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Wang D, Ferrell N. Transglutaminase-mediated stiffening of the glomerular basement membrane mitigates pressure-induced reductions in molecular sieving coefficient by reducing compression. Matrix Biol 2024; 130:47-55. [PMID: 38723871 DOI: 10.1016/j.matbio.2024.05.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 06/03/2024]
Abstract
Proteinuria, the presence of high molecular weight proteins in the urine, is a primary indicator of chronic kidney disease. Proteinuria results from increased molecular permeability of the glomerular filtration barrier combined with saturation or defects in tubular protein reabsorption. Any solute that passes into the glomerular filtrate traverses the glomerular endothelium, the glomerular basement membrane, and the podocyte slit diaphragm. Damage to any layer of the filter has reciprocal effects on other layers to increase glomerular permeability. The GBM is thought to act as a compressible ultrafilter that has increased molecular selectivity with increased pressure due to compression that reduced the porosity of the GBM with increased pressure. In multiple forms of chronic kidney disease, crosslinking enzymes are upregulated and may act to increase GBM stiffness. Here we show that enzymatically crosslinking porcine GBM with transglutaminase increases the stiffness of the GBM and mitigates pressure-dependent reductions in molecular sieving coefficient. This was modeled mathematically using a modified membrane transport model accounting for GBM compression. Changes in the mechanical properties of the GBM may contribute to proteinuria through pressure-dependent effects on GBM porosity.
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Affiliation(s)
- Dan Wang
- Department of Internal Medicine, Division of Nephrology, The Ohio State University Wexner Medical Center, 1664 Neil Ave. 4th Floor, Suite 4100, Columbus, OH 43201, United States
| | - Nicholas Ferrell
- Department of Internal Medicine, Division of Nephrology, The Ohio State University Wexner Medical Center, 1664 Neil Ave. 4th Floor, Suite 4100, Columbus, OH 43201, United States.
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2
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Zeng R, Zhang D, Zhang J, Pan Y, Liu X, Qi Q, Xu J, Xu C, Shi S, Wang J, Liu T, Dong L. Targeting lysyl oxidase like 2 attenuates OVA-induced airway remodeling partly via the AKT signaling pathway. Respir Res 2024; 25:230. [PMID: 38824593 PMCID: PMC11144323 DOI: 10.1186/s12931-024-02811-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 04/12/2024] [Indexed: 06/03/2024] Open
Abstract
BACKGROUND Airway epithelium is an important component of airway structure and the initiator of airway remodeling in asthma. The changes of extracellular matrix (ECM), such as collagen deposition and structural disturbance, are typical pathological features of airway remodeling. Thus, identifying key mediators that derived from airway epithelium and capable of modulating ECM may provide valuable insights for targeted therapy of asthma. METHODS The datasets from Gene Expression Omnibus database were analyzed to screen differentially expressed genes in airway epithelium of asthma. We collected bronchoscopic biopsies and serum samples from asthmatic and healthy subjects to assess lysyl oxidase like 2 (LOXL2) expression. RNA sequencing and various experiments were performed to determine the influences of LOXL2 knockdown in ovalbumin (OVA)-induced mouse models. The roles and mechanisms of LOXL2 in bronchial epithelial cells were explored using LOXL2 small interfering RNA, overexpression plasmid and AKT inhibitor. RESULTS Both bioinformatics analysis and further experiments revealed that LOXL2 is highly expressed in airway epithelium of asthmatics. In vivo, LOXL2 knockdown significantly inhibited OVA-induced ECM deposition and epithelial-mesenchymal transition (EMT) in mice. In vitro, the transfection experiments on 16HBE cells demonstrated that LOXL2 overexpression increases the expression of N-cadherin and fibronectin and reduces the expression of E-cadherin. Conversely, after silencing LOXL2, the expression of E-cadherin is up-regulated. In addition, the remodeling and EMT process that induced by transforming growth factor-β1 could be enhanced and weakened after LOXL2 overexpression and silencing in 16HBE cells. Combining the RNA sequencing of mouse lung tissues and experiments in vitro, LOXL2 was involved in the regulation of AKT signaling pathway. Moreover, the treatment with AKT inhibitor in vitro partially alleviated the consequences associated with LOXL2 overexpression. CONCLUSIONS Taken together, the results demonstrated that epithelial LOXL2 plays a role in asthmatic airway remodeling partly via the AKT signaling pathway and highlighted the potential of LOXL2 as a therapeutic target for airway remodeling in asthma.
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Affiliation(s)
- Rong Zeng
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Dong Zhang
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Jintao Zhang
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Yun Pan
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China
| | - Xiaofei Liu
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Qian Qi
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Jiawei Xu
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China
| | - Changjuan Xu
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Shuochuan Shi
- Department of Respiratory, Shandong Qianfoshan Hospital, School of Clinical and Basic Medical Sciences, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Junfei Wang
- Department of Respiratory and Critical Care Medicine, Qilu hospital of Shandong University, Jinan, China
| | - Tian Liu
- Department of Respiratory and Critical Care Medicine, Qilu hospital of Shandong University, Jinan, China
| | - Liang Dong
- Department of Respiratory, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan, China.
- Department of Respiratory, The First Affiliated Hospital of Shandong First Medical University, Shandong Institute of Respiratory Diseases, Jinan, China.
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3
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Wang L, Jiang W, Zhao S, Xie D, Chen Q, Zhao Q, Wu H, Luo J, Yang L. Sorafenib inhibits ossification of the posterior longitudinal ligament by blocking LOXL2-mediated vascularization. Bone Res 2024; 12:24. [PMID: 38594260 PMCID: PMC11004159 DOI: 10.1038/s41413-024-00327-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 03/10/2024] [Accepted: 03/16/2024] [Indexed: 04/11/2024] Open
Abstract
Ossification of the Posterior Longitudinal Ligament (OPLL) is a degenerative hyperostosis disease characterized by the transformation of the soft and elastic vertebral ligament into bone, resulting in limited spinal mobility and nerve compression. Employing both bulk and single-cell RNA sequencing, we elucidate the molecular characteristics, cellular components, and their evolution during the OPLL process at a single-cell resolution, and validate these findings in clinical samples. This study also uncovers the capability of ligament stem cells to exhibit endothelial cell-like phenotypes in vitro and in vivo. Notably, our study identifies LOXL2 as a key regulator in this process. Through gain-and loss-of-function studies, we elucidate the role of LOXL2 in the endothelial-like differentiation of ligament cells. It acts via the HIF1A pathway, promoting the secretion of downstream VEGFA and PDGF-BB. This function is not related to the enzymatic activity of LOXL2. Furthermore, we identify sorafenib, a broad-spectrum tyrosine kinase inhibitor, as an effective suppressor of LOXL2-mediated vascular morphogenesis. By disrupting the coupling between vascularization and osteogenesis, sorafenib demonstrates significant inhibition of OPLL progression in both BMP-induced and enpp1 deficiency-induced animal models while having no discernible effect on normal bone mass. These findings underscore the potential of sorafenib as a therapeutic intervention for OPLL.
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Affiliation(s)
- Longqing Wang
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, PR China
| | - Wenhao Jiang
- Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, PR China
| | - Siyuan Zhao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, PR China
| | - Dong Xie
- Department of Orthopaedics, No. 905 Hospital of PLA Navy, Shanghai, PR China
| | - Qing Chen
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, PR China
| | - Qi Zhao
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, PR China
| | - Hao Wu
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, PR China
| | - Jian Luo
- Yangzhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), Tongji University School of Medicine, Shanghai, PR China.
| | - Lili Yang
- Spine Center, Department of Orthopaedics, Shanghai Changzheng Hospital, Second Affiliated Hospital of Naval Medical University, Shanghai, 200003, PR China.
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4
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Poe A, Martinez Yus M, Wang H, Santhanam L. Lysyl oxidase like-2 in fibrosis and cardiovascular disease. Am J Physiol Cell Physiol 2023; 325:C694-C707. [PMID: 37458436 PMCID: PMC10635644 DOI: 10.1152/ajpcell.00176.2023] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 07/12/2023] [Accepted: 07/12/2023] [Indexed: 09/01/2023]
Abstract
Fibrosis is an important and essential reparative response to injury that, if left uncontrolled, results in the excessive synthesis, deposition, remodeling, and stiffening of the extracellular matrix, which is deleterious to organ function. Thus, the sustained activation of enzymes that catalyze matrix remodeling and cross linking is a fundamental step in the pathology of fibrotic diseases. Recent studies have implicated the amine oxidase lysyl oxidase like-2 (LOXL2) in this process and established significantly elevated expression of LOXL2 as a key component of profibrotic conditions in several organ systems. Understanding the relationship between LOXL2 and fibrosis as well as the mechanisms behind these relationships can offer significant insights for developing novel therapies. Here, we summarize the key findings that demonstrate the link between LOXL2 and fibrosis and inflammation, examine current therapeutics targeting LOXL2 for the treatment of fibrosis, and discuss future directions for experiments and biomedical engineering.
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Affiliation(s)
- Alan Poe
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, United States
| | - Marta Martinez Yus
- Department of Anesthesiology and CCM, Johns Hopkins University, Baltimore, Maryland, United States
| | - Huilei Wang
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, United States
| | - Lakshmi Santhanam
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, Maryland, United States
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, United States
- Department of Anesthesiology and CCM, Johns Hopkins University, Baltimore, Maryland, United States
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5
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Chen YC, Waghorn PA, Rosales IA, Arora G, Erstad DJ, Rotile NJ, Jones CM, Ferreira DS, Wei L, Martinez RV, Schlerman FJ, Wellen J, Fuchs BC, Colvin RB, Ay I, Caravan P. Molecular MR Imaging of Renal Fibrogenesis in Mice. J Am Soc Nephrol 2023; 34:1159-1165. [PMID: 37094382 PMCID: PMC10356170 DOI: 10.1681/asn.0000000000000148] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 03/12/2023] [Indexed: 04/26/2023] Open
Abstract
BACKGROUND In most CKDs, lysyl oxidase oxidation of collagen forms allysine side chains, which then form stable crosslinks. We hypothesized that MRI with the allysine-targeted probe Gd-oxyamine (OA) could be used to measure this process and noninvasively detect renal fibrosis. METHODS Two mouse models were used: hereditary nephritis in Col4a3-deficient mice (Alport model) and a glomerulonephritis model, nephrotoxic nephritis (NTN). MRI measured the difference in kidney relaxation rate, ΔR1, after intravenous Gd-OA administration. Renal tissue was collected for biochemical and histological analysis. RESULTS ΔR1 was increased in the renal cortex of NTN mice and in both the cortex and the medulla of Alport mice. Ex vivo tissue analyses showed increased collagen and Gd-OA levels in fibrotic renal tissues and a high correlation between tissue collagen and ΔR1. CONCLUSIONS Magnetic resonance imaging using Gd-OA is potentially a valuable tool for detecting and staging renal fibrogenesis.
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Affiliation(s)
- Yin-Ching Chen
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Philip A. Waghorn
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Ivy A. Rosales
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Gunisha Arora
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Derek J. Erstad
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Nicholas J. Rotile
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Chloe M. Jones
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Diego S. Ferreira
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
| | - Lan Wei
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Robert V.P. Martinez
- Inflammation and Immunology Research Unit, Pfizer Inc., Cambridge, Massachusetts
| | | | - Jeremy Wellen
- Early Clinical Development, Pfizer Inc., Cambridge, Massachusetts
| | - Bryan C. Fuchs
- Division of Surgical Oncology, Massachusetts General Hospital Cancer Center and Harvard Medical School, Boston, Massachusetts
| | - Robert B. Colvin
- Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ilknur Ay
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
| | - Peter Caravan
- Athinoula A. Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts
- Institute for Innovation in Imaging, Massachusetts General Hospital, Boston, Massachusetts
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Yamamura Y, Sakai N, Iwata Y, Lagares D, Hara A, Kitajima S, Toyama T, Miyagawa T, Ogura H, Sato K, Oshima M, Nakagawa S, Tamai A, Horikoshi K, Matsuno T, Yamamoto N, Hayashi D, Toyota Y, Kaikoi D, Shimizu M, Tager AM, Wada T. Myocardin-related transcription factor contributes to renal fibrosis through the regulation of extracellular microenvironment surrounding fibroblasts. FASEB J 2023; 37:e23005. [PMID: 37289107 DOI: 10.1096/fj.202201870r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 05/08/2023] [Accepted: 05/17/2023] [Indexed: 06/09/2023]
Abstract
Fibroblast accumulation and extracellular matrix (ECM) deposition are common critical steps for the progression of organ fibrosis, but the precise molecular mechanisms remain to be fully investigated. We have previously demonstrated that lysophosphatidic acid contributes to organ fibrosis through the production of connective tissue growth factor (CTGF) via actin cytoskeleton-dependent signaling, myocardin-related transcription factor family (MRTF) consisting of MRTF-A and MRTF-B-serum response factor (SRF) pathway. In this study, we investigated the role of the MRTF-SRF pathway in the development of renal fibrosis, focusing on the regulation of ECM-focal adhesions (FA) in renal fibroblasts. Here we showed that both MRTF-A and -B were required for the expressions of ECM-related molecules such as lysyl oxidase family members, type I procollagen and fibronectin in response to transforming growth factor (TGF)-β1 . TGF-β1 -MRTF-SRF pathway induced the expressions of various components of FA such as integrin α subunits (αv , α2 , α11 ) and β subunits (β1 , β3 , β5 ) as well as integrin-linked kinase (ILK). On the other hand, the blockade of ILK suppressed TGF-β1 -induced MRTF-SRF transcriptional activity, indicating a mutual relationship between MRTF-SRF and FA. Myofibroblast differentiation along with CTGF expression was also dependent on MRTF-SRF and FA components. Finally, global MRTF-A deficient and inducible fibroblast-specific MRTF-B deficient mice (MRTF-AKO BiFBKO mice) are protected from renal fibrosis with adenine administration. Renal expressions of ECM-FA components and CTGF as well as myofibroblast accumulation were suppressed in MRTF-AKO BiFBKO mice. These results suggest that the MRTF-SRF pathway might be a therapeutic target for renal fibrosis through the regulation of components forming ECM-FA in fibroblasts.
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Affiliation(s)
- Yuta Yamamura
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Norihiko Sakai
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
- Division of Blood Purification, Kanazawa University Hospital, Kanazawa, Japan
| | - Yasunori Iwata
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
- Division of Infection Control, Kanazawa University Hospital, Kanazawa, Japan
| | - David Lagares
- Fibrosis Research Center, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Akinori Hara
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Shinji Kitajima
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
- Division of Infection Control, Kanazawa University Hospital, Kanazawa, Japan
| | - Tadashi Toyama
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Taro Miyagawa
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Hisayuki Ogura
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Koichi Sato
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Megumi Oshima
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Shiori Nakagawa
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Akira Tamai
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Keisuke Horikoshi
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Takahiro Matsuno
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Naoki Yamamoto
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Daiki Hayashi
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Yoshitada Toyota
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Daichi Kaikoi
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Miho Shimizu
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
| | - Andrew M Tager
- Center for Immunology and Inflammatory Diseases, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
- Division of Rheumatology, Allergy and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Takashi Wada
- Department of Nephrology and Laboratory Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kanazawa, Japan
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Type IV Collagen and SOX9 Are Molecular Targets of BET Inhibition in Experimental Glomerulosclerosis. Int J Mol Sci 2022; 24:ijms24010486. [PMID: 36613933 PMCID: PMC9820124 DOI: 10.3390/ijms24010486] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 12/14/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022] Open
Abstract
Progressive glomerulonephritis (GN) is characterized by an excessive accumulation of extracellular (ECM) proteins, mainly type IV collagen (COLIV), in the glomerulus leading to glomerulosclerosis. The current therapeutic approach to GN is suboptimal. Epigenetic drugs could be novel therapeutic options for human disease. Among these drugs, bromodomain and extra-terminal domain (BET) inhibitors (iBETs) have shown beneficial effects in experimental kidney disease and fibrotic disorders. Sex-determining region Y-box 9 (SOX9) is a transcription factor involved in regulating proliferation, migration, and regeneration, but its role in kidney fibrosis is still unclear. We investigated whether iBETs could regulate ECM accumulation in experimental GN and evaluated the role of SOX9 in this process. For this purpose, we tested the iBET JQ1 in mice with anti-glomerular basement membrane nephritis induced by nephrotoxic serum (NTS). In NTS-injected mice, JQ1 treatment reduced glomerular ECM deposition, mainly by inhibiting glomerular COLIV accumulation and Col4a3 gene overexpression. Moreover, chromatin immunoprecipitation assays demonstrated that JQ1 inhibited the recruitment and binding of BRD4 to the Col4a3 promoter and reduced its transcription. Active SOX9 was found in the nuclei of glomerular cells of NTS-injured kidneys, mainly in COLIV-stained regions. JQ1 treatment blocked SOX9 nuclear translocation in injured kidneys. Moreover, in vitro JQ1 blocked TGF-β1-induced SOX9 activation and ECM production in cultured mesangial cells. Additionally, SOX9 gene silencing inhibited ECM production, including COLIV production. Our results demonstrated that JQ1 inhibited SOX9/COLIV, to reduce experimental glomerulosclerosis, supporting further research of iBET as a potential therapeutic option in progressive glomerulosclerosis.
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Huang L, Shi Y, Hu J, Ding J, Guo Z, Yu B. Integrated analysis of mRNA-seq and miRNA-seq reveals the potential roles of Egr1, Rxra and Max in kidney stone disease. Urolithiasis 2022; 51:13. [PMID: 36484839 DOI: 10.1007/s00240-022-01384-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 11/16/2022] [Indexed: 12/13/2022]
Abstract
Nephrolithiasis is one of the most common and frequent urologic diseases worldwide. The molecular mechanism of kidney stone formation is complex and remains to be illustrated. Transcript factors (TFs) that influenced the expression pattern of multiple genes, as well as microRNAs, important posttranscriptional modulators, play vital roles in this disease progression. Datasets of nephrolithiasis mice and kidney stone patients were acquired from Gene Expression Omnibus repository. TFs were predicted from differentially expressed genes by RcisTarget. The target genes of differential-expressed microRNAs were predicted by miRWalk. MicroRNA-mRNA network and PPI network were constructed. Functional enrichment analysis was performed via Metascape and Cytoscape identified hub genes. The assay of quantitative real-time PCR (q-PCR) and immunochemistry and the datasets of oxalate diet-induced nephrolithiasis mice kidneys and kidney stone patients' samples were utilized to validate the bioinformatic results. We identified three potential key TFs (Egr1, Rxra, Max), which can be modulated by miR-181a-5p, miR-7b-3p and miR-22-3p, respectively. The TFs and their regulated hub genes influenced the progression of nephrolithiasis via altering the expression of genes enriched in the functions of fibrosis, cell proliferation and molecular transportation and metabolism. The expression changes of transcription factors were consistent in q-PCR and immunochemistry results. For regulated hub genes, they showed consistent expression changes in oxalate diet-induced nephrolithiasis mice model and human kidneys with stones. The identified and verified three TFs, which may be modulated by microRNAs in nephrolithiasis disease progression, mainly influence biological processes responding to fibrosis, proliferation and molecular transportation and metabolism. The transcript influence showed consistency in multiple nephrolithiasis mice models and kidney stone patients.
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Affiliation(s)
- Linxi Huang
- Department of Nephrology, Changhai Hospital, Naval Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, People's Republic of China
- Department of Cell Biology, Naval Medical University (Second Military Medical University), 800 Xiangyin Road, Shanghai, 200433, People's Republic of China
| | - Yuxuan Shi
- Department of Nephrology, Changhai Hospital, Naval Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, People's Republic of China
| | - Junjie Hu
- Department of Cell Biology, Naval Medical University (Second Military Medical University), 800 Xiangyin Road, Shanghai, 200433, People's Republic of China
| | - Jiarong Ding
- Department of Nephrology, Changhai Hospital, Naval Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, People's Republic of China
| | - Zhiyong Guo
- Department of Nephrology, Changhai Hospital, Naval Medical University (Second Military Medical University), 168 Changhai Road, Shanghai, 200433, People's Republic of China.
| | - Bing Yu
- Department of Cell Biology, Naval Medical University (Second Military Medical University), 800 Xiangyin Road, Shanghai, 200433, People's Republic of China.
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9
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Brashear SE, Wohlgemuth RP, Hu LY, Jbeily EH, Christiansen BA, Smith LR. Collagen cross-links scale with passive stiffness in dystrophic mouse muscles, but are not altered with administration of a lysyl oxidase inhibitor. PLoS One 2022; 17:e0271776. [PMID: 36302059 PMCID: PMC9612445 DOI: 10.1371/journal.pone.0271776] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Accepted: 10/10/2022] [Indexed: 11/19/2022] Open
Abstract
In Duchenne muscular dystrophy (DMD), a lack of functional dystrophin leads to myofiber instability and progressive muscle damage that results in fibrosis. While fibrosis is primarily characterized by an accumulation of extracellular matrix (ECM) components, there are changes in ECM architecture during fibrosis that relate more closely to functional muscle stiffness. One of these architectural changes in dystrophic muscle is collagen cross-linking, which has been shown to increase the passive muscle stiffness in models of fibrosis including the mdx mouse, a model of DMD. We tested whether the intraperitoneal injections of beta-aminopropionitrile (BAPN), an inhibitor of the cross-linking enzyme lysyl oxidase, would reduce collagen cross-linking and passive stiffness in young and adult mdx mice compared to saline-injected controls. We found no significant differences between BAPN treated and saline treated mice in collagen cross-linking and stiffness parameters. However, we observed that while collagen cross-linking and passive stiffness scaled positively in dystrophic muscles, collagen fiber alignment scaled with passive stiffness distinctly between muscles. We also observed that the dystrophic diaphragm showed the most dramatic fibrosis in terms of collagen content, cross-linking, and stiffness. Overall, we show that while BAPN was not effective at reducing collagen cross-linking, the positive association between collagen cross-linking and stiffness in dystrophic muscles still show cross-linking as a viable target for reducing passive muscle stiffness in DMD or other fibrotic muscle conditions.
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Affiliation(s)
- Sarah E. Brashear
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, Davis, California, United States of America
| | - Ross P. Wohlgemuth
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, Davis, California, United States of America
| | - Lin-Ya Hu
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, Davis, California, United States of America
| | - Elias H. Jbeily
- Department of Orthopaedic Surgery, University of California Davis, Sacramento, California, United States of America
| | - Blaine A. Christiansen
- Department of Orthopaedic Surgery, University of California Davis, Sacramento, California, United States of America
| | - Lucas R. Smith
- Department of Neurobiology, Physiology, and Behavior, University of California Davis, Davis, California, United States of America
- Department of Physical Medicine and Rehabilitation, University of California Davis, Sacramento, California, United States of America
- * E-mail:
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10
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Yang J, Liu Z. Mechanistic Pathogenesis of Endothelial Dysfunction in Diabetic Nephropathy and Retinopathy. Front Endocrinol (Lausanne) 2022; 13:816400. [PMID: 35692405 PMCID: PMC9174994 DOI: 10.3389/fendo.2022.816400] [Citation(s) in RCA: 43] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 03/28/2022] [Indexed: 12/15/2022] Open
Abstract
Diabetic nephropathy (DN) and diabetic retinopathy (DR) are microvascular complications of diabetes. Microvascular endothelial cells are thought to be the major targets of hyperglycemic injury. In diabetic microvasculature, the intracellular hyperglycemia causes damages to the vascular endothelium, via multiple pathophysiological process consist of inflammation, endothelial cell crosstalk with podocytes/pericytes and exosomes. In addition, DN and DR diseases development are involved in several critical regulators including the cell adhesion molecules (CAMs), the vascular endothelial growth factor (VEGF) family and the Notch signal. The present review attempts to gain a deeper understanding of the pathogenesis complexities underlying the endothelial dysfunction in diabetes diabetic and retinopathy, contributing to the development of new mechanistic therapeutic strategies against diabetes-induced microvascular endothelial dysfunction.
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Affiliation(s)
- Jing Yang
- Department of Ophthalmology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center For Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
| | - Zhangsuo Liu
- Research Institute of Nephrology, Zhengzhou University, Zhengzhou, China
- Henan Province Research Center For Kidney Disease, Zhengzhou, China
- Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou, China
- Department of Integrated Traditional and Western Nephrology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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11
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Li B, Xian X, Lin X, Huang L, Liang A, Jiang H, Gong Q. Hypoxia Alters the Proteome Profile and Enhances the Angiogenic Potential of Dental Pulp Stem Cell-Derived Exosomes. Biomolecules 2022; 12:biom12040575. [PMID: 35454164 PMCID: PMC9029684 DOI: 10.3390/biom12040575] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 12/12/2022] Open
Abstract
Dental pulp stem cells (DPSCs) and their exosomes (Exos) are effective treatments for regenerative medicine. Hypoxia was confirmed to improve the angiogenic potential of stem cells. However, the angiogenic effect and mechanism of hypoxia-preconditioned DPSC-Exos are poorly understood. We isolated exosomes from DPSCs under normoxia (Nor-Exos) and hypoxia (Hypo-Exos) and added them to human umbilical vein endothelial cells (HUVECs). HUVEC proliferation, migration and angiogenic capacity were assessed by CCK-8, transwell, tube formation assays, qRT-PCR and Western blot. iTRAQ-based proteomics and bioinformatic analysis were performed to investigate proteome profile differences between Nor-Exos and Hypo-Exos. Western blot, immunofluorescence and immunohistochemistry were used to detect the expression of lysyl oxidase-like 2 (LOXL2) in vitro and in vivo. Finally, we silenced LOXL2 in HUVECs and rescued tube formation with Hypo-Exos. Hypo-Exos enhanced HUVEC proliferation, migration and tube formation in vitro superior to Nor-Exos. The proteomics analysis identified 79 proteins with significantly different expression in Hypo-Exos, among which LOXL2 was verified as being upregulated in hypoxia-preconditioned DPSCs, Hypo-Exos, and inflamed dental pulp. Hypo-Exos partially rescued the inhibitory influence of LOXL2 silence on HUVEC tube formation. In conclusion, hypoxia enhanced the angiogenic potential of DPSCs-Exos and partially altered their proteome profile. LOXL2 is likely involved in Hypo-Exos mediated angiogenesis.
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Affiliation(s)
- Baoyu Li
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; (B.L.); (X.L.); (L.H.); (A.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Xuehong Xian
- Department of Stomatology, The Sixth Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510655, China;
- Foshan Stomatological Hospital, Foshan University, Foshan 528000, China
| | - Xinwei Lin
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; (B.L.); (X.L.); (L.H.); (A.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Luo Huang
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; (B.L.); (X.L.); (L.H.); (A.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Ailin Liang
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; (B.L.); (X.L.); (L.H.); (A.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
| | - Hongwei Jiang
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; (B.L.); (X.L.); (L.H.); (A.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
- Correspondence: (H.J.); (Q.G.)
| | - Qimei Gong
- Hospital of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China; (B.L.); (X.L.); (L.H.); (A.L.)
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
- Guanghua School of Stomatology, Sun Yat-Sen University, Guangzhou 510055, China
- Correspondence: (H.J.); (Q.G.)
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12
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Saifi MA, Shaikh AS, Kaki VR, Godugu C. Disulfiram prevents collagen crosslinking and inhibits renal fibrosis by inhibiting lysyl oxidase enzymes. J Cell Physiol 2022; 237:2516-2527. [PMID: 35285015 DOI: 10.1002/jcp.30717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 02/17/2022] [Accepted: 02/24/2022] [Indexed: 01/28/2023]
Abstract
Chronic kidney disease is one of the major health burdens affecting a considerable number of people worldwide. The aberrant regulation of lysyl oxidase (LOX) family of enzymes results in establishment of dense extracellular matrix (ECM). Since, LOX enzymes need copper (Cu) for their proper catalytic activity; the present study investigated the efficacy of a copper chelator, disulfiram (DSF) in renal fibrosis. Antifibrotic activity of DSF was investigated in kidney epithelial cells stimulated by transforming growth factor-β1 (5 ng/ml) as well as in two animal models. The renal injury was induced in animals by unilateral ureteral obstruction and folic acid administration (250 mg/kg). The DSF (3 and 10 mg/kg, every 3rd day) and standard LOX inhibitor, β-aminopropionitrile (BAPN, 100 mg/kg, daily) administration was started on day 0 and continued till the day of sacrifice. DSF was found to be a potent LOX/LOXL2 inhibitor to reduce crosslinking of collagen fibrils leading to reduction in the collagen deposition. In addition, the DSF was demonstrated to inhibit epithelial-mesenchymal transition in the tubular cells and fibrotic kidneys. Our results suggested that DSF, being a clinically available drug could be translated to clinics for its potent antifibrotic activity due to its inhibitory effect on LOX proteins.
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Affiliation(s)
- Mohd Aslam Saifi
- Department of Biological Sciences (Regulatory Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Arbaz Sujat Shaikh
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Venkata Rao Kaki
- Department of Chemical Sciences, National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, India
| | - Chandraiah Godugu
- Department of Biological Sciences (Regulatory Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
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13
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Xie C, Tang B, Wu K, Meng Q, Wang F. Increased serum LOXL2 concentration in pelvic inflammatory disease with pelvic adhesion. BMC Womens Health 2022; 22:59. [PMID: 35246120 PMCID: PMC8896148 DOI: 10.1186/s12905-022-01640-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 02/25/2022] [Indexed: 11/28/2022] Open
Abstract
Background Lysyl oxidase-like 2 (LOXL2) belongs to a family of the LOX secretory enzyme, which involves the cross-linkage of extracellular matrix (ECM) proteins. Here, we aimed to analyze the correlation between serum LOXL2 and pelvic adhesion in chronic pelvic inflammatory disease (PID). Methods A total of 143 patients with PID and 130 healthy controls were included in this study. The serum levels of LOXL2 were measured using enzyme-linked immunosorbent assay (ELISA) kits. The patients were divided into non-adhesion group (102 cases) and adhesion group (41 cases). Results It was found that the serum level of LOXL2 expression was elevated in PID patients compared with healthy controls, and was elevated in PID patients with pelvic adhesion compared to patients without adhesion. In all PID patients, serum LOXL2 level was positively correlated with matrix metalloproteinases-9 (MMP-9), transforming growth factor-β (TGF-β1), whole blood viscosity (WBV) at low shear rate (LSR), WBV at high shear rate (HSR), and hematocrit (HcT). Multivariate logistic regression analysis showed that serum LOXL2 level was an independent risk factor for pelvic adhesion in PID patients (OR = 1.058; 95% CI = 1.030–1.086, P < 0.001). Conclusions Serum LOXL2 level not only predicts the presence of PID, but serum LOXL2 concentration is also associated with the presence of pelvic adhesions.
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Affiliation(s)
- Chan Xie
- Department of TCM Gynecology, Shanghai Pudong New District Gongli Hospital, Second Military Medical University, No.219 Miaopu Road, Pudong New District, Shanghai, 200135, People's Republic of China
| | - Bixin Tang
- Department of TCM Gynecology, Shanghai Pudong New District Gongli Hospital, Second Military Medical University, No.219 Miaopu Road, Pudong New District, Shanghai, 200135, People's Republic of China.
| | - Kunlun Wu
- Department of TCM Gynecology, Shanghai Pudong New District Gongli Hospital, Second Military Medical University, No.219 Miaopu Road, Pudong New District, Shanghai, 200135, People's Republic of China
| | - Qingyi Meng
- Department of TCM Gynecology, Shanghai Pudong New District Gongli Hospital, Second Military Medical University, No.219 Miaopu Road, Pudong New District, Shanghai, 200135, People's Republic of China
| | - Fang Wang
- Department of TCM Gynecology, Shanghai Pudong New District Gongli Hospital, Second Military Medical University, No.219 Miaopu Road, Pudong New District, Shanghai, 200135, People's Republic of China
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14
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Cosgrove D, Madison J. Molecular and Cellular Mechanisms Underlying the Initiation and Progression of Alport Glomerular Pathology. Front Med (Lausanne) 2022; 9:846152. [PMID: 35223933 PMCID: PMC8863674 DOI: 10.3389/fmed.2022.846152] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 01/17/2022] [Indexed: 01/11/2023] Open
Abstract
Alport syndrome results from a myriad of variants in the COL4A3, COL4A4, or COL4A5 genes that encode type IV (basement membrane) collagens. Unlike type IV collagen α1(IV)2α2(IV)1 heterotrimers, which are ubiquitous in basement membranes, α3/α4/α5 have a limited tissue distribution. The absence of these basement membrane networks causes pathologies in some, but not all these tissues. Primarily the kidney glomerulus, the stria vascularis of the inner ear, the lens, and the retina as well as a rare link with aortic aneurisms. Defects in the glomerular basement membranes results in delayed onset and progressive focal segmental glomerulosclerosis ultimately requiring the patient to undergo dialysis and if accessible, kidney transplant. The lifespan of patients with Alport syndrome is ultimately significantly shortened. This review addresses the consequences of the altered glomerular basement membrane composition in Alport syndrome with specific emphasis on the mechanisms underlying initiation and progression of glomerular pathology.
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Affiliation(s)
| | - Jacob Madison
- Boys Town National Research Hospital, Omaha, NE, United States
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15
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Matrix Metalloproteinase-10 in Kidney Injury Repair and Disease. Int J Mol Sci 2022; 23:ijms23042131. [PMID: 35216251 PMCID: PMC8877639 DOI: 10.3390/ijms23042131] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Revised: 02/08/2022] [Accepted: 02/10/2022] [Indexed: 12/13/2022] Open
Abstract
Matrix metalloproteinase-10 (MMP-10) is a zinc-dependent endopeptidase with the ability to degrade a broad spectrum of extracellular matrices and other protein substrates. The expression of MMP-10 is induced in acute kidney injury (AKI) and chronic kidney disease (CKD), as well as in renal cell carcinoma (RCC). During the different stages of kidney injury, MMP-10 may exert distinct functions by cleaving various bioactive substrates including heparin-binding epidermal growth factor (HB-EGF), zonula occludens-1 (ZO-1), and pro-MMP-1, -7, -8, -9, -10, -13. Functionally, MMP-10 is reno-protective in AKI by promoting HB-EGF-mediated tubular repair and regeneration, whereas it aggravates podocyte dysfunction and proteinuria by disrupting glomerular filtration integrity via degrading ZO-1. MMP-10 is also involved in cancerous invasion and emerges as a promising therapeutic target in patients with RCC. As a secreted protein, MMP-10 could be detected in the circulation and presents an inverse correlation with renal function. Due to the structural similarities between MMP-10 and the other MMPs, development of specific inhibitors targeting MMP-10 is challenging. In this review, we summarize our current understanding of the role of MMP-10 in kidney diseases and discuss the potential mechanisms of its actions.
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16
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Perryman L, Gray SG. Fibrosis in Mesothelioma: Potential Role of Lysyl Oxidases. Cancers (Basel) 2022; 14:981. [PMID: 35205728 PMCID: PMC8870010 DOI: 10.3390/cancers14040981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 12/13/2022] Open
Abstract
Immunotherapies (such as checkpoint inhibitors) and standard chemotherapies (such as cisplatin) have limitations in the successful treatment of malignant pleural mesothelioma (MPM). Fibrosis is the accumulation of collagen in the extracellular matrix (ECM) of tissues, making them denser than that of healthy tissues and thereby affecting drug delivery and immune cell infiltration. Moreover, fibrosis severely affects the patient's breathing and quality of life. The production of collagen and its assembly is highly regulated by various enzymes such as lysyl oxidases. Many solid tumors aberrantly express the family of lysyl oxidases (LOX/LOXL). This review examines how LOX/LOXLs were found to be dysregulated in noncancerous and cancerous settings, discusses their roles in solid tumor fibrosis and pathogenesis and explores the role of fibrosis in the development and poor clinical outcomes of patients with MPM. We examine the current preclinical status of drugs targeting LOX/LOXLs and how the incorporation of such drugs may have therapeutic benefits in the treatment and management of patients with MPM.
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Affiliation(s)
- Lara Perryman
- Drug Discovery Department, Pharmaxis Ltd., Sydney, NSW 2086, Australia;
| | - Steven G. Gray
- Thoracic Oncology, Labmed Directorate, St James’s Hospital, D08 RX0X Dublin, Ireland
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17
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Ramis J, Middlewick R, Pappalardo F, Cairns JT, Stewart ID, John AE, Naveed SUN, Krishnan R, Miller S, Shaw DE, Brightling CE, Buttery L, Rose F, Jenkins G, Johnson SR, Tatler AL. Lysyl oxidase-like 2 is increased in asthma and contributes to asthmatic airway remodelling. Eur Respir J 2022; 60:13993003.04361-2020. [PMID: 34996828 PMCID: PMC9260127 DOI: 10.1183/13993003.04361-2020] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 11/08/2021] [Indexed: 12/04/2022]
Abstract
Background Airway smooth muscle (ASM) cells are fundamental to asthma pathogenesis, influencing bronchoconstriction, airway hyperresponsiveness and airway remodelling. The extracellular matrix (ECM) can influence tissue remodelling pathways; however, to date no study has investigated the effect of ASM ECM stiffness and cross-linking on the development of asthmatic airway remodelling. We hypothesised that transforming growth factor-β (TGF-β) activation by ASM cells is influenced by ECM in asthma and sought to investigate the mechanisms involved. Methods This study combines in vitro and in vivo approaches: human ASM cells were used in vitro to investigate basal TGF-β activation and expression of ECM cross-linking enzymes. Human bronchial biopsies from asthmatic and nonasthmatic donors were used to confirm lysyl oxidase like 2 (LOXL2) expression in ASM. A chronic ovalbumin (OVA) model of asthma was used to study the effect of LOXL2 inhibition on airway remodelling. Results We found that asthmatic ASM cells activated more TGF-β basally than nonasthmatic controls and that diseased cell-derived ECM influences levels of TGF-β activated. Our data demonstrate that the ECM cross-linking enzyme LOXL2 is increased in asthmatic ASM cells and in bronchial biopsies. Crucially, we show that LOXL2 inhibition reduces ECM stiffness and TGF-β activation in vitro, and can reduce subepithelial collagen deposition and ASM thickness, two features of airway remodelling, in an OVA mouse model of asthma. Conclusion These data are the first to highlight a role for LOXL2 in the development of asthmatic airway remodelling and suggest that LOXL2 inhibition warrants further investigation as a potential therapy to reduce remodelling of the airways in severe asthma. Novel role for matrix cross-linking enzyme LOXL2 in asthmatic airway remodelling: LOXL2 is increased in #asthma but LOXL2 inhibition reduces matrix stiffness in airway smooth muscle cells and reduces remodelling in vivohttps://bit.ly/3FnzGb3
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Affiliation(s)
- Jopeth Ramis
- Biodiscovery Institute, University of Nottingham, UK.,Department of Chemical Engineering, Technological Institute of the Philippines, Philippines
| | - Robert Middlewick
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | | | - Jennifer T Cairns
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Iain D Stewart
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Margaret Turner Warwick Centre for Fibrosing Lung Disease, National Heart and Lung Institute, Imperial College London, UK
| | - Alison E John
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Margaret Turner Warwick Centre for Fibrosing Lung Disease, National Heart and Lung Institute, Imperial College London, UK
| | - Shams-Un-Nisa Naveed
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Institute for Lung Health, Leicester NIHR Biomedical Research Centre, University of Leicester, UK
| | - Ramaswamy Krishnan
- Center for Vascular Biology Research, Beth Israel Deaconess Medical Center, Harvard Medical School, USA
| | - Suzanne Miller
- Biodiscovery Institute, University of Nottingham, UK.,Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Dominick E Shaw
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Christopher E Brightling
- Institute for Lung Health, Leicester NIHR Biomedical Research Centre, University of Leicester, UK
| | - Lee Buttery
- Biodiscovery Institute, University of Nottingham, UK
| | - Felicity Rose
- Biodiscovery Institute, University of Nottingham, UK
| | - Gisli Jenkins
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK.,Margaret Turner Warwick Centre for Fibrosing Lung Disease, National Heart and Lung Institute, Imperial College London, UK
| | - Simon R Johnson
- Biodiscovery Institute, University of Nottingham, UK.,Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
| | - Amanda L Tatler
- Centre for Respiratory Research/ NIHR Biomedical Research Centre, School of Medicine, University of Nottingham, UK
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18
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Namba M, Kobayashi T, Kohno M, Koyano T, Hirose T, Fukushima M, Matsuyama M. Creation of X-linked Alport syndrome rat model with Col4a5 deficiency. Sci Rep 2021; 11:20836. [PMID: 34675305 PMCID: PMC8531394 DOI: 10.1038/s41598-021-00354-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 10/12/2021] [Indexed: 12/31/2022] Open
Abstract
Alport syndrome is an inherited chronic human kidney disease, characterized by glomerular basement membrane abnormalities. This disease is caused by mutations in COL4A3, COL4A4, or COL4A5 gene. The knockout mice for Col4α3, Col4α4, and Col4α5 are developed and well characterized for the study of Alport syndrome. However, disease progression and effects of pharmacological therapy depend on the genetic variability. This model was reliable only to mouse. In this study, we created a novel Alport syndrome rat model utilizing the rGONAD technology, which generated rat with a deletion of the Col4α5 gene. Col4α5 deficient rats showed hematuria, proteinuria, high levels of BUN, Cre, and then died at 18 to 28 weeks of age (Hemizygous mutant males). Histological and ultrastructural analyses displayed the abnormalities including parietal cell hyperplasia, mesangial sclerosis, and interstitial fibrosis. Then, we demonstrated that α3/α4/α5 (IV) and α5/α5/α6 (IV) chains of type IV collagen disrupted in Col4α5 deficient rats. Thus, Col4α5 mutant rat is a reliable candidate for the Alport syndrome model for underlying the mechanism of kidney diseases and further identifying potential therapeutic targets for human renal diseases.
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Affiliation(s)
- Masumi Namba
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Tomoe Kobayashi
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Mayumi Kohno
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Takayuki Koyano
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan
| | - Takuo Hirose
- Division of Nephrology and Endocrinology, Faculty of Medicine, Tohoku Medical and Pharmaceutical University, Sendai, Japan.,Department of Endocrinology and Applied Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Masaki Fukushima
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan.,Shigei Medical Research Hospital, Okayama, Japan
| | - Makoto Matsuyama
- Division of Molecular Genetics, Shigei Medical Research Institute, 2117 Yamada, Minami-ku, Okayama, 701-0202, Japan.
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19
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Kong W, Lyu C, Liao H, Du Y. Collagen crosslinking: effect on structure, mechanics and fibrosis progression. Biomed Mater 2021; 16. [PMID: 34587604 DOI: 10.1088/1748-605x/ac2b79] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 09/29/2021] [Indexed: 02/07/2023]
Abstract
Biophysical properties of extracellular matrix (ECM), such as matrix stiffness, viscoelasticity and matrix fibrous structure, are emerging as important factors that regulate progression of fibrosis and other chronic diseases. The biophysical properties of the ECM can be rapidly and profoundly regulated by crosslinking reactions in enzymatic or non-enzymatic manners, which further alter the cellular responses and drive disease progression. In-depth understandings of crosslinking reactions will be helpful to reveal the underlying mechanisms of fibrosis progression and put forward new therapeutic targets, whereas related reviews are still devoid. Here, we focus on the main crosslinking mechanisms that commonly exist in a plethora of chronic diseases (e.g. fibrosis, cancer, osteoarthritis) and summarize current understandings including the biochemical reaction, the effect on ECM properties, the influence on cellular behaviors, and related studies in disease model establishment. Potential pharmaceutical interventions targeting the crosslinking process and relevant clinical studies are also introduced. Limitations of pharmaceutical development may be due to the lack of systemic investigations related to the influence on crosslinking mechanism from micro to macro level, which are discussed in the last section. We also propose the unclarified questions regarding crosslinking mechanisms and potential challenges in crosslinking-targeted therapeutics development.
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Affiliation(s)
- Wenyu Kong
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, People's Republic of China
| | - Cheng Lyu
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, People's Republic of China
| | - Hongen Liao
- Department of Biomedical Engineering, School of Medicine, Tsinghua University, Beijing 100084, People's Republic of China
| | - Yanan Du
- Department of Biomedical Engineering, School of Medicine, Tsinghua-Peking Center for Life Sciences, Tsinghua University, Beijing 100084, People's Republic of China
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20
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Lysyl oxidase inhibitors attenuate cyclosporin A-induced nephropathy in mouse. Sci Rep 2021; 11:12437. [PMID: 34127702 PMCID: PMC8203624 DOI: 10.1038/s41598-021-91772-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2020] [Accepted: 05/17/2021] [Indexed: 01/05/2023] Open
Abstract
Calcineurin inhibitors, such as Cyclosporin (CsA), are the mainstay of anti-rejection therapy in solid organ transplants but can paradoxically induce progressive nephropathy characterised by renal dysfunction and interstitial fibrosis. Lysyl oxidases (LOXs), a group of enzymes that catalyse extracellular matrix (ECM) crosslinking, were shown to implicate in tissue scarring. It is hypothesized that inhibition of these enzymes may render therapeutic effects against CsA-induced nephropathy. In this study, 6-to-8 weeks old C57BL/6 J mice were administered saline or CsA (30 mg/kg/day s.c) for 16 weeks. At 8 weeks, CsA-treated animals were divided into 5 groups respectively treated with: (1) vehicle, (2) PXS-5505 (Pan-LOX inhibitor), (3) PXS-5382 (LOX-like 2 inhibitor), (4) PXS-5505 for 4 weeks then PXS-5382 for 4 weeks (sequential therapy), and (5) Telmisartan (standard therapy). Our results indicate that CsA administration significantly increased the levels of blood urea nitrogen, glomerular and tubular injury, tubulointerstitial fibrosis, inflammation and oxidative stress in mouse kidney. These changes were associated with upregulated mRNA expression of LOX and LOXL2. Administration of Pan-LOX or LOXL2 inhibitors or the sequential therapy suppressed the expression of ECM proteins (α-SMA, FN and COL1A), matrix metalloproteases (MMP)2 and 9, inflammatory markers (TNFα and MCP-1) and TGF-β1-Smad3 signalling. Among all regimens including telmisartan, only Pan-LOX inhibitor PXS-5505 was able to attenuate uraemia. Collectively, our study suggests that Pan-LOX and LOXL2 inhibition can attenuate progressive nephropathy due to CsA administration.
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21
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ATP7A-Regulated Enzyme Metalation and Trafficking in the Menkes Disease Puzzle. Biomedicines 2021; 9:biomedicines9040391. [PMID: 33917579 PMCID: PMC8067471 DOI: 10.3390/biomedicines9040391] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Revised: 04/01/2021] [Accepted: 04/02/2021] [Indexed: 12/12/2022] Open
Abstract
Copper is vital for numerous cellular functions affecting all tissues and organ systems in the body. The copper pump, ATP7A is critical for whole-body, cellular, and subcellular copper homeostasis, and dysfunction due to genetic defects results in Menkes disease. ATP7A dysfunction leads to copper deficiency in nervous tissue, liver, and blood but accumulation in other tissues. Site-specific cellular deficiencies of copper lead to loss of function of copper-dependent enzymes in all tissues, and the range of Menkes disease pathologies observed can now be explained in full by lack of specific copper enzymes. New pathways involving copper activated lysosomal and steroid sulfatases link patient symptoms usually related to other inborn errors of metabolism to Menkes disease. Additionally, new roles for lysyl oxidase in activation of molecules necessary for the innate immune system, and novel adapter molecules that play roles in ERGIC trafficking of brain receptors and other proteins, are emerging. We here summarize the current knowledge of the roles of copper enzyme function in Menkes disease, with a focus on ATP7A-mediated enzyme metalation in the secretory pathway. By establishing mechanistic relationships between copper-dependent cellular processes and Menkes disease symptoms in patients will not only increase understanding of copper biology but will also allow for the identification of an expanding range of copper-dependent enzymes and pathways. This will raise awareness of rare patient symptoms, and thus aid in early diagnosis of Menkes disease patients.
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22
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Harari-Steinberg O, Omer D, Gnatek Y, Pleniceanu O, Goldberg S, Cohen-Zontag O, Pri-Chen S, Kanter I, Ben Haim N, Becker E, Ankawa R, Fuchs Y, Kalisky T, Dotan Z, Dekel B. Ex Vivo Expanded 3D Human Kidney Spheres Engraft Long Term and Repair Chronic Renal Injury in Mice. Cell Rep 2021; 30:852-869.e4. [PMID: 31968258 DOI: 10.1016/j.celrep.2019.12.047] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2019] [Revised: 10/04/2019] [Accepted: 12/12/2019] [Indexed: 12/26/2022] Open
Abstract
End-stage renal disease is a worldwide epidemic requiring renal replacement therapy. Harvesting tissue from failing kidneys and autotransplantation of tissue progenitors could theoretically delay the need for dialysis. Here we use healthy and end-stage human adult kidneys to robustly expand proliferative kidney epithelial cells and establish 3D kidney epithelial cultures termed "nephrospheres." Formation of nephrospheres reestablishes renal identity and function in primary cultures. Transplantation into NOD/SCID mice shows that nephrospheres restore self-organogenetic properties lost in monolayer cultures, allowing long-term engraftment as tubular structures, potentially adding nephron segments and demonstrating self-organization as critical to survival. Furthermore, long-term tubular engraftment of nephrospheres is functionally beneficial in murine models of chronic kidney disease. Remarkably, nephrospheres inhibit pro-fibrotic collagen production in cultured fibroblasts via paracrine modulation, while transplanted nephrospheres induce transcriptional signatures of proliferation and release from quiescence, suggesting re-activation of endogenous repair. These data support the use of human nephrospheres for renal cell therapy.
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Affiliation(s)
- Orit Harari-Steinberg
- Pediatric Stem Cell Research Institute, Edmond and Lily Sara Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Pediatric Research Center for Genetics, Development and Environment, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Dorit Omer
- Pediatric Stem Cell Research Institute, Edmond and Lily Sara Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Pediatric Research Center for Genetics, Development and Environment, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yehudit Gnatek
- Pediatric Stem Cell Research Institute, Edmond and Lily Sara Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Pediatric Research Center for Genetics, Development and Environment, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Oren Pleniceanu
- Pediatric Stem Cell Research Institute, Edmond and Lily Sara Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Pediatric Research Center for Genetics, Development and Environment, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sanja Goldberg
- Pediatric Stem Cell Research Institute, Edmond and Lily Sara Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Pediatric Research Center for Genetics, Development and Environment, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Osnat Cohen-Zontag
- Pediatric Stem Cell Research Institute, Edmond and Lily Sara Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Pediatric Research Center for Genetics, Development and Environment, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Sara Pri-Chen
- The Maurice and Gabriela Goldschleger Eye Research Institute, Sheba Medical Center, Ramat-Gan, Israel
| | - Itamar Kanter
- Faculty of Engineering and Bar-Ilan Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Nissim Ben Haim
- Faculty of Engineering and Bar-Ilan Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Eli Becker
- Faculty of Engineering and Bar-Ilan Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Roi Ankawa
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Yaron Fuchs
- Laboratory of Stem Cell Biology and Regenerative Medicine, Department of Biology, Technion - Israel Institute of Technology, Haifa, Israel
| | - Tomer Kalisky
- Faculty of Engineering and Bar-Ilan Institute of Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat-Gan, Israel
| | - Zohar Dotan
- Department of Urology, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Benjamin Dekel
- Pediatric Stem Cell Research Institute, Edmond and Lily Sara Children's Hospital, Sheba Medical Center, Tel Hashomer, Ramat-Gan, Israel; Pediatric Research Center for Genetics, Development and Environment, Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel; Division of Pediatric Nephrology, Safra Children's Hospital, Sheba Medical Center, Ramat-Gan, Israel.
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23
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Bennington J, Lankford S, Magalhaes RS, Shankle D, Fanning J, Kartini C, Suparto I, Kusumawardhani W, Putra MA, Mariya S, Badlani G, Williams JK. Chemokine Therapy in Cats With Experimental Renal Fibrosis and in a Kidney Disease Pilot Study. Front Vet Sci 2021; 8:646087. [PMID: 33748219 PMCID: PMC7969654 DOI: 10.3389/fvets.2021.646087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Accepted: 02/12/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Chronic tubulointerstitial fibrosis is a common final pathway leading to end stage kidney disease in cats and has no effective treatment. The use of cell-based molecules to treat kidney fibrosis may be a promising approach. The objectives were to test the effects of intra-renal chemokine CXCL12 injection in a pre-clinical cat model of unilateral ischemia/reperfusion (I/R)-induced kidney fibrosis and then, within a clinical pilot study, test the safety/feasibility of CXCL12 injection in cats that might have early chronic kidney disease (CKD). Methods: Pre-clinical: Thirty cats received intra-renal injection of 100, 200, or 400 ng of recombinant human CXCL12, or sterile saline, into the I/R kidney 70 days post-injury, or were non-injured, non-injected controls (n = 6/group). Kidney collagen content was quantified 4 months post-treatment using Masson's Trichrome and Picrosirius Red (PSR) stained tissues. In a separate study (n = 2) exploring short-term effects of CXCL12, 200 ng CXCL12 was injected into I/R kidneys and then harvested either 30 min (n = 1) or 1 month (n = 1) post-injection. Kidney concentrations of CXCL12, matrix metalloproteinase 1 (MMP-1), and lysyl oxidase-like enzyme 2 (LOXL-2) were quantified via ELISA. Clinical Pilot: 14 client-owned cats with potential early kidney disease received a single-treatment, bilateral intra-renal injection of 200 ng CXCL12 (n = 7), or received no injection (n = 7). Blood/urine samples were collected monthly for 9 months to assess renal function and CKD staging. Results: Pre-clinical: I/R increased the affected kidney collagen content, which both mid and high doses of CXCL12 restored to normal (ps < 0.05 vs. untreated). I/R increased collagen fiber width, which both mid and high doses of CXCL12 restored to normal (p < 0.001 vs. untreated). Early changes in kidney MMP-1, associated with collagen breakdown, and subsequent decreases in LOXL-2, associated with collagen cross-linking, in response to CXCL12 treatment may contribute to these findings. Clinical Pilot: Bilateral intra-renal injection of CXCL12 using ultrasound guidance in cats with CKD was feasible and safe in a general practice clinical setting with no obvious side effects noted during the 9-month follow-up period. Conclusions: Intra-renal injection of CXCL12 may prove to be an effective treatment for kidney fibrosis in cats with CKD. Additional mechanistic and clinical evaluations are needed.
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Affiliation(s)
- Julie Bennington
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Shannon Lankford
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Renata S. Magalhaes
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Douglas Shankle
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
| | - Jason Fanning
- Department of Health and Exercise Science, Wake Forest University, Winston-Salem, NC, United States
| | - Cucu Kartini
- Praktek Dokter Hewan Bersama Joint Veterinary Practice, Sunter, Indonesia
| | - Irma Suparto
- Primate Research Center, Institut Pertanian Bogor, Bogor Agricultural University, Bogor, Indonesia
| | | | - M. ArRaniri Putra
- Praktek Dokter Hewan Bersama Joint Veterinary Practice, Sunter, Indonesia
| | - Silmi Mariya
- Primate Research Center, Institut Pertanian Bogor, Bogor Agricultural University, Bogor, Indonesia
| | - Gopal Badlani
- Department of Urology, Wake Forest Baptist Health, Winston-Salem, NC, United States
| | - J. Koudy Williams
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, United States
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24
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Sierra-Ramos C, Velazquez-Garcia S, Keskus AG, Vastola-Mascolo A, Rodríguez-Rodríguez AE, Luis-Lima S, Hernández G, Navarro-González JF, Porrini E, Konu O, Alvarez de la Rosa D. Increased SGK1 activity potentiates mineralocorticoid/NaCl-induced kidney injury. Am J Physiol Renal Physiol 2021; 320:F628-F643. [PMID: 33586495 DOI: 10.1152/ajprenal.00505.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Serum and glucocorticoid-regulated kinase 1 (SGK1) stimulates aldosterone-dependent renal Na+ reabsorption and modulates blood pressure. In addition, genetic ablation or pharmacological inhibition of SGK1 limits the development of kidney inflammation and fibrosis in response to excess mineralocorticoid signaling. In this work, we tested the hypothesis that a systemic increase in SGK1 activity would potentiate mineralocorticoid/salt-induced hypertension and kidney injury. To that end, we used a transgenic mouse model with increased SGK1 activity. Mineralocorticoid/salt-induced hypertension and kidney damage was induced by unilateral nephrectomy and treatment with deoxycorticosterone acetate and NaCl in the drinking water for 6 wk. Our results show that although SGK1 activation did not induce significantly higher blood pressure, it produced a mild increase in glomerular filtration rate, increased albuminuria, and exacerbated glomerular hypertrophy and fibrosis. Transcriptomic analysis showed that extracellular matrix- and immune response-related terms were enriched in the downregulated and upregulated genes, respectively, in transgenic mice. In conclusion, we propose that systemically increased SGK1 activity is a risk factor for the development of mineralocorticoid-dependent kidney injury in the context of low renal mass and independently of blood pressure.NEW & NOTEWORTHY Increased activity of the protein kinase serum and glucocorticoid-regulated kinase 1 may be a risk factor for accelerated renal damage. Serum and glucocorticoid-regulated kinase 1 expression could be a marker for the rapid progression toward chronic kidney disease and a potential therapeutic target to slow down the process.
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Affiliation(s)
- Catalina Sierra-Ramos
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Silvia Velazquez-Garcia
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Ayse G Keskus
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey
| | - Arianna Vastola-Mascolo
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | | | - Sergio Luis-Lima
- Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Departamento de Medicina Interna, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Guadalberto Hernández
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Juan F Navarro-González
- Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Unidad de Investigación y Servicio de Nefrología, Hospital Universitario Nuestra Señora de Candelaria, Santa Cruz de Tenerife, Spain
| | - Esteban Porrini
- Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Departamento de Medicina Interna, Universidad de La Laguna, La Laguna, Tenerife, Spain
| | - Ozlen Konu
- Interdisciplinary Neuroscience Program, Bilkent University, Ankara, Turkey.,Department of Molecular Biology and Genetics, Faculty of Science, Bilkent University, Ankara, Turkey.,UNAM-Institute of Materials Science and Nanotechnology, Ankara, Turkey
| | - Diego Alvarez de la Rosa
- Departamento de Ciencias Médicas Básicas, Universidad de La Laguna, La Laguna, Tenerife, Spain.,Instituto de Tecnologías Biomédicas, Universidad de La Laguna, La Laguna, Tenerife, Spain
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25
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Bersie-Larson LM, Gyoneva L, Goodman DJ, Dorfman KD, Segal Y, Barocas VH. Glomerular filtration and podocyte tensional homeostasis: importance of the minor type IV collagen network. Biomech Model Mechanobiol 2020; 19:2433-2442. [PMID: 32462439 PMCID: PMC7606712 DOI: 10.1007/s10237-020-01347-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 05/13/2020] [Indexed: 03/05/2023]
Abstract
The minor type IV collagen chain, which is a significant component of the glomerular basement membrane in healthy individuals, is known to assemble into large structures (supercoils) that may contribute to the mechanical stability of the collagen network and the glomerular basement membrane as a whole. The absence of the minor chain, as in Alport syndrome, leads to glomerular capillary demise and eventually to kidney failure. An important consideration in this problem is that the glomerular capillary wall must be strong enough to withstand the filtration pressure and porous enough to permit filtration at reasonable pressures. In this work, we propose a coupled feedback loop driven by filtration demand and tensional homeostasis of the podocytes forming the outer portion of the glomerular capillary wall. Briefly, the deposition of new collagen increases the stiffness of basement membrane, helping to stress shield the podocytes, but the new collagen also decreases the permeability of the basement membrane, requiring an increase in capillary transmural pressure drop to maintain filtration; the resulting increased pressure outweighs the increased glomerular basement membrane stiffness and puts a net greater stress demand on the podocytes. This idea is explored by developing a multiscale simulation of the capillary wall, in which a macroscopic (µm scale) continuum model is connected to a set of microscopic (nm scale) fiber network models representing the collagen network and the podocyte cytoskeleton. The model considers two cases: healthy remodeling, in which the presence of the minor chain allows the collagen volume fraction to be increased by thickening fibers, and Alport syndrome remodeling, in which the absence of the minor chain allows collagen volume fraction to be increased only by adding new fibers to the network. The permeability of the network is calculated based on previous models of flow through a fiber network, and it is updated for different fiber radii and volume fractions. The analysis shows that the minor chain allows a homeostatic balance to be achieved in terms of both filtration and cell tension. Absent the minor chain, there is a fundamental change in the relation between the two effects, and the system becomes unstable. This result suggests that mechanobiological or mechanoregulatory therapies may be possible for Alport syndrome and other minor chain collagen diseases of the kidney.
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Affiliation(s)
- Lauren M Bersie-Larson
- Department of Biomedical Engineering, University of Minnesota, 7-105 Nils Hasselmo Hall, 312 Church St SE, Minneapolis, MN, 55455, USA
| | - Lazarina Gyoneva
- Department of Biomedical Engineering, University of Minnesota, 7-105 Nils Hasselmo Hall, 312 Church St SE, Minneapolis, MN, 55455, USA
| | - Daniel J Goodman
- Department of Biomedical Engineering, University of Minnesota, 7-105 Nils Hasselmo Hall, 312 Church St SE, Minneapolis, MN, 55455, USA
| | - Kevin D Dorfman
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN, USA
| | - Yoav Segal
- Division of Renal Diseases and Hypertension, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
- Minneapolis VA Health Care System, Minneapolis, MN, USA
| | - Victor H Barocas
- Department of Biomedical Engineering, University of Minnesota, 7-105 Nils Hasselmo Hall, 312 Church St SE, Minneapolis, MN, 55455, USA.
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26
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Zhang XQ, Li X, Zhou WQ, Liu X, Huang JL, Zhang YY, Lindholm B, Yu C. Serum Lysyl Oxidase Is a Potential Diagnostic Biomarker for Kidney Fibrosis. Am J Nephrol 2020; 51:907-918. [PMID: 33152735 DOI: 10.1159/000509381] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2020] [Accepted: 06/12/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND Kidney fibrosis is the ultimate consequence of advanced stages of chronic kidney disease (CKD); however, there are currently no reliable biomarkers or noninvasive diagnostic tests available for the detection of kidney fibrosis. Lysyl oxidase (LOX) promotes collagen cross-linking, and serum LOX levels have been shown to be elevated in patients with fibrosis of the heart, lungs, and liver. However, serum LOX levels have not been reported in patients with kidney fibrosis. We explored whether serum LOX levels are associated with kidney fibrosis. METHOD Overall, 202 patients with kidney disease underwent renal biopsy, scoring of kidney fibrosis, and determination of the area of kidney fibrosis. LOX levels were measured in serum and in kidney tissues. We analyzed the association of circulating LOX and tissue LOX levels with the scores and areas of kidney fibrosis. LOX expression was also investigated with in vitro and in vivo kidney fibrosis models. RESULTS Serum LOX levels were higher in patients with kidney fibrosis than in those without kidney fibrosis (p < 0.001) and higher in patients with moderate-severe kidney fibrosis than in patients with mild kidney fibrosis (p < 0.001). Both serum LOX and renal tissue LOX levels correlated with the area of kidney fibrosis (r = 0.748, p < 0.001; r = 0.899, p < 0.001, respectively). Receiver operating characteristic curve analysis of serum LOX levels showed an area under the curve of 0.80 (95% CI: 0.74-0.86). The optimal serum LOX level cutoff point was 253.34 pg/mL for the prediction of kidney fibrosis and 306.56 pg/mL for the prediction of moderate-severe kidney fibrosis. LOX expression levels were significantly upregulated (2.3-2.6 and 6-fold, respectively) in in vitro and in vivo interstitial fibrosis models. CONCLUSIONS Both serum LOX and tissue LOX levels correlated with the presence and degree of kidney fibrosis in patients with CKD. These results suggest that serum LOX levels could potentially serve as a noninvasive diagnostic biomarker for kidney fibrosis and may further potentially serve as a stratified biomarker for the identification of mild and moderate-severe kidney fibrosis.
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Affiliation(s)
- Xiao-Qin Zhang
- Department of Nephrology, Tongji Hospital, Tongji University, Shanghai, China
| | - Xin Li
- Department of Nephrology, Tongji Hospital, Tongji University, Shanghai, China
| | - Wen-Qian Zhou
- Department of Nephrology, Tongji Hospital, Tongji University, Shanghai, China
| | - Xi Liu
- Department of Nephrology, Tongji Hospital, Tongji University, Shanghai, China
| | - Jie-Li Huang
- Department of Nephrology, Tongji Hospital, Tongji University, Shanghai, China
| | - Ying-Ying Zhang
- Department of Nephrology, Tongji Hospital, Tongji University, Shanghai, China
| | - Bengt Lindholm
- Department of Clinical Science, Intervention and Technology, Karolinska Institutet, Stockholm, Sweden
| | - Chen Yu
- Department of Nephrology, Tongji Hospital, Tongji University, Shanghai, China,
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27
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Yang N, Cao DF, Yin XX, Zhou HH, Mao XY. Lysyl oxidases: Emerging biomarkers and therapeutic targets for various diseases. Biomed Pharmacother 2020; 131:110791. [PMID: 33152948 DOI: 10.1016/j.biopha.2020.110791] [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: 08/08/2020] [Revised: 09/11/2020] [Accepted: 09/17/2020] [Indexed: 12/12/2022] Open
Abstract
Therapeutic targeting of extracellular proteins has attracted huge attention in treating human diseases. The lysyl oxidases (LOXs) are a family of secreted copper-dependent enzymes which initiate the covalent crosslinking of collagen and elastin fibers in the extracellular microenvironment, thereby facilitating extracellular matrix (ECM) remodeling and ECM homeostasis. Apart from ECM-dependent roles, LOXs are also involved in other biological processes such as epithelial-to-mesenchymal transition (EMT) and transcriptional regulation, especially following hypoxic stress. Dysregulation of LOXs is found to underlie the onset and progression of multiple pathologies, such as carcinogenesis and cancer metastasis, fibrotic diseases, neurodegeneration and cardiovascular diseases. In this review, we make a comprehensive summarization of clinical and experimental evidences that support roles of for LOXs in disease pathology and points out LOXs as promising therapeutic targets for improving prognosis. Additionally, we also propose that LOXs reshape cell-ECM interaction or cell-cell interaction due to ECM-dependent and ECM-independent roles for LOXs. Therapeutic intervention of LOXs may have advantages in the maintenance of communication between ECM and cell or intercellular signaling, finally recovering organ function.
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Affiliation(s)
- Nan Yang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
| | - Dan-Feng Cao
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan, 410013, PR China
| | - Xi-Xi Yin
- Department of Pediatrics, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
| | - Hong-Hao Zhou
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, PR China
| | - Xiao-Yuan Mao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, 87 Xiangya Road, Changsha, 410008, PR China; Institute of Clinical Pharmacology, Central South University, Hunan Key Laboratory of Pharmacogenetics, 110 Xiangya Road, Changsha, 410078, PR China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, 110 Xiangya Road, Changsha, 410078, PR China; National Clinical Research Center for Geriatric Disorders, 87 Xiangya Road, Changsha, 410008, Hunan, PR China.
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28
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van Haaften WT, Blokzijl T, Hofker HS, Olinga P, Dijkstra G, Bank RA, Boersema M. Intestinal stenosis in Crohn's disease shows a generalized upregulation of genes involved in collagen metabolism and recognition that could serve as novel anti-fibrotic drug targets. Therap Adv Gastroenterol 2020; 13:1756284820952578. [PMID: 32922514 PMCID: PMC7457685 DOI: 10.1177/1756284820952578] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 07/31/2020] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND AND AIMS Crohn's disease (CD) can be complicated by intestinal fibrosis. Pharmacological therapies against intestinal fibrosis are not available. The aim of this study was to determine whether pathways involved in collagen metabolism are upregulated in intestinal fibrosis, and to discuss which drugs might be suitable to inhibit excessive extracellular matrix formation targeting these pathways. METHODS Human fibrotic and non-fibrotic terminal ileum was obtained from patients with CD undergoing ileocecal resection due to stenosis. Genes involved in collagen metabolism were analyzed using a microfluidic low-density TaqMan array. A literature search was performed to find potential anti-fibrotic drugs that target proteins/enzymes involved in collagen synthesis, its degradation and its recognition. RESULTS mRNA expression of collagen type I (COL1A1, 0.76 ± 0.28 versus 37.82 ± 49.85, p = 0.02) and III (COL3A1, 2.01 ± 2.61 versus 68.65 ± 84.07, p = 0.02) was increased in fibrotic CD compared with non-fibrotic CD. mRNA expression of proteins involved in both intra- and extracellular post-translational modification of collagens (prolyl- and lysyl hydroxylases, lysyl oxidases, chaperones), collagen-degrading enzymes (MMPs and cathepsin-K), and collagen receptors were upregulated in the fibrosis-affected part. A literature search on the upregulated genes revealed several potential anti-fibrotic drugs. CONCLUSION Expression of genes involved in collagen metabolism in intestinal fibrosis affected terminal ileum of patients with CD reveals a plethora of drug targets. Inhibition of post-translational modification and altering collagen metabolism might attenuate fibrosis formation in the intestine in CD. Which compound has the highest potential depends on a combination anti-fibrotic efficacy and safety, especially since some of the enzymes play key roles in the physiology of collagen.
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Affiliation(s)
- Wouter Tobias van Haaften
- Department of Gastroenterology and Hepatology,
University Medical Center Groningen, University of Groningen, Groningen, the
Netherlands
- Department of Pharmaceutical Technology and
Biopharmacy, University of Groningen, Groningen, the Netherlands
| | - Tjasso Blokzijl
- Department of Laboratory Medicine, University of
Groningen, University Medical Center Groningen, Groningen, The
Netherlands
| | - Hendrik Sijbrand Hofker
- Department of Surgery, University Medical Center
Groningen, University of Groningen, Groningen, the Netherlands
| | - Peter Olinga
- Department of Pharmaceutical Technology and
Biopharmacy, University of Groningen, Ant. Deusinglaan 1, Groningen, 9713
AV, the Netherlands
| | - Gerard Dijkstra
- Department of Gastroenterology and Hepatology,
University Medical Center Groningen, University of Groningen, Groningen, the
Netherlands
| | - Ruud A. Bank
- Department of Pathology and Medical Biology,
University Medical Center Groningen, University of Groningen, Groningen, the
Netherlands
| | - Miriam Boersema
- Department of Pharmaceutical Technology and
Biopharmacy, University of Groningen, Groningen, the Netherlands
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29
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Chen W, Yang A, Jia J, Popov YV, Schuppan D, You H. Lysyl Oxidase (LOX) Family Members: Rationale and Their Potential as Therapeutic Targets for Liver Fibrosis. Hepatology 2020; 72:729-741. [PMID: 32176358 DOI: 10.1002/hep.31236] [Citation(s) in RCA: 105] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Revised: 01/30/2020] [Accepted: 03/06/2020] [Indexed: 12/24/2022]
Abstract
The cross-linking of structural extracellular matrix (ECM) components, especially fibrillar collagens and elastin, is strongly implicated in fibrosis progression and resistance to fibrosis reversal. Lysyl oxidase family members (LOX and LOXL1 [lysyl oxidase-like 1], LOXL2 [lysyl oxidase-like 2], LOXL3 [lysyl oxidase-like 3], and LOXL4 [lysyl oxidase like 4]) are extracellular copper-dependent enzymes that play a key role in ECM cross-linking, but have also other intracellular functions relevant to fibrosis and carcinogenesis. Although the expression of most LOX family members is elevated in experimental liver fibrosis of diverse etiologies, their individual contribution to fibrosis is incompletely understood. Inhibition of the LOX family as a whole and of LOX, LOXL1, and LOXL2 specifically has been shown to suppress fibrosis progression and accelerate its reversal in rodent models of cardiac, renal, pulmonary, and liver fibrosis. Recent disappointing clinical trials with a monoclonal antibody against LOXL2 (simtuzumab) in patients with pulmonary and liver fibrosis dampened enthusiasm for LOX family member inhibition. However, this unexpected negative outcome may be related to the inefficient antibody, rather than to LOXL2, not qualifying as a relevant antifibrotic target. Moreover, LOX family members other than LOXL2 may prove to be attractive therapeutic targets. In this review, we summarize the structural hallmarks, expression patterns, covalent cross-linking activities, and modes of regulation of LOX family members and discuss the clinical potential of their inhibition to treat fibrosis in general and liver fibrosis in particular.
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Affiliation(s)
- Wei Chen
- Experimental and Translational Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Aiting Yang
- Experimental and Translational Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jidong Jia
- Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yury V Popov
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA
| | - Detlef Schuppan
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA.,Institute of Translational Immunology and Research, Center for Immunotherapy, University of Mainz Medical Center, Mainz, Germany
| | - Hong You
- Experimental and Translational Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Tolerance Induction and Organ Protection in Transplantation, Beijing Friendship Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Translational Medicine in Liver Cirrhosis, National Clinical Research Center of Digestive Diseases, Liver Research Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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30
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Wei X, Zhu X, Jiang L, Huang X, Zhang Y, Zhao D, Du Y. Recent advances in understanding the role of hypoxia-inducible factor 1α in renal fibrosis. Int Urol Nephrol 2020; 52:1287-1295. [PMID: 32378138 DOI: 10.1007/s11255-020-02474-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 04/15/2020] [Indexed: 12/11/2022]
Abstract
Renal fibrosis is the most common pathological manifestation of chronic kidney disease (CKD), and with numerous influencing factors, its pathogenesis is complex. Epithelial-mesenchymal transition (EMT) is known to promote the progression of renal fibrosis via alterations in the secreted proteome. Moreover, blocking or even reversing EMT can effectively reduce the degree of fibrosis. As such, targeting the key molecules responsible for promoting EMT may be an effective strategy for inhibiting renal fibrosis. Research in recent years has demonstrated that hypoxia-inducible factor 1α (HIF-1α) acts to promote renal fibrosis through regulation of EMT. However, the relationship between HIF-1α and EMT remains incompletely understood. In the present review, the underlying mechanism of the interaction between HIF-1α and EMT is explored to provide novel insight into the pathogenesis of renal fibrosis and new ideas for early targeted intervention.
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Affiliation(s)
- Xuejiao Wei
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Xiaoyu Zhu
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Lili Jiang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Xiu Huang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Yangyang Zhang
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Dan Zhao
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China
| | - Yujun Du
- Department of Nephrology, The First Hospital of Jilin University, 71 XinMin Street, Changchun, Jilin, China.
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Torra R, Furlano M. New therapeutic options for Alport syndrome. Nephrol Dial Transplant 2020; 34:1272-1279. [PMID: 31190059 DOI: 10.1093/ndt/gfz131] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 05/31/2019] [Indexed: 12/12/2022] Open
Abstract
Alport syndrome (AS) is the most frequent inherited kidney disease after autosomal dominant polycystic kidney disease. It has three different patterns of inheritance-autosomal dominant, autosomal recessive and X-linked-which in part explains the wide spectrum of disease, ranging from isolated microhaematuria to end-stage renal disease early in life. The search for a treatment for AS is being pursued vigorously, not only because of the obvious unmet need but also because AS is a rare disease and any drug approved will have an orphan drug designation with its various benefits. Moreover, AS patients are quite young with very few comorbidities, which facilitates clinical trials. This review identifies the particularities of each pattern of inheritance but focuses mainly on new drugs or therapeutic targets for the disease. Most treatment-related investigations are directed not at the main abnormality in AS, namely collagen IV composition, but rather at the associated inflammation and fibrosis. Thus, AS may serve as a proof of concept for numerous drugs of potential value in many diseases that cause chronic kidney disease.
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Affiliation(s)
- Roser Torra
- Inherited Renal Disorders, Nephrology Department, Fundació Puigvert, REDINREN, IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Mónica Furlano
- Inherited Renal Disorders, Nephrology Department, Fundació Puigvert, REDINREN, IIB Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
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Chopra V, Sangarappillai RM, Romero‐Canelón I, Jones AM. Lysyl Oxidase Like‐2 (LOXL2): An Emerging Oncology Target. ADVANCED THERAPEUTICS 2020. [DOI: 10.1002/adtp.201900119] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Vriddhi Chopra
- School of PharmacyUniversity of Birmingham Birmingham B15 2TT UK
| | | | | | - Alan M. Jones
- School of PharmacyUniversity of Birmingham Birmingham B15 2TT UK
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Yemanyi F, Vranka J, Raghunathan V. Generating cell-derived matrices from human trabecular meshwork cell cultures for mechanistic studies. Methods Cell Biol 2020; 156:271-307. [PMID: 32222223 DOI: 10.1016/bs.mcb.2019.10.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Ocular hypertension has been attributed to increased resistance to aqueous outflow often as a result of changes in trabecular meshwork (TM) extracellular matrix (ECM) using in vivo animal models (for example, by genetic manipulation) and ex vivo anterior segment perfusion organ cultures. These are, however, complex and difficult in dissecting molecular mechanisms and interactions. In vitro approaches to mimic the underlying substrate exist by manipulating either ECM topography, mechanics, or chemistry. These models best investigate the role of individual ECM protein(s) and/or substrate property, and thus do not recapitulate the multifactorial extracellular microenvironment; hence, mitigating its physiological relevance for mechanistic studies. Cell-derived matrices (CDMs), however, are capable of presenting a 3D-microenvironment rich in topography, chemistry, and whose mechanics can be tuned to better represent the network of native ECM constituents in vivo. Critically, the composition of CDMs may also be fine-tuned by addition of small molecules or relevant bioactive factors to mimic homeostasis or pathology. Here, we first provide a streamlined protocol for generating CDMs from TM cell cultures from normal or glaucomatous donor tissues. Second, we document how TM cells can be pharmacologically manipulated to obtain glucocorticoid-induced CDMs and how generated pristine CDMs can be manipulated with reagents like genipin. Finally, we summarize how CDMs may be used in mechanistic studies and discuss their probable application in future TM regenerative studies.
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Affiliation(s)
- Felix Yemanyi
- Department of Basic Sciences, University of Houston, Houston, TX, United States
| | - Janice Vranka
- Casey Eye Institute, Oregon Health and Science University, Portland, OR, United States
| | - VijayKrishna Raghunathan
- Department of Basic Sciences, University of Houston, Houston, TX, United States; The Ocular Surface Institute, College of Optometry, University of Houston, Houston, TX, United States; Department of Biomedical Engineering, Cullen College of Engineering, University of Houston, Houston, TX, United States.
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Basement membrane collagens and disease mechanisms. Essays Biochem 2019; 63:297-312. [PMID: 31387942 PMCID: PMC6744580 DOI: 10.1042/ebc20180071] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Revised: 07/09/2019] [Accepted: 07/22/2019] [Indexed: 12/28/2022]
Abstract
Basement membranes (BMs) are specialised extracellular matrix (ECM) structures and collagens are a key component required for BM function. While collagen IV is the major BM collagen, collagens VI, VII, XV, XVII and XVIII are also present. Mutations in these collagens cause rare multi-systemic diseases but these collagens have also been associated with major common diseases including stroke. Developing treatments for these conditions will require a collective effort to increase our fundamental understanding of the biology of these collagens and the mechanisms by which mutations therein cause disease. Novel insights into pathomolecular disease mechanisms and cellular responses to these mutations has been exploited to develop proof-of-concept treatment strategies in animal models. Combined, these studies have also highlighted the complexity of the disease mechanisms and the need to obtain a more complete understanding of these mechanisms. The identification of pathomolecular mechanisms of collagen mutations shared between different disorders represent an attractive prospect for treatments that may be effective across phenotypically distinct disorders.
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Majumder S, Ren L, Pushpakumar S, Sen U. Hydrogen sulphide mitigates homocysteine-induced apoptosis and matrix remodelling in mesangial cells through Akt/FOXO1 signalling cascade. Cell Signal 2019; 61:66-77. [PMID: 31085234 PMCID: PMC6561819 DOI: 10.1016/j.cellsig.2019.05.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 03/28/2019] [Accepted: 05/02/2019] [Indexed: 12/17/2022]
Abstract
Cellular damage and accumulation of extracellular matrix (ECM) protein in the glomerulo-interstitial space are the signatures of chronic kidney disease (CKD). Hyperhomocysteinemia (HHcy), a high level of homocysteine (Hcy) is associated with CKD and further contributes to kidney damage. Despite a large number of studies, the signalling mechanism of Hcy-mediated cellular damage and ECM remodelling in kidney remains inconclusive. Hcy metabolizes to produce hydrogen sulphide (H2S), and a number of studies have shown that H2S mitigates the adverse effect of HHcy in a variety of diseases involving several signalling molecules, including forkhead box O (FOXO) protein. FOXO is a group of transcription factor that includes FOXO1, which plays important roles in cell growth and proliferation. On the other hand, a cell survival factor, Akt regulates FOXO under normal condition. However, the involvement of Akt/FOXO1 pathway in Hcy-induced mesangial cell damage remains elusive, and whether H2S plays any protective roles has yet to be clearly defined. We treated mouse mesangial cells with or without H2S donor, GYY4137 and FOXO1 inhibitor, AS1842856 in HHcy condition and determined the involvement of Akt/FOXO1 signalling cascades. Our results indicated that Hcy inactivated Akt and activated FOXO1 by dephosphorylating both the signalling molecules and induced FOXO1 nuclear translocation followed by activation of the FOXO1 transcription factor. These led to the induction of cellular apoptosis and synthesis of excessive ECM protein, in part, due to increased ROS production, loss of mitochondrial membrane potential (ΔΨm), reduction in intracellular ATP concentration, increased MMP-2, -9, -14 mRNA and protein expression, and Col I, IV and fibronectin protein expression. Interestingly, GYY4137 or AS1842856 treatment prevented these changes by modulating Akt/FOXO1 axis in HHcy. We conclude that GYY4137 and/or AS1842856 mitigates HHcy induced mesangial cell damage and ECM remodelling by regulating Akt/FOXO1 pathway.
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Affiliation(s)
- Suravi Majumder
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Lu Ren
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, United States of America
| | - Sathnur Pushpakumar
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States of America
| | - Utpal Sen
- Department of Physiology, University of Louisville School of Medicine, Louisville, KY, United States of America.
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Quantitative proteomic profiling of extracellular matrix and site-specific collagen post-translational modifications in an in vitro model of lung fibrosis. Matrix Biol Plus 2019; 1:100005. [PMID: 33543004 PMCID: PMC7852317 DOI: 10.1016/j.mbplus.2019.04.002] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2018] [Revised: 04/09/2019] [Accepted: 04/09/2019] [Indexed: 12/21/2022] Open
Abstract
Lung fibrosis is characterized by excessive deposition of extracellular matrix (ECM), in particular collagens, by fibroblasts in the interstitium. Transforming growth factor-β1 (TGF-β1) alters the expression of many extracellular matrix (ECM) components produced by fibroblasts, but such changes in ECM composition as well as modulation of collagen post-translational modification (PTM) levels have not been comprehensively investigated. Here, we performed mass spectrometry (MS)-based proteomics analyses to assess changes in the ECM deposited by cultured lung fibroblasts from idiopathic pulmonary fibrosis (IPF) patients upon stimulation with transforming growth factor β1 (TGF-β1). In addition to the ECM changes commonly associated with lung fibrosis, MS-based label-free quantification revealed profound effects on enzymes involved in ECM crosslinking and turnover as well as multiple positive and negative feedback mechanisms of TGF-β1 signaling. Notably, the ECM changes observed in this in vitro model correlated significantly with ECM changes observed in patient samples. Because collagens are subject to multiple PTMs with major implications in disease, we implemented a new bioinformatic platform to analyze MS data that allows for the comprehensive mapping and site-specific quantitation of collagen PTMs in crude ECM preparations. These analyses yielded a comprehensive map of prolyl and lysyl hydroxylations as well as lysyl glycosylations for 15 collagen chains. In addition, site-specific PTM analysis revealed novel sites of prolyl-3-hydroxylation and lysyl glycosylation in type I collagen. Interestingly, the results show, for the first time, that TGF-β1 can modulate prolyl-3-hydroxylation and glycosylation in a site-specific manner. Taken together, this proof of concept study not only reveals unanticipated TGF-β1 mediated regulation of collagen PTMs and other ECM components but also lays the foundation for dissecting their key roles in health and disease. The proteomic data has been deposited to the ProteomeXchange Consortium via the MassIVE partner repository with the data set identifier MSV000082958. Quantitative proteomics of TGF-β-induced changes in ECM composition and collagen PTM in pulmonary fibroblasts TGF-β promotes crosslinking and turnover as well as complex feedback mechanisms that alter fibroblast ECM homeostasis. A novel bioinformatic workflow for MS data analysis enabled global mapping and quantitation of known and novel collagen PTMs Quantitative assessment of prolyl-3-hydroxylation site occupancy and lysine-O-glycosylation microheterogeneity TGF-β1 modulates collagen PTMs in a site-specific manner that may favor collagen accumulation in lung fibrosis
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Key Words
- 3-HyP, 3-hydroxyproline
- 4-HyP, 4-hydroxyproline
- AGC, automatic gain control
- ANXA11, annexin A11
- BGN, biglycan
- COL1A1, collagen-I alpha 1 chain
- Collagen
- Collagen post-translational modifications
- DCN, decorin
- ECM, extracellular matrix
- Extracellular matrix
- FN1, fibronectin 1
- G-HyK, galactosylhydroxylysine
- GG-HyK, glucosylgalactosylhydroxylysine
- HyK, hydroxylysine
- HyP, hydroxyproline
- ILD, interstitial lung disease
- IPF, idiopathic pulmonary fibrosis
- LH, lysyl hydroxylase
- LOX(L), lysyl oxidase(-like)
- LTBP2, latent-transforming growth factor β -binding protein 2
- Lysyl glycosylation
- Lysyl hydroxylation
- P3H, prolyl-3-hydroxylase
- P4H, prolyl-4-hydroxylase
- PAI1, plasminogen activator inhibitor 1
- PCA, principal component analysis
- PLOD (LH), procollagen-lysine,2-oxoglutarate 5-dioxygenases (lysyl hydroxylases)
- PTM, post-translational modification
- Prolyl hydroxylation
- Pulmonary fibrosis
- SEMA7A, semaphorin 7a
- TGF-β, transforming growth factor β
- TGM2, transglutaminase 1
- Transforming growth factor-β
- VCAN, versican
- Xaa, Xaa position in the Gly-Xaa-Yaa repeat in triple-helical collagen
- Yaa, Yaa position in the Gly-Xaa-Yaa repeat in triple-helical collagen
- α-SMA, α-smooth muscle actin
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Myofibroblast in Kidney Fibrosis: Origin, Activation, and Regulation. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1165:253-283. [DOI: 10.1007/978-981-13-8871-2_12] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Affiliation(s)
- Laszlo Lorand
- Department of Cell and Molecular BiologyNorthwestern University Feinberg School of Medicine Chicago Illinois USA
| | - Siiri E. Iismaa
- Molecular Cardiology and Biophysics DivisionVictor Chang Cardiac Research Institute Darlinghurst New South Wales Australia
- St Vincent's Clinical SchoolUniversity of New South Wales Kensington New South Wales Australia
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