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He JH, Shen W, Han D, Yan M, Luo M, Deng H, Weng S, He J, Xu X. Molecular mechanism of the interaction between Megalocytivirus-induced virus-mock basement membrane (VMBM) and lymphatic endothelial cells. J Virol 2023; 97:e0048023. [PMID: 37877715 PMCID: PMC10688346 DOI: 10.1128/jvi.00480-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 09/26/2023] [Indexed: 10/26/2023] Open
Abstract
IMPORTANCE Viruses are able to mimic the physiological or pathological mechanism of the host to favor their infection and replication. Virus-mock basement membrane (VMBM) is a Megalocytivirus-induced extracellular structure formed on the surface of infected cells and structurally and functionally mimics the basement membrane of the host. VMBM provides specific support for lymphatic endothelial cells (LECs) rather than blood endothelial cells to adhere to the surface of infected cells, which constitutes a unique phenomenon of Megalocytivirus infection. Here, the structure of VMBM and the interactions between VMBM components and LECs have been analyzed at the molecular level. The regulatory effect of VMBM components on the proliferation and migration of LECs has also been explored. This study helps to understand the mechanism of LEC-specific attachment to VMBM and to address the issue of where the LECs come from in the context of Megalocytivirus infection.
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Affiliation(s)
- Jian-hui He
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Wenjie Shen
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Deyu Han
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Muting Yan
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Mengting Luo
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Hengwei Deng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Shaoping Weng
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Jianguo He
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
| | - Xiaopeng Xu
- State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-sen University, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, China
- Institute of Aquatic Economic Animals and Guangdong Provice Key Laboratory for Aquatic Economic Animals, Sun Yat-sen University, Guangzhou, China
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Rokavec M, Jaeckel S, Hermeking H. Nidogen-1/NID1 Function and Regulation during Progression and Metastasis of Colorectal Cancer. Cancers (Basel) 2023; 15:5316. [PMID: 38001576 PMCID: PMC10670298 DOI: 10.3390/cancers15225316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 10/31/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
We have previously shown that the extracellular matrix and basement membrane protein Nidogen1 (NID1) is secreted by more malignant, mesenchymal-like CRC cells and induces the epithelial-mesenchymal transition (EMT) and promotes the migration and invasion of less malignant, epithelial-like CRC cells. Here, we performed a comprehensive bioinformatics analysis of multiple datasets derived from CRC patients and showed that elevated expression of NID1 and the genes ITGA3, ITGB1, and ITGAV, which encode NID1 receptors, is associated with poor prognosis and advanced tumor stage. Accordingly, the expression of NID1, ITGA3, ITGB1, and ITGAV was associated with an EMT signature, which included SNAIL/SNAI1, an EMT-inducing transcription factor. In CRC cells, ectopic SNAIL expression induced NID1 and SNAIL occupancy was detected at an E-box upstream of the NID1 transcription start site. Therefore, NID1 represents a direct target of SNAIL. Ectopic expression of NID1 or treatment with NID1-containing medium endowed non-metastatic CRC cells with the capacity to form lung metastases after xenotransplantation into mice. Suppression of the NID1 receptor ITGAV decreased cell viability, particularly in CMS/consensus molecular subtype 4 CRC cells. Taken together, our results show that NID1 is a direct target of EMT-TF SNAIL and is associated with and promotes CRC progression and metastasis. Furthermore, the NID1 receptor ITGAV represents a candidate therapeutic target in CMS4 colorectal tumors.
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Affiliation(s)
- Matjaz Rokavec
- Experimental and Molecular Pathology, Institute of Pathology, Medical Faculty, Ludwig-Maximilians-Universität München, D-80337 Munich, Germany
| | - Stephanie Jaeckel
- Experimental and Molecular Pathology, Institute of Pathology, Medical Faculty, Ludwig-Maximilians-Universität München, D-80337 Munich, Germany
| | - Heiko Hermeking
- Experimental and Molecular Pathology, Institute of Pathology, Medical Faculty, Ludwig-Maximilians-Universität München, D-80337 Munich, Germany
- German Cancer Consortium (DKTK), Partner Site Munich, D-80336 Munich, Germany
- German Cancer Research Center (DKFZ), D-69129 Heidelberg, Germany
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Ma YB, Qiao JW, Hu X. Transmembrane serine protease 2 cleaves nidogen 1 and inhibits extrahepatic liver cancer cell migration and invasion. Exp Biol Med (Maywood) 2023; 248:91-105. [PMID: 36408877 PMCID: PMC10041054 DOI: 10.1177/15353702221134111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
We aimed to confirm whether transmembrane serine protease 2 (TMPRSS2) regulates nidogen 1 (NID1) expression in extracellular vesicles (EVs) and metastatic hepatocellular carcinoma (HCC) cells. HCC cells, HUVEC cells, MRC-5 cells, HLE cells, MHCCLM3 cells, MHCC97L cells, H2P cells, H2M cells, as well as LO2 cells were cultured according to providers' instruction and EV models were established by using BALB/cAnN-nu mice to facilitate the verifications. We found that TMPRSS2 expression was inversely correlated with the metastatic potential of HCC cell lines. The expression of TMPRSS2 decreased in a time-dependent manner in tumor-bearing model mice implanted with MHCCLM3 cells compared with uninoculated mice. TMPRSS2 overexpression in MHCCLM3 and MHCC97L cells led to the significant downregulation of NID1 expression in total cell lysates and isolated EVs. In contrast, TMPRSS2 silencing resulted in the elevation of NID1 expression in cells and EVs. Administration of EVs from MHCCLM3 and MHCC97L cells with overexpressed or silenced TMPRSS2 inhibited or strengthened, respectively, the invasion, proliferation, and migration of LO2 tumor cells. EVs derived from MHCCLM3 and MHCC97L cells with overexpressed or depleted TMPRSS2 also deactivated or activated fibroblasts, respectively. These EVs secrete inflammatory cytokines and phosphorylated p65, facilitate the colonization of fibroblasts, and augment fibroblast growth and motility. These findings provide evidence for a new candidate drug targeting tumorigenic EV-NID1 to treat HCC.
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Affiliation(s)
- Yong-Biao Ma
- Department of Hepatobiliary Surgery, Weifang People's Hospital, Weifang 261041, China
- Department of Hepatobiliary Surgery, Shandong Provincial Hospital, Shandong University, Jinan 250021, China
| | - Jian-Wen Qiao
- Department of Hepatobiliary Surgery, Weihai Municipal Hospital, Cheeloo College of Medicine, Shandong University, Weihai 264200, China
| | - Xiao Hu
- Department of Hepatobiliary Pancreatic Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266003, China
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Bianchi L, Altera A, Barone V, Bonente D, Bacci T, De Benedetto E, Bini L, Tosi GM, Galvagni F, Bertelli E. Untangling the Extracellular Matrix of Idiopathic Epiretinal Membrane: A Path Winding among Structure, Interactomics and Translational Medicine. Cells 2022; 11:cells11162531. [PMID: 36010606 PMCID: PMC9406781 DOI: 10.3390/cells11162531] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 12/16/2022] Open
Abstract
Idiopathic epiretinal membranes (iERMs) are fibrocellular sheets of tissue that develop at the vitreoretinal interface. The iERMs consist of cells and an extracellular matrix (ECM) formed by a complex array of structural proteins and a large number of proteins that regulate cell–matrix interaction, matrix deposition and remodelling. Many components of the ECM tend to produce a layered pattern that can influence the tractional properties of the membranes. We applied a bioinformatics approach on a list of proteins previously identified with an MS-based proteomic analysis on samples of iERM to report the interactome of some key proteins. The performed pathway analysis highlights interactions occurring among ECM molecules, their cell receptors and intra- or extracellular proteins that may play a role in matrix biology in this special context. In particular, integrin β1, cathepsin B, epidermal growth factor receptor, protein-glutamine gamma-glutamyltransferase 2 and prolow-density lipoprotein receptor-related protein 1 are key hubs in the outlined protein–protein cross-talks. A section on the biomarkers that can be found in the vitreous humor of patients affected by iERM and that can modulate matrix deposition is also presented. Finally, translational medicine in iERM treatment has been summed up taking stock of the techniques that have been proposed for pharmacologic vitreolysis.
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Affiliation(s)
- Laura Bianchi
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Annalisa Altera
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Virginia Barone
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Denise Bonente
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
| | - Tommaso Bacci
- Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Elena De Benedetto
- Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Luca Bini
- Department of Life Sciences, University of Siena, 53100 Siena, Italy
| | - Gian Marco Tosi
- Department of Medicine, Surgery and Neuroscience, University of Siena, 53100 Siena, Italy
| | - Federico Galvagni
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Eugenio Bertelli
- Department of Molecular and Developmental Medicine, University of Siena, 53100 Siena, Italy
- Correspondence:
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Bayramoglu Z, Kılınc ANU, Omeroglu E, Yilmaz F, Bayramoglu D, Unlu Y, Aydin HA. Expression of extracellular matrix proteins nidogen-1 and legumain in endometrial carcinomas. J Obstet Gynaecol Res 2022; 48:1019-1025. [PMID: 35128760 DOI: 10.1111/jog.15158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 01/06/2022] [Accepted: 01/10/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Our purpose was to comparatively investigate the expressions of nidogen-1 (NID1) and legumain (LGMN) in patients with endometrial cancer, endometrial intraepithelial neoplasia, and proliferative endometrium. METHODS A cross-sectional, single-center study was performed by the obstetrics and gynecology and pathology departments of our institution. The relationships between descriptive data, clinicopathologic information, and immunohistochemical expressions of NID1 and LGMN were investigated. RESULTS The histological grades of endometrial cancers (n = 124) as classified by FIGO included 1 (41, 21.1%), 2 (48, 24.7%), and 3 (35, 18.0%). The medians and ranges of deep and superficial NID1 expressions were 50.00 (0-285) and 5.00 (0-100), respectively. The intensity of legumain expression was noted as negative (30, 24.2%), mild (16, 12.9%), moderate (27, 21.8%), or strong (51, 41.1%). Median disease-free survival and overall survival were 75.00 (range: 1 to 170) months and 77.00 (range: 1 to 170) months, respectively. Patients with more intense expression of NID1 and LGMN displayed a higher histological grade. These patients were more likely to have a positive peritoneal cytology, larger tumor size, higher tendency for myometrial or lymphovascular invasion, involvement of ovaries, cervix, omentum, as well as lymph node metastasis, and recurrence. CONCLUSION Our data indicated that the expressions of NID1 and LGMN may have important diagnostic implications in endometrial pathologies. Further studies should be performed to understand the significance of NID1 and LGMN in the pathogenesis of endometrial tumors.
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Affiliation(s)
| | | | - Ethem Omeroglu
- Department of Pathology, Konya City Hospital, Konya, Turkey
| | - Fatih Yilmaz
- Department of Gynecological Oncology, Konya City Hospital, Konya, Turkey
| | | | - Yasar Unlu
- Department of Pathology, Konya City Hospital, Konya, Turkey
| | - Hulya A Aydin
- Department of Gynecological Oncology, Hatay Government Hospital, Antakya, Hatay, Turkey
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Singer SN, Ndumnego OC, Kim RS, Ndung'u T, Anastos K, French A, Churchyard G, Paramithiothis E, Kasprowicz VO, Achkar JM. Plasma host protein biomarkers correlating with increasing Mycobacterium tuberculosis infection activity prior to tuberculosis diagnosis in people living with HIV. EBioMedicine 2022; 75:103787. [PMID: 34968761 PMCID: PMC8718743 DOI: 10.1016/j.ebiom.2021.103787] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 11/30/2021] [Accepted: 12/14/2021] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Biomarkers correlating with Mycobacterium tuberculosis infection activity/burden in asymptomatic individuals are urgently needed to identify and treat those at highest risk for developing active tuberculosis (TB). Our main objective was to identify plasma host protein biomarkers that change over time prior to developing TB in people living with HIV (PLHIV). METHODS Using multiplex MRM-MS, we investigated host protein expressions from 2 years before until time of TB diagnosis in longitudinally collected (every 3-6 months) and stored plasma from PLHIV with incident TB, identified within a South African (SA) and US cohort. We performed temporal trend and discriminant analyses for proteins, and, to assure clinical relevance, we further compared protein levels at TB diagnosis to interferon-gamma release assay (IGRA; SA) or tuberculin-skin test (TST; US) positive and negative cohort subjects without TB. SA and US exploratory data were analyzed separately. FINDINGS We identified 15 proteins in the SA (n=30) and 10 in the US (n=24) incident TB subjects which both changed from 2 years prior until time of TB diagnosis after controlling for 10% false discovery rate, and were significantly different at time of TB diagnosis compared to non-TB subjects (p<0.01). Five proteins, CD14, A2GL, NID1, SCTM1, and A1AG1, overlapped between both cohorts. Furthermore, after cross-validation, panels of 5 - 12 proteins were able to predict TB up to two years before diagnosis. INTERPRETATION Host proteins can be biomarkers for increasing Mycobacterium tuberculosis infection activity/burden, incipient TB, and predict TB development in PLHIV. FUNDING NIH/NIAID AI117927, AI146329, and AI127173 to JMA.
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Affiliation(s)
- Sarah N Singer
- Departments of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | | | - Ryung S Kim
- Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Thumbi Ndung'u
- Africa Health Research Institute, Durban 4013, South Africa; HIV Pathogenesis Programme, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa; Ragon Institute of MGH, MIT and Harvard University, Cambridge, MA, USA; Max Planck Institute of Infection Biology, Berlin, Germany; Division of Infection and Immunity, University College London, London, UK
| | - Kathryn Anastos
- Departments of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA; Epidemiology and Population Health, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - Audrey French
- Department of Medicine, Stroger Hospital of Cook County, Chicago, IL, USA
| | - Gavin Churchyard
- Aurum Institute, Johannesburg, South Africa; School of Public Health, University of Witwatersrand, Johannesburg, South Africa; Department of Medicine, Vanderbilt University, Nashville, TN, USA
| | - Eustache Paramithiothis
- CellCarta Biosciences Inc, 201 President-Kennedy Ave., Suite 3900 Montreal, H2×3Y7, Quebec, Canada
| | - Victoria O Kasprowicz
- Africa Health Research Institute, Durban 4013, South Africa; HIV Pathogenesis Programme, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa; Ragon Institute of MGH, MIT and Harvard University, Cambridge, MA, USA
| | - Jacqueline M Achkar
- Departments of Medicine, Albert Einstein College of Medicine, Bronx, NY 10461, USA; Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
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Urooj T, Wasim B, Mushtaq S, Haider G, Shah SNN, Ghani R, Qureshi MFH. Increased NID1 Expression among Breast Cancer Lung Metastatic Women; A Comparative Analysis between Naive and Treated Cases. Recent Pat Anticancer Drug Discov 2021; 15:59-69. [PMID: 32116201 DOI: 10.2174/1574892815666200302115438] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 02/25/2020] [Accepted: 02/28/2020] [Indexed: 01/02/2023]
Abstract
BACKGROUND Lungs are the second most common reported site of distant metastasis in Breast cancer after bone. Mostly the studies were conducted in cell lines and animal model. To date, there is no blood biomarker reported that could determine the breast cancer progression in terms of lung metastasis. OBJECTIVE The aim of this study is to determine Nidogen-1 (NID1)'s mRNA and protein expressions in non-invasive blood samples of breast cancer, in early (II) and lung metastasis advanced stages (III & IV) of naive and treated groups. To determine the functional association of NID1, we employed an in silico analysis, STRING database version 11. METHODS A total of n = 175 cases of breast cancer were recruited in our study. Real time quantitative PCR and ELISA were performed to analyze the mRNA and protein expressions of NID1 respectively. An in silico method is also used to assess NID1's interactome. Some significant patents related to this topic were also studied and discussed in this research paper. RESULTS The results show high levels of NID1's mRNA in the naive group (Group A) as compared to treated group (Group B). Similar trend of increased NID1's protein expressions was also observed among naive and treated groups, respectively. Our results also show the significant impact of treatment on NID1's gene and protein expressions. In silico analysis has revealed the functional association of NID1 with its different interactome protein partners. CONCLUSION The increased expression of NID1 in early to advanced naive as compared to the treated groups with lung metastasis makes it a promising marker which has pro-metastatic role in breast cancer.
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Affiliation(s)
- Tabinda Urooj
- Anatomy Department, Ziauddin University, Clifton, Karachi 74700, Sindh, Pakistan
| | - Bushra Wasim
- Anatomy Department, Ziauddin University, Clifton, Karachi 74700, Sindh, Pakistan
| | - Shamim Mushtaq
- Biochemistry Department, Ziauddin University, Clifton, Karachi 74700, Sindh, Pakistan
| | - Ghulam Haider
- Oncology Department, Jinnah Postgraduate Medical Center, Karachi 75510, Pakistan
| | - Syed N N Shah
- Anatomy Department, Ziauddin University, Clifton, Karachi 74700, Sindh, Pakistan
| | - Rubina Ghani
- Biochemistry Department, Jinnah Medical and Dental College, Karachi 74800, Pakistan
| | - Muhammad F H Qureshi
- Biochemistry Department, Ziauddin University, Clifton, Karachi 74700, Sindh, Pakistan
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8
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Lusche DF, Klemme MR, Soll BA, Reis RJ, Forrest CC, Nop TS, Wessels DJ, Berger B, Glover R, Soll DR. Integrin α-3 ß-1's central role in breast cancer, melanoma and glioblastoma cell aggregation revealed by antibodies with blocking activity. MAbs 2019; 11:691-708. [PMID: 30810437 DOI: 10.1080/19420862.2019.1583987] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Breast cancer, melanoma and glioblastoma cells undergo cell-mediated aggregation and aggregate coalescence in a transparent 3D Matrigel environment. Cells from normal tissue and non-tumorigenic cell lines do not exhibit these behaviors. Here, 266 monoclonal antibodies (mAbs) demonstrated to interact with a wide variety of membrane, secreted and matrix proteins, have been screened for their capacity to block these tumorigenic cell-specific behaviors in a 3D environment. Remarkably, only six of the 266 tested mAbs exhibited blocking activity, four targeting integrin ß-1, one targeting integrin α-3 and one targeting CD44. Colocalization of integrins ß-1 and α-3 in fixed cells and in live aggregates suggests that the integrin α-3 ß-1 dimer plays a central role in cancer cell aggregation in the 3D environment provided by Matrigel. Our results suggest that blocking by anti-integrin and anti-CD44 mAbs involves interference in cell-cell interactions.
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Affiliation(s)
- Daniel F Lusche
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Michael R Klemme
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Benjamin A Soll
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Ryan J Reis
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Cristopher C Forrest
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Tiffany S Nop
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Deborah J Wessels
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Brian Berger
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - Rebecca Glover
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
| | - David R Soll
- a The Developmental Studies Hybridoma Bank, Department of Biology , University of Iowa , Iowa City , IA , USA
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Wang J, Zhao Y, Xu H, Ma J, Liang F, Zou Q, Lin F. Silencing NID2 by DNA Hypermethylation Promotes Lung Cancer. Pathol Oncol Res 2019; 26:801-811. [PMID: 30826972 DOI: 10.1007/s12253-019-00609-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Accepted: 01/22/2019] [Indexed: 12/16/2022]
Abstract
To characterize the DNA methylation as well as exploring the relationship between NID2 methylation and the lung cancer development. Collecting chip data of 9 lung cancer samples and 11 adjacent normal samples from the Gene Expression Omnibus database. Tissues and cells NID2 gene methylation level was measured by methylation-specific PCR. NID2 mRNA level and protein level were validated by Real-Time PCR and Western blot separately. Functional study of lung cancer cells was performed with Cell Counting Kit-8 assay. Colony formation assay, transwell assay, wound healing assay and low cytometry were performed. Finally, NID2 tumorigenesis in vivo was tested in nude mice xenograft models. Microarray analysis outcome present NID2 hypermethylation status in lung cancer tissues. High methylation and low mRNA expression levels of NID2 were detected. After NID2 demethylation or overexpression in cancer cells, cell viability, proliferation, migration as well as invasion ability decreased. Nevertheless, a significant enhancement in apoptosis rate were observed. Overexpressing NID2 or demethylation in lung cancer cells inhibited the tumorigenesis of lung cancer in nude mice. The mRNA and protein level of NID2 in tumors obtained from nude mice xenograft were unanimous with the in vitro assays' outcome, which significantly decreased after overexpressing NID2 or demethylation. NID2 methylation reduces its expression level and promotes the development of lung cancer.
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Affiliation(s)
- Jianfeng Wang
- Department of Radiotherapy, China-Japan Union Hospital of Jilin University, Changchun, Jilin, 130031, China
| | - Yan Zhao
- Medical Examination Center, The Second Hospital of Jilin University, Changchun, Jilin, 130021, China
| | - Hongyan Xu
- Department of Oncology, Jilin Second People's Hospital, Jilin, 132011, Jilin, China
| | - Jun Ma
- Department of Radiotherapy, The Affiliated Hospital of Beihua University, Jilin, 132011, Jilin, China
| | - Feihai Liang
- Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, 530007, Guangxi, China
| | - Qingxu Zou
- Department of Thoracic Surgery, China-Japan Union Hospital of Jilin University, No. 126 freedom Avenue, Changchun, Jilin, 130031, China
| | - Fengwu Lin
- Department of Thoracic Surgery, China-Japan Union Hospital of Jilin University, No. 126 freedom Avenue, Changchun, Jilin, 130031, China.
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Wu Y, Pan S, Leng J, Xie T, Jamal M, Yin Q, Li J, He C, Dong X, Shao L, Zhang Q. The prognostic value of matrix metalloproteinase-7 and matrix metalloproteinase-15 in acute myeloid leukemia. J Cell Biochem 2019; 120:10613-10624. [PMID: 30809850 DOI: 10.1002/jcb.28351] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 12/06/2018] [Indexed: 12/14/2022]
Abstract
Matrix metalloproteinases (MMPs), a family of zinc-dependent endopeptidases, are involved in a variety of physiological and pathological processes. We analyzed 11 data sets from Gene Expression Omnibus Database and found that MMP7 and MMP15 were highly expressed in multiple carcinomas. GSE13204 showed that MMP7 and MMP15 were overexpressed in acute myeloid leukemia (AML) patients. The Cancer Genome Atlas data set exhibited that high expression of MMP7 or MMP15 in bone marrow (BM) of AML patients predicted poor overall survival. The χ 2 test results indicated that high expression level of MMP7 and MMP15 were correlated with high-risk stratification and high BM blast cell percentage in AML patients. To confirm these findings, we performed reverse-transcription quantitative polymerase chain reaction (RT-qPCR) and found that MMP7 and MMP15 were highly expressed in three AML cell lines. Further study showed that MMP7 and MMP15 were highly expressed both in BM and peripheral blood in collected AML samples compared with healthy individuals. Additionally, long noncoding RNA (lncRNA) microarray of BM samples of AML patients revealed that multiple lncRNAs were correlated with MMP7 and MMP15, suggesting that lncRNAs might be involved in the pathogenesis of AML via modulating MMPs. In conclusion, our study uncovers the potential roles of MMP7 and MMP15 in the prognosis of AML.
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Affiliation(s)
- Yingjie Wu
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Shan Pan
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Jun Leng
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Tian Xie
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Muhammad Jamal
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Qian Yin
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Jingyuan Li
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Chunjiang He
- Department of Genetics, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Xin Dong
- Department of Genetics, School of Basic Medical Science, Wuhan University, Wuhan, China
| | - Liang Shao
- Department of Hematology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Qiuping Zhang
- Department of Immunology, School of Basic Medical Science, Wuhan University, Wuhan, China.,Hubei Provincial Key Laboratory of Developmentally Originated Disease, Wuhan University, Wuhan, China
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11
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Gaggero S, Bruschi M, Petretto A, Parodi M, Del Zotto G, Lavarello C, Prato C, Santucci L, Barbuto A, Bottino C, Candiano G, Moretta A, Vitale M, Moretta L, Cantoni C. Nidogen-1 is a novel extracellular ligand for the NKp44 activating receptor. Oncoimmunology 2018; 7:e1470730. [PMID: 30228939 PMCID: PMC6140582 DOI: 10.1080/2162402x.2018.1470730] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 04/09/2018] [Accepted: 04/25/2018] [Indexed: 11/25/2022] Open
Abstract
The release of soluble ligands of activating Natural Killer (NK) cell receptors may represent a regulatory mechanism of NK cell function both in physiologic and in pathologic conditions. Here, we identified the extracellular matrix protein Nidogen-1 (NID1) as a ligand of NKp44, an important activating receptor expressed by activated NK cells. When released as soluble molecule, NID1 regulates NK cell function by modulating NKp44-induced IFN-γ production or cytotoxicity. In particular, it also modulates IFN-γ production induced by Platelet-Derived Growth Factor (PDGF)-DD following NKp44 engagement. We also show that NID1 may be present at the cell surface. In this form or when bound to a solid support (bNID1), NID1 fails to induce NK cell cytotoxicity or cytokine release. However, analysis by mass spectrometry revealed that exposure to bNID1 can induce in human NK cells relevant changes in the proteomic profiles suggesting an effect on different biological processes.
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Affiliation(s)
- Silvia Gaggero
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Maurizio Bruschi
- Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Andrea Petretto
- Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Monica Parodi
- UOC Immunologia, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Genny Del Zotto
- Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Chiara Lavarello
- Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Carola Prato
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
| | - Laura Santucci
- Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Alessandra Barbuto
- Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Cristina Bottino
- Department of Experimental Medicine, University of Genoa, Genoa, Italy.,Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Giovanni Candiano
- Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Alessandro Moretta
- Department of Experimental Medicine, University of Genoa, Genoa, Italy.,Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - Massimo Vitale
- UOC Immunologia, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Lorenzo Moretta
- Immunology area, IRCCS Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Claudia Cantoni
- Department of Experimental Medicine, University of Genoa, Genoa, Italy.,Dipartimento dei Laboratori di Ricerca, IRCCS Istituto Giannina Gaslini, Genoa, Italy.,Center of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
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12
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Alečković M, Wei Y, LeRoy G, Sidoli S, Liu DD, Garcia BA, Kang Y. Identification of Nidogen 1 as a lung metastasis protein through secretome analysis. Genes Dev 2017; 31:1439-1455. [PMID: 28827399 PMCID: PMC5588926 DOI: 10.1101/gad.301937.117] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 07/31/2017] [Indexed: 11/24/2022]
Abstract
Secreted proteins play crucial roles in mediating tumor-stroma interactions during metastasis of cancer to different target organs. To comprehensively profile secreted proteins involved in lung metastasis, we applied quantitative mass spectrometry-based proteomics and identified 392 breast cancer-derived and 302 melanoma-derived proteins secreted from highly lung metastatic cells. The cancer-specific lung metastasis secretome signatures (LMSSs) displayed significant prognostic value in multiple cancer clinical data sets. Moreover, we observed a significant overlap of enriched pathways between the LMSSs of breast cancer and melanoma despite an overall small overlap of specific proteins, suggesting that common biological processes are executed by different proteins to enable the two cancer types to metastasize to the lung. Among the novel candidate lung metastasis proteins, Nidogen 1 (NID1) was confirmed to promote lung metastasis of breast cancer and melanoma, and its expression is correlated with poor clinical outcomes. In vitro functional analysis further revealed multiple prometastatic functions of NID1, including enhancing cancer cell migration and invasion, promoting adhesion to the endothelium and disrupting its integrity, and improving vascular tube formation capacity. As a secreted prometastatic protein, NID1 may be developed as a new biomarker for disease progression and therapeutic target in breast cancer and melanoma.
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Affiliation(s)
- Maša Alečković
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Yong Wei
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Gary LeRoy
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Simone Sidoli
- Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Daniel D Liu
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
| | - Benjamin A Garcia
- Epigenetics Program, Department of Biochemistry and Biophysics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, USA
| | - Yibin Kang
- Department of Molecular Biology, Princeton University, Princeton, New Jersey 08544, USA
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13
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Zhou Y, Zhu Y, Fan X, Zhang C, Wang Y, Zhang L, Zhang H, Wen T, Zhang K, Huo X, Jiang X, Bu Y, Zhang Y. NID1, a new regulator of EMT required for metastasis and chemoresistance of ovarian cancer cells. Oncotarget 2017; 8:33110-33121. [PMID: 28416770 PMCID: PMC5464854 DOI: 10.18632/oncotarget.16145] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 02/08/2017] [Indexed: 12/13/2022] Open
Abstract
Nidogen-1 (NID1) has been identified as a novel candidate diagnostic biomarker of ovarian cancer in our previous study. Nevertheless, the role of NID1 in the pathogenesis of ovarian cancer is unclear. In the present study, we demonstrated that NID1 was a mesenchymal associated gene and its high expression was significantly correlated with shorter overall survival of ovarian cancer patients. The ectopic expression of NID1 in OVCAR-3 cells revealed a epithelial-mesenchymal transition (EMT) phenotype accompanied by enhancement of motility, invasiveness and cisplatin resistance, whereas the knockdown of NID1 was sufficient to convert HEY cells into epithelial phenotype with decreased capability of motility, invasiveness and cisplatin resistance. Mechanistic studies disclosed that NID1 activated ERK/MAPK signaling pathway to promote EMT. Collectively, our findings have uncovered the molecular mechanisms of NID1 in promoting ovarian cancer metastasis and chemoresistance, and provide a rationale for the therapeutic potential of NID1 suppression in ovarian cancer.
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Affiliation(s)
- Ya Zhou
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Yuanyuan Zhu
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Xiaoyan Fan
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Chundong Zhang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Yitao Wang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Lian Zhang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Huan Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Tao Wen
- First Clinical College, Chongqing Medical University, Chongqing 400016, China
| | - Kaina Zhang
- College of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Xiao Huo
- College of Biomedical Engineering, Chongqing Medical University, Chongqing 400016, China
| | - Xue Jiang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Youquan Bu
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
| | - Ying Zhang
- Department of Biochemistry and Molecular Biology, Chongqing Medical University, Chongqing 400016, China
- Molecular Medicine and Cancer Research Center, Chongqing Medical University, Chongqing 400016, China
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14
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Unraveling the podocyte injury in lupus nephritis: Clinical and experimental approaches. Semin Arthritis Rheum 2017; 46:632-641. [DOI: 10.1016/j.semarthrit.2016.10.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 10/08/2016] [Accepted: 10/10/2016] [Indexed: 12/15/2022]
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15
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Alfano M, Canducci F, Nebuloni M, Clementi M, Montorsi F, Salonia A. The interplay of extracellular matrix and microbiome in urothelial bladder cancer. Nat Rev Urol 2016; 13:77-90. [PMID: 26666363 PMCID: PMC7097604 DOI: 10.1038/nrurol.2015.292] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Many pathological changes in solid tumours are caused by the accumulation of genetic mutations and epigenetic molecular alterations. In addition, tumour progression is profoundly influenced by the environment surrounding the transformed cells. The interplay between tumour cells and their microenvironment has been recognized as one of the key determinants of cancer development and is being extensively investigated. Data suggest that both the extracellular matrix and the microbiota represent microenvironments that contribute to the onset and progression of tumours. Through the introduction of omics technologies and pyrosequencing analyses, a detailed investigation of these two microenvironments is now possible. In urological research, assessment of their dysregulation has become increasingly important to provide diagnostic, prognostic and predictive biomarkers for urothelial bladder cancer. Understanding the roles of the extracellular matrix and microbiota, two key components of the urothelial mucosa, in the sequelae of pathogenic events that occur in the development and progression of urothelial carcinomas will be important to overcome the shortcomings in current bladder cancer treatment strategies.
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Affiliation(s)
- Massimo Alfano
- Division of Experimental Oncology/Unit of Urology, URI, IRCCS Ospedale San Raffaele, Via Olgettina 60, 20132 Milan Italy
| | - Filippo Canducci
- Department of Biotechnology and Life Sciences, Università degli Studi dell'Insubria, Via Dunant 3, 21100 Varese Italy
| | - Manuela Nebuloni
- Department of Clinical Sciences, Pathology Unit, L. Sacco Hospital, Università degli Studi di Milano, Via Giovanni Battista Grassi 74, 20157 Milan Italy
| | - Massimo Clementi
- Università Vita-Salute San Raffaele, Via Olgettina 60, 20132 Milan Italy
| | - Francesco Montorsi
- Università Vita-Salute San Raffaele, Via Olgettina 60, 20132 Milan Italy
| | - Andrea Salonia
- Università Vita-Salute San Raffaele, Via Olgettina 60, 20132 Milan Italy
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16
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Grefte S, Adjobo-Hermans M, Versteeg E, Koopman W, Daamen W. Impaired primary mouse myotube formation on crosslinked type I collagen films is enhanced by laminin and entactin. Acta Biomater 2016; 30:265-276. [PMID: 26555376 DOI: 10.1016/j.actbio.2015.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 10/16/2015] [Accepted: 11/06/2015] [Indexed: 02/05/2023]
Abstract
In skeletal muscle, the stem cell niche is important for controlling the quiescent, proliferation and differentiation states of satellite cells, which are key for skeletal muscle regeneration after wounding. It has been shown that type I collagen, often used as 3D-scaffolds for regenerative medicine purposes, impairs myoblast differentiation. This is most likely due to the absence of specific extracellular matrix proteins providing attachment sites for myoblasts and/or myotubes. In this study we investigated the differentiation capacity of primary murine myoblasts on type I collagen films either untreated or modified with elastin, laminin, type IV collagen, laminin/entactin complex, combinations thereof, and Matrigel as a positive control. Additionally, increased reactive oxygen species (ROS) and ROCK signaling might also be involved. To measure ROS levels with live-cell microscopy, fibronectin-coated glass coverslips were additionally coated with type I collagen and Matrigel onto which myoblasts were differentiated. On type I collagen-coated coverslips, myotube formation was impaired while ROS levels were increased. However, anti-oxidant treatment did not enhance myotube formation. ROCK inhibition, which generally improve cellular attachment to uncoated surfaces or type I collagen, enhanced myoblast attachment to type I collagen-coated coverslips and -films, but slightly enhanced myotube formation. Only modification of type I collagen films by Matrigel and a combination of laminin/entactin significantly improved myotube formation. Our results indicate that type I collagen scaffolds can be modified by satellite cell niche factors of which specifically laminin and entactin enhanced myotube formation. This offers a promising approach for regenerative medicine purposes to heal skeletal muscle wounds. STATEMENT OF SIGNIFICANCE In this manuscript we show for the first time that impaired myotube formation on type I collagen scaffolds can be completely restored by modification with laminin and entactin, two extracellular proteins from the satellite cell niche. This offers a promising approach for regenerative medicine approaches to heal skeletal muscle wounds.
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17
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Herzog C, Marisiddaiah R, Haun RS, Kaushal GP. Basement membrane protein nidogen-1 is a target of meprin β in cisplatin nephrotoxicity. Toxicol Lett 2015; 236:110-6. [PMID: 25957482 DOI: 10.1016/j.toxlet.2015.05.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Revised: 04/18/2015] [Accepted: 05/05/2015] [Indexed: 01/08/2023]
Abstract
Meprins are oligomeric metalloproteinases that are abundantly expressed in the brush-border membranes of renal proximal tubules. During acute kidney injury (AKI) induced by cisplatin or ischemia-reperfusion, membrane-bound meprins are shed and their localization is altered from the apical membranes toward the basolateral surface of the proximal tubules. Meprins are capable of cleaving basement membrane proteins in vitro, however, it is not known whether meprins are able to degrade extracellular matrix proteins under pathophysiological conditions in vivo. The present study demonstrates that a basement membrane protein, nidogen-1, is cleaved and excreted in the urine of mice subjected to cisplatin-induced nephrotoxicity, a model of AKI. Cleaved nidogen-1 was not detected in the urine of untreated mice, but during the progression of cisplatin nephrotoxicity, the excretion of cleaved nidogen-1 increased in a time-dependent manner. The meprin inhibitor actinonin markedly prevented urinary excretion of the cleaved nidogen-1. In addition, meprin β-deficient mice, but not meprin α-deficient mice, subjected to cisplatin nephrotoxicity significantly suppressed excretion of cleaved nidogen-1, further suggesting that meprin β is involved in the cleavage of nidogen-1. These studies provide strong evidence for a pathophysiological link between meprin β and urinary excretion of cleaved nidogen-1 during cisplatin-induced AKI.
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Affiliation(s)
- Christian Herzog
- Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA; University of Arkansas for Medical Sciences, Department of Internal Medicine, Little Rock, AR 72205, USA
| | - Raju Marisiddaiah
- Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA; University of Arkansas for Medical Sciences, Department of Internal Medicine, Little Rock, AR 72205, USA
| | - Randy S Haun
- Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA; University of Arkansas for Medical Sciences, Department of Pharmaceutical Sciences, Little Rock, AR 72205, USA
| | - Gur P Kaushal
- Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA; University of Arkansas for Medical Sciences, Department of Internal Medicine, Little Rock, AR 72205, USA; University of Arkansas for Medical Sciences, Department of Biochemistry, Little Rock, AR 72205, USA.
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18
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Ren Y, Hao P, Law SKA, Sze SK. Hypoxia-induced changes to integrin α 3 glycosylation facilitate invasion in epidermoid carcinoma cell line A431. Mol Cell Proteomics 2014; 13:3126-37. [PMID: 25078904 DOI: 10.1074/mcp.m114.038505] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Hypoxia is a critical microenvironmental factor that drives cancer progression through angiogenesis and metastasis. Glycoproteins, especially those on the plasma membrane, orchestrate this process; however, questions remain regarding hypoxia-perturbed protein glycosylation in cancer cells. We focused on the effects of hypoxia on the integrin family of glycoproteins, which are central to the cellular processes of attachment and migration and have been linked with cancer in humans. We employed electrostatic repulsion hydrophilic interaction chromatography coupled with iTRAQ labeling and LC-MS/MS to identify and quantify glycoproteins expressed in A431. The results revealed that independent of the protein-level change, N-glycosylation modifications of integrin α 3 (ITGA3) were inhibited by hypoxia, unlike in other integrin subunits. A combination of Western blot, flow cytometry, and cell staining assays showed that hypoxia-induced alterations to the glycosylation of ITGA3 prevented its efficient translocation to the plasma membrane. Mutagenesis studies demonstrated that simultaneous mutation of glycosites 6 and 7 of ITGA3 prevented its accumulation at the K562 cell surface, which blocked integrin α 3 and β 1 heterodimer formation and thus abolished ITGA3's interaction with extracellular ligands. By generating A431 cells stably expressing ITGA3 mutated at glycosites 6 and 7, we showed that lower levels of ITGA3 on the cell surface, as induced by hypoxia, conferred an increased invasive ability to cancer cells in vitro under hypoxic conditions. Taken together, these results revealed that ITGA3 translocation to the plasma membrane suppressed by hypoxia through inhibition of glycosylation facilitated cell invasion in A431.
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Affiliation(s)
- Yan Ren
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551, Singapore
| | - Piliang Hao
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551, Singapore
| | - S K Alex Law
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551, Singapore
| | - Siu Kwan Sze
- From the ‡School of Biological Sciences, Nanyang Technological University, 60 Nanyang Dr., Singapore 637551, Singapore.
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19
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Structural elucidation of full-length nidogen and the laminin-nidogen complex in solution. Matrix Biol 2013; 33:60-7. [PMID: 23948589 DOI: 10.1016/j.matbio.2013.07.009] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 07/30/2013] [Indexed: 11/21/2022]
Abstract
Nidogen-1 is a key basement membrane protein that is required for many biological activities. It is one of the central elements in organizing basal laminae including those in the skin, muscle, and the nervous system. The self-assembling extracellular matrix that also incorporates fibulins, fibronectin and integrins is clamped together by networks formed between nidogen, perlecan, laminin and collagen IV. To date, the full-length version of nidogen-1 has not been studied in detail in terms of its solution conformation and shape because of its susceptibility to proteolysis. In the current study, we have expressed and purified full-length nidogen-1 and have investigated its solution behavior using size-exclusion chromatography (SEC), dynamic light scattering (DLS) and small angle X-ray scattering (SAXS). The ab initio shape reconstruction of the complex between nidogen-1 and the laminin γ-1 short arm confirms that the interaction is mediated solely by the C-terminal domains: the rest of the domains of both proteins do not participate in complex formation.
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20
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Chen N, Debnath J. IκB kinase complex (IKK) triggers detachment-induced autophagy in mammary epithelial cells independently of the PI3K-AKT-MTORC1 pathway. Autophagy 2013; 9:1214-27. [PMID: 23778976 DOI: 10.4161/auto.24870] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Adherent cells require proper integrin-mediated extracellular matrix (ECM) engagement for growth and survival; normal cells deprived of proper ECM contact undergo anoikis. At the same time, autophagy is induced as a survival pathway in both fibroblasts and epithelial cells upon ECM detachment. Here, we further define the intracellular signals that mediate detachment-induced autophagy and uncover an important role for the IκB kinase (IKK) complex in the induction of autophagy in mammary epithelial cells (MECs) deprived of ECM contact. Whereas the PI3K-AKT-MTORC1 pathway activation potently inhibits autophagy in ECM-detached fibroblasts, enforced activation of this pathway is not sufficient to suppress detachment-induced autophagy in MECs. Instead, inhibition of IKK, as well as its upstream regulator, MAP3K7/TAK1, significantly attenuates detachment-induced autophagy in MECs. Furthermore, function-blocking experiments corroborate that both IKK activation and autophagy induction result from decreased ITGA3-ITGB1 (α3β1 integrin) function. Finally, we demonstrate that pharmacological IKK inhibition enhances anoikis and accelerates luminal apoptosis during acinar morphogenesis in three-dimensional culture. Based on these results, we propose that the IKK complex functions as a key mediator of detachment-induced autophagy and anoikis resistance in epithelial cells.
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Affiliation(s)
- Nan Chen
- Department of Pathology and Helen Diller Family Comprehensive Cancer Center; University of California, San Francisco; San Francisco, CA USA
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21
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Breitkreutz D, Koxholt I, Thiemann K, Nischt R. Skin basement membrane: the foundation of epidermal integrity--BM functions and diverse roles of bridging molecules nidogen and perlecan. BIOMED RESEARCH INTERNATIONAL 2013; 2013:179784. [PMID: 23586018 PMCID: PMC3618921 DOI: 10.1155/2013/179784] [Citation(s) in RCA: 119] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Revised: 01/18/2013] [Accepted: 01/28/2013] [Indexed: 02/06/2023]
Abstract
The epidermis functions in skin as first defense line or barrier against environmental impacts, resting on extracellular matrix (ECM) of the dermis underneath. Both compartments are connected by the basement membrane (BM), composed of a set of distinct glycoproteins and proteoglycans. Herein we are reviewing molecular aspects of BM structure, composition, and function regarding not only (i) the dermoepidermal interface but also (ii) the resident microvasculature, primarily focusing on the per se nonscaffold forming components perlecan and nidogen-1 and nidogen-2. Depletion or functional deficiencies of any BM component are lethal at some stage of development or around birth, though BM defects vary between organs and tissues. Lethality problems were overcome by developmental stage- and skin-specific gene targeting or by cell grafting and organotypic (3D) cocultures of normal or defective cells, which allows recapitulating BM formation de novo. Thus, evidence is accumulating that BM assembly and turnover rely on mechanical properties and composition of the adjacent ECM and the dynamics of molecular assembly, including further "minor" local components, nidogens largely functioning as catalysts or molecular adaptors and perlecan as bridging stabilizer. Collectively, orchestration of BM assembly, remodeling, and the role of individual players herein are determined by the developmental, tissue-specific, or functional context.
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Affiliation(s)
- Dirk Breitkreutz
- Department of Dermatology, University of Cologne, Kerpener Strasse 62, 50937 Cologne, Germany.
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22
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Urbano JM, Domínguez-Giménez P, Estrada B, Martín-Bermudo MD. PS integrins and laminins: key regulators of cell migration during Drosophila embryogenesis. PLoS One 2011; 6:e23893. [PMID: 21949686 PMCID: PMC3174947 DOI: 10.1371/journal.pone.0023893] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Accepted: 07/27/2011] [Indexed: 01/16/2023] Open
Abstract
During embryonic development, there are numerous cases where organ or tissue formation depends upon the migration of primordial cells. In the Drosophila embryo, the visceral mesoderm (vm) acts as a substrate for the migration of several cell populations of epithelial origin, including the endoderm, the trachea and the salivary glands. These migratory processes require both integrins and laminins. The current model is that αPS1βPS (PS1) and/or αPS3βPS (PS3) integrins are required in migrating cells, whereas αPS2βPS (PS2) integrin is required in the vm, where it performs an as yet unidentified function. Here, we show that PS1 integrins are also required for the migration over the vm of cells of mesodermal origin, the caudal visceral mesoderm (CVM). These results support a model in which PS1 might have evolved to acquire the migratory function of integrins, irrespective of the origin of the tissue. This integrin function is highly specific and its specificity resides mainly in the extracellular domain. In addition, we have identified the Laminin α1,2 trimer, as the key extracellular matrix (ECM) component regulating CVM migration. Furthermore, we show that, as it is the case in vertebrates, integrins, and specifically PS2, contributes to CVM movement by participating in the correct assembly of the ECM that serves as tracks for migration.
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Affiliation(s)
- Jose M. Urbano
- Centro Andaluz de Biología del Desarrollo, (CSIC)-Universidad Pablo de Olavide, Sevilla, Spain
| | - Paloma Domínguez-Giménez
- Centro Andaluz de Biología Molecular y Medicina Regenerativa, (CSIC)-Universidad de Sevilla, Sevilla, Spain
| | - Beatriz Estrada
- Centro Andaluz de Biología del Desarrollo, (CSIC)-Universidad Pablo de Olavide, Sevilla, Spain
| | - María D. Martín-Bermudo
- Centro Andaluz de Biología del Desarrollo, (CSIC)-Universidad Pablo de Olavide, Sevilla, Spain
- * E-mail:
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Cheng JYC, Raghunath M, Whitelock J, Poole-Warren L. Matrix components and scaffolds for sustained islet function. TISSUE ENGINEERING PART B-REVIEWS 2011; 17:235-47. [PMID: 21476869 DOI: 10.1089/ten.teb.2011.0004] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The clinical treatment of diabetes by islet transplantation is limited by low islet survival rates. A fundamental reason for this inefficiency is likely due to the removal of islets from their native environment. The isolation process not only disrupts interactions between blood vessels and endocrine cells, but also dramatically changes islet cell interaction with the extracellular matrix (ECM). Biomolecular cues from the ECM are important for islet survival, proliferation, and function; however, very little is known about the composition of islet ECM and the role each component plays. Without a thorough understanding of islet ECM, current endeavors to prolong islet survival via scaffold engineering lack a systematic basis. The following article reviews current knowledge of islet ECM and attempts to explain the roles they play in islet function. In addition, the effects of in vitro simulations of the native islet scaffold will be evaluated. Greater understanding in these areas will provide a preliminary platform from which a sustainable bioartificial pancreas may be developed.
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Affiliation(s)
- Jennifer Y C Cheng
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, Australia.
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Awad AS, Rouse MD, Khutsishvili K, Huang L, Bolton WK, Lynch KR, Okusa MD. Chronic sphingosine 1-phosphate 1 receptor activation attenuates early-stage diabetic nephropathy independent of lymphocytes. Kidney Int 2011; 79:1090-8. [PMID: 21289599 DOI: 10.1038/ki.2010.544] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Sphingosine 1-phosphate (S1P), a pleiotropic lipid mediator, binds to five related G-protein-coupled receptors to exert its effects. As S1P1 receptor (S1P1R) activation blocks kidney inflammation in acute renal injury, we tested whether activation of S1P1Rs ameliorates renal injury in early-stage diabetic nephropathy (DN) in rats. Urinary albumin excretion increased in vehicle-treated diabetic rats (single injection of streptozotocin), compared with controls, and was associated with tubule injury and increased urinary tumor necrosis factor-α (TNF-α) at 9 weeks. These effects were significantly reduced by FTY720, a non-selective, or SEW2871, a selective S1P1R agonist. Interestingly, only FTY720 was associated with reduced total lymphocyte levels. Albuminuria was reduced by SEW2871 in both Rag-1 (T- and B-cell deficient) and wild-type diabetic mice after 6 weeks, suggesting that the effect was independent of lymphocytes. Another receptor, S1P3R, did not contribute to the FTY720-mediated protection, as albuminuria was also reduced in diabetic S1P3R knockout mice. Further, both agonists restored WT-1 staining along with podocin and nephrin mRNA expression, suggesting podocyte protection. This was corroborated in vitro, as SEW2871 reduced TNF-α and vascular endothelial growth factor mRNA expression in immortalized podocytes grown in media containing high glucose. Whether targeting kidney S1P1Rs will be a useful therapeutic measure in DN will need direct testing.
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Affiliation(s)
- Alaa S Awad
- Department of Medicine, University of Virginia, Charlottesville, Virginia, USA
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Kruegel J, Miosge N. Basement membrane components are key players in specialized extracellular matrices. Cell Mol Life Sci 2010; 67:2879-95. [PMID: 20428923 PMCID: PMC2921489 DOI: 10.1007/s00018-010-0367-x] [Citation(s) in RCA: 164] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 03/17/2010] [Accepted: 03/24/2010] [Indexed: 01/11/2023]
Abstract
More than three decades ago, basement membranes (BMs) were described as membrane-like structures capable of isolating a cell from and connecting a cell to its environment. Since this time, it has been revealed that BMs are specialized extracellular matrices (sECMs) with unique components that support important functions including differentiation, proliferation, migration, and chemotaxis of cells during development. The composition of these sECM is as unique as the tissues to which they are localized, opening the possibility that such matrices can fulfill distinct functions. Changes in BM composition play significant roles in facilitating the development of various diseases. Furthermore, tissues have to provide sECM for their stem cells during development and for their adult life. Here, we briefly review the latest research on these unique sECM and their components with a special emphasis on embryonic and adult stem cells and their niches.
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Affiliation(s)
- Jenny Kruegel
- Tissue Regeneration Work Group, Department of Prosthodontics, Georg August University, Robert-Koch-Str. 40, 37075 Göttingen, Germany
| | - Nicolai Miosge
- Tissue Regeneration Work Group, Department of Prosthodontics, Georg August University, Robert-Koch-Str. 40, 37075 Göttingen, Germany
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Baranowsky A, Mokkapati S, Bechtel M, Krügel J, Miosge N, Wickenhauser C, Smyth N, Nischt R. Impaired wound healing in mice lacking the basement membrane protein nidogen 1. Matrix Biol 2010; 29:15-21. [DOI: 10.1016/j.matbio.2009.09.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2009] [Revised: 09/07/2009] [Accepted: 09/10/2009] [Indexed: 10/20/2022]
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Nidogen-2: a new serum biomarker for ovarian cancer. Clin Biochem 2009; 43:355-61. [PMID: 19883638 DOI: 10.1016/j.clinbiochem.2009.10.012] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Revised: 10/15/2009] [Accepted: 10/17/2009] [Indexed: 11/20/2022]
Abstract
OBJECTIVES New ovarian cancer biomarkers suitable for early disease diagnosis, prognosis or monitoring could improve patient management and outcomes. DESIGN AND METHODS Nidogen-2 was measured by immunoassay in serum of 100 healthy women, 100 women with benign gynecological conditions and 100 women with ovarian carcinoma. RESULTS Serum nidogen-2 concentration between normal and benign disease patients was not different (median, 13.2 and 12.1 mg/L, respectively). However, nidogen-2 concentration in serum of ovarian cancer patients was elevated (median, 18.6 mg/L; p<0.0001). Both nidogen-2 and CA125 were elevated more in serous histotypes of ovarian cancer and late state disease. Nidogen-2 and CA125 concentrations were strongly correlated. ROC curve analysis for nidogen-2 had an area under the curve (AUC) ranging from 0.73 to 0.83 but CA125 was superior (AUC ranging from 0.87 to 0.99). There was no complementarity between the two markers. CONCLUSIONS Nidogen-2 is a new biomarker for ovarian cancer which correlates closely with CA125.
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Yao N, Xiao W, Meza L, Tseng H, Chuck M, Lam KS. Structure −Activity Relationship Studies of Targeting Ligands against Breast Cancer Cells. J Med Chem 2009; 52:6744-51. [DOI: 10.1021/jm9012032] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nianhuan Yao
- Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California Davis, 4501 X Street, Sacramento, California 95817
| | - Wenwu Xiao
- Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California Davis, 4501 X Street, Sacramento, California 95817
| | - Leah Meza
- Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California Davis, 4501 X Street, Sacramento, California 95817
| | - Harry Tseng
- Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California Davis, 4501 X Street, Sacramento, California 95817
| | - Mathida Chuck
- Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California Davis, 4501 X Street, Sacramento, California 95817
| | - Kit S. Lam
- Division of Hematology and Oncology, Department of Internal Medicine, UC Davis Cancer Center, University of California Davis, 4501 X Street, Sacramento, California 95817
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Evseenko D, Schenke-Layland K, Dravid G, Zhu Y, Hao QL, Scholes J, Wang XC, MacLellan WR, Crooks GM. Identification of the Critical Extracellular Matrix Proteins that Promote Human Embryonic Stem Cell Assembly. Stem Cells Dev 2009; 18:919-28. [DOI: 10.1089/scd.2008.0293] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Affiliation(s)
- Denis Evseenko
- Division of Research Immunology and Bone Marrow Transplantation, Childrens Hospital of Los Angeles, Los Angeles, California
| | - Katja Schenke-Layland
- Cardiovascular Research Laboratory, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Gautam Dravid
- Division of Research Immunology and Bone Marrow Transplantation, Childrens Hospital of Los Angeles, Los Angeles, California
| | - Yuhua Zhu
- Division of Research Immunology and Bone Marrow Transplantation, Childrens Hospital of Los Angeles, Los Angeles, California
| | - Qian-Lin Hao
- Division of Research Immunology and Bone Marrow Transplantation, Childrens Hospital of Los Angeles, Los Angeles, California
| | - Jessica Scholes
- Division of Research Immunology and Bone Marrow Transplantation, Childrens Hospital of Los Angeles, Los Angeles, California
| | - Xing Chao Wang
- Division of Research Immunology and Bone Marrow Transplantation, Childrens Hospital of Los Angeles, Los Angeles, California
| | - W. Robb MacLellan
- Cardiovascular Research Laboratory, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
| | - Gay M. Crooks
- Division of Research Immunology and Bone Marrow Transplantation, Childrens Hospital of Los Angeles, Los Angeles, California
- Current affiliation: Division of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, California
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Ho MSP, Böse K, Mokkapati S, Nischt R, Smyth N. Nidogens-Extracellular matrix linker molecules. Microsc Res Tech 2008; 71:387-95. [PMID: 18219668 DOI: 10.1002/jemt.20567] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Nidogens/entactins are a family of highly conserved, sulfated glycoproteins. Biochemical studies have implicated them as having a major structural role in the basement membrane. However despite being ubiquitous components of this specialized extracellular matrix and having a wide spectrum of binding partners, genetic analysis has shown that they are not required for the overall architecture of the basement membrane. Rather in development they play an important role in its stabilization especially in tissues undergoing rapid growth or turnover. Nidogen breakdown has been implicated as a key event in the basement membrane degradation occurring in mammary gland involution. A number of studies, most compellingly those in C. elegans, demonstrated that nidogens may have other nonstructural roles and be involved in axonal pathfinding and synaptic transmission.
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Affiliation(s)
- Matthew S P Ho
- Center for Biochemistry and Center for Molecular Medicine, Medical Faculty, University of Cologne, D-50924 Cologne, Germany
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31
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Martinek N, Shahab J, Saathoff M, Ringuette M. Haemocyte-derived SPARC is required for collagen-IV-dependent stability of basal laminae in Drosophila embryos. J Cell Sci 2008; 121:1671-80. [DOI: 10.1242/jcs.021931] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
SPARC is an evolutionarily conserved collagen-binding extracellular matrix (ECM) glycoprotein whose morphogenetic contribution(s) to embryonic development remain elusive despite decades of research. We have therefore used Drosophila genetics to gain insight into the role of SPARC during embryogenesis. In Drosophila embryos, high levels of SPARC and other basal lamina components (such as network-forming collagen IV, laminin and perlecan) are synthesized and secreted by haemocytes, and assembled into basal laminae. A SPARC mutant was generated by P-element mutagenesis that is embryonic lethal because of multiple developmental defects. Whereas no differences in collagen IV immunostaining were observed in haemocytes between wild-type and SPARC-mutant embryos, collagen IV was not visible in basal laminae of SPARC-mutant embryos. In addition, the laminin network of SPARC-mutant embryos appeared fragmented and discontinuous by late embryogenesis. Transgenic expression of SPARC protein by haemocytes in SPARC-mutant embryos restored collagen IV and laminin continuity in basal laminae. However, transgenic expression of SPARC by neural cells failed to rescue collagen IV in basal laminae, indicating that the presence of collagen IV deposition requires SPARC expression by haemocytes. Our previous finding that haemocyte-derived SPARC protein levels are reduced in collagen-IV-mutant embryos and the observation that collagen-IV-mutant embryos showed a striking phenotypic similarity to SPARC-mutant embryos suggests a mutual dependence between these major basal laminae components during embryogenesis. Patterning defects and impaired condensation of the ventral nerve cord also resulted from the loss SPARC expression prior to haemocyte migration. Hence, SPARC is required for basal lamina maturation and condensation of the ventral nerve cord during Drosophila embryogenesis.
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Affiliation(s)
- Nathalie Martinek
- Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, Ontario, M5S 3G5, Canada
| | - Jaffer Shahab
- Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, Ontario, M5S 3G5, Canada
| | - Manuela Saathoff
- Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, Ontario, M5S 3G5, Canada
| | - Maurice Ringuette
- Department of Cell and Systems Biology, University of Toronto, 25 Harbord Street, Toronto, Ontario, M5S 3G5, Canada
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Kruegel J, Sadowski B, Miosge N. Nidogen-1 and nidogen-2 in healthy human cartilage and in late-stage osteoarthritis cartilage. ACTA ACUST UNITED AC 2008; 58:1422-32. [DOI: 10.1002/art.23480] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Awad AS, Rouse M, Liu L, Vergis AL, Rosin DL, Linden J, Sedor JR, Okusa MD. Activation of adenosine 2A receptors preserves structure and function of podocytes. J Am Soc Nephrol 2007; 19:59-68. [PMID: 18045850 DOI: 10.1681/asn.2007030276] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Adenosine 2A receptor (A(2A)R) activation was recently shown to be renoprotective in diabetic nephropathy. A(2A)R are found in glomeruli and have been shown to associate with the podocyte cytoskeletal protein alpha-actinin-4, but the effect of their activation on podocyte structure and function is unknown. Podocyte injury was induced in C57BL/6 mice with puromycin aminonucleoside, and the selective A(2A)R agonist ATL313 was found to attenuate the resulting albuminuria and foot process fusion. The selective A(2A)R antagonist ZM241385 reversed the effects of ATL313. In vitro, A(2A)R mRNA and protein were expressed in a conditionally immortalized podocyte cell line, and A(2A)R-like immunoreactivity co-localized with the actin cytoskeleton. Treatment with ATL313 also blocked the increased podocyte permeability to albumin and disruption of the actin cytoskeleton that accompanied puromycin aminonucleoside-induced injury in vitro. ATL313 was ineffective, however, in the presence of the A(2A)R antagonist and in A(2A)R-deficient podocytes. It was concluded that A(2A)R activation reduces glomerular proteinuria, at least in part, by preserving the normal structure of podocyte foot processes, slit diaphragms, and actin cytoskeleton.
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Affiliation(s)
- Alaa S Awad
- Division of Nephrology, Box 133, University of Virginia Health System, Charlottesville, VA 22908, USA
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Behera A, Durand E, Cugini C, Antonara S, Bourassa L, Hildebrand E, Hu L, Coburn J. Borrelia burgdorferi BBB07 interaction with integrin alpha3beta1 stimulates production of pro-inflammatory mediators in primary human chondrocytes. Cell Microbiol 2007; 10:320-31. [PMID: 17822440 PMCID: PMC2586958 DOI: 10.1111/j.1462-5822.2007.01043.x] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Borrelia burgdorferi, the causative agent of Lyme disease, activates multiple signalling pathways leading to induction of pro-inflammatory mediators at sites of inflammation. Binding of B. burgdorferi to integrin alpha(3)beta(1) on human chondrocytes activates signalling leading to release of several pro-inflammatory mediators, but the B. burgdorferi protein that binds integrin alpha(3)beta(1) and elicits this response has remained unknown. A search of the B. burgdorferi genome for a canonical integrin binding motif, the RGD (Arg-Gly-Asp) tripeptide, revealed several candidate ligands for integrins. In this study we show that one of these candidates, BBB07, binds to integrin alpha(3)beta(1) and inhibits attachment of intact B. burgdorferi to the same integrin. BBB07 is expressed during murine infection as demonstrated by recognition by infected mouse sera. Recombinant purified BBB07 induces pro-inflammatory mediators in primary human chondrocyte cells by interaction with integrin alpha(3)beta(1). This interaction is specific, as P66, another integrin ligand of B. burgdorferi, does not activate signalling through alpha(3)beta(1). In summary, we have identified a B. burgdorferi protein, BBB07, that interacts with integrin alpha(3)beta(1) and stimulates production of pro-inflammatory mediators in primary human chondrocyte cells.
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Affiliation(s)
- Aruna Behera
- Division of Geographic Medicine and Infectious Diseases, Tufts-New England Medical Center, Boston, MA
| | - Enrique Durand
- Graduate Program in Molecular Microbiology, Tufts University Sackler School of Graduate Biomedical Sciences
| | - Carla Cugini
- Division of Geographic Medicine and Infectious Diseases, Tufts-New England Medical Center, Boston, MA
| | - Styliani Antonara
- Graduate Program in Molecular Microbiology, Tufts University Sackler School of Graduate Biomedical Sciences
| | - Lori Bourassa
- Graduate Program in Molecular Microbiology, Tufts University Sackler School of Graduate Biomedical Sciences
| | - Ethan Hildebrand
- Division of Geographic Medicine and Infectious Diseases, Tufts-New England Medical Center, Boston, MA
| | - Linden Hu
- Division of Geographic Medicine and Infectious Diseases, Tufts-New England Medical Center, Boston, MA
- Graduate Program in Molecular Microbiology, Tufts University Sackler School of Graduate Biomedical Sciences
- Graduate Program in Immunology, Tufts University Sackler School of Graduate Biomedical Sciences
| | - Jenifer Coburn
- Division of Geographic Medicine and Infectious Diseases, Tufts-New England Medical Center, Boston, MA
- Graduate Program in Molecular Microbiology, Tufts University Sackler School of Graduate Biomedical Sciences
- Graduate Program in Immunology, Tufts University Sackler School of Graduate Biomedical Sciences
- Corresponding author: Div. of GeoMed/ID, NEMC box 41, Tufts-New England Medical Center, 750 Washington St., Boston, MA 02111. , phone (517)636-5952, fax (617)636-3216
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Lee HK, Seo IA, Park HK, Park YM, Ahn KJ, Yoo YH, Park HT. Nidogen is a prosurvival and promigratory factor for adult Schwann cells. J Neurochem 2007; 102:686-98. [PMID: 17437540 DOI: 10.1111/j.1471-4159.2007.04580.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Schwann cells provide a favorable microenvironment for successful regeneration of the injured peripheral nerve. Even though the roles of extracellular matrix proteins in the Schwann cell physiology have long been studied, the precise function of nidogen, a ubiquitous component of the basal lamina, in Schwann cells is unknown. In this study, we show that the protein and mRNA messages for nidogens are up-regulated in the sciatic nerve after sciatic nerve transection. We demonstrate that recombinant nidogen-1 increased the process formation of Schwann cells cultured from adult rat sciatic nerves and that nidogen-1 prevented Schwann cells from serum-deprivation-induced death. In addition, nidogen-1 promoted spontaneous migration of Schwann cells in two-independent migration assays. The Schwann cell responses to the recombinant nidogen-1 were specific because the nidogen-binding ectodomain of tumor endothelial marker 7 inhibited the nidogen responses without affecting Schwann cell response to laminin. Finally, we found that beta1 subunit-containing integrins play a key role in the nidogen-induced process formation, survival, and migration of Schwann cells. Altogether, these results indicate that nidogen has a prosurvival and promigratory activity on Schwann cells in the peripheral nerve.
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Affiliation(s)
- Hyun Kyoung Lee
- Department of Physiology, Medical Science Research Institute, College of Medicine, Dong-A University, Busan, South Korea
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Ulazzi L, Sabbioni S, Miotto E, Veronese A, Angusti A, Gafà R, Manfredini S, Farinati F, Sasaki T, Lanza G, Negrini M. Nidogen 1 and 2 gene promoters are aberrantly methylated in human gastrointestinal cancer. Mol Cancer 2007; 6:17. [PMID: 17328794 PMCID: PMC1831485 DOI: 10.1186/1476-4598-6-17] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2007] [Accepted: 02/28/2007] [Indexed: 11/11/2022] Open
Abstract
Background Nidogens are highly conserved proteins of basement membranes. Two nidogen proteins, nidogen 1 and nidogen 2, are known in mammals. Results We show that CpG islands of both NID1 and NID2 genes are aberrantly methylated in human cancer samples and cancer cell lines. For both genes, methylation was correlated with loss of gene transcription in human cell lines. Furthermore, demethylation of the NID1 and NID2 promoters restored gene transcription, demonstrating that methylation was responsible for silencing nidogen genes. In primary tumors, we detected NID1 promoter methylation in 67% of colon cancer samples and in 90% of gastric cancers. NID2 promoter was methylated in 29% of colon and 95% of gastric cancers. Immuno-staining for nidogen-2 confirmed the correlation between aberrant methylation and loss of nidogen expression also in primary tumors, implying that aberrant methylation was a mechanism for inhibiting nidogens expression in human gastrointestinal tumors. Conclusion These results suggest that loss of nidogens expression has a potential pathogenetic role in colon and stomach tumorigenesis. Nidogens are believed to connect laminin and collagen IV networks, hence stabilizing the basement membrane structure. Nidogens are also important for cell adhesion, as they establish contacts with various cellular integrins. Loss of nidogen expression may favor invasion and metastasis of cancer cells by loosening cell interaction with basal membrane and by weakening the strength of the basement membrane itself, first barrier from the connective vascularized matrix.
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Affiliation(s)
- Linda Ulazzi
- Dipartimento di Medicina Sperimentale e Diagnostica e Centro Interdipartimentale per la Ricerca sul Cancro, Università di Ferrara, Ferrara, Italy
| | - Silvia Sabbioni
- Dipartimento di Medicina Sperimentale e Diagnostica e Centro Interdipartimentale per la Ricerca sul Cancro, Università di Ferrara, Ferrara, Italy
| | - Elena Miotto
- Dipartimento di Medicina Sperimentale e Diagnostica e Centro Interdipartimentale per la Ricerca sul Cancro, Università di Ferrara, Ferrara, Italy
| | - Angelo Veronese
- Dipartimento di Medicina Sperimentale e Diagnostica e Centro Interdipartimentale per la Ricerca sul Cancro, Università di Ferrara, Ferrara, Italy
| | - Angela Angusti
- Dipartimento di Scienze Farmaceutiche, Università di Ferrara, Italy
| | - Roberta Gafà
- Dipartimento di Medicina Sperimentale e Diagnostica e Centro Interdipartimentale per la Ricerca sul Cancro, Università di Ferrara, Ferrara, Italy
| | | | - Fabio Farinati
- Dipartimento di Scienze Chirurgiche e Gastroenterologia, Università di Padova, Italy
| | - Takako Sasaki
- Max-Planck-Institute for Biochemistry, Martinsried, Germany
| | - Giovanni Lanza
- Dipartimento di Medicina Sperimentale e Diagnostica e Centro Interdipartimentale per la Ricerca sul Cancro, Università di Ferrara, Ferrara, Italy
| | - Massimo Negrini
- Dipartimento di Medicina Sperimentale e Diagnostica e Centro Interdipartimentale per la Ricerca sul Cancro, Università di Ferrara, Ferrara, Italy
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Behera AK, Hildebrand E, Uematsu S, Akira S, Coburn J, Hu LT. Identification of a TLR-independent pathway for Borrelia burgdorferi-induced expression of matrix metalloproteinases and inflammatory mediators through binding to integrin alpha 3 beta 1. THE JOURNAL OF IMMUNOLOGY 2006; 177:657-64. [PMID: 16785564 DOI: 10.4049/jimmunol.177.1.657] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Borrelia burgdorferi stimulates a robust inflammatory response at sites of localization. Binding of borrelial lipoproteins to TLR-2 is one pathway important in the host response to B. burgdorferi. However, while TLR-2 is clearly important in control of infection, inflammation is actually worsened in the absence of TLR-2 or the shared TLR adapter molecule, MyD88, suggesting that there are alternative pathways regulating inflammation. Integrins are cell surface receptors that play an important role in cell to cell communications and that can activate inflammatory signaling pathways. In this study, we report for the first time that B. burgdorferi binds to integrin alpha(3)beta(1) and that binding of B. burgdorferi to this integrin results in induction of proinflammatory cytokines, chemokines, and end-effector molecules such as matrix metalloproteinases in primary human chondrocyte cells. Expression of these same molecules is not affected by the absence of MyD88 in murine articular cartilage, suggesting that the two pathways act independently in activating host inflammatory responses to B. burgdorferi. B. burgdorferi-induced alpha(3) signaling is mediated by JNK, but not p38 MAPK. In summary, we have identified a new host receptor for B. burgdorferi, integrin alpha(3)beta(1); binding of B. burgdorferi to integrin alpha(3)beta(1) results in the release of inflammatory mediators and is proposed as a TLR-independent pathway for activation of the innate immune response by the organism.
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Affiliation(s)
- Aruna K Behera
- Tufts-New England Medical Center, Tufts University School of Medicine, Tupper Research Institute, Division of Geographic Medicine and Infectious Diseases, Boston, MA 02111
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Awad AS, Huang L, Ye H, Duong ETA, Bolton WK, Linden J, Okusa MD. Adenosine A2A receptor activation attenuates inflammation and injury in diabetic nephropathy. Am J Physiol Renal Physiol 2005; 290:F828-37. [PMID: 16332931 DOI: 10.1152/ajprenal.00310.2005] [Citation(s) in RCA: 109] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
We previously demonstrated the anti-inflammatory effects and renal tissue protection in response to adenosine A(2A)-receptor (A(2A)R) activation in acute renal injury. We sought to extend these studies and determine the efficacy of A(2A)R agonists in a chronic model of renal injury. We hypothesized that A(2A) agonists mediate renal tissue protection in diabetic nephropathy by reducing glomerular inflammation. Diabetes was induced with single intravenous injection of streptozotocin in Sprague-Dawley rats (50 mg/kg). Increases in urinary albumin excretion (UAE) and plasma creatinine at week 6 in the diabetes group (26- and 6-fold over control, respectively) were markedly reduced by continuous subcutaneous administration of ATL146e (10 ng x kg(-1) x min(-1)), a selective A(2A) agonist. The increase in UAE in the diabetes group was associated with a significant reduction in the expression of slit diaphragm-associated molecules compared with control (nephrin; P < 0.05 and podocin; P < 0.005) that was reversed by ATL146e treatment. Diabetes led to an increase in urinary excretion of monocyte chemoattractant protein-1 (705% of control), TNF-alpha (1,586% of control), IFN-gamma (298% of control), kidney fibronectin mRNA (457% of control), and glomerular infiltration of macrophages (764% of control), effects significantly reduced by ATL146e treatment. Mesangial expansion and basement membrane thickness were reduced with ATL146e. To further confirm the selectivity of ATL146e, we used wild-type (WT) or A(2A)knockout (A(2A)-KO) mice. Four weeks after diabetes, UAE increased significantly in both WT and A(2A)-KO diabetic mice (3.0- and 3.3-fold over control). A(2A) agonist treatment blocked the increase in UAE in WT diabetic mice (P < 0.001), whereas it had no effect on the A(2A)-KO diabetic mice. These results demonstrate that chronic A(2A)R activation in diabetic rats 1) ameliorates histological and functional changes in kidneys induced by diabetes and 2) causes reduced inflammation associated with diabetic nephropathy.
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Affiliation(s)
- Alaa S Awad
- Department of Medicine, University of Virginia, Charlottesville, USA
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Mineur P, Guignandon A, Lambert CA, Amblard M, Lapière CM, Nusgens BV. RGDS and DGEA-induced [Ca2+]i signalling in human dermal fibroblasts. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2005; 1746:28-37. [PMID: 16199103 DOI: 10.1016/j.bbamcr.2005.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2004] [Revised: 07/18/2005] [Accepted: 07/19/2005] [Indexed: 01/14/2023]
Abstract
A pulse of short peptides, RGDS and DGEA in the millimolar range, immediately elicits in normal human fibroblasts a transient increase of intracellular Ca2+ ([Ca2+]i). In the present study, we show that this [Ca2+]i occurs in an increasing number of cells as a function of peptides concentration. It is specific of each peptide and inhibited at saturating concentration of the peptide in the culture medium. The [Ca2+]i transient depends on signalling pathways slightly different for DGEA and RGDS involving tyrosine kinase(s) and phosphatase(s), phospholipase C, production of inositol-trisphosphate and release of Ca2+ from the cellular stores. GFOGER, the classical collagen binding peptide of alpha1- alpha2- and alpha11-beta1 integrins, in triple helical or denatured form, does not produce any Ca2+ signal. The [Ca2+]i signalling induced by RGDS and DGEA is inhibited by antibodies against beta1 integrin subunit while that mediated by RGDS is also inhibited by antibodies against the alpha3 integrin. Delay in the acquisition of responsiveness is observed during cell adhesion and spreading on a coat of fibronectin for RGDS or collagen for DGEA or on a coat of the specific integrin-inhibiting antibodies but not by seeding cells on GFOGER or laminin-5. This delay is suppressed specifically by collagenase acting on the collagen coat or trypsin on the fibronectin coat. Our results suggest that free integrins and associated focal complexes generate a Ca2+ signal upon recognition of DGEA and RGDS by different cellular pathways.
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Affiliation(s)
- P Mineur
- Lab. Biologie des Tissus Conjonctifs, University of Liège, Belgium.
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Bijian K, Takano T, Papillon J, Le Berre L, Michaud JL, Kennedy CRJ, Cybulsky AV. Actin cytoskeleton regulates extracellular matrix-dependent survival signals in glomerular epithelial cells. Am J Physiol Renal Physiol 2005; 289:F1313-23. [PMID: 16014575 DOI: 10.1152/ajprenal.00106.2005] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Adhesion of rat glomerular epithelial cells (GEC) to collagen activates focal adhesion kinase (FAK) and the Ras-extracellular signal-regulated kinase (ERK) pathway and supports survival (prevents apoptosis). The present study addresses the relationship between actin organization and the survival phenotype. Parental GEC (adherent to collagen) and GEC stably transfected with constitutively active mutants of mitogen-activated protein kinase kinase (R4F-MEK) or FAK (CD2-FAK) (on plastic) showed ERK activation, low levels of apoptosis, and a cortical distribution of F-actin. Parental GEC adherent to plastic showed increased apoptosis, disorganization of cortical F-actin, and formation of prominent stress fibers. Assembly of cortical F-actin was, at least in part, mediated via ERK. However, disruption of the actin cytoskeleton with cytochalasin D or latrunculin B in parental GEC (on collagen) and in GEC that express R4F-MEK or CD2-FAK (on plastic) decreased ERK activation and increased apoptosis. Expression of a constitutively active RhoA (L(63)RhoA) induced assembly of cortical F-actin, promoted ERK activation, and supplanted the requirement of collagen for survival. Adhesion of GEC to collagen increased phosphatidylinositol-4,5-bisphosphate (PIP(2)). Downregulation or sequestration of PIP(2) by transfection with an inositol 5'-phosphatase or the plextrin-homology domain of phospholipase C-delta1 decreased F-actin content and survival. Moreover, overexpression of wild-type or K256E mutant alpha-actinin-4 with increased affinity for F-actin increased apoptosis. These results demonstrate a reciprocal relationship between collagen-induced cortical F-actin assembly and collagen-dependent survival signaling, including ERK activation. Appropriate remodeling of the actin cytoskeleton may be necessary for facilitating survival, as both disassembly and excessive crosslinking affect survival adversely.
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Affiliation(s)
- Krikor Bijian
- Department of Medicine, McGill University Health Centre, Montreal, Quebec, Canada
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Contacts of Basement Membrane Molecules with Cell Membranes. CURRENT TOPICS IN MEMBRANES 2005. [DOI: 10.1016/s1063-5823(05)56010-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Breitkreutz D, Mirancea N, Schmidt C, Beck R, Werner U, Stark HJ, Gerl M, Fusenig NE. Inhibition of basement membrane formation by a nidogen-binding laminin gamma1-chain fragment in human skin-organotypic cocultures. J Cell Sci 2004; 117:2611-22. [PMID: 15159456 DOI: 10.1242/jcs.01127] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Basement membranes generally determine different tissue compartments in complex organs, such as skin, playing not only an important structural but also a regulatory role. We have previously demonstrated the formation of a regular basement membrane in organotypic three-dimensional (3D)-cocultures of human skin keratinocytes and fibroblasts by indirect immunofluorescence and transmission electron microscopy. In this assembly process, cross-linking of type IV collagen and the laminin gamma1 chain by nidogen is considered a crucial step. For a functional proof, we have now competitively inhibited nidogen binding to laminin in 3D-cocultures with a recombinant laminin gamma1 fragment (gamma1III3-5 module) spanning this binding site. Repeated treatment abolished the deposition of nidogen at the epithelial-matrix interface but also greatly perturbed the presence of other matrix constituents such as laminin and perlecan. This effect persisted over the entire observation period of 10 to 21 days. In contrast, some components of the basement membrane zone were only moderately affected, with the laminin-5 isoform (gamma2 chain), type IV collagen and integrin alpha6ss4 still showing a distinct staining at their regular position, when seen by light microscopy. Furthermore, epidermal morphology and differentiation remained largely normal as indicated by the regular location of keratins K1/K10 and also of late differentiation markers. Ultrastructural examination demonstrated that the gamma1 fragment completely suppressed any formation of basement membrane structures (lamina densa) and also of hemidesmosomal adhesion complexes. As a consequence of hemidesmosome deficiency, keratin filament bundles were not attached to the ventral basal cell aspect. These findings were further substantiated by immuno-electron microscopy, revealing either loss or drastic reduction and dislocation of basement membrane and hemidesmosomal components. Taken together, in this simplified human skin model (representing a 'closed system') a functional link has been demonstrated between compound structures of the extra- and intracellular space at the junctional zone providing a basis to interfere at distinct points and in a controlled fashion.
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Affiliation(s)
- Dirk Breitkreutz
- German Cancer Research Center, Division A080, Im Neuenheimer Feld 280, 69120, Heidelberg, Germany.
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Datta K, Li J, Karumanchi SA, Wang E, Rondeau E, Mukhopadhyay D. Regulation of vascular permeability factor/vascular endothelial growth factor (VPF/VEGF-A) expression in podocytes. Kidney Int 2004; 66:1471-8. [PMID: 15458440 DOI: 10.1111/j.1523-1755.2004.00910.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND Vascular permeability factor/vascular endothelial growth factor (VPF/VEGF-A) is expressed constitutively in the adult glomerular podocytes at high levels; however, the regulation of its production is unclear. Recent data from podocyte-specific knockout mice suggest that VPF/VEGF-A is critical for the proper maintenance of glomerular filtration barrier and the glomerular endothelial fenestrae. We hypothesized that the glomerular basement membrane (GBM) matrix-podocyte interaction may play a role in the constitutive expression of VPF/VEGF-A in the adult glomerulus. METHODS VPF/VEGF-A mRNA levels in a human podocyte cell line grown in the presence of various extracellular matrices were quantitated by real-time polymerase chain reaction (PCR) experiments. VPF/VEGF-A protein levels in the culture supernatant from the same conditions were measured by enzyme-linked immunosorbent assay (ELISA). Promoter activity of VPF/VEGF-A gene in these cells was performed by transfecting full length (2.6 kb) VPF/VEGF-A promoter, which is fused with luciferase reporter gene. Immunoprecipitation and Western blot experiments were carried out in order to detect the association of hypoxia-inducible factor-alpha (HIF-alpha) and p300 in podocyte cells. RESULTS In this study, we provide preliminary evidence that signaling through the extracellular matrix proteins and, in particular, laminin and its receptor alpha(3)beta(1) integrin may regulate VPF/VEGF-A production in cultured podocytes in vitro. We also present data that increased activity of the transcription factor HIF-alphas in podocyte is not related to hypoxia and may lead to up-regulation of VPF/VEGF-A transcription. The classical type protein kinase C (PKC) may be a potential intermediate signaling molecule in this event. CONCLUSION These data suggest a novel nonhypoxic regulation of VPF/VEGF-A production in the glomerulus of the kidney during physiologic states. These observations may form the basis of more elaborate studies that will finally provide the detailed signaling pathway for VPF/VEGF-A synthesis in podocytes and will help our understanding of the pathogenesis of various VPF/VEGF-A-related diseases in the glomerulus of the kidney.
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Affiliation(s)
- Kaustubh Datta
- Department of Pathology, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, Massachusetts, USA.
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Abstract
Alpha3beta1 integrin has been considered to be a mysterious adhesion molecule due to the pleiotropy in its ligand-binding specificity. However, recent studies have identified laminin isoforms as high-affinity ligands for this integrin, and demonstrated that alpha3beta1 integrin plays a number of essential roles in development and differentiation, mainly by mediating the establishment and maintenance of epithelial tissues. Furthermore, alpha3beta1 integrin is also implicated in many other biological phenomena, including cell growth and apoptosis, angiogenesis and neural functions. This integrin receptor forms complexes with various other membrane proteins, such as the transmembrane-4 superfamily proteins (tetraspanins), cytoskeletal proteins and signaling molecules. Recently, lines of evidence have been reported showing that complex formation regulates integrin functions in cell adhesion and migration, signal transduction across cell membranes, and cytoskeletal organization. In addition to these roles in physiological processes, alpha3beta1 integrin performs crucial functions in various pathological processes, especially in wound healing, tumor invasion and metastasis, and infection by pathogenic microorganisms.
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Affiliation(s)
- Tsutomu Tsuji
- Department of Microbiology, Hoshi University School of Pharmacy and Pharmaceutical Sciences, Shinagawa-ku, Tokyo 142-8501, Japan.
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Bostwick DG, Burke HB, Djakiew D, Euling S, Ho SM, Landolph J, Morrison H, Sonawane B, Shifflett T, Waters DJ, Timms B. Human prostate cancer risk factors. Cancer 2004; 101:2371-490. [PMID: 15495199 DOI: 10.1002/cncr.20408] [Citation(s) in RCA: 383] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Prostate cancer has the highest prevalence of any nonskin cancer in the human body, with similar likelihood of neoplastic foci found within the prostates of men around the world regardless of diet, occupation, lifestyle, or other factors. Essentially all men with circulating androgens will develop microscopic prostate cancer if they live long enough. This review is a contemporary and comprehensive, literature-based analysis of the putative risk factors for human prostate cancer, and the results were presented at a multidisciplinary consensus conference held in Crystal City, Virginia, in the fall of 2002. The objectives were to evaluate known environmental factors and mechanisms of prostatic carcinogenesis and to identify existing data gaps and future research needs. The review is divided into four sections, including 1) epidemiology (endogenous factors [family history, hormones, race, aging and oxidative stress] and exogenous factors [diet, environmental agents, occupation and other factors, including lifestyle factors]); 2) animal and cell culture models for prediction of human risk (rodent models, transgenic models, mouse reconstitution models, severe combined immunodeficiency syndrome mouse models, canine models, xenograft models, and cell culture models); 3) biomarkers in prostate cancer, most of which have been tested only as predictive factors for patient outcome after treatment rather than as risk factors; and 4) genotoxic and nongenotoxic mechanisms of carcinogenesis. The authors conclude that most of the data regarding risk relies, of necessity, on epidemiologic studies, but animal and cell culture models offer promise in confirming some important findings. The current understanding of biomarkers of disease and risk factors is limited. An understanding of the risk factors for prostate cancer has practical importance for public health research and policy, genetic and nutritional education and chemoprevention, and prevention strategies.
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Lebel SP, Chen Y, Gingras D, Chung AE, Bendayan M. Morphofunctional studies of the glomerular wall in mice lacking entactin-1. J Histochem Cytochem 2003; 51:1467-78. [PMID: 14566019 PMCID: PMC3957556 DOI: 10.1177/002215540305101107] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The architecture of the basement membranes is essential for proper function. This architecture is based on interactions among its components, which assemble in a complex network. Entactin-1 appears to be the mastermind of this assembling. In entactin-1-null transgenic mice, immunocytochemistry established the absence of entactin-1 in the glomerular basement membrane, and morphological thickening of this membrane was demonstrated. This prompted us to investigate the organization of other components of the glomerular basement membrane in the transgenic animals. The distribution of type IV collagen and laminin remained unchanged, whereas that of anionic charges was significantly altered. We also evaluated the impact of the absence of entactin-1 on cell relays by studying the alpha(3)- and the alpha(v)-integrins along the endothelial and epithelial glomerular cell plasma membranes. Only the density of alpha(v) was found to be increased. Finally, the filtration properties of the glomerular wall were evaluated by revealing endogenous albumin distribution across the basement membrane. This was altered in transgenic animals, suggesting changes in permselectivity properties. Entactin-1 appears to be an essential component in basement membranes because its absence appears to modify the molecular organization leading to alterations in functional properties.
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Affiliation(s)
- Simon-Philippe Lebel
- Department of Pathology and Cell Biology, Université de Montréal, Montreal, Quebec, Canada (S-PL,DG,MB)
| | - Yong Chen
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (YC,AEC)
| | - Diane Gingras
- Department of Pathology and Cell Biology, Université de Montréal, Montreal, Quebec, Canada (S-PL,DG,MB)
| | - Albert E. Chung
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania (YC,AEC)
| | - Moise Bendayan
- Department of Pathology and Cell Biology, Université de Montréal, Montreal, Quebec, Canada (S-PL,DG,MB)
- Correspondence to: M. Bendayan, Dept. of Pathology and Cell Biology, Université de Montréal, CP6128 Succ. Centre Ville, Montreal, Quebec, Canada H3C 3J7. E-mail:
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Abstract
Glomerular podocytes are highly specialized cells with a complex cytoarchitecture. Their most prominent features are interdigitated foot processes with filtration slits in between. These are bridged by the slit diaphragm, which plays a major role in establishing the selective permeability of the glomerular filtration barrier. Injury to podocytes leads to proteinuria, a hallmark of most glomerular diseases. New technical approaches have led to a considerable increase in our understanding of podocyte biology including protein inventory, composition and arrangement of the cytoskeleton, receptor equipment, and signaling pathways involved in the control of ultrafiltration. Moreover, disturbances of podocyte architecture resulting in the retraction of foot processes and proteinuria appear to be a common theme in the progression of acquired glomerular disease. In hereditary nephrotic syndromes identified over the last 2 years, all mutated gene products were localized in podocytes. This review integrates our recent physiological and molecular understanding of the role of podocytes during the maintenance and failure of the glomerular filtration barrier.
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Affiliation(s)
- Hermann Pavenstädt
- Division of Nephrology, Department of Medicine, University Hospital Freiburg, Freiburg, Germany.
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Salmivirta K, Talts JF, Olsson M, Sasaki T, Timpl R, Ekblom P. Binding of mouse nidogen-2 to basement membrane components and cells and its expression in embryonic and adult tissues suggest complementary functions of the two nidogens. Exp Cell Res 2002; 279:188-201. [PMID: 12243745 DOI: 10.1006/excr.2002.5611] [Citation(s) in RCA: 89] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Nidogen-1 binds several basement membrane components by well-defined, domain-specific interactions. Organ culture and gene targeting approaches suggest that a high-affinity nidogen-binding site of the laminin gamma1 chain (gamma1III4) is important for kidney development and for nerve guidance. Other proteins may also bind gamma1III4, although human nidogen-2 binds poorly to the mouse laminin gamma1 chain. We therefore characterized recombinant mouse nidogen-2 and its binding to basement membrane proteins and cells. Mouse nidogen-1 and -2 interacted at comparable levels with collagen IV, perlecan, and fibulin-2 and, most notably, also with laminin-1 fragments P1 and gamma1III3-5, which both contain the gamma1III4 module. In embryos, nidogen-2 mRNA was produced by mesenchyme at sites of epithelial-mesenchymal interactions, but the protein was deposited on epithelial basement membranes, as previously shown for nidogen-1. Hence, binding of both nidogens to the epithelial laminin gamma1 chain is dependent on epithelial-mesenchymal interactions. Epidermal growth factor stimulated expression of both nidogens in embryonic submandibular glands. Both nidogens were found in all studied embryonic and adult basement membranes. Nidogen-2 was more adhesive than nidogen-1 for some cell lines and was mainly mediated by alpha3beta1 and alpha6beta1 integrins as shown by antibody inhibition. These findings revealed extensive coregulation of nidogen-1 and -2 expression and much more complementary functions of the two nidogens than previously recognized.
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Affiliation(s)
- Katriina Salmivirta
- Department of Cell and Molecular Biology, Uppsala University, Uppsala, Sweden
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Kretzler M. Regulation of adhesive interaction between podocytes and glomerular basement membrane. Microsc Res Tech 2002; 57:247-53. [PMID: 12012393 DOI: 10.1002/jemt.10083] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Glomerular filtration depends on well-orchestrated cell-cell and cell-matrix contacts of glomerular podocytes. Over the last years critical constituents of these contacts have been identified via molecular approaches. Podocyte cell-matrix interactions have been shown to be mediated in part by alpha(3)beta(1)-integrin heterodimers. Disturbances of integrin matrix interaction lead to detachment of podocytes in vitro, corresponding to the critical event of foot process retraction and glomerular basement membrane (GBM) denudation in vivo. Further, dystroglycan-mediated matrix attachment appears to play a critical role for podocyte foot process architecture. Downstream signaling events are currently elucidated concentrating mainly on integrin-dependent cascades and their consequences for podocyte adhesion and proliferation. An activation of the integrin-linked kinase in podocyte damage in vivo and in vitro makes this molecule a particularly interesting candidate for integrin-mediated inside-out and outside-in signaling in podocytes. Podocyte cell-cell interaction has been characterized in a few studies in vitro, indicating the slit diaphragm to be a modified adherens junction. The structural link between the cell-matrix and cell-cell contacts is maintained by the actin cytoskeleton, which may also enable cross-talk between these two cell contact sites. Examining podocyte function in tissue culture, animal models and human expression studies should allow further detailed dissection of the molecular pathways responsible for maintenance and failure of the glomerular filtration barrier.
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Meitinger D, Hunt DM, Shih DT, Fox JC, Hunt RC. Vitreous-induced modulation of integrins in retinal pigment epithelial cells: effects of fibroblast growth factor-2. Exp Eye Res 2001; 73:681-92. [PMID: 11747368 DOI: 10.1006/exer.2001.1079] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Growth in the presence of vitreous results in transformation of human RPE cells from an epithelioid to a fibroblast-like appearance and leads to an elevation of the expression of alpha(5) and alpha(2) integrins, while the level of alpha(3) integrin is reduced. These changes are inhibited by the presence of FGF-2. Vitreous treatment increases mobility, as does antibody neutralization of FGF-2 or antibody blockade of FGF receptors. The vitreous-induced rise in mobility depends on an increase in alpha(5) integrin expression since it is inhibited by anti-alpha(5) integrin antibodies. Expression of alpha(5) integrin as a result of infection of RPE cells with an alpha(5) integrin-encoding adenovirus induced morphological transformation and an increase in mobility similar to that seen with vitreous. It is concluded that a decrease in FGF-2 plays an important role in vitreous-induced alterations of RPE cell morphology, integrin expression and mobility. High FGF-2 levels prevent at least some of the increased mobility of RPE cells induced by vitreous. This is mediated via extracellular FGF-2 binding to FGF receptor(s) since antibodies to FGF-2 or to its receptor(s) mimic the effects of vitreous. Changes in mobility and morphology involve altered alpha(5) integrin expression since mobility is blocked by antibodies against these proteins while elevated alpha(5) integrin expression increases mobility and leads to morphological changes.
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Affiliation(s)
- D Meitinger
- Department of Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC 29208, USA
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