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Voglstaetter M, Thomsen AR, Nouvel J, Koch A, Jank P, Navarro EG, Gainey-Schleicher T, Khanduri R, Groß A, Rossner F, Blaue C, Franz CM, Veil M, Puetz G, Hippe A, Dindorf J, Kashef J, Thiele W, Homey B, Greco C, Boucheix C, Baur A, Erbes T, Waller CF, Follo M, Hossein G, Sers C, Sleeman J, Nazarenko I. Tspan8 is expressed in breast cancer and regulates E-cadherin/catenin signalling and metastasis accompanied by increased circulating extracellular vesicles. J Pathol 2019; 248:421-437. [PMID: 30982971 PMCID: PMC6771825 DOI: 10.1002/path.5281] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 03/23/2019] [Accepted: 03/27/2019] [Indexed: 01/02/2023]
Abstract
Tspan8 exhibits a functional role in many cancer types including pancreatic, colorectal, oesophagus carcinoma, and melanoma. We present a first study on the expression and function of Tspan8 in breast cancer. Tspan8 protein was present in the majority of human primary breast cancer lesions and metastases in the brain, bone, lung, and liver. In a syngeneic rat breast cancer model, Tspan8+ tumours formed multiple liver and spleen metastases, while Tspan8− tumours exhibited a significantly diminished ability to metastasise, indicating a role of Tspan8 in metastases. Addressing the underlying molecular mechanisms, we discovered that Tspan8 can mediate up‐regulation of E‐cadherin and down‐regulation of Twist, p120‐catenin, and β‐catenin target genes accompanied by the change of cell phenotype, resembling the mesenchymal–epithelial transition. Furthermore, Tspan8+ cells exhibited enhanced cell–cell adhesion, diminished motility, and decreased sensitivity to irradiation. As a regulator of the content and function of extracellular vesicles (EVs), Tspan8 mediated a several‐fold increase in EV number in cell culture and the circulation of tumour‐bearing animals. We observed increased protein levels of E‐cadherin and p120‐catenin in these EVs; furthermore, Tspan8 and p120‐catenin were co‐immunoprecipitated, indicating that they may interact with each other. Altogether, our findings show the presence of Tspan8 in breast cancer primary lesion and metastases and indicate its role as a regulator of cell behaviour and EV release in breast cancer. © 2019 The Authors. The Journal of Pathology published by John Wiley & Sons Ltd on behalf of Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Maren Voglstaetter
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andreas R Thomsen
- Department of Radiation Oncology, Medical Center, University of Freiburg, Freiburg im Breisgau, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jerome Nouvel
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Arend Koch
- Institute of Neuropathology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Paul Jank
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Elena Grueso Navarro
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Tanja Gainey-Schleicher
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Richa Khanduri
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Andrea Groß
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Florian Rossner
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Carina Blaue
- DFG-Center for Functional Nanostructures, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Clemens M Franz
- DFG-Center for Functional Nanostructures, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Marina Veil
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Gerhard Puetz
- Institute of Clinical Chemistry and Laboratory Medicine, University of Freiburg, Freiburg im Breisgau, Germany
| | - Andreas Hippe
- Department of Dermatology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
| | - Jochen Dindorf
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Karlsruhe, Germany.,Department of Dermatology, University Hospital Erlangen, Erlangen, Germany.,Translational Research Center, Friedrich-Alexander-University of Erlangen-Nuernberg, Erlangen, Germany
| | - Jubin Kashef
- Institute for Photon Science and Synchrotron Radiation, Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany
| | - Wilko Thiele
- Medical Faculty, University of Heidelberg, Mannheim, Germany
| | - Bernhard Homey
- Department of Dermatology, Medical Faculty, University of Düsseldorf, Düsseldorf, Germany
| | - Celine Greco
- UMR-S935, Inserm, Université Paris Sud, Université Paris Saclay, Villejuif, France.,Department of Pain Management and Palliative Care, Necker Hospital, Paris, France
| | - Claude Boucheix
- UMR-S935, Inserm, Université Paris Sud, Université Paris Saclay, Villejuif, France.,Department of Pain Management and Palliative Care, Necker Hospital, Paris, France
| | - Andreas Baur
- Department of Dermatology, University Hospital Erlangen, Erlangen, Germany.,Translational Research Center, Friedrich-Alexander-University of Erlangen-Nuernberg, Erlangen, Germany
| | - Thalia Erbes
- Department of Gynecology and Obstetrics, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cornelius F Waller
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marie Follo
- Department of Medicine I, Medical Center, University of Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Ghamartaj Hossein
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Department of Animal Physiology, Laboratory of Developmental Biology, University of Tehran, Tehran, Iran
| | - Christine Sers
- Institute of Pathology, Charité Universitätsmedizin Berlin, Berlin, Germany
| | - Jonathan Sleeman
- Institute of Toxicology and Genetics, Karlsruhe Institute of Technology, Karlsruhe, Germany.,Medical Faculty, University of Heidelberg, Mannheim, Germany
| | - Irina Nazarenko
- Institute for Infection Prevention and Hospital Epidemiology; Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,German Cancer Consortium (DKTK), Partner Site Freiburg and German Cancer Research Center (DKFZ), Heidelberg, Germany
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Tilghman J, Schiapparelli P, Lal B, Ying M, Quinones-Hinojosa A, Xia S, Laterra J. Regulation of Glioblastoma Tumor-Propagating Cells by the Integrin Partner Tetraspanin CD151. Neoplasia 2016; 18:185-98. [PMID: 26992919 PMCID: PMC4796809 DOI: 10.1016/j.neo.2016.02.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/29/2016] [Accepted: 02/09/2016] [Indexed: 01/06/2023] Open
Abstract
Glioblastoma (GBM) stem cells (GSCs) represent tumor-propagating cells with stem-like characteristics (stemness) that contribute disproportionately to GBM drug resistance and tumor recurrence. Understanding the mechanisms supporting GSC stemness is important for developing therapeutic strategies for targeting GSC-dependent oncogenic mechanisms. Using GBM-derived neurospheres, we identified the cell surface tetraspanin family member CD151 as a novel regulator of glioma cell stemness, GSC self-renewal capacity, migration, and tumor growth. CD151 was found to be overexpressed in GBM tumors and GBM neurospheres enriched in GSCs. Silencing CD151 inhibited neurosphere forming capacity, neurosphere cell proliferation, and migration and attenuated the expression of markers and transcriptional drivers of the GSC phenotype. Conversely, forced CD151 expression promoted neurosphere self-renewal, cell migration, and expression of stemness-associated transcription factors. CD151 was found to complex with integrins α3, α6, and β1 in neurosphere cells, and blocking CD151 interactions with integrins α3 and α6 inhibited AKT phosphorylation, a downstream effector of integrin signaling, and impaired sphere formation and neurosphere cell migration. Additionally, targeting CD151 in vivo inhibited the growth of GBM neurosphere-derived xenografts. These findings identify CD151 and its interactions with integrins α3 and α6 as potential therapeutic targets for inhibiting stemness-driving mechanisms and stem cell populations in GBM.
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Affiliation(s)
- Jessica Tilghman
- Hugo W. Moser Research Institute at Kennedy Krieger, Baltimore, MD, 21205, USA; Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Paula Schiapparelli
- Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Bachuchu Lal
- Hugo W. Moser Research Institute at Kennedy Krieger, Baltimore, MD, 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Mingyao Ying
- Hugo W. Moser Research Institute at Kennedy Krieger, Baltimore, MD, 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Alfredo Quinones-Hinojosa
- Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA; Department of Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA; Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - Shuli Xia
- Hugo W. Moser Research Institute at Kennedy Krieger, Baltimore, MD, 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA
| | - John Laterra
- Hugo W. Moser Research Institute at Kennedy Krieger, Baltimore, MD, 21205, USA; Department of Neuroscience, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA; Department of Neurology, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA; Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, 21205, USA.
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Zheng ZZ, Tian Fu X, Liang J, Bing Guo Z. CT-1 induces angiogenesis by regulating the ADMA/DDAH Pathway. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2015; 159:540-6. [DOI: 10.5507/bp.2015.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2014] [Accepted: 02/18/2015] [Indexed: 11/23/2022] Open
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Detchokul S, Williams ED, Parker MW, Frauman AG. Tetraspanins as regulators of the tumour microenvironment: implications for metastasis and therapeutic strategies. Br J Pharmacol 2015; 171:5462-90. [PMID: 23731188 DOI: 10.1111/bph.12260] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Revised: 05/16/2013] [Accepted: 05/16/2013] [Indexed: 12/13/2022] Open
Abstract
UNLABELLED One of the hallmarks of cancer is the ability to activate invasion and metastasis. Cancer morbidity and mortality are largely related to the spread of the primary, localized tumour to adjacent and distant sites. Appropriate management and treatment decisions based on predicting metastatic disease at the time of diagnosis is thus crucial, which supports better understanding of the metastatic process. There are components of metastasis that are common to all primary tumours: dissociation from the primary tumour mass, reorganization/remodelling of extracellular matrix, cell migration, recognition and movement through endothelial cells and the vascular circulation and lodgement and proliferation within ectopic stroma. One of the key and initial events is the increased ability of cancer cells to move, escaping the regulation of normal physiological control. The cellular cytoskeleton plays an important role in cancer cell motility and active cytoskeletal rearrangement can result in metastatic disease. This active change in cytoskeletal dynamics results in manipulation of plasma membrane and cellular balance between cellular adhesion and motility which in turn determines cancer cell movement. Members of the tetraspanin family of proteins play important roles in regulation of cancer cell migration and cancer-endothelial cell interactions, which are critical for cancer invasion and metastasis. Their involvements in active cytoskeletal dynamics, cancer metastasis and potential clinical application will be discussed in this review. In particular, the tetraspanin member, CD151, is highlighted for its major role in cancer invasion and metastasis. LINKED ARTICLES This article is part of a themed section on Cytoskeleton, Extracellular Matrix, Cell Migration, Wound Healing and Related Topics. To view the other articles in this section visit http://dx.doi.org/10.1111/bph.2014.171.issue-24.
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Affiliation(s)
- S Detchokul
- Clinical Pharmacology and Therapeutics Unit, Department of Medicine (Austin Health/Northern Health), The University of Melbourne, Heidelberg, Vic., Australia
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Abstract
Tetraspanins are a superfamily of small transmembrane proteins that are expressed in almost all eukaryotic cells. Through interacting with one another and with other membrane and intracellular proteins, tetraspanins regulate a wide range of proteins such as integrins, cell surface receptors, and signaling molecules, and thereby engage in diverse cellular processes ranging from cell adhesion and migration to proliferation and differentiation. In particular, tetraspanins modulate the function of proteins involved in all determining factors of cell migration including cell-cell adhesion, cell-ECM adhesion, cytoskeletal protrusion/contraction, and proteolytic ECM remodeling. We herein provide a brief overview of collective in vitro and in vivo studies of tetraspanins to illustrate their regulatory functions in the migration and trafficking of cancer cells, vascular endothelial cells, skin cells (keratinocytes and fibroblasts), and leukocytes. We also discuss the involvement of tetraspanins in various pathologic and remedial processes that rely on cell migration and their potential value as targets for therapeutic intervention.
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Affiliation(s)
| | - Jiaping Zhang
- a Institute of Burn Research ; State Key Laboratory of Trauma; Burns and Combined Injury; Southwest Hospital; The Third Military Medical University ; Chongqing , China
| | - Yuesheng Huang
- a Institute of Burn Research ; State Key Laboratory of Trauma; Burns and Combined Injury; Southwest Hospital; The Third Military Medical University ; Chongqing , China
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Involvement of activation of C-met signaling pathway in CD151-induced HUVECs angiogenesis. ACTA ACUST UNITED AC 2015; 35:35-41. [PMID: 25673190 DOI: 10.1007/s11596-015-1385-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 10/27/2014] [Indexed: 12/16/2022]
Abstract
CD151 is a member of the tetraspanin family that is implicated as a promoter of pathological or physiological angiogenesis. C-Met is expressed on a variety of cells including vascular endothelial cells (VECs) and up-regulated during angiogenesis. In this study, we investigated whether CD151 regulated migration, proliferation, tube formation and angiogenesis of human umbilical VECs (HUVECs) with activation of C-Met. Moreover, we studied whether CD151 could affect the angiogenic molecules such as nitric oxide (NO), vascular cell adhesion molecule-1 (VCAM-1) and vascular endothelial growth factor (VEGF). The expression of CD151 was determined by Western blotting. The cell proliferation assay was performed using the cell counting kit-8 (CCK-8) method and cell migration was assessed in microchemotaxis chambers by using fetal bovine serum (FBS) as the chemotactic stimulus. The angiogenic molecules were evaluated using ELISA. The NO level was detected using NO detection kit. The potential involvement of various signaling pathways was explored using relevant antibodies. We found that proliferation, migration and tube formation of HUVECs were promoted by CD151 with activation of C-Met, FAK and CDC42, while they were suppressed with CD151 knockdown by RNAi. Similarly, the levels of NO, VCAM-1 and VEGF in HUVECs were increased by CD151, but they were inhibited with CD151 knockdown by RNAi. These data suggested that CD151 could promote migration, proliferation, tube formation and angiogenesis of HUVECs, which was possibly related to the C-Met signaling pathways.
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Abstract
An abundance of evidence shows supporting roles for tetraspanin proteins in human cancer. Many studies show that the expression of tetraspanins correlates with tumour stage, tumour type and patient outcome. In addition, perturbations of tetraspanins in tumour cell lines can considerably affect cell growth, morphology, invasion, tumour engraftment and metastasis. This Review emphasizes new studies that have used de novo mouse cancer models to show that select tetraspanin proteins have key roles in tumour initiation, promotion and metastasis. This Review also emphasizes how tetraspanin proteins can sometimes participate in tumour angiogenesis. These recent data build an increasingly strong case for tetraspanins as therapeutic targets.
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Detchokul S, Newell B, Williams ED, Frauman AG. CD151 is associated with prostate cancer cell invasion and lymphangiogenesis in vivo. Oncol Rep 2013; 31:241-7. [PMID: 24174171 DOI: 10.3892/or.2013.2823] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Accepted: 09/18/2013] [Indexed: 11/06/2022] Open
Abstract
CD151, a member of the tetraspanin family, is associated with regulation of migration of normal and tumour cells via cell surface microdomain formation. CD151 was found in our laboratory to have a prognostic value in prostate cancer and is a promoter of prostate cancer migration and invasion. These roles involve association with integrins on both cell-cell and cell-stroma levels. Furthermore, CD151 plays a role in endothelial cell motility. CD151 expression was examined in three commonly used prostate cancer cell lines. We investigated CD151 expression, angiogenesis (microvessel density; MVD) and lymphangiogenesis (lymphatic vessel density; LVD) in an orthotopic xenograft model of prostate cancer in matched tumours from primary and secondary sites. CD151 was found to be heterogeneously expressed across different prostate cancer cell lines and the levels of CD151 expression were significantly higher in the highly tumorigenic, androgen-insensitive cells PC-3 and DU-145 compared to the androgen-sensitive cell line LNCaP (P<0.05). The majority of in vivo xenografts developed pelvic lymph node metastases. Importantly, primary tumours that developed metastasis had significantly higher CD151 expression and MVD compared to those which did not develop metastasis (P<0.05). We identified, for the first time, that CD151 expression is associated with LVD in prostate cancer. These findings underscore the potential role of CD151 and angiogenesis in the metastatic potential of prostate cancer. CD151 has a prognostic value in this mouse model of prostate cancer and may play a role in lymphangiogenesis. CD151 is likely an important regulator of cancer cell communication with the surrounding microenvironment.
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Affiliation(s)
- Sujitra Detchokul
- Clinical Pharmacology and Therapeutics Unit, Department of Medicine (Austin Health/Northern Health), The University of Melbourne, Heidelberg, VIC, Australia
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In situ stable isotopic constraints on dolomitizing fluids for the hydrothermally-originated saddle dolomites at Keping, Tarim Basin. CHINESE SCIENCE BULLETIN-CHINESE 2013. [DOI: 10.1007/s11434-013-5801-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Sala-Valdés M, Ailane N, Greco C, Rubinstein E, Boucheix C. Targeting tetraspanins in cancer. Expert Opin Ther Targets 2012; 16:985-97. [PMID: 22880813 DOI: 10.1517/14728222.2012.712688] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
INTRODUCTION Tetraspanins are a family of small proteins that cross the membrane four times and form complexes by interacting between themselves and with a variety of transmembrane and cytosolic proteins, building a network of interactions referred to as tetraspanin web or tetraspanin enriched microdomains (TEMs). These domains provide a signaling platform involved in many important cellular functions and malignant processes. AREAS COVERED The authors describe the methods and the rationale for targeting tetraspanins in the therapy of cancer in this review. EXPERT OPINION Targeting tetraspanins in cancer may be a promising therapy due to the importance of tetraspanins in several steps of tumor formation, communication with the environment, dissemination, and metastasis.
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Affiliation(s)
- Mónica Sala-Valdés
- André Lwoff Institute, Inserm U1004, Hôpital Paul Brousse, 14 Avenue Paul Vaillant Couturier, Villejuif 94800, France.
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Zhu GH, Huang C, Qiu ZJ, Liu J, Zhang ZH, Zhao N, Feng ZZ, Lv XH. Expression and prognostic significance of CD151, c-Met, and integrin alpha3/alpha6 in pancreatic ductal adenocarcinoma. Dig Dis Sci 2011; 56:1090-8. [PMID: 20927591 DOI: 10.1007/s10620-010-1416-x] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2010] [Accepted: 08/26/2010] [Indexed: 12/20/2022]
Abstract
BACKGROUND CD151, c-Met, and integrin alpha3/alpha6 are all involved in the hepatocyte growth factor (HGF)/c-Met signal pathway, which plays an important role in the malignant progression of tumors. AIMS The purpose of this study was to explore the expression and prognostic significance of these proteins in pancreatic ductal adenocarcinoma (PDAC). METHODS We used immunohistochemical methods to investigate the expression patterns of CD151, c-Met, and integrin alpha3/alpha6proteins in 71 patients with PDAC and in ten samples of normal pancreatic tissue. We also assessed correlations between these proteins and clinicopathological parameters and survival of PDAC patients using various statistical methods. RESULTS CD151, c-Met, and integrin alpha3/alpha6 were all overexpressed in PDAC. CD151 and c-Met overexpressions were significantly associated with TNM stage (p=0.001 and p=0.038, respectively) and lymph node invasion (p=0.000, p=0.012, respectively). A significant positive linear correlation was found between CD151 and c-Met (r=0.583; p=0.000), integrin alpha3 (r=0.457; p=0.000), and integrin alpha6 (r=0.671; p=0.000). Overexpression of CD151, c-Met, integrin alpha3, or integrin alpha6 was related to poor survival of PDAC patients (p=0.000, p=0.000, p=0.005, and p=0.003, respectively), and CD151 and c-Met were independent factors in prognosis of PDAC. CONCLUSIONS CD151, c-Met, and integrin alpha3/alpha6 were all overexpressed in PDAC. CD151 and c-Met might be new molecular markers to predict the prognosis of PDAC patients.
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Affiliation(s)
- Guang-Hui Zhu
- Department of General Surgery, Affiliated First People's Hospital, Shanghai Jiao Tong University, 200080, Shanghai, China.
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Baumer Y, Funk D, Schlosshauer B. Does telomerase reverse transcriptase induce functional de-differentiation of human endothelial cells? Cell Mol Life Sci 2010; 67:2451-65. [PMID: 20352467 PMCID: PMC11115536 DOI: 10.1007/s00018-010-0349-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2009] [Revised: 02/26/2010] [Accepted: 03/09/2010] [Indexed: 01/05/2023]
Abstract
By counteracting the shortening of chromosome telomeres, telomerase reverse transcriptase (hTERT) prevents senescence and age-related cell death. Embryonic cells display a high telomerase activity that declines rapidly with cell differentiation. Conversely, de-differentiated tumor cells tend to re-express telomerase. In view of the controversial data on the reciprocal correlation between cell proliferation and differentiation, we questioned whether telomerase overexpression and the resulting immortalization would affect the functional phenotype of human endothelial cells. Our comparative analysis addressed (1) distinct cell adhesion to different ECM-proteins analyzed on miniaturized multisubstrate arrays (MSA), (2) protein expression of diverse markers, (3) the uptake of DiI-Ac-LDL, (4) the inflammatory response based on upregulation of ICAM-1, (5) tube formation, and (6) the barrier properties of cell monolayers in transfilter cultures. Our results, based on some 40 data sets, demonstrate that immortalization of primary endothelial cells by hTERT maintains the typical endothelial characteristics without any sign of functional de-differentiation.
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Affiliation(s)
- Yvonne Baumer
- NMI, Natural and Medical Sciences Institute at the University of Tübingen, Markwiesenstraße 55, 72770 Reutlingen, Germany
| | - Dorothee Funk
- NMI, Natural and Medical Sciences Institute at the University of Tübingen, Markwiesenstraße 55, 72770 Reutlingen, Germany
| | - Burkhard Schlosshauer
- NMI, Natural and Medical Sciences Institute at the University of Tübingen, Markwiesenstraße 55, 72770 Reutlingen, Germany
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Zuo HJ, Lin JY, Liu ZY, Liu WF, Liu T, Yang J, Liu Y, Wang DW, Liu ZX. Activation of the ERK signaling pathway is involved in CD151-induced angiogenic effects on the formation of CD151-integrin complexes. Acta Pharmacol Sin 2010; 31:805-12. [PMID: 20581856 DOI: 10.1038/aps.2010.65] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
AIM To assess the roles of extracellular signal-regulated kinase (ERK), p38, and CD151-integrin complexes on proliferation, migration, and tube formation activities of CD151-induced human umbilical vein endothelial cells (HUVECs). METHODS CD151, anti-CD151 and CD151-AAA mutant were inserted into recombinant adeno-associated virus (rAAV) vectors and used to transfect HUVECs. After transfection, the expression of CD151 was measured. Proliferation was assessed using the 3-[4,5-dimethylthiazol- 2-yl]-2,5-diphenyl tetrazolium bromide (MTT) assay. Cell migration was evaluated in Boyden transwell chambers using FBS as the chemotactic stimulus. The tube formation assay was performed on matrigel. The potential involvement of various signaling pathways was explored using selective inhibitors. RESULTS CD151 gene delivery increased the expression of CD151 at both the mRNA and protein levels. Overexpression of CD151 promoted cell proliferation, migration and tube formation in vitro, and phosphorylation of ERK was also increased. Further, CD151-induced cell proliferation, migration, and tube formation were attenuated by the ERK inhibitor PD98059 (20 micromol/L) but not by a p38 inhibitor (SB203580, 20 micromol/L). Moreover, there was no significant difference in CD151 protein expression between the CD151 group and the CD151-AAA group, but the CD151-AAA mutant abrogated cellular proliferation, migration, and tube formation and decreased the phosphorylation of ERK. CONCLUSION This study suggests that activation of the ERK signaling pathway may be involved in the angiogenic effects of CD151. Activation of ERK was dependent on the formation of CD151-integrin complexes. Therefore modulation of CD151 may be as a novel therapeutic strategy for regulating angiogenesis.
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Zuo H, Liu Z, Liu X, Yang J, Liu T, Wen S, Zhang XA, Cianflone K, Wang D. CD151 gene delivery after myocardial infarction promotes functional neovascularization and activates FAK signaling. Mol Med 2009; 15:307-15. [PMID: 19603100 DOI: 10.2119/molmed.2009.00025] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2009] [Accepted: 06/04/2009] [Indexed: 11/06/2022] Open
Abstract
Our previous studies showed that tetraspanin CD151 promotes neovascularization in rat hindlimb and myocardial ischemia models. This study is to assess whether CD151 induces arteriogenesis and promotes functional neovascularization in a pig myocardial infarction model, and to determine the signaling pathways involved. CD151 cDNA and antiCD151 sequence were constructed into a recombinant adeno-associated virus (rAAV) vector. All 26 pigs used either were subjected to coronary artery ligation or did not undergo surgery. Eight wks after viral administration, the expression of CD151 protein was measured by Western blot. The densities of capillaries and arterioles were determined using immunohistochemistry. Regional myocardial perfusion and other myocardial functions were evaluated by (13)N-labeled NH(3) positron emission computed tomography ((13)N-NH(3) PET) and echocardiography. Western blot was performed for assessing the signaling mechanisms. Overexpression of CD151 markedly increased the densities of capillaries and arterioles, significantly enhanced the regional myocardial perfusion, reduced myocardial ischemia, and improved the myocardial contraction, wall motion, and wall thickness. Conversely, antiCD151 gene delivery reversed the above changes. In addition, CD151 activated focal adhesion kinase (FAK), extracellular signal-regulated kinase (ERK), c-Jun N-teminal kinase (JNK), phosphatidylinositol-3 kinase (PI3K), protein kinase B (Akt), and endothelial nitric-oxide synthase (eNOS), and increased nitric oxide (NO) level. These findings demonstrate a robust role of CD151 in inducing and/or upregulating neovascularization. CD151-dependent neovascularization correlates with the activations of FAK, mitogen activated protein kinases (MAPKs), and PI3K signaling, suggesting that CD151 may promote neovascularization via MAPKs and PI3K pathways.
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Affiliation(s)
- Houjuan Zuo
- Department of Cardiology of Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Assessment of myocardial blood perfusion improved by CD151 in a pig myocardial infarction model. Acta Pharmacol Sin 2009; 30:70-7. [PMID: 19079294 DOI: 10.1038/aps.2008.10] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
AIM To appraise the efficacy of CD151-induced myocardial therapeutic angiogenesis in a pig myocardial infarction model. METHODS CD151 and anti-CD151 were constructed into the recombinant adeno-associated virus (rAAV) vector. All 26 pigs were subjected to coronary artery ligation or no surgery. Eight weeks after coronary artery ligation, the expression of CD151 was measured by Western blot and immunostaining. Capillary density was evaluated using immunostaining for von Willebrand factor (vWF). 13N-labeled NH3 positron emission computed tomography ([13N]NH3PET) was measured to assess regional myocardial perfusion and the defect area. RESULTS CD151 gene delivery could increase the expression of CD151 at protein level. Over-expression of CD151 increased the density of total capillaries in the ischemic myocardium, significantly improved the blood perfusion and reduced the defect area percentage. CONCLUSION This study demonstrated that the rAAV-mediated CD151 gene delivery promoted efficient neovascularization and increased the blood perfusion after myocardial infarction in pigs.
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