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Cohen C, Mhaidly R, Croizer H, Kieffer Y, Leclere R, Vincent-Salomon A, Robley C, Anglicheau D, Rabant M, Sannier A, Timsit MO, Eddy S, Kretzler M, Ju W, Mechta-Grigoriou F. WNT-dependent interaction between inflammatory fibroblasts and FOLR2+ macrophages promotes fibrosis in chronic kidney disease. Nat Commun 2024; 15:743. [PMID: 38272907 PMCID: PMC10810789 DOI: 10.1038/s41467-024-44886-z] [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: 03/06/2023] [Accepted: 01/08/2024] [Indexed: 01/27/2024] Open
Abstract
Chronic kidney disease (CKD) is a public health problem driven by myofibroblast accumulation, leading to interstitial fibrosis. Heterogeneity is a recently recognized characteristic in kidney fibroblasts in CKD, but the role of different populations is still unclear. Here, we characterize a proinflammatory fibroblast population (named CXCL-iFibro), which corresponds to an early state of myofibroblast differentiation in CKD. We demonstrate that CXCL-iFibro co-localize with macrophages in the kidney and participate in their attraction, accumulation, and switch into FOLR2+ macrophages from early CKD stages on. In vitro, macrophages promote the switch of CXCL-iFibro into ECM-secreting myofibroblasts through a WNT/β-catenin-dependent pathway, thereby suggesting a reciprocal crosstalk between these populations of fibroblasts and macrophages. Finally, the detection of CXCL-iFibro at early stages of CKD is predictive of poor patient prognosis, which shows that the CXCL-iFibro population is an early player in CKD progression and demonstrates the clinical relevance of our findings.
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Affiliation(s)
- Camille Cohen
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Rana Mhaidly
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Hugo Croizer
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Yann Kieffer
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Renaud Leclere
- Department of Diagnostic and Theragnostic Medicine, Institut Curie Hospital Group, 26, rue d'Ulm, F-75248, Paris, France
| | - Anne Vincent-Salomon
- Department of Diagnostic and Theragnostic Medicine, Institut Curie Hospital Group, 26, rue d'Ulm, F-75248, Paris, France
| | - Catherine Robley
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France
| | - Dany Anglicheau
- Department of Nephrology and Kidney Transplantation, Necker Hospital, AP-HP, Paris Cité University, Inserm U1151, 149 rue de Sèvres, 75015, Paris, France
| | - Marion Rabant
- Department of Pathology, Necker Hospital, AP-HP, Paris Cité University, 149 rue de Sèvres, 75015, Paris, France
| | - Aurélie Sannier
- Department of Pathology, AP-HP, Bichat-Claude Bernard Hospital, Paris Cité University, Inserm, U1148, 46, rue Henri Huchard, 75877, Paris, France
| | - Marc-Olivier Timsit
- Department of Urology, Européen George Pompidou Hospital, APHP, Paris Cité University, Paris, France
| | - Sean Eddy
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Matthias Kretzler
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Wenjun Ju
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI, 48109, USA
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Fatima Mechta-Grigoriou
- Institut Curie, Stress and Cancer Laboratory, Equipe labélisée par la Ligue Nationale contre le Cancer, PSL Research University, 26, rue d'Ulm, F-75248, Paris, France.
- Inserm, U830, 26, rue d'Ulm, Paris, F-75005, France.
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Guo C, Cui Y, Jiao M, Yao J, Zhao J, Tian Y, Dong J, Liao L. Crosstalk between proximal tubular epithelial cells and other interstitial cells in tubulointerstitial fibrosis after renal injury. Front Endocrinol (Lausanne) 2024; 14:1256375. [PMID: 38260142 PMCID: PMC10801024 DOI: 10.3389/fendo.2023.1256375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/22/2023] [Indexed: 01/24/2024] Open
Abstract
The energy needs of tubular epithelial components, especially proximal tubular epithelial cells (PTECs), are high and they heavily depend on aerobic metabolism. As a result, they are particularly vulnerable to various injuries caused by factors such as ischemia, proteinuria, toxins, and elevated glucose levels. Initial metabolic and phenotypic changes in PTECs after injury are likely an attempt at survival and repair. Nevertheless, in cases of recurrent or prolonged injury, PTECs have the potential to undergo a transition to a secretory state, leading to the generation and discharge of diverse bioactive substances, including transforming growth factor-β, Wnt ligands, hepatocyte growth factor, interleukin (IL)-1β, lactic acid, exosomes, and extracellular vesicles. By promoting fibroblast activation, macrophage recruitment, and endothelial cell loss, these bioactive compounds stimulate communication between epithelial cells and other interstitial cells, ultimately worsening renal damage. This review provides a summary of the latest findings on bioactive compounds that facilitate the communication between these cellular categories, ultimately leading to the advancement of tubulointerstitial fibrosis (TIF).
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Affiliation(s)
- Congcong Guo
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Institute of Nephrology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- College of Pharmacy, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yuying Cui
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Institute of Nephrology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- First Clinical Medical College, Shandong University of Traditional Chinese Medicin, Jinan, Shandong, China
| | - Mingwen Jiao
- Department of General Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Jinming Yao
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Institute of Nephrology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Junyu Zhao
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Institute of Nephrology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Yutian Tian
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Institute of Nephrology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
| | - Jianjun Dong
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
| | - Lin Liao
- Department of Endocrinology and Metabology, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Key Laboratory of Rheumatic Disease and Translational Medicine, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- Shandong Institute of Nephrology, the First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Jinan, Shandong, China
- First Clinical Medical College, Shandong University of Traditional Chinese Medicin, Jinan, Shandong, China
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Zhang M, Liu Q, Meng H, Duan H, Liu X, Wu J, Gao F, Wang S, Tan R, Yuan J. Ischemia-reperfusion injury: molecular mechanisms and therapeutic targets. Signal Transduct Target Ther 2024; 9:12. [PMID: 38185705 PMCID: PMC10772178 DOI: 10.1038/s41392-023-01688-x] [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: 01/29/2023] [Revised: 08/29/2023] [Accepted: 10/18/2023] [Indexed: 01/09/2024] Open
Abstract
Ischemia-reperfusion (I/R) injury paradoxically occurs during reperfusion following ischemia, exacerbating the initial tissue damage. The limited understanding of the intricate mechanisms underlying I/R injury hinders the development of effective therapeutic interventions. The Wnt signaling pathway exhibits extensive crosstalk with various other pathways, forming a network system of signaling pathways involved in I/R injury. This review article elucidates the underlying mechanisms involved in Wnt signaling, as well as the complex interplay between Wnt and other pathways, including Notch, phosphatidylinositol 3-kinase/protein kinase B, transforming growth factor-β, nuclear factor kappa, bone morphogenetic protein, N-methyl-D-aspartic acid receptor-Ca2+-Activin A, Hippo-Yes-associated protein, toll-like receptor 4/toll-interleukine-1 receptor domain-containing adapter-inducing interferon-β, and hepatocyte growth factor/mesenchymal-epithelial transition factor. In particular, we delve into their respective contributions to key pathological processes, including apoptosis, the inflammatory response, oxidative stress, extracellular matrix remodeling, angiogenesis, cell hypertrophy, fibrosis, ferroptosis, neurogenesis, and blood-brain barrier damage during I/R injury. Our comprehensive analysis of the mechanisms involved in Wnt signaling during I/R reveals that activation of the canonical Wnt pathway promotes organ recovery, while activation of the non-canonical Wnt pathways exacerbates injury. Moreover, we explore novel therapeutic approaches based on these mechanistic findings, incorporating evidence from animal experiments, current standards, and clinical trials. The objective of this review is to provide deeper insights into the roles of Wnt and its crosstalk signaling pathways in I/R-mediated processes and organ dysfunction, to facilitate the development of innovative therapeutic agents for I/R injury.
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Affiliation(s)
- Meng Zhang
- The Collaborative Innovation Center, Jining Medical University, Jining, Shandong, 272067, China
| | - Qian Liu
- Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Hui Meng
- Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Hongxia Duan
- Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Xin Liu
- Second Clinical Medical College, Jining Medical University, Jining, Shandong, 272067, China
| | - Jian Wu
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Fei Gao
- The Collaborative Innovation Center, Jining Medical University, Jining, Shandong, 272067, China
- Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Shijun Wang
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital and Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
| | - Rubin Tan
- Department of Physiology, Basic medical school, Xuzhou Medical University, Xuzhou, 221004, China.
| | - Jinxiang Yuan
- The Collaborative Innovation Center, Jining Medical University, Jining, Shandong, 272067, China.
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Xing H, Jiang Z, Wu Y, Ou S, Qin J, Xue L, Wu W. The role of urinary Dickkopf-3 in the prediction of acute kidney injury: a systematic review meta-analysis. Int Urol Nephrol 2023; 55:3175-3188. [PMID: 37072601 DOI: 10.1007/s11255-023-03593-2] [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: 01/02/2023] [Accepted: 04/07/2023] [Indexed: 04/20/2023]
Abstract
BACKGROUND To systematically evaluate the diagnostic efficacy of urinary Dickkopf-Related Protein 3 (DKK-3) in acute kidney injury and to explore the clinical application value of urinary DKK-3. METHOD English databases (PubMed, Embase, Cochrane, and WOS) and Chinese databases (VIP, WanFang data, and China National Knowledge Internet) were screened for relevant papers published before March 12, 2023. After literature screening and data extraction, quality assessment was performed according to the QUADAS-2 scoring system. Then, the combined diagnostic and predictive parameters were calculated using a bivariate mixed effect meta-analysis model. Deek's funnel plot asymmetry test assessed publication bias, and Fagan's nomogram plot was used to verify its clinical utility. RESULT A total of 5 studies involving 2787 patients were included in this meta-analysis, of which 4 focused on contrast-induced acute kidney injury (CI-AKI) and 1 focused on AKI associated with cardiac surgery. The analysis showed that urine Dickkopf-3 has high diagnostic accuracy for AKI, with a sensitivity of 0.55 (95% CI [0.41, 0.68]), specificity of 0.80 (95% CI [0.70, 0.87]), positive likelihood ratio (PLR) of 2.7 [1.8, 4.1], negative likelihood ratio (NLR) of 0.56 [0.42, 0.75], diagnostic odds ratio (DOR) of 5 [3, 9], and AUC of 0.74 [0.70-0.77]. We did not perform subgroup analyses for predictive value due to the small number of included studies. CONCLUSION Urinary DKK3 may have limited predictive ability for acute kidney injury, especially for AKI associated with cardiac surgery. Therefore, urinary DKK3 may serve as a potential predictor for AKI. However, clinical studies with larger samples are still needed for validation.
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Affiliation(s)
- Huameng Xing
- Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China
- Metabolic Vascular Disease Key Laboratory, Luzhou, China
| | - Zheng Jiang
- Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China
- Metabolic Vascular Disease Key Laboratory, Luzhou, China
| | - Yuxuan Wu
- Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China
- Metabolic Vascular Disease Key Laboratory, Luzhou, China
| | - Santao Ou
- Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China
- Metabolic Vascular Disease Key Laboratory, Luzhou, China
| | - Jianhua Qin
- Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China
- Metabolic Vascular Disease Key Laboratory, Luzhou, China
| | - Ling Xue
- Department of Urology, Affiliated Hospital of Southwest Medical University, No. 25 Taiping Street, Jiangyang District, Sichuan, 646000, Luzhou, China.
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China.
| | - Weihua Wu
- Department of Nephrology, Affiliated Hospital of Southwest Medical University, Luzhou, China.
- Sichuan Clinical Research Center for Nephropathy, Luzhou, China.
- Metabolic Vascular Disease Key Laboratory, Luzhou, China.
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5
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Kim C, Kwak W, Won DH, Kim J, Hwang DB, Kim N, Kang M, Jeon Y, Park YI, Park JW, Yun JW. Loss of Dact2 alleviates cisplatin-induced nephrotoxicity through regulation of the Igfl-MAPK pathway axis. Cell Biol Toxicol 2023; 39:3197-3217. [PMID: 37603122 DOI: 10.1007/s10565-023-09827-4] [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: 04/07/2023] [Accepted: 08/13/2023] [Indexed: 08/22/2023]
Abstract
Wnt signaling is a principal pathway regulating the essential activities of cell proliferation. Here, we investigated the effect of Wnt/β-catenin signaling on in vivo drug-induced renal injury through the deletion of Dact2, a Wnt antagonist, and deciphered the underlying mechanism. Wild-type (WT) and Dact2 knockout (KO) mice were administered a single intraperitoneal injection of cisplatin to induce renal injury. The injury was alleviated in Dact2 KO mice, which showed lower levels of blood urea nitrogen and creatinine. RNA sequencing revealed 194 differentially expressed genes (DEGs) between WT and Dact2 KO mouse kidney before cisplatin treatment. Among them, higher levels of Igf1, one of the Wnt target genes responsible for "Positive regulation of cell proliferation" in KO mice, were confirmed along with the induction of Ki67 expression. In RNA-seq analysis comparing WT and Dact2 KO mice after cisplatin treatment, genes related to "Apoptosis" and "Activation of mitogen-activated protein kinase (MAPK) activity" were among the downregulated DEGs in KO mice. These results were corroborated in western blotting of proteins related to apoptosis and proapoptotic MAPK pathway; the expression of which was found to be lower in cisplatin-treated KO mice. Importantly, β-catenin was found to directly bind to and regulate the transcription of Igf1, leading to the alleviation of cisplatin-induced cytotoxicity by the Wnt agonist, CHIR-99021. In addition, Igf1 knockdown accelerated cisplatin-induced cytotoxicity, accompanied by the MAPK upregulation. Our findings suggest that Dact2 knockout could protect cisplatin-induced nephrotoxicity by inhibiting apoptosis, possibly through the regulation of the Igf1-MAPK axis associated with Wnt/β-catenin signaling.
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Affiliation(s)
- Changuk Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Woori Kwak
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Dong-Hoon Won
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Jina Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Da-Bin Hwang
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Nahyun Kim
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Minhwa Kang
- Laboratory of Veterinary Toxicology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young Jeon
- Laboratory of Veterinary Toxicology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea
| | - Yong Il Park
- Department of Biotechnology, The Catholic University of Korea, Bucheon, 14662, Republic of Korea
| | - Jun Won Park
- Division of Biomedical Convergence, College of Biomedical Science, Kangwon National University, Chuncheon, 24341, Republic of Korea
| | - Jun-Won Yun
- Laboratory of Veterinary Toxicology, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, Republic of Korea.
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Tanaka S, Portilla D, Okusa MD. Role of perivascular cells in kidney homeostasis, inflammation, repair and fibrosis. Nat Rev Nephrol 2023; 19:721-732. [PMID: 37608184 DOI: 10.1038/s41581-023-00752-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2023] [Indexed: 08/24/2023]
Abstract
Perivascular niches in the kidney comprise heterogeneous cell populations, including pericytes and fibroblasts, with distinct functions. These perivascular cells have crucial roles in preserving kidney homeostasis as they maintain microvascular networks by stabilizing the vasculature and regulating capillary constriction. A subset of kidney perivascular cells can also produce and secrete erythropoietin; this ability can be enhanced with hypoxia-inducible factor-prolyl hydroxylase inhibitors, which are used to treat anaemia in chronic kidney disease. In the pathophysiological state, kidney perivascular cells contribute to the progression of kidney fibrosis, partly via transdifferentiation into myofibroblasts. Moreover, perivascular cells are now recognized as major innate immune sentinels in the kidney that produce pro-inflammatory cytokines and chemokines following injury. These mediators promote immune cell infiltration, leading to persistent inflammation and progression of kidney fibrosis. The crosstalk between perivascular cells and tubular epithelial, immune and endothelial cells is therefore a key process in physiological and pathophysiological states. Here, we examine the multiple roles of kidney perivascular cells in health and disease, focusing on the latest advances in this field of research.
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Affiliation(s)
- Shinji Tanaka
- Division of Nephrology and Endocrinology, The University of Tokyo Graduate School of Medicine, Tokyo, Japan.
| | - Didier Portilla
- Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA, USA
| | - Mark D Okusa
- Division of Nephrology and Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA, USA.
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Hou X, Cui B, Qiu A, Liu N, Zhuang S. Pharmacological inhibition of the mixed lineage leukemia 1-menin interaction aggravates acute kidney injury induced by folic acid and ischemia-reperfusion in mice. Am J Physiol Renal Physiol 2023; 325:F669-F680. [PMID: 37733875 DOI: 10.1152/ajprenal.00287.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 08/16/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023] Open
Abstract
Mixed lineage leukemia 1 (MLL1) is a methyltransferase that induces histone H3 lysine 4 trimethylation (H3K4me3) and partially exerts its untoward functional effects by interacting with multiple subunits including menin and WD repeat-containing protein 5 (WDR5). In this study, we investigated the role and mechanisms of MLL1 in murine models of acute kidney injury induced by folic acid (FA) and ischemia-reperfusion. Injury to the kidney elevated the expression of MLL1, menin, WDR5, and H3K4Me3, which was accompanied by increased serum creatinine and blood urea nitrogen, renal tubular injury, and apoptosis. Pharmacological inhibition of MLL1 activity with MI503 to disrupt the interaction between MLL1 with menin further increased serum creatinine and blood urea nitrogen levels, enhanced expression of neutrophil gelatinase-associated lipocalin and kidney injury molecule-1, and induced more apoptosis in the kidney following FA and ischemia-reperfusion injury. In contrast, MI503 treatment decreased the expression of vimentin and proliferating cell nuclear antigens. Similarly, treatment with MM102 to disrupt the interaction between MLL1 and WDR5 also worsened renal dysfunction, aggravated tubular cell injury, increased apoptosis, and inhibited cellular dedifferentiation and proliferation in mice following FA injection. Moreover, MI503 inhibited FA-induced phosphorylation of epidermal growth factor receptor, signal transducer and activator of transcription 3, and extracellular signal-regulated kinase-1/2 in injured kidneys. Collectively, these data suggest that MLL1 contributes to renal protection and functional recovery and promotes renal regeneration through a mechanism associated with activation of the epidermal growth factor receptor signaling pathway.NEW & NOTEWORTHY Mixed lineage leukemia 1 (MLL1) is a methyltransferase that induces histone H3 lysine 4 trimethylation and exerts its functional roles by interacting with multiple subunits. In this study, we demonstrated that inhibition of MLL1 activity by MI503 or MM102 aggravated renal injury and apoptosis and suppressed renal tubular cell dedifferentiation and proliferation, suggesting that MLL1 activation during acute kidney injury acts as an intrinsic protective mechanism to mediate renal tubular cell survival and regeneration.
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Affiliation(s)
- Xiying Hou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Binbin Cui
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Andong Qiu
- School of Life Science and Technology, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, Rhode Island, United States
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Zhou X, Xiang Y, Li D, Zhong M, Hong X, Gui Y, Min W, Chen Y, Zeng X, Zhu H, Liu Y, Liu S, Yang P, Hou F, Zhou D, Fu H. Limonin, a natural ERK2 agonist, protects against ischemic acute kidney injury. Int J Biol Sci 2023; 19:2860-2878. [PMID: 37324945 PMCID: PMC10266085 DOI: 10.7150/ijbs.82417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 05/11/2023] [Indexed: 06/17/2023] Open
Abstract
Acute kidney injury (AKI) is a refractory clinical syndrome with limited effective treatments. Amid AKI, activation of the extracellular signal-regulated kinase (ERK) cascade plays a critical role in promoting kidney repair and regeneration. However, a mature ERK agonist in treating kidney disease remains lacking. This study identified limonin, a member of the class of compounds known as furanolactones, as a natural ERK2 activator. Employing a multidisciplinary approach, we systemically dissected how limonin mitigates AKI. Compared to vehicles, pretreatment of limonin significantly preserved kidney functions after ischemic AKI. We revealed that ERK2 is a significant protein linked to the limonin's active binding sites through structural analysis. The molecular docking study showed a high binding affinity between limonin and ERK2, which was confirmed by the cellular thermal shift assay and microscale thermophoresis. Mechanistically, we further validated that limonin promoted tubular cell proliferation and reduced cell apoptosis after AKI by activating ERK signaling pathway in vivo. In vitro and ex vivo, blockade of ERK abolished limonin's capacity of preventing tubular cell death under hypoxia stress. Our results indicated that limonin is a novel ERK2 activator with strong translational potential in preventing or mitigating AKI.
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Affiliation(s)
- Xianke Zhou
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Yadie Xiang
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Dier Li
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Menghua Zhong
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Xue Hong
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Yuan Gui
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
| | - Wenjian Min
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, 210009, China
| | - Yudan Chen
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Xi Zeng
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Haili Zhu
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Youhua Liu
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Shijia Liu
- Department of Clinical Pharmacology, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Peng Yang
- State Key Laboratory of Natural Medicines and Jiangsu Key Laboratory of Drug Design and Optimization, China Pharmaceutical University, Nanjing, 210009, China
| | - Fanfan Hou
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
| | - Dong Zhou
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
| | - Haiyan Fu
- Division of Nephrology, Nanfang Hospital, Southern Medical University; State Key Laboratory of Organ Failure Research; National Clinical Research Center for Kidney Disease; Guangdong Provincial Institute of Nephrology; Guangdong Provincial Key Laboratory of Renal Failure Research, Guangzhou, 510515, China
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9
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Gui Y, Palanza Z, Fu H, Zhou D. Acute kidney injury in diabetes mellitus: Epidemiology, diagnostic, and therapeutic concepts. FASEB J 2023; 37:e22884. [PMID: 36943403 PMCID: PMC10602403 DOI: 10.1096/fj.202201340rr] [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: 08/15/2022] [Revised: 02/16/2023] [Accepted: 03/08/2023] [Indexed: 03/23/2023]
Abstract
Acute kidney injury (AKI) and diabetes mellitus (DM) are public health problems that cause a high socioeconomic burden worldwide. In recent years, the landscape of AKI etiology has shifted: Emerging evidence has demonstrated that DM is an independent risk factor for the onset of AKI, while an alternative perspective considers AKI as a bona fide complication of DM. Therefore, it is necessary to systematically characterize the features of AKI in DM. In this review, we summarized the epidemiology of AKI in DM. While focusing on circulation- and tissue-specific microenvironment changes after DM, we described the active cellular and molecular mechanisms of increased kidney susceptibility to AKI under DM stress. We also reviewed the current diagnostic and therapeutic strategies for AKI in DM recommended in the clinic. Updated recognition of the epidemiology, pathophysiology, diagnosis, and medications of AKI in DM is believed to reveal a path to mitigate the frequency of AKI and DM comorbidity that will ultimately improve the quality of life in DM patients.
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Affiliation(s)
- Yuan Gui
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
| | - Zachary Palanza
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
| | - Haiyan Fu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, 15261, USA
| | - Dong Zhou
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT, 06030, USA
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10
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Tanemoto F, Nangaku M, Mimura I. Epigenetic memory contributing to the pathogenesis of AKI-to-CKD transition. Front Mol Biosci 2022; 9:1003227. [PMID: 36213117 PMCID: PMC9532834 DOI: 10.3389/fmolb.2022.1003227] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 08/24/2022] [Indexed: 11/18/2022] Open
Abstract
Epigenetic memory, which refers to the ability of cells to retain and transmit epigenetic marks to their daughter cells, maintains unique gene expression patterns. Establishing programmed epigenetic memory at each stage of development is required for cell differentiation. Moreover, accumulating evidence shows that epigenetic memory acquired in response to environmental stimuli may be associated with diverse diseases. In the field of kidney diseases, the “memory” of acute kidney injury (AKI) leads to progression to chronic kidney disease (CKD); epidemiological studies show that patients who recover from AKI are at high risk of developing CKD. The underlying pathological processes include nephron loss, maladaptive epithelial repair, inflammation, and endothelial injury with vascular rarefaction. Further, epigenetic alterations may contribute as well to the pathophysiology of this AKI-to-CKD transition. Epigenetic changes induced by AKI, which can be recorded in cells, exert long-term effects as epigenetic memory. Considering the latest findings on the molecular basis of epigenetic memory and the pathophysiology of AKI-to-CKD transition, we propose here that epigenetic memory contributing to AKI-to-CKD transition can be classified according to the presence or absence of persistent changes in the associated regulation of gene expression, which we designate “driving” memory and “priming” memory, respectively. “Driving” memory, which persistently alters the regulation of gene expression, may contribute to disease progression by activating fibrogenic genes or inhibiting renoprotective genes. This process may be involved in generating the proinflammatory and profibrotic phenotypes of maladaptively repaired tubular cells after kidney injury. “Priming” memory is stored in seemingly successfully repaired tubular cells in the absence of detectable persistent phenotypic changes, which may enhance a subsequent transcriptional response to the second stimulus. This type of memory may contribute to AKI-to-CKD transition through the cumulative effects of enhanced expression of profibrotic genes required for wound repair after recurrent AKI. Further understanding of epigenetic memory will identify therapeutic targets of future epigenetic intervention to prevent AKI-to-CKD transition.
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11
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Husain-Syed F, Reis T, Kashani K, Ronco C. Advances in laboratory detection of acute kidney injury. Pract Lab Med 2022; 31:e00283. [PMID: 35677313 PMCID: PMC9168173 DOI: 10.1016/j.plabm.2022.e00283] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2022] [Revised: 04/27/2022] [Accepted: 05/24/2022] [Indexed: 12/14/2022] Open
Abstract
Recent advances have improved our understanding of the epidemiology and pathophysiology of acute kidney injury (AKI). So far, the Kidney Disease: Improving Global Outcome guidelines define and stratify kidney injury based on increases in serum creatinine level and/or decreases in urine output. Although the term AKI acknowledges the existence of cellular injury, its diagnosis is still only defined by the reduced excretory function of the kidney. New biomarkers that aid a better understanding of the relationship between acute tubular injury and kidney dysfunction have been identified, reflecting the advances in molecular biology. The expression of some of these novel biomarkers precedes changes in conventional biomarkers or can increase their predictive power. Therefore, they might enhance the clinical accuracy of the definition of AKI. This review summarizes the limitations of the current AKI classification and a panel of candidate biomarkers for augmenting AKI classification and recognition of AKI subphenotypes. We expect that the integration of appropriately selected biomarkers in routine clinical practice can improve AKI care.
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Affiliation(s)
- Faeq Husain-Syed
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Klinikstraße 33, 35392, Giessen, Germany
| | - Thiago Reis
- Laboratory of Molecular Pharmacology, Faculty of Health Sciences, University of Brasília, Brasília, Distrito Federal, Brazil
- Department of Nephrology and Kidney Transplantation, Clínica de Doenças Renais de Brasília, DF Star Hospital, Rede D'Or São Luiz, Brasília, Distrito Federal, Brazil
| | - Kianoush Kashani
- Division of Nephrology and Hypertension, Division of Pulmonary and Critical Care Medicine, Department of Medicine, Mayo Clinic, Rochester, MN, USA
| | - Claudio Ronco
- Department of Medicine (DIMED), Università di Padova, Via Giustiniani, 2–35128, Padua, Italy
- International Renal Research Institute of Vicenza, Via Rodolfi, 37–36100, Vicenza, Italy
- Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Via Rodolfi, 37–36100, Vicenza, Italy
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12
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Biochemical interaction of pyrvinium in gentamicin-induced acute kidney injury by modulating calcium dyshomeostasis and mitochondrial dysfunction. Chem Biol Interact 2022; 363:110020. [PMID: 35750223 DOI: 10.1016/j.cbi.2022.110020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 06/03/2022] [Accepted: 06/15/2022] [Indexed: 11/21/2022]
Abstract
Acute kidney injury (AKI) has a poor clinical prognosis and increases the risk of chronic kidney failure (CKD). It is a common complication of organ failure in hospitalised patients (10-15% of all hospitalizations) and in intensive care unit (ICU) patients, with an incidence of up to 50%. Concerning ICU, AKI has a mortality rate ranging from 27% to 35%, rising to 60%-65% when dialysis is needed, with roughly 5%-20% of survivors requiring dialysis on discharge. AKI is believed to cause over 7 million deaths per year worldwide. Currently, there is no treatment for AKI or its progression to CKD. When activated by AKI, numerous pathways have been suggested as possible contributors to CKD progression. Wnt/β-catenin is a crucial regulator of kidney development that increases following the injury. Despite the overwhelming evidence that Wnt/β-catenin promotes AKI, tubulointerstitial fibrosis, a hallmark of CKD progression, is also promoted by this pathway. The therapeutic potential of Wnt/β-catenin in the treatment of AKI and the progression from AKI to CKD is being studied. This hypothesis aims to determine whether the Wnt/β-catenin inhibitor pyrvinium has a beneficial effect on the renal dysfunction and damage caused by Gentamicin.
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13
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Sun Y, Fan Y, Wang Z, Li M, Su D, Liu Y, Liang X. S100A16 promotes acute kidney injury by activating HRD1-induced ubiquitination and degradation of GSK3β and CK1α. Cell Mol Life Sci 2022; 79:184. [PMID: 35279748 PMCID: PMC8918193 DOI: 10.1007/s00018-022-04213-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 11/29/2022]
Abstract
AbstractThe pathogenesis of acute kidney injury (AKI) is associated with the activation of multiple signaling pathways, including Wnt/β-catenin signaling. However, the mechanism of Wnt/β-catenin pathway activation in renal interstitial fibroblasts during AKI is unclear. S100 calcium-binding protein A16 (S100A16), a new member of calcium-binding protein S100 family, is a multi-functional signaling factor involved in various pathogenies, including tumors, glycolipid metabolism disorder, and chronic kidney disease (CKD). We investigated the potential participation of S100A16 in Wnt/β-catenin pathway activation during AKI by subjecting wild-type (WT) and S100A16 knockout (S100A16+/−) mice to the ischemia–reperfusion injury (IRI), and revealed S100A16 upregulation in this model, in which knockout of S100A16 impeded the Wnt/β-catenin signaling pathway activation and recovered the expression of downstream hepatocyte growth factor (HGF). We also found that S100A16 was highly expressed in Platelet-derived growth factor receptor beta (PDGFRβ) positive renal fibroblasts in vivo. Consistently, in rat renal interstitial fibroblasts (NRK-49F cells), both hypoxia/reoxygenation and S100A16 overexpression exacerbated fibroblasts apoptosis and inhibited HGF secretion; whereas S100A16 knockdown or Wnt/β-catenin pathway inhibitor ICG-001 reversed these changes. Mechanistically, we showed that S100A16 promoted Wnt/β-catenin signaling activation via the ubiquitylation and degradation of β-catenin complex members, glycogen synthase kinase 3β (GSK3β) and casein kinase 1α (CK1α), mediated by E3 ubiquitin ligase, the HMG-CoA reductase degradation protein 1 (HRD1). Our study identified the S100A16 as a key regulator in the activation of Wnt/β-catenin signaling pathway in AKI.
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Affiliation(s)
- Yifei Sun
- Department of Pathophysiology, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Ya Fan
- Department of Pathology, Nanjing Medical University, Nanjing, 211166, China
| | - Zheng Wang
- Department of Pathophysiology, Nanjing Medical University, Nanjing, 211166, Jiangsu, China
| | - Min Li
- Department of Pathology, Nanjing Medical University, Nanjing, 211166, China
| | - Dongming Su
- Department of Pathology, Nanjing Medical University, Nanjing, 211166, China
| | - Yun Liu
- Department of Geratology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Xiubin Liang
- Department of Pathophysiology, Nanjing Medical University, Nanjing, 211166, Jiangsu, China.
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14
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Wang S, Liang Y, Dai C. Metabolic Regulation of Fibroblast Activation and Proliferation during Organ Fibrosis. KIDNEY DISEASES (BASEL, SWITZERLAND) 2022; 8:115-125. [PMID: 35527985 DOI: 10.1159/000522417] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 01/29/2022] [Indexed: 12/13/2022]
Abstract
Background Activated fibroblasts are present in the injury response, tumorigenesis, fibrosis, and inflammation in a variety of tissues and myriad disease types. Summary During normal tissue repair, quiescent fibroblasts transform into a proliferative and contractile phenotype termed myofibroblasts and are then lost as repair resolves to form a scar. When excessive levels are reached, activated fibroblasts proliferate and produce large amounts of extracellular matrix, which accumulates in the interstitial space of different organs. This accumulation leads to fibrotic dysfunction and multiple-organ dysfunction syndrome. To date, there are limited effective treatments for these conditions. Cellular metabolism is the cornerstone of all biological activities. Emerging evidence shows that metabolic alterations in fibroblasts are important for the activation process and illness progression. These discoveries, along with current clinical advances showing decreased lung fibrosis after targeting specific metabolic pathways, thus offer new possibilities for therapeutic interventions. The purpose of this review was to summarize the most recent knowledge of the major metabolic changes that occur during fibroblast transition from quiescent to activated states and the evidence linking alterations in fibroblast metabolism to the pathobiology of several common fibrotic diseases and tumor-related diseases. Key Messages Metabolic disorders are associated with the progression of chronic kidney diseases. Interfering with fibroblast metabolism may be a promising therapeutic strategy for renal fibrosis and other fibrosis-related diseases.
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Affiliation(s)
- Sudan Wang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yan Liang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Chunsun Dai
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, China.,Department of Clinical Genetics, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, China
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15
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Zhou S, Guo J, Liao X, Zhou Q, Qiu X, Jiang S, Xu N, Wang X, Zhao L, Hu W, Xie L, Xie P, Cui Y, Yang Y, Patzak A, Persson PB, Mao J, Lai EY. rhADAMTS13 reduces oxidative stress by cleaving VWF in ischaemia/reperfusion-induced acute kidney injury. Acta Physiol (Oxf) 2022; 234:e13778. [PMID: 34989474 DOI: 10.1111/apha.13778] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 11/17/2021] [Accepted: 01/03/2022] [Indexed: 12/17/2022]
Abstract
AIMS Acute kidney injury (AKI), a major health burden, lacks effective therapy. Anti-inflammatory actions of a disintegrin and metalloproteinase with a thrombospondin type 1 motif member 13 (ADAMTS13) may provide a new treatment option for AKI. Along with inflammation, oxidative stress is critical for AKI development, yet the impact of ADAMTS13 on oxidative stress in AKI remains to be fully elucidated. METHODS We assess recombinant human ADAMTS13 (rhADAMTS13) actions on oxidative stress in a murine ischaemia/reperfusion (IR) model. Antioxidant stress-enzyme activities, renal morphology, kidney function markers and vascular function of isolated afferent arterioles are quantified. RESULTS rhADAMTS13 provided after IR, reduces blood urea nitrogen (BUN) by 33% and serum creatinine (Scr) by 73% in 24 hours post-IR. rhADAMTS13 reduces BUN (40.03 ± 20.34 mmol/L vs 72.35 ± 18.74 mmol/L, P < .01), Scr (75.67 ± 51.19 μmol/L vs 176.17 ± 55.38 μmol/L, P < .01) and proteinuria by 41% in 48 hours post-IR as well. Moreover, rhADAMTS13 administration decreases malondialdehyde (MDA) and increases the activity of antioxidant stress enzymes, and attenuates reactive oxygen species production. rhADAMTS13 also upregulates nuclear factor-erythroid-2-related factor 2/haem oxygenase-1, enhances antioxidant enzymes activity and alleviates endothelial dysfunction. Finally, treatment with rhADAMTS13 mitigates severe functional and morphological injury present in IR mice. Extracellular signal-regulated kinase (ERK) phosphorylation is limited by rhADAMTS13 and PPARγ expression is partly restored in ischaemic kidneys. Co-administration of von Willebrand factor (VWF) impairs rhADAMTS13's antioxidant capacity and its protective role in IR. CONCLUSION rhADAMTS13 alleviates renal IR injury through antioxidant effects by cleaving VWF.
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Affiliation(s)
- Suhan Zhou
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Jie Guo
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Xinxin Liao
- Department of Anesthesiology Nanfang Hospital Southern Medical University Guangzhou China
| | - Qin Zhou
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Xingyu Qiu
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Shan Jiang
- Department of Nephrology Center of Kidney and Urology the Seventh Affiliated Hospital Sun Yat‐sen University Shenzhen China
| | - Nan Xu
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
- Department of Pathophysiology School of Basic Medical Sciences Henan University Kaifeng China
| | - Xiaohua Wang
- Department of Nephrology Center of Kidney and Urology the Seventh Affiliated Hospital Sun Yat‐sen University Shenzhen China
| | - Liang Zhao
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Weipeng Hu
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Lanyu Xie
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Peng Xie
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Yu Cui
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Yi Yang
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
| | - Andreas Patzak
- Charité–Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
| | - Pontus B. Persson
- Charité–Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
| | - Jianhua Mao
- Department of Nephrology the Children's Hospital of Zhejiang University School of Medicine Hangzhou China
| | - En Yin Lai
- Kidney Disease Center of the First Affiliated Hospital and Department of Physiology School of Basic Medical Sciences Zhejiang University School of Medicine Hangzhou China
- Department of Nephrology Center of Kidney and Urology the Seventh Affiliated Hospital Sun Yat‐sen University Shenzhen China
- Charité–Universitätsmedizin Berlin Corporate Member of Freie Universität Berlin Humboldt‐Universität zu Berlin, and Berlin Institute of Health Institute of Vegetative Physiology Berlin Germany
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16
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Hong X, Zhou Y, Wang D, Lyu F, Guan T, Liu Y, Xiao L. Exogenous Wnt1 Prevents Acute Kidney Injury and Its Subsequent Progression to Chronic Kidney Disease. Front Physiol 2021; 12:745816. [PMID: 34819873 PMCID: PMC8606814 DOI: 10.3389/fphys.2021.745816] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 10/18/2021] [Indexed: 12/17/2022] Open
Abstract
Studies suggest that Wnt/β-catenin agonists are beneficial in the treatment of acute kidney injury (AKI); however, it remains elusive about its role in the prevention of AKI and its progression to chronic kidney disease (CKD). In this study, renal Wnt/β-catenin signaling was either activated by overexpression of exogenous Wnt1 or inhibited by administration with ICG-001, a small molecule inhibitor of β-catenin signaling, before mice were subjected to ischemia/reperfusion injury (IRI) to induce AKI and subsequent CKD. Our results showed that in vivo expression of exogenous Wnt1 before IR protected mice against AKI, and impeded the progression of AKI to CKD in mice, as evidenced by both blood biochemical and kidney histological analyses. In contrast, pre-treatment of ICG-001 before IR had no effect on renal Wnt/β-catenin signaling or the progression of AKI to CKD. Mechanistically, in vivo expression of exogenous Wnt1 before IR suppressed the expression of proapoptotic proteins in AKI mice, and reduced inflammatory responses in both AKI and CKD mice. Additionally, exogenous Wnt1 inhibited apoptosis of tubular cells induced by hypoxia-reoxygenation (H/R) treatment in vitro. To conclude, the present study provides evidences to support the preventive effect of Wnt/β-catenin activation on IR-related AKI and its subsequent progression to CKD.
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Affiliation(s)
- Xue Hong
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanni Zhou
- Department of Nephrology, Xiamen Hospital Affiliated to Beijing University of Chinese Medicine, Xiamen, China
| | - Dedong Wang
- Department of Nephrology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, China
| | - Fuping Lyu
- Department of Endocrinology and Diabetes, The First Affiliated Hospital of Xiamen University, Xiamen, China
| | - Tianjun Guan
- Department of Nephrology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, China
| | - Youhua Liu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Liangxiang Xiao
- Department of Nephrology, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, China
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17
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Fu H, Gui Y, Liu S, Wang Y, Bastacky SI, Qiao Y, Zhang R, Bonin C, Hargis G, Yu Y, Kreutzer DL, Biswas PS, Zhou Y, Wang Y, Tian XJ, Liu Y, Zhou D. The hepatocyte growth factor/c-met pathway is a key determinant of the fibrotic kidney local microenvironment. iScience 2021; 24:103112. [PMID: 34622165 PMCID: PMC8479790 DOI: 10.1016/j.isci.2021.103112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 04/20/2021] [Accepted: 09/08/2021] [Indexed: 11/25/2022] Open
Abstract
The kidney local microenvironment (KLM) plays a critical role in the pathogenesis of kidney fibrosis. However, the composition and regulation of a fibrotic KLM remain unclear. Through a multidisciplinary approach, we investigated the roles of the hepatocyte growth factor/c-met signaling pathway in regulating KLM formation in various chronic kidney disease (CKD) models. We performed a retrospective analysis of single-cell RNA sequencing data and determined that tubular epithelial cells and macrophages are two major cell populations in a fibrotic kidney. We then created a mathematical model that predicted loss of c-met in tubular cells would cause greater responses to injury than loss of c-met in macrophages. By generating c-met conditional knockout mice, we validated that loss of c-met influences epithelial plasticity, myofibroblast activation, and extracellular matrix synthesis/degradation, which ultimately determined the characteristics of the fibrotic KLM. Our findings open the possibility of designing effective therapeutic strategies to retard CKD.
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Affiliation(s)
- Haiyan Fu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA.,State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yuan Gui
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Silvia Liu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Yuanyuan Wang
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Sheldon Ira Bastacky
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Yi Qiao
- Department of Surgery, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Rong Zhang
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Christopher Bonin
- Department of Medicine, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Geneva Hargis
- Department of Medicine, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Yanbao Yu
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
| | - Donald L Kreutzer
- Department of Surgery, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Partha Sarathi Biswas
- Division of Rheumatology and Clinical Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Yanjiao Zhou
- Department of Medicine, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Yanlin Wang
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT 06030, USA
| | - Xiao-Jun Tian
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Youhua Liu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15261, USA
| | - Dong Zhou
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, CT 06030, USA
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18
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de Ponte MC, Cardoso VG, Gonçalves GL, Costa-Pessoa JM, Oliveira-Souza M. Early type 1 diabetes aggravates renal ischemia/reperfusion-induced acute kidney injury. Sci Rep 2021; 11:19028. [PMID: 34561469 PMCID: PMC8463569 DOI: 10.1038/s41598-021-97839-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 08/23/2021] [Indexed: 12/15/2022] Open
Abstract
The present study aimed to investigate the interaction between early diabetes and renal IR-induced AKI and to clarify the mechanisms involved. C57BL/6J mice were assigned to the following groups: (1) sham-operated; (2) renal IR; (3) streptozotocin (STZ-55 mg/kg/day) and sham operation; and (4) STZ and renal IR. On the 12th day after treatments, the animals were subjected to bilateral IR for 30 min followed by reperfusion for 48 h, at which time the animals were euthanized. Renal function was assessed by plasma creatinine and urea levels, as well urinary protein contents. Kidney morphology and gene and protein expression were also evaluated. Compared to the sham group, renal IR increased plasma creatinine, urea and albuminuria levels and decreased Nphs1 mRNA expression and nephrin and WT1 protein staining. Tubular injury was observed with increased Havcr1 and Mki67 mRNA expression accompanied by reduced megalin staining. Renal IR also resulted in increased SQSTM1 protein expression and increased proinflammatory and profibrotic factors mRNA expression. Although STZ treatment resulted in hyperglycemia, it did not induce significant changes in renal function. On the other hand, STZ treatment aggravated renal IR-induced AKI by exacerbating renal dysfunction, glomerular and tubular injury, inflammation, and profibrotic responses. Thus, early diabetes constitutes a relevant risk factor for renal IR-induced AKI.
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Affiliation(s)
- Mariana Charleaux de Ponte
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, SP, 05508-900, Brazil
| | - Vanessa Gerolde Cardoso
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, SP, 05508-900, Brazil
| | - Guilherme Lopes Gonçalves
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, SP, 05508-900, Brazil
| | - Juliana Martins Costa-Pessoa
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, SP, 05508-900, Brazil
| | - Maria Oliveira-Souza
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, SP, 05508-900, Brazil.
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19
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The bright side of fibroblasts: molecular signature and regenerative cues in major organs. NPJ Regen Med 2021; 6:43. [PMID: 34376677 PMCID: PMC8355260 DOI: 10.1038/s41536-021-00153-z] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 07/22/2021] [Indexed: 02/07/2023] Open
Abstract
Fibrosis is a pathologic process characterized by the replacement of parenchymal tissue by large amounts of extracellular matrix, which may lead to organ dysfunction and even death. Fibroblasts are classically associated to fibrosis and tissue repair, and seldom to regeneration. However, accumulating evidence supports a pro-regenerative role of fibroblasts in different organs. While some organs rely on fibroblasts for maintaining stem cell niches, others depend on fibroblast activity, particularly on secreted molecules that promote cell adhesion, migration, and proliferation, to guide the regenerative process. Herein we provide an up-to-date overview of fibroblast-derived regenerative signaling across different organs and discuss how this capacity may become compromised with aging. We further introduce a new paradigm for regenerative therapies based on reverting adult fibroblasts to a fetal/neonatal-like phenotype.
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20
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Husain-Syed F, Villa G, Wilhelm J, Samoni S, Matt U, Vadász I, Tello K, Jennert B, Biol HD, Trauth J, Kassoumeh S, Arneth B, Renz H, Sander M, Herold S, Seeger W, Schunk SJ, Speer T, Birk HW, Ronco C. Renal markers for monitoring acute kidney injury transition to chronic kidney disease after COVID-19. Nephrol Dial Transplant 2021; 36:2143-2147. [PMID: 34373917 DOI: 10.1093/ndt/gfab235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Indexed: 11/13/2022] Open
Abstract
URL http://www.clinicaltrials.gov. Unique identifier: NCT04353583.
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Affiliation(s)
- Faeq Husain-Syed
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany.,International Renal Research Institute of Vicenza, Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy
| | - Gianluca Villa
- Department of Health Science, Section of Anesthesiology and Intensive Care, University of Florence, Florence, Italy
| | - Jochen Wilhelm
- Institute for Lung Health (ILH), Justus-Liebig-University Giessen, Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL)
| | - Sara Samoni
- International Renal Research Institute of Vicenza, Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy
| | - Ulrich Matt
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL)
| | - István Vadász
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL)
| | - Khodr Tello
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL)
| | - Birgit Jennert
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany
| | - Hartmut Dietrich Biol
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany
| | - Janina Trauth
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany
| | | | - Borros Arneth
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus-Liebig-University Giessen, Giessen, Germany
| | - Harald Renz
- Institute of Laboratory Medicine and Pathobiochemistry, Molecular Diagnostics, Justus-Liebig-University Giessen, Giessen, Germany.,Sechenov First Moscow State Medical University, Moscow, Russia
| | - Michael Sander
- Department of Anesthesiology, Intensive Care Medicine and Pain Therapy, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany
| | - Susanne Herold
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL)
| | - Werner Seeger
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany.,Institute for Lung Health (ILH), Justus-Liebig-University Giessen, Giessen, Germany.,Universities of Giessen and Marburg Lung Center (UGMLC), Member of the German Center for Lung Research (DZL).,Max Planck Institute for Heart and Lung Research, Department of Lung Development and Remodelling, Bad Nauheim, Germany
| | - Stefan J Schunk
- Department of Internal Medicine IV, Division of Nephrology and Hypertension, Sarland University Medical Center, Homburg/Saar, Germany
| | - Thimoteus Speer
- Department of Internal Medicine IV, Division of Nephrology and Hypertension, Sarland University Medical Center, Homburg/Saar, Germany.,Translational Cardiorenal Medicine, Saarland University, Homburg/Saar, Germany
| | - Horst-Walter Birk
- Department of Internal Medicine II, University Hospital Giessen and Marburg, Justus-Liebig-University Giessen, Giessen, Germany
| | - Claudio Ronco
- International Renal Research Institute of Vicenza, Department of Nephrology, Dialysis and Transplantation, San Bortolo Hospital, Vicenza, Italy.,University of Padua, Department of Medicine (DIMED), Padua, Italy
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21
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Ye Y, Xu L, Ding H, Wang X, Luo J, Zhang Y, Zen K, Fang Y, Dai C, Wang Y, Zhou Y, Jiang L, Yang J. Pyruvate kinase M2 mediates fibroblast proliferation to promote tubular epithelial cell survival in acute kidney injury. FASEB J 2021; 35:e21706. [PMID: 34160104 DOI: 10.1096/fj.202100040r] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 05/14/2021] [Accepted: 05/17/2021] [Indexed: 12/29/2022]
Abstract
Acute kidney injury (AKI) is a devastating condition with high morbidity and mortality rates. The pathological features of AKI are tubular injury, infiltration of inflammatory cells, and impaired vascular integrity. Pyruvate kinase is the final rate-limiting enzyme in the glycolysis pathway. We previously showed that pyruvate kinase M2 (PKM2) plays an important role in regulating the glycolytic reprogramming of fibroblasts in renal interstitial fibrosis. The present study aimed to determine the role of PKM2 in fibroblast activation during the pathogenesis of AKI. We found increased numbers of S100A4 positive cells expressing PKM2 in renal tissues from mice with AKI induced via folic acid or ischemia/reperfusion (I/R). The loss of PKM2 in fibroblasts impaired fibroblast proliferation and promoted tubular epithelial cell death including apoptosis, necroptosis, and ferroptosis. Mechanistically, fibroblasts produced less hepatocyte growth factor (HGF) in response to a loss of PKM2. Moreover, in two AKI mouse models, fibroblast-specific deletion of PKM2 blocked HGF signal activation and aggravated AKI after it was induced in mice via ischemia or folic acid. Fibroblast proliferation mediated by PKM2 elicits pro-survival signals that repress tubular cell death and may help to prevent AKI progression. Fibroblast activation mediated by PKM2 in AKI suggests that targeting PKM2 expression could be a novel strategy for treating AKI.
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Affiliation(s)
- Yinyin Ye
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China.,Department of Nephrology, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Lingling Xu
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Hao Ding
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Xiao Wang
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Jing Luo
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yu Zhang
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Ke Zen
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University Advanced Institute of Life Sciences, Nanjing University, Nanjing, China
| | - Yi Fang
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Chunsun Dai
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Yuwei Wang
- Department of Nephrology, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Yang Zhou
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Lei Jiang
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
| | - Junwei Yang
- Center for Kidney Disease, The Second Affiliated Hospital, Nanjing Medical University, Nanjing, China
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22
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Shaw IW, O'Sullivan ED, Pisco AO, Borthwick G, Gallagher KM, Péault B, Hughes J, Ferenbach DA. Aging modulates the effects of ischemic injury upon mesenchymal cells within the renal interstitium and microvasculature. Stem Cells Transl Med 2021; 10:1232-1248. [PMID: 33951342 PMCID: PMC8284778 DOI: 10.1002/sctm.20-0392] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 02/05/2021] [Accepted: 03/04/2021] [Indexed: 12/18/2022] Open
Abstract
The renal mesenchyme contains heterogeneous cells, including interstitial fibroblasts and pericytes, with key roles in wound healing. Although healing is impaired in aged kidneys, the effect of age and injury on the mesenchyme remains poorly understood. We characterized renal mesenchymal cell heterogeneity in young vs old animals and after ischemia‐reperfusion‐injury (IRI) using multiplex immunolabeling and single cell transcriptomics. Expression patterns of perivascular cell markers (α‐SMA, CD146, NG2, PDGFR‐α, and PDGFR‐β) correlated with their interstitial location. PDGFR‐α and PDGFR‐β co‐expression labeled renal myofibroblasts more efficiently than the current standard marker α‐SMA, and CD146 was a superior murine renal pericyte marker. Three renal mesenchymal subtypes; pericytes, fibroblasts, and myofibroblasts, were recapitulated with data from two independently performed single cell transcriptomic analyzes of murine kidneys, the first dataset an aging cohort and the second dataset injured kidneys following IRI. Mesenchymal cells segregated into subtypes with distinct patterns of expression with aging and following injury. Baseline uninjured old kidneys resembled post‐ischemic young kidneys, with this phenotype further exaggerated following IRI. These studies demonstrate that age modulates renal perivascular/interstitial cell marker expression and transcriptome at baseline and in response to injury and provide tools for the histological and transcriptomic analysis of renal mesenchymal cells, paving the way for more accurate classification of renal mesenchymal cell heterogeneity and identification of age‐specific pathways and targets.
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Affiliation(s)
- Isaac W Shaw
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.,Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, UK
| | - Eoin D O'Sullivan
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.,Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | | | - Gary Borthwick
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Kevin M Gallagher
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.,Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - Bruno Péault
- Centre for Regenerative Medicine, University of Edinburgh, Edinburgh, UK.,Orthopaedic Hospital Research Center and Broad Stem Cell Research Center, David Geffen School of Medicine, University of California, Los Angeles, California, USA
| | - Jeremy Hughes
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.,Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
| | - David A Ferenbach
- Centre for Inflammation Research, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK.,Department of Renal Medicine, Royal Infirmary of Edinburgh, Edinburgh, UK
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23
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Abstract
Renal epithelial cells show remarkable regenerative capacity to recover from acute injury, which involves specific phenotypic changes, but also significant profibrotic tubule-interstitial crosstalk. Tubule-derived profibrotic stimuli and subsequent myofibroblast activation and extracellular matrix deposition have been linked closely with decline of renal function and nephron loss. However, recent data have questioned the view of purely detrimental effects of myofibroblast activation in the injured kidney and even suggested its beneficial role for epithelial regeneration. This article reviews the current understanding of the underlying mechanisms of tubular cell turnover, new suggested pathways of proregenerative tubular-interstitial crosstalk, and relevant insights of proliferation-enhancing effects of myofibroblasts on epithelial cells in nonrenal tissues.
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24
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Huffstater T, Merryman WD, Gewin LS. Wnt/β-Catenin in Acute Kidney Injury and Progression to Chronic Kidney Disease. Semin Nephrol 2021; 40:126-137. [PMID: 32303276 DOI: 10.1016/j.semnephrol.2020.01.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Acute kidney injury (AKI) portends a poor clinical prognosis and increases the risk for the development of chronic kidney disease (CKD). Currently, there are no therapies to treat AKI or prevent its progression to CKD. Wnt/β-catenin is a critical regulator of kidney development that is up-regulated after injury. Most of the literature support a beneficial role for Wnt/β-catenin in AKI, but suggest that this pathway promotes the progression of tubulointerstitial fibrosis, the hallmark of CKD progression. We review the role of Wnt/β-catenin in renal injury with a focus on its potential as a therapeutic target in AKI and in AKI to CKD transition.
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Affiliation(s)
- Tessa Huffstater
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN
| | - W David Merryman
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN
| | - Leslie S Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN; Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, TN; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN.
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25
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Hernandez-Santini AC, Mitha AN, Chow D, Hamed MF, Gucwa AL, Vaval V, Martinez LR. Methamphetamine facilitates pulmonary and splenic tissue injury and reduces T cell infiltration in C57BL/6 mice after antigenic challenge. Sci Rep 2021; 11:8207. [PMID: 33859291 PMCID: PMC8050260 DOI: 10.1038/s41598-021-87728-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 04/01/2021] [Indexed: 12/21/2022] Open
Abstract
Methamphetamine (METH) is a strong addictive central nervous system stimulant. METH abuse can alter biological processes and immune functions necessary for host defense. The acquisition and transmission of HIV, hepatitis, and other communicable diseases are possible serious infectious consequences of METH use. METH also accumulates extensively in major organs. Despite METH being a major public health and safety problem globally, there are limited studies addressing the impact of this popular recreational psychostimulant on tissue adaptive immune responses after exposure to T cell dependent [ovalbumin (OVA)] and independent [lipopolysaccharide (LPS)] antigens. We hypothesized that METH administration causes pulmonary and splenic tissue alterations and reduces T cell responses to OVA and LPS in vivo, suggesting the increased susceptibility of users to infection. Using a murine model of METH administration, we showed that METH causes tissue injury, apoptosis, and alters helper and cytotoxic T cell recruitment in antigen challenged mice. METH also reduces the expression and distribution of CD3 and CD28 molecules on the surface of human Jurkat T cells. In addition, METH decreases the production of IL-2 in these T-like cells, suggesting a negative impact on T lymphocyte activation and proliferation. Our findings demonstrate the pleotropic effects of METH on cell-mediated immunity. These alterations have notable implications on tissue homeostasis and the capacity of the host to respond to infection.
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Affiliation(s)
| | - Anum N Mitha
- Department of Biomedical Sciences, NYIT College of Osteopathic Medicine, New York Institute of Technology, Old Westbury, NY, USA
| | - Daniela Chow
- Department of Biological Sciences, The Border Biomedical Research Center, The University of Texas at El Paso, El Paso, TX, USA
| | - Mohamed F Hamed
- Department of Oral Biology, University of Florida College of Dentistry, 1395 Center Drive, Room DG-48, P.O. Box 100424, Gainesville, FL, 32610, USA.,Department of Pathology, Faculty of Veterinary Medicine, Mansoura University, Mansoura, Egypt
| | - Azad L Gucwa
- Department of Biology, Farmingdale State College, Farmingdale, NY, USA
| | - Valerie Vaval
- Department of Biomedical Sciences, Long Island University, C. W. Post, Brookville, NY, USA
| | - Luis R Martinez
- Department of Oral Biology, University of Florida College of Dentistry, 1395 Center Drive, Room DG-48, P.O. Box 100424, Gainesville, FL, 32610, USA.
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26
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de Araújo L, Costa-Pessoa JM, de Ponte MC, Oliveira-Souza M. Sodium Oxalate-Induced Acute Kidney Injury Associated With Glomerular and Tubulointerstitial Damage in Rats. Front Physiol 2020; 11:1076. [PMID: 32982795 PMCID: PMC7479828 DOI: 10.3389/fphys.2020.01076] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Accepted: 08/05/2020] [Indexed: 12/14/2022] Open
Abstract
Acute crystalline nephropathy is closely related to tubulointerstitial injury, but few studies have investigated glomerular changes in this condition. Thus, in the current study, we investigated the factors involved in glomerular and tubulointerstitial injury in an experimental model of crystalline-induced acute kidney injury (AKI). We treated male Wistar rats with a single injection of sodium oxalate (NaOx, 7 mg⋅100 g-1⋅day-1, resuspended in 0.9% NaCl solution, i.p.) or vehicle (control). After 24 h of treatment, food and water intake, urine output, body weight gain, and renal function were evaluated. Renal tissue was used for the morphological studies, quantitative PCR and protein expression studies. Our results revealed that NaOx treatment did not change metabolic or electrolyte and water intake parameters or urine output. However, the treated group exhibited tubular calcium oxalate (CaOx) crystals excretion, followed by a decline in kidney function demonstrated along with glomerular injury, which was confirmed by increased plasma creatinine and urea concentrations, increased glomerular desmin immunostaining, nephrin mRNA expression and decreased WT1 immunofluorescence. Furthermore, NaOx treatment resulted in tubulointerstitial injury, which was confirmed by tubular dilation, albuminuria, increased Kim-1 and Ki67 mRNA expression, decreased megalin and Tamm-Horsfall protein (THP) expression. Finally, the treatment induced increases in CD68 protein staining, MCP-1, IL-1β, NFkappaB, and α-SMA mRNA expression, which are consistent with proinflammatory and profibrotic signaling, respectively. In conclusion, our findings provide relevant information regarding crystalline-induced AKI, showing strong tubulointerstitial and glomerular injury with a possible loss of podocyte viability.
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Affiliation(s)
- Larissa de Araújo
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Juliana Martins Costa-Pessoa
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Mariana Charleaux de Ponte
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Maria Oliveira-Souza
- Laboratory of Renal Physiology, Department of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
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27
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WNT-β-catenin signalling - a versatile player in kidney injury and repair. Nat Rev Nephrol 2020; 17:172-184. [PMID: 32989282 DOI: 10.1038/s41581-020-00343-w] [Citation(s) in RCA: 199] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/06/2020] [Indexed: 12/11/2022]
Abstract
The WNT-β-catenin system is an evolutionary conserved signalling pathway that is of particular importance for morphogenesis and cell organization during embryogenesis. The system is usually suppressed in adulthood; however, it can be re-activated in organ injury and regeneration. WNT-deficient mice display severe kidney defects at birth. Transient WNT-β-catenin activation stimulates tissue regeneration after acute kidney injury, whereas sustained (uncontrolled) WNT-β-catenin signalling promotes kidney fibrosis in chronic kidney disease (CKD), podocyte injury and proteinuria, persistent tissue damage during acute kidney injury and cystic kidney diseases. Additionally, WNT-β-catenin signalling is involved in CKD-associated vascular calcification and mineral bone disease. The WNT-β-catenin pathway is tightly regulated, for example, by proteins of the Dickkopf (DKK) family. In particular, DKK3 is released by 'stressed' tubular epithelial cells; DKK3 drives kidney fibrosis and is associated with short-term risk of CKD progression and acute kidney injury. Thus, targeting the WNT-β-catenin pathway might represent a promising therapeutic strategy in kidney injury and associated complications.
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28
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Zhang C, Shang Y, Chen X, Midgley AC, Wang Z, Zhu D, Wu J, Chen P, Wu L, Wang X, Zhang K, Wang H, Kong D, Yang Z, Li Z, Chen X. Supramolecular Nanofibers Containing Arginine-Glycine-Aspartate (RGD) Peptides Boost Therapeutic Efficacy of Extracellular Vesicles in Kidney Repair. ACS NANO 2020; 14:12133-12147. [PMID: 32790341 DOI: 10.1021/acsnano.0c05681] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Extracellular vesicles (EVs) derived from mesenchymal stem cells (MSC-EVs) have been recognized as a promising cell-free therapy for acute kidney injury (AKI), which avoids safety concerns associated with direct cell engraftment. However, low stability and retention of MSC-EVs have limited their therapeutic efficacy. RGD (Arg-Gly-Asp) peptide binds strongly to integrins, which have been identified on the surface of MSC-EV membranes; yet RGD has not been applied to EV scaffolds to enhance and prolong bioavailability. Here, we developed RGD hydrogels, which we hypothesized could augment MSC-EV efficacy in the treatment of AKI models. In vivo tracking of the labeled EVs revealed that RGD hydrogels increased retention and stability of EVs. Integrin gene knockdown experiments confirmed that EV-hydrogel interaction was mediated by RGD-integrin binding. Upon intrarenal injection into mouse AKI models, EV-RGD hydrogels provided superior rescuing effects to renal function, attenuated histopathological damage, decreased tubular injury, and promoted cell proliferation in early phases of AKI. RGD hydrogels also augmented antifibrotic effects of MSC-EVs in chronic stages. Further analysis revealed that the presence of microRNA let-7a-5p in MSC-EVs served as the mechanism contributing to the reduced cell apoptosis and elevated cell autophagy in AKI. In conclusion, RGD hydrogels facilitated MSC-derived let-7a-5p-containing EVs, improving reparative potential against AKI. This study developed an RGD scaffold to increase the EV integrin-mediated loading and in turn improved therapeutic efficacy in renal repair; therefore this strategy shed light on MSC-EV application as a cell-free treatment for potentiated efficiency.
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Affiliation(s)
- Chuyue Zhang
- School of Medicine, Nankai University, Tianjin 300071, China
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Yuna Shang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
| | - Xiaoniao Chen
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Adam C Midgley
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
| | - Zhongyan Wang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
| | - Dashuai Zhu
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Jie Wu
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Pu Chen
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Lingling Wu
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Xu Wang
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Kaiyue Zhang
- School of Medicine, Nankai University, Tianjin 300071, China
| | - Hongfeng Wang
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Deling Kong
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
| | - Zhimou Yang
- State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Key Laboratory of Bioactive Materials, Ministry of Education, Collaborative Innovation Center of Chemical Science and Engineering, and National Institute of Functional Materials, Nankai University, Tianjin 300071, China
- Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Cancer Institute, Xuzhou Medical University, Xuzhou, Jiangsu 221004, China
| | - Zongjin Li
- School of Medicine, Nankai University, Tianjin 300071, China
- Henan Key Laboratory of Medical Tissue Regeneration, Xinxiang Medical University, 601 Jinsui Road, Xinxiang, Henan 453003, China
| | - Xiangmei Chen
- School of Medicine, Nankai University, Tianjin 300071, China
- Department of Nephrology, State Key Laboratory of Kidney Diseases, National Clinical Research Center for Kidney Diseases, Chinese PLA Institute of Nephrology, Beijing Key Laboratory of Kidney Diseases, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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Arai H, Yanagita M. Janus-Faced: Molecular Mechanisms and Versatile Nature of Renal Fibrosis. KIDNEY360 2020; 1:697-704. [PMID: 35372942 PMCID: PMC8815544 DOI: 10.34067/kid.0001972020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 05/14/2020] [Indexed: 04/23/2023]
Abstract
Renal fibrosis is a major hallmark of CKD, regardless of the underlying etiology. In fibrosis development and progression, myofibroblasts play a pivotal role, producing extracellular matrix and interacting with various resident cells in the kidney. Over the past decade, the origin of myofibroblasts has been thoroughly investigated. Emerging evidence suggests that renal myofibroblasts originate from several cellular sources, including resident fibroblasts, pericytes, and bone marrow-derived cells. The contribution of resident fibroblasts is most crucial, and currently available data strongly suggest the importance of functional heterogeneity and plasticity of fibroblasts in kidney disease progression. Resident fibroblasts acquire distinct phenotypes based on their local microenvironment and exert multifactorial functions. For example, age-dependent alterations of renal fibroblasts make a significant contribution to the formation of tertiary lymphoid tissues, which promote local inflammation after injury in the aged kidney. In conjunction with fibrosis development, dysfunction of resident fibroblasts provokes unique pathologic conditions including renal anemia and peritubular capillary loss, both of which are major complications of CKD. Although renal fibrosis is considered detrimental in general, recent studies suggest it has beneficial roles, such as maintaining functional crosstalk with injured proximal tubular cells and supporting their regeneration. These findings provide novel insight into the mechanisms of renal fibrosis, which could be regarded as an adaptive process of kidney injury and repair. Precise understanding of the functional heterogeneity of resident fibroblasts and myofibroblasts has the potential to facilitate the development of novel therapeutics against kidney diseases. In this review, we describe the current perspective on the origin of myofibroblasts and fibroblast heterogeneity, with special emphasis on the dual aspects of renal fibrosis, both beneficial and detrimental, in CKD progression.
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Affiliation(s)
- Hiroyuki Arai
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Motoko Yanagita
- Department of Nephrology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Institute for the Advanced Study of Human Biology (ASHBi), Kyoto University, Kyoto, Japan
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30
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Nlandu-Khodo S, Osaki Y, Scarfe L, Yang H, Phillips-Mignemi M, Tonello J, Saito-Diaz K, Neelisetty S, Ivanova A, Huffstater T, McMahon R, Taketo MM, deCaestecker M, Kasinath B, Harris RC, Lee E, Gewin LS. Tubular β-catenin and FoxO3 interactions protect in chronic kidney disease. JCI Insight 2020; 5:135454. [PMID: 32369448 DOI: 10.1172/jci.insight.135454] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 04/22/2020] [Indexed: 12/18/2022] Open
Abstract
The Wnt/β-catenin signaling pathway plays an important role in renal development and is reexpressed in the injured kidney and other organs. β-Catenin signaling is protective in acute kidney injury (AKI) through actions on the proximal tubule, but the current dogma is that Wnt/β-catenin signaling promotes fibrosis and development of chronic kidney disease (CKD). As the role of proximal tubular β-catenin signaling in CKD remains unclear, we genetically stabilized (i.e., activated) β-catenin specifically in murine proximal tubules. Mice with increased tubular β-catenin signaling were protected in 2 murine models of AKI to CKD progression. Oxidative stress, a common feature of CKD, reduced the conventional T cell factor/lymphoid enhancer factor-dependent β-catenin signaling and augmented FoxO3-dependent activity in proximal tubule cells in vitro and in vivo. The protective effect of proximal tubular β-catenin in renal injury required the presence of FoxO3 in vivo. Furthermore, we identified cystathionine γ-lyase as a potentially novel transcriptional target of β-catenin/FoxO3 interactions in the proximal tubule. Thus, our studies overturned the conventional dogma about β-catenin signaling and CKD by showing a protective effect of proximal tubule β-catenin in CKD and identified a potentially new transcriptional target of β-catenin/FoxO3 signaling that has therapeutic potential for CKD.
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Affiliation(s)
- Stellor Nlandu-Khodo
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA.,Institute of Physiology, University of Zurich, Zurich, Switzerland
| | - Yosuke Osaki
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Lauren Scarfe
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Haichun Yang
- Department of Pathology, Microbiology and Immunology, VUMC, Nashville, Tennessee, USA
| | - Melanie Phillips-Mignemi
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Jane Tonello
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | | | - Surekha Neelisetty
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Alla Ivanova
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Tessa Huffstater
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, USA
| | - Robert McMahon
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - M Mark Taketo
- Division of Experimental Therapeutics, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Mark deCaestecker
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA
| | - Balakuntalam Kasinath
- Department of Medicine, Long School of Medicine, University of Texas Health San Antonio, San Antonio, Texas, USA
| | - Raymond C Harris
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA.,Department of Molecular Physiology and Biophysics, Vanderbilt University, Nashville, Tennessee, USA.,Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee, USA
| | - Ethan Lee
- Department of Cell and Developmental Biology and
| | - Leslie S Gewin
- Division of Nephrology and Hypertension, Department of Medicine, Vanderbilt University Medical Center (VUMC), Nashville, Tennessee, USA.,Department of Cell and Developmental Biology and.,Department of Medicine, Veterans Affairs Hospital, Tennessee Valley Healthcare System, Nashville, Tennessee, USA
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31
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Huang H, Huang X, Luo S, Zhang H, Hu F, Chen R, Huang C, Su Z. The MicroRNA MiR-29c Alleviates Renal Fibrosis via TPM1-Mediated Suppression of the Wnt/β-Catenin Pathway. Front Physiol 2020; 11:331. [PMID: 32346368 PMCID: PMC7171049 DOI: 10.3389/fphys.2020.00331] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/23/2020] [Indexed: 01/14/2023] Open
Abstract
Purpose This study aimed to evaluate the mechanism by which miR-29c expression in fibroblasts regulates renal interstitial fibrosis. Methods We stimulated NRK-49F cells with TGF-β1 to mimic the effects of fibrosis in vitro, while unilateral ureteral obstruction (UUO) was performed to obstruct the mid-ureter in mice. MiR-29c mimic or miR-29c inhibitor was used to mediate genes expressions in vitro. The recombinant adeno associated virus (rAAV) vectors carrying a FSP1 promoter that encodes miR-29c precursor or miR-29c inhibitor was used to mediate genes expressions in vivo, and a flank incision was made to expose the left kidney of each animal. Results In the present study, TGF-β1 was demonstrated to regulate miR-29c expression through Wnt/β-catenin signaling. In contrast, miR-29c appears to inhibit the Wnt/β-catenin pathway by suppressing TPM1 expression. As suggested by this feedback mechanism, miR-29c may be a key fibrosis-related microRNA expressed by fibroblasts in TGF-β1/Wnt/β-catenin-driven renal fibrosis, and manipulation of miR-29c action may accordingly offer a potential therapeutic pathway for renal fibrosis treatment. Conclusion MiR-29c expression was downregulated in UUO mouse kidneys as well as TGF-β1-treated NRK-49F cells, which thus inhibits myofibroblast formation via targeting of TPM1. Additionally, the production of extracellular matrix (ECM) in renal fibroblasts appears to be controlled by the reciprocal regulation of miR-29c action and the Wnt/β-catenin pathway.
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Affiliation(s)
- Huiya Huang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.,Department of Intensive Care Unit, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaozhong Huang
- Department of Pediatric Surgery, The Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, China
| | - Shengnan Luo
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Huidi Zhang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Feifei Hu
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Ruyi Chen
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Chaoxing Huang
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Zhen Su
- Department of Nephrology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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32
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Tian XJ, Zhou D, Fu H, Zhang R, Wang X, Huang S, Liu Y, Xing J. Sequential Wnt Agonist Then Antagonist Treatment Accelerates Tissue Repair and Minimizes Fibrosis. iScience 2020; 23:101047. [PMID: 32339988 PMCID: PMC7186527 DOI: 10.1016/j.isci.2020.101047] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 03/15/2020] [Accepted: 04/05/2020] [Indexed: 02/06/2023] Open
Abstract
Tissue fibrosis compromises organ function and occurs as a potential long-term outcome in response to acute tissue injuries. Currently, lack of mechanistic understanding prevents effective prevention and treatment of the progression from acute injury to fibrosis. Here, we combined quantitative experimental studies with a mouse kidney injury model and a computational approach to determine how the physiological consequences are determined by the severity of ischemia injury and to identify how to manipulate Wnt signaling to accelerate repair of ischemic tissue damage while minimizing fibrosis. The study reveals that memory of prior injury contributes to fibrosis progression and ischemic preconditioning reduces the risk of death but increases the risk of fibrosis. Furthermore, we validated the prediction that sequential combination therapy of initial treatment with a Wnt agonist followed by treatment with a Wnt antagonist can reduce both the risk of death and fibrosis in response to acute injuries.
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Affiliation(s)
- Xiao-Jun Tian
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, 3501 Fifth Avenue, Pittsburgh, PA 15261, USA; School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA.
| | - Dong Zhou
- Department of Pathology, School of Medicine, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15261, USA
| | - Haiyan Fu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Rong Zhang
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ 85287, USA
| | - Xiaojie Wang
- Department of Pathology, School of Medicine, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15261, USA
| | - Sui Huang
- Institute for Systems Biology, Seattle, WA, USA
| | - Youhua Liu
- Department of Pathology, School of Medicine, University of Pittsburgh, 200 Lothrop Street, Pittsburgh, PA 15261, USA; State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Jianhua Xing
- Department of Computational and Systems Biology, School of Medicine, University of Pittsburgh, 3501 Fifth Avenue, Pittsburgh, PA 15261, USA; Department of Physics, University of Pittsburgh, Pittsburgh, PA 15261, USA; UPMC-Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA 15232, USA.
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33
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Liu Y, Feng Q, Miao J, Wu Q, Zhou S, Shen W, Feng Y, Hou FF, Liu Y, Zhou L. C-X-C motif chemokine receptor 4 aggravates renal fibrosis through activating JAK/STAT/GSK3β/β-catenin pathway. J Cell Mol Med 2020; 24:3837-3855. [PMID: 32119183 PMCID: PMC7171406 DOI: 10.1111/jcmm.14973] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/18/2019] [Accepted: 12/24/2019] [Indexed: 12/13/2022] Open
Abstract
Chronic kidney disease (CKD) has a high prevalence worldwide. Renal fibrosis is the common pathological feature in various types of CKD. However, the underlying mechanisms are not determined. Here, we adopted different CKD mouse models and cultured human proximal tubular cell line (HKC-8) to examine the expression of C-X-C motif chemokine receptor 4 (CXCR4) and β-catenin signalling, as well as their relationship in renal fibrosis. In CKD mice and humans with a variety of nephropathies, CXCR4 was dramatically up-regulated in tubules, with a concomitant activation of β-catenin. CXCR4 expression level was positively correlated with the expression of β-catenin target MMP-7. AMD3100, a CXCR4 receptor blocker, and gene knockdown of CXCR4 significantly inhibited the activation of JAK/STAT and β-catenin signalling, protected against tubular injury and renal fibrosis. CXCR4-induced renal fibrosis was inhibited by treatment with ICG-001, an inhibitor of β-catenin signalling. In HKC-8 cells, overexpression of CXCR4 induced activation of β-catenin and deteriorated cell injury. These effects were inhibited by ICG-001. Stromal cell-derived factor (SDF)-1α, the ligand of CXCR4, stimulated the activation of JAK2/STAT3 and JAK3/STAT6 signalling in HKC-8 cells. Overexpression of STAT3 or STAT6 decreased the abundance of GSK3β mRNA. Silencing of STAT3 or STAT6 significantly blocked SDF-1α-induced activation of β-catenin and fibrotic lesions. These results uncover a novel mechanistic linkage between CXCR4 and β-catenin activation in renal fibrosis in association with JAK/STAT/GSK3β pathway. Our studies also suggest that targeted inhibition of CXCR4 may provide better therapeutic effects on renal fibrosis by inhibiting multiple downstream signalling cascades.
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Affiliation(s)
- Yahong Liu
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Division of Nephrology, The Second Affiliated Hospital of Xingtai Medical College, Xingtai, China
| | - Qijian Feng
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinhua Miao
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Qinyu Wu
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shan Zhou
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Weiwei Shen
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanqiu Feng
- School of Biomedical Engineering, Southern Medical University, Guangzhou, China
| | - Fan Fan Hou
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Youhua Liu
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lili Zhou
- Division of Nephrology, State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
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34
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Gao L, Zhong X, Jin J, Li J, Meng XM. Potential targeted therapy and diagnosis based on novel insight into growth factors, receptors, and downstream effectors in acute kidney injury and acute kidney injury-chronic kidney disease progression. Signal Transduct Target Ther 2020; 5:9. [PMID: 32296020 PMCID: PMC7018831 DOI: 10.1038/s41392-020-0106-1] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2019] [Revised: 12/01/2019] [Accepted: 12/17/2019] [Indexed: 02/08/2023] Open
Abstract
Acute kidney injury (AKI) is defined as a rapid decline in renal function and is characterized by excessive renal inflammation and programmed death of resident cells. AKI shows high morbidity and mortality, and severe or repeated AKI can transition to chronic kidney disease (CKD) or even end-stage renal disease (ESRD); however, very few effective and specific therapies are available, except for supportive treatment. Growth factors, such as epidermal growth factor (EGF), insulin-like growth factor (IGF), and transforming growth factor-β (TGF-β), are significantly altered in AKI models and have been suggested to play critical roles in the repair process of AKI because of their roles in cell regeneration and renal repair. In recent years, a series of studies have shown evidence that growth factors, receptors, and downstream effectors may be highly involved in the mechanism of AKI and may function in the early stage of AKI in response to stimuli by regulating inflammation and programmed cell death. Moreover, certain growth factors or correlated proteins act as biomarkers for AKI due to their sensitivity and specificity. Furthermore, growth factors originating from mesenchymal stem cells (MSCs) via paracrine signaling or extracellular vesicles recruit leukocytes or repair intrinsic cells and may participate in AKI repair or the AKI-CKD transition. In addition, growth factor-modified MSCs show superior therapeutic potential compared to that of unmodified controls. In this review, we summarized the current therapeutic and diagnostic strategies targeting growth factors to treat AKI in clinical trials. We also evaluated the possibilities of other growth factor-correlated molecules as therapeutic targets in the treatment of AKI and the AKI-CKD transition.
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Affiliation(s)
- Li Gao
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 230032, Hefei, China
| | - Xiang Zhong
- Department of Nephrology, Sichuan Academy of Medical Sciences & Sichuan Provincial People's Hospital, School of Medicine, University of Electronic Science and Technology of China, 610072, Chengdu, Sichuan, China
| | - Juan Jin
- Department of Pharmacology, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, 230032, Hefei, China
| | - Jun Li
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 230032, Hefei, China
| | - Xiao-Ming Meng
- The Key Laboratory of Major Autoimmune Diseases, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, 230032, Hefei, China.
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35
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Shen Y, Jiang L, Wen P, Ye Y, Zhang Y, Ding H, Luo J, Xu L, Zen K, Zhou Y, Yang J. Tubule-derived lactate is required for fibroblast activation in acute kidney injury. Am J Physiol Renal Physiol 2020; 318:F689-F701. [PMID: 31928224 DOI: 10.1152/ajprenal.00229.2019] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Acute kidney injury (AKI) is a highly prevalent medical syndrome associated with high mortality and morbidity. Several types of cells, including epithelial cells, vascular endothelial cells, pericytes, and macrophages, participate in the development of AKI. Recently, renal fibroblasts were found to play an important role in the regulation of tubular injury, repair, and recovery after AKI. However, the mechanisms underlying fibroblast activation and proliferation during the progression of AKI remain unclear. In the present study, we found many activated myofibroblasts located in the renal interstitium with an abundance of extracellular matrix deposition following folic acid-induced AKI. The proliferative pattern of tubular epithelial cells and interstitial cells following acute injury was different, indicating that the proliferation of fibroblasts followed the proliferation of tubular epithelial cells. Furthermore, we observed that proliferative tubular epithelial cells preferred aerobic glycolysis as the dominating metabolic pathway in the progression of AKI. Lactate generated from injured tubules was taken up by interstitial fibroblasts in the later stages of AKI, which induced fibroblast activation and proliferation in vitro. Early inhibition of lactate production in tubules by glycolytic inhibitors suppressed fibroblast activation after folic acid-induced injury. Collectively, these results support the important role of fibroblasts in the development of AKI and suggest that lactate produced by glycolysis in tubular epithelial cells is a novel regulator of fibroblast activation and proliferation.
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Affiliation(s)
- Yan Shen
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.,Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Lei Jiang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ping Wen
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yinyin Ye
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China.,Department of Nephrology, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Yu Zhang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Hao Ding
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jing Luo
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Lingling Xu
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Ke Zen
- State Key Laboratory of Pharmaceutical Biotechnology, Nanjing University Advanced Institute of Life Sciences, Nanjing, Jiangsu, China
| | - Yang Zhou
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Junwei Yang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
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36
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Zhou D, Fu H, Han Y, Zhang L, Liu S, Lin L, Stolz DB, Liu Y. Sonic hedgehog connects podocyte injury to mesangial activation and glomerulosclerosis. JCI Insight 2019; 4:130515. [PMID: 31647783 PMCID: PMC6948867 DOI: 10.1172/jci.insight.130515] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2019] [Accepted: 10/08/2019] [Indexed: 01/11/2023] Open
Abstract
Glomerular disease is characterized by proteinuria and glomerulosclerosis, two pathologic features caused by podocyte injury and mesangial cell activation, respectively. However, whether these two events are linked remains elusive. Here, we report that sonic hedgehog (Shh) is the mediator that connects podocyte damage to mesangial activation and glomerulosclerosis. Shh was induced in glomerular podocytes in various models of proteinuric chronic kidney diseases (CKD). However, mesangial cells in the glomeruli, but not podocytes, responded to hedgehog ligand. In vitro, Shh was induced in podocytes after injury and selectively promoted mesangial cell activation and proliferation. In a miniorgan culture of isolated glomeruli, Shh promoted mesangial activation but did not affect the integrity of podocytes. Podocyte-specific ablation of Shh in vivo exhibited no effect on proteinuria after adriamycin injection but hampered mesangial activation and glomerulosclerosis. Consistently, pharmacologic blockade of Shh signaling decoupled proteinuria from glomerulosclerosis. In humans, Shh was upregulated in glomerular podocytes in patients with CKD and its circulating level was associated with glomerulosclerosis but not proteinuria. These studies demonstrate that Shh mechanistically links podocyte injury to mesangial activation in the pathogenesis of glomerular diseases. Our findings also illustrate a crucial role for podocyte-mesangial communication in connecting proteinuria to glomerulosclerosis.
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Affiliation(s)
- Dong Zhou
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Haiyan Fu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yang Han
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | | | - Shijia Liu
- Department of Clinical Pharmacology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lin Lin
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Donna B. Stolz
- Department of Cell Biology and Physiology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Youhua Liu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
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37
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Zhou D, Fu H, Liu S, Zhang L, Xiao L, Bastacky SI, Liu Y. Early activation of fibroblasts is required for kidney repair and regeneration after injury. FASEB J 2019; 33:12576-12587. [PMID: 31461626 DOI: 10.1096/fj.201900651rr] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Acute kidney injury (AKI) is a devastating condition with high morbidity and mortality. AKI is characterized by tubular injury, inflammation, and vascular impairment. However, the role of interstitial fibroblasts in the pathogenesis of AKI is largely unknown. Here, we show that fibroblasts were activated, as defined by vimentin expression, at 1 h after AKI triggered by ischemia-reperfusion injury (IRI). They rapidly entered the cell cycle with Ki-67-positive staining, which started at 1 h and peaked at 12 h after IRI, whereas tubular cell proliferation peaked at 3 d. The trigger for such an early activation of fibroblasts was identified as sonic hedgehog (Shh), which was rapidly induced in renal tubules and could target interstitial fibroblasts. Tubule-specific knockout of Shh in mice inhibited fibroblast activation and aggravated kidney injury and functional decline after IRI. Likewise, pharmacologic inhibition of Shh signaling with cyclopamine also hindered fibroblast activation and exacerbated kidney damage. These studies uncover that tubule-derived Shh triggers the early activation of fibroblasts, which is required for kidney repair and regeneration. Our findings for the first time illustrate a previously unrecognized importance of interstitial fibroblasts in conferring renal protection in AKI.-Zhou, D., Fu, H., Liu, S., Zhang, L., Xiao, L., Bastacky, S. I., Liu, Y. Early activation of fibroblasts is required for kidney repair and regeneration after injury.
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Affiliation(s)
- Dong Zhou
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Haiyan Fu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Shijia Liu
- Department of Clinical Pharmacology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Lu Zhang
- Department of Nephrology, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, China
| | - Liangxiang Xiao
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Sheldon I Bastacky
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Youhua Liu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.,State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Zhuo H, Zhou D, Wang Y, Mo H, Yu Y, Liu Y. Sonic hedgehog selectively promotes lymphangiogenesis after kidney injury through noncanonical pathway. Am J Physiol Renal Physiol 2019; 317:F1022-F1033. [PMID: 31411078 DOI: 10.1152/ajprenal.00077.2019] [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] [Indexed: 02/08/2023] Open
Abstract
Kidney fibrosis is associated with an increased lymphangiogenesis, characterized by the formation and expansion of new lymphatic vessels. However, the trigger and underlying mechanism responsible for the growth of lymphatic vessels in diseased kidney remain poorly defined. Here, we report that tubule-derived sonic hedgehog (Shh) ligand is a novel lymphangiogenic factor that plays a crucial role in mediating lymphatic endothelial cell proliferation and expansion. Shh was induced in renal tubular epithelium in various models of fibrotic chronic kidney disease, and this was accompanied by an expansion of lymphatic vessels in adjacent areas. In vitro, Shh selectively promoted the proliferation of human dermal lymphatic endothelial cells (HDLECs) but not human umbilical vein endothelial cells, as assessed by cell counting, MTT assay, and bromodeoxyuridine incorporation. Shh also induced the expression of vascular endothelial growth factor receptor-3, cyclin D1, and proliferating cell nuclear antigen in HDLECs. Shh did not affect the expression of Gli1, the downstream target and readout of canonical hedgehog signaling, but activated ERK-1/2 in HDLECs. Inhibition of Smoothened with small-molecule inhibitor or blockade of ERK-1/2 activation abolished the lymphatic endothelial cell proliferation induced by Shh. In vivo, inhibition of Smoothened also repressed lymphangiogenesis and attenuated renal fibrosis. This study identifies Shh as a novel mitogen that selectively promotes lymphatic, but not vascular, endothelial cell proliferation and suggests that tubule-derived Shh plays an essential role in mediating lymphangiogenesis after kidney injury.
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Affiliation(s)
- Hui Zhuo
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Dong Zhou
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Yuanyuan Wang
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Hongyan Mo
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Ying Yu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Youhua Liu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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Cerdá J. A biomarker able to predict acute kidney injury before it occurs? Lancet 2019; 394:448-450. [PMID: 31202595 DOI: 10.1016/s0140-6736(19)30843-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2019] [Accepted: 04/01/2019] [Indexed: 12/14/2022]
Affiliation(s)
- Jorge Cerdá
- Albany Medical College and St Peter's Healthcare Partners, Albany, NY 12208, USA.
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40
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Schunk SJ, Zarbock A, Meersch M, Küllmar M, Kellum JA, Schmit D, Wagner M, Triem S, Wagenpfeil S, Gröne HJ, Schäfers HJ, Fliser D, Speer T, Zewinger S. Association between urinary dickkopf-3, acute kidney injury, and subsequent loss of kidney function in patients undergoing cardiac surgery: an observational cohort study. Lancet 2019; 394:488-496. [PMID: 31202596 DOI: 10.1016/s0140-6736(19)30769-x] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 03/11/2019] [Accepted: 03/18/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND Cardiac surgery is associated with a high risk of postoperative acute kidney injury (AKI) and subsequent loss of kidney function. We explored the clinical utility of urinary dickkopf-3 (DKK3), a renal tubular stress marker, for preoperative identification of patients at risk for AKI and subsequent kidney function loss. METHODS This observational cohort study included patients who had cardiac surgery in a derivation cohort and those who had cardiac surgery in a validation cohort (RenalRIP trial). The study comprised consecutive patients who had elective cardiac surgery at the Saarland University Medical Centre (Homburg, Germany; derivation cohort) and those undergoing elective cardiac surgery (selected on the basis of a Cleveland Clinical Foundation score of 6 or higher) who were enrolled in the prospective RenalRIP multicentre trial (validation cohort) and who were randomly assigned to remote ischaemic preconditioning or a sham procedure. The association between the ratio of preoperative urinary concentrations of DKK3 to creatinine (DKK3:creatinine) and postoperative AKI, defined according to the Kidney Disease Improving Global Outcomes criteria, and subsequent kidney function loss, as determined by estimated glomerular filtration rate, was assessed. FINDINGS In the 733 patient in the derivation cohort, urinary concentrations of DKK3 to creatinine that were higher than 471 pg/mg were associated with significantly increased risk for AKI (odds ratio [OR] 1·65, 95% CI 1·10-2·47, p=0·015), independent of baseline kidney function. Compared with clinical and other laboratory measurements, urinary concentrations of DKK3:creatinine significantly improved AKI prediction (net reclassification improvement 0·32, 95% CI 0·23-0·42, p<0·0001). High urinary DKK3:creatinine concentrations were independently associated with significantly lower kidney function at hospital discharge and after a median follow-up of 820 days (IQR 733-910). In the RenalRIP trial, preoperative urinary DKK3:creatinine concentrations higher than 471 pg/mg were associated with a significantly higher risk for AKI (OR 1·94, 95% CI 1·08-3·47, p=0·026), persistent renal dysfunction (OR 6·67, 1·67-26·61, p=0·0072), and dialysis dependency (OR 13·57, 1·50-122·77, p=0·020) after 90 days compared with DKK3:creatinine concentrations of 471 pg/mg or less. Urinary DKK3:creatinine concentrations higher than 471 pg/mg were associated with significantly higher risk for AKI (OR 2·79, 95% CI 1·45-5·37) and persistent renal dysfunction (OR 3·82, 1·32-11·05) only in patients having a sham procedure, but not remote ischaemic preconditioning (AKI OR 1·35, 0·76-2·39 and persistent renal dysfunction OR 1·05, 0·12-9·45). INTERPRETATION Preoperative urinary DKK3 is an independent predictor for postoperative AKI and for subsequent loss of kidney function. Urinary DKK3 might aid in the identification of patients in whom preventive treatment strategies are effective. FUNDING No study funding.
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Affiliation(s)
- Stefan J Schunk
- Department of Internal Medicine 4, Nephrology and Hypertension, Saarland University Medical Centre, Homburg, Germany
| | - Alexander Zarbock
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Melanie Meersch
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, University Hospital Münster, Münster, Germany
| | - Mira Küllmar
- Department of Anaesthesiology, Intensive Care Medicine and Pain Medicine, University Hospital Münster, Münster, Germany
| | - John A Kellum
- Center for Critical Care Nephrology, Department of Critical Care Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - David Schmit
- Department of Internal Medicine 4, Nephrology and Hypertension, Saarland University Medical Centre, Homburg, Germany
| | - Martina Wagner
- Department of Internal Medicine 4, Nephrology and Hypertension, Saarland University Medical Centre, Homburg, Germany
| | - Sarah Triem
- Department of Internal Medicine 4, Nephrology and Hypertension, Saarland University Medical Centre, Homburg, Germany
| | - Stefan Wagenpfeil
- Institute of Medical Biometry, Epidemiology and Medical Informatics, Saarland University, Homburg, Germany
| | - Hermann-Josef Gröne
- Department of Cellular and Molecular Pathology, German Cancer Research Centre, Heidelberg, Germany
| | - Hans-Joachim Schäfers
- Department of Thoracic and Cardiovascular Surgery, Saarland University Medical Centre, Homburg, Germany
| | - Danilo Fliser
- Department of Internal Medicine 4, Nephrology and Hypertension, Saarland University Medical Centre, Homburg, Germany
| | - Thimoteus Speer
- Department of Internal Medicine 4, Nephrology and Hypertension, Saarland University Medical Centre, Homburg, Germany.
| | - Stephen Zewinger
- Department of Internal Medicine 4, Nephrology and Hypertension, Saarland University Medical Centre, Homburg, Germany; Department of Nephrology, Hôpitaux Robert Schuman, Hôpital Kirchberg, Luxembourg, Luxembourg
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Lu X, Rudemiller NP, Ren J, Wen Y, Yang B, Griffiths R, Privratsky JR, Madan B, Virshup DM, Crowley SD. Opposing actions of renal tubular- and myeloid-derived porcupine in obstruction-induced kidney fibrosis. Kidney Int 2019; 96:1308-1319. [PMID: 31585741 DOI: 10.1016/j.kint.2019.06.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 06/03/2019] [Accepted: 06/20/2019] [Indexed: 02/06/2023]
Abstract
Wnt/β-catenin signaling is essential in the pathogenesis of renal fibrosis. We previously reported inhibition of the Wnt O-acyl transferase porcupine, required for Wnt secretion, dramatically attenuates kidney fibrosis in the murine unilateral ureteral obstruction model. Here, we investigated the tissue-specific contributions of porcupine to renal fibrosis and inflammation in ureteral obstruction using mice with porcupine deletion restricted to the kidney tubular epithelium or infiltrating myeloid cells. Obstruction of the ureter induced the renal mRNA expression of porcupine and downstream targets, β-catenin, T-cell factor, and lymphoid enhancer factor in wild type mice. Renal tubular specific deficiency of porcupine reduced the expression of collagen I and other fibrosis markers in the obstructed kidney. Moreover, kidneys from obstructed mice with tubule-specific porcupine deficiency had reduced macrophage accumulation with attenuated expression of myeloid cytokine and chemokine mRNA. In co-culture with activated macrophages, renal tubular cells from tubular-specific porcupine knockout mice had blunted induction of fibrosis mediators compared with wild type renal tubular cells. In contrast, macrophages from macrophage-specific porcupine deficient mice in co-culture with wild type renal tubular cells had markedly enhanced expression of pro-fibrotic cytokines compared to wild type macrophages. Consequently, porcupine deletion specifically within macrophages augmented renal scar formation following ureteral obstruction. Thus, our experiments suggest a benefit of interrupting Wnt secretion specifically within the kidney epithelium while preserving Wnt O-acylation in infiltrating myeloid cells during renal fibrogenesis.
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Affiliation(s)
- Xiaohan Lu
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Nathan P Rudemiller
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Jiafa Ren
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Yi Wen
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Bo Yang
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Robert Griffiths
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Jamie R Privratsky
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA
| | - Babita Madan
- Program in Cancer and Stem Cell Biology, Duke-National University of Singapore Graduate Medical School, Singapore
| | - David M Virshup
- Program in Cancer and Stem Cell Biology, Duke-National University of Singapore Graduate Medical School, Singapore; Department of Pediatrics, Duke University School of Medicine, Durham, North Carolina, USA
| | - Steven D Crowley
- Department of Medicine, Duke University Medical Center, Durham, North Carolina, USA; Durham Veterans Affairs Medical Center, Durham, North Carolina, USA.
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42
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Gui Y, Lu Q, Gu M, Wang M, Liang Y, Zhu X, Xue X, Sun X, He W, Yang J, Zhao AZ, Xiao B, Dai C. Fibroblast mTOR/PPARγ/HGF axis protects against tubular cell death and acute kidney injury. Cell Death Differ 2019; 26:2774-2789. [PMID: 31024074 DOI: 10.1038/s41418-019-0336-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 04/08/2019] [Accepted: 04/11/2019] [Indexed: 02/05/2023] Open
Abstract
Kidney fibroblasts play a crucial role in dictating tubular cell fate and the outcome of acute kidney injury (AKI). The underlying mechanisms remain to be determined. Here, we found that mTOR signaling was activated in fibroblasts from mouse kidneys with ischemia/reperfusion injury (IRI). Ablation of fibroblast Rheb or Rictor promoted, while ablation of fibroblast Tsc1 protected against tubular cell death and IRI in mice. In tubular cells cultured with conditioned media (CM) from Rheb-/- or Rictor-/- fibroblasts, less hepatocyte growth factor (HGF) receptor c-met signaling activation or staurosporine-induced cell apoptosis was observed. While CM from Tsc1-/- fibroblasts promoted tubular cell c-met signaling activation and inhibited staurosporine-induced cell apoptosis. In kidney fibroblasts, blocking mTOR signaling downregulated the expression of peroxisome proliferator-activated receptor gamma (PPARγ) and HGF. Downregulating fibroblast HGF expression or blocking tubular cell c-met signaling facilitated tubular cell apoptosis. Notably, renal PPARγ and HGF expression was less in mice with fibroblast Rheb or Rictor ablation, but more in mice with fibroblast Tsc1 ablation than their littermate controls, respectively. Together, these data suggest that mTOR signaling activation in kidney fibroblasts protects against tubular cell death and dictates the outcome of AKI through stimulating PPARγ and HGF expression.
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Affiliation(s)
- Yuan Gui
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Qingmiao Lu
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Mengru Gu
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Mingjie Wang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Yan Liang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Xingwen Zhu
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Xian Xue
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Xiaoli Sun
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Weichun He
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Junwei Yang
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China
| | - Allan Zijian Zhao
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, 510515, Guangzhou, China
| | - Bo Xiao
- Neuroscience and Metabolism Research, the State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 610041, Chengdu, China
| | - Chunsun Dai
- Center for Kidney Disease, 2nd Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, China.
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Dong Y, Zhang Q, Wen J, Chen T, He L, Wang Y, Yin J, Wu R, Xue R, Li S, Fan Y, Wang N. Ischemic Duration and Frequency Determines AKI-to-CKD Progression Monitored by Dynamic Changes of Tubular Biomarkers in IRI Mice. Front Physiol 2019; 10:153. [PMID: 30873045 PMCID: PMC6401609 DOI: 10.3389/fphys.2019.00153] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2019] [Accepted: 02/08/2019] [Indexed: 01/06/2023] Open
Abstract
Ischemia reperfusion injury (IRI) is one of the most common causes of acute kidney injury (AKI). However, the pathogenesis and biomarkers predicting the progression of IRI-induced AKI to chronic kidney disease (CKD) remain unclear. A side-by-side comparison between different IRI animal models with variable ischemic duration and episodes was performed. The dynamic changes of KIM-1 and NGAL continuously from AKI to CKD phases were studied as well. Short-term duration of ischemia induced mild renal tubule-interstitial injury which was completely reversed at acute phase of kidney injury, while long-term duration of ischemia caused severe tubular damage, cell apoptosis and inflammatory infiltration at early disease stage, leading to permanent chronic kidney fibrosis at the late stage. Repeated attacks of moderate IRI accelerated the progression of AKI to CKD. Different from serum and urine levels of KIM-1 that increased at acute phase of IRI then declined gradually in chronic phase, NGAL increased continuously during AKI-to-CKD transition. Severity and frequency of ischemia injury determines the progression and outcome of ischemia-induced AKI. Inflammation, apoptosis and fibrogenesis likely participate in the progression of AKI to CKD. Both KIM-1 and NGAL enable noninvasive and early detection of AKI, but NGAL is associated better with the process of AKI-to-CKD progression.
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Affiliation(s)
- Yang Dong
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Qunzi Zhang
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jiejun Wen
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Teng Chen
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Li He
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yiyun Wang
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Jianyong Yin
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Rui Wu
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Rui Xue
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Shiqi Li
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Ying Fan
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Niansong Wang
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
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44
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Acute kidney injury to chronic kidney disease transition: insufficient cellular stress response. Curr Opin Nephrol Hypertens 2019; 27:314-322. [PMID: 29702491 DOI: 10.1097/mnh.0000000000000424] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW Recent epidemiological and preclinical mechanistic studies provide strong evidence that acute kidney injury (AKI) and chronic kidney disease (CKD) form an interconnected syndrome. Injured kidneys undergo a coordinated reparative process with an engagement of multiple cell types after injury; however, maladaptation to the injury subjects kidneys to a vicious cycle of fibrogenesis and nephron loss. In this review, we will outline and discuss the pathogenesis of AKI-to-CKD transition with an emphasis on dysregulated 'cellular stress adaptation' as a potential therapeutic target. RECENT FINDINGS Recent studies identify the crucial role of injured tubular epithelial cells in the transition from AKI to CKD. Damaged tubular cells undergo reactivation of developmental and epithelial-mesenchymal transition signaling, metabolic alteration, and cell-cycle arrest, thereby driving inflammation and fibrogenesis. Recent work highlights that cellular stress-adaptive pathways against hypoxic and oxidative stress provide insufficient protection after severe AKI episode. SUMMARY Insufficient cellular stress adaptation may underpin the persistent activation of inflammatory and fibrogenic signaling in damaged kidneys. We propose that harnessing cellular stress-adaptive responses will be a promising therapeutic strategy to halt or even reverse the deleterious process of AKI-to-CKD transition.
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45
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Higashi AY, Aronow BJ, Dressler GR. Expression Profiling of Fibroblasts in Chronic and Acute Disease Models Reveals Novel Pathways in Kidney Fibrosis. J Am Soc Nephrol 2018; 30:80-94. [PMID: 30545984 DOI: 10.1681/asn.2018060644] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Accepted: 11/07/2018] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Renal interstitial fibrosis results from activation and proliferation of fibroblasts to myofibroblasts, secretion and accumulation of extracellular matrix, and displacement of normal renal tubules. In contrast to chronic renal disease, acute injury may be repaired, a process that includes a decrease in the number of myofibroblasts in the interstitium and degradation of the accumulated extracellular matrix, leaving little evidence of prior injury. METHODS To investigate whether activated fibroblasts demonstrate changes in gene expression that correspond with regression after acute injury but are not observed in chronic models of fibrosis, we used microarrays to analyze gene expression patterns among fibroblast populations at different stages of injury or repair. We then mined the data for signaling pathways in fibroblasts corresponding to the acute proliferative, regression, and chronic phases of renal injury. RESULTS We identified multiple gene clusters with changes that correlate with the three phases of renal injury, including changes in levels of receptors for the antifibrotic factor PGE2. In adult renal fibroblast cultures, PGE2 was able to upregulate many genes that are suppressed by the profibrotic cytokine TGF-β, whereas many PGE2-downregulated genes were activated by TGF-β. High levels of TGF-β suppressed expression of a subset of PG receptors in fibroblast cultures, making these cells resistant to any effects of PGE2. CONCLUSIONS Inherent gene expression changes in activated fibroblasts accompany the transition from AKI to repair and regeneration. In chronic models, however, activated fibroblasts are resistant to the antifibrotic effects of PGE2 due to suppression of a subset of PGE receptors.
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Affiliation(s)
- Atsuko Y Higashi
- Department of Pathology, University of Michigan, Ann Arbor, Michigan; and
| | - Bruce J Aronow
- Department of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Gregory R Dressler
- Department of Pathology, University of Michigan, Ann Arbor, Michigan; and
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46
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Zuo Y, Liu Y. New insights into the role and mechanism of Wnt/β-catenin signalling in kidney fibrosis. Nephrology (Carlton) 2018; 23 Suppl 4:38-43. [PMID: 30298654 DOI: 10.1111/nep.13472] [Citation(s) in RCA: 66] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2018] [Indexed: 01/11/2023]
Affiliation(s)
- Yangyang Zuo
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital; Southern Medical University; Guangzhou China
| | - Youhua Liu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Division of Nephrology, Nanfang Hospital; Southern Medical University; Guangzhou China
- Department of Pathology; University of Pittsburgh School of Medicine; Pittsburgh Pennsylvania USA
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Sato Y, Yanagita M. Immune cells and inflammation in AKI to CKD progression. Am J Physiol Renal Physiol 2018; 315:F1501-F1512. [PMID: 30156114 DOI: 10.1152/ajprenal.00195.2018] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Acute kidney injury (AKI) is a common clinical state resulting from pathogenic conditions such as ischemic and toxic insults. The pathophysiology of AKI shares common pathogenic denominators including cell death/injury, inflammation, and fibrosis, regardless of the initiating insults. Recent clinical studies have shown that a single episode of AKI can lead to subsequent chronic kidney disease (CKD). Although the involvement of multiple types of cells in the pathophysiology of AKI is becoming increasingly clear, the precise mechanisms for this "AKI to CKD progression" are still unknown, and no drug has been shown to halt this progression. An increasing number of epidemiological studies have also revealed that the presence of aging greatly increases the risk of AKI to CKD progression, and chronic inflammation is increasingly recognized as an important determinant factor for this progression. In this review article, we first describe the current understanding of the pathophysiology of AKI to CKD progression based on multiple types of cells. In particular, we will highlight the recent findings in regard to the mechanisms for chronic inflammation after AKI. Subsequently, we will focus on the mechanisms responsible for the increased risk of AKI to CKD progression in the elderly. Finally, we highlight our recent finding of age-dependent tertiary lymphoid tissue formation and its roles in AKI to CKD progression and speculate on the potential therapeutic opportunities that come from targeting aberrant inflammation after AKI.
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Affiliation(s)
- Yuki Sato
- Medical Innovation Center TMK Project, Graduate School of Medicine, Kyoto University , Kyoto , Japan.,Department of Nephrology, Graduate School of Medicine, Kyoto University , Kyoto , Japan
| | - Motoko Yanagita
- Department of Nephrology, Graduate School of Medicine, Kyoto University , Kyoto , Japan
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Qin C, Li M, Bai T, Yang K, Xu T, Zhang J. Tisp40 deficiency limits renal inflammation and promotes tubular cell proliferation in renal ischemia reperfusion injury. Exp Cell Res 2018; 371:255-261. [PMID: 30121191 DOI: 10.1016/j.yexcr.2018.08.019] [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: 05/22/2018] [Revised: 08/15/2018] [Accepted: 08/16/2018] [Indexed: 12/20/2022]
Abstract
Renal ischemia reperfusion (IR) is a common cause of acute kidney injury (AKI), and no effective treatment is available to date. In our previous studies, we demonstrated that Tisp40 exacerbates tubular cell apoptosis and tubulointerstitial fibrosis after renal IR injury. However, the role of Tisp40 in renal inflammatory responses and tubular cell proliferation during renal IR injury remains unknown. In this study, Tisp40 knockout (KO) and wild-type (WT) mice were induced with or without renal IR injury. For renal IR, bilateral renal pedicels were exposed and clamped to induce 30 min of ischemia. After 48 h of reperfusion, the kidneys were collected for analyses. Results showed that Tisp40 deficiency attenuates neutrophil and macrophage infiltration after renal IR. Consistently, the protein levels of TNF-α and MCP-1 were markedly decreased, and the phosphorylation levels of IκBα and P65 were inhibited in Tisp40-deficient mice than in WT mice in renal IR injury. In addition, compared with WT mice, Tisp40 deficiency significantly increased the expression levels of proliferative cellular nuclear antigen and phosphorylated Erk1/2 after renal IR injury. In conclusion, Tisp40 deficiency limits renal inflammatory responses and promotes tubular cell proliferation in ischemic AKI.
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Affiliation(s)
- Cong Qin
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Ming Li
- Department of Critical Care Medicine, Shanghai General Hospital, Shanghai Jiaotong University, School of Medicine, Shanghai 201620, China
| | - Tao Bai
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Kang Yang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Tao Xu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China
| | - Jie Zhang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan 430060, China.
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49
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Wang W, Tang S, Li H, Liu R, Su Y, Shen L, Sun M, Ning B. MicroRNA-21a-5p promotes fibrosis in spinal fibroblasts after mechanical trauma. Exp Cell Res 2018; 370:24-30. [PMID: 29883711 DOI: 10.1016/j.yexcr.2018.06.002] [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] [Received: 05/13/2018] [Revised: 06/03/2018] [Accepted: 06/04/2018] [Indexed: 02/06/2023]
Abstract
Traumatic spinal cord injury (SCI) causes permanent disability to at least 180,000 people per year worldwide. Early regulation of spinal fibroblast proliferation may inhibit fibrotic scar formation, allowing the creation of a favorable environment for neuronal regeneration and thereby enhancing recovery from traumatic SCIs. In this study, we aimed to identify the role of microRNA-21a-5p (miR-21a-5p) in regulating spinal fibroblasts after mechanical trauma and to investigate the dysregulation of miR-21a-5p in the pathological process of spinal SCI. We investigated the differential expression of microRNAs in primary spinal fibroblasts after mechanical trauma and found that the expression of miR-21a-5p was higher in spinal fibroblasts after scratch damage (SD). In addition, mouse spinal fibroblasts were transfected with miR-21a-5p mimics/inhibitor, and the role of miR-21a-5p in spinal fibrogenic activation was analyzed. These experiments demonstrated that miR-21a-5p overexpression promoted fibrogenic activity in spinal fibroblasts after mechanical trauma, as well as enhancing proliferation and attenuating apoptosis in spinal fibroblasts. Finally, the potential role of miR-21a-5p in regulating the Smad signaling pathway was examined. MiR-21a-5p activated the Smad signaling pathway by enhancing Smad2/3 phosphorylation. These results suggest that miR-21a-5p promotes spinal fibrosis after mechanical trauma. Based on these findings, we propose a close relationship between miR-21a-5p and spinal fibrosis, providing a new potential therapeutic target for SCI.
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Affiliation(s)
- Wenzhao Wang
- Department of Spinal Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Shi Tang
- Department of Radiology, West China Hospital of Sichuan University, Chengdu, Sichuan, China
| | - Hongfei Li
- Department of Spinal Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Ronghan Liu
- Department of Spinal Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Yanlin Su
- Department of Spinal Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Lin Shen
- Department of Spinal Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Mingjie Sun
- Department of Spinal Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Bin Ning
- Department of Spinal Surgery, Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China.
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