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Selman G, Martinez L, Lightle A, Aguilar A, Woltmann D, Xiao Y, Vazquez-Padron RI, Salman LH. A hyaluronan synthesis inhibitor delays the progression of diabetic kidney disease in a mouse experimental model. KIDNEY360 2021; 2:809-818. [PMID: 34350420 PMCID: PMC8330520 DOI: 10.34067/kid.0004642020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The role of hyaluronan (HA) in the development and progression of diabetic kidney disease (DKD), as well as the precise mechanisms and consequences of HA involvement in this pathology are still to be clarified. METHODS In this study, we assayed the effects of the HA synthesis inhibitor 4-methylumbelliferone (4-MU) on the development of DKD. Diabetic type 2 model mice (eNOS-/- C57BLKS/Jdb) were fed artificial diets containing 5% 4-MU or not for 9 weeks. Plasma glucose, glomerular filtration rate (GFR), albumin to creatinine ratio (ACR), and biomarkers of kidney function and systemic inflammation were measured at baseline and after treatment. Diabetic nephropathy was further characterized in treated and control mice by histopathology. RESULTS Treated animals consumed a daily dose of approximately 6.2 g of 4-MU per kg of body weight. At the end of the experimental period, the 4-MU supplemented diet resulted in a significant decrease in non-fasting plasma glucose (516 [interquartile range 378-1170] vs. 1149 [875.8-1287] mg/dL, P=0.050) and a trend toward lower HA kidney content (5.6 ± 1.5 vs. 8.8 ± 3.1 ng/mg of kidney weight, P=0.070) compared to the control diet, respectively. Diabetic animals treated with 4-MU showed significantly higher GFR and lower urine ACR and plasma cystatin C levels than diabetic controls. Independent histological assessment of DKD also demonstrated a significant decrease in mesangial expansion score and glomerular injury index in 4-MU-treated mice compared to controls. Plasma glucose showed a strong correlation with kidney HA levels (r=0.66, P=0.0098). Both total hyaluronan (r=0.76, P=0.0071) and low-molecular-weight hyaluronan content (r=0.64, P=0.036) in the kidneys correlated with urine ACR in mice. CONCLUSION These results show that the hyaluronan synthesis inhibitor 4-MU effectively slowed the progression of DKD and constitutes a potential new therapeutic approach to treat DKD.
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Affiliation(s)
- Guillermo Selman
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Laisel Martinez
- DeWitt Daughtry Family Department of Surgery, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - Andrea Lightle
- Department of Pathology, Albany Medical Center, Albany, New York
| | - Alejandra Aguilar
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Daniel Woltmann
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Yuxuan Xiao
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York
| | - Roberto I. Vazquez-Padron
- DeWitt Daughtry Family Department of Surgery, Leonard M. Miller School of Medicine, University of Miami, Miami, Florida
| | - Loay H. Salman
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York,Division of Nephrology and Hypertension, Albany Medical Center, Albany, New York
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2
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Zhou C, Wang Y, Wang Y, Lei L, Ji MH, Zhou G, Xia H, Yang JJ. Predicting lung adenocarcinoma prognosis with a novel risk scoring based on platelet-related gene expression. Aging (Albany NY) 2021; 13:8706-8719. [PMID: 33619234 PMCID: PMC8034940 DOI: 10.18632/aging.202682] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 02/01/2021] [Indexed: 04/09/2023]
Abstract
Lung adenocarcinoma is the most common subtype of non-small cell lung cancer, and platelet receptor-related genes are related to its occurrence and progression. A new prognostic indicator based on platelet receptor-related genes was developed with multivariate COX analysis. Prognostic markers based on platelet-related risk score perform moderately in prognosis prediction. The functional annotation of this risk model in high-risk patients shows that the pathways related to cell cycle, glycolysis and platelet-derived related factors are rich. It is worth noting that somatic mutation analysis shows that TTN and MUC16 have higher mutation burdens in high-risk patients. Moreover, the differential genes of high- and low-risk groups are regulated by copy number variation and miRNA. And we provide a free online nomogram web tool based on clinical factors and the risk score (https://wsxzaq.shinyapps.io/wsxzaq_nomogram/). The score has been verified among three independent external cohorts (GSE13213, GSE68465 and GSE72094), and is still an independent risk factor for lung adenocarcinoma. In addition, among the other 6 cancers, the OS prognosis of high and low-risk groups of PRS is different (P < 0.05). Our research results have screened multiple platelet differential genes with clinical significance and constructed a meaningful prognostic risk score (PRS).
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Affiliation(s)
- Chengmao Zhou
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
- School of Medicine, Southeast University, Nanjing 210009, China
| | - Yongsheng Wang
- Department of Respiratory Medicine, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Ying Wang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Lei Lei
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Mu-Huo Ji
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Guoren Zhou
- Jiangsu Cancer Hospital, The Affiliated Cancer Hospital of Nanjing Medical University, Jiangsu Institute of Cancer Research, Nanjing 210009, China
| | - Hongping Xia
- Department of Pathology, School of Basic Medical Sciences & Key Laboratory of Antibody Technique of National Health Commission & Jiangsu Antibody Drug Engineering Research Center, Nanjing Medical University, Nanjing 211166, China
- School of Medicine, Southeast University, Nanjing 210009, China
- Sir Run Run Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Jian-Jun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
- School of Medicine, Southeast University, Nanjing 210009, China
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3
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Midgley AC, Wei Y, Zhu D, Gao F, Yan H, Khalique A, Luo W, Jiang H, Liu X, Guo J, Zhang C, Feng G, Wang K, Bai X, Ning W, Yang C, Zhao Q, Kong D. Multifunctional Natural Polymer Nanoparticles as Antifibrotic Gene Carriers for CKD Therapy. J Am Soc Nephrol 2020; 31:2292-2311. [PMID: 32769144 DOI: 10.1681/asn.2019111160] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 05/27/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Progressive fibrosis is the underlying pathophysiological process of CKD, and targeted prevention or reversal of the profibrotic cell phenotype is an important goal in developing therapeutics for CKD. Nanoparticles offer new ways to deliver antifibrotic therapies to damaged tissues and resident cells to limit manifestation of the profibrotic phenotype. METHODS We focused on delivering plasmid DNA expressing bone morphogenetic protein 7 (BMP7) or hepatocyte growth factor (HGF)-NK1 (HGF/NK1) by encapsulation within chitosan nanoparticles coated with hyaluronan, to safely administer multifunctional nanoparticles containing the plasmid DNA to the kidneys for localized and sustained expression of antifibrotic factors. We characterized and evaluated nanoparticles in vitro for biocompatibility and antifibrotic function. To assess antifibrotic activity in vivo, we used noninvasive delivery to unilateral ureteral obstruction mouse models of CKD. RESULTS Synthesis of hyaluronan-coated chitosan nanoparticles containing plasmid DNA expressing either BMP7 or NGF/NKI resulted in consistently sized nanoparticles, which-following endocytosis driven by CD44+ cells-promoted cellular growth and inhibited fibrotic gene expression in vitro. Intravenous tail injection of these nanoparticles resulted in approximately 40%-45% of gene uptake in kidneys in vivo. The nanoparticles attenuated the development of fibrosis and rescued renal function in unilateral ureteral obstruction mouse models of CKD. Gene delivery of BMP7 reversed the progression of fibrosis and regenerated tubules, whereas delivery of HGF/NK1 halted CKD progression by eliminating collagen fiber deposition. CONCLUSIONS Nanoparticle delivery of HGF/NK1 conveyed potent antifibrotic and proregenerative effects. Overall, this research provided the proof of concept on which to base future investigations for enhanced targeting and transfection of therapeutic genes to kidney tissues, and an avenue toward treatment of CKD.
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Affiliation(s)
- Adam C Midgley
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China .,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Yongzhen Wei
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Dashuai Zhu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Fangli Gao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Hongyu Yan
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Anila Khalique
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Wenya Luo
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Huan Jiang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Xiangsheng Liu
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China.,Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Jiasen Guo
- Department of Genetics and Cellular Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Chuangnian Zhang
- Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Guowei Feng
- Department of Genitourinary Oncology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin's Clinical Research Center for Cancer, Tianjin, China
| | - Kai Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Xueyuan Bai
- Department of Nephrology, Chinese PLA General Hospital, Chinese PLA Institute of Nephrology, Beijing, China.,State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Beijing, China
| | - Wen Ning
- Department of Genetics and Cellular Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Chao Yang
- Key Laboratory of Molecular Microbiology and Technology, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Qiang Zhao
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China
| | - Deling Kong
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin, China .,Rongxiang Xu Center for Regenerative Life Science, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China.,Tianjin Key Laboratory of Biomaterial Research, Institute of Biomedical Engineering, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
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4
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Iwamoto T, Niewold TB. Genetics of human lupus nephritis. Clin Immunol 2016; 185:32-39. [PMID: 27693588 DOI: 10.1016/j.clim.2016.09.012] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/22/2016] [Accepted: 09/26/2016] [Indexed: 01/06/2023]
Abstract
Systemic lupus erythematosus (SLE) is an inflammatory autoimmune disease characterized by immune complex formation with multi-organ manifestations. Lupus nephritis (LN) is one of the most severe types of organ damage in SLE, and it clearly contributes to increased morbidity and mortality due to SLE. LN occurs more frequently and is more severe in non-European ancestral backgrounds, although the cause of this disparity remains largely unknown. Genetic factors play an important role in the pathogenesis of SLE. Although many SLE susceptibility genes have been identified, the genetic basis of LN is not as well understood. While some of the established general SLE susceptibility genes are associated with LN, recent discoveries highlight a number of genes with renal functions that are specifically associated with LN. Some of these genes associated with LN help to explain the disparity in the prevalence of nephritis between individuals with SLE, and also partially explain differences in LN between ancestral backgrounds. Moreover, not only the gene mutations, but also post-translational modifications seem to play important roles in the pathogenesis of LN. Overall it seems likely that a combination of general SLE susceptibility genes cooperate with LN specific risk genes to result in the genetic propensity for LN. In this review, we will outline the genetic contribution to LN and describe possible roles of LN susceptibility genes.
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Affiliation(s)
- Taro Iwamoto
- Division of Rheumatology & Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA
| | - Timothy B Niewold
- Division of Rheumatology & Department of Immunology, Mayo Clinic, Rochester, MN 55905, USA.
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5
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Keire PA, Bressler SL, Lemire JM, Edris B, Rubin BP, Rahmani M, McManus BM, van de Rijn M, Wight TN. A role for versican in the development of leiomyosarcoma. J Biol Chem 2014; 289:34089-103. [PMID: 25320080 DOI: 10.1074/jbc.m114.607168] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Leiomyosarcoma (LMS) is a mesenchymal cancer that occurs throughout the body. Although LMS is easily recognized histopathologically, the cause of the disease remains unknown. Versican, an extracellular matrix proteoglycan, increases in LMS. Microarray analyses of 80 LMSs and 24 leiomyomas showed a significant elevated expression of versican in human LMS versus benign leiomyomas. To explore the importance of versican in this smooth muscle cell tumor, we used versican-directed siRNA to knock down versican expression in a LMS human cell line, SK-LMS-1. Decreased versican expression was accompanied by slower rates of LMS cell proliferation and migration, increased adhesion, and decreased accumulation of the extracellular matrix macromolecule hyaluronan. Addition of purified versican to cells expressing versican siRNA restored cell proliferation to the level of LMS controls, increased the pericellular coat and the retention of hyaluronan, and decreased cell adhesion in a dose-dependent manner. The presence of versican was not only synergistic with hyaluronan in increasing cell proliferation, but the depletion of versican decreased hyaluronan synthase expression and decreased the retention of hyaluronan. When LMS cells stably expressing versican siRNA were injected into nude mice, the resulting tumors displayed significantly less versican and hyaluronan staining, had lower volumes, and had reduced levels of mitosis as compared with controls. Collectively, these results suggest a role for using versican as a point of control in the management and treatment of LMS.
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Affiliation(s)
- Paul A Keire
- From the Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington 98101, Department of Pathology, University of Washington, Seattle, Washington 98195
| | - Steven L Bressler
- From the Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington 98101
| | - Joan M Lemire
- Department of Pathology, University of Washington, Seattle, Washington 98195
| | - Badreddin Edris
- Department of Pathology, Stanford University School of Medicine, Stanford, California 94305, and
| | - Brian P Rubin
- Department of Pathology, University of Washington, Seattle, Washington 98195
| | - Maziar Rahmani
- James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul's Hospital, Room 166, 1081 Burrard Street, Vancouver, British Columbia V6Z 1Y6, Canada, and Department of Pathology and Laboratory Medicine, University of British Columbia, Room G227, 2211 Wesbrook Mall, Vancouver, British Columbia V6T 2A1, Canada
| | - Bruce M McManus
- James Hogg iCAPTURE Centre for Cardiovascular and Pulmonary Research, St. Paul's Hospital, Room 166, 1081 Burrard Street, Vancouver, British Columbia V6Z 1Y6, Canada, and Department of Pathology and Laboratory Medicine, University of British Columbia, Room G227, 2211 Wesbrook Mall, Vancouver, British Columbia V6T 2A1, Canada
| | - Matt van de Rijn
- Department of Pathology, Stanford University School of Medicine, Stanford, California 94305, and
| | - Thomas N Wight
- From the Matrix Biology Program, Benaroya Research Institute at Virginia Mason, Seattle, Washington 98101, Department of Pathology, University of Washington, Seattle, Washington 98195,
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6
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Li P, Fujimoto K, Bourguingnon L, Yukl S, Deeks S, Wong JK. Exogenous and endogenous hyaluronic acid reduces HIV infection of CD4(+) T cells. Immunol Cell Biol 2014; 92:770-80. [PMID: 24957217 PMCID: PMC4205896 DOI: 10.1038/icb.2014.50] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 05/19/2014] [Accepted: 05/27/2014] [Indexed: 01/02/2023]
Abstract
Preventing mucosal transmission of HIV is critical to halting the HIV epidemic. Novel approaches to preventing mucosal transmission are needed. Hyaluronic acid (HA) is a major extracellular component of mucosa and the primary ligand for the cell surface receptor CD44. CD44 enhances HIV infection of CD4(+) T cells, but the role of HA in this process is not clear. To study this, virions were generated with CD44 (HIVCD44) or without CD44 (HIVmock). Exogenous HA reduced HIV infection of unstimulated CD4(+) T cells in a CD44-dependent manner. Conversely, hyaluronidase-mediated reduction of endogenous HA on the cell surface enhanced HIV binding to and infection of unstimulated CD4(+) T cells. Exogenous HA treatment reduced activation of protein kinase C alpha via CD44 on CD4(+) T cells during infection with HIVCD44. These results reveal new roles for HA during the interaction of HIV with CD4(+) T cells that may be relevant to mucosal HIV transmission and could be exploitable as a future strategy to prevent HIV infection.
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Affiliation(s)
- Peilin Li
- San Francisco Veterans Affairs Medical Center, Department of Medicine, San Francisco, CA, USA
- Department of Medicine, University of California, San Francisco (UCSF), San Francisco, CA, USA
| | - Katsuya Fujimoto
- San Francisco Veterans Affairs Medical Center, Department of Medicine, San Francisco, CA, USA
| | - Lilly Bourguingnon
- San Francisco Veterans Affairs Medical Center, Department of Medicine, San Francisco, CA, USA
| | - Steven Yukl
- San Francisco Veterans Affairs Medical Center, Department of Medicine, San Francisco, CA, USA
- Department of Medicine, University of California, San Francisco (UCSF), San Francisco, CA, USA
| | - Steven Deeks
- Department of Medicine, University of California, San Francisco (UCSF), San Francisco, CA, USA
| | - Joseph K Wong
- San Francisco Veterans Affairs Medical Center, Department of Medicine, San Francisco, CA, USA
- Department of Medicine, University of California, San Francisco (UCSF), San Francisco, CA, USA
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7
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Hsieh LTH, Nastase MV, Zeng-Brouwers J, Iozzo RV, Schaefer L. Soluble biglycan as a biomarker of inflammatory renal diseases. Int J Biochem Cell Biol 2014; 54:223-35. [PMID: 25091702 DOI: 10.1016/j.biocel.2014.07.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2014] [Revised: 07/23/2014] [Accepted: 07/24/2014] [Indexed: 12/20/2022]
Abstract
Chronic renal inflammation is often associated with a progressive accumulation of various extracellular matrix constituents, including several members of the small leucine-rich proteoglycan (SLRP) gene family. It is becoming increasingly evident that the matrix-unbound SLRPs strongly regulate the progression of inflammation and fibrosis. Soluble SLRPs are generated either via partial proteolytic processing of collagenous matrices or by de novo synthesis evoked by stress or injury. Liberated SLRPs can then bind to and activate Toll-like receptors, thus modulating downstream inflammatory signaling. Preclinical animal models and human studies have recently identified soluble biglycan as a key initiator and regulator of various inflammatory renal diseases. Biglycan, generated by activated macrophages, can enter the circulation and its elevated levels in plasma and renal parenchyma correlate with unfavorable renal function and outcome. In this review, we will focus on the critical role of soluble biglycan in inflammatory signaling in various renal disorders. Moreover, we will provide new data implicating proinflammatory effects of soluble decorin in unilateral ureteral obstruction. Finally, we will critically evaluate the potential application of soluble biglycan vis-à-vis other SLRPs (decorin, lumican and fibromodulin) as a promising target and novel biomarker of inflammatory renal diseases.
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Affiliation(s)
- Louise Tzung-Harn Hsieh
- Pharmazentrum Frankfurt/ZAFES, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany
| | - Madalina-Viviana Nastase
- Pharmazentrum Frankfurt/ZAFES, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany
| | - Jinyang Zeng-Brouwers
- Pharmazentrum Frankfurt/ZAFES, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany
| | - Renato V Iozzo
- Department of Pathology, Anatomy and Cell Biology, and the Cancer Cell Biology and Signaling Program, Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA 19107, USA
| | - Liliana Schaefer
- Pharmazentrum Frankfurt/ZAFES, Institut für Allgemeine Pharmakologie und Toxikologie, Klinikum der Goethe-Universität Frankfurt am Main, Frankfurt am Main, Germany.
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8
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Goto S, Nakai K, Ito J, Fujii H, Tasaki K, Suzuki T, Fukami K, Hara S, Nishi S. Marked elevation of serum hyaluronan levels in collagenofibrotic glomerulopathy. Intern Med 2014; 53:1801-4. [PMID: 25130114 DOI: 10.2169/internalmedicine.53.2412] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Collagenofibrotic glomerulopathy is a rare glomerular disease characterized by the massive deposition of type III collagen in mesangial and subendothelial spaces. We observed markedly increased serum hyaluronan levels in patients with collagenofibrotic glomerulopathy; levels in three patients were more than 1,000-times greater than the normal upper limit. However, one kidney transplant patient had normal serum hyaluronan levels. We found that serum levels and activities of the enzyme hyaluronidase were normal, and hyaluronan was not markedly deposited in the mesangial or subendothelial spaces. Our findings suggest that serum hyaluronan levels may be a specific diagnostic marker of collagenofibrotic glomerulopathy, and kidney transplantation may alleviate marked increases in serum hyaluronan.
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Affiliation(s)
- Shunsuke Goto
- Division of Nephrology and Kidney Center, Kobe University Graduate School of Medicine, Japan
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9
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Amelinckx A, Castello M, Arrieta-Quintero E, Lee T, Salas N, Hernandez E, Lee RK, Bhattacharya SK, Parel JMA. Laser trabeculoplasty induces changes in the trabecular meshwork glycoproteome: a pilot study. J Proteome Res 2009; 8:3727-36. [PMID: 19432485 PMCID: PMC2732437 DOI: 10.1021/pr900294g] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Laser trabeculoplasty (LT) is a commonly used modality of treatment for glaucoma. The mechanism by which LT lowers the intraocular pressure (IOP) is unknown. With the use of cat eyes, selective laser trabeculoplasty (SLT) with a Q-switched frequency doubled Nd:YAG laser was used to treat the trabecular meshwork (TM). Laser treated TM was then subjected to proteomic analysis for detection of molecular changes and histological analysis for the detection of structural and protein expression patterns. In addition, the protein glycosylation patterns of laser treated and nontreated TM was assessed and differentially glycosylated proteins were proteomically identified. SLT laser treatment to the TM resulted in elevated glycosylation levels compared to nonlasered TM. TM laser treatment also resulted in protein expression levels changes of several proteins. Elevated levels of biglycan, keratocan and prolargin were detected in laser treated TM compared to nonlasered controls. Further investigation is anticipated to provide insight into how glycosylation changes affect TM proteins and TM regulation of aqueous outflow in response to laser trabeculoplasty.
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Affiliation(s)
- Adriana Amelinckx
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Fl
- Ophthalmic Biophysics Center, University of Miami Miller School of Medicine, Miami, Fl
| | - Maria Castello
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Fl
| | - Esdras Arrieta-Quintero
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Fl
- Ophthalmic Biophysics Center, University of Miami Miller School of Medicine, Miami, Fl
| | - Tinthu Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Fl
| | - Nelson Salas
- Ophthalmic Biophysics Center, University of Miami Miller School of Medicine, Miami, Fl
| | - Eleut Hernandez
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Fl
- Ophthalmic Biophysics Center, University of Miami Miller School of Medicine, Miami, Fl
| | - Richard K. Lee
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Fl
| | | | - Jean-Marie A Parel
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Fl
- Ophthalmic Biophysics Center, University of Miami Miller School of Medicine, Miami, Fl
- Vision CRC, Sydney, Australia
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