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Paglia EB, Baldin EKK, Freitas GP, Santiago TSA, Neto JBMR, Silva JVL, Carvalho HF, Beppu MM. Circulating Tumor Cells Adhesion: Application in Biosensors. BIOSENSORS 2023; 13:882. [PMID: 37754116 PMCID: PMC10526177 DOI: 10.3390/bios13090882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 08/23/2023] [Accepted: 09/01/2023] [Indexed: 09/28/2023]
Abstract
The early and non-invasive diagnosis of tumor diseases has been widely investigated by the scientific community focusing on the development of sensors/biomarkers that act as a way of recognizing the adhesion of circulating tumor cells (CTCs). As a challenge in this area, strategies for CTCs capture and enrichment currently require improvements in the sensors/biomarker's selectivity. This can be achieved by understanding the biological recognition factors for different cancer cell lines and also by understanding the interaction between surface parameters and the affinity between macromolecules and the cell surface. To overcome some of these concerns, electrochemical sensors have been used as precise, fast-response, and low-cost transduction platforms for application in cytosensors. Additionally, distinct materials, geometries, and technologies have been investigated to improve the sensitivity and specificity properties of the support electrode that will transform biochemical events into electrical signals. This review identifies novel approaches regarding the application of different specific biomarkers (CD44, Integrins, and EpCAm) for capturing CTCs. These biomarkers can be applied in electrochemical biosensors as a cytodetection strategy for diagnosis of cancerous diseases.
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Affiliation(s)
- Eduarda B. Paglia
- School of Chemical Engineering, Department of Process and Product Development, University of Campinas, Campinas 13083-852, Brazil; (E.B.P.); (E.K.K.B.); (G.P.F.); (T.S.A.S.)
| | - Estela K. K. Baldin
- School of Chemical Engineering, Department of Process and Product Development, University of Campinas, Campinas 13083-852, Brazil; (E.B.P.); (E.K.K.B.); (G.P.F.); (T.S.A.S.)
- Renato Archer Information Technology Center, Campinas 13069-901, Brazil;
| | - Gabriela P. Freitas
- School of Chemical Engineering, Department of Process and Product Development, University of Campinas, Campinas 13083-852, Brazil; (E.B.P.); (E.K.K.B.); (G.P.F.); (T.S.A.S.)
- Renato Archer Information Technology Center, Campinas 13069-901, Brazil;
| | - Thalyta S. A. Santiago
- School of Chemical Engineering, Department of Process and Product Development, University of Campinas, Campinas 13083-852, Brazil; (E.B.P.); (E.K.K.B.); (G.P.F.); (T.S.A.S.)
| | - João B. M. R. Neto
- Technology Center, Federal University of Alagoas, Maceió 57072-900, Brazil;
| | - Jorge V. L. Silva
- Renato Archer Information Technology Center, Campinas 13069-901, Brazil;
| | - Hernandes F. Carvalho
- Institute of Biology, Department of Structural and Functional Biology, University of Campinas, Campinas 13083-864, Brazil;
| | - Marisa M. Beppu
- School of Chemical Engineering, Department of Process and Product Development, University of Campinas, Campinas 13083-852, Brazil; (E.B.P.); (E.K.K.B.); (G.P.F.); (T.S.A.S.)
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2
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Yoon HY, Maron BY, Girald-Berlingeri S, Gasilina A, Gollin JC, Jian X, Akpan I, Yohe ME, Randazzo PA, Chen PW. ERK phosphorylation is dependent on cell adhesion in a subset of pediatric sarcoma cell lines. BIOCHIMICA ET BIOPHYSICA ACTA. MOLECULAR CELL RESEARCH 2022; 1869:119264. [PMID: 35381293 DOI: 10.1016/j.bbamcr.2022.119264] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 03/15/2022] [Accepted: 03/28/2022] [Indexed: 06/14/2023]
Abstract
Osteosarcoma (OS) and Pax-Foxo1 fusion negative rhabdomyosarcoma (FN-RMS) are pediatric sarcomas with poor prognoses in patients with advanced disease. In both malignancies, an actin binding protein has been linked to poor prognosis. Integrin adhesion complexes (IACs) are closely coupled to actin networks and IAC-mediated signaling has been implicated in the progression of carcinomas. However, the relationship of IACs and actin cytoskeleton remodeling with cell signaling is understudied in pediatric sarcomas. Here, we tested the hypothesis that IAC dynamics affect ERK activation in OS and FN-RMS cell lines. Adhesion dependence of ERK activation differed among the OS and FN-RMS cells examined. In the OS cell lines, adhesion did not have a consistent effect on phospho-ERK (pERK). ERK phosphorylation in response to fetal calf serum or 1 ng/ml EGF was nearly as efficient in OS cell lines and one FN-RMS cell line in suspension as cells adherent to poly-l-lysine (PL) or fibronectin (FN). By contrast, adhesion to plastic, PL or FN increased ERK phosphorylation and was greater than additive with a 15 min exposure to 1 ng/ml EGF in three FN-RMS cell lines. Increases in pERK were partly dependent on FAK and PAK1/2 but independent of IAC maturation. As far as we are aware, this examination of adhesion-dependent signaling is the first in pediatric sarcomas and has led to the discovery of differences from the prevailing paradigms and differences in the degree of coupling between components in the signaling pathways among the cell lines.
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Affiliation(s)
- Hye-Young Yoon
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Ben Y Maron
- Department of Biology, Williams College, Williamstown, MA, United States of America
| | - Sofia Girald-Berlingeri
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Anjelika Gasilina
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Josephine C Gollin
- Department of Biology, Williams College, Williamstown, MA, United States of America
| | - Xiaoying Jian
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Itoro Akpan
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America
| | - Marielle E Yohe
- Laboratory of Cell and Developmental Signaling, Center for Cancer Research, National Cancer Institute, Frederick, MD, United States of America
| | - Paul A Randazzo
- Laboratory of Cellular and Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, United States of America.
| | - Pei-Wen Chen
- Department of Biology, Williams College, Williamstown, MA, United States of America
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3
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Tune BXJ, Sim MS, Poh CL, Guad RM, Woon CK, Hazarika I, Das A, Gopinath SCB, Rajan M, Sekar M, Subramaniyan V, Fuloria NK, Fuloria S, Batumalaie K, Wu YS. Matrix Metalloproteinases in Chemoresistance: Regulatory Roles, Molecular Interactions, and Potential Inhibitors. JOURNAL OF ONCOLOGY 2022; 2022:3249766. [PMID: 35586209 PMCID: PMC9110224 DOI: 10.1155/2022/3249766] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 04/11/2022] [Accepted: 04/19/2022] [Indexed: 02/08/2023]
Abstract
Cancer is one of the major causes of death worldwide. Its treatments usually fail when the tumor has become malignant and metastasized. Metastasis is a key source of cancer recurrence, which often leads to resistance towards chemotherapeutic agents. Hence, most cancer-related deaths are linked to the occurrence of chemoresistance. Although chemoresistance can emerge through a multitude of mechanisms, chemoresistance and metastasis share a similar pathway, which is an epithelial-to-mesenchymal transition (EMT). Matrix metalloproteinases (MMPs), a class of zinc and calcium-chelated enzymes, are found to be key players in driving cancer migration and metastasis through EMT induction. The aim of this review is to discuss the regulatory roles and associated molecular mechanisms of specific MMPs in regulating chemoresistance, particularly EMT initiation and resistance to apoptosis. A brief presentation on their potential diagnostic and prognostic values was also deciphered. It also aimed to describe existing MMP inhibitors and the potential of utilizing other strategies to inhibit MMPs to reduce chemoresistance, such as upstream inhibition of MMP expressions and MMP-responsive nanomaterials to deliver drugs as well as epigenetic regulations. Hence, manipulation of MMP expression can be a powerful tool to aid in treating patients with chemo-resistant cancers. However, much still needs to be done to bring the solution from bench to bedside.
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Affiliation(s)
- Bernadette Xin Jie Tune
- Department of Pharmaceutical Life Sciences, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Maw Shin Sim
- Department of Pharmaceutical Life Sciences, Faculty of Pharmacy, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Chit Laa Poh
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, Selangor 47500, Malaysia
| | - Rhanye Mac Guad
- Department of Biomedical Science and Therapeutics, Faculty of Medicine and Health Science, Universiti Malaysia Sabah, Kota Kinabalu, 88400 Sabah, Malaysia
| | - Choy Ker Woon
- Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, 47000 Selangor, Malaysia
| | - Iswar Hazarika
- Department of Pharmacology, Girijananda Chowdhury Institute of Pharmaceutical Science, Guwahati 781017, India
| | - Anju Das
- Department of Pharmacology, Royal School of Pharmacy, Royal Global University, Guwahati 781035, India
| | - Subash C. B. Gopinath
- Faculty of Chemical Engineering Technology, Universiti Malaysia Perlis (UniMAP), Arau, 02600 Perlis, Malaysia
- Institute of Nano Electronic Engineering, Universiti Malaysia Perlis, Kangar, 01000 Perlis, Malaysia
| | - Mariappan Rajan
- Department of Natural Products Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai 625021, India
| | - Mahendran Sekar
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy and Health Sciences, Royal College of Medicine Perak, Universiti Kuala Lumpur, Ipoh 30450, Perak, Malaysia
| | - Vetriselvan Subramaniyan
- Department of Pharmacology, School of Medicine, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Selangor 42610, Malaysia
| | | | - Shivkanya Fuloria
- Faculty of Pharmacy, AIMST University, Semeling, Bedong, Kedah 08100, Malaysia
| | - Kalaivani Batumalaie
- Department of Biomedical Sciences, Faculty of Health Sciences, Asia Metropolitan University, 81750 Johor Bahru, Malaysia
| | - Yuan Seng Wu
- Centre for Virus and Vaccine Research, School of Medical and Life Sciences, Sunway University, Selangor 47500, Malaysia
- Department of Biological Sciences, School of Medical and Life Sciences, Sunway University, Selangor 47500, Malaysia
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4
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Valencia FP, Marino AF, Noutsos C, Poon K. Concentration-dependent change in hypothalamic neuronal transcriptome by the dietary fatty acids: oleic and palmitic acids. J Nutr Biochem 2022; 106:109033. [DOI: 10.1016/j.jnutbio.2022.109033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 12/20/2021] [Accepted: 03/18/2022] [Indexed: 11/30/2022]
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5
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Valdoz JC, Johnson BC, Jacobs DJ, Franks NA, Dodson EL, Sanders C, Cribbs CG, Van Ry PM. The ECM: To Scaffold, or Not to Scaffold, That Is the Question. Int J Mol Sci 2021; 22:12690. [PMID: 34884495 PMCID: PMC8657545 DOI: 10.3390/ijms222312690] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/14/2022] Open
Abstract
The extracellular matrix (ECM) has pleiotropic effects, ranging from cell adhesion to cell survival. In tissue engineering, the use of ECM and ECM-like scaffolds has separated the field into two distinct areas-scaffold-based and scaffold-free. Scaffold-free techniques are used in creating reproducible cell aggregates which have massive potential for high-throughput, reproducible drug screening and disease modeling. Though, the lack of ECM prevents certain cells from surviving and proliferating. Thus, tissue engineers use scaffolds to mimic the native ECM and produce organotypic models which show more reliability in disease modeling. However, scaffold-based techniques come at a trade-off of reproducibility and throughput. To bridge the tissue engineering dichotomy, we posit that finding novel ways to incorporate the ECM in scaffold-free cultures can synergize these two disparate techniques.
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Affiliation(s)
| | | | | | | | | | | | | | - Pam M. Van Ry
- Department of Chemistry and Biochemistry, Brigham Young University, Provo, UT 84602, USA; (J.C.V.); (B.C.J.); (D.J.J.); (N.A.F.); (E.L.D.); (C.S.); (C.G.C.)
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6
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Xiong J, Yan L, Zou C, Wang K, Chen M, Xu B, Zhou Z, Zhang D. Integrins regulate stemness in solid tumor: an emerging therapeutic target. J Hematol Oncol 2021; 14:177. [PMID: 34715893 PMCID: PMC8555177 DOI: 10.1186/s13045-021-01192-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 10/14/2021] [Indexed: 02/08/2023] Open
Abstract
Integrins are the adhesion molecules and transmembrane receptors that consist of α and β subunits. After binding to extracellular matrix components, integrins trigger intracellular signaling and regulate a wide spectrum of cellular functions, including cell survival, proliferation, differentiation and migration. Since the pattern of integrins expression is a key determinant of cell behavior in response to microenvironmental cues, deregulation of integrins caused by various mechanisms has been causally linked to cancer development and progression in several solid tumor types. In this review, we discuss the integrin signalosome with a highlight of a few key pro-oncogenic pathways elicited by integrins, and uncover the mutational and transcriptomic landscape of integrin-encoding genes across human cancers. In addition, we focus on the integrin-mediated control of cancer stem cell and tumor stemness in general, such as tumor initiation, epithelial plasticity, organotropic metastasis and drug resistance. With insights into how integrins contribute to the stem-like functions, we now gain better understanding of the integrin signalosome, which will greatly assist novel therapeutic development and more precise clinical decisions.
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Affiliation(s)
- Jiangling Xiong
- School of Biomedical Sciences, Hunan University, Changsha, 410082, Hunan Province, China.,College of Biology, Hunan University, Changsha, 410082, Hunan Province, China
| | - Lianlian Yan
- School of Biomedical Sciences, Hunan University, Changsha, 410082, Hunan Province, China.,College of Biology, Hunan University, Changsha, 410082, Hunan Province, China
| | - Cheng Zou
- School of Biomedical Sciences, Hunan University, Changsha, 410082, Hunan Province, China.,College of Biology, Hunan University, Changsha, 410082, Hunan Province, China
| | - Kai Wang
- Department of Urology, School of Medicine, Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China
| | - Mengjie Chen
- School of Biomedical Sciences, Hunan University, Changsha, 410082, Hunan Province, China.,College of Biology, Hunan University, Changsha, 410082, Hunan Province, China
| | - Bin Xu
- Department of Urology, School of Medicine, Affiliated Zhongda Hospital of Southeast University, Nanjing, 210009, Jiangsu Province, China.
| | - Zhipeng Zhou
- College of Life Science and Technology, Huazhong Agricultural University, Wuhan, 430070, Hubei Province, China.
| | - Dingxiao Zhang
- School of Biomedical Sciences, Hunan University, Changsha, 410082, Hunan Province, China. .,College of Biology, Hunan University, Changsha, 410082, Hunan Province, China.
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8
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Goyer B, Thériault M, Gendron SP, Brunette I, Rochette PJ, Proulx S. Extracellular Matrix and Integrin Expression Profiles in Fuchs Endothelial Corneal Dystrophy Cells and Tissue Model. Tissue Eng Part A 2017; 24:607-615. [PMID: 28726551 PMCID: PMC5905948 DOI: 10.1089/ten.tea.2017.0128] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Primary corneal endothelial cell (CEC) cultures and 3D-engineered tissue models were used to study the aberrant deposition of extracellular matrix (ECM) in a vision impairing pathology known as Fuchs endothelial corneal dystrophy (FECD). CECs were isolated from excised Descemet membranes of patients with end-stage FECD. CECs isolated from healthy corneas served as controls. Microarray gene profiling was performed on postconfluent cultures of healthy and FECD cells. Protein expression analyses were conducted on tissue models that were engineered by seeding an endothelium on previously devitalized human stromal carriers. The engineered endothelia were kept in culture for 1-3 weeks to reform the endothelial monolayer. Protein expression of integrin subunits α4, α6, αv, and β1, as well as laminin, type IV collagen, fibronectin, clusterin, and transforming growth factor β-induced protein (TGFβIp) was then assessed by immunofluorescence. Microarray analysis showed nonstatistical twofold downregulation of collagen-coding genes (COL4A4, COL8A2, and COL21A1) and a twofold upregulation of the COL6A1, laminin α3 gene LAMA3, and integrin subunit α10 gene ITGA10 in FECD cells. Fibronectin type III domain containing 4 (FNDC4) and integrin β5 (ITGB5) genes was significantly upregulated in FECD cells. Immunostainings demonstrated that the protein expression of the integrin subunits α4, α6, αv, and β1, type IV collagen, as well as laminin remained similar between native and engineered endothelia. TGFβIp expression was found on the stromal side of both FECD and healthy Descemet's membrane, and only one out of three FECD specimens was positive for the clusterin protein. Interestingly, the ECM protein fibronectin was also found to have a stronger presence on engineered FECD tissues, a result consistent with the native FECD specimens. To conclude, this study allowed to identify fibronectin deposition as one of the first steps in the pathogenesis of FECD, as defined by our engineered tissue model. This opens the way to an entirely new perspective for in vitro pharmacological testing of new therapies for FECD, the leading indication for corneal transplantation in North America.
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Affiliation(s)
- Benjamin Goyer
- 1 Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement , Québec, Canada .,2 Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX , Québec, Canada
| | - Mathieu Thériault
- 1 Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement , Québec, Canada .,2 Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX , Québec, Canada
| | - Sébastien P Gendron
- 1 Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement , Québec, Canada .,2 Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX , Québec, Canada
| | - Isabelle Brunette
- 3 Centre Universitaire d'Ophtalmologie de l'Université de Montréal et Centre de Recherche de l'Hôpital Maisonneuve-Rosemont , CIUSSS-E, Montréal, Canada .,4 Hôpital Maisonneuve-Rosemont Research Center , CIUSSS-E, Montréal, Canada
| | - Patrick J Rochette
- 1 Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement , Québec, Canada .,2 Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX , Québec, Canada .,5 Département d'Ophtalmologie et d'Oto-Rhino-Laryngologie-Chirurgie Cervico-Faciale, Faculté de Médecine, Université Laval , Québec, Canada
| | - Stéphanie Proulx
- 1 Centre de Recherche du CHU de Québec-Université Laval, Axe Médecine Régénératrice, Hôpital du Saint-Sacrement , Québec, Canada .,2 Centre de Recherche en Organogénèse Expérimentale de l'Université Laval/LOEX , Québec, Canada .,5 Département d'Ophtalmologie et d'Oto-Rhino-Laryngologie-Chirurgie Cervico-Faciale, Faculté de Médecine, Université Laval , Québec, Canada
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9
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Distinct Effects of Integrins αXβ2 and αMβ2 on Leukocyte Subpopulations during Inflammation and Antimicrobial Responses. Infect Immun 2016; 85:IAI.00644-16. [PMID: 27799334 DOI: 10.1128/iai.00644-16] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Accepted: 10/20/2016] [Indexed: 12/18/2022] Open
Abstract
Integrins αMβ2 and αXβ2 are homologous adhesive receptors that are expressed on many of the same leukocyte populations and bind many of the same ligands. Although αMβ2 was extensively characterized and implicated in leukocyte inflammatory and immune functions, the roles of αXβ2 remain largely obscure. Here, we tested the ability of mice deficient in integrin αMβ2 or αXβ2 to deal with opportunistic infections and the capacity of cells derived from these animals to execute inflammatory functions. The absence of αMβ2 affected the recruitment of polymorphonuclear neutrophils (PMN) to bacterial and fungal pathogens as well as to model inflammatory stimuli, and αMβ2-deficient PMN displayed defective inflammatory functions. In contrast, deficiency of αXβ2 abrogated intraperitoneal recruitment and adhesive functions of monocytes and macrophages (Mϕ) and the ability of these cells to kill/phagocytose Candida albicans or Escherichia coli cells both ex vivo and in vivo During systemic candidiasis, the absence of αXβ2 resulted in the loss of antifungal activity by tissue Mϕ and inhibited the production of tumor necrosis factor alpha (TNF-α)/interleukin-6 (IL-6) in infected kidneys. Deficiency of αMβ2 suppressed Mϕ egress from the peritoneal cavity, decreased the production of anti-inflammatory IL-10, and stimulated the secretion of IL-6. The absence of αXβ2, but not of αMβ2, increased survival against a septic challenge with lipopolysaccharide (LPS) by 2-fold. Together, these results suggest that αMβ2 plays a primary role in PMN inflammatory functions and regulates the anti-inflammatory functions of Mϕ, whereas αXβ2 is central in the regulation of inflammatory functions of recruited and tissue-resident Mϕ.
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Abstract
Arginine-glycine-aspartate (RGD)-binding integrins, including αvβ1, αvβ3, αvβ5, αvβ6, αvβ8, α5β1, αIIbβ3, and α8β1, recognize the tripeptide motif RGD in their ligands. RGD-binding integrins are involved in various cell functions, including cell proliferation, survival, differentiation, and motility that are critically important to both health and disease. The diagnostic and therapeutic value of some RGD-binding integrin inhibitors are either clinically proven or at different stages of development. In this review, we first summarized the structure and signaling characteristics of RGD-binding integrins. We then discussed the functions of RGD-binding integrins and their association with human disease. Finally, we recapitulated the research efforts and clinical trials of targeting RGD-binding integrins for the diagnosis and treatment of human disease. This comprehensive review of the current advances in RGD-binding integrins could assist scientists and clinicians in gaining a complete understanding of this group of molecules. It can also contribute to the design of new projects to further advance this field of research and to better apply the research results to benefit patients in clinical practice.
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11
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Saviola AJ, Burns PD, Mukherjee AK, Mackessy SP. The disintegrin tzabcanin inhibits adhesion and migration in melanoma and lung cancer cells. Int J Biol Macromol 2016; 88:457-64. [DOI: 10.1016/j.ijbiomac.2016.04.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/02/2016] [Accepted: 04/04/2016] [Indexed: 01/06/2023]
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12
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Lebreton L, Tuffigo M, Pillois X, Fiore M. [New perspectives on the role of αIIbβ3 integrin in defective megakaryopoiesis]. Med Sci (Paris) 2016; 32:290-6. [PMID: 27011248 DOI: 10.1051/medsci/20163203014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
In recent years, the understanding of the molecular mechanisms involved in platelet production (megakaryopoiesis) has extremely increased, thanks to the study of genetic diseases causing inherited thrombocytopenia. Among the wide variety of transmembrane receptors covering the platelet membrane, αIIbβ3 integrin is the major one, allowing platelets to aggregate upon the occurrence of vascular breach. Platelet counts are usually normal in patients with αIIbβ3 deficiency, suggesting that its role for normal platelet production and morphology is very limited. However, recently, new clinical observations of genetic diseases provided evidence against this hypothesis, bringing new data on the role of αIIbβ3 integrin in defective megakaryopoiesis.
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Affiliation(s)
- Louis Lebreton
- Université Victor Segalen, 146, rue Léo Saignat, 33000, Bordeaux, France
| | - Marie Tuffigo
- Université Victor Segalen, 146, rue Léo Saignat, 33000, Bordeaux, France - Laboratoire d'hématologie, CHU de Bordeaux, avenue Magellan, 33604, Pessac, France
| | - Xavier Pillois
- Centre de référence des pathologies plaquettaires, avenue Magellan, 33604, Pessac, France
| | - Mathieu Fiore
- Laboratoire d'hématologie, CHU de Bordeaux, avenue Magellan, 33604, Pessac, France - Centre de référence des pathologies plaquettaires, avenue Magellan, 33604, Pessac, France
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13
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Robertson J, Jacquemet G, Byron A, Jones MC, Warwood S, Selley JN, Knight D, Humphries JD, Humphries MJ. Defining the phospho-adhesome through the phosphoproteomic analysis of integrin signalling. Nat Commun 2015; 6:6265. [PMID: 25677187 PMCID: PMC4338609 DOI: 10.1038/ncomms7265] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2014] [Accepted: 01/09/2015] [Indexed: 01/09/2023] Open
Abstract
Cell–extracellular matrix (ECM) adhesion is a fundamental requirement for multicellular existence due to roles in positioning, proliferation and differentiation. Phosphorylation plays a major role in adhesion signalling; however, a full understanding of the phosphorylation events that occur at sites of adhesion is lacking. Here we report a proteomic and phosphoproteomic analysis of adhesion complexes isolated from cells spread on fibronectin. We identify 1,174 proteins, 499 of which are phosphorylated (1,109 phosphorylation sites), including both well-characterized and novel adhesion-regulated phosphorylation events. Immunoblotting suggests that two classes of phosphorylated residues are found at adhesion sites—those induced by adhesion and those constitutively phosphorylated but recruited in response to adhesion. Kinase prediction analysis identifies novel kinases with putative roles in adhesion signalling including CDK1, inhibition of which reduces adhesion complex formation. This phospho-adhesome data set constitutes a valuable resource to improve our understanding of the signalling mechanisms through which cell–ECM interactions control cell behaviour. Protein phosphorylation is known to play an important role in cell adhesion signalling. Robertson et al. present a proteomic resource mapping the phosphorylation states of proteins isolated from adhesion complexes and, taking advantage of this data set, show that the cell cycle kinase CDK1 may influence cell adhesion.
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Affiliation(s)
- Joseph Robertson
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Guillaume Jacquemet
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Adam Byron
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Matthew C Jones
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Stacey Warwood
- Biological Mass Spectrometry Core Facility, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Julian N Selley
- Biological Mass Spectrometry Core Facility, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - David Knight
- Biological Mass Spectrometry Core Facility, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Jonathan D Humphries
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
| | - Martin J Humphries
- Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, UK
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15
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Vasconcelos DDM, Beitler B, Martinez GA, Pereira J, Amigo Filho JU, Klautau GB, Lian YC, Della Negra M, Duarte AJDS. CD18 deficiency evolving to megakaryocytic (M7) acute myeloid leukemia: case report. Blood Cells Mol Dis 2014; 53:180-4. [PMID: 25106692 DOI: 10.1016/j.bcmd.2014.07.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/08/2014] [Accepted: 07/08/2014] [Indexed: 12/14/2022]
Abstract
Leukocyte adhesion deficiency type 1 (LAD 1 - CD18 deficiency) is a rare disease characterized by disturbance of phagocyte function associated with less severe cellular and humoral dysfunction. The main features are bacterial and fungal infections predominantly in the skin and mucosal surfaces, impaired wound healing and delayed umbilical cord separation. The infections are indolent, necrotic and recurrent. In contrast to the striking difficulties in defense against bacterial and fungal microorganisms, LAD 1 patients do not exhibit susceptibility to viral infections and neoplasias. The severity of clinical manifestations is directly related to the degree of CD18 deficiency. Here, a 20 year-old female presenting a partial CD18 deficiency that developed a megakaryocytic (M7) acute myeloid leukemia is described for the first time. The clinical features of the patient included relapsing oral thrush due to Candida, cutaneous infections and upper and lower respiratory tract infections, followed by a locally severe necrotic genital herpetic lesion. The patient's clinical features improved for a period of approximately two years, followed by severe bacterial infections. At that time, the investigation showed a megakaryocytic acute myeloid leukemia, treated with MEC without clinical improvement. The highly aggressive evolution of the leukemia in this patient suggests that adhesion molecules could be involved in the protection against the spread of neoplastic cells.
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Affiliation(s)
- Dewton de Moraes Vasconcelos
- Medical Investigation Laboratory Unit 56 (LIM/56), Faculdade de Medicina da Universidade de São Paulo, Brazil; Primary Immunodeficiency Outpatient Unit (ADEE-3003), Faculdade de Medicina da Universidade de São Paulo, Brazil.
| | - Beatriz Beitler
- Hematology Division, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - Gracia A Martinez
- Hematology Division, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - Juliana Pereira
- Hematology Division, Faculdade de Medicina da Universidade de São Paulo, Brazil
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Hopkins AM, Wheeler B, Staii C, Kaplan DL, Atherton TJ. Semi-automatic quantification of neurite fasciculation in high-density neurite images by the neurite directional distribution analysis (NDDA). J Neurosci Methods 2014; 228:100-9. [PMID: 24680908 DOI: 10.1016/j.jneumeth.2014.03.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 03/12/2014] [Accepted: 03/13/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND Bundling of neurite extensions occur during nerve development and regeneration. Understanding the factors that drive neurite bundling is important for designing biomaterials for nerve regeneration toward the innervation target and preventing nociceptive collateral sprouting. High-density neuron cultures including dorsal root ganglia explants are employed for in vitro screening of biomaterials designed to control directional outgrowth. Although some semi-automated image processing methods exist for quantification of neurite outgrowth, methods to quantify axonal fasciculation in terms of direction of neurite outgrowth are lacking. NEW METHOD This work presents a semi-automated program to analyze micrographs of high-density neurites; the program aims to quantify axonal fasciculation by determining the orientational distribution function of the tangent vectors of the neurites and calculating its Fourier series coefficients ('c' values). RESULTS We found that neurite directional distribution analysis (NDDA) of fasciculated neurites yielded 'c' values of ≥∼0.25 whereas branched outgrowth led to statistically significant lesser values of <∼0.2. The 'c' values correlated directly to the width of neurite bundles and indirectly to the number of branching points. COMPARISON WITH EXISTING METHODS Information about the directional distribution of outgrowth is lost in simple counting methods or achieved laboriously through manual analysis. The NDDA supplements previous quantitative analyses of axonal bundling using a vector-based approach that captures new information about the directionality of outgrowth. CONCLUSION The NDDA is a valuable addition to open source image processing tools available to biomedical researchers offering a robust, precise approach to quantification of imaged features important in tissue development, disease, and repair.
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Affiliation(s)
- Amy M Hopkins
- Department of Biomedical Engineering, Tufts University Science & Technology Center, 4 Colby Street, Medford, MA 02155, USA.
| | - Brandon Wheeler
- Department of Biomedical Engineering, Tufts University Science & Technology Center, 4 Colby Street, Medford, MA 02155, USA.
| | - Cristian Staii
- Department of Physics and Astronomy, and Center for Nanoscopic Physics, Tufts University Science & Technology Center, 4 Colby Street, Medford, MA 02155, USA.
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University Science & Technology Center, 4 Colby Street, Medford, MA 02155, USA.
| | - Timothy J Atherton
- Department of Physics and Astronomy, and Center for Nanoscopic Physics, Tufts University Science & Technology Center, 4 Colby Street, Medford, MA 02155, USA.
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Patterson K, Yang R, Zeng B, Song B, Wang S, Xi N, Basson M. Measurement of cationic and intracellular modulation of integrin binding affinity by AFM-based nanorobot. Biophys J 2013; 105:40-47. [PMID: 23823222 PMCID: PMC3699737 DOI: 10.1016/j.bpj.2013.05.052] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2013] [Revised: 05/12/2013] [Accepted: 05/30/2013] [Indexed: 11/23/2022] Open
Abstract
Integrins are dynamic transmembrane cation-dependent heterodimers that both anchor cells in position and transduce signals into and out of cells. We used an atomic force microscope (AFM)-based nanorobotic system to measure integrin-binding forces in intact human intestinal epithelial Caco-2 cells. The AFM-based nanorobot enables human-directed, high-accuracy probe positioning and site-specific investigations. Functionalizing the AFM probe with an arginine-glycine-aspartate (RGD)-containing sequence (consensus binding sequence for integrins) allowed us to detect a series of peptide-cell membrane interactions with a median binding force of 115.1 ± 4.9 pN that were not detected in control interactions. Chelating divalent cations from the culture medium abolished these interactions, as did inhibiting intracellular focal adhesion kinase (FAK) using Y15. Adding 1 mM Mg(2+) to the medium caused a rightward shift in the force-binding curve. Adding 1 mM Ca(2+) virtually abolished the RGD-membrane specific interactions and blocked the Mg(2+) effects. Cell adhesion assays demonstrated parallel effects of divalent cations and the FAK inhibitor on cell adhesion. These results demonstrate direct modulation of integrin-binding affinity by both divalent cations and intracellular signal inhibition. Additionally, three binding states (nonspecific, specific inactivated, and specific activated) were delineated from affinity measurements. Although other research has assumed that this process of integrin conformational change causes altered ligand binding, in this work we directly measured these three states in individual integrins in a physiologically based study.
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Affiliation(s)
- Kevin C. Patterson
- College of Human Medicine, Michigan State University, East Lansing, Michigan
| | - Ruiguo Yang
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, Michigan
| | - Bixi Zeng
- College of Human Medicine, Michigan State University, East Lansing, Michigan
| | - Bo Song
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, Michigan
| | - Shouye Wang
- Department of Surgery, Michigan State University, East Lansing, Michigan
| | - Ning Xi
- Department of Electrical and Computer Engineering, Michigan State University, East Lansing, Michigan
| | - Marc D. Basson
- Department of Surgery, Michigan State University, East Lansing, Michigan
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18
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Rychly J. Biointerface Technology. Regen Med 2013. [DOI: 10.1007/978-94-007-5690-8_24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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19
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Marthick JR, Dickinson JL. Emerging putative biomarkers: the role of alpha 2 and 6 integrins in susceptibility, treatment, and prognosis. Prostate Cancer 2012; 2012:298732. [PMID: 22900191 PMCID: PMC3415072 DOI: 10.1155/2012/298732] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2012] [Accepted: 05/17/2012] [Indexed: 11/22/2022] Open
Abstract
The genetic architecture underpinning prostate cancer is complex, polygenic and despite recent significant advances many questions remain. Advances in genetic technologies have greatly improved our ability to identify genetic variants associated with complex disease including prostate cancer. Genome-wide association studies (GWASs) and microarray gene expression studies have identified genetic associations with prostate cancer susceptibility and tumour development. The integrins feature prominently in both studies examining the underlying genetic susceptibility and mechanisms driving prostate tumour development. Integrins are cell adhesion molecules involved in extracellular and intracellular signalling and are imperative for tumour development, migration, and angiogenesis. Although several integrins have been implicated in tumour development, the roles of integrin α(2) and integrin α(6) are the focus of this paper as evidence is now emerging that these integrins are implicit in prostate cancer susceptibility, cancer stem cell biology, angiogenesis, cell migration, and metastases to bone and represent potential biomarkers and therapeutic targets. There currently exists an urgent need to develop tools that differentiate indolent from aggressive prostate cancers and predict how patients will respond to treatment. This paper outlines the evidence supporting the use of α(2) and α(6) integrins in clinical applications for tailored patient treatment.
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Affiliation(s)
- James R. Marthick
- Menzies Research Institute Tasmania, University of Tasmania, 17 Liverpool Street Hobart, TAS 7000, Australia
| | - Joanne L. Dickinson
- Menzies Research Institute Tasmania, University of Tasmania, 17 Liverpool Street Hobart, TAS 7000, Australia
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20
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Melo FHM, Butera D, Junqueira MDS, Hsu DK, Moura da Silva AM, Liu FT, Santos MF, Chammas R. The promigratory activity of the matricellular protein galectin-3 depends on the activation of PI-3 kinase. PLoS One 2011; 6:e29313. [PMID: 22216245 PMCID: PMC3247242 DOI: 10.1371/journal.pone.0029313] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2011] [Accepted: 11/25/2011] [Indexed: 12/16/2022] Open
Abstract
Expression of galectin-3 is associated with sarcoma progression, invasion and metastasis. Here we determined the role of extracellular galectin-3 on migration of sarcoma cells on laminin-111. Cell lines from methylcholanthrene-induced sarcomas from both wild type and galectin-3−/− mice were established. Despite the presence of similar levels of laminin-binding integrins on the cell surface, galectin-3−/− sarcoma cells were more adherent and less migratory than galectin-3+/+ sarcoma cells on laminin-111. When galectin-3 was transiently expressed in galectin-3−/− sarcoma cells, it inhibited cell adhesion and stimulated the migratory response to laminin in a carbohydrate-dependent manner. Extracellular galectin-3 led to the recruitment of SHP-2 phosphatase to focal adhesion plaques, followed by a decrease in the amount of phosphorylated FAK and phospho-paxillin in the lamellipodia of migrating cells. The promigratory activity of extracellular galectin-3 was inhibitable by wortmannin, implicating the activation of a PI-3 kinase dependent pathway in the galectin-3 triggered disruption of adhesion plaques, leading to sarcoma cell migration on laminin-111.
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Affiliation(s)
- Fabiana H. M. Melo
- Departamento de Radiologia e Oncologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Diego Butera
- Departamento de Radiologia e Oncologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Laboratório de Imunopatologia, Instituto Butantan, São Paulo, São Paulo, Brazil
| | - Mara de Souza Junqueira
- Departamento de Radiologia e Oncologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Daniel K. Hsu
- Department of Dermatology, University of California Davis, Davis, California, United States of America
| | | | - Fu-Tong Liu
- Department of Dermatology, University of California Davis, Davis, California, United States of America
| | - Marinilice F. Santos
- Departamento de Biologia Celular e do Desenvolvimento, Instituto de Ciências Biomédicas, Universidade de São Paulo, São Paulo, São Paulo, Brazil
| | - Roger Chammas
- Departamento de Radiologia e Oncologia, Faculdade de Medicina da Universidade de São Paulo, São Paulo, São Paulo, Brazil
- Instituto do Cancer do Estado de São Paulo, São Paulo, São Paulo, Brazil
- * E-mail:
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22
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Chelate oxorhenium to assemble new integrin antagonists. J Inorg Biochem 2011; 105:880-6. [DOI: 10.1016/j.jinorgbio.2011.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2011] [Revised: 03/15/2011] [Accepted: 03/15/2011] [Indexed: 11/22/2022]
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Abstract
Malignant melanoma (MM) micrometastases are basically seen in three locations inside the peritumoral dermis. They are localized (i) inside the interstitial sector of the dermal stroma; (ii) abutted to the external surface of the microvasculature; and (iii) more rarely present inside vascular channels. Single-cell and paucicellular micrometastases may be disclosed using immunohistochemistry even in the absence of larger microsatellites, which represent micronodular nests of metastatic cells. The presence of microsatellites is frequently tied to markers of MM aggressiveness including thickness and the Ki-67 index. Micrometastases may be present in the same conditions, but even as early as thin MM showing a small growth fraction. Microsatellites as well as micrometastases appear to predict locoregional extension and decreased relapse-free interval, but not distant metastasis and overall survival. These considerations have implications for patient care since patients with microsatellites and micrometastases are now included in the clinical stage III category of the disease. Their implication as a prognostic factor is not fully dependent on or linked to other markers of MM aggressiveness.
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Affiliation(s)
- Pascale Quatresooz
- Department of Dermatopathology, University Hospital of Liège, Liège, Belgium
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24
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Aufort M, Gonera M, Lelait MA, Czarny B, Le Clainche L, Thaï R, Landra A, Ruinart de Brimont M, Dugave C. Synthesis, in vitro screening and in vivo evaluation of cyclic RGD analogs cyclized through oxorhenium and oxotechnetium coordination. Eur J Med Chem 2011; 46:1779-88. [PMID: 21392860 DOI: 10.1016/j.ejmech.2011.02.032] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2010] [Revised: 02/10/2011] [Accepted: 02/11/2011] [Indexed: 12/13/2022]
Abstract
A library of RGD tripeptide analogs cyclized through oxorhenium coordination by an NS2/S chelation motif was synthesized. Screening towards integrins αVβ3, αIIbβ3 and αVβ5 led to the identification of 6 oxorhenium complexes that bind to integrin αVβ3 in the submicromolar range. In vivo evaluation of five of the corresponding oxotechnetium complexes using nude mice bearing a U87MG human tumor xenograft showed a significant and specific accumulation of radioactivity inside the tumor. The best results in vivo were obtained with complexes Tc-16 and Tc-50 that displayed a higher tumor accumulation and a lower distribution in other tissues relative to a reference cyclopentapeptide tracer.
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Affiliation(s)
- Marie Aufort
- CEA/Saclay, iBiTec-S/SIMOPRO, Bâtiment 152, 91191 Gif-sur-Yvette, France
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25
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Integrins are the necessary links to hypertrophic growth in cardiomyocytes. JOURNAL OF SIGNAL TRANSDUCTION 2011; 2011:521742. [PMID: 21637377 PMCID: PMC3101892 DOI: 10.1155/2011/521742] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2010] [Accepted: 12/15/2010] [Indexed: 11/17/2022]
Abstract
To compensate for hemodynamic overload of the heart, an event which stretches the myocardium, growth and survival signaling are activated in cardiac muscle cells (cardiomyocytes). Integrins serve as the signaling receptors of cardiomyocytes responsible for mechanotransduction toward intracellular signaling. The main integrin heterodimers on the cardiomyocyte surface are α(5)β(1) and α(v)β(3), and elimination of either β(1) or β(3) integrins impedes pressure-induced hypertrophic signaling and leads to increased mortality. The growth signaling pathways downstream of β(1) and β(3) integrins are well characterized. However, new integrin pathways responsible for inhibiting apoptosis induced by hemodynamic overload are emerging. β(1) and β(3) integrins activate differential survival signaling, yet both integrins initiate survival signaling downstream of ubiquitination and the kinase pathway including phosphoinositol-3-kinase (PI3K)/Akt. Further characterization of these integrin-signaling mechanisms may lead to drug targets to prevent decompensation to heart failure.
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26
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Aufort M, Gonera M, Le Gal J, Czarny B, Le Clainche L, Thai R, Dugave C. Oxorhenium-Mediated Assembly of Noncyclic Selective Integrin Antagonists: A Combinatorial Approach. Chembiochem 2011; 12:583-92. [DOI: 10.1002/cbic.201000700] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Indexed: 11/11/2022]
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27
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Spatial regulation of cell adhesion in the Drosophila wing is mediated by Delilah, a potent activator of βPS integrin expression. Dev Biol 2011; 351:99-109. [PMID: 21215259 DOI: 10.1016/j.ydbio.2010.12.039] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2010] [Revised: 12/16/2010] [Accepted: 12/20/2010] [Indexed: 01/04/2023]
Abstract
In spite of our conceptual view of how differential gene expression is used to define different cell identities, we still do not understand how different cell identities are translated into actual cell properties. The example discussed here is that of the fly wing, which is composed of two main cell types: vein and intervein cells. These two cell types differ in many features, including their adhesive properties. One of the major differences is that intervein cells express integrins, which are required for the attachment of the two wing layers to each other, whereas vein cells are devoid of integrin expression. The major signaling pathways that divide the wing to vein and intervein domains have been characterized. However, the genetic programs that execute these two alternative differentiation programs are still very roughly drawn. Here we identify the bHLH protein Delilah (Dei) as a mediator between signaling pathways that specify intervein cell-fate and one of the most significant realizators of this fate, βPS integrin. Dei's expression is restricted to intervein territories where it acts as a potent activator of βPS integrin expression. In the absence of normal Dei activity the level of βPS integrin is reduced, leading to a failure of adhesion between the dorsal and ventral wing layers and a consequent formation of wing blisters. The effect of Dei on βPS expression is not restricted to the wing, suggesting that Dei functions as a general genetic switch, which is turned on wherever a sticky cell-identity is determined and integrin-based adhesion is required.
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28
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Rychly J. Biointerface Technology. Regen Med 2011. [DOI: 10.1007/978-90-481-9075-1_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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29
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Duan SG, Cheng L, Li DJ, Zhu J, Xiong Y, Li XW, Wang SG. The role of MAPK-ERK pathway in 67-kDa laminin receptor-induced FasL expression in human cholangiocarcinoma cells. Dig Dis Sci 2010; 55:2844-52. [PMID: 20101459 DOI: 10.1007/s10620-009-1121-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2009] [Accepted: 12/28/2009] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND AIMS Cancer cells are thought to possess immune evasion properties due to FasL overexpression in many types of human tumors. In the present study, we set out to investigate the role of MAPK-ERK pathway in 67-kDa laminin receptor induced FasL expression and FasL-mediated apoptosis in human cholangiocarcinoma cells. METHODS The expression of FasL and its promoter activity in cultured cholangiocarcinoma cells were examined after treatment with laminin or transfection with plasmids containing siRNA targeted to 67-kDa laminin receptor. The effects of MAPK-ERK cascade inhibitor and c-Myc inhibition by siRNA on 67-kDa laminin receptor-induced FasL expression were determined. Apoptosis assay was performed to analyze the apoptosis of lymphocytes cocultured with cholangiocarcinoma cells treated with or without MAPK-ERK cascade inhibitor. RESULTS Our results revealed that the specific MAPK-ERK cascade inhibitor, PD98059, significantly attenuated phosphorylation of c-Myc on Ser-62 and FasL upregulation in QBC-939 cells and these cells showed decreased cytotoxicity against Fas-sensitive Jurkat T cells. A luciferase reporter assay revealed that FasL promoter activity was significantly reduced in cells treated with PD98059 or transfected with c-Myc siRNA. CONCLUSIONS Based on these results, we conclude that 67LR induces FasL expression and cytotoxicity against Fas-sensitive Jurkat T cells in human cholangiocarcinoma cells through the phosphorylation of c-Myc on Ser-62 and the subsequent activation of the FasL promoter through the ERK pathway.
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Affiliation(s)
- Shi-Gang Duan
- Hepatobiliary Surgery Hospital and Institute, Southwest Hospital, Third Military Medical University, 400038, Chongqing, China
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30
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Diallyl disulphide, but not diallyl sulphide, increases leucocyte function-associated antigen-1 expression and cellular adhesion in monocytes. Food Chem 2010. [DOI: 10.1016/j.foodchem.2009.09.082] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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31
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RETRACTED ARTICLE: 67-kDa laminin receptor induces FasL expression and FasL-mediated apoptosis through the activation of c-Myc and the subsequent activation of the FasL promoter in human cholangiocarcinoma cells. J Cancer Res Clin Oncol 2010; 137:391. [PMID: 20155283 DOI: 10.1007/s00432-010-0804-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2009] [Accepted: 01/28/2010] [Indexed: 10/19/2022]
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Abstract
The integrin lies at the center of our efforts to understand mechanotransduction in the human body. Over the past two decades, a wealth of information has yielded important insights into integrin structure and functioning in biochemical pathways; however, relatively little emphasis has been placed on mechanics. In this article, we review the current knowledge base of integrin mechanobiology by examining the role of integrins in stabilizing tissue structure, the mechanisms of integrin force transfer, the process of cell migration, and the pathology of cancer. In order to successfully address the gaps in cancer and other disease research going forward, future efforts of integrin mechanobiology must focus on examining cells in 3D environments and integrating our current understanding into computational models that predict the behavior of integrins in non-equilibrium interactions.
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Affiliation(s)
- Erin L Baker
- Department of Biomedical Engineering, The University of Texas at Austin, USA
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33
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Jiang Z, Tao M, Omalley KA, Wang D, Ozaki CK, Berceli SA. Established neointimal hyperplasia in vein grafts expands via TGF-beta-mediated progressive fibrosis. Am J Physiol Heart Circ Physiol 2009; 297:H1200-7. [PMID: 19617405 DOI: 10.1152/ajpheart.00268.2009] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In weeks to months following implantation, neointimal hyperplasia (NIH) in vein grafts (VGs) transitions from a cellularized to a decellularized phenotype. The inhibition of early cellular proliferation failed to improve long-term VG patency. We have previously demonstrated that transforming growth factor-beta(1) (TGF-beta(1))/connective tissue growth factor (CTGF) pathways mediate a conversion of fibroblasts to myofibroblasts in the early VG (<2 wk). We hypothesize that these similar pathways drive fibrosis observed in the late VG lesion. Within rabbit VGs, real-time RT-PCR, Western blot analysis, ELISA, and immunohistochemistry were used to examine TGF-beta/CTGF pathways in late (1-6 mo) NIH. All VGs exhibited a steady NIH growth (P = 0.006) with significant reduction in cellularity (P = 0.01) over time. Substantial TGF-beta profibrotic activities, as evidenced by enhanced TGF-beta(1) activation, TGF-beta receptor types I (activin receptor-like kinase 5)-to-II receptor ratio, SMAD2/3 phosphorylation, and CTGF production, persisted throughout the observation period. An increased matrix synthesis was accompanied by a temporal reduction of matrix metalloproteinase-2 (P = 0.001) and -9 (P < 0.001) activity. VG NIH is characterized by a conversion from a proproliferative to a profibrotic morphology. An enhanced signaling via TGF-beta/CTGF coupled with reduced matrix metalloproteinase activities promotes progressive fibrotic NIH expansion. The modulation of late TGF-beta/CTGF signaling may offer a novel therapeutic strategy to improve the long-term VG durability.
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Affiliation(s)
- Zhihua Jiang
- Malcom Randall Veterans Affairs Medical Center, University of Florida College of Medicine, Gainesville, Florida, USA.
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Georgolios AK, Batistatou A, Charalabopoulos K. Integrins in Head and Neck Squamous Cell Carcinoma (HNSCC): A Review of the Current Literature. ACTA ACUST UNITED AC 2009; 12:1-8. [PMID: 16371342 DOI: 10.1080/15419060500383093] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Integrins are a family of adhesion molecules performing a major role in multiple cellular functions. Their contribution in carcinogenesis and metastatic process are the object of intense research activity worldwide during the last decades. This review focuses on the existing knowledge about integrin expression in head and neck squamous cell carcinoma (HNSCC) as it has been acquired mainly by immunohistochemical methods and by in vitro assays. The elucidation of the exact role of integrins and the study of expressive alterations of these molecules in cancer cells, may result in novel therapeutical approaches for useful applications in the clinical routine of HNSCC in the future.
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Affiliation(s)
- A K Georgolios
- Department of Physiology, Clinical Unit, Medical Faculty, University of Ioannina, Ioannina, Greece
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35
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Synthesis and biochemical evaluation of a cyclic RGD oxorhenium complex as new ligand of alphaVbeta3 integrin. Eur J Med Chem 2009; 44:3394-401. [PMID: 19303174 DOI: 10.1016/j.ejmech.2009.02.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2008] [Revised: 01/26/2009] [Accepted: 02/12/2009] [Indexed: 11/22/2022]
Abstract
We report the design of a new ligand of integrins that might be used for the molecular imaging of tumor neoangiogenesis. For this purpose, we designed a modified RGD tripeptide bearing a N-terminal N-bis(thioethyl)glycinate (NS(2)) motif and a thioethyl moiety at the C-terminus. Simultaneous coordination of an oxorhenium core by the NS(2) and thioethyl moieties led to peptide cyclization and gave the corresponding monomers 13a and b (major isomer) resulting from the syn/anti-isomerism, along with dimers' species 16a and b. Cyclometallated peptide 13b showed the most promising activity with an IC(50) of 86 nM for integrin alpha(V)beta(3) whereas it binds integrin alpha(IIb)beta(3) with an affinity lower by an order of magnitude. Labeling with [(99m)Tc]oxotechnetium gluconate led exclusively to complex 17, the equivalent of compound 13b, which displayed satisfactory stabilities in mice plasma and towards glutathione.
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Tariq M, Khan MN, Ahmad W. Ectodermal dysplasia-cutaneous syndactyly syndrome maps to chromosome 7p21.1-p14.3. Hum Genet 2009; 125:421-9. [DOI: 10.1007/s00439-009-0640-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2008] [Accepted: 02/08/2009] [Indexed: 10/21/2022]
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37
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Burvenich I, Schoonooghe S, Vervoort L, Dumolyn C, Coene E, Vanwalleghem L, Van Huysse J, Praet M, Cuvelier C, Mertens N, De Vos F, Slegers G. Monoclonal antibody 14C5 targets integrin alphavbeta5. Mol Cancer Ther 2009; 7:3771-9. [PMID: 19074852 DOI: 10.1158/1535-7163.mct-08-0600] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study identifies and characterizes the antigen recognized by monoclonal antibody (mAb) 14C5. We compared the expression of antigen 14C5 with the expression of eight integrin subunits (alpha1, alpha2, alpha3, alphav, beta1, beta2, beta3, and beta4) and three integrin heterodimers (alphavbeta3, alphavbeta5, and alpha5beta1) by flow cytometry. Antigen 14C5 showed a similar expression to alphavbeta5 in eight different epithelial cancer cell lines (A549, A2058, C32, Capan-2, Colo16, HT-1080, HT-29, and SKBR-3). Specific binding of P1F6, an anti-alphavbeta5 specific antibody, was blocked by mAb 14C5. After transient expression of alphavbeta5 in 14C5-negative Colo16 cells, mAb 14C5 was able to bind a subpopulation of alphavbeta5-positive cells. We evaluated the tissue distribution of the 14C5 antigen in colon (n = 20) and lung (n = 16) cancer tissues. The colon carcinoma cells stained positive for 14C5 in 50% of tumors analyzed, whereas bronchoalveolar lung carcinoma and typical carcinoid were not positive for the antigen. More common types of non-small cell lung cancer, i.e., squamous (n = 5) and adenocarcinoma (n = 3), stained positive in 2 of 5 squamous carcinomas and in 1 of 3 investigated adenocarcinoma. Colon (95%) and lung (50%) carcinoma tissues showed extensive expression of antigen 14C5 in the stroma surrounding the tumor cells and on the membrane of the adjacent fibroblasts. We show for the first time that mAb 14C5 binds the vascular integrin alphavbeta5, suggesting that mAb 14C5 can be used as a screening agent to select colon and lung cancer patients that are eligible for anti-alphavbeta5-based therapies.
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Affiliation(s)
- Ingrid Burvenich
- Laboratory of Radiopharmacy, Harelbekestraat 72, B-9000 Ghent, Belgium
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38
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Kremser ME, Przybyło M, Hoja-Łukowicz D, Pocheć E, Amoresano A, Carpentieri A, Bubka M, Lityńska A. Characterisation of alpha3beta1 and alpha(v)beta3 integrin N-oligosaccharides in metastatic melanoma WM9 and WM239 cell lines. BIOCHIMICA ET BIOPHYSICA ACTA 2008; 1780:1421-31. [PMID: 18755246 DOI: 10.1016/j.bbagen.2008.07.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2008] [Revised: 07/11/2008] [Accepted: 07/22/2008] [Indexed: 01/26/2023]
Abstract
It is well documented that glycan synthesis is altered in some pathological processes, including cancer. The most frequently observed alterations during tumourigenesis are extensive expression of beta1,6-branched complex type N-glycans, the presence of poly-N-acetyllactosamine structures, and high sialylation of cell surface glycoproteins. This study investigated two integrins, alpha3beta1 and alpha(v)beta3, whose expression is closely related to cancer progression. Their oligosaccharide structures in two metastatic melanoma cell lines (WM9, WM239) were analysed with the use of matrix-assisted laser desorption ionisation mass spectrometry. Both examined integrins possessed heavily sialylated and fucosylated glycans, with beta1,6-branches and short polylactosamine chains. In WM9 cells, alpha3beta1 integrin was more variously glycosylated than alpha(v)beta3; in WM239 cells the situation was the reverse. Functional studies (wound healing and ELISA integrin binding assays) revealed that the N-oligosaccharide component of the tested integrins influenced melanoma cell migration on vitronectin and alpha3beta1 integrin binding to laminin-5. Additionally, more variously glycosylated integrins exerted a stronger influence on these parameters. To the best of our knowledge, this is the first report concerning structural characterisation of alpha(v)beta3 integrin glycans in melanoma or in any cancer cells.
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Affiliation(s)
- Marcelina E Kremser
- Department of Glycoconjugate Biochemistry, Institute of Zoology, Jagiellonian University, ul. Ingardena 6, 30-060 Krakow, Poland.
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39
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Hermand P, Pincet F, Carvalho S, Ansanay H, Trinquet E, Daoudi M, Combadière C, Deterre P. Functional adhesiveness of the CX3CL1 chemokine requires its aggregation. Role of the transmembrane domain. J Biol Chem 2008; 283:30225-34. [PMID: 18725411 DOI: 10.1074/jbc.m802638200] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
In its native form, the chemokine CX3CL1 is a firmly adhesive molecule promoting leukocyte adhesion and migration and hence involved, along with its unique receptor CX3CR1, in various inflammatory processes. Here we investigated the role of molecular aggregation in the CX3CL1 adhesiveness. Assays of bioluminescence resonance energy transfer (BRET) and homogeneous time-resolved fluorescence (HTRF) in transfected cell lines and in primary cells showed specific signals indicative of CX3CL1 clustering. Truncation experiments showed that the transmembrane domain played a central role in this aggregation. A chimera with mutations of the 12 central transmembrane domain residues had significantly reduced BRET signals and characteristics of a non-clustering molecule. This mutant was weakly adhesive according to flow and dual pipette adhesion assays and was less glycosylated than CX3CL1, although, as we demonstrated, loss of glycosylation did not affect the CX3CL1 adhesive potency. We postulate that cell surfaces express CX3CL1 as a constitutive oligomer and that this oligomerization is essential for its adhesive potency. Inhibition of CX3CL1 self-assembly could limit the recruitment of CX3CR1-positive cells and may be a new pathway for anti-inflammatory therapies.
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Affiliation(s)
- Patricia Hermand
- Laboratoire d'Immunologie Cellulaire, INSERM UMR-S 543, Université Pierre et Marie Curie-Paris 06, 91 boulevard de l'Hôpital, 75013 Paris, France
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40
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Ohkawa Y, Miyazaki S, Miyata M, Hamamura K, Furukawa K, Furukawa K. Essential roles of integrin-mediated signaling for the enhancement of malignant properties of melanomas based on the expression of GD3. Biochem Biophys Res Commun 2008; 373:14-9. [PMID: 18538130 DOI: 10.1016/j.bbrc.2008.05.149] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Accepted: 05/21/2008] [Indexed: 11/29/2022]
Abstract
We reported that ganglioside GD3 enhances cell proliferation and invasion of melanomas causing stronger tyrosine-phosphorylation of p130Cas and paxillin after stimulation with fetal calf serum. Besides signals via growth factor/receptor, adhesion signals via integrin might be also enhanced by GD3. Here, roles of integrin-mediated signaling in the cell proliferation and invasion, and in the activation of adaptor molecules were examined, showing that integrin was also important for the cell growth and invasion. p130Cas and paxillin underwent stronger tyrosine-phosphorylation in GD3+ cells than in GD3- cells during the adhesion in the absence of serum. On the other hand, no proteins underwent tyrosine phosphorylation in GD3+ and GD3- cells in a suspension state when stimulated with fetal calf serum. These results suggested that integrin-mediated signaling is essential in the effects of GD3 on the malignant properties of melanomas. Co-localization of GD3 and integrin at the focal adhesion supported these results.
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Affiliation(s)
- Yuki Ohkawa
- Department of Biochemistry II, Nagoya University Graduate School of Medicine, 65 Tsurumai, Showa-ku, Nagoya 466-0065, Aichi, Japan
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41
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Liu Z, Gao M, Han Q, Fang J, Zhao Q, Zhang N. Intensity of platelet beta(3) integrin in patients with hemorrhagic fever with renal syndrome and its correlation with disease severity. Viral Immunol 2008; 21:255-262. [PMID: 18419255 DOI: 10.1089/vim.2007.0098] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
beta(3) Integrin has been identified as a cellular receptor for Hantaan virus, which causes hemorrhagic fever with renal syndrome (HFRS). To investigate the relationship between intensity of the platelet membrane beta(3) integrin (CD61) and disease severity, the percentage of CD61-positive platelets and the mean fluorescence intensities (MFI) of platelet CD61 were determined in patients with HFRS by flow cytometry. The intensity levels of CD61 in patients with HFRS were significantly higher than those in the controls and correlated with the clinical phases of the disease. The CD61 intensity at the oliguric phase was inversely correlated with platelet count and serum albumin, and positively correlated with white blood cell count, blood urea nitrogen, serum creatinine, and alanine aminotransferase levels. The results suggest that the intensity levels of platelet CD61 were elevated and associated with clinical phases and disease severity in patients with HFRS, and the intensity of platelet beta(3) integrin in patients with HFRS may be indicative of disease severity.
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Affiliation(s)
- Zhengwen Liu
- Department of Infectious Diseases, First Affiliated Hospital, School of Medicine, Xian Jiaotong University, Xi'an, Shaanxi, China.
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42
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Parthasarathy K, Lin X, Tan SM, Law SKA, Torres J. Transmembrane helices that form two opposite homodimeric interactions: an asparagine scan study of alphaM and beta2 integrins. Protein Sci 2008; 17:930-8. [PMID: 18369198 DOI: 10.1110/ps.073234208] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Integrins are alpha/beta heterodimers, but recent in vitro and in vivo experiments also suggest an ability to associate through their transmembrane domains to form homomeric interactions. While the results of some in vitro experiments are consistent with an interaction mediated by a GxxxG-like motif, homo-oligomers observed after in vivo cross-linking are consistent with an almost opposite helix-helix interface. We have shown recently that both models of interaction are compatible with evolutionary conservation data, and we predicted that the alpha-helices in both models would have a similar rotational orientation. Herein, we have tested our prediction using in vitro asparagine scan of five consecutive residues along the GxxxG-like motif of the transmembrane domain of alpha and beta integrins, alphaM and beta2. We show that Asn-mediated dimerization occurs twice for every turn of the helix, consistent with two almost opposite forms of interaction as suggested previously for alphaIIb and beta3 transmembrane domains. The orientational parameters helix tilt and rotational orientation of each of these two Asn-stabilized dimers were measured by site-specific infrared dichroism (SSID) in model lipid bilayers and were found to be consistent with our predicted computational models. Our results highlight an intrinsic tendency for integrin transmembrane alpha-helices to form two opposite types of homomeric interaction in addition to their heteromeric interactions and suggest that integrins may form complex and specific networks at the transmembrane domain during function.
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43
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Brunner A, Tzankov A. The role of structural extracellular matrix proteins in urothelial bladder cancer (review). Biomark Insights 2007; 2:418-27. [PMID: 19662222 PMCID: PMC2717820 DOI: 10.4137/bmi.s294] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
The extracellular matrix (ECM) plays a key role in the modulation of cancer cell invasion. In urothelial carcinoma of the bladder (UC) the role of ECM proteins has been widely studied. The mechanisms, which are involved in the development of invasion, progression and generalization, are complex, depending on the interaction of ECM proteins with each other as well as with cancer cells. The following review will focus on the pathogenetic role and prognostic value of structural proteins, such as laminins, collagens, fibronectin (FN), tenascin (Tn-C) and thrombospondin 1 (TSP1) in UC. In addition, the role of integrins mediating the interaction of ECM molecules and cancer cells will be addressed, since integrin-mediated FN, Tn-C and TSP1 interactions seem to play an important role during tumor cell invasion and angiogenesis.
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Affiliation(s)
- Andrea Brunner
- Institute of Pathology, Medical University of Innsbruck, Innsbruck, Austria
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44
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Cauwe B, Van den Steen PE, Opdenakker G. The biochemical, biological, and pathological kaleidoscope of cell surface substrates processed by matrix metalloproteinases. Crit Rev Biochem Mol Biol 2007; 42:113-85. [PMID: 17562450 DOI: 10.1080/10409230701340019] [Citation(s) in RCA: 279] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Matrix metalloproteinases (MMPs) constitute a family of more than 20 endopeptidases. Identification of specific matrix and non-matrix components as MMP substrates showed that, aside from their initial role as extracellular matrix modifiers, MMPs play significant roles in highly complex processes such as the regulation of cell behavior, cell-cell communication, and tumor progression. Thanks to the comprehensive examination of the expanded MMP action radius, the initial view of proteases acting in the soluble phase has evolved into a kaleidoscope of proteolytic reactions connected to the cell surface. Important classes of cell surface molecules include adhesion molecules, mediators of apoptosis, receptors, chemokines, cytokines, growth factors, proteases, intercellular junction proteins, and structural molecules. Proteolysis of cell surface proteins by MMPs may have extremely diverse biological implications, ranging from maturation and activation, to inactivation or degradation of substrates. In this way, modification of membrane-associated proteins by MMPs is crucial for communication between cells and the extracellular milieu, and determines cell fate and the integrity of tissues. Hence, insights into the processing of cell surface proteins by MMPs and the concomitant effects on physiological processes as well as on disease onset and evolution, leads the way to innovative therapeutic approaches for cancer, as well as degenerative and inflammatory diseases.
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Affiliation(s)
- Bénédicte Cauwe
- Rega Institute for Medical Research, Laboratory of Immunobiology, University of Leuven, Leuven, Belgium
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45
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Abe M, Sawamura D, Goto M, Nakamura H, Nagasaki A, Nomura Y, Kawasaki H, Isogai R, Shimizu H. ITGB4 missense mutation in a transmembrane domain causes non-lethal variant of junctional epidermolysis bullosa with pyloric atresia. J Dermatol Sci 2007; 47:165-7. [PMID: 17512702 DOI: 10.1016/j.jdermsci.2007.03.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2007] [Accepted: 03/04/2007] [Indexed: 11/16/2022]
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46
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Rolaki A, Coukos G, Loutradis D, DeLisser HM, Coutifaris C, Makrigiannakis A. Luteogenic hormones act through a vascular endothelial growth factor-dependent mechanism to up-regulate alpha 5 beta 1 and alpha v beta 3 integrins, promoting the migration and survival of human luteinized granulosa cells. THE AMERICAN JOURNAL OF PATHOLOGY 2007; 170:1561-72. [PMID: 17456762 PMCID: PMC1854951 DOI: 10.2353/ajpath.2007.060926] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The formation of the corpus luteum (CL) is critical for the establishment of a successful pregnancy. After ovulation, the CL develops from the remnants of the ovulated ovarian follicle. This process, which involves varying cell-matrix interactions, is poorly characterized. To understand the role and potential regulation of cell-matrix interactions in the formation of the CL, we investigated the expression and activity of the matrix protein fibronectin (FN) and several of its integrin receptors on luteinized granulosa cells (GCs). In situ, FN and several FN-binding integrins were detected around luteinizing GCs during the early luteal phase, although expression declined in the late luteal phase. In vitro, GCs released FN, and stimulation of these cells with human chorionic gonadotropin increased the surface expression of FN, alpha(5)beta(1), and alpha(v)beta(3). Up-regulation of these proteins on GCs was reproduced by stimulation with vascular endothelial growth factor (VEGF) and was inhibited by anti-VEGF antibody. Lastly, expression of alpha(5)beta(1) and alpha(v)beta(3) mediated adhesion to FN, facilitated migration, and prevented apoptosis. These data suggest that in vivo luteogenic hormones, in part through a VEGF-dependent mechanism, stimulate selected integrin-matrix adhesive interactions that promote the motility and survival of GCs and thus contribute to the formation and preservation of the CL.
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Affiliation(s)
- Alexandra Rolaki
- Laboratory of Human Reproduction, Department of Obstetrics and Gynaecology, Medical School, University of Crete, Heraklion 71110, Greece
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47
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Pawar SC, Demetriou MC, Nagle RB, Bowden GT, Cress AE. Integrin alpha6 cleavage: a novel modification to modulate cell migration. Exp Cell Res 2007; 313:1080-9. [PMID: 17303120 PMCID: PMC1905853 DOI: 10.1016/j.yexcr.2007.01.006] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2006] [Revised: 12/19/2006] [Accepted: 01/08/2007] [Indexed: 01/25/2023]
Abstract
Integrins play a major role in cell adhesion and migration. Previous work reported that a cleaved form of integrin alpha6 (alpha6p) was detected in invasive human prostate cancer tissue, absent in normal prostate tissue and was produced by urokinase-type Plasminogen Activator (uPA) in a plasmin-independent manner. Using site-directed mutagenesis we identified amino acid residues R594 and R595, located in the "stalk" region of integrin alpha6, as essential for cleavage. The cleavage site is located on the extracellular region of the protein between the beta-barrel domain and the thigh domain. Prostate cancer cells (PC3N) were stably transfected to overexpress the cleavable, wild-type (PC3N-alpha6-WT) or the non-cleavable form of integrin alpha6 (PC3N-alpha6-RR). The number of cells invading laminin 111- and laminin 332-coated filters by PC3N-alpha6-WT cells increased by threefold as compared to PC3N-alpha6-RR cells. Plasminogen activator inhibitor-1 (PAI-1) reduced the invasion of PC3N-alpha6-WT cells by approximately 42% through laminin 332-coated filters and plasmin inhibitor aprotinin had no significant effect. Linear cell migration increased production of integrin alpha6p in the PC3N-alpha6-WT cells and not in the PC3N-alpha6-RR cells and 32% of the PC3N-alpha6-WT cells migrated on laminin 111 in the linear migration assay as compared to the 5% PC3N-alpha6-RR cells. These data taken together suggest that the uPA-mediated cell surface cleavage of the alpha6 integrin extracellular domain is involved in tumor cell invasion and migration on laminin.
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Affiliation(s)
- Sangita C. Pawar
- Dept. of Cell Biology & Anatomy, University of Arizona, Tucson, AZ
| | | | | | - G. Tim Bowden
- Dept. of Cell Biology & Anatomy, University of Arizona, Tucson, AZ
| | - Anne E. Cress
- Dept. of Cell Biology & Anatomy, University of Arizona, Tucson, AZ. Arizona Cancer Center, University of Arizona, Tucson, Arizona 85724
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48
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Cullen DK, Lessing MC, LaPlaca MC. Collagen-dependent neurite outgrowth and response to dynamic deformation in three-dimensional neuronal cultures. Ann Biomed Eng 2007; 35:835-46. [PMID: 17385044 DOI: 10.1007/s10439-007-9292-z] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2006] [Accepted: 03/02/2007] [Indexed: 10/23/2022]
Abstract
In vitro models of brain injury that use thick 3-D cultures and control extracellular matrix constituents allow evaluation of cell-matrix interactions in a more physiologically relevant configuration than traditional 2-D cultures. We have developed a 3-D cell culture system consisting of primary rat cortical neurons distributed throughout thick (>500 microm) gels consisting of type IV collagen (Col) conjugated to agarose. Neuronal viability and neurite outgrowth were examined for a range of agarose (AG) percentages (1.0-3.0%) and initial collagen concentrations ([Col](i); 0-600 microg/mL). In unmodified AG, 1.5% gels supported viable cultures with significant neurite outgrowth, which was not found at lower (< or =1.0%) concentrations. Varying [Col](i )in 1.25% AG revealed the formation of dense, 3-D neurite networks at [Col](i) of 300 microg/mL, while neurons in unmodified AG and at higher [Col](i) (600 microg/mL) exhibited significantly less neurite outgrowth; although, neuronal survival did not vary with [Col](i). The effect of [Col](i) on acute neuronal response following high magnitude, high rate shear deformation (0.50 strain, 30 s(-1) strain rate) was evaluated in 1.5% AG for [Col](i) of 30, 150, and 300 microg/mL, which supported cultures with similar baseline viability and neurite outgrowth. Conjugation of Col to AG also increased the complex modulus of the hydrogel. Following high rate deformation, neuronal viability significantly decreased with increasing [Col](i), implicating cell-matrix adhesions in acute mechanotransduction events associated with traumatic loading. These results suggest interrelated roles for matrix mechanical properties and receptor-mediated cell-matrix interactions in neuronal viability, neurite outgrowth, and transduction of high rate deformation. This model system may be further exploited for the elucidation of mechanotransduction mechanisms and cellular pathology following mechanical insult.
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Affiliation(s)
- D Kacy Cullen
- GT/Emory Coulter Department of Biomedical Engineering, Georgia Institute of Technology, 313 Ferst Dr., Atlanta, GA 30332-0535, USA
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49
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Abstract
The alpha2beta1 integrin is abundantly expressed by basal keratinocytes in intact skin and is required for re-epithelialization of human skin wounds. However, as Grenache et al. and Zweers et al. report, closure of mouse wounds does not require this receptor. The discrepancies between these models may reflect differences in the composition of the dermal matrices and in the proteinases expressed in response to injury.
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Affiliation(s)
- William C Parks
- Center for Lung Biology, University of Washington, Seattle, Washington 98109, USA.
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50
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Abstract
Cell adhesion to the extracellular matrix is a dynamic process involving numerous focal adhesion components, which act in coordination to strengthen and optimize the mechanical anchorage of cells over time. A method for systematically analyzing the cell adhesion strengthening process and the components involved in this process is described here. The method combines an adhesion strength assay based on applying fluid shearing to a population of cells and quantitative biochemical analyses.
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Affiliation(s)
- Kristin E Michael
- Woodruff School of Mechanical Engineering, Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
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