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Xiao X, Wang W, Guo C, Wu J, Zhang S, Shi H, Kwon S, Chen J, Dong Z. Hypermethylation leads to the loss of HOXA5, resulting in JAG1 expression and NOTCH signaling contributing to kidney fibrosis. Kidney Int 2024; 106:98-114. [PMID: 38521405 DOI: 10.1016/j.kint.2024.02.023] [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: 09/21/2023] [Revised: 02/19/2024] [Accepted: 02/28/2024] [Indexed: 03/25/2024]
Abstract
Epigenetic regulations, including DNA methylation, are critical to the development and progression of kidney fibrosis, but the underlying mechanisms remain elusive. Here, we show that fibrosis of the mouse kidney was associated with the induction of DNA methyltransferases and increases in global DNA methylation and was alleviated by the DNA methyltransferase inhibitor 5-Aza-2'-deoxycytidine (5-Aza). Genome-wide analysis demonstrated the hypermethylation of 94 genes in mouse unilateral ureteral obstruction kidneys, which was markedly reduced by 5-Aza. Among these genes, Hoxa5 was hypermethylated at its gene promoter, and this hypermethylation was associated with reduced HOXA5 expression in fibrotic mouse kidneys after ureteral obstruction or unilateral ischemia-reperfusion injury. 5-Aza prevented Hoxa5 hypermethylation, restored HOXA5 expression, and suppressed kidney fibrosis. Downregulation of HOXA5 was verified in human kidney biopsies from patients with chronic kidney disease and correlated with the increased kidney fibrosis and DNA methylation. Kidney fibrosis was aggravated by conditional knockout of Hoxa5 and alleviated by conditional knockin of Hoxa5 in kidney proximal tubules of mice. Mechanistically, we found that HOXA5 repressed Jag1 transcription by directly binding to its gene promoter, resulting in the suppression of JAG1-NOTCH signaling during kidney fibrosis. Thus, our results indicate that loss of HOXA5 via DNA methylation contributes to fibrogenesis in kidney diseases by inducing JAG1 and consequent activation of the NOTCH signaling pathway.
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MESH Headings
- Animals
- Jagged-1 Protein/genetics
- Jagged-1 Protein/metabolism
- Homeodomain Proteins/genetics
- Homeodomain Proteins/metabolism
- Fibrosis
- DNA Methylation
- Signal Transduction
- Humans
- Mice
- Male
- Ureteral Obstruction/complications
- Ureteral Obstruction/pathology
- Ureteral Obstruction/genetics
- Ureteral Obstruction/metabolism
- Receptors, Notch/metabolism
- Receptors, Notch/genetics
- Promoter Regions, Genetic
- Kidney/pathology
- Kidney/metabolism
- Mice, Knockout
- Mice, Inbred C57BL
- Disease Models, Animal
- Renal Insufficiency, Chronic/pathology
- Renal Insufficiency, Chronic/genetics
- Renal Insufficiency, Chronic/metabolism
- Epigenesis, Genetic
- Kidney Diseases/pathology
- Kidney Diseases/genetics
- Kidney Diseases/metabolism
- Kidney Diseases/etiology
- Transcription Factors
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Affiliation(s)
- Xiao Xiao
- Department of Laboratory Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China; Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA.
| | - Wei Wang
- Department of Urology, Institute of Urology, and Anhui Province Key Laboratory of Genitourinary Diseases, the First Affiliated Hospital of Anhui Medical University, Hefei, China; Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Chunyuan Guo
- Department of Dermatology, Shanghai Skin Disease Hospital, and Institute of Psoriasis, Tongji University School of Medicine, Shanghai, China; Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Jiazhu Wu
- Department of Hematology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Sheng Zhang
- Department of Spine Surgery and Musculoskeletal Tumor, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Huidong Shi
- Cancer Center, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Sangho Kwon
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Jiankang Chen
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA.
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2
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Salehiyeh S, Faiz AF, Manzourolhojeh M, Bagheri AM, Lorian K. The functions of hydrogen sulfide on the urogenital system of both males and females: from inception to the present. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03086-8. [PMID: 38689070 DOI: 10.1007/s00210-024-03086-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 04/04/2024] [Indexed: 05/02/2024]
Abstract
Hydrogen sulfide (H2S) is known as a chemical gas in nature with both enzymatic and non-enzymatic biosynthesis in different human organs. A couple of studies have demonstrated the function of H2S in regulating the homeostasis of the human body. Additionally, they have shown its synthesis, measurement, chemistry, protective effects, and interaction in various aspects of scientific evidence. Furthermore, many researches have demonstrated the beneficial impacts of H2S on genital organs and systems. According to various studies, it is recognized that H2S-producing enzymes and the endogenous production of H2S are expressed in male and female reproductive systems in different mammalian species. The main goal of this comprehensive review is to assess the potential therapeutic impacts of this gasotransmitter in the male and female urogenital system and find underlying mechanisms of this agent. This narrative review investigated the articles that were published from the 1970s to 2022. The review's primary focus is the impacts of H2S on the male and female urogenital system. Medline, CINAHL, PubMed, and Google scholar databases were searched. Keywords used in this review were "Hydrogen sulfide," "H2S," "urogenital system," and "urogenital tract". Numerous studies have demonstrated the therapeutic and protective effects of sodium hydrosulfide (Na-HS) as an H2S donor on male and female infertility disorders. Furthermore, it has been observed that H2S plays a significant role in improving different diseases such as ameliorating sperm parameters. The specific localization of H2S enzymes in the urogenital system provides an excellent opportunity to comprehend its function and role in various disorders related to this system. It is noteworthy that H2S has been demonstrated to be produced in endocrine organs and exhibit diverse activities. Moreover, it is important to recognize that alterations in H2S biosynthesis are closely linked to endocrine disorders. Therefore, hormones can be pivotal in regulating H2S production, and H2S synthesis pathways may aid in establishing novel therapeutic strategies. H2S possesses pharmacological effects on essential disorders, such as anti-inflammation, anti-apoptosis, and anti-oxidant activities, which render it a valuable therapeutic agent for human urogenital disease. Furthermore, this agent shows promise in ameliorating the detrimental effects of various male and female diseases. Despite the limited clinical research, studies have demonstrated that applying H2S as an anti-oxidant source could ameliorate adverse effects of different conditions in the urogenital system. More clinical studies are required to confirm the role of this component in clinical settings.
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Affiliation(s)
- Sajad Salehiyeh
- Andrology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Department of Physiology, School of Medicine, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Ahmad Faisal Faiz
- Department of Paraclinic, School of Medicine, Herat University, Herat, Afghanistan
| | - Mohammad Manzourolhojeh
- Department of Medical Laboratory Sciences, Gorgan Branch, Islamic Azad University, Gorgan, Iran
| | - Amir Mohammad Bagheri
- Department of Medical Genetics, Shahid Sadoughi university of Medical Sciences, Yazd, Iran
| | - Keivan Lorian
- Andrology Research Center, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
- Research and Clinical Center for Infertility, Yazd Reproductive Sciences Institute, Shahid Sadoughi University of Medical Sciences, Yazd, Iran.
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3
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Wu D, Jiang T, Zhang S, Huang M, Zhu Y, Chen L, Zheng Y, Zhang D, Yu H, Yao G, Sun L. Blockade of Notch1 Signaling Alleviated Podocyte Injury in Lupus Nephritis Via Inhibition of NLRP3 Inflammasome Activation. Inflammation 2024; 47:649-663. [PMID: 38085465 DOI: 10.1007/s10753-023-01935-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 10/24/2023] [Accepted: 11/20/2023] [Indexed: 05/07/2024]
Abstract
To explore the role of Notch1 pathway in the pathogenesis of podocyte injury, and to provide novel strategy for podocyte repair in lupus nephritis (LN). Bioinformatics analysis and immunofluorescence assay were applied to determine the expression and localization of Notch1 intracellular domain1 (NICD1) in kidneys of LN patients and MRL/lpr mice. The stable podocyte injury model in vitro was established by puromycin aminonucleoside (PAN) treatment. Expression of inflammasome activation related gene was detected by qPCR. The podocytes with PAN treatment were cultured with or without N-S-phenyl-glycine-t-butylester (DAPT), an inhibitor of Notch1 pathway. NICD1, Wilm'stumor1 (WT1), nucleotide-binding oligomerization domain-like receptors 3 (NLRP3), and absent in melanoma-like receptors 2 (AIM2) were detected by western blot. In vivo, MRL/lpr mice were administrated with DAPT or vehicle. The LN symptoms were assessed. The podocyte injury was evaluated, and the NLRP3 in podocytes of mice was detected. Notch1 pathway was overactivated in glomeruli of LN patients. NICD1 was colocalized with podocytes of LN patients and MRL/lpr mice. The inflammasome-related genes were significantly increased in podocytes with PAN treatment. NICD1 and NLRP3 were significantly decreased, while WT1 was significantly increased in injured podocytes treated with DAPT in vitro. In vivo, lupus-like symptoms were alleviated in DAPT treatment group. Notch1 pathway was inhibited in kidneys of mice treated with DAPT. The renal inflammation was reduced and the podocyte injury was mitigated in DAPT treatment group. The NLRP3 was decreased in podocytes of mice treated with DAPT. Notch1 pathway was overactivated in podocytes of LN patients and MRL/lpr mice. Blockade of Notch1 pathway reduced renal inflammation and alleviated podocyte injury via inhibition of NLRP3 inflammasome activation in LN.
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Affiliation(s)
- Dan Wu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Tingting Jiang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, China
| | - Shiyi Zhang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Mengxi Huang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, China
| | - Ying Zhu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Liang Chen
- Department of Hepatobiliary and Pancreatic Surgery, Conversion therapy center for Hepatobiliary and Pancreatic Tumors, First Hospital of Jiaxing, Affiliated Hospital of Jiaxing University, Jiaxing, Zhejiang, People's Republic of China
| | - Yuanyuan Zheng
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, China
| | - Dongdong Zhang
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Honghong Yu
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Genhong Yao
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
| | - Lingyun Sun
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
- Department of Rheumatology and Immunology, Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, 210008, China.
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Anhui Medical University, 218 Jixi Road, Hefei, 230022, People's Republic of China.
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4
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Armstrong SK, Hunter RW, Oosthyuzen W, Parys M, Gow AG, Schmitz SS, Dear JW, Mellanby RJ. Candidate circulating microRNA biomarkers in dogs with chronic pancreatitis. J Vet Intern Med 2024; 38:995-1004. [PMID: 38351718 PMCID: PMC10937508 DOI: 10.1111/jvim.17009] [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: 08/23/2023] [Accepted: 01/25/2024] [Indexed: 03/16/2024] Open
Abstract
BACKGROUND Pancreatitis is an important cause of disease and death in dogs. Available circulating biomarkers are not sufficiently sensitive and specific for a definitive diagnosis. HYPOTHESIS Circulating microRNAs would be differentially expressed in dogs with chronic pancreatitis and could have potential as diagnostic biomarkers. ANIMALS Healthy controls (n = 19) and dogs with naturally occurring pancreatitis (n = 17). METHODS A retrospective case-control study. Dogs with pancreatitis were included if they satisfied diagnostic criteria for pancreatitis as adjudicated by 3 experts. MicroRNA was extracted from stored serum samples and sequenced. Reads were mapped to mature microRNA sequences in the canine, mouse, and human genomes. Differentially expressed microRNAs were identified and the potential mechanistic relevance explored using Qiagen Ingenuity Pathway Analysis (IPA). RESULTS Reads mapping to 196 mature microRNA sequences were detected. Eight circulating microRNAs were significantly differentially expressed in dogs with pancreatitis (≥2-fold change and false discovery rate <0.05). Four of these mapped to the canine genome (cfa-miR-221, cfa-miR-222, cfa-miR-23a, and cfa-miR-205). Three mapped to the murine genome (mmu-miR-484, mmu-miR-6240, mmu-miR-101a-3p) and 1 to the human genome (hsa-miR-1290). Expression in dogs with pancreatitis was higher for 7 microRNAs and lower for mmu-miR-101a-3p. Qiagen IPA demonstrated a number of the differently expressed microRNAs are involved in a common pancreatic inflammatory pathway. CONCLUSIONS The significantly differentially expressed microRNAs represent promising candidates for further validation as diagnostic biomarkers for canine pancreatitis.
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Affiliation(s)
- Susan K. Armstrong
- School of Veterinary MedicineUniversity of Surrey, GuildfordSurreyUnited Kingdom
| | - Robert W. Hunter
- Edinburgh Kidney, Centre for Cardiovascular ScienceUniversity of EdinburghEdinburghUnited Kingdom
| | - Wilna Oosthyuzen
- The Royal (Dick) School of Veterinary Studies and the Roslin InstituteUniversity of EdinburghEdinburghUnited Kingdom
| | - Maciej Parys
- The Royal (Dick) School of Veterinary Studies and the Roslin InstituteUniversity of EdinburghEdinburghUnited Kingdom
| | | | - Silke Salavati Schmitz
- The Royal (Dick) School of Veterinary Studies and the Roslin InstituteUniversity of EdinburghEdinburghUnited Kingdom
| | - James W. Dear
- Centre for Precision Cell Therapy for the Liver, Lothian Health BoardQueens Medical Research InstituteEdinburghUnited Kingdom
| | - Richard J. Mellanby
- The Royal (Dick) School of Veterinary Studies and the Roslin InstituteUniversity of EdinburghEdinburghUnited Kingdom
- IdexxWetherbyUnited Kingdom
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5
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Mitrovic K, Zivotic I, Kolic I, Zakula J, Zivkovic M, Stankovic A, Jovanovic I. A preliminary study of the miRNA restitution effect on CNV-induced miRNA downregulation in CAKUT. BMC Genomics 2024; 25:218. [PMID: 38413914 PMCID: PMC10900603 DOI: 10.1186/s12864-024-10121-8] [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: 07/25/2023] [Accepted: 02/14/2024] [Indexed: 02/29/2024] Open
Abstract
BACKGROUND The majority of CAKUT-associated CNVs overlap at least one miRNA gene, thus affecting the cellular levels of the corresponding miRNA. We aimed to investigate the potency of restitution of CNV-affected miRNA levels to remediate the dysregulated expression of target genes involved in kidney physiology and development in vitro. METHODS Heterozygous MIR484 knockout HEK293 and homozygous MIR185 knockout HEK293 cell lines were used as models depicting the deletion of the frequently affected miRNA genes by CAKUT-associated CNVs. After treatment with the corresponding miRNA mimics, the levels of the target genes have been compared to the non-targeting control treatment. For both investigated miRNAs, MDM2 and PKD1 were evaluated as common targets, while additional 3 genes were investigated as targets of each individual miRNA (NOTCH3, FIS1 and APAF1 as hsa-miR-484 targets and RHOA, ATF6 and CDC42 as hsa-miR-185-5p targets). RESULTS Restitution of the corresponding miRNA levels in both knockout cell lines has induced a change in the mRNA levels of certain candidate target genes, thus confirming the potential to alleviate the CNV effect on miRNA expression. Intriguingly, HEK293 WT treatment with investigated miRNA mimics has triggered a more pronounced effect, thus suggesting the importance of miRNA interplay in different genomic contexts. CONCLUSIONS Dysregulation of multiple mRNA targets mediated by CNV-affected miRNAs could represent the underlying mechanism behind the unresolved CAKUT occurrence and phenotypic variability observed in CAKUT patients. Characterizing miRNAs located in CNVs and their potential to become molecular targets could eventually help in understanding and improving the management of CAKUT.
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Affiliation(s)
- Kristina Mitrovic
- Department of Radiobiology and Molecular Genetics, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001, Belgrade, P.O. Box 522, Serbia
| | - Ivan Zivotic
- Department of Radiobiology and Molecular Genetics, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001, Belgrade, P.O. Box 522, Serbia
| | - Ivana Kolic
- Department of Radiobiology and Molecular Genetics, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001, Belgrade, P.O. Box 522, Serbia
| | - Jelena Zakula
- Department of Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001, Belgrade, P.O. Box 522, Serbia
| | - Maja Zivkovic
- Department of Radiobiology and Molecular Genetics, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001, Belgrade, P.O. Box 522, Serbia
| | - Aleksandra Stankovic
- Department of Radiobiology and Molecular Genetics, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001, Belgrade, P.O. Box 522, Serbia
| | - Ivan Jovanovic
- Department of Radiobiology and Molecular Genetics, "Vinča" Institute of Nuclear Sciences, National Institute of the Republic of Serbia, University of Belgrade, 11001, Belgrade, P.O. Box 522, Serbia.
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Pavlakou P, Gakiopoulou H, Djudjaj S, Palamaris K, Trivyza MS, Stylianou K, Goumenos DS, Papachristou E, Papasotiriou M. Keratin Expression in Podocytopathies, ANCA-Associated Vasculitis and IgA Nephropathy. Int J Mol Sci 2024; 25:1805. [PMID: 38339083 PMCID: PMC10855225 DOI: 10.3390/ijms25031805] [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: 12/15/2023] [Revised: 01/25/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Keratins are the main components of the cell cytoskeleton of epithelial cells. Epithelial cells under stressful stimuli react by modifying their keratin expression pattern. Glomerular diseases are pathological conditions that may lead to loss of kidney function if not timely diagnosed and treated properly. This study aims to examine glomerular and tubular keratin expression in podocytopathies, ANCA-associated vasculitis, and IgA nephropathy and how this expression correlates to clinical outcomes. We included 45 patients with podocytopathies (minimal change disease and focal segmental glomerulosclerosis), ANCA-associated vasculitis, and IgA nephropathy, with or without crescentic lesions, and healthy controls. All tissues were assessed by photon microscopy and immunohistochemistry. Biopsy sections were examined for keratins 7, 8, 18, and 19 expression in the glomerular and tubulointerstitial areas separately. Moreover, we examined how keratin expression was correlated with long-term kidney function outcomes. All four studied keratins had significantly increased glomerular expression in patients with ANCA vasculitis compared to controls and MCD patients. Tubular expression of keratins 7, 8, and 19 was related to kidney outcome in all groups. Patients with crescents had higher expression of all keratins in both glomeruli and tubulointerstitium. The presence of tubular atrophy, interstitial fibrosis, mesangial hyperplasia, and interstitial inflammation did not affect keratin expression. Keratins, an abundant component of renal epithelial cells, have the potential to be featured as a biomarker for kidney function prognosis in patients with glomerular diseases.
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Affiliation(s)
- Paraskevi Pavlakou
- Department of Nephrology and Kidney Transplantation, University Hospital of Patras, 26504 Patras, Greece; (P.P.); (M.S.T.); (D.S.G.); (E.P.)
| | - Harikleia Gakiopoulou
- 1st Department of Pathology, National and Kapodistrian University of Athens Medical School, 34400 Athens, Greece
| | - Sonja Djudjaj
- Institute of Pathology, RWTH University of Aachen, 52074 Aachen, Germany
| | - Kostas Palamaris
- 1st Department of Pathology, National and Kapodistrian University of Athens Medical School, 34400 Athens, Greece
| | - Maria Stella Trivyza
- Department of Nephrology and Kidney Transplantation, University Hospital of Patras, 26504 Patras, Greece; (P.P.); (M.S.T.); (D.S.G.); (E.P.)
| | - Kostas Stylianou
- Department of Nephrology, University Hospital of Heraklion, 71500 Heraklion, Greece;
| | - Dimitrios S. Goumenos
- Department of Nephrology and Kidney Transplantation, University Hospital of Patras, 26504 Patras, Greece; (P.P.); (M.S.T.); (D.S.G.); (E.P.)
| | - Evangelos Papachristou
- Department of Nephrology and Kidney Transplantation, University Hospital of Patras, 26504 Patras, Greece; (P.P.); (M.S.T.); (D.S.G.); (E.P.)
| | - Marios Papasotiriou
- Department of Nephrology and Kidney Transplantation, University Hospital of Patras, 26504 Patras, Greece; (P.P.); (M.S.T.); (D.S.G.); (E.P.)
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7
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Zhang Y, Ding X, Guo L, Zhong Y, Xie J, Xu Y, Li H, Zheng D. Comprehensive analysis of the relationship between xanthine oxidoreductase activity and chronic kidney disease. iScience 2023; 26:107332. [PMID: 37927553 PMCID: PMC10622700 DOI: 10.1016/j.isci.2023.107332] [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: 03/01/2023] [Revised: 05/19/2023] [Accepted: 07/05/2023] [Indexed: 11/07/2023] Open
Abstract
Chronic kidney disease (CKD) is a common disease that seriously endangers human health. However, the potential relationship between xanthine oxidoreductase (XOR) activity and CKD remains unclear. In this study, we used clinical data, CKD datasets from the Gene Expression Omnibus database, and untargeted metabolomics to explain the relationship between XOR activity and CKD. First, XOR activity showed high correlation with the biomarkers of CKD, such as serum creatinine, blood urea nitrogen, uric acid, and estimated glomerular filtration rate. Then, we used least absolute shrinkage and selection operator logical regression algorithm and random forest algorithm to screen CKD molecular markers from differentially expressed genes, and the results of qRT-PCR of XDH, KOX-1, and ROMO1 were in accordance with the results of bioinformatics analyses. In addition, untargeted metabolomics analysis revealed that the purine metabolism pathway was significantly enriched in CKD patients in the simulated models of kidney fibrosis.
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Affiliation(s)
- Yiyuan Zhang
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
| | - Xiaobao Ding
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
- Department of Pharmacology, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, Jiangsu Province, China
| | - Lihao Guo
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
| | - Yanan Zhong
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
| | - Juan Xie
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
| | - Yong Xu
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
| | - Hailun Li
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
| | - Donghui Zheng
- Department of Nephrology, The Affiliated Huai’an Hospital of Xuzhou Medical University and Huai’an Second People’s Hospital, Huai’an, China
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8
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Nørregaard R, Mutsaers HAM, Frøkiær J, Kwon TH. Obstructive nephropathy and molecular pathophysiology of renal interstitial fibrosis. Physiol Rev 2023; 103:2827-2872. [PMID: 37440209 PMCID: PMC10642920 DOI: 10.1152/physrev.00027.2022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 07/05/2023] [Accepted: 07/09/2023] [Indexed: 07/14/2023] Open
Abstract
The kidneys play a key role in maintaining total body homeostasis. The complexity of this task is reflected in the unique architecture of the organ. Ureteral obstruction greatly affects renal physiology by altering hemodynamics, changing glomerular filtration and renal metabolism, and inducing architectural malformations of the kidney parenchyma, most importantly renal fibrosis. Persisting pathological changes lead to chronic kidney disease, which currently affects ∼10% of the global population and is one of the major causes of death worldwide. Studies on the consequences of ureteral obstruction date back to the 1800s. Even today, experimental unilateral ureteral obstruction (UUO) remains the standard model for tubulointerstitial fibrosis. However, the model has certain limitations when it comes to studying tubular injury and repair, as well as a limited potential for human translation. Nevertheless, ureteral obstruction has provided the scientific community with a wealth of knowledge on renal (patho)physiology. With the introduction of advanced omics techniques, the classical UUO model has remained relevant to this day and has been instrumental in understanding renal fibrosis at the molecular, genomic, and cellular levels. This review details key concepts and recent advances in the understanding of obstructive nephropathy, highlighting the pathophysiological hallmarks responsible for the functional and architectural changes induced by ureteral obstruction, with a special emphasis on renal fibrosis.
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Affiliation(s)
- Rikke Nørregaard
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
- Department of Renal Medicine, Aarhus University Hospital, Aarhus, Denmark
| | | | - Jørgen Frøkiær
- Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Tae-Hwan Kwon
- Department of Biochemistry and Cell Biology, School of Medicine, Kyungpook National University, Taegu, Korea
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9
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Daniel EA, Sommer NA, Sharma M. Polycystic kidneys: interaction of notch and renin. Clin Sci (Lond) 2023; 137:1145-1150. [PMID: 37553961 PMCID: PMC11132639 DOI: 10.1042/cs20230023] [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: 05/28/2023] [Revised: 07/05/2023] [Accepted: 07/07/2023] [Indexed: 08/10/2023]
Abstract
Polycystic kidney disease (PKD) is a developmental disorder, which either manifests in early childhood or later in life, depending on the genetic mutation one harbors. The mechanisms of cyst initiation are not well understood. Increasing literature is now suggesting that Notch signaling may play a critical role in PKD. Activation of Notch signaling is important during nephrogenesis and slows down after development. Deletion of various Notch molecules in the cap mesenchyme leads to formation of cysts and early death in mice. A new study by Belyea et al. has now found that cells of renin lineage may link Notch expression and cystic kidney disease. Here, we use our understanding of Notch signaling and PKD to speculate about the significance of these interactions.
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Affiliation(s)
- Emily A Daniel
- Department of Internal Medicine, The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas 66160, U.S.A
| | - Nicole A Sommer
- Department of Internal Medicine, The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas 66160, U.S.A
| | - Madhulika Sharma
- Department of Internal Medicine, The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, Kansas 66160, U.S.A
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10
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Ballhause TM, Jiang S, Xie W, Sevecke J, Dowling C, Dust T, Brandt S, Mertens PR, Yorgan TA, Schinke T, Frosch KH, Baranowsky A, Keller J. Fracture healing in a mouse model of Hajdu-Cheney-Syndrome with high turnover osteopenia results in decreased biomechanical stability. Sci Rep 2023; 13:11418. [PMID: 37452111 PMCID: PMC10349118 DOI: 10.1038/s41598-023-38638-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023] Open
Abstract
Notch signaling regulates cell fate in multiple tissues including the skeleton. Hajdu-Cheney-Syndrome (HCS), caused by gain-of-function mutations in the Notch2 gene, is a rare inherited disease featuring early-onset osteoporosis and increased risk for fractures and non-union. As the impact of Notch2 overactivation on fracture healing is unknown, we studied bone regeneration in mice harboring a human HCS mutation. HCS mice, displaying high turnover osteopenia in the non-fractured skeleton, exhibited only minor morphologic alterations in the progression of bone regeneration, evidenced by static radiological and histological outcome measurements. Histomorphometry showed increased osteoclast parameters in the callus of HCS mice, which was accompanied by an increased expression of osteoclast and osteoblast markers. These observations were accompanied by inferior biomechanical stability of healed femora in HCS mice. Together, our data demonstrate that structural indices of bone regeneration are normal in HCS mice, which, however, exhibit signs of increased callus turnover and display impaired biomechanical stability of healed fractures.
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Affiliation(s)
- Tobias Malte Ballhause
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.
| | - Shan Jiang
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Weixin Xie
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Jan Sevecke
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Christine Dowling
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Tobias Dust
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Sabine Brandt
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120, Magdeburg, Germany
| | - Peter R Mertens
- Department of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120, Magdeburg, Germany
| | - Timur Alexander Yorgan
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Thorsten Schinke
- Department of Osteology and Biomechanics, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Karl-Heinz Frosch
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
- Department of Trauma Surgery, Orthopedics and Sports Traumatology, BG Hospital Hamburg, 21033, Hamburg, Germany
| | - Anke Baranowsky
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Johannes Keller
- Department of Trauma and Orthopedic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany.
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11
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Wu Y, Liang M, Huang F, Cheng OH, Xiao X, Lee TH, Truong L, Cheng J. Notch Blockade Specifically in Bone Marrow-Derived FSP-1-Positive Cells Ameliorates Renal Fibrosis. Cells 2023; 12:cells12020214. [PMID: 36672147 PMCID: PMC9856686 DOI: 10.3390/cells12020214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND The infiltration of inflammatory cells during a kidney injury stimulates myofibroblast activation leading to kidney fibrosis. Fibroblast-specific protein 1 (FSP-1) positive cells have been reported as either myofibroblasts or monocytes during tissue fibrosis. The functions of FSP-1+ cells that are associated with the development of renal fibrosis and the signaling pathways that regulate FSP-1+ cell activation have not been well defined. METHODS In mice with unilateral ureteral obstruction (UUO), we characterized FSP-1+ cells and determined the role of the Notch signaling pathway in the activation of bone marrow-derived FSP-1+ cells during kidney fibrosis. RESULTS In kidneys from mice with UUO, the FSP-1+ cells accumulated significantly in the tubulointerstitial area. By using immunostaining and FSP-1 reporter mice, we found that FSP-1 was co-stained with inflammatory cell markers, but not myofibroblast markers. Results from mice with bone marrow transplantations showed that FSP-1+ cells in obstructed kidneys represent a bone marrow-derived population of inflammatory cells. In cultured FSP-1+ cells, the inhibition of Notch signaling suppressed the activation and cytokine secretion of FSP-1+ cells that were induced by LPS but not by IL-4. The specific KO or blockade of Notch signaling in bone marrow-derived FSP-1+ cells suppressed UUO-induced ECM deposition, the infiltration of FSP-1+ inflammatory cells, and cytokine production. These responses ameliorated myofibroblast accumulation and renal fibrosis in obstructed kidneys. CONCLUSION Our study reveals that most FSP-1+ cells in obstructed kidneys are activated macrophages that are derived from bone marrow and that Notch signaling activates the production of M1 cytokines in FSP-1+ monocytes/macrophages, which is important for renal inflammation and fibrosis.
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Affiliation(s)
- Yongdong Wu
- Department of Nephrology, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510000, China
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Ming Liang
- Department of Nephrology, The Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou 510000, China
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Correspondence: (M.L.); (J.C.); Tel.: +1-713-798-2698 (J.C.); Fax: +1-713-798-5010 (J.C.)
| | - Fengzhang Huang
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Owen H. Cheng
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Xiaoguang Xiao
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Tae Hoon Lee
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
| | - Luan Truong
- Department of Pathology, Houston Methodist Hospital, Houston, TX 77030, USA
| | - Jizhong Cheng
- Selzman Institute for Kidney Health, Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, TX 77030, USA
- Correspondence: (M.L.); (J.C.); Tel.: +1-713-798-2698 (J.C.); Fax: +1-713-798-5010 (J.C.)
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12
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New insights for regulatory T cell in lupus nephritis. Clin Exp Rheumatol 2022; 21:103134. [PMID: 35690245 DOI: 10.1016/j.autrev.2022.103134] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2022] [Accepted: 06/07/2022] [Indexed: 11/20/2022]
Abstract
Lupus nephritis (LN) is a complicated autoimmune disease marked by out-of-balance of immunological reactivity and immune tolerance. With the advance of immunotherapy in human disease, regulatory T (Treg) cells serve a crucial function in immune tolerance regulation and are characterized with suppression function as one of the most important research hotspots for autoimmunity diseases. In recent years, Treg cells have shown the robust potential for treatment to autoimmunity diseases like type I diabetic mellitus and rheumatoid arthritis. However, Treg cell therapy is poorly understood for LN patients. This review aims to summarize new insights for Treg-targeting techniques in LN patients. The current data regarding the biology features of Treg cells in LN patients is discussed. The propotion of Treg cells in LN patients have contradictory results regarding the use of different molecular markers. Forkhead box protein 3 (FOXP3) are hallmarks for control function of Treg cells. Treg cells can directly or indirectly target T cells and B cells by playing supressive role. The molecular targets for Treg cells in LN patients includes gene variants, miRNAs, and inflammatory related factors. Based on the current knowledge of Treg cell biology, several therapeutic strategies could be used to treat LN: cell transplantation, low dose IL-2 treatment, drugs target the balance of Treg and type 17 T helper (Th17) cells, and Chinese medicine.
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13
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Yuan Q, Tang B, Zhang C. Signaling pathways of chronic kidney diseases, implications for therapeutics. Signal Transduct Target Ther 2022; 7:182. [PMID: 35680856 PMCID: PMC9184651 DOI: 10.1038/s41392-022-01036-5] [Citation(s) in RCA: 70] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 12/11/2022] Open
Abstract
Chronic kidney disease (CKD) is a chronic renal dysfunction syndrome that is characterized by nephron loss, inflammation, myofibroblasts activation, and extracellular matrix (ECM) deposition. Lipotoxicity and oxidative stress are the driving force for the loss of nephron including tubules, glomerulus, and endothelium. NLRP3 inflammasome signaling, MAPK signaling, PI3K/Akt signaling, and RAAS signaling involves in lipotoxicity. The upregulated Nox expression and the decreased Nrf2 expression result in oxidative stress directly. The injured renal resident cells release proinflammatory cytokines and chemokines to recruit immune cells such as macrophages from bone marrow. NF-κB signaling, NLRP3 inflammasome signaling, JAK-STAT signaling, Toll-like receptor signaling, and cGAS-STING signaling are major signaling pathways that mediate inflammation in inflammatory cells including immune cells and injured renal resident cells. The inflammatory cells produce and secret a great number of profibrotic cytokines such as TGF-β1, Wnt ligands, and angiotensin II. TGF-β signaling, Wnt signaling, RAAS signaling, and Notch signaling evoke the activation of myofibroblasts and promote the generation of ECM. The potential therapies targeted to these signaling pathways are also introduced here. In this review, we update the key signaling pathways of lipotoxicity, oxidative stress, inflammation, and myofibroblasts activation in kidneys with chronic injury, and the targeted drugs based on the latest studies. Unifying these pathways and the targeted therapies will be instrumental to advance further basic and clinical investigation in CKD.
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Affiliation(s)
- Qian Yuan
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ben Tang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chun Zhang
- Department of Nephrology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430022, China.
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14
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Xu-Dubois Y, Kavvadas P, Keuylian Z, Hertig A, Rondeau E, Chatziantoniou C. Notch3 expression in capillary pericytes predicts worse graft outcome in human renal grafts with antibody-mediated rejection. J Cell Mol Med 2022; 26:3203-3212. [PMID: 35611804 PMCID: PMC9170800 DOI: 10.1111/jcmm.17325] [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: 11/25/2021] [Revised: 03/04/2022] [Accepted: 03/22/2022] [Indexed: 11/29/2022] Open
Abstract
Microvasculature consisting of endothelial cells and pericytes is the main site of injury during antibody-mediated rejection (ABMR) of renal grafts. Little is known about the mechanisms of activation of pericytes in this pathology. We have found recently that activation of Notch3, a mediator of vascular smooth muscle cell proliferation and dedifferentiation, promotes renal inflammation and fibrosis and aggravates progression of renal disease. Therefore, we studied the pericyte expression of Notch3 in 49 non-selected renal graft biopsies (32 for clinical cause, 17 for graft surveillance). We analysed its relationship with patients' clinical and morphological data, and compared with the expression of partial endothelial mesenchymal transition (pEndMT) markers, known to reflect endothelial activation during ABMR. Notch3 was de novo expressed in pericytes of grafts with ABMR, and was significantly correlated with the microcirculation inflammation scores of peritubular capillaritis and glomerulitis and with the expression of pEndMT markers. Notch3 expression was also associated with graft dysfunction and proteinuria at the time of biopsy and in the long term. Multivariate analysis confirmed pericyte expression of Notch3 as an independent risk factor predicting graft loss. These data suggest that Notch3 is activated in the pericytes of renal grafts with ABMR and is associated with poor graft outcome.
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Affiliation(s)
- Yichun Xu-Dubois
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Public Health, Assistance Publique-Hôpitaux de Paris (AP-HP), Tenon Hospital, Paris, France
| | - Panagiotis Kavvadas
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France
| | - Zela Keuylian
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France
| | - Alexandre Hertig
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France.,Nephrology Department, Foch Hospital, Suresnes, France
| | - Eric Rondeau
- INSERM UMRS 1155, Tenon Hospital, Paris, France.,Sorbonne University, Paris, France.,Intensive Care Nephrology and Transplantation Department, Tenon Hospital, APHP, Paris, France
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15
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Driving role of macrophages in transition from acute kidney injury to chronic kidney disease. Chin Med J (Engl) 2022; 135:757-766. [PMID: 35671177 PMCID: PMC9276339 DOI: 10.1097/cm9.0000000000002100] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Acute kidney injury (AKI), characterized by acute renal dysfunction, is an increasingly common clinical problem and an important risk factor in the subsequent development of chronic kidney disease (CKD). Regardless of the initial insults, the progression of CKD after AKI involves multiple types of cells, including renal resident cells and immune cells such as macrophages. Recently, the involvements of macrophages in AKI-to-CKD transition have garnered significant attention. Furthermore, substantial progress has also been made in elucidating the pathophysiological functions of macrophages from the acute kidney to repair or fibrosis. In this review, we highlight current knowledge regarding the roles and mechanisms of macrophage activation and phenotypic polarization, and transdifferentiation in the development of AKI-to-CKD transition. In addition, the potential of macrophage-based therapy for preventing AKI-to-CKD transition is also discussed.
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16
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Activation of Notch3 in Renal Tubular Cells Leads to Progressive Cystic Kidney Disease. Int J Mol Sci 2022; 23:ijms23020884. [PMID: 35055068 PMCID: PMC8778905 DOI: 10.3390/ijms23020884] [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: 12/21/2021] [Revised: 01/06/2022] [Accepted: 01/11/2022] [Indexed: 11/18/2022] Open
Abstract
Background: Polycystic kidney disease (PKD) is a genetic disorder affecting millions of people worldwide that is characterized by fluid-filled cysts and leads to end-stage renal disease (ESRD). The hallmarks of PKD are proliferation and dedifferentiation of tubular epithelial cells, cellular processes known to be regulated by Notch signaling. Methods: We found increased Notch3 expression in human PKD and renal cell carcinoma biopsies. To obtain insight into the underlying mechanisms and the functional consequences of this abnormal expression, we developed a transgenic mouse model with conditional overexpression of the intracellular Notch3 (ICN3) domain specifically in renal tubules. We evaluated the alterations in renal function (creatininemia, BUN) and structure (cysts, fibrosis, inflammation) and measured the expression of several genes involved in Notch signaling and the mechanisms of inflammation, proliferation, dedifferentiation, fibrosis, injury, apoptosis and regeneration. Results: After one month of ICN3 overexpression, kidneys were larger with tubules grossly enlarged in diameter, with cell hypertrophy and hyperplasia, exclusively in the outer stripe of the outer medulla. After three months, mice developed numerous cysts in proximal and distal tubules. The cysts had variable sizes and were lined with a single- or multilayered, flattened, cuboid or columnar epithelium. This resulted in epithelial hyperplasia, which was observed as protrusions into the cystic lumen in some of the renal cysts. The pre-cystic and cystic epithelium showed increased expression of cytoskeletal filaments and markers of epithelial injury and dedifferentiation. Additionally, the epithelium showed increased proliferation with an aberrant orientation of the mitotic spindle. These phenotypic tubular alterations led to progressive interstitial inflammation and fibrosis. Conclusions: In summary, Notch3 signaling promoted tubular cell proliferation, the alignment of cell division, dedifferentiation and hyperplasia, leading to cystic kidney diseases and pre-neoplastic lesions.
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Abstract
Fibroblasts are important cells for the support of homeostatic tissue function. In inflammatory diseases such as rheumatoid arthritis and inflammatory bowel disease, fibroblasts take on different roles (a) as inflammatory cells themselves and (b) in recruiting leukocytes, driving angiogenesis, and enabling chronic inflammation in tissues. Recent advances in single-cell profiling techniques have transformed the ability to examine fibroblast states and populations in inflamed tissues, providing evidence of previously underappreciated heterogeneity and disease-associated fibroblast populations. These studies challenge the preconceived notion that fibroblasts are homogeneous and provide new insights into the role of fibroblasts in inflammatory pathology. In addition, new molecular insights into the mechanisms of fibroblast activation reveal powerful cell-intrinsic amplification loops that synergize with primary fibroblast stimuli to result in striking responses. In this Review, we focus on recent developments in our understanding of fibroblast heterogeneity and fibroblast pathology across tissues and diseases in rheumatoid arthritis and inflammatory bowel diseases. We highlight new approaches to, and applications of, single-cell profiling techniques and what they teach us about fibroblast biology. Finally, we address how these insights could lead to the development of novel therapeutic approaches to targeting fibroblasts in disease.
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18
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Kung VL, Sandhu R, Haas M, Huang E. Chronic active T cell–mediated rejection is variably responsive to immunosuppressive therapy. Kidney Int 2021; 100:391-400. [DOI: 10.1016/j.kint.2021.03.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/24/2021] [Accepted: 03/09/2021] [Indexed: 02/07/2023]
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19
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Shah A, Lindquist JA, Rosendahl L, Schmitz I, Mertens PR. Novel Insights into YB-1 Signaling and Cell Death Decisions. Cancers (Basel) 2021; 13:3306. [PMID: 34282755 PMCID: PMC8269159 DOI: 10.3390/cancers13133306] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/25/2021] [Accepted: 06/29/2021] [Indexed: 12/13/2022] Open
Abstract
YB-1 belongs to the evolutionarily conserved cold-shock domain protein family of RNA binding proteins. YB-1 is a well-known transcriptional and translational regulator, involved in cell cycle progression, DNA damage repair, RNA splicing, and stress responses. Cell stress occurs in many forms, e.g., radiation, hyperthermia, lipopolysaccharide (LPS) produced by bacteria, and interferons released in response to viral infection. Binding of the latter factors to their receptors induces kinase activation, which results in the phosphorylation of YB-1. These pathways also activate the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB), a well-known transcription factor. NF-κB is upregulated following cellular stress and orchestrates inflammatory responses, cell proliferation, and differentiation. Inflammation and cancer are known to share common mechanisms, such as the recruitment of infiltrating macrophages and development of an inflammatory microenvironment. Several recent papers elaborate the role of YB-1 in activating NF-κB and signaling cell survival. Depleting YB-1 may tip the balance from survival to enhanced apoptosis. Therefore, strategies that target YB-1 might be a viable therapeutic option to treat inflammatory diseases and improve tumor therapy.
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Affiliation(s)
- Aneri Shah
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (A.S.); (L.R.); (P.R.M.)
| | - Jonathan A. Lindquist
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (A.S.); (L.R.); (P.R.M.)
| | - Lars Rosendahl
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (A.S.); (L.R.); (P.R.M.)
| | - Ingo Schmitz
- Department of Molecular Immunology, ZKF2, Ruhr-University Bochum, 44801 Bochum, Germany;
| | - Peter R. Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (A.S.); (L.R.); (P.R.M.)
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20
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Marquez-Exposito L, Rodrigues-Diez RR, Rayego-Mateos S, Fierro-Fernandez M, Rodrigues-Diez R, Orejudo M, Santos-Sanchez L, Blanco EM, Laborda J, Mezzano S, Lamas S, Lavoz C, Ruiz-Ortega M. Deletion of delta-like 1 homologue accelerates renal inflammation by modulating the Th17 immune response. FASEB J 2021; 35:e21213. [PMID: 33368614 DOI: 10.1096/fj.201903131r] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 10/30/2020] [Accepted: 11/10/2020] [Indexed: 12/12/2022]
Abstract
Preclinical studies have demonstrated that activation of the NOTCH pathway plays a key role in the pathogenesis of kidney damage. There is currently no information on the role of the Delta-like homologue 1 (DLK1), a NOTCH inhibitor, in the regulation of renal damage. Here, we investigated the contribution of DLK1 to experimental renal damage and the underlying molecular mechanisms. Using a Dlk1-null mouse model in the experimental renal damage of unilateral ureteral obstruction, we found activation of NOTCH, as shown by increased nuclear translocation of the NOTCH1 intracellular domain, and upregulation of Dlk2/hey-1 expression compared to wild-type (WT) littermates. NOTCH1 over-activation in Dlk1-null injured kidneys was associated with a higher inflammatory response, characterized by infiltration of inflammatory cells, mainly CD4/IL17A + lymphocytes, and activation of the Th17 immune response. Furthermore, pharmacological NOTCH blockade inhibited the transcription factors controlling Th17 differentiation and gene expression of the Th17 effector cytokine IL-17A and other related-inflammatory factors, linked to a diminution of inflammation in the injured kidneys. We propose that the non-canonical NOTCH ligand DLK1 acts as a NOTCH antagonist in renal injury regulating the Th17-mediated inflammatory response.
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Affiliation(s)
- Laura Marquez-Exposito
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz. Universidad Autónoma de Madrid, Madrid, Spain.,Red de Investigación Renal (REDINREN), Madrid, Spain
| | - Raul R Rodrigues-Diez
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz. Universidad Autónoma de Madrid, Madrid, Spain.,Red de Investigación Renal (REDINREN), Madrid, Spain
| | - Sandra Rayego-Mateos
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz. Universidad Autónoma de Madrid, Madrid, Spain.,Vascular and Renal Translational Research Group, Institut de Recerca Biomèdica de Lleida IRBLleida, Lleida, Spain
| | | | - Raquel Rodrigues-Diez
- Departamento de Farmacología, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Macarena Orejudo
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz. Universidad Autónoma de Madrid, Madrid, Spain.,Red de Investigación Renal (REDINREN), Madrid, Spain
| | - Laura Santos-Sanchez
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz. Universidad Autónoma de Madrid, Madrid, Spain.,Red de Investigación Renal (REDINREN), Madrid, Spain
| | - Eva Maria Blanco
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Madrid, Spain
| | - Jorge Laborda
- Biochemistry and Molecular Biology Branch, Department of Inorganic and Organic Chemistry and Biochemistry, University of Castilla-La Mancha, Spanish National Research Council (CSIC), Albacete, Spain
| | - Sergio Mezzano
- Division of Nephrology, School of Medicine, Universidad Austral, Valdivia, Chile
| | - Santiago Lamas
- Centro de Biología Molecular "Severo Ochoa" (CSIC-UAM), Madrid, Spain
| | - Carolina Lavoz
- Division of Nephrology, School of Medicine, Universidad Austral, Valdivia, Chile
| | - Marta Ruiz-Ortega
- Cellular and Molecular Biology in Renal and Vascular Pathology, IIS-Fundación Jiménez Díaz. Universidad Autónoma de Madrid, Madrid, Spain.,Red de Investigación Renal (REDINREN), Madrid, Spain
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21
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Effects of HIF-1α on renal fibrosis in cisplatin-induced chronic kidney disease. Clin Sci (Lond) 2021; 135:1273-1288. [PMID: 33997886 DOI: 10.1042/cs20210061] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 05/11/2021] [Accepted: 05/17/2021] [Indexed: 12/20/2022]
Abstract
Cisplatin (Cis) can cause chronic kidney disease (CKD) and promote renal fibrosis, but the underlying mechanism is not fully understood. Hypoxia inducible factor-1α (HIF-1α) can promote renal fibrosis in some kidney diseases, but its role in Cis-induced CKD is still unknown. Notch-1 is a recognized molecule that promotes renal fibrosis under pathological circumstances, and evidence shows that HIF-1α and Notch-1 are closely related to each other. In the present study, mice with HIF-1α gene knockout in proximal tubular cells (PTCs) (PT-HIF-1α-KO) were generated and treated with Cis to induce CKD. A human proximal tubular cell line (HK-2) and primary mouse PTCs were used for in vitro studies. The results showed that HIF-1α was increased in the kidneys of Cis-treated wild-type mice, accompanied by elevated Notch-1, Notch-1 intracellular domain (N1ICD), Hes-1 and renal fibrosis. However, these alterations were partially reversed in PT-HIF-1α-KO mice. Similar results were observed in HK-2 cells and primary mouse PTCs. In addition, treating the cells with Cis induced a marked interaction of HIF-1α and N1ICD. Further inhibiting Notch-1 significantly reduced cellular fibrogenesis but did not affect HIF-1α expression. The data suggested that HIF-1α could promote renal fibrosis in Cis-induced CKD by activating Notch-1 both transcriptionally and post-transcriptionally and that HIF-1α may serve as a potential therapeutic target for Cis-induced CKD.
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Vera L, Garcia-Olloqui P, Petri E, Viñado AC, Valera PS, Blasco-Iturri Z, Calvo IA, Cenzano I, Ruppert C, Zulueta JJ, Prosper F, Saez B, Pardo-Saganta A. Notch3 Deficiency Attenuates Pulmonary Fibrosis and Impedes Lung-Function Decline. Am J Respir Cell Mol Biol 2021; 64:465-476. [PMID: 33493092 DOI: 10.1165/rcmb.2020-0516oc] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 12/30/2020] [Indexed: 01/05/2023] Open
Abstract
Fibroblast activation includes differentiation to myofibroblasts and is a key feature of organ fibrosis. The Notch pathway has been involved in myofibroblast differentiation in several tissues, including the lung. Here, we identify a subset of collagen-expressing cells in the lung that exhibit Notch3 activity at homeostasis. After injury, this activation increases, being found in αSMA-expressing myofibroblasts in the mouse and human fibrotic lung. Although previous studies suggest a contribution of Notch3 in stromal activation, in vivo evidence of the role of Notch3 in lung fibrosis remains unknown. In this study, we examine the effects of Notch3 deletion in pulmonary fibrosis and demonstrate that Notch3-deficient lungs are protected from lung injury with significantly reduced collagen deposition after bleomycin administration. The induction of profibrotic genes is reduced in bleomycin-treated Notch3-knockout lungs that consistently present fewer αSMA-positive myofibroblasts. As a result, the volume of healthy lung tissue is higher and lung function is improved in the absence of Notch3. Using in vitro cultures of lung primary fibroblasts, we confirmed that Notch3 participates in their survival and differentiation. Thus, Notch3 deficiency mitigates the development of lung fibrosis because of its role in mediating fibroblast activation. Our findings reveal a previously unidentified mechanism underlying lung fibrogenesis and provide a potential novel therapeutic approach to target pulmonary fibrosis.
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Affiliation(s)
| | | | - Eva Petri
- Department of Regenerative Medicine and
| | - Ana Cristina Viñado
- Department of Hematology-Oncology, Center for Applied Medical Research, Universidad de Navarra, Pamplona, Spain
| | | | - Zuriñe Blasco-Iturri
- Molecular and Functional Biomarkers Lab, Center for Cooperative Research in Biomaterials (CIC BiomaGUNE), San Sebastián, Spain
| | - Isabel A Calvo
- Department of Hematology-Oncology, Center for Applied Medical Research, Universidad de Navarra, Pamplona, Spain
| | - Itziar Cenzano
- Department of Hematology-Oncology, Center for Applied Medical Research, Universidad de Navarra, Pamplona, Spain
| | - Clemens Ruppert
- Biobank of the Universities of Giessen and Marburg Lung Center and the European Idiopathic Pulmonary Fibrosis Registry, German Center for Lung Research, Giessen, Germany; and
| | - Javier J Zulueta
- Pulmonary Department, Clinica Universidad de Navarra, Pamplona, Spain
| | - Felipe Prosper
- Department of Regenerative Medicine and
- Department of Hematology-Oncology, Center for Applied Medical Research, Universidad de Navarra, Pamplona, Spain
| | - Borja Saez
- Department of Hematology-Oncology, Center for Applied Medical Research, Universidad de Navarra, Pamplona, Spain
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23
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Craven KE, Gökmen-Polar Y, Badve SS. CIBERSORT analysis of TCGA and METABRIC identifies subgroups with better outcomes in triple negative breast cancer. Sci Rep 2021; 11:4691. [PMID: 33633150 PMCID: PMC7907367 DOI: 10.1038/s41598-021-83913-7] [Citation(s) in RCA: 51] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 02/04/2021] [Indexed: 02/07/2023] Open
Abstract
Studies have shown that the presence of tumor infiltrating lymphocytes (TILs) in Triple Negative Breast Cancer (TNBC) is associated with better prognosis. However, the molecular mechanisms underlying these immune cell differences are not well delineated. In this study, analysis of hematoxylin and eosin images from The Cancer Genome Atlas (TCGA) breast cancer cohort failed to show a prognostic benefit of TILs in TNBC, whereas CIBERSORT analysis, which quantifies the proportion of each immune cell type, demonstrated improved overall survival in TCGA TNBC samples with increased CD8 T cells or CD8 plus CD4 memory activated T cells and in Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) TNBC samples with increased gamma delta T cells. Twenty-five genes showed mutational frequency differences between the TCGA high and low T cell groups, and many play important roles in inflammation or immune evasion (ATG2B, HIST1H2BC, PKD1, PIKFYVE, TLR3, NOTCH3, GOLGB1, CREBBP). Identification of these mutations suggests novel mechanisms by which the cancer cells attract immune cells and by which they evade or dampen the immune system during the cancer immunoediting process. This study suggests that integration of mutations with CIBERSORT analysis could provide better prediction of outcomes and novel therapeutic targets in TNBC cases.
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Affiliation(s)
- Kelly E Craven
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, 21287, USA
| | - Yesim Gökmen-Polar
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Sunil S Badve
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA. .,Department of Medicine, Indiana University School of Medicine, Indianapolis, IN, 46202, USA. .,Indiana University Melvin and Bren Simon Cancer Center, Indianapolis, IN, 46202, USA.
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24
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Relevance of Notch Signaling for Bone Metabolism and Regeneration. Int J Mol Sci 2021; 22:ijms22031325. [PMID: 33572704 PMCID: PMC7865281 DOI: 10.3390/ijms22031325] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/24/2021] [Accepted: 01/26/2021] [Indexed: 02/06/2023] Open
Abstract
Notch1-4 receptors and their signaling pathways are expressed in almost all organ systems and play a pivotal role in cell fate decision by coordinating cell proliferation, differentiation and apoptosis. Differential expression and activation of Notch signaling pathways has been observed in a variety of organs and tissues under physiological and pathological conditions. Bone tissue represents a dynamic system, which is constantly remodeled throughout life. In bone, Notch receptors have been shown to control remodeling and regeneration. Numerous functions have been assigned to Notch receptors and ligands, including osteoblast differentiation and matrix mineralization, osteoclast recruitment and cell fusion and osteoblast/osteoclast progenitor cell proliferation. The expression and function of Notch1-4 in the skeleton are distinct and closely depend on the temporal expression at different differentiation stages. This review addresses the current knowledge on Notch signaling in adult bone with emphasis on metabolism, bone regeneration and degenerative skeletal disorders, as well as congenital disorders associated with mutant Notch genes. Moreover, the crosstalk between Notch signaling and other important pathways involved in bone turnover, including Wnt/β-catenin, BMP and RANKL/OPG, are outlined.
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25
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Yu C, Xiong C, Tang J, Hou X, Liu N, Bayliss G, Zhuang S. Histone demethylase JMJD3 protects against renal fibrosis by suppressing TGFβ and Notch signaling and preserving PTEN expression. Am J Cancer Res 2021; 11:2706-2721. [PMID: 33456568 PMCID: PMC7806480 DOI: 10.7150/thno.48679] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Accepted: 11/26/2020] [Indexed: 12/11/2022] Open
Abstract
Rationale: The Jumonji domain containing-3 (JMJD3), a specific histone demethylase for trimethylation on histone H3 lysine 27 (H3K27me3), is associated with the pathogenesis of many diseases, but its role in renal fibrosis remains unexplored. Here we examined the role of JMJD3 and mechanisms involved in the activation of renal fibroblasts and development of renal fibrosis. Methods: Murine models of 5/6 surgical nephrectomy (SNx) and ureteral unilateral obstruction (UUO) were used to assess the effect of a specific JMJD3 inhibitor, GSKJ4, and genetic deletion of JMJD3 from FOXD1 stroma-derived renal interstitial cells on the development of renal fibrosis and activation of renal interstitial fibroblasts. Cultured rat renal interstitial fibroblasts (NRK-49F) and mouse renal tubular epithelial cells (mTECs) were also used to examine JMJD3-mediated activation of profibrotic signaling. Results: JMJD3 and H3K27me3 expression levels were upregulated in the kidney of mice subjected to SNx 5/6 and UUO. Pharmacological inhibition of JMJD3 with GSKJ4 or genetic deletion of JMJD3 led to worsening of renal dysfunction as well as increased deposition of extracellular matrix proteins and activation of renal interstitial fibroblasts in the injured kidney. This was coincident with decreased expression of Smad7 and enhanced expression of H3K27me3, transforming growth factor β1 (TGFβ1), Smad3, Notch1, Notch3 and Jagged1. Inhibition of JMJD3 by GSK J4 or its specific siRNA also resulted in the similar responses in cultured NRK-49F and mTECs exposed to serum or TGFβ1. Moreover, JMJD3 inhibition augmented phosphorylation of AKT and ERK1/2 in vivo and in vitro. Conclusion: These results indicate that JMJD3 confers anti-fibrotic effects by limiting activation of multiple profibrotic signaling pathways and suggest that JMJD3 modulation may have therapeutic effects for chronic kidney disease.
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26
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Liang Y, Liu H, Fang Y, Lin P, Lu Z, Zhang P, Jiao X, Teng J, Ding X, Dai Y. Salvianolate ameliorates oxidative stress and podocyte injury through modulation of NOX4 activity in db/db mice. J Cell Mol Med 2021; 25:1012-1023. [PMID: 33332718 PMCID: PMC7812253 DOI: 10.1111/jcmm.16165] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 11/13/2020] [Accepted: 11/19/2020] [Indexed: 12/22/2022] Open
Abstract
Podocyte injury is associated with albuminuria and the progression of diabetic nephropathy (DN). NADPH oxidase 4 (NOX4) is the main source of reactive oxygen species (ROS) in the kidney and NOX4 is up-regulated in podocytes in response to high glucose. In the present study, the effects of Salvianolate on DN and its underlying mechanisms were investigated in diabetic db/db mice and human podocytes. We confirmed that the Salvianolate administration exhibited similar beneficial effects as the NOX1/NOX4 inhibitor GKT137831 treated diabetic mice, as reflected by attenuated albuminuria, reduced podocyte loss and mesangial matrix accumulation. We further observed that Salvianolate attenuated the increase of Nox4 protein, NOX4-based NADPH oxidase activity and restored podocyte loss in the diabetic kidney. In human podocytes, NOX4 was predominantly localized to mitochondria and Sal B treatment blocked HG-induced mitochondrial NOX4 derived superoxide generation and thereby ameliorating podocyte apoptosis, which can be abrogated by AMPK knockdown. Therefore, our results suggest that Sal B possesses the reno-protective capabilities in part through AMPK-mediated control of NOX4 expression. Taken together, our results identify that Salvianolate could prevent glucose-induced oxidative podocyte injury through modulation of NOX4 activity in DN and have a novel therapeutic potential for DN.
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Affiliation(s)
- Yiran Liang
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Hong Liu
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Yi Fang
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Pan Lin
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Zhihui Lu
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Pan Zhang
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Xiaoyan Jiao
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Jie Teng
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Xiaoqiang Ding
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
| | - Yan Dai
- Department of NephrologyZhongshan HospitalFudan UniversityShanghaiChina
- Shanghai Institute of Kidney and DialysisShanghaiChina
- Shanghai Key Laboratory of Kidney and Blood PurificationShanghaiChina
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27
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The Role of Notch3 Signaling in Kidney Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2020; 2020:1809408. [PMID: 33149805 PMCID: PMC7603621 DOI: 10.1155/2020/1809408] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 08/28/2020] [Accepted: 10/04/2020] [Indexed: 12/17/2022]
Abstract
Notch receptors are transmembrane proteins that are members of the epidermal growth factor-like family. These receptors are widely expressed on the cell surface and are highly conserved. Binding to ligands on adjacent cells results in cleavage of these receptors, and their intracellular domains translocate into the nucleus, where target gene transcription is initiated. In the mammalian kidney, Notch receptors are activated during nephrogenesis and become silenced in the normal kidney after birth. Reactivation of Notch signaling in the adult kidney could be due to the genetic activation of Notch signaling or kidney injury. Notch3 is a mammalian heterodimeric transmembrane receptor in the Notch gene family. Notch3 activation is significantly increased in various glomerular diseases, renal tubulointerstitial diseases, glomerular sclerosis, and renal fibrosis and mediates disease occurrence and development. Here, we discuss numerous recently published papers describing the role of Notch3 signaling in kidney disease.
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28
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Hessman CL, Hildebrandt J, Shah A, Brandt S, Bock A, Frye BC, Raffetseder U, Geffers R, Brunner-Weinzierl MC, Isermann B, Mertens PR, Lindquist JA. YB-1 Interferes with TNFα-TNFR Binding and Modulates Progranulin-Mediated Inhibition of TNFα Signaling. Int J Mol Sci 2020; 21:ijms21197076. [PMID: 32992926 PMCID: PMC7583764 DOI: 10.3390/ijms21197076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 09/21/2020] [Accepted: 09/22/2020] [Indexed: 12/23/2022] Open
Abstract
Inflammation and an influx of macrophages are common elements in many diseases. Among pro-inflammatory cytokines, tumor necrosis factor α (TNFα) plays a central role by amplifying the cytokine network. Progranulin (PGRN) is a growth factor that binds to TNF receptors and interferes with TNFα-mediated signaling. Extracellular PGRN is processed into granulins by proteases released from immune cells. PGRN exerts anti-inflammatory effects, whereas granulins are pro-inflammatory. The factors coordinating these ambivalent functions remain unclear. In our study, we identify Y-box binding protein-1 (YB-1) as a candidate for this immune-modulating activity. Using a yeast-2-hybrid assay with YB-1 protein as bait, clones encoding for progranulin were selected using stringent criteria for strong interaction. We demonstrate that at physiological concentrations, YB-1 interferes with the binding of TNFα to its receptors in a dose-dependent manner using a flow cytometry-based binding assay. We show that YB-1 in combination with progranulin interferes with TNFα-mediated signaling, supporting the functionality with an NF-κB luciferase reporter assay. Together, we show that YB-1 displays immunomodulating functions by affecting the binding of TNFα to its receptors and influencing TNFα-mediated signaling via its interaction with progranulin.
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Affiliation(s)
- Christopher L. Hessman
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Josephine Hildebrandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Aneri Shah
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Sabine Brandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Antonia Bock
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
| | - Björn C. Frye
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, 52074 Aachen, Germany; (B.C.F.); (U.R.)
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, 52074 Aachen, Germany; (B.C.F.); (U.R.)
| | - Robert Geffers
- Genome Analytics Research Group, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany;
| | | | - Berend Isermann
- Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, University Hospital Leipzig, 04103 Leipzig, Germany;
| | - Peter R. Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
- Correspondence: (P.R.M.); (J.A.L.); Tel.: +49-391-6713236 (P.R.M.); +49-391-6724703 (J.A.L.)
| | - Jonathan A. Lindquist
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University, 39120 Magdeburg, Germany; (C.L.H.); (J.H.); (A.S.); (S.B.); (A.B.)
- Correspondence: (P.R.M.); (J.A.L.); Tel.: +49-391-6713236 (P.R.M.); +49-391-6724703 (J.A.L.)
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29
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Brandt S, Ballhause TM, Bernhardt A, Becker A, Salaru D, Le-Deffge HM, Fehr A, Fu Y, Philipsen L, Djudjaj S, Müller AJ, Kramann R, Ibrahim M, Geffers R, Siebel C, Isermann B, Heidel FH, Lindquist JA, Mertens PR. Fibrosis and Immune Cell Infiltration Are Separate Events Regulated by Cell-Specific Receptor Notch3 Expression. J Am Soc Nephrol 2020; 31:2589-2608. [PMID: 32859670 DOI: 10.1681/asn.2019121289] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 07/12/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Kidney injuries that result in chronic inflammation initiate crosstalk between stressed resident cells and infiltrating immune cells. In animal models, whole-body receptor Notch3 deficiency protects from leukocyte infiltration and organ fibrosis. However, the relative contribution of Notch3 expression in tissue versus infiltrating immune cells is unknown. METHODS Chimeric mice deficient for Notch3 in hematopoietic cells and/or resident tissue cells were generated, and kidney fibrosis and inflammation after unilateral ureteral obstruction (UUO) were analyzed. Adoptive transfer of labeled bone marrow-derived cells validated the results in a murine Leishmania ear infection model. In vitro adhesion assays, integrin activation, and extracellular matrix production were analyzed. RESULTS Fibrosis follows UUO, but inflammatory cell infiltration mostly depends upon Notch3 expression in hematopoietic cells, which coincides with an enhanced proinflammatory milieu (e.g., CCL2 and CCL5 upregulation). Notch3 expression on CD45+ leukocytes plays a prominent role in efficient cell transmigration. Functionally, leukocyte adhesion and integrin activation are abrogated in the absence of receptor Notch3. Chimeric animal models also reveal that tubulointerstitial fibrosis develops, even in the absence of prominent leukocyte infiltrates after ureteral obstruction. Deleting Notch3 receptors on resident cells blunts kidney fibrosis, ablates NF-κB signaling, and lessens matrix deposition. CONCLUSIONS Cell-specific receptor Notch3 signaling independently orchestrates leukocyte infiltration and organ fibrosis. Interference with Notch3 signaling may present a novel therapeutic approach in inflammatory as well as fibrotic diseases.
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Affiliation(s)
- Sabine Brandt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany
| | - Tobias M Ballhause
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Anja Bernhardt
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany
| | - Annika Becker
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Delia Salaru
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Hien Minh Le-Deffge
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Alexander Fehr
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany
| | - Yan Fu
- Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany.,Institute of Molecular and Clinical Immunology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Lars Philipsen
- Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany.,Institute of Molecular and Clinical Immunology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Sonja Djudjaj
- Institute of Pathology, Rheinisch-Westfälische Technische Hochschule Aachen University, Aachen, Germany
| | - Andreas J Müller
- Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany.,Institute of Molecular and Clinical Immunology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Intravital Microscopy of Infection and Immunity Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Rafael Kramann
- Department of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule Aachen University, Aachen, Germany.,Department of Internal Medicine, Nephrology and Transplantation, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Mahmoud Ibrahim
- Department of Nephrology and Clinical Immunology, Rheinisch-Westfälische Technische Hochschule Aachen University, Aachen, Germany
| | - Robert Geffers
- Genome Analytics Research Group, Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Chris Siebel
- Department of Discovery Oncology, Genentech, Inc., South San Francisco, California
| | - Berend Isermann
- Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany.,Institute of Clinical Chemistry and Pathobiochemistry, Otto-von-Guericke University Magdeburg, Magdeburg, Germany
| | - Florian H Heidel
- Department of Hematology and Oncology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Department of Internal Medicine II, Hematology and Oncology, Friedrich Schiller University Medical Center, Jena, Germany.,Leibniz Institute on Aging, Fritz Lipmann Institute, Jena, Germany
| | - Jonathan A Lindquist
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany.,Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany
| | - Peter R Mertens
- Clinic of Nephrology and Hypertension, Diabetes and Endocrinology, Otto-von-Guericke University Magdeburg, Magdeburg, Germany .,Health Campus Immunology, Infectiology and Inflammation (GCI3), Otto-von-Guericke University, Magdeburg, Germany
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30
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Li M, Dong X, Chen S, Wang W, Yang C, Li B, Liang D, Yang W, Liu X, Yang X. Genetic polymorphisms and transcription profiles associated with intracranial aneurysm: a key role for NOTCH3. Aging (Albany NY) 2020; 11:5173-5191. [PMID: 31339861 PMCID: PMC6682524 DOI: 10.18632/aging.102111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Accepted: 07/16/2019] [Indexed: 12/14/2022]
Abstract
Intracranial aneurysm (IA) incidence is about 1~2%. However, the specific mechanisms of IA onset and development need further study. Our objective was to discover novel IA-related genes to determine possible etiologies further. We performed next-generation sequencing on nineteen Chinese patients with familial IA and one patient with sporadic IA. We obtained mRNA expression data of 129 samples from Gene Expression Omnibus (GEO) and made statistical computing to discover differentially expressed genes (DEGs). The screened IA-related gene NOTCH3 was determined by bioinformatic data mining. We verified the IA-related indicators of NOTCH3. Association was found between IA and the NOTCH3 SNPs rs779314594, rs200504060 and rs2285981. Levels of NOTCH3 mRNA were lower in IA tissue than in control tissue, but higher in peripheral blood neutrophils from IA patients than in neutrophils from controls. Levels of NOTCH3 protein were lower in IA tissue than in cerebral artery tissue. NOTCH3 also decreased the expression of angiogenesis factors in human umbilical vein endothelial cells. Variation in NOTCH3 and alteration of its expression in cerebral artery or neutrophils may contribute to IA. Our findings also describe a bioinformatic-experimental approach that may prove useful for probing the pathophysiology of other complex diseases.
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Affiliation(s)
- Mengqi Li
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin 300052, China.,Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Xinlong Dong
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin 300052, China
| | - Shi Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin 300052, China.,Department of Neurosurgery, Fuzhou Second Hospital Affiliated to Xiamen University, Fuzhou 350007, China
| | - Weihan Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin 300052, China
| | - Chao Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin 300052, China
| | - Bochuan Li
- Collaborative Innovation Center of Tianjin for Medical Epigenetics and Department of Physiology and Pathophysiology, Tianjin Medical University, Tianjin 300052, China
| | - Degang Liang
- Department of Cardiovascular Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Weidong Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin 300052, China
| | - Xiaozhi Liu
- Department of Neurosurgery, Tianjin Fifth Central Hospital, Tianjin 300450, China
| | - Xinyu Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, China.,Tianjin Neurological Institute, Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education, Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin 300052, China
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31
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Novel use for old drugs: The emerging role of artemisinin and its derivatives in fibrosis. Pharmacol Res 2020; 157:104829. [DOI: 10.1016/j.phrs.2020.104829] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 04/07/2020] [Accepted: 04/10/2020] [Indexed: 12/15/2022]
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Bai Y, Wang W, Yin P, Gao J, Na L, Sun Y, Wang Z, Zhang Z, Zhao C. Ruxolitinib Alleviates Renal Interstitial Fibrosis in UUO Mice. Int J Biol Sci 2020; 16:194-203. [PMID: 31929748 PMCID: PMC6949153 DOI: 10.7150/ijbs.39024] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 10/15/2019] [Indexed: 02/06/2023] Open
Abstract
Ruxolitinib is a selective inhibitor of Jak1/2. Downstream signaling pathways of Jak, such as Stat3 and Akt/mTOR, are overactivated and contribute to renal interstitial fibrosis. Therefore, we explored the effect of Ruxolitinib on this pathological process. Unilateral ureteral obstruction (UUO) models and TGF-β1-treated fibroblasts and renal tubular epithelial cells were adopted in this study. Ruxolitinib was administered to UUO mice and TGF-β1-treated cells. Kidneys from UUO mice with Ruxolitinib treatment displayed less tubular injuries compared with those without Ruxolitinib treatment. Ruxolitinib treatment suppressed fibroblast activation and extracellular matrix (ECM) production in UUO kidneys and TGF-β1-treated fibroblasts. Ruxolitinib treatment also blocked epithelial-mesenchymal transition (EMT) in UUO kidneys and TGF-β 1-treated renal tubular epithelial cells. Moreover, Ruxolitinib treatment alleviated UUO-induced inflammation, oxidative stress and apoptosis. Mechanistically, Ruxolitinib treatment attenuated activation of both Stat3 and Akt/mTOR/Yap pathways. In conclusion, Ruxolitinib treatment can ameliorate UUO-induced renal interstitial fibrosis, suggesting that Ruxolitinib may be potentially used to treat fibrotic kidney disease.
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Affiliation(s)
- Yu Bai
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China.,Department of Nephrology, Shengjing Hospital, China Medical University, Shenyang, China
| | - Wei Wang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Ping Yin
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Jian Gao
- Center of Laboratory Technology and Experimental Medicine, China Medical University, Shenyang, China
| | - Lei Na
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Yu Sun
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Zhuo Wang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Zhongbo Zhang
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China
| | - Chenghai Zhao
- Department of Pathophysiology, College of Basic Medical Science, China Medical University, Shenyang, China
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33
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Puri RV, Yerrathota S, Home T, Idowu JY, Chakravarthi VP, Ward CJ, Singhal PC, Vanden Heuvel GB, Fields TA, Sharma M. Notch4 activation aggravates NF-κB-mediated inflammation in HIV-1-associated nephropathy. Dis Model Mech 2019; 12:dmm.040642. [PMID: 31727625 PMCID: PMC6918754 DOI: 10.1242/dmm.040642] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 11/06/2019] [Indexed: 12/14/2022] Open
Abstract
Notch pathway activation plays a central role in the pathogenesis of many glomerular diseases. We have previously shown that Notch4 expression was upregulated in various renal cells in human immunodeficiency virus (HIV)-associated nephropathy (HIVAN) patients and rodent models of HIVAN. In this study, we examined whether the Notch pathway can be distinctly activated by HIV-1 gene products and whether Notch4, in particular, can influence disease progression. Using luciferase reporter assays, we did not observe activation of the NOTCH4 promoter with the HIV protein Nef in podocytes. Further, we observed upregulated expression of a gamma secretase complex protein, presenilin 1, but not Notch4, in podocytes infected with an HIV-1 expression construct. To assess the effects of Notch4 on HIVAN disease progression, we engineered Tg26 mice with global deletion of the Notch4 intracellular domain (Notch4dl), which is required for signaling function. These mice (Notch4d1/Tg26+) showed a significant improvement in renal function and a significant decrease in mortality compared to Tg26 mice. Histological examination of kidneys showed that Notch4d1/Tg26+ mice had overall glomerular, tubulointerstitial injury and a marked decrease in interstitial inflammation. A significant decrease in the proliferating cells was observed in the tubulointerstitial compartments of Notch4d1/Tg26+ mice. Consistent with the diminished inflammation, kidneys from Notch4d1/Tg26+ mice also showed a significant decrease in expression of the inflammatory cytokine transcripts Il-6 and Ccl2, as well as the master inflammatory transcription factor NF-κB (Nfkb1 transcripts and p65 protein). These data identify Notch4 as an important mediator of tubulointerstitial injury and inflammation in HIVAN and a potential therapeutic target. Summary: Notch4 activation contributes to the inflammation seen in HIV-associated nephropathy (HIVAN), and inhibition of Notch4 ameliorates inflammation and prolongs life in a mouse model of HIVAN.
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Affiliation(s)
- Rajni Vaid Puri
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA.,The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Sireesha Yerrathota
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA.,The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Trisha Home
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA.,The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Jessica Y Idowu
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA.,The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - V Praveen Chakravarthi
- Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Christopher J Ward
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA.,The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Pravin C Singhal
- Institute of Molecular Medicine, Feinstein Institute for Medical Research and Zucker School of Medicine at Hofstra-Northwell, New York, NY 11549, USA
| | | | - Timothy A Fields
- The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160, USA.,Department of Pathology and Laboratory Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA
| | - Madhulika Sharma
- Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS 66160, USA .,The Jared Grantham Kidney Institute, University of Kansas Medical Center, Kansas City, KS 66160, USA
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34
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Hermert D, Martin IV, Reiss LK, Liu X, Breitkopf DM, Reimer KC, Alidousty C, Rauen T, Floege J, Ostendorf T, Weiskirchen R, Raffetseder U. The nucleic acid binding protein YB-1-controlled expression of CXCL-1 modulates kidney damage in liver fibrosis. Kidney Int 2019; 97:741-752. [PMID: 32061437 DOI: 10.1016/j.kint.2019.10.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 09/29/2019] [Accepted: 10/17/2019] [Indexed: 12/28/2022]
Abstract
Acute kidney injury is a common complication of advanced liver disease and increased mortality of these patients. Here, we analyzed the role of Y-box protein-1 (YB-1), a nucleic acid binding protein, in the bile duct ligation model of liver fibrosis and monitored liver and subsequent kidney damage. Following bile duct ligation, both serum levels of liver enzymes and expression of hepatic extracellular matrix components such as type I collagen were significantly reduced in mice with half-maximal YB-1 expression (Yb1+/-) as compared to their wild-type littermates. By contrast, expression of the chemokine CXCL1 was significantly augmented in these Yb1+/- mice. YB-1 was identified as a potent transcriptional repressor of the Cxcl1 gene. Precision-cut kidney slices from Yb1+/- mice revealed higher expression of the CXCL1 receptor CXCR2 as well as enhanced responsivity to CXCL1 compared to those from wild-type mice. Increased CXCL1 content in Yb1+/- mice led to pronounced bile duct ligation-induced damage of the kidneys monitored as parameters of tubular epithelial injury and immune cell infiltration. Pharmacological blockade of CXCR2 as well as application of an inhibitory anti-CXCL1 antibody significantly mitigated early systemic effects on the kidneys following bile duct ligation whereas it had only a modest impact on hepatic inflammation and function. Thus, our analyses provide direct evidence that YB-1 crucially contributes to hepatic fibrosis and modulates liver-kidney crosstalk by maintaining tight control over chemokine CXCL1 expression.
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Affiliation(s)
- Daniela Hermert
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ina V Martin
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Lucy K Reiss
- Institute of Pharmacology and Toxicology, Medical Faculty, RWTH-Aachen University, Aachen, Germany
| | - Xiyang Liu
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Daniel M Breitkopf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Katharina C Reimer
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | | | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), University Hospital RWTH-Aachen, Aachen, Germany
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, University Hospital RWTH-Aachen, Aachen, Germany.
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35
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Breitkopf DM, Jankowski V, Ohl K, Hermann J, Hermert D, Tenbrock K, Liu X, Martin IV, Wang J, Groll F, Gröne E, Floege J, Ostendorf T, Rauen T, Raffetseder U. The YB-1:Notch-3 axis modulates immune cell responses and organ damage in systemic lupus erythematosus. Kidney Int 2019; 97:289-303. [PMID: 31882173 DOI: 10.1016/j.kint.2019.09.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Revised: 09/01/2019] [Accepted: 09/30/2019] [Indexed: 01/17/2023]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease and lupus nephritis is a major risk factor for morbidity and mortality. Notch-3 signaling induced by membrane-bound or soluble ligands such as YB-1 constitutes an evolutionarily conserved pathway that determines major decisions in cell fate. Mass spectrometry of extracellular YB-1 in sera from patients with SLE and lupus-prone mice revealed specific post-translational guanidinylation of two lysine residues within the highly conserved cold-shock domain of YB-1 (YB-1-G). These modifications highly correlated with SLE disease activity, especially in patients with lupus nephritis and resulted in enhanced activation of Notch-3 signaling in T lymphocytes. The importance of YB-1:Notch-3 interaction in T cells was further evidenced by increased interleukin (Il)10 expression following YB-1-G stimulation and detection of both, YB-1-G and Notch-3, in kidneys of MRL.lpr mice by mass spectrometry imaging. Notch-3 expression and activation was significantly up-regulated in kidneys of 20-week-old MRL.lpr mice. Notably, lupus-prone mice with constitutional Notch-3 depletion (B6.Faslpr/lprNotch3-/-) exhibited an aggravated lupus phenotype with significantly increased mortality, enlarged lymphoid organs and aggravated nephritis. Additionally, these mice displayed fewer regulatory T cells and reduced amounts of anti-inflammatory IL-10. Thus, our results indicate that the YB-1:Notch-3 axis exerts protective effects in SLE and that Notch-3 deficiency exacerbates the SLE phenotype.
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Affiliation(s)
- Daniel M Breitkopf
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Vera Jankowski
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
| | - Kim Ohl
- Department of Pediatrics, RWTH Aachen University, Aachen, Germany
| | - Juliane Hermann
- Institute for Molecular Cardiovascular Research (IMCAR), RWTH Aachen University, Aachen, Germany
| | - Daniela Hermert
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Klaus Tenbrock
- Department of Pediatrics, RWTH Aachen University, Aachen, Germany
| | - Xiyang Liu
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Ina V Martin
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Jialin Wang
- Department of Nephrology, Zhongshan Hospital Fudan University, Shanghai, China
| | - Fabian Groll
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Elisabeth Gröne
- Department of Cellular and Molecular Pathology, German Cancer Research Center, Heidelberg, Germany
| | - Jürgen Floege
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Tammo Ostendorf
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany
| | - Thomas Rauen
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany.
| | - Ute Raffetseder
- Department of Nephrology and Clinical Immunology, RWTH Aachen University, Aachen, Germany.
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Abstract
Fibrosis is the abnormal deposition of extracellular matrix, which can lead to organ dysfunction, morbidity, and death. The disease burden caused by fibrosis is substantial, and there are currently no therapies that can prevent or reverse fibrosis. Metabolic alterations are increasingly recognized as an important pathogenic process that underlies fibrosis across many organ types. As a result, metabolically targeted therapies could become important strategies for fibrosis reduction. Indeed, some of the pathways targeted by antifibrotic drugs in development - such as the activation of transforming growth factor-β and the deposition of extracellular matrix - have metabolic implications. This Review summarizes the evidence to date and describes novel opportunities for the discovery and development of drugs for metabolic reprogramming, their associated challenges, and their utility in reducing fibrosis. Fibrotic therapies are potentially relevant to numerous common diseases such as cirrhosis, non-alcoholic steatohepatitis, chronic renal disease, heart failure, diabetes, idiopathic pulmonary fibrosis, and scleroderma.
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37
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Silver SA, Gerarduzzi C. Found in Translation: Reasons for Optimism in the Pursuit to Prevent Chronic Kidney Disease After Acute Kidney Injury. Can J Kidney Health Dis 2019; 6:2054358119868740. [PMID: 31452903 PMCID: PMC6698989 DOI: 10.1177/2054358119868740] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 06/21/2019] [Indexed: 12/14/2022] Open
Abstract
Purpose of review: The current review will discuss on the progress of studying the transition
phase between acute kidney injury (AKI) and chronic kidney disease (CKD)
through improved animal models, common AKI and CKD pathways, and how human
studies may inform different translational approaches. Sources of information: PubMed and Google Scholar. Methods: A narrative review was performed using the main terms “acute kidney injury,”
“chronic kidney disease,” “end-stage renal disease,” “animal models,”
“review,” “decision-making,” and “translational research.” Key findings: The last decade has shown much progress in the study of AKI, including
evidence of a pathophysiological link between AKI and CKD. We are now in a
phase of redesigning animal models and discovering mechanisms that can
replicate the pathological conditions of the AKI-to-CKD continuum.
Translating these findings into the clinic is a barrier that must be
overcome. To this end, current efforts include prediction of AKI onset and
maladaptive repair, detecting patients susceptible to the progression of
chronic maladaptive repair, and understanding shared signaling mechanisms
between AKI and CKD. Limitations: This is a narrative review of the literature that is partially influenced by
the knowledge, perspectives, and experiences of the authors and their
research background. Implications: Overall, this new knowledge from the AKI-to-CKD continuum will help bridge
the discontinuity that exists between animal models and patients, resulting
in more effective translational biomarkers and therapeutics to test in known
AKI pathologies thereby preventing the chronicity of kidney injury
progression.
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Affiliation(s)
- Samuel A. Silver
- Division of Nephrology, Kingston Health
Sciences Center, Queen’s University, Kingston, ON, Canada
| | - Casimiro Gerarduzzi
- Division de Néphrologie, Centre de
recherche de l’Hôpital Maisonneuve-Rosemont, Montréal, Québec, Canada
- Département de Médecine, Faculté de
Médecine, Université de Montréal, Montréal, Québec, Canada
- Casimiro Gerarduzzi, Division de
Néphrologie, Centre de recherche de l’Hôpital Maisonneuve-Rosemont, 5345,
boulevard de l’Assomption, Montreal, QC H1T 2M4, Canada.
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38
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Liu B, Ding FX, Liu Y, Xiong G, Lin T, He DW, Zhang YY, Zhang DY, Wei GH. Human umbilical cord-derived mesenchymal stem cells conditioned medium attenuate interstitial fibrosis and stimulate the repair of tubular epithelial cells in an irreversible model of unilateral ureteral obstruction. Nephrology (Carlton) 2019; 23:728-736. [PMID: 28667820 DOI: 10.1111/nep.13099] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 05/11/2017] [Accepted: 06/25/2017] [Indexed: 01/06/2023]
Abstract
AIM The growing number of patients suffering from chronic renal disease (CKD) is a challenge for the development of innovative therapies. Researchers have studied the therapeutic effects of cell therapy in acute kidney injury (AKI). However, the therapeutic effect of conditional medium (CM) in the CKD models have been rarely reported. Here, we examined the effects of umbilical cord derived-mesenchymal stem cells (hUC-MSCs) CM on renal fibrosis in a rat model of unilateral ureteral obstruction (UUO). METHODS Animals were randomly divided into three groups: sham-operated, UUO, UUO + CM. CM was administered via the left renal artery after total ligation of the left ureter. Rats were killed after 14 days of obstruction. Histological changes and oxidative stress parameters were assessed. Western blotting and immunohistochemistry analysis were used to measure epithelial-mesenchymal transition (EMT) markers, including epithelial cadherin (E-cadherin), α-smooth muscle actin (α-SMA), tumour necrosis factor-α (TNF-α), Collagen-I, and transforming growth factor β1 (TGF-β1). Proliferation and apoptosis of renal tubular epithelial cells (RTEs) were also measured. RESULTS HucMSC-CM significantly reduced the levels of malondialdehyde (MDA) and reactive oxygen species (ROS), and increased the activity of glutathione (GSH) induced by UUO. Moreover, CM significantly reduced the expression of TGF-β1, α-SMA, TNF-α and Collagen-I in UUO kidney, promoted the proliferation of RTEs and inhibited its apoptosis. In addition, the increased expression of E-cadherin also reflects the effective improvement of renal interstitial fibrosis. CONCLUSION This study shows that CM protects UUO-induced kidney damage and therefore could be a potential tool to prevent CKD progression.
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Affiliation(s)
- Bo Liu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Feng-Xia Ding
- Department of Respiratory Medicine, Chongqing Key Laboratory of Pediatrics, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Yang Liu
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Geng Xiong
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Tao Lin
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Da-Wei He
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yuan-Yuan Zhang
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - De-Ying Zhang
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China.,Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Chongqing, China
| | - Guang-Hui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, Chongqing, China
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39
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Begum S, Ahmed N, Mubarak M, Mateen SM, Khalid N, Rizvi SAH. Modulation of Renal Parenchyma in Response to Allogeneic Adipose-Derived Mesenchymal Stem Cells Transplantation in Acute Kidney Injury. Int J Stem Cells 2019; 12:125-138. [PMID: 30836723 PMCID: PMC6457705 DOI: 10.15283/ijsc18091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Revised: 12/29/2018] [Accepted: 01/08/2019] [Indexed: 01/10/2023] Open
Abstract
Background and Objectives In regenerative medicine, mesenchymal stem cells derived from adipose tissues (Ad-MSCs) are a very attractive target to treat many diseases. In relation to nephrology, the aim of the current study is to investigate the effects of Ad-MSCs for the amelioration of acute kidney injury and to explore the mechanism of renal parenchymal changes in response to allogeneic transplantation of Ad-MSCs. Methods and Results The nephrotoxicity was induced by cisplatin (CP) in balb/c mice according to RIFLE Class and AKIN Stage 3. PCR, qRT-PCR and fluorescent labeled cells infusion, histopathology, immunohistochemistry, functional analyses were used for genes and proteins expressions data acquisition respectively. We demonstrated that single intravenous infusion of 2.5×107/kg mAd-MSCs in mice pre-injected with CP recruited to the kidney, restored the renal structure, and function, which resulted in progressive survival of mice. The renal tissue morphology was recovered in terms of diminished necrosis or epithelial cells damage, protein casts formation, infiltration of inflammatory cells, tubular dilatation, and restoration of brush border protein; Megalin and decreased Kim-1 expressions in mAd-MSCs transplanted mice. Significant reduction in serum creatinine with slashed urea and urinary protein levels were observed. Anti-BrdU staining displayed enhanced tubular cells proliferation. Predominantly, downgrade expressions of TNF-α and TGF-β1 were observed post seven days in mAd-MSCs transplanted mice. Conclusions Ad-MSCs exerts pro-proliferative, anti-inflammatory, and anti-fibrotic effects. Ad-MSCs transplantation without any chemical or genetic manipulation can provide the evidence of therapeutic strategy for the origin of regeneration and overall an improved survival of the system in functionally deprived failed kidneys.
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Affiliation(s)
| | | | | | | | | | - Syed Adibul Hasan Rizvi
- Department of Urology, Sindh Institute of Urology and Transplantation (SIUT), Karachi, Pakistan
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40
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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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41
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Gera S, Dighe RR. The soluble ligand Y box-1 activates Notch3 receptor by binding to epidermal growth factor like repeats 20-23. Arch Biochem Biophys 2018; 660:129-136. [PMID: 30321499 DOI: 10.1016/j.abb.2018.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 09/14/2018] [Accepted: 10/11/2018] [Indexed: 12/15/2022]
Abstract
The transduction of signal by the Notch receptors to the intracellular domain is highly regulated and relies on binding of the ligands to the Epidermal growth factor Like Repeats (ELRs) of receptor's extracellular domain. Both canonical and non-canonical ligands are known to interact with different ELRs and activate Notch receptors. The aim of this study was to investigate the interaction of a soluble non-canonical ligand, Y box-1 (Yb-1) with Notch3 receptor ELRs. Polyclonal antibodies were employed as novel tools to identify the binding site of this ligand. Using various ligand binding and signaling assays, soluble Yb-1 was found to interact specifically with the Notch3 receptor, but not with Notch1. The ELRs 17-24 of Notch3 were identified as the binding site for Yb-1. Further, Yb-1 and Notch3 ELRs 17-24 structures were modelled and the Yb-1-Notch3 interaction interface was predicted to be Notch3 ELRs 20-23. Binding of the Yb-1 with Notch3 ELRs different from those reported for canonical DSL ligands also transduced the signal to the intracellular domain through the negative regulatory region. In conclusion, study highlights the importance of molecular modifications in different Notch3 ELRs for the transduction of signal to the negative regulatory region.
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Affiliation(s)
- Sakshi Gera
- Department of Molecular Reproduction Development and Genetics, Indian Institute of Science, Bangalore, 560012, India
| | - Rajan R Dighe
- Department of Molecular Reproduction Development and Genetics, Indian Institute of Science, Bangalore, 560012, India.
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42
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Lipphardt M, Dihazi H, Müller GA, Goligorsky MS. Fibrogenic Secretome of Sirtuin 1-Deficient Endothelial Cells: Wnt, Notch and Glycocalyx Rheostat. Front Physiol 2018; 9:1325. [PMID: 30298020 PMCID: PMC6160542 DOI: 10.3389/fphys.2018.01325] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 09/03/2018] [Indexed: 12/31/2022] Open
Abstract
Sirtuins (SIRT) are ubiquitous histone and protein deacetylases and a member of this family, SIRT1, is the best-studied one. Its functions in endothelial cells encompass branching angiogenesis, activation of endothelial nitric oxide synthase, regulation of proapoptotic and proinflammatory pathways, among others. Defective SIRT1 activity has been described in various cardiovascular, renal diseases and in aging-associated conditions. Therefore, understanding of SIRT1-deficient, endothelial dysfunctional phenotype has much to offer clinically. Here, we summarize recent studies by several investigative teams of the characteristics of models of global endothelial SIRT1 deficiency, the causes of facilitative development of fibrosis in these conditions, dissect the protein composition of the aberrant secretome of SIRT1-deficient endothelial cells and present several components of this aberrant secretome that are involved in fibrogenesis via activation of fibroblasts to myofibroblasts. These include ligands of Wnt and Notch pathways, as well as proteolytic fragments of glycocalyx core protein, syndecan-4. The latter finding is crucial for understanding the degradation of glycocalyx that accompanies SIRT1 deficiency. This spectrum of abnormalities associated with SIRT1 deficiency in endothelial cells is essential for understanding the origins and features of endothelial dysfunction in a host of cardiovascular and renal diseases.
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Affiliation(s)
- Mark Lipphardt
- Departments of Medicine, Physiology and Pharmacology, New York Medical College, Valhalla, NY, United States.,Clinic for Nephrology and Rheumatology, Göttingen University Medical Faculty, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Hassan Dihazi
- Clinic for Nephrology and Rheumatology, Göttingen University Medical Faculty, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Gerhard A Müller
- Clinic for Nephrology and Rheumatology, Göttingen University Medical Faculty, Georg-August-Universität Göttingen, Göttingen, Germany
| | - Michael S Goligorsky
- Departments of Medicine, Physiology and Pharmacology, New York Medical College, Valhalla, NY, United States
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YB-1 increases glomerular, but decreases interstitial fibrosis in CNI-induced nephropathy. Clin Immunol 2018; 194:67-74. [DOI: 10.1016/j.clim.2018.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 07/02/2018] [Indexed: 12/14/2022]
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44
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PAX2 may induce ADAM10 expression in renal tubular epithelial cells and contribute to epithelial-to-mesenchymal transition. Int Urol Nephrol 2018; 50:1729-1741. [PMID: 30117015 PMCID: PMC6133107 DOI: 10.1007/s11255-018-1956-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Accepted: 08/07/2018] [Indexed: 11/30/2022]
Abstract
Purpose We sought to investigate the role of PAX2 in renal epithelial-to-mesenchymal transition (EMT), examining the influence of PAX2 on ADAM10 expression during renal EMT and ADAM10 expression in fibrotic kidneys. Methods A rat renal tubular epithelial cell line, NRK52E, was transfected with lentivirus carrying PAX2, and E-cadherin and α-SMA expressions were measured. The influence of PAX2 on ADAM10 promoter activity was evaluated using chromatin immunoprecipitation (CHIP) and dual-luciferase reporter assay. We also treated NRK52E with ADAM10-specific over-expression vector and inhibitors and measured E-cadherin and α-SMA expression. In vivo, Wistar rats (n = 36) were subjected to unilateral ureteral obstruction (UUO) (n = 18) or sham surgery (n = 18), with tissues from post-operative day 3, 7, and 14 days examined, and PAX2/ADAM10 activity measured. ADAM10 expression was also assessed in kidneys from patients with chronic kidney disease (CKD). Results In NRK52E overexpressing PAX2, ADAM10 and α-SMA levels were increased, while E-cadherin levels were decreased. CHIP and dual-luciferase reporter assay showed that PAX2 directly bound to a specific site within the ADAM10 promoter, and over-expression of PAX2 significantly activated ADAM10 transcription. NRK52E with ADAM10 over-expression also significantly decreased E-cadherin and increased α-SMA levels. In the fibrotic kidneys of rats with UUO, E-cadherin levels were increased and α-SMA levels were decreased, and expression of PAX2 and ADAM10 increased. ADAM10 expression also elevated in the renal tissues of CKD patients. Conclusions PAX2 directly increased expression of ADAM10, the presence of which contributed to EMT in renal tubular epithelia and hence plays an important role in renal fibrosis.
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Huang M, Zhang J, Xu H, Ding T, Tang D, Yuan Q, Tao L, Ye Z. The TGFβ-ERK pathway contributes to Notch3 upregulation in the renal tubular epithelial cells of patients with obstructive nephropathy. Cell Signal 2018; 51:139-151. [PMID: 30081092 DOI: 10.1016/j.cellsig.2018.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 01/01/2023]
Abstract
Renal interstitial fibrosis is a common renal injury resulted from a variety of chronic kidney conditions and an array of factors. We report here that Notch3 is a potential contributor. In comparison to 6 healthy individuals, a robust elevation of Notch3 expression was observed in the renal tubular epithelial cells of 18 patients with obstructive nephropathy. In a rat unilateral ureteral obstruction (UUO) model which mimics the human disease, Notch3 upregulation closely followed the course of renal injury, renal fibrosis, TGFβ expression, and alpha-smooth muscle actin (α-SMA) expression, suggesting a role of Notch3 in promoting tubulointerstitial fibrosis. This possibility was supported by the observation that TGFβ, the major renal fibrogenic cytokine, stimulated Notch3 expression in human proximal tubule epithelial HK-2 cells. TGFβ enhanced the activation of ERK, p38, but not JNK MAP kinases in HK-2 cells. While inhibition of p38 activation using SB203580 did not affect TGFβ-induced Notch3 expression, inhibition of ERK activation with a MEK1 inhibitor PD98059 dramatically reduced the event. Furthermore, enforced ERK activation through overexpression of the constitutively active MEK1 mutant MEK1Q56P upregulated Notch3 expression in HK-2 cells, and PD98059 reduced ERK activation and Notch3 expression in HK-2 cells expressing MEK1Q56P. Collectively, we provide the first clinical evidence for Notch3 upregulation in patients with obstructive nephropathy; the upregulation is likely mediated through the TGFβ-ERK pathway. This study suggests that Notch3 upregulation contributes to renal injury caused by obstructive nephropathy, which could be prevented or delayed through ERK inhibition.
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Affiliation(s)
- Mei Huang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Jin Zhang
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; Department of Nephrology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, China
| | - Hui Xu
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China.
| | - Ting Ding
- Department of Nephrology, The Second Affiliated Hospital of University of South China, Hengyang, Hunan 421001, China
| | - Damu Tang
- Division of Nephrology, Department of Medicine, McMaster University, Canada; The Hamilton Center for Kidney Research, St. Joseph's Hospital, Hamilton, Ontario, Canada
| | - Qiongjing Yuan
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Lijian Tao
- Department of Nephrology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China; State Key Laboratory of Medical Genetics of China, Central South University, Changsha, Hunan 410008, China
| | - Zunlong Ye
- 1717 Class, ChangJun High School of Changsha, Changsha, Hunan 410002, China
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46
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Cellular and molecular mechanisms of kidney fibrosis. Mol Aspects Med 2018; 65:16-36. [PMID: 29909119 DOI: 10.1016/j.mam.2018.06.002] [Citation(s) in RCA: 273] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/12/2018] [Indexed: 12/14/2022]
Abstract
Renal fibrosis is the final pathological process common to any ongoing, chronic kidney injury or maladaptive repair. It is considered as the underlying pathological process of chronic kidney disease (CKD), which affects more than 10% of world population and for which treatment options are limited. Renal fibrosis is defined by excessive deposition of extracellular matrix, which disrupts and replaces the functional parenchyma that leads to organ failure. Kidney's histological structure can be divided into three main compartments, all of which can be affected by fibrosis, specifically termed glomerulosclerosis in glomeruli, interstitial fibrosis in tubulointerstitium and arteriosclerosis and perivascular fibrosis in vasculature. In this review, we summarized the different appearance, cellular origin and major emerging processes and mediators of fibrosis in each compartment. We also depicted and discussed the challenges in translation of anti-fibrotic treatment to clinical practice and discuss possible solutions and future directions.
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47
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Notch3 orchestrates epithelial and inflammatory responses to promote acute kidney injury. Kidney Int 2018; 94:126-138. [PMID: 29751972 DOI: 10.1016/j.kint.2018.01.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 01/11/2018] [Accepted: 01/18/2018] [Indexed: 12/20/2022]
Abstract
Acute kidney injury is a major risk factor for subsequent chronic renal and/or cardiovascular complications. Previous studies have shown that Notch3 was de novo expressed in the injured renal epithelium in the early phases of chronic kidney disease. Here we examined whether Notch3 is involved in the inflammatory response and the epithelial cell damage that typifies ischemic kidneys using Notch3 knockout mice and mice with short-term activated Notch3 signaling (N3ICD) in renal epithelial cells. After ischemia/reperfusion, N3ICD mice showed exacerbated infiltration of inflammatory cells and severe tubular damage compared to control mice. Inversely, Notch3 knockout mice were protected against ischemia/reperfusion injury. Renal macrophages derived from Notch3 knockout mice failed to activate proinflammatory cytokines. Chromatin immunoprecipitation analysis of the Notch3 promoter identified NF-κB as the principal inducer of Notch3 in ischemia/reperfusion. Thus, Notch3 induced by NF-κB in the injured epithelium sustains a proinflammatory environment attracting activated macrophages to the site of injury leading to a rapid deterioration of renal function and structure. Hence, targeting Notch3 may provide a novel therapeutic strategy against ischemia/reperfusion and acute kidney injury by preservation of epithelial structure and disruption of proinflammatory signaling.
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48
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Wyss JC, Kumar R, Mikulic J, Schneider M, Aebi JD, Juillerat-Jeanneret L, Golshayan D. Targeted γ-secretase inhibition of Notch signaling activation in acute renal injury. Am J Physiol Renal Physiol 2018; 314:F736-F746. [DOI: 10.1152/ajprenal.00414.2016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The Notch pathway has been reported to control tissue damage in acute kidney diseases. To investigate potential beneficial nephroprotective effects of targeting Notch, we developed chemically functionalized γ-secretase inhibitors (GSIs) targeting γ-glutamyltranspeptidase (γ-GT) and/or γ-glutamylcyclotransferase (γ-GCT), two enzymes overexpressed in the injured kidney, and evaluated them in in vivo murine models of acute tubular and glomerular damage. Exposure of the animals to disease-inducing drugs together with the functionalized GSIs improved proteinuria and, to some extent, kidney dysfunction. The expression of genes involved in the Notch pathway, acute inflammatory stress responses, and the renin-angiotensin system was enhanced in injured kidneys, which could be downregulated upon administration of functionalized GSIs. Immunohistochemistry staining and Western blots demonstrated enhanced activation of Notch1 as detected by its cleaved active intracellular domain during acute kidney injury, and this was downregulated by concomitant treatment with the functionalized GSIs. Thus targeted γ-secretase-based prodrugs developed as substrates for γ-GT/γ-GCT have the potential to selectively control Notch activation in kidney diseases with subsequent regulation of the inflammatory stress response and the renin-angiotensin pathways.
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Affiliation(s)
- Jean-Christophe Wyss
- Transplantation Center and Transplantation Immunopathology Laboratory, Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Rajesh Kumar
- Transplantation Center and Transplantation Immunopathology Laboratory, Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Josip Mikulic
- Transplantation Center and Transplantation Immunopathology Laboratory, Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
| | - Manfred Schneider
- Medicinal Chemistry, Roche Pharma Research and Early Development, Roche Innovation Center, F. Hoffmann-La Roche, Basel, Switzerland
| | - Johannes D. Aebi
- Medicinal Chemistry, Roche Pharma Research and Early Development, Roche Innovation Center, F. Hoffmann-La Roche, Basel, Switzerland
| | - Lucienne Juillerat-Jeanneret
- Transplantation Center and Transplantation Immunopathology Laboratory, Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
- University Institute of Pathology, CHUV and UNIL, Lausanne, Switzerland
| | - Dela Golshayan
- Transplantation Center and Transplantation Immunopathology Laboratory, Department of Medicine, Centre Hospitalier Universitaire Vaudois (CHUV) and University of Lausanne (UNIL), Lausanne, Switzerland
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Xing Z, Pan W, Zhang J, Xu X, Zhang X, He X, Fan M. Hydrogen Rich Water Attenuates Renal Injury and Fibrosis by Regulation Transforming Growth Factor-β Induced Sirt1. Biol Pharm Bull 2018; 40:610-615. [PMID: 28458345 DOI: 10.1248/bpb.b16-00832] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The current research was designed to study the role of hydrogen in renal fibrosis and the renal epithelial to mesenchymal transition (EMT) induced by transforming growth factor-β1 (TGF-β1). Hydrogen rich water (HW) was used to treat animal and cell models. Unilateral ureteral obstruction (UUO) was performed on Balb/c mice to create a model of renal fibrosis. Human kidney proximal tubular epithelial cells (HK-2 cells) were treated with TGF-β1 for 36 h to induce EMT. Serum creatinine (Scr) and blood urea nitrogen (BUN) were measured to test renal function, in addition, kidney histology and immunohistochemical staining of alpha-smooth muscle actin (α-SMA) positive cells was performed to examine the morphological changes. The treatment with UUO induced a robust fibrosis of renal interstitium, shrink of glomerulus and partial fracture of basement membrane. Renal function was also impaired in the experimental group with UUO, with an increase of Scr and BUN in serum. After that, Western-blot was performed to examine the expression of α-SMA, fibronectin, E-cadherin, Smad2 and Sirtuin-1 (Sirt1). The treatment with HW attenuated the development of fibrosis and deterioration of renal function in UUO model. In HK-2 cells, the pretreatment of HW abolished EMT induced by TGF-β1. The down-regulation the expression of Sirt1 induced by TGF-β1 which was dampened by the treatment with HW. Sirtinol, a Sirt1 inhibitor, reversed the effect of HW on EMT induced by TGF-β1. HW can inhibit the development of fibrosis in kidney and prevents HK-2 cells from undergoing EMT which is mediated through Sirt1, a downstream molecule of TGF-β1.
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Affiliation(s)
- Zhaoyu Xing
- Department of Urology, The Third Affiliated Hospital of Soochow University
| | - Wanma Pan
- Department of Pharmacology, School of Pharmacy, Fudan University
| | - Jing Zhang
- Department of Pharmacology, School of Pharmacy, Fudan University
| | - Xianlin Xu
- Department of Urology, The Third Affiliated Hospital of Soochow University
| | - Xuemei Zhang
- Department of Pharmacology, School of Pharmacy, Fudan University
| | - Xiaozhou He
- Department of Urology, The Third Affiliated Hospital of Soochow University
| | - Min Fan
- Department of Urology, The Third Affiliated Hospital of Soochow University
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50
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Lai JM, Zhang X, Liu FF, Yang R, Li SY, Zhu LB, Zou M, Cheng WH, Zhu JH. Redox-sensitive MAPK and Notch3 regulate fibroblast differentiation and activation: a dual role of ERK1/2. Oncotarget 2018; 7:43731-43745. [PMID: 27248323 PMCID: PMC5190056 DOI: 10.18632/oncotarget.9667] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2015] [Accepted: 05/12/2016] [Indexed: 11/25/2022] Open
Abstract
Myofibroblastic transformation, characterized by upregulation of α-smooth muscle actin in response to proï¬brotic agents such as TGF-β1, is considered as a major event leading to ï¬brosis. The mechanistic basis linking myoï¬broblast differentiation to idiopathic pulmonary ï¬brosis and the disease treatment remain elusive. In this study, we studied roles of MAPK, Notch, and reactive oxygen species (ROS) during the differentiation of IMR-90 lung fibroblasts at basal level and induced by TGF-β1. Our results demonstrated that ROS-dependent activation of p38, JNK1/2 and Notch3 promoted basal and TGF-β1-induced differentiation and expression of extracellular matrix proteins. In stark contrast, ERK1/2 was suppressed by ROS and exhibited an inhibitory effect on the differentiation but showed a weak promotion on the expression of extracellular matrix proteins. TGF-β1-induced Notch3 expression depended on p38 and JNK1/2. Interestingly, Notch3 was also downstream of ERK1/2, suggesting a complex role of ERK1/2 in lung function. Our results suggest a novel ROS-mediated shift of dominance from the inhibitory ERK1/2 to the stimulatory p38, JNK1/2 and Notch3 during the pathological progression of IPF. Thus, targeting ERK1/2 signaling for activation and p38, JNK1/2 and Notch3 for inhibition may be of clinical potential against lung fibrosis.
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Affiliation(s)
- Jun-Mei Lai
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.,Department of Geriatrics and Neurology, the Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.,Department of Rehabilitation Medicine, Zhejiang Provincial People's Hospital, Hangzhou, Zhejiang 310014, China
| | - Xiong Zhang
- Department of Geriatrics and Neurology, the Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Fang-Fang Liu
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Rui Yang
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Shen-Yu Li
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Lan-Bing Zhu
- Department of Geriatrics and Neurology, the Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Ming Zou
- Department of Geriatrics and Neurology, the Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
| | - Wen-Hsing Cheng
- Department of Food Science, Nutrition and Health Promotion, Mississippi State University, Mississippi State, MS, 39762, USA
| | - Jian-Hong Zhu
- Department of Preventive Medicine, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.,Department of Geriatrics and Neurology, the Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China.,Key Laboratory of Watershed Science and Health of Zhejiang Province, Wenzhou Medical University, Wenzhou, Zhejiang 325035, China
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