells possess the characteristics of cancer stem cells, and the coaction of CSCs and EPCs may play an important role in the development of colon cancer.
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Affiliation(s)
- Bo Wei
- Department of Gastrointestinal Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yan Han
- Central Laboratory, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Cui-Ling Qi
- Institute of Vascular Biology, Guangdong Pharmaceutical University, Guangzhou, China
| | - Shi Zhang
- Department of Surgery, the University of Hong Kong, Hong Kong
| | - Zong-Heng Zheng
- Department of Gastrointestinal Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yong Huang
- Department of Gastrointestinal Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Tu-Feng Chen
- Department of Gastrointestinal Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hong-Bo Wei
- Department of Gastrointestinal Surgery, the Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
- * E-mail:
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18
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Ashley N. Regulation of intestinal cancer stem cells. Cancer Lett 2012; 338:120-6. [PMID: 22546285 DOI: 10.1016/j.canlet.2012.04.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2012] [Revised: 04/19/2012] [Accepted: 04/22/2012] [Indexed: 02/07/2023]
Abstract
Colorectal tumours harbour a sub-population of cells with stem like properties termed 'cancer stem cells', which are believed to ultimately drive cancer growth. This review discusses recent advances in our understanding of both normal and cancer intestinal stem cells, with emphasis on similarities and differences. Specifically we discuss the role of the Wnt, Notch and BMP pathways and their roles in both stem cell proliferation and differentiation. Furthermore we discuss the emerging role of microRNA and the influence of environmental factors such as tumour associated myofibroblasts and hypoxia on cancer stem cell regulation.
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Affiliation(s)
- Neil Ashley
- Cancer and Immunogenetics Laboratory, Weatherall Institute of Molecular Medicine, University of Oxford, John Radcliffe Hospital, Oxford OX3 9DS, United Kingdom.
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19
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Huang WS, Chin CC, Chen CN, Kuo YH, Chen TC, Yu HR, Tung SY, Shen CH, Hsieh YY, Guo SE, Shi CS, Liu TJ, Kuo HC. Stromal cell-derived factor-1/CXC receptor 4 and β1 integrin interaction regulates urokinase-type plasminogen activator expression in human colorectal cancer cells. J Cell Physiol 2012; 227:1114-22. [PMID: 21567400 DOI: 10.1002/jcp.22831] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The stromal cell-derived factor-1 (SDF-1)/CXC receptor 4 (CXCR4) axis has been shown to play a role in colorectal cancer progression. In addition, the protease urokinase-type plasminogen activator (uPA) is an important factor in tumor cell invasion and metastasis. However, the mechanism by which SDF-1 mediates uPA expression in human colorectal cancer cells remains unknown. We investigated the molecular mechanism governing the interaction between SDF-1 stimulation and uPA expression in three human colon cancer cell lines (DLD-1, SW48, and COLO 205). We found that SDF-1 stimulation led to an increase in the expression and secretion of uPA in these cells. Experiments involving specific inhibitors and small interfering RNA demonstrated that the activation of p38 mitogen-activated protein kinase (MAPK) and phosphatidylinositol 3-kinase (PI3K)/Akt pathways are critical for SDF-1-induced uPA expression. Analysis of transcription factor binding using ELISA and chromatin immunoprecipitation assays revealed that SDF-1 increased Sp1- and AP-1-DNA-binding activities in DLD-1 cells. Inhibition of Sp1 and AP-1 activation blocked the SDF-1-induced expression and activity of the uPA promoter. The effect of SDF-1 on DLD-1 signaling and uPA expression was mediated by the CXCR4/β1 integrin axis. In summary, our findings elucidate the mechanisms of SDF-1/CXCR4 downstream signaling and provide insights into the function of SDF-1 in colon cancer cells.
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Affiliation(s)
- Wen-Shih Huang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taiwan
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20
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Lim YC, Oh SY, Kim H. Cellular characteristics of head and neck cancer stem cells in type IV collagen-coated adherent cultures. Exp Cell Res 2012; 318:1104-11. [PMID: 22426199 DOI: 10.1016/j.yexcr.2012.02.038] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 02/27/2012] [Accepted: 02/29/2012] [Indexed: 12/18/2022]
Abstract
Although head and neck squamous carcinoma cancer stem cells (HNSC-CSCs) can be enriched in serum-free suspension cultures, it is difficult to stably expand HNSC-CSC lines in suspension due to spontaneous apoptosis and differentiation. Here, we investigated whether HNSC-CSCs can be expanded without loss of stem cell properties by adherent culture methods. Cell culture plates were coated with type IV collagen, laminin, or fibronectin. We examined cancer stem cell traits of adherent HNSC-CSCs grown on these plates using immunocytochemistry for stem cell marker expression and analyses of chemo-resistance and xenograft tumorigenicity. We also assessed the growth rate, apoptosis rate, and gene transduction efficiency of adherent and suspended HNSC-CSCs. HNSC-CSCs grew much faster on type IV collagen-coated plates than in suspension. Adherent HNSC-CSCs expressed putative stem cell markers (OCT4 and CD44) and were chemo-resistant to various cytotoxic drugs (cisplatin, fluorouracil, paclitaxel, and docetaxel). Adherent HNSC-CSCs at the limiting dilution (1000 cells) produced tumors in nude mice. Adherent HNSC-CSCs also showed less spontaneous apoptotic cell death and were more competent to lentiviral transduction than suspended HNSC-CSCs. In conclusion, compared to suspension cultures, adherence on type IV collagen-coated culture plates provides better experimental conditions for HNSC-CSC expansion, which should facilitate various refined cellular studies.
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Affiliation(s)
- Young Chang Lim
- Department of Otorhinolaryngology-Head and Neck Surgery, Research Institute of Medical Science, Konkuk University School of Medicine, Republic of Korea
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21
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Huang CW, Li Z, Conti PS. In vivo near-infrared fluorescence imaging of integrin α2β1 in prostate cancer with cell-penetrating-peptide-conjugated DGEA probe. J Nucl Med 2011; 52:1979-86. [PMID: 22065876 DOI: 10.2967/jnumed.111.091256] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
UNLABELLED The overexpression of integrin α(2)β(1) has been demonstrated to correlate with prostate tumor aggressiveness and metastatic potential. Recently, we reported that the DGEA peptide is a promising targeting ligand for near-infrared fluorescence and microPET imaging of integrin α(2)β(1) expression in prostate cancers. Here, we aimed to further improve the targeting efficacy of this peptide by incorporating a series of cell-penetrating peptides (CPPs) into the DGEA sequence. METHODS After the conjugation with appropriate fluorescent dyes, the CPP-DGEA peptides were evaluated in human prostate cell lines (PC-3, CWR-22, and LNCaP) that contain different integrin α(2)β(1) expression levels. In addition, to reduce excess kidney uptake, a carboxypeptidase-specific sequence Gly-Lys was incorporated into the probe design, allowing for cleavage by the kidney brush border enzymes of the CPP before uptake by proximal tubule cells. RESULTS Although the CPP motif greatly facilitated the translocation of CPP-DGEA without affecting binding specificity in vitro, fluorescent dye-labeled CPP-DGEA demonstrated extremely high kidney uptake in vivo. Kidney uptake was dramatically decreased after a carboxypeptidase-specific peptide linker (Gly-Lys) had been incorporated into the probe design. The optimized probe demonstrated a prominent accumulation of activity in PC-3 tumor (integrin α(2)β(1)-positive). Receptor specificity was confirmed with blocking experiments and evaluation in a CWR-22 control tumor model with low α(2)β(1) expression. CONCLUSION This study demonstrated that the introduction of a CPP sequence can facilitate the internalization of an integrin-targeted peptide probe in vitro. Moreover, a cleavable peptide linker successfully reduced kidney uptake while preserving good tumor uptake in vivo.
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Affiliation(s)
- Chiun-Wei Huang
- Molecular Imaging Center, Department of Radiology, University of Southern California, Los Angeles, California 90033, USA
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22
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Huang CW, Li Z, Cai H, Shahinian T, Conti PS. Novel α(2)β(1) integrin-targeted peptide probes for prostate cancer imaging. Mol Imaging 2011; 10:284-94. [PMID: 21486537 DOI: 10.2310/7290.2010.00044] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Accepted: 05/12/2010] [Indexed: 11/18/2022] Open
Abstract
Accumulating experimental evidence indicates that overexpression of α(2)β(1) integrin may correlate with progression in human prostate cancer. The objective of this study was to design a novel imaging probe based on the Asp-Gly-Glu-Ala (DGEA) peptide for near-infrared-fluorescent (NIRF) imaging of α(2)β(1) integrin expression in prostate cancer. The peptides were conjugated with appropriate fluorescent dyes, and the binding affinity of these probes was evaluated by flow cytometry in three human prostate cell lines (PC-3, CWR-22, and LNCaP). In vivo NIRF imaging of the α(2)β(1)-positive PC-3 xenograft model was performed to evaluate the α(2)β(1) targeted probe. In vitro immunofluorescence staining was carried out to confirm the α(2)β(1) integrin expression level. Flow cytometry analysis showed that PC-3 had the highest probe uptake, followed by CWR-22 and LNCaP tumor cells. In the subcutaneous PC-3 model, the tumor demonstrated prominent uptake with good tumor to background contrast. Immunohistochemistry staining also supported the in vivo optical imaging results. DGEA-based optical agents have been developed for specific imaging of α(2)β(1) integrin expression. In vitro and in vivo localization demonstrated the potential of this agent to identify tumor subtypes amenable to anti-α(2)β(1) integrin treatment and potentially provide prognostic information regarding tumor progression.
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Affiliation(s)
- Chiun-Wei Huang
- Molecular Imaging Center, Department of Radiology, University of Southern California, Los Angeles, CA 90033, USA
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Huang CW, Li Z, Cai H, Shahinian T, Conti PS. Biological Stability Evaluation of the α2β1 Receptor Imaging Agents: Diamsar and DOTA Conjugated DGEA Peptide. Bioconjug Chem 2011; 22:256-63. [DOI: 10.1021/bc100388g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Chiun-Wei Huang
- Molecular Imaging Center, Department of Radiology, University of Southern California, Los Angeles, California 90033, United States
| | - Zibo Li
- Molecular Imaging Center, Department of Radiology, University of Southern California, Los Angeles, California 90033, United States
| | - Hancheng Cai
- Molecular Imaging Center, Department of Radiology, University of Southern California, Los Angeles, California 90033, United States
| | - Tony Shahinian
- Molecular Imaging Center, Department of Radiology, University of Southern California, Los Angeles, California 90033, United States
| | - Peter S. Conti
- Molecular Imaging Center, Department of Radiology, University of Southern California, Los Angeles, California 90033, United States
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Vellón L, Royo F, Matthiesen R, Torres-Fuenzalida J, Lorenti A, Parada LA. Functional blockade of α5β1 integrin induces scattering and genomic landscape remodeling of hepatic progenitor cells. BMC Cell Biol 2010; 11:81. [PMID: 20958983 PMCID: PMC2967514 DOI: 10.1186/1471-2121-11-81] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2010] [Accepted: 10/19/2010] [Indexed: 12/12/2022] Open
Abstract
Background Cell scattering is a physiological process executed by stem and progenitor cells during embryonic liver development and postnatal organ regeneration. Here, we investigated the genomic events occurring during this process induced by functional blockade of α5β1 integrin in liver progenitor cells. Results Cells treated with a specific antibody against α5β1 integrin exhibited cell spreading and scattering, over-expression of liver stem/progenitor cell markers and activation of the ERK1/2 and p38 MAPKs signaling cascades, in a similar manner to the process triggered by HGF/SF1 stimulation. Gene expression profiling revealed marked transcriptional changes of genes involved in cell adhesion and migration, as well as genes encoding chromatin remodeling factors. These responses were accompanied by conspicuous spatial reorganization of centromeres, while integrin genes conserved their spatial positioning in the interphase nucleus. Conclusion Collectively, our results demonstrate that α5β1 integrin functional blockade induces cell migration of hepatic progenitor cells, and that this involves a dramatic remodeling of the nuclear landscape.
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Affiliation(s)
- Luciano Vellón
- Cytogenomics, CIC bioGUNE-CIBEREHD, Par, Tec, Bizkaia Ed, 801 A, 48160 - Derio, Spain
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Yu H, Mouw JK, Weaver VM. Forcing form and function: biomechanical regulation of tumor evolution. Trends Cell Biol 2010; 21:47-56. [PMID: 20870407 DOI: 10.1016/j.tcb.2010.08.015] [Citation(s) in RCA: 231] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2010] [Revised: 08/21/2010] [Accepted: 08/31/2010] [Indexed: 02/04/2023]
Abstract
Cancer cells exist in a constantly evolving tissue microenvironment of diverse cell types within a proteinaceous extracellular matrix. As tumors evolve, the physical forces within this complex microenvironment change, with pleiotropic effects on both cell- and tissue-level behaviors. Recent work suggests that these biomechanical factors direct tissue development and modulate tissue homeostasis, and, when altered, crucially influence tumor evolution. In this review, we discuss the biomechanical regulation of cell and tissue homeostasis from the molecular, cellular and tissue levels, including how modifications of this physical dialogue could contribute to cancer etiology. Because of the broad impact of biomechanical factors on cell and tissue functions, an understanding of tumor evolution from the biomechanical perspective should improve risk assessment, clinical diagnosis and the efficacy of cancer treatment.
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Affiliation(s)
- Hongmei Yu
- Department of Surgery, University of California at San Francisco, San Francisco, CA 94143, USA
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26
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The cancer stem cell concept in progression of head and neck cancer. JOURNAL OF ONCOLOGY 2009; 2009:894064. [PMID: 20052382 PMCID: PMC2800367 DOI: 10.1155/2009/894064] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/13/2009] [Accepted: 09/14/2009] [Indexed: 01/06/2023]
Abstract
Human head and neck cancer (HNC) is a highly heterogeneous disease. Understanding the biology of HNC progression is necessary for the development of novel approaches to its prevention, early detection, and treatment. A current evolutional progression model has limitations in explaining the heterogeneity observed in a single tumor nest. Accumulating evidence supports the existence of cancer stem cells (CSCs) as small subpopulations in solid tumors, including HNC. These CSCs can be selected by appropriate cell surface markers, which are cancer type specific and have been confirmed by unique in vitro and in vivo assays. Selected CSC populations maintain a self-renewal capability and show aggressive behaviors, such as chemoresistance and metastasis. In addition to introducing the CSC concept in solid tumors, this short review summarizes current publications in HNC CSC and the prospective development and application of the CSC concept to HNC in the clinic.
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Maenhaut C, Dumont JE, Roger PP, van Staveren WCG. Cancer stem cells: a reality, a myth, a fuzzy concept or a misnomer? An analysis. Carcinogenesis 2009; 31:149-58. [PMID: 19858069 DOI: 10.1093/carcin/bgp259] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
The concept of cancer stem cells (CSC) embodies two aspects: the stem cell as the initial target of the oncogenic process and the existence of two populations of cells in cancers: the CSC and derived cells. The second is discussed in this review. CSC are defined as cells having three properties: a selectively endowed tumorigenic capacity, an ability to recreate the full repertoire of cancer cells of the parent tumor and the expression of a distinctive repertoire of surface biomarkers. In operational terms, the CSC are among all cancer cells those able to initiate a xenotransplant. Other explicit or implicit assumptions exist, including the concept of CSC as a single unique infrequent population of cells. To avoid such assumptions, we propose to use the operational term tumor-propagating cells (TPC); indeed, the cells that initiate transplants did not initiate the cancer. The experimental evidence supporting the explicit definition is analyzed. Cancers indeed contain a fraction of cells mainly responsible for the tumor development. However, there is evidence that these cells do not represent one homogenous population. Moreover, there is no evidence that the derived cells result from an asymmetric, qualitative and irreversible process. A more general model is proposed of which the CSC model could be one extreme case. We propose that the TPC are multiple evolutionary selected cancer cells with the most competitive properties [maintained by (epi-)genetic mechanisms], at least partially reversible, quantitative rather than qualitative and resulting from a stochastic rather than deterministic process.
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Affiliation(s)
- C Maenhaut
- Institute of Interdisciplinary Research (IRIBHM), School of Medicine, Université Libre de Bruxelles, Campus Erasme Hospital, Brussels, Belgium
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Kirkland SC. Type I collagen inhibits differentiation and promotes a stem cell-like phenotype in human colorectal carcinoma cells. Br J Cancer 2009; 101:320-6. [PMID: 19568234 PMCID: PMC2720218 DOI: 10.1038/sj.bjc.6605143] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background: Human colorectal cancer is caused by mutations and is thought to be maintained by a population of cancer stem cells. Further phenotypic changes occurring at the invasive edge suggest that colon cancer cells are also regulated by their microenvironment. Type I collagen, a promoter of the malignant phenotype in pancreatic carcinoma cells, is highly expressed at the invasive front of human colorectal cancer. Methods: This study investigates the role of type I collagen in specifying the colorectal cancer cell phenotype. The effect of type I collagen on morphology, localisation of cell–cell adhesion proteins, differentiation and stem cell-like characteristics was examined in a panel of human colorectal carcinoma cell lines. Results: Human colorectal carcinoma cells grown on type I collagen in serum-free medium show an epithelial–mesenchymal-like transition (EMT-like), assuming a more flattened less cohesive morphology. Type I collagen downregulates E-cadherin and β-catenin at cell–cell junctions. Furthermore, type I collagen inhibits differentiation, increases clonogenicity and promotes expression of stem cell markers CD133 and Bmi1. Type I collagen effects were partially abrogated by a function-blocking antibody to α2 integrin. Conclusion: Together, these results indicate that type I collagen promotes expression of a stem cell-like phenotype in human colorectal cancer cells likely through α2β1 integrin.
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Affiliation(s)
- S C Kirkland
- Department of Histopathology, Imperial College London, DuCane Road, London W12 ONN, UK.
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Paschos KA, Canovas D, Bird NC. The role of cell adhesion molecules in the progression of colorectal cancer and the development of liver metastasis. Cell Signal 2009; 21:665-74. [DOI: 10.1016/j.cellsig.2009.01.006] [Citation(s) in RCA: 139] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Accepted: 01/02/2009] [Indexed: 11/26/2022]
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