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Li Y, Lu X, Ren X, Ding K. Small Molecule Discoidin Domain Receptor Kinase Inhibitors and Potential Medical Applications. J Med Chem 2015; 58:3287-301. [DOI: 10.1021/jm5012319] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yupeng Li
- State Key Laboratory
of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health,
Chinese Academy of Sciences, No. 190
Kaiyuan Avenue, Guangzhou 510530, China
- University of Chinese Academy of Sciences, No. 19 Yuquan Road, Beijing 100049, China
| | - Xiaoyun Lu
- State Key Laboratory
of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health,
Chinese Academy of Sciences, No. 190
Kaiyuan Avenue, Guangzhou 510530, China
| | - Xiaomei Ren
- State Key Laboratory
of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health,
Chinese Academy of Sciences, No. 190
Kaiyuan Avenue, Guangzhou 510530, China
| | - Ke Ding
- State Key Laboratory
of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health,
Chinese Academy of Sciences, No. 190
Kaiyuan Avenue, Guangzhou 510530, China
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52
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Borza CM, Chen X, Zent R, Pozzi A. Cell Receptor-Basement Membrane Interactions in Health and Disease: A Kidney-Centric View. CURRENT TOPICS IN MEMBRANES 2015; 76:231-53. [PMID: 26610916 PMCID: PMC4913201 DOI: 10.1016/bs.ctm.2015.07.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Cell-extracellular matrix (ECM) interactions are essential for tissue development, homeostasis, and response to injury. Basement membranes (BMs) are specialized ECMs that separate epithelial or endothelial cells from stromal components and interact with cells via cellular receptors, including integrins and discoidin domain receptors. Disruption of cell-BM interactions due to either injury or genetic defects in either the ECM components or cellular receptors often lead to irreversible tissue injury and loss of organ function. Animal models that lack specific BM components or receptors either globally or in selective tissues have been used to help with our understanding of the molecular mechanisms whereby cell-BM interactions regulate organ function in physiological and pathological conditions. We review recently published works on animal models that explore how cell-BM interactions regulate kidney homeostasis in both health and disease.
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Affiliation(s)
- Corina M. Borza
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, 37232
- Vanderbilt Center for Kidney Disease, Vanderbilt University Medical Center, Nashville, TN, 37232
| | - Xiwu Chen
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, 37232
| | - Roy Zent
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, 37232
- Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN, 37232
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN, 37232
- Vanderbilt Center for Kidney Disease, Vanderbilt University Medical Center, Nashville, TN, 37232
- Department of Medicine, Veterans Administration Hospital, Nashville, TN, 37232
| | - Ambra Pozzi
- Department of Medicine, Division of Nephrology, Vanderbilt University Medical Center, Nashville, TN, 37232
- Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, TN, 37232
- Department of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, TN, 37232
- Vanderbilt Center for Kidney Disease, Vanderbilt University Medical Center, Nashville, TN, 37232
- Department of Medicine, Veterans Administration Hospital, Nashville, TN, 37232
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53
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Phan TN, Wong EL, Park SY, Kim HJ, Yang BS. Defective Ca(2+) binding in a conserved binding site causes incomplete N-glycan processing and endoplasmic reticulum trapping of discoidin domain receptors. Biosci Biotechnol Biochem 2014; 79:574-80. [PMID: 25470979 DOI: 10.1080/09168451.2014.987208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
An X-ray crystallographic study has suggested that vertebrate discoidin domain receptors (DDRs) have a conserved Ca(2+) binding site. DDR1 and DDR2 transfected in HEK293 cells were expressed mainly as 120 and 130 kDa forms, respectively, as they are sufficiently N-glycosylated. However, both of them showed the molecular weight of 110 kDa predominantly in the cells cultured with Ca(2+)-depleted media. DDR2-carrying D234A mutation at the conserved Ca(2+)-binding site expressed the 110 kDa form dominantly even in normal culture condition. DDR2 becomes 100 kDa form in glucose-depleted culture condition and its molecular weight increases up to 130 kDa with re-feeding glucose. However, in the mutant DDR2, the increase came to a halt at 110 kDa. The 110 kDa form had premature N-glycosyl carbohydrates and located predominantly within the endoplasmic reticulum. These results suggest that DDRs require Ca(2+)-binding to complete their N-glycan processing and generate the form targeted to cell membrane.
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Affiliation(s)
- Trong-Nhat Phan
- a Chemical Kinomics Research Center , Korea Institute of Science and Technology , Seoul , Korea
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54
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Leitinger B. Discoidin domain receptor functions in physiological and pathological conditions. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2014; 310:39-87. [PMID: 24725424 DOI: 10.1016/b978-0-12-800180-6.00002-5] [Citation(s) in RCA: 253] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The discoidin domain receptors, DDR1 and DDR2, are nonintegrin collagen receptors that are members of the receptor tyrosine kinase family. Both DDRs bind a number of different collagen types and play important roles in embryo development. Dysregulated DDR function is associated with progression of various human diseases, including fibrosis, arthritis, and cancer. By interacting with key components of the extracellular matrix and displaying distinct activation kinetics, the DDRs form a unique subfamily of receptor tyrosine kinases. DDR-facilitated cellular functions include cell migration, cell survival, proliferation, and differentiation, as well as remodeling of extracellular matrices. This review summarizes the current knowledge of DDR-ligand interactions, DDR-initiated signal pathways and the molecular mechanisms that regulate receptor function. Also discussed are the roles of DDRs in development and disease progression.
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Affiliation(s)
- Birgit Leitinger
- National Heart and Lung Institute, Imperial College London, London, United Kingdom.
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55
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Abstract
Over the last decade, identification and characterization of novel markers of progression and targets for therapy of chronic kidney disease (CKD) have been challenging for the research community. Several promising candidates have emerged, mainly from experimental models of CKD that are yet to be investigated in clinical studies. The authors identified two candidate genes: periostin, an extracellular matrix protein involved in bone and dental development, and the discoidin domain receptor 1 (DDR1), a collagen-binding membrane receptor with tyrosine kinase activity. Both genes are inactive in adulthood under normal conditions but have been shown to be highly inducible following injury to glomerular or tubular epithelial cells. The objective of this review is to summarize recent evidence supporting the role of periostin and DDR1 as potential novel biomarkers and therapeutic targets in CKD.
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56
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Moll S, Meier M, Formentini I, Pomposiello S, Prunotto M. New renal drug development to face chronic renal disease. Expert Opin Drug Discov 2014; 9:1471-85. [DOI: 10.1517/17460441.2014.956075] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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57
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Staudinger LA, Spano SJ, Lee W, Coelho N, Rajshankar D, Bendeck MP, Moriarty T, McCulloch CA. Interactions between the discoidin domain receptor 1 and β1 integrin regulate attachment to collagen. Biol Open 2013; 2:1148-59. [PMID: 24244851 PMCID: PMC3828761 DOI: 10.1242/bio.20135090] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2013] [Accepted: 08/21/2013] [Indexed: 12/15/2022] Open
Abstract
Collagen degradation by phagocytosis is essential for physiological collagen turnover and connective tissue homeostasis. The rate limiting step of phagocytosis is the binding of specific adhesion receptors, which include the integrins and discoidin domain receptors (DDR), to fibrillar collagen. While previous data suggest that these two receptors interact, the functional nature of these interactions is not defined. In mouse and human fibroblasts we examined the effects of DDR1 knockdown and over-expression on β1 integrin subunit function. DDR1 expression levels were positively associated with enhanced contraction of floating and attached collagen gels, increased collagen binding and increased collagen remodeling. In DDR1 over-expressing cells compared with control cells, there were increased numbers, area and length of focal adhesions immunostained for talin, paxillin, vinculin and activated β1 integrin. After treatment with the integrin-cleaving protease jararhagin, in comparison to controls, DDR1 over-expressing cells exhibited increased β1 integrin cleavage at the cell membrane, indicating that DDR1 over-expression affected the access and susceptibility of cell-surface β1 integrin to the protease. DDR1 over-expression was associated with increased glycosylation of the β1 integrin subunit, which when blocked by deoxymannojirimycin, reduced collagen binding. Collectively these data indicate that DDR1 regulates β1 integrin interactions with fibrillar collagen, which positively impacts the binding step of collagen phagocytosis and collagen remodeling.
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Affiliation(s)
- Lisa A Staudinger
- Matrix Dynamics Group, Faculty of Dentistry, University of Toronto , Toronto, ON M5S 3E2 , Canada
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58
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Low stability and a conserved N-glycosylation site are associated with regulation of the discoidin domain receptor family by glucose via post-translational N-glycosylation. Biosci Biotechnol Biochem 2013; 77:1907-16. [PMID: 24018687 DOI: 10.1271/bbb.130351] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cell-surface expression of the discoidin domain receptor (DDR) tyrosine kinase family in high molecular mass form was controlled sensitively by the glucose concentration through a post-translational N-glycosylation process. Cycloheximide time-course experiments revealed that the high-molecular-mass forms of DDR1 and DDR2 were significantly less stable than control receptor tyrosine kinases. Site-directed mutational analysis of the consensus N-glycosylation sites of the DDRs revealed that mutations of asparagine 213 of DDR2 and asparagine 211 of DDR1, a conserved N-glycosylation site among vertebrate DDRs, inhibited the generation of the high-molecular-mass isoform. Taken together, these results suggest a mechanism to control the activity of the DDR family by regulating its cell-surface expression. Due to low stability, the steady-state population of functional DDR proteins in the cell surface depends sensitively on its maturation process via post-translational N-glycosylation, which is controlled by the glucose supply and the presence of a conserved N-glycosylation site.
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59
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An update on the pathomechanisms and future therapies of Alport syndrome. Pediatr Nephrol 2013; 28:1025-36. [PMID: 22903660 DOI: 10.1007/s00467-012-2272-z] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2012] [Revised: 07/12/2012] [Accepted: 07/13/2012] [Indexed: 01/08/2023]
Abstract
Alport Syndrome (AS) is an inherited progressive disease that is caused by mutations of the genes encoding the key collagen chains, α3, α4, and α5, which are necessary for the composition of collagen type IV to form a robust glomerular basement membrane (GBM), capable of withstanding the significant biomechanical strain to which the glomerulus is subjected. Progressive loss of the filtration barrier allows excessive proteinuria, which ultimately leads to end-stage kidney disease (ESKD). The evidence for a beneficial renoprotective effect of renin-angiotensin-aldosterone system (RAAS) blockade by angiotensin-converting enzyme (ACE) inhibition and/or angiotensin receptor blockers (ARBs) is well established in AS and recent evidence has shown that it can significantly delay the time to onset of renal replacement therapy and ESKD. Future potential treatments of AS disease progression are evaluated in this review.
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60
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Wallace E, Gewin L. Imatinib: Novel Treatment of Immune-Mediated Kidney Injury. J Am Soc Nephrol 2013; 24:694-701. [DOI: 10.1681/asn.2012080818] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
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Santovito D, Mandolini C, Marcantonio P, De Nardis V, Bucci M, Paganelli C, Magnacca F, Ucchino S, Mastroiacovo D, Desideri G, Mezzetti A, Cipollone F. Overexpression of microRNA-145 in atherosclerotic plaques from hypertensive patients. Expert Opin Ther Targets 2013; 17:217-23. [PMID: 23339529 DOI: 10.1517/14728222.2013.745512] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND MicroRNAs (miRNAs) are endogenous, non-coding, short, single-stranded RNAs and represent a new class of gene regulators. Recent evidence supports a role for miRNAs in cardiovascular pathophysiology and atherosclerosis development. We have previously demonstrated that miR-145 is widely expressed in human atherosclerotic lesions and its downregulation has been correlated with vascular smooth muscle cell dedifferentiation, a cardinal step in the development of atherosclerosis. However, no evidences are available at this time about modulation of miR-145 in the setting of hypertension. Thus, the aim of this study was to investigate the expression of miR-145 in complicated hypertension. MATERIALS AND METHODS Atherosclerotic plaques were obtained from 22 patients undergoing carotid endarterectomy for high-grade internal carotid artery stenosis. Plaques were subdivided into hypertension (n = 15) and control (n = 7) groups according to the presence or absence of hypertension (as defined by blood pressure > 140/90 mmHg or current antihypertensive treatment). In study plaques, miR-145 values were evaluated using real-time PCR. The level of induction has been tested by using ΔΔ cycle threshold method. RESULTS We found that miR-145 was significantly more expressed in atherosclerotic plaques of hypertensive patients than in control plaques (1.201 ± 0.260 vs 0.483 ± 0.148 fold induction ± SE; p = 0.026). Moreover, a post-hoc analysis showed that treatment with angiotensin receptor blockers may be associated with the maximum increase in miR-145 levels, although these data did not show any statistical significance probably due to the limited sample size. CONCLUSIONS To the best of our knowledge, this study is the first demonstration that hypertension may upregulate miR-145 expression in human atherosclerotic plaques. Future investigations will be necessary to establish the molecular readout of miR-145 upregulation in atherosclerotic lesions in hypertension.
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Affiliation(s)
- Donato Santovito
- G. d'Annunzio University, European Center of Excellence on Atherosclerosis, Hypertension and Dyslipidemia, and Clinical Research Center, Center of Excellence on Aging (CeSI), Via dei Vestini, 66, 66100 Chieti, Italy
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62
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Yeh YC, Lin HH, Tang MJ. A tale of two collagen receptors, integrin β1 and discoidin domain receptor 1, in epithelial cell differentiation. Am J Physiol Cell Physiol 2012; 303:C1207-17. [DOI: 10.1152/ajpcell.00253.2012] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
As increase in collagen deposition is no longer taken as simply a consequence but, rather, an inducer of disease progression; therefore, the understanding of collagen signal transduction is fundamentally important. Cells contain at least two types of collagen receptors: integrins and discoidin domain receptors (DDRs). The integrin heterodimers α1β1, α2β1, α10β1, and α11β1 are recognized as the non-tyrosine kinase collagen receptors. DDR1 and 2, the tyrosine kinase receptors of collagen, are specifically expressed in epithelium and mesenchyme, respectively. While integrin β1 and DDR1 are both required for cell adhesion on collagen, their roles in epithelial cell differentiation during development and disease progression seem to counteract each other, with integrin β1 favoring epithelium mesenchyme transition (EMT) and DDR1 inducing epithelial cell differentiation. The in vitro evidence shows that the integrin β1 and DDR1 exert opposing actions in regulation of membrane stability of E-cadherin, which itself is a critical regulator of epithelial cell differentiation. Here, we review the functional roles of integrin β1 and DDR1 in regulation of epithelial cell differentiation during development and disease progression, and explore the underlining mechanisms regarding to the regulation of membrane stability of E-cadherin.
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Affiliation(s)
- Yi-Chun Yeh
- Department of Physiology, National Cheng Kung University Medicine College, Tainan, Taiwan; and
| | - Hsi-Hui Lin
- Department of Physiology, National Cheng Kung University Medicine College, Tainan, Taiwan; and
| | - Ming-Jer Tang
- Department of Physiology, National Cheng Kung University Medicine College, Tainan, Taiwan; and
- Center for Gene Regulation and Signal Transduction, National Cheng Kung University Medicine College, Tainan, Taiwan
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63
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Warden CH, Gularte-Mérida R, Fisler JS, Hansen S, Shibata N, Le A, Medrano JF, Stern JS. Leptin receptor interacts with rat chromosome 1 to regulate renal disease traits. Physiol Genomics 2012; 44:1052-62. [PMID: 22968639 DOI: 10.1152/physiolgenomics.00134.2011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Linkage mapping in a backcross of {Brown Norway [BN/Crl (BN)] × ZUC-Lepr (faSte) (ZUC)} × ZUC identified a male-specific quantitative trait locus (QTL) for urinary albumin excretion (UAE) on rat chromosome 1. A homozygous ZUC.BN-(D1Rat42-D1Rat90)/Ste congenic was produced containing BN donor alleles from 135 to 276 Mb from chromosome 1 on the ZUC background. We observed threefold higher urinary albumin-to-creatinine ratios (ACR) in 15-wk-old Zucker background strain males than in same sex and age congenic animals when both strains are also homozygous for the ZUC leptin receptor fatty mutation (Lepr (faSte)) (P < 0.0001). We then linkage mapped within the donor region without confounded effects from other chromosomes. Phenotypes were collected in 248 F2 male rats in a population made by crossing parents heterozygous for both the BN donor region and ZUC Lepr (faSte). Significant interactions were observed between the Lepr genotype and chromosome 1 QTL for six renal traits: urine volume, UAE at 10 and 15 wk, ACR, right kidney weight, and plasma urea nitrogen. A few traits, such as UAE and ACR, exhibit a second peak at the distal end of the chromosome. Hydronephrosis exhibited one or two QTLs contingent on adjustment for body weight. The results now demonstrate at least two sets of coincident traits with different correlations to kidney function.
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Affiliation(s)
- Craig H Warden
- Department of Pediatrics, University of California, Davis, California 95616, USA.
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64
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Westra IM, Pham BT, Groothuis GMM, Olinga P. Evaluation of fibrosis in precision-cut tissue slices. Xenobiotica 2012; 43:98-112. [DOI: 10.3109/00498254.2012.723151] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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65
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Valiathan RR, Marco M, Leitinger B, Kleer CG, Fridman R. Discoidin domain receptor tyrosine kinases: new players in cancer progression. Cancer Metastasis Rev 2012; 31:295-321. [PMID: 22366781 DOI: 10.1007/s10555-012-9346-z] [Citation(s) in RCA: 282] [Impact Index Per Article: 23.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Almost all human cancers display dysregulated expression and/or function of one or more receptor tyrosine kinases (RTKs). The strong causative association between altered RTK function and cancer progression has been translated into novel therapeutic strategies that target these cell surface receptors in cancer. Yet, the full spectrum of RTKs that may alter the oncogenic process is not completely understood. Accumulating evidence suggests that a unique set of RTKs known as the discoidin domain receptors (DDRs) play a key role in cancer progression by regulating the interactions of tumor cells with their surrounding collagen matrix. The DDRs are the only RTKs that specifically bind to and are activated by collagen. DDRs control cell and tissue homeostasis by acting as collagen sensors, transducing signals that regulate cell polarity, tissue morphogenesis, and cell differentiation. In cancer, DDRs are hijacked by tumor cells to disrupt normal cell-matrix communication and initiate pro-migratory and pro-invasive programs. Importantly, several cancer types exhibit DDR mutations, which are thought to alter receptor function and contribute to cancer progression. Other evidence suggests that the actions of DDRs in cancer are complex, either promoting or suppressing tumor cell behavior in a DDR type/isoform specific- and context-dependent manner. Thus, there is still a considerable gap in our knowledge of DDR actions in cancer tissues. This review summarizes and discusses the current knowledge on DDR expression and function in cancer. It is hoped that this effort will encourage more research into these poorly understood but unique RTKs, which have the potential of becoming novel therapeutic targets in cancer.
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Affiliation(s)
- Rajeshwari R Valiathan
- Department of Pathology, Wayne State University School of Medicine, Detroit, MI 48201, USA
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66
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Kerroch M, Guerrot D, Vandermeersch S, Placier S, Mesnard L, Jouanneau C, Rondeau E, Ronco P, Boffa J, Chatziantoniou C, Dussaule J. Genetic inhibition of discoidin domain receptor 1 protects mice against crescentic glomerulonephritis. FASEB J 2012; 26:4079-91. [DOI: 10.1096/fj.11-194902] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Monique Kerroch
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Dominique Guerrot
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Sophie Vandermeersch
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Sandrine Placier
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Laurent Mesnard
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Urgences Néphrologiques et Transplantation RénaleHôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Chantal Jouanneau
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Eric Rondeau
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Urgences Néphrologiques et Transplantation RénaleHôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Pierre Ronco
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Service de Néphrologie et DialysesHôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Jean‐Jacques Boffa
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Service de Néphrologie et DialysesHôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Christos Chatziantoniou
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
| | - Jean‐Claude Dussaule
- Institut National de la Santé et de la Recherche Médicale (INSERM)Unité Mixte de Recherche (UMR) S 702, Hôpital Tenon, Assistance Publique–Hôpitaux de Paris (AP‐HP)ParisFrance
- Université Pierre et Marie Curie (UPMC), Paris 6 UniversityParisFrance
- Department of PhysiologySaint‐Antoine Hospital, AP‐HPParisFrance
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67
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Thrombospondin-1 plays a profibrotic and pro-inflammatory role during ureteric obstruction. Kidney Int 2012; 81:1226-38. [PMID: 22418977 DOI: 10.1038/ki.2012.21] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Thrombospondin-1 (TSP-1) is an endogenous activator of transforming growth factor-β (TGF-β), and an anti-angiogenic factor, which may prevent kidney repair. Here we investigated whether TSP-1 is involved in the development of chronic kidney disease using rats with unilateral ureteral obstruction, a well-known model to study renal fibrosis. Obstruction of 10 days duration induced inflammation, tubular cell atrophy, dilation, apoptosis, and proliferation, leading to interstitial fibrosis. TSP-1 expression was increased in parallel to that of collagen III and TGF-β. Relief of the obstruction at day 10 produced a gradual improvement in renal structure and function, the reappearance of peritubular capillaries, and restoration of renal VEGF content over a 7- to 15-day post-relief period. TSP-1 expression decreased in parallel with that of TGF-β1 and collagen III. Mice in which the TSP-1 gene was knocked out displayed less inflammation and had better preservation of renal tissue and the peritubular capillary network compared to wild-type mice. Additional studies showed that the inflammatory effect of TSP-1 was mediated, at least in part, by monocyte chemoattractant protein-1 and activation of the Th17 pathway. Thus, TSP-1 is an important profibrotic and inflammatory mediator of renal disease. Blockade of its action may be a treatment against the development of chronic kidney disease.
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68
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Borza CM, Pozzi A. The role of cell-extracellular matrix interactions in glomerular injury. Exp Cell Res 2012; 318:1001-10. [PMID: 22417893 DOI: 10.1016/j.yexcr.2012.02.033] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2012] [Accepted: 02/24/2012] [Indexed: 01/09/2023]
Abstract
Glomerulosclerosis is characterized by excessive deposition of extracellular matrix within the glomeruli of the kidney, glomerular cell death, and subsequent loss of functional glomeruli. While in physiological situations the levels of extracellular matrix components are kept constant by a tight balance between formation and degradation, in the case of injury that results in fibrosis there is increased matrix deposition relative to its breakdown. Multiple factors control matrix synthesis and degradation, thus contributing to the development of glomerulosclerosis. This review focuses primarily on the role of cell-matrix interactions, which play a critical role in governing glomerular cell cues in both healthy and diseased kidneys. Cell-extracellular matrix interactions are made possible by various cellular receptors including integrins, discoidin domain receptors, and dystroglycan. Upon binding to a selective extracellular matrix protein, these receptors activate intracellular signaling pathways that can either downregulate or upregulate matrix synthesis and deposition. This, together with the observation that changes in the expression levels of matrix receptors have been documented in glomerular disease, clearly emphasizes the contribution of cell-matrix interactions in glomerular injury. Understanding the molecular mechanisms whereby extracellular matrix receptors regulate matrix homeostasis in the course of glomerular injury is therefore critical for devising more effective therapies to treat and ideally prevent glomerulosclerosis.
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Affiliation(s)
- Corina M Borza
- Department of Medicine, Division of Nephrology, Vanderbilt University, Nashville, TN 37232, USA.
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69
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Sun X, Phan TN, Jung SH, Kim SY, Cho JU, Lee H, Woo SH, Park TK, Yang BS. LCB 03-0110, a novel pan-discoidin domain receptor/c-Src family tyrosine kinase inhibitor, suppresses scar formation by inhibiting fibroblast and macrophage activation. J Pharmacol Exp Ther 2011; 340:510-9. [PMID: 22128347 DOI: 10.1124/jpet.111.187328] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Wound healing generally induces an inflammatory response associated with tissue fibrosis in which activated macrophage and myofibroblast cells are primarily involved. Although this is known to be the underlying mechanism for scarring and various fibrotic pathologies, no effective intervention is currently available. We identified (3-(2-(3-(morpholinomethyl)phenyl)thieno[3,2-b]pyridin-7-ylamino)phenol (LCB 03-0110), a thienopyridine derivative, as a potent inhibitor of discoidin domain receptor family tyrosine kinases and discovered that this compound strongly inhibits several tyrosine kinases, including the c-Src family, spleen tyrosine kinase, Bruton's tyrosine kinase, and vascular endothelial growth factor receptor 2, which are important for immune cell signaling and inflammatory reactions. LCB 03-0110 suppressed the proliferation and migration of primary dermal fibroblasts induced by transforming growth factor β1 and type I collagen, and this result correlated with the inhibition ability of the compound against enhanced expression of α-smooth muscle actin and activation of Akt1 and focal adhesion kinase. In J774A.1 macrophage cells activated by lipopolysaccharide LCB 03-0110 inhibited cell migration and nitric oxide, inducible nitric-oxide synthase, cyclooxygenase 2, and tumor necrosis factor-α synthesis. LCB 03-0110 applied topically to full excisional wounds on rabbit ears suppressed the accumulation of myofibroblast and macrophage cells in the healing wound and reduced hypertrophic scar formation after wound closing, without delaying the wound closing process. Taken together, the pharmacological activities of LCB 03-0110 suggest that it could be an effective agent for suppressing fibroinflammation by simultaneously targeting activated fibroblasts and macrophages.
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Affiliation(s)
- Xiaoyan Sun
- Korea Institute of Science and Technology, 39-1, Hawolgok-Dong, Sungbuk-Ku, Seoul 136-791, Korea
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70
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Wilson CG, Stone JW, Fowlkes V, Morales MO, Murphy CJ, Baxter SC, Goldsmith EC. Age-dependent expression of collagen receptors and deformation of type I collagen substrates by rat cardiac fibroblasts. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2011; 17:555-562. [PMID: 21740617 PMCID: PMC4045481 DOI: 10.1017/s1431927611000390] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Little is known about how age influences the ways in which cardiac fibroblasts interact with the extracellular matrix. We investigated the deformation of collagen substrates by neonatal and adult rat cardiac fibroblasts in monolayer and three-dimensional (3D) cultures, and quantified the expression of three collagen receptors [discoidin domain receptor (DDR)1, DDR2, and β1 integrin] and the contractile protein alpha smooth muscle actin (α-SMA) in these cells. We report that adult fibroblasts contracted 3D collagen substrates significantly less than their neonate counterparts, whereas no differences were observed in monolayer cultures. Adult cells had lower expression of β1 integrin and α-SMA than neonate cultures, and we detected significant correlations between the expression of α-SMA and each of the collagen receptors in neonate cells but not in adult cells. Consistent with recent work demonstrating age-dependent interactions with myocytes, our results indicate that interactions between cardiac fibroblasts and the extracellular matrix change with age.
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Affiliation(s)
- Christopher G. Wilson
- University of South Carolina School of Medicine, Department of Cell Biology & Anatomy, 6439 Garners Ferry Road, Columbia, SC 29209, USA
| | - John W. Stone
- University of South Carolina, Department of Chemistry & Biochemistry, 631 Sumter St., Columbia, SC 29208, USA
| | - Vennece Fowlkes
- University of South Carolina School of Medicine, Department of Cell Biology & Anatomy, 6439 Garners Ferry Road, Columbia, SC 29209, USA
| | - Mary O. Morales
- University of South Carolina School of Medicine, Department of Cell Biology & Anatomy, 6439 Garners Ferry Road, Columbia, SC 29209, USA
| | - Catherine J. Murphy
- University of Illinois at Urbana-Champaign, Department of Chemistry, A512 Chemical & Life Sciences Laboratory, 600 South Mathews Ave., Urbana, IL 61801, USA
| | - Sarah C. Baxter
- University of South Carolina, Department of Mechanical Engineering, 300 Main St., Columbia, SC 29208, USA
| | - Edie C. Goldsmith
- University of South Carolina School of Medicine, Department of Cell Biology & Anatomy, 6439 Garners Ferry Road, Columbia, SC 29209, USA
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71
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Guerrot D, Kerroch M, Placier S, Vandermeersch S, Trivin C, Mael-Ainin M, Chatziantoniou C, Dussaule JC. Discoidin domain receptor 1 is a major mediator of inflammation and fibrosis in obstructive nephropathy. THE AMERICAN JOURNAL OF PATHOLOGY 2011; 179:83-91. [PMID: 21640971 DOI: 10.1016/j.ajpath.2011.03.023] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/01/2010] [Revised: 02/08/2011] [Accepted: 03/17/2011] [Indexed: 11/29/2022]
Abstract
The interactions between tubulointerstitial infiltrating cells and the extracellular matrix play an important role in regulating renal fibrosis. Discoidin domain receptor 1 (DDR1) is a nonintegrin tyrosine kinase receptor for collagen implicated in cell adhesion, proliferation, and extracellular matrix remodeling. We have previously demonstrated that transgenic mice lacking DDR1 are protected from hypertension-associated renal fibrosis. The purpose of this study was to determine the role of DDR1 in renal inflammation and fibrosis related to primitive tubulointerstitial injury. After 12 days of unilateral ureteral obstruction (UUO), kidney histopathologic and real-time quantitative PCR analyses were performed in DDR1(-/-) and wild-type mice. DDR1 expression was strongly increased in the obstructed kidney. Wild-type mice developed important perivascular and interstitial inflammation and fibrosis. In comparison, DDR1(-/-) mice displayed reduced accumulation of fibrillar collagen and transforming growth factor β expression. F4/80(+) cell count and proinflammatory cytokines were remarkably blunted in DDR1(-/-) obstructed kidneys. Leukocyte rolling and adhesion evaluated by intravital microscopy were not different between DDR1(-/-) and wild-type mice. Importantly, macrophages isolated from DDR1(-/-) mice presented similar M1/M2 polarization but displayed impaired migration in response to monocyte chemoattractant protein-1. Together, these data suggest that DDR1 plays an important role in the pathogenesis of renal disease via enhanced inflammation. Inhibition of DDR1 expression or activity may represent a novel therapeutic target against the progression of renal diseases.
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Affiliation(s)
- Dominique Guerrot
- INSERM UMR S 702, Hôpital Tenon, Paris, France; UPMC Paris 6 University, Paris, France
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72
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Abstract
Collagen, the most abundant protein in animals, is a key component of extracellular matrices. Not only do collagens provide essential structural support for connective tissues, but they are also intimately involved in controlling a spectrum of cellular functions such as growth, differentiation, and morphogenesis. All collagens possess triple-helical regions through which they interact with a host of other proteins including cell surface receptors. A structurally diverse group of transmembrane receptors mediates the recognition of the collagen triple helix: integrins, discoidin domain receptors, glycoprotein VI, and leukocyte-associated immunoglobulin-like receptor-1. These collagen receptors regulate a wide range of behaviors including cell adhesion and migration, hemostasis, and immune function. Here these collagen receptors are discussed in terms of their molecular basis of collagen recognition, their signaling and developmental functions, and their roles in disease.
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Affiliation(s)
- Birgit Leitinger
- National Heart and Lung Institute, Imperial College London, London SW7 2AZ, United Kingdom.
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73
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Prunotto M, Gabbiani G, Pomposiello S, Ghiggeri G, Moll S. The kidney as a target organ in pharmaceutical research. Drug Discov Today 2011; 16:244-59. [DOI: 10.1016/j.drudis.2010.11.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Revised: 11/11/2010] [Accepted: 11/24/2010] [Indexed: 02/07/2023]
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74
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Yagil Y, Hessner M, Schulz H, Gosele C, Lebedev L, Barkalifa R, Sapojnikov M, Hubner N, Yagil C. Geno-transcriptomic dissection of proteinuria in the uninephrectomized rat uncovers a molecular complexity with sexual dimorphism. Physiol Genomics 2010; 42A:301-16. [PMID: 20876844 DOI: 10.1152/physiolgenomics.00149.2010] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Investigation of proteinuria, whose pathophysiology remains incompletely understood, is confounded by differences in the phenotype between males and females. We initiated a sex-specific geno-transcriptomic dissection of proteinuria in uninephrectomized male and female Sabra rats that spontaneously develop focal and segmental glomerulosclerosis, testing the hypothesis that different mechanisms might underlie the pathophysiology of proteinuria between the sexes. In the genomic arm, we scanned the genome of 136 male and 111 female uninephrectomized F2 populations derived from crosses between SBH/y and SBN/y. In males, we identified proteinuria-related quantitative trait loci (QTLs) on RNO2 and 20 and protective QTLs on RNO6 and 9. In females, we detected proteinuria-related QTLs on RNO11, 13, and 20. The only QTL overlap between the sexes was on RNO20. Using consomic strains, we confirmed the functional significance of this QTL in both sexes. In the transcriptomic arm, we searched on a genomewide scale for genes that were differentially expressed in kidneys of SBH/y and SBN/y with and without uninephrectomy. These studies identified within each sex differentially expressed genes of relevance to proteinuria. Integrating genomics with transcriptomics, we identified differentially expressed genes that mapped within the boundaries of the proteinuria-related QTLs, singling out 24 transcripts in males and 30 in females, only 4 of which (Tubb5, Ubd, Psmb8, and C2) were common to both sexes. Data mining revealed that these transcripts are involved in multiple molecular mechanisms, including immunity, inflammation, apoptosis, matrix deposition, and protease activity, with no single molecular pathway predominating in either sex. These results suggest that the pathophysiology of proteinuria is highly complex and that some of the underlying mechanisms are shared between the sexes, while others are sex specific and may account for the difference in the proteinuric phenotype between males and females.
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Affiliation(s)
- Yoram Yagil
- Laboratory for Molecular Medicine and Israeli Rat Genome Center, Faculty of Health Sciences, Ben-Gurion University, Barzilai Medical Center Campus, Ashkelon, Israel.
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75
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Franco C, Ahmad PJ, Hou G, Wong E, Bendeck MP. Increased cell and matrix accumulation during atherogenesis in mice with vessel wall-specific deletion of discoidin domain receptor 1. Circ Res 2010; 106:1775-83. [PMID: 20448217 DOI: 10.1161/circresaha.109.213637] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
RATIONALE Discoidin domain receptor (DDR)1 is a collagen receptor expressed on both smooth muscle cells (SMCs) and macrophages, where it plays important roles regulating cell and matrix accumulation during atherogenesis. Systemic deletion of DDR1 resulted in attenuated plaque growth but accelerated matrix accumulation in LDLR-deficient mice. Deletion of DDR1 solely on bone marrow-derived cells resulted in decreased macrophage accumulation and plaque growth but no change in matrix accumulation. OBJECTIVE These findings led us to hypothesize that accelerated matrix accumulation was attributable to the increased synthetic ability of Ddr1(-/-) resident vascular wall SMCs. METHODS AND RESULTS We used bone marrow transplantation to generate chimeric mice and investigate the role of SMC DDR1 during atherogenesis. Mice with deficiency of DDR1 in vessel wall-derived cells (Ddr1(+/+-->-/-)) or control mice (Ddr1(+/+-->+/+)) were fed an atherogenic diet for 12 weeks. We observed a 3.8-fold increase in the size of aortic sinus plaques in Ddr1(+/+-->-/-) compared to Ddr1(+/+-->+/+) mice. This was attributed to pronounced accumulation of collagen, elastin, proteoglycans, and fibronectin and resulted in a thickened fibrous cap. The enhanced matrix accumulation decreased the proportion of plaque area occupied by cells but was associated with a shift in the cellular composition of the lesions toward increased numbers of vessel wall-derived SMCs compared to bone marrow-derived macrophages. In vitro studies confirmed that Ddr1(-/-) SMCs expressed more matrix, proliferated more, and migrated farther than Ddr1(+/+) SMCs. CONCLUSIONS DDR1 expression on resident vessel wall SMCs limits proliferation, migration and matrix accumulation during atherogenesis.
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Affiliation(s)
- Christopher Franco
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Medical Sciences Building, Room 6213, 1 King's College Circle, Toronto, ON M5S 1A8, Canada
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76
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Gross O, Girgert R, Beirowski B, Kretzler M, Kang HG, Kruegel J, Miosge N, Busse AC, Segerer S, Vogel WF, Müller GA, Weber M. Loss of collagen-receptor DDR1 delays renal fibrosis in hereditary type IV collagen disease. Matrix Biol 2010; 29:346-56. [PMID: 20307660 DOI: 10.1016/j.matbio.2010.03.002] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2010] [Revised: 03/01/2010] [Accepted: 03/11/2010] [Indexed: 01/27/2023]
Abstract
Alport syndrome is a hereditary type IV collagen disease leading to progressive renal fibrosis, hearing loss and ocular changes. End stage renal failure usually develops during adolescence. COL4A3-/- mice serve as an animal model for progressive renal scarring in Alport syndrome. The present study evaluates the role of Discoidin Domain Receptor 1 (DDR1) in cell-matrix interaction involved in pathogenesis of Alport syndrome including renal inflammation and fibrosis. DDR1/COL4A3 Double-knockouts were compared to COL4A3-/- mice with 50% or 100% expression of DDR1, wildtype controls and to DDR1-/- COL4A3+/+ controls for over 6years. Double-knockouts lived 47% longer, mice with 50% DDR1 lived 29% longer and showed improved renal function (reduction in proteinuria and blood urea nitrogen) compared to animals with 100% DDR1 expression. Loss of DDR1 reduced proinflammatory, profibrotic cells via signaling of TGFbeta, CTGF, NFkappaB and IL-6 and decreased deposition of extracellular matrix. Immunogold-staining and in-situ hybridisation identified podocytes as major players in DDR1-mediated fibrosis and inflammation within the kidney. In summary, glomerular epithelial cells (podocytes) express DDR1. Loss of DDR1-expression in the kidney delayed renal fibrosis and inflammation in hereditary type IV collagen disease. This supports our hypothesis that podocyte-matrix interaction via collagen receptors plays an important part in progression of renal fibrosis in Alport disease. The blockade of collagen-receptor DDR1 might serve as an important new therapeutic concept in progressive fibrotic and inflammatory diseases in the future.
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Affiliation(s)
- Oliver Gross
- Department of Nephrology & Rheumatology, University Medicine Goettingen Robert-Koch Strasse 40, Goettingen, Germany.
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77
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Franco C, Britto K, Wong E, Hou G, Zhu SN, Chen M, Cybulsky MI, Bendeck MP. Discoidin Domain Receptor 1 on Bone Marrow–Derived Cells Promotes Macrophage Accumulation During Atherogenesis. Circ Res 2009; 105:1141-8. [DOI: 10.1161/circresaha.109.207357] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Rationale
:
We described a critical role for the discoidin domain receptor (DDR)1 collagen receptor tyrosine kinase during atherosclerotic plaque development. Systemic deletion of
Ddr1
in
Ldlr
−/−
mice accelerated matrix accumulation and reduced plaque size and macrophage content. However, whether these effects reflected an independent role for macrophage DDR1 during atherogenesis remained unresolved.
Methods
:
In the present study, we performed sex-mismatched bone marrow transplantation using
Ddr1
+/+
;
Ldlr
−/−
and
Ddr1
−/−
;
Ldlr
−/−
mice to investigate the role of macrophage DDR1 during atherogenesis. Chimeric mice with deficiency of DDR1 in bone marrow–derived cells (
Ddr1
−/−→+/+
) or control chimeric mice that received
Ddr1
+/+
;
Ldlr
−/−
marrow (
Ddr1
+/+→+/+
) were fed an atherogenic diet for 12 weeks.
Results
:
We observed a 66% reduction in atherosclerosis in the descending aorta and a 44% reduction in plaque area in the aortic sinus in
Ddr1
−/−→+/+
mice compared to
Ddr1
+/+→+/+
mice. Furthermore, we observed a specific reduction in the number of donor-derived macrophages in
Ddr1
−/−→+/+
plaques, suggesting that bone marrow deficiency of DDR1 attenuated atherogenesis by limiting macrophage accumulation in the plaque. We have also demonstrated that the effects of DDR1 on macrophage infiltration and accumulation can occur at the earliest stage of atherogenesis, the formation of the fatty streak. Deficiency of DDR1 limited the appearance of 5-bromodeoxyuridine–labeled monocytes/macrophages in the fatty streak and resulted in reduced lesion size in
Ldlr
−/−
mice fed a high fat diet for 2 weeks. In vitro studies to investigate the mechanisms involved revealed that macrophages from
Ddr1
−/−
mice had decreased adhesion to type IV collagen and decreased chemotactic invasion of type IV collagen in response to monocyte chemoattractant protein-1.
Conclusions
:
Taken together, our data support an independent and critical role for DDR1 in macrophage accumulation at early and late stages of atherogenesis.
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Affiliation(s)
- Christopher Franco
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Karen Britto
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Eric Wong
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Guangpei Hou
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Su-Ning Zhu
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Mian Chen
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Myron I. Cybulsky
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Michelle P. Bendeck
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
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78
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Ahmad PJ, Trcka D, Xue S, Franco C, Speer MY, Giachelli CM, Bendeck MP. Discoidin domain receptor-1 deficiency attenuates atherosclerotic calcification and smooth muscle cell-mediated mineralization. THE AMERICAN JOURNAL OF PATHOLOGY 2009; 175:2686-96. [PMID: 19893047 DOI: 10.2353/ajpath.2009.080734] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Intimal calcification is a feature of advanced atherosclerotic disease that predicts a two- to eightfold increase in the risk of coronary events. Type I collagen promotes vascular smooth muscle cell-mediated calcification, although the mechanism by which this occurs is unknown. The discoidin domain receptor 1 (DDR1) is a collagen receptor that is emerging as a critical mediator of atherosclerosis. To determine whether DDR1 is involved in intimal calcification, we fed male Ddr1(-/-);Ldlr(-/-) and Ddr1(+/+);Ldlr(-/-) mice an atherogenic diet for 6, 12, or 24 weeks. DDR1 deficiency significantly reduced the calcium content of the aortic arch, and microcomputed tomography demonstrated a significant decrease in hydroxyapatite deposition after 24 weeks of atherogenic diet. Reduced calcification was correlated with decreases in macrophage accumulation and tumor necrosis factor alpha staining, suggesting that the reduction in calcification was in part due to decreased inflammation. The chondrogenic markers type II collagen, type X collagen, and Sox-9 were expressed within the mineralized foci. An in vitro assay performed with vascular smooth muscle cells revealed that DDR1 was required for cell-mediated calcification of the matrix, and Ddr1(+/+) smooth muscle cells expressed more alkaline phosphatase activity, whereas Ddr1(-/-) smooth muscle cells expressed elevated levels of mRNA for nucleotide pyrophosphatase phosphodiesterase 1, an inhibitor of tissue mineralization. Taken together, our results demonstrate that DDR1 mediates an important mechanism for atherosclerotic calcification.
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Affiliation(s)
- Pamela J Ahmad
- Institute of Medical Science, University of Toronto, Ontario, Canada
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79
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Restoration of podocyte structure and improvement of chronic renal disease in transgenic mice overexpressing renin. PLoS One 2009; 4:e6721. [PMID: 19696925 PMCID: PMC2725297 DOI: 10.1371/journal.pone.0006721] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2009] [Accepted: 07/12/2009] [Indexed: 11/19/2022] Open
Abstract
Background Proteinuria is a major marker of the decline of renal function and an important risk factor of coronary heart disease. Elevated proteinuria is associated to the disruption of slit-diaphragm and loss of podocyte foot processes, structural alterations that are considered irreversible. The objective of the present study was to investigate whether proteinuria can be reversed and to identify the structural modifications and the gene/protein regulation associated to this reversal. Methodology/Principal Findings We used a novel transgenic strain of mouse (RenTg) that overexpresses renin at a constant high level. At the age of 12-month, RenTg mice showed established lesions typical of chronic renal disease such as peri-vascular and periglomerular inflammation, glomerular ischemia, glomerulosclerosis, mesangial expansion and tubular dilation. Ultrastructural analysis indicated abnormal heterogeneity of basement membrane thickness and disappearance of podocyte foot processes. These structural alterations were accompanied by decreased expressions of proteins specific of podocyte (nephrin, podocin), or tubular epithelial cell (E-cadherin and megalin) integrity. In addition, since TGFβ is considered the major pro-fibrotic agent in renal disease and since exogenous administration of BMP7 is reported to antagonize the TGFβ-induced phenotype changes in kidney, we have screened the expressions of several genes belonging in the TGFβ/BMP superfamily. We found that the endogenous inhibitors of BMPs such as noggin and Usag-1 were several-fold activated inhibiting the action of BMPs and thus reinforcing the deleterious action of TGFβ.Treatment with an AT1 receptor antagonist, at dose that did not decrease arterial pressure, gradually reduced albuminuria. This decrease was accompanied by re-expression of podocin, nephrin, E-cadherin and megalin, and reappearance of podocyte foot processes. In addition, expressions of noggin and Usag-1 were markedly decreased, permitting thus activation of the beneficial action of BMPs. Conclusions/Significance These findings show that proteinuria and alterations in the expression of proteins involved in the integrity and function of glomerular and renal epithelial phenotype are reversible events when the local action of angiotensin II is blocked, and provide hope that chronic renal disease can be efficiently treated.
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80
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Helle F, Jouzel C, Chadjichristos C, Placier S, Flamant M, Guerrot D, François H, Dussaule JC, Chatziantoniou C. Improvement of renal hemodynamics during hypertension-induced chronic renal disease: role of EGF receptor antagonism. Am J Physiol Renal Physiol 2009; 297:F191-9. [DOI: 10.1152/ajprenal.00015.2009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
The present study investigated mechanisms of regression of renal disease after severe proteinuria by focusing on the interaction among EGF receptors, renal hemodynamics, and structural lesions. The nitric oxide (NO) inhibitor NG-nitro-l-arginine-methyl ester (l-NAME) was administered chronically in Sprague-Dawley rats. When proteinuria exceeded 2 g/mmol creatinine, animals were divided into three groups for an experimental period of therapy of 2 wk; in one group, l-NAME was removed to allow reactivation of endogenous NO synthesis; in the two other groups, l-NAME removal was combined with EGF or angiotensin receptor type 1 (AT1) antagonism. l-NAME removal partially reduced mean arterial pressure and proteinuria and increased renal blood flow (RBF), but not microvascular hypertrophy. Progression of structural damage was stopped, but not reversed. The administration of an EGF receptor antagonist did not have an additional effect on lowering blood pressure or on renal inflammation but did normalize RBF and afferent arteriole hypertrophy; the administration of an AT1 antagonist normalized all measured functional and structural parameters. Staining with a specific marker of endothelial integrity indicated loss of functional endothelial cells in the l-NAME removal group; in contrast, in the animals treated with an EGF or AT1 receptor antagonist, functional endothelial cells reappeared at levels equal to control animals. In addition, afferent arterioles freshly isolated from the l-NAME removal group showed an exaggerated constrictor response to endothelin; this response was blunted in the vessels isolated from the EGF or AT1 receptor antagonist groups. The EGF receptor is an important mediator of endothelial dysfunction and contributes to the decline of RBF in the chronic kidney disease induced by NO deficiency. The EGF receptor antagonist-induced improvement of RBF is important but not sufficient for a complete reversal of renal disease, because it has little effect on renal inflammation. To achieve full recovery, it is necessary to apply AT1 receptor antagonism.
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81
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Adiguzel E, Ahmad PJ, Franco C, Bendeck MP. Collagens in the progression and complications of atherosclerosis. Vasc Med 2009; 14:73-89. [PMID: 19144782 DOI: 10.1177/1358863x08094801] [Citation(s) in RCA: 160] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Collagens constitute a major portion of the extracellular matrix in the atherosclerotic plaque, where they contribute to the strength and integrity of the fibrous cap, and also modulate cellular responses via specific receptors and signaling pathways. This review focuses on the diverse roles that collagens play in atherosclerosis; regulating the infiltration and differentiation of smooth muscle cells and macrophages; controlling matrix remodeling through feedback signaling to proteinases; and influencing the development of atherosclerotic complications such as plaque rupture, aneurysm formation and calcification. Expanding our understanding of the pathways involved in cell-matrix interactions will provide new therapeutic targets and strategies for the diagnosis and treatment of atherosclerosis.
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Affiliation(s)
- Eser Adiguzel
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
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82
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Day E, Waters B, Spiegel K, Alnadaf T, Manley PW, Buchdunger E, Walker C, Jarai G. Inhibition of collagen-induced discoidin domain receptor 1 and 2 activation by imatinib, nilotinib and dasatinib. Eur J Pharmacol 2008; 599:44-53. [PMID: 18938156 DOI: 10.1016/j.ejphar.2008.10.014] [Citation(s) in RCA: 208] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Revised: 09/15/2008] [Accepted: 10/05/2008] [Indexed: 01/15/2023]
Abstract
Imatinib, nilotinib and dasatinib are protein kinase inhibitors which target the tyrosine kinase activity of the Breakpoint Cluster Region-Abelson kinase (BCR-ABL) and are used to treat chronic myelogenous leukemia. Recently, using a chemical proteomics approach another tyrosine kinase, the collagen receptor Discoidin Domain Receptor1 (DDR1) has also been identified as a potential target of these compounds. To further investigate the interaction of imatinib, nilotinib and dasatinib with DDR1 kinase we cloned and expressed human DDR1 and developed biochemical and cellular functional assays to assess their activity against DDR1 and the related receptor tyrosine kinase Discoidin Domain Receptor2 (DDR2). Our studies demonstrate that all 3 compounds are potent inhibitors of the kinase activity of both DDR1 and DDR2. In order to investigate the question of selectivity among DDR1, DDR2 and other tyrosine kinases we have aligned DDR1 and DDR2 protein sequences to other closely related members of the receptor tyrosine kinase family such as Muscle Specific Kinase (MUSK), insulin receptor (INSR), Abelson kinase (c-ABL), and the stem cell factor receptor (c-KIT) and have built homology models for the DDR1 and DDR2 kinase domains. In spite of high similarity among these kinases we show that there are differences within the ATP-phosphate binding loop (P-loop), which could be exploited to obtain kinase selective compounds. Furthermore, the potent DDR1 and DDR2 inhibitory activity of imatinib, nilotinib and dasatinib may have therapeutic implications in a number of inflammatory, fibrotic and neoplastic diseases.
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Affiliation(s)
- Elizabeth Day
- Novartis Institutes of Biomedical Research, Respiratory Disease Area, Wimblehurst Road, Horsham, RH12 5AB, UK
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83
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Ronco P, Chatziantoniou C. Matrix metalloproteinases and matrix receptors in progression and reversal of kidney disease: therapeutic perspectives. Kidney Int 2008; 74:873-8. [DOI: 10.1038/ki.2008.349] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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84
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Franco C, Hou G, Ahmad PJ, Fu EY, Koh L, Vogel WF, Bendeck MP. Discoidin Domain Receptor 1 (
Ddr1
) Deletion Decreases Atherosclerosis by Accelerating Matrix Accumulation and Reducing Inflammation in Low-Density Lipoprotein Receptor–Deficient Mice. Circ Res 2008; 102:1202-11. [DOI: 10.1161/circresaha.107.170662] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Collagens are abundant within the atherosclerotic plaque, where they contribute to lesion volume and mechanical stability and influence cell signaling. The discoidin domain receptor 1 (DDR1), a receptor tyrosine kinase that binds to collagen, is expressed in blood vessels, but evidence for a functional role during atherogenesis is incomplete. In the present study, we generated
Ddr1
+/+
;
Ldlr
−/−
and
Ddr1
−/−
;
Ldlr
−/−
mice and fed them an atherogenic diet for 12 or 24 weeks. Targeted deletion of
Ddr1
resulted in a 50% to 60% reduction in atherosclerotic lesion area in the descending aorta at both 12 and 24 weeks.
Ddr1
−/−
;
Ldlr
−/−
plaques exhibited accelerated deposition of fibrillar collagen and elastin at 12 weeks compared with
Ddr1
+/+
;
Ldlr
−/−
plaques. Expression analysis of laser microdissected lesions in vivo, and of
Ddr1
−/−
smooth muscle cells in vitro, revealed increased mRNA levels for procollagen α1(I) and α1(III) and tropoelastin, suggesting an enhancement of matrix synthesis in the absence of DDR1. Furthermore, whereas plaque smooth muscle cell content was unchanged,
Ddr1
−/−
;
Ldlr
−/−
plaques had a 49% decrease in macrophage content at 12 weeks, with a concomitant reduction of in situ gelatinolytic activity. Moreover, mRNA expression of both monocyte chemoattractant protein-1 and vascular cell adhesion molecule-1 was reduced in vivo, and
Ddr1
−/−
;
Ldlr
−/−
macrophages demonstrated impaired matrix metalloproteinase expression in vitro. These data suggest novel roles for DDR1 in macrophage recruitment and invasion during atherogenesis. In conclusion, our data support a role for DDR1 in the regulation of both inflammation and fibrosis early in plaque development. Deletion of DDR1 attenuated atherogenesis and resulted in the formation of matrix-rich plaques.
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Affiliation(s)
- Christopher Franco
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Guangpei Hou
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Pamela J. Ahmad
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Edwin Y.K. Fu
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Lena Koh
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Wolfgang F. Vogel
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
| | - Michelle P. Bendeck
- From the Department of Laboratory Medicine and Pathobiology, University of Toronto, Ontario, Canada
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85
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Konitsiotis AD, Raynal N, Bihan D, Hohenester E, Farndale RW, Leitinger B. Characterization of high affinity binding motifs for the discoidin domain receptor DDR2 in collagen. J Biol Chem 2008; 283:6861-8. [PMID: 18201965 DOI: 10.1074/jbc.m709290200] [Citation(s) in RCA: 150] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The discoidin domain receptors, DDR1 and DDR2, are receptor tyrosine kinases that are activated by native triple-helical collagen. Here we have located three specific DDR2 binding sites by screening the entire triple-helical domain of collagen II, using the Collagen II Toolkit, a set of overlapping triple-helical peptides. The peptide sequence that bound DDR2 with highest affinity interestingly contained the sequence for the high affinity binding site for von Willebrand factor in collagen III. Focusing on this sequence, we used a set of truncated and alanine-substituted peptides to characterize the sequence GVMGFO (O is hydroxyproline) as the minimal collagen sequence required for DDR2 binding. Based on a recent NMR analysis of the DDR2 collagen binding domain, we generated a model of the DDR2-collagen interaction that explains why a triple-helical conformation is required for binding. Triple-helical peptides comprising the DDR2 binding motif not only inhibited DDR2 binding to collagen II but also activated DDR2 transmembrane signaling. Thus, DDR2 activation may be effected by single triple-helices rather than fibrillar collagen.
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86
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Abstract
Discoidin domain receptor 1 (DDR1) is a tyrosine kinase receptor that is activated by native collagen. The physiological functions of DDR1 include matrix homeostasis and cell growth, adhesion, branching, and migration, but the specific role of DDR1 in the development and function of the inner ear has not been analyzed. Here, we show that deletion of the DDR1 gene in mouse is associated with a severe decrease in auditory function and substantial structural alterations in the inner ear. Immunohistochemical analysis demonstrated DDR1 expression in several locations in the cochlea, mostly associated with basement membrane and fibrillar collagens; in particular in basal cells of the stria vascularis, type III fibrocytes, and cells lining the basilar membrane of the organ of Corti. In the stria vascularis, loss of DDR1 function resulted in altered morphology of the basal cells and accumulation of electron-dense matrix within the strial epithelial layer in conjunction with a focal and progressive deterioration of strial cells. Cell types in proximity to the basilar membrane, such as Claudius', inner and outer sulcus cells, also showed marked ultrastructural alterations. Changes in the organ of Corti, such as deterioration of the supporting cells, specifically the outer hair cells, Deiters', Hensen's and bordering cells, are likely to interfere with mechanical properties of the organ and may be responsible for the hearing loss observed in DDR1-null mice. These findings may also have relevance to the role of DDR1 in other disease processes, for example, those affecting the kidney.
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87
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88
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Dussaule JC, Chatziantoniou C. Reversal of renal disease: is it enough to inhibit the action of angiotensin II? Cell Death Differ 2007; 14:1343-9. [PMID: 17396129 DOI: 10.1038/sj.cdd.4402143] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Over the last years, evidence emerged demonstrating that the progression of renal fibrosis is reversible in experimental models. The present review summarizes the new insights concerning the mechanisms of progression and regression of renal disease and examines this novel evidence under the light of feasibility and transfer to human nephropathies. The involved mechanisms are discussed with particular emphasis on the fibrotic role of vasoactive peptides such as angiotensin II and endothelin, and growth factors such as transforming growth factor beta (TGFbeta). The possibility of regression is introduced by presenting the in vivo efficiency of anti-hypertensive treatments and of systems that antagonize the fibrogenic action of TGFbeta such as bone morphogenic protein-7 (BMP-7) and hepatocyte growth factor. Finally, we provide a brief description of the promising future directions and clinical considerations about the applications of the experimental data to humans.
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