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Neu C, Beckers C, Frank N, Thomas K, Bartneck M, Simon TP, Mossanen J, Peters K, Singendonk T, Martin L, Marx G, Kraemer S, Zechendorf E. Ribonuclease inhibitor 1 emerges as a potential biomarker and modulates inflammation and iron homeostasis in sepsis. Sci Rep 2024; 14:14972. [PMID: 38951571 PMCID: PMC11217267 DOI: 10.1038/s41598-024-65778-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 06/24/2024] [Indexed: 07/03/2024] Open
Abstract
Sepsis, marked by organ dysfunction, necessitates reliable biomarkers. Ribonuclease inhibitor 1 (RNH1), a ribonuclease (RNase) inhibitor, emerged as a potential biomarker for acute kidney injury and mortality in thoracoabdominal aortic aneurysm patients. Our study investigates RNH1 dynamics in sepsis, its links to mortality and organ dysfunction, and the interplay with RNase 1 and RNase 5. Furthermore, we explore RNH1 as a therapeutic target in sepsis-related processes like inflammation, non-canonical inflammasome activation, and iron homeostasis. We showed that RNH1 levels are significantly higher in deceased patients compared to sepsis survivors and correlate with creatine kinase, aspartate and alanine transaminase, bilirubin, serum creatinine and RNase 5, but not RNase 1. RNH1 mitigated LPS-induced TNFα and RNase 5 secretion, and relative mRNA expression of ferroptosis-associated genes HMOX1, FTH1 and HAMP in PBMCs. Monocytes were identified as the predominant type of LPS-positive PBMCs. Exogenous RNH1 attenuated LPS-induced CASP5 expression, while increasing IL-1β secretion in PBMCs and THP-1 macrophages. As RNH1 has contradictory effects on inflammation and non-canonical inflammasome activation, its use as a therapeutic agent is limited. However, RNH1 levels may play a central role in iron homeostasis during sepsis, supporting our clinical observations. Hence, RNH1 shows promise as biomarkers for renal and hepatic dysfunction and hepatocyte injury, and may be useful in predicting the outcome of septic patients.
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Affiliation(s)
- Carolina Neu
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Christian Beckers
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Nadine Frank
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Katharina Thomas
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Matthias Bartneck
- Department of Medicine III, University Hospital RWTH Aachen, 52074, Aachen, Germany
| | - Tim-Philipp Simon
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Jana Mossanen
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Kimmo Peters
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Tobias Singendonk
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Lukas Martin
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Gernot Marx
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Sandra Kraemer
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Elisabeth Zechendorf
- Department of Intensive and Intermediate Care, University Hospital RWTH Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
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Hu A, Nussbaum YI, Mitchem J, Yoo J. Colorectal Cancer-Associated Myofibroblasts Exhibit Enhanced Angiogenin Expression and Signaling via the PLXNB2 Receptor. J Surg Res 2024; 296:273-280. [PMID: 38295715 DOI: 10.1016/j.jss.2023.12.036] [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: 05/24/2023] [Revised: 12/11/2023] [Accepted: 12/30/2023] [Indexed: 03/19/2024]
Abstract
INTRODUCTION Dynamic cell-cell interactions shape the tumor microenvironment to regulate tumor growth and invasiveness. Myofibroblasts are gastrointestinal stromal cells that are upregulated in the setting of colorectal cancer (CRC) and may play an important role in tumor-stromal cell communication. Angiogenin is a 14-kDa ribonuclease that regulates myofibroblast function and has been implicated in myofibroblast-CRC cell communication in mouse models. However, its role in human patients has not been well established. METHODS Open access, annotated single-cell RNA sequencing data of paired normal human colon and CRC tissue were available in the National Center for Biotechnology Information Gene Expression Omnibus Database. We supplemented and verified these data by analyzing scRNA-seq data from an independent set of paired normal human colon and CRC tissue. CellChat was used to quantitatively infer biologically meaningful cell-cell communication networks from scRNA-seq data. PLXNB2 and α-2 actin (ACTA2) are cell surface angiogenin receptors that regulate angiogenin signaling. Ligand-receptor interactions involving angiogenin, PLXNB2, and ACTA2 were analyzed between cell populations in each sample. RESULTS We found no difference in overall angiogenin expression comparing normal colon and CRC tissue. In normal colon tissue, myofibroblasts do not express angiogenin or the PLXNB2 receptor. In the presence of CRC, there was a striking increase in the number of myofibroblast cells within the surrounding stroma. CRC-associated myofibroblasts were characterized by a significant upregulation of both angiogenin and PLXNB2 receptor expression (P < 0.05), while no difference was seen in ACTA2. CRC cells not only use angiogenin for autocrine signaling but also communicate with myofibroblasts via the PLXNB2 receptor. CONCLUSIONS Compared to normal human colon tissue, CRC tissue is associated with an enrichment of myofibroblasts that exhibit upregulated expression of angiogenin and the angiogenin receptor PLXNB2. CRC cells engage in autocrine signaling via angiogenin and paracrine signaling with myofibroblasts via PLXNB2. Angiogenin appears to be directly involved in tumor-stromal cell communication in human CRC tissue and may play an important role in disease progression.
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Affiliation(s)
- Alexander Hu
- Department of Surgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts
| | - Yulia I Nussbaum
- Institute for Data Science and Informatics, University of Missouri, Columbia, Missouri
| | - Jonathan Mitchem
- Institute for Data Science and Informatics, University of Missouri, Columbia, Missouri; Department of Surgery, Cleveland Clinic, Cleveland, Ohio
| | - James Yoo
- Department of Surgery, Harvard Medical School, Brigham and Women's Hospital, Boston, Massachusetts.
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Li D, Xie X, Yin N, Wu X, Yi B, Zhang H, Zhang W. tRNA-Derived Small RNAs: A Novel Regulatory Small Noncoding RNA in Renal Diseases. KIDNEY DISEASES (BASEL, SWITZERLAND) 2024; 10:1-11. [PMID: 38322624 PMCID: PMC10843216 DOI: 10.1159/000533811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 08/23/2023] [Indexed: 02/08/2024]
Abstract
Background tRNA-derived small RNAs (tsRNAs) are an emerging class of small noncoding RNAs derived from tRNA cleavage. Summary With the development of high-throughput sequencing, various biological roles of tsRNAs have been gradually revealed, including regulation of mRNA stability, transcription, translation, direct interaction with proteins and as epigenetic factors, etc. Recent studies have shown that tsRNAs are also closely related to renal disease. In clinical acute kidney injury (AKI) patients and preclinical AKI models, the production and differential expression of tsRNAs in renal tissue and plasma were observed. Decreased expression of tsRNAs was also found in urine exosomes from chronic kidney disease patients. Dysregulation of tsRNAs also appears in models of nephrotic syndrome and patients with lupus nephritis. And specific tsRNAs were found in high glucose model in vitro and in serum of diabetic nephropathy patients. In addition, tsRNAs were also differentially expressed in patients with kidney cancer and transplantation. Key Messages In the present review, we have summarized up-to-date works and reviewed the relationship and possible mechanisms between tsRNAs and kidney diseases.
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Affiliation(s)
- Dan Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, China
| | - Xian Xie
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, China
| | - Ni Yin
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, China
| | - Xueqin Wu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, China
| | - Bin Yi
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, China
| | - Wei Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, China
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Bejoy J, Farry JM, Qian ES, Dearing CH, Ware LB, Bastarache JA, Woodard LE. Ascorbate protects human kidney organoids from damage induced by cell-free hemoglobin. Dis Model Mech 2023; 16:dmm050342. [PMID: 37942584 PMCID: PMC10695115 DOI: 10.1242/dmm.050342] [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: 06/06/2023] [Accepted: 11/02/2023] [Indexed: 11/10/2023] Open
Abstract
Sepsis-associated acute kidney injury is associated with high morbidity and mortality in critically ill patients. Cell-free hemoglobin (CFH) is released into the circulation of patients with severe sepsis and the levels of CFH are independently associated with mortality. CFH treatment increased cytotoxicity in the human tubular epithelial cell line HK-2. To better model the intact kidney, we cultured human kidney organoids derived from induced pluripotent stem cells. We treated human kidney organoids grown using both three-dimensional and transwell protocols with CFH for 48 h. We found evidence for increased tubular toxicity, oxidative stress, mitochondrial fragmentation, endothelial cell injury and injury-associated transcripts compared to those of the untreated control group. To evaluate the protective effect of clinically available small molecules, we co-treated CFH-injured organoids with ascorbate (vitamin C) or acetaminophen for 48 h. We found significantly decreased toxicity, preservation of endothelial cells and reduced mitochondrial fragmentation in the group receiving ascorbate following CFH treatment. This study provides direct evidence that ascorbate or ascorbic acid protects human kidney cells from CFH-induced damage such as that in sepsis-associated acute kidney injury.
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Affiliation(s)
- Julie Bejoy
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Justin M. Farry
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, USA
| | - Eddie S. Qian
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Curtis H. Dearing
- Vanderbilt Experimental Research Training Inclusion Community Engagement Skills (VERTICES) program, Vanderbilt University, Nashville, TN 37232, USA
| | - Lorraine B. Ware
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Julie A. Bastarache
- Department of Medicine, Division of Allergy, Pulmonary and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Cell Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- U.S. Department of Veterans Affairs, Nashville, TN 37212, USA
| | - Lauren E. Woodard
- Department of Medicine, Division of Nephrology and Hypertension, Vanderbilt University Medical Center, Nashville, TN 37232, USA
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37232, USA
- U.S. Department of Veterans Affairs, Nashville, TN 37212, USA
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Wu D, Huang LF, Chen XC, Huang XR, Li HY, An N, Tang JX, Liu HF, Yang C. Research progress on endoplasmic reticulum homeostasis in kidney diseases. Cell Death Dis 2023; 14:473. [PMID: 37500613 PMCID: PMC10374544 DOI: 10.1038/s41419-023-05905-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 06/10/2023] [Accepted: 06/19/2023] [Indexed: 07/29/2023]
Abstract
The endoplasmic reticulum (ER) plays important roles in biosynthetic and metabolic processes, including protein and lipid synthesis, Ca2+ homeostasis regulation, and subcellular organelle crosstalk. Dysregulation of ER homeostasis can cause toxic protein accumulation, lipid accumulation, and Ca2+ homeostasis disturbance, leading to cell injury and even death. Accumulating evidence indicates that the dysregulation of ER homeostasis promotes the onset and progression of kidney diseases. However, maintaining ER homeostasis through unfolded protein response, ER-associated protein degradation, autophagy or ER-phagy, and crosstalk with other organelles may be potential therapeutic strategies for kidney disorders. In this review, we summarize the recent research progress on the relationship and molecular mechanisms of ER dysfunction in kidney pathologies. In addition, the endogenous protective strategies for ER homeostasis and their potential application for kidney diseases have been discussed.
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Affiliation(s)
- Dan Wu
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China
| | - Li-Feng Huang
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China
| | - Xiao-Cui Chen
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China
| | - Xiao-Rong Huang
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China
| | - Hui-Yuan Li
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China
| | - Ning An
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China
| | - Ji-Xin Tang
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China
| | - Hua-Feng Liu
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China.
| | - Chen Yang
- Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Key Laboratory of Prevention and Management of Chronic Kidney Disease of Zhanjiang City, Institute of Nephrology, Affiliated Hospital of Guangdong Medical University, 524001, Zhanjiang, Guangdong, China.
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Soluble Klotho protects against glomerular injury through regulation of ER stress response. Commun Biol 2023; 6:208. [PMID: 36813870 PMCID: PMC9947099 DOI: 10.1038/s42003-023-04563-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 02/07/2023] [Indexed: 02/24/2023] Open
Abstract
αKlotho (Klotho) has well established renoprotective effects; however, the molecular pathways mediating its glomerular protection remain incompletely understood. Recent studies have reported that Klotho is expressed in podocytes and protects glomeruli through auto- and paracrine effects. Here, we examined renal expression of Klotho in detail and explored its protective effects in podocyte-specific Klotho knockout mice, and by overexpressing human Klotho in podocytes and hepatocytes. We demonstrate that Klotho is not significantly expressed in podocytes, and transgenic mice with either a targeted deletion or overexpression of Klotho in podocytes lack a glomerular phenotype and have no altered susceptibility to glomerular injury. In contrast, mice with hepatocyte-specific overexpression of Klotho have high circulating levels of soluble Klotho, and when challenged with nephrotoxic serum have less albuminuria and less severe kidney injury compared to wildtype mice. RNA-seq analysis suggests an adaptive response to increased endoplasmic reticulum stress as a putative mechanism of action. To evaluate the clinical relevance of our findings, the results were validated in patients with diabetic nephropathy, and in precision cut kidney slices from human nephrectomies. Together, our data reveal that the glomeruloprotective effects of Klotho is mediated via endocrine actions, which increases its therapeutic potential for patients with glomerular diseases.
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Toll-like receptors 2 and 4 stress signaling and sodium-glucose cotransporter-2 in kidney disease. Mol Cell Biochem 2022:10.1007/s11010-022-04652-5. [PMID: 36586092 DOI: 10.1007/s11010-022-04652-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 12/23/2022] [Indexed: 01/01/2023]
Abstract
Kidney disease is the 6th fastest-growing cause of death and a serious global health concern that urges effective therapeutic options. The inflammatory response is an initial reaction from immune and parenchymal cells in kidney diseases. Toll-like receptors (TLR) 2 and 4 are highly expressed by various kidney cells and respond to 'signaling danger' proteins, such as high mobility group box binding protein 1 (HMGB1) and prompt the progression of kidney disease by releasing inflammatory mediators. Burgeoning reports suggest that both SGLT2 and ER stress elevates TLR2/4 signaling via different axis. Moreover, SGLT2 signaling aggravates inflammation under the disease condition by promoting the NLR family pyrin domain-containing three inflammasomes and ER stress. Intriguingly, TLR2/4 downstream adaptors activate ER stress regulators. The above-discussed interactions imply that TLR2/4 does more than immune response during kidney disease. Here, we discuss in detail evidence of the roles and regulation of TLR2/4 in the context of a relationship between ER stress and SGLT2. Also, we highlighted different preclinical studies of SGLT2 inhibitors against TLR2/4 signaling in various kidney diseases. Moreover, we discuss the observational and interventional evidence about the relation between TLR2/4, ER stress, and SGLT2, which may represent the TLR2/4 as a potential therapeutic target for kidney disease.
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8
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Porter AW, Brodsky JL, Buck TM. Emerging links between endoplasmic reticulum stress responses and acute kidney injury. Am J Physiol Cell Physiol 2022; 323:C1697-C1703. [PMID: 36280391 PMCID: PMC9722262 DOI: 10.1152/ajpcell.00370.2022] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/12/2022] [Accepted: 10/12/2022] [Indexed: 01/26/2023]
Abstract
All cell types must maintain homeostasis under periods of stress. To prevent the catastrophic effects of stress, all cell types also respond to stress by inducing protective pathways. Within the cell, the endoplasmic reticulum (ER) is exquisitely stress-sensitive, primarily because this organelle folds, posttranslationally processes, and sorts one-third of the proteome. In the 1990s, a specialized ER stress response pathway was discovered, the unfolded protein response (UPR), which specifically protects the ER from damaged proteins and toxic chemicals. Not surprisingly, UPR-dependent responses are essential to maintain the function and viability of cells continuously exposed to stress, such as those in the kidney, which have high metabolic demands, produce myriad protein assemblies, continuously filter toxins, and synthesize ammonia. In this mini-review, we highlight recent articles that link ER stress and the UPR with acute kidney injury (AKI), a disease that arises in ∼10% of all hospitalized individuals and nearly half of all people admitted to intensive care units. We conclude with a discussion of prospects for treating AKI with emerging drugs that improve ER function.
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Affiliation(s)
- Aidan W Porter
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Pediatrics, Nephrology Division, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jeffrey L Brodsky
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Teresa M Buck
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania
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Ahmad F, Lakshmi PTV, Arunachalam A. An in silico comparative study of curcumin and 2-deoxyuridine nucleoside derivatives: Reveals the role of angiogenin in ER stress-induced apoptosis signaling. Chem Biol Drug Des 2022; 101:1048-1081. [PMID: 36412086 DOI: 10.1111/cbdd.14184] [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: 10/31/2021] [Revised: 09/06/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
Angiogenin (ANG) protein plays a crucial role in angiogenesis, neovascularization, and cancer metastasis in NSCLC (non-small cell lung cancer) via non-coding tiRNA. It protects the cell under ER (endoplasmic reticulum) stress-induced apoptosis through the translational reprogramming process. Although B82 (Curcumin derivatives) induces ER stress-induced apoptosis, its mechanism of action was not studied. Therefore, it was hypothesized that the ribonucleolytic activity of ANG may be regulated by B82, resulting in modulated ER stress signaling for apoptosis. Hence, we designed and proposed a synthesis scheme for RNA-based anti-angiogenic derivatives of 2-deoxyuridine nucleoside forming peptide bond with amino acids like serine (Ser-3) and para-hydroxy-phenyl glycine (Normtyr-1) and compared B82 with them to know the binding affinity with ANG, anti-angiogenic potential, and its probable mechanism of anti-RNase activity through MD simulation study. Therefore, using Gromos96 43a1 and 43a2 force fields, MD simulation was performed to investigate binding affinity, ligand-induced molecular surface area change, conformational change, and dynamics of catalytic site residues to predict ligand binding to ANG in this study. The obtained binding free energy (∆Gbind ) result showed the total average ∆Gbind as -113.480 ± 1.682 (Normtyr-1) > -53.038 ± 33.069 (B82) > -27.909 ± 16.438 (Ser-3) kJ/mole specify role of B82 in regulating ER stress signaling induced apoptosis through ANG ribonucleolytic activity inhibition, suitability of 43a2 force fields and methodology in ligand screening. It shows the crucial role of Leu115 and His13 residue involvement in total ∆Gbind contribution. Hence, based on the MD result, novel conformation of catalytic residues, and ∆Gbind , a promising combination candidate could be proposed for metastatic NSCLC therapy.
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Affiliation(s)
- Faizan Ahmad
- Department of Bioinformatics, Pondicherry University, Pondicherry, India
| | | | - Annamalai Arunachalam
- PG and Research Department of Botany Arignar Anna Government Arts College Villupuram Tamil Nadu India
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10
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Zhang Y, Zhao J, Qin Y, Wang Y, Yu Z, Ning X, Sun S. Specific alterations of gut microbiota in patients with membranous nephropathy: A systematic review and meta-analysis. Front Physiol 2022; 13:909491. [PMID: 36388089 PMCID: PMC9664147 DOI: 10.3389/fphys.2022.909491] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 10/03/2022] [Indexed: 02/12/2024] Open
Abstract
Background: The pathogenesis of idiopathic membranous nephropathy (IMN) has not yet been thoroughly clarified, and gut dysbiosis may be a contributor to IMN. However, the characterization of gut microbiota in patients with IMN remains uncertain. Methods: Cochrane Library, PubMed, China National Knowledge Internet, Web of Science, and Embase were used to search for studies through 18 May 2022. A meta-analysis based on the standardized mean difference (SMD) with 95% confidence interval (CI) was conducted on the alpha diversity index. The between-group comparison of the relative abundance of gut microbiota taxa and the beta diversity were extracted and qualitatively analyzed. Results: Five studies were included involving 290 patients with IMN, 100 healthy controls (HCs), and 129 patients with diabetic kidney disease (DKD). The quantitative combination of alpha diversity indices indicated that although bacterial richness was impaired [ACE, SMD = 0.12, (-0.28, 0.52), p = 0.55, I 2 = 0%; Chao1, SMD = -0.34, (-0.62, -0.06), p < 0.05, I 2 = 36%], overall diversity was preserved [Shannon, SMD = -0.16, (-0.64, 0.31), p = 0.50, I 2 = 53%; Simpson, SMD = 0.27, (-0.08, 0.61), p = 0.13, I 2 = 0%]. The beta diversity was significantly varied compared to HCs or DKD patients. Compared to HCs, the abundance of Proteobacteria increased, while that of Firmicutes decreased at the phylum level. Furthermore, the abundance of Lachnospira were depleted, while those of Streptococcus were enriched at the genus level. Proteobacteria and Streptococcus were also increased compared to DKD patients. Conclusions: The expansion of Proteobacteria and depletion of Lachnospira may be critical features of the altered gut microbiota in patients with IMN. This condition may play an important role in the pathogenesis of IMN and could provide bacterial targets for diagnosis and therapy.
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Affiliation(s)
- Yumeng Zhang
- Department of Postgraduate Student, Xi’an Medical University, Xi’an, China
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Jin Zhao
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Yunlong Qin
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
- Department of Nephrology, 980th Hospital of People’s Liberation Army Joint Logistic Support Force (Bethune International Peace Hospital), Shijiazhuang, Hebei, China
| | - Yuwei Wang
- Department of Postgraduate Student, Xi’an Medical University, Xi’an, China
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Zixian Yu
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Xiaoxuan Ning
- Department of Geriatric, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
| | - Shiren Sun
- Department of Nephrology, Xijing Hospital, Fourth Military Medical University, Xi’an, Shaanxi, China
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Siskind S, Zhang F, Brenner M, Wang P. Extracellular CIRP induces acute kidney injury via endothelial TREM-1. Front Physiol 2022; 13:954815. [PMID: 36246143 PMCID: PMC9558214 DOI: 10.3389/fphys.2022.954815] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/12/2022] [Indexed: 11/20/2022] Open
Abstract
Introduction: Acute kidney injury is associated with elevated serum levels of extracellular cold-inducible RNA-binding protein (eCIRP), a damage-associated molecular pattern released during ischemia/reperfusion injury, hemorrhagic shock, and sepsis. It is unknown if circulating eCIRP and eCIRP-induced activation of receptor triggering receptor expressed on myeloid cells-1 (TREM-1), expressed on endothelial cells, play an important role in the pathogenesis of AKI. Methods: Male B6 wild-type (WT) and TREM-1−/− mice were subjected to intravenous injection of recombinant murine (rm) CIRP. Serum, urine, and renal tissue were collected 6 h later for analysis. Additionally, primary human renal glomerular endothelial cells (HRGEC) were stimulated in vitro with rmCIRP after pretreatment with M3, a novel inhibitory peptide of TREM-1, or vehicle. Supernatants and cells were collected 20 h after stimulation. Results: After injection with rmCIRP, WT mice had a significant increase in serum levels of BUN, creatinine, and NGAL compared to control. Additionally, NGAL was significantly increased in the urine of rmCIRP-injected mice, suggesting that circulating eCIRP can directly induce AKI. The levels of TREM-1 mRNA in the kidneys, as well as soluble (s) TREM-1 released into the serum and urine, were significantly increased in rmCIRP-injected mice. TREM-1−/− mice injected with rmCIRP had attenuated AKI, indicated by significantly decreased serum BUN, creatinine, and NGAL, and renal mRNA expression of NGAL and KIM-1 compared to WT mice. TREM-1−/− mice also had attenuated endothelial activation, with decreased mRNA and protein expression of ICAM-1 in renal tissue. HRGEC stimulated with rmCIRP in vitro had significant increases in cytokine production and sTREM-1 release, which was attenuated in cells treated with M3. Conclusion: Activation of renal TREM-1 with circulating eCIRP is sufficient to cause AKI. Elevated levels of eCIRP may be critical for the development of AKI under conditions such as ischemia/reperfusion injury, hemorrhagic shock, and sepsis. Mice deficient in the TREM-1 receptor have attenuated AKI and reduced endothelial cell activation after injection of rmCIRP. TREM-1 inhibition with M3 attenuates HRGEC activation after eCIRP stimulation. Targeting eCIRP activation of TREM-1 may provide a novel and effective treatment for AKI.
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Affiliation(s)
- Sara Siskind
- Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Elmezzi Graduate School of Medicine, Manhasset, NY, United States
| | - Fangming Zhang
- Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
| | - Max Brenner
- Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Elmezzi Graduate School of Medicine, Manhasset, NY, United States
- *Correspondence: Ping Wang, ; Max Brenner,
| | - Ping Wang
- Department of Surgery, Zucker School of Medicine at Hofstra/Northwell, Manhasset, NY, United States
- Center for Immunology and Inflammation, The Feinstein Institutes for Medical Research, Manhasset, NY, United States
- Elmezzi Graduate School of Medicine, Manhasset, NY, United States
- *Correspondence: Ping Wang, ; Max Brenner,
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12
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Sturmlechner I, Sine CC, Jeganathan KB, Zhang C, Fierro Velasco RO, Baker DJ, Li H, van Deursen JM. Senescent cells limit p53 activity via multiple mechanisms to remain viable. Nat Commun 2022; 13:3722. [PMID: 35764649 PMCID: PMC9240076 DOI: 10.1038/s41467-022-31239-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Accepted: 06/09/2022] [Indexed: 11/21/2022] Open
Abstract
Super-enhancers regulate genes with important functions in processes that are cell type-specific or define cell identity. Mouse embryonic fibroblasts establish 40 senescence-associated super-enhancers regardless of how they become senescent, with 50 activated genes located in the vicinity of these enhancers. Here we show, through gene knockdown and analysis of three core biological properties of senescent cells that a relatively large number of senescence-associated super-enhancer-regulated genes promote survival of senescent mouse embryonic fibroblasts. Of these, Mdm2, Rnase4, and Ang act by suppressing p53-mediated apoptosis through various mechanisms that are also engaged in response to DNA damage. MDM2 and RNASE4 transcription is also elevated in human senescent fibroblasts to restrain p53 and promote survival. These insights identify key survival mechanisms of senescent cells and provide molecular entry points for the development of targeted therapeutics that eliminate senescent cells at sites of pathology.
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Affiliation(s)
- Ines Sturmlechner
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
- Department of Pediatrics, Molecular Genetics Section, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Chance C Sine
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
| | - Karthik B Jeganathan
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
| | - Cheng Zhang
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, USA
| | | | - Darren J Baker
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Hu Li
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN, USA
| | - Jan M van Deursen
- Department of Pediatric and Adolescent Medicine, Mayo Clinic, Rochester, MN, USA.
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA.
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13
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Stage II of Chronic Kidney Disease—A Tipping Point in Disease Progression? Biomedicines 2022; 10:biomedicines10071522. [PMID: 35884827 PMCID: PMC9313233 DOI: 10.3390/biomedicines10071522] [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: 06/01/2022] [Revised: 06/20/2022] [Accepted: 06/25/2022] [Indexed: 11/17/2022] Open
Abstract
Chronic kidney disease (CKD) is the progressive loss of renal function. Although advances have been made in understanding the progression of CKD, key molecular events in complex pathophysiological mechanisms that mark each stage of renal failure remain largely unknown. Changes in plasma protein profiles in different disease stages are important for identification of early diagnostic markers and potential therapeutic targets. The goal of this study was to determine the molecular profile of each CKD stage (from 1 to 5), aiming to specifically point out markedly expressed or downregulated proteins. We performed a cross-sectional shotgun-proteomic study of pooled plasma across CKD stages and compared them to healthy controls. After sample pooling and heparin-column purification we analysed proteomes from healthy to CKD stage 1 through 5 participants’ plasma by liquid-chromatography/mass-spectrometry. We identified 453 proteins across all study groups. Our results indicate that key events, which may later affect the course of disease progression and the overall pathophysiological background, are most pronounced in CKD stage 2, with an emphasis on inflammation, lipoprotein metabolism, angiogenesis and tissue regeneration. We hypothesize that CKD stage 2 is the tipping point in disease progression and a suitable point in disease course for the development of therapeutic solutions.
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14
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Li Z, Liu Z, Luo M, Li X, Chen H, Gong S, Zhang M, Zhang Y, Liu H, Li X. The pathological role of damaged organelles in renal tubular epithelial cells in the progression of acute kidney injury. Cell Death Dis 2022; 8:239. [PMID: 35501332 PMCID: PMC9061711 DOI: 10.1038/s41420-022-01034-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 04/13/2022] [Accepted: 04/14/2022] [Indexed: 12/14/2022]
Abstract
Acute kidney injury (AKI) is a common clinical condition associated with high morbidity and mortality. The pathogenesis of AKI has not been fully elucidated, with a lack of effective treatment. Renal tubular epithelial cells (TECs) play an important role in AKI, and their damage and repair largely determine the progression and prognosis of AKI. In recent decades, it has been found that the mitochondria, endoplasmic reticulum (ER), lysosomes, and other organelles in TECs are damaged to varying degrees in AKI, and that they can influence each other through various signaling mechanisms that affect the recovery of TECs. However, the association between these multifaceted signaling platforms, particularly between mitochondria and lysosomes during AKI remains unclear. This review summarizes the specific pathophysiological mechanisms of the main TECs organelles in the context of AKI, particularly the potential interactions among them, in order to provide insights into possible novel treatment strategies.
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Affiliation(s)
- Zixian Li
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Zejian Liu
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Mianna Luo
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Xingyu Li
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Huixia Chen
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Siqiao Gong
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Minjie Zhang
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Yaozhi Zhang
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China
| | - Huafeng Liu
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China.
| | - Xiaoyu Li
- Institute of Nephrology, and Guangdong Provincial Key Laboratory of Autophagy and Major Chronic Non-communicable Diseases, Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524001, China.
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15
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Su E, Yu P, Zhang B, Zhang A, Xie S, Zhang C, Li S, Zou Y, Liu M, Jiang H, Ge J. Endothelial Intracellular ANG (Angiogenin) Protects Against Atherosclerosis by Decreasing Endoplasmic Reticulum Stress. Arterioscler Thromb Vasc Biol 2022; 42:305-325. [PMID: 35045729 DOI: 10.1161/atvbaha.121.317339] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
BACKGROUND ANG (angiogenin) is essential for cellular adaptation to endoplasmic reticulum (ER) stress, a process closely associated with cardiovascular diseases, including atherosclerosis. We aimed to investigate the role of ANG in the progression of atherosclerosis and elucidate its underlying molecular mechanisms. METHODS We constructed adenoassociated virus 9 ANG overexpression vectors and endothelial ANG- and ApoE (apolipoprotein E)-deficient mice to determine the effects of ANG on ER stress and atherosclerotic lesions. RNA sequencing of endothelial ANG- and ApoE-deficient mice identified ANG-dependent downregulation of ST3GAL5 (ST3 beta-galactoside alpha-2,3-sialyltransferase 5) expression, and the direct regulation of ST3GAL5 by ANG was verified by chromatin immunoprecipitation sequencing and luciferase reporter assay results. RESULTS Reanalysis of expression profiling datasets indicated decreased ANG levels in patients' atherosclerotic lesions, and these data were validated in aortas from ApoE-/- mice. ER stress marker and adhesion molecule levels, aortic root lesions and macrophage deposition were substantially reduced in ApoE-/- mice injected with an adenoassociated virus 9 ANG without signal peptide (ANG-ΔSP) overexpression vector compared with empty and full-length ANG overexpression vectors. Endothelial ANG deficiency significantly elevated ER stress and increased adhesion molecule expression, which aggravated atherosclerotic lesions and enhanced THP-1 monocyte adhesion to endothelial cells in vivo and in vitro, respectively. Furthermore, ANG-ΔSP overexpression significantly attenuated oxidized low-density lipoprotein-induced ER stress and THP-1 monocyte adhesion to endothelial cells, which were reversed by ST3GAL5 inhibition. CONCLUSIONS These results suggest that endothelial intracellular ANG is a novel therapeutic against atherosclerosis and exerts atheroprotective effects via ST3GAL5-mediated ER stress suppression.
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Affiliation(s)
- Enyong Su
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Peng Yu
- Department of Endocrinology and Metabolism (P.Y.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Baoli Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Anjing Zhang
- Department of Neurorehabilitation Medicine, Kongjiang Branch, the First Rehabilitation Hospital of Shanghai, China (A.Z.)
| | - Shiyao Xie
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Chunyu Zhang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Su Li
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yunzeng Zou
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Ming Liu
- Department of Health Management Center (M.L.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hong Jiang
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
| | - Junbo Ge
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases (E.S., B.Z., S.X., C.Z., S.L., Y.Z., H.J., J.G.), Zhongshan Hospital, Fudan University, Shanghai, China
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16
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Jiang N, Huang R, Zhang J, Xu D, Li T, Sun Z, Su L, Peng Z. TIMP2 mediates endoplasmic reticulum stress contributing to sepsis-induced acute kidney injury. FASEB J 2022; 36:e22228. [PMID: 35218571 DOI: 10.1096/fj.202101555rr] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 01/31/2022] [Accepted: 02/11/2022] [Indexed: 12/29/2022]
Abstract
Tissue inhibitor of metalloproteinase 2 (TIMP2) has been recognized as an important biomarker for predicting acute kidney injury (AKI) because of its involvement in the process of inflammation and apoptosis in septic AKI. Endoplasmic reticulum (ER) stress, a condition of disrupted ER homeostasis, is implicated in multiple pathophysiological processes, including kidney disease. Herein, we investigated the correlation between ER stress and septic AKI and further explored how TIMP2 regulated ER stress-mediated apoptosis. To assess the role of TIMP2 in sepsis-induced AKI, we used a cecal ligation and puncture (CLP) model in mice with tubule-specific deficiency of TIMP2 (Ksp-Cre/TIMP2flox / flox ) and their wild-type counterparts. Compared to the wild-type mice, TIMP2-deficient mice demonstrated lower serum creatinine levels and decreased ER stress-mediated apoptosis when subjected to CLP. Interestingly, in human kidney (HK-2) cells, overexpression of TIMP2 caused ER stress, whereas TIMP2 knockdown attenuated lipopolysaccharide-induced ER stress and apoptosis. TIMP2 interacted with the binding immunoglobulin protein, an ER chaperone, and facilitates its extracellular secretion, thereby triggering ER stress. This study identified that the deletion of TIMP2 in mouse tubules mitigated sepsis-induced AKI by inhibiting ER stress-mediated apoptosis, which might be a potential therapeutic strategy to alleviate renal injury.
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Affiliation(s)
- Nanhui Jiang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Rong Huang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jiahao Zhang
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Dongxue Xu
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Tianlong Li
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhongyi Sun
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Lianjiu Su
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Zhiyong Peng
- Department of Critical Care Medicine, Zhongnan Hospital of Wuhan University, Wuhan, China.,Department of Critical Care Medicine, Center of Critical Nephrology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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17
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Chen N, Song S, Yang Z, Wu M, Mu L, Zhou T, Shi Y. ChREBP deficiency alleviates apoptosis by inhibiting TXNIP/oxidative stress in diabetic nephropathy. J Diabetes Complications 2021; 35:108050. [PMID: 34600826 DOI: 10.1016/j.jdiacomp.2021.108050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/22/2021] [Accepted: 09/20/2021] [Indexed: 11/17/2022]
Abstract
AIMS In the present study, we investigated the effect of carbohydrate responsive element binding protein (ChREBP) on the TXNIP/oxidative stress and apoptosis in diabetic nephropathy. METHODS ChREBP-/- mice (8-week old) were produced using the CRISPR/Cas9 gene editing approach. Diabetes was induced in C57BL/6 mice with streptozotocin. HK-2 cells was transfected with plasmid containing either ChREBP shRNA or TXNIP siRNA. RESULTS Renal expression of ChREBP and thioredoxin-interacting protein (TXNIP) was increased in patients with type 2 diabetes mellitus (T2DM) and diabetic mice. ChREBP deficiency improved renal function, apoptosis as well as endoplasmic reticulum (ER) stress in diabetic mice. In addition, ChREBP deficiency prevented expression levels of TXNIP and NADPH oxidase 4 (Nox4), 8-hydroxydeoxyguanosine (8-OHdG) and heme oxygenase-1 (HO-1) in diabetic kidneys. The increased urinary 8-OHdG level induced by diabetes was also attenuated in ChREBP deficiency mice. Similarly, HG was shown to induce ChREBP expression and nuclear translocation in HK-2 cells. HG-induced apoptosis was inhibited by transfection of ChREBP shRNA plasmid. Moreover, we found that knockdown of ChREBP suppressed HG-induced TXNIP and Nox4 expression, reactive oxygen species (ROS) generation and ER stress in HK-2 cells. Furthermore, TXNIP knockdown effectively abrogated HG-induced apoptosis in HK-2 cells. CONCLUSIONS These results suggest that ChREBP deficiency prevents diabetes-induced apoptosis via inhibiting oxidative stress and ER stress, highlighting ChREBP as a potential therapy target for diabetic nephropathy.
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Affiliation(s)
- Nan Chen
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Department of Pathology, Medical School, Hebei University of Engineering, Handan, China
| | - Shan Song
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Hebei Key Laboratory of Kidney Disease, Shijiazhuang, China
| | - Zhifen Yang
- Department of Pathology, Hebei Medical University, Shijiazhuang, China.
| | - Ming Wu
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Lin Mu
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Hebei Key Laboratory of Kidney Disease, Shijiazhuang, China; Department of Nephrology, Second Hospital, Hebei Medical University, Shijiazhuang, China
| | - Tengxiao Zhou
- Department of Pathology, Hebei Medical University, Shijiazhuang, China
| | - Yonghong Shi
- Department of Pathology, Hebei Medical University, Shijiazhuang, China; Hebei Key Laboratory of Kidney Disease, Shijiazhuang, China.
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18
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Chen JH, Wu CH, Chiang CK. Therapeutic Approaches Targeting Proteostasis in Kidney Disease and Fibrosis. Int J Mol Sci 2021; 22:ijms22168674. [PMID: 34445377 PMCID: PMC8395452 DOI: 10.3390/ijms22168674] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/09/2021] [Accepted: 08/10/2021] [Indexed: 12/12/2022] Open
Abstract
Pathological insults usually disturb the folding capacity of cellular proteins and lead to the accumulation of misfolded proteins in the endoplasmic reticulum (ER), which leads to so-called “ER stress”. Increasing evidence indicates that ER stress acts as a trigger factor for the development and progression of many kidney diseases. The unfolded protein responses (UPRs), a set of molecular signals that resume proteostasis under ER stress, are thought to restore the adaptive process in chronic kidney disease (CKD) and renal fibrosis. Furthermore, the idea of targeting UPRs for CKD treatment has been well discussed in the past decade. This review summarizes the up-to-date literature regarding studies on the relationship between the UPRs, systemic fibrosis, and renal diseases. We also address the potential therapeutic possibilities of renal diseases based on the modulation of UPRs and ER proteostasis. Finally, we list some of the current UPR modulators and their therapeutic potentials.
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Affiliation(s)
- Jia-Huang Chen
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100233, Taiwan; (J.-H.C.); (C.-H.W.)
| | - Chia-Hsien Wu
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100233, Taiwan; (J.-H.C.); (C.-H.W.)
- Department of Physiology of Visceral Function and Body Fluid, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki 852-8523, Japan
| | - Chih-Kang Chiang
- Graduate Institute of Toxicology, College of Medicine, National Taiwan University, Taipei 100233, Taiwan; (J.-H.C.); (C.-H.W.)
- Department of Integrated Diagnostics & Therapeutics, National Taiwan University Hospital, Taipei 100225, Taiwan
- Center for Biotechnology, National Taiwan University, Taipei 10672, Taiwan
- Correspondence: ; Tel.: +886-2-2312-3456 (ext. 88347)
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Abstract
tRNA-derived small RNA (tsRNA) is a novel class of non-coding RNA that is usually produced from tRNA following endonuclease cleavage which occurs under stress conditions. There are two types of tsRNAs: tRNA-derived fragments (tRFs) and stress-induced tRNA halves (tiRNAs), which differ in their cleavage position. Many studies have demonstrated that tsRNAs are involved in various physiological and pathological processes apart from cancer and gene expression. In this review, we briefly described the biogenesis, classification, and characteristics of tsRNAs and summarized the current research progress of tsRNAs in metabolic diseases, senescence, reproduction, stress, and organ injury, and finally put forward some problems to be solved.
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Affiliation(s)
- Qiyu Pan
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, NationalCenter of Gerontology, National Health Commission; Institute of Geriatric Medicine, ChineseAcademy of Medical Sciences, Beijing 100730, P. R. China
| | - Tingting Han
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, NationalCenter of Gerontology, National Health Commission; Institute of Geriatric Medicine, ChineseAcademy of Medical Sciences, Beijing 100730, P. R. China
| | - Guoping Li
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Beijing Hospital, NationalCenter of Gerontology, National Health Commission; Institute of Geriatric Medicine, ChineseAcademy of Medical Sciences, Beijing 100730, P. R. China
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20
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Yue T, Zhan X, Zhang D, Jain R, Wang KW, Choi JH, Misawa T, Su L, Quan J, Hildebrand S, Xu D, Li X, Turer E, Sun L, Moresco EMY, Beutler B. SLFN2 protection of tRNAs from stress-induced cleavage is essential for T cell-mediated immunity. Science 2021; 372:372/6543/eaba4220. [PMID: 33986151 PMCID: PMC8442736 DOI: 10.1126/science.aba4220] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/02/2020] [Accepted: 03/25/2021] [Indexed: 01/05/2023]
Abstract
Reactive oxygen species (ROS) increase in activated T cells because of metabolic activity induced to support T cell proliferation and differentiation. We show that these ROS trigger an oxidative stress response that leads to translation repression. This response is countered by Schlafen 2 (SLFN2), which directly binds transfer RNAs (tRNAs) to protect them from cleavage by the ribonuclease angiogenin. T cell-specific SLFN2 deficiency results in the accumulation of tRNA fragments, which inhibit translation and promote stress-granule formation. Interleukin-2 receptor β (IL-2Rβ) and IL-2Rγ fail to be translationally up-regulated after T cell receptor stimulation, rendering SLFN2-deficient T cells insensitive to interleukin-2's mitogenic effects. SLFN2 confers resistance against the ROS-mediated translation-inhibitory effects of oxidative stress normally induced by T cell activation, permitting the robust protein synthesis necessary for T cell expansion and immunity.
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Affiliation(s)
- Tao Yue
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiaoming Zhan
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Duanwu Zhang
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ruchi Jain
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Kuan-wen Wang
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jin Huk Choi
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Takuma Misawa
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lijing Su
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Jiexia Quan
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Sara Hildebrand
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Darui Xu
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiaohong Li
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Emre Turer
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Department of Internal Medicine, Division of Gastroenterology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Lei Sun
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Eva Marie Y. Moresco
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Bruce Beutler
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.,Correspondence to:
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Li C, Chen YM. Endoplasmic Reticulum-Associated Biomarkers for Molecular Phenotyping of Rare Kidney Disease. Int J Mol Sci 2021; 22:2161. [PMID: 33671535 PMCID: PMC7926397 DOI: 10.3390/ijms22042161] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 01/31/2021] [Accepted: 02/02/2021] [Indexed: 12/20/2022] Open
Abstract
The endoplasmic reticulum (ER) is the central site for folding, post-translational modifications, and transport of secretory and membrane proteins. An imbalance between the load of misfolded proteins and the folding capacity of the ER causes ER stress and an unfolded protein response. Emerging evidence has shown that ER stress or the derangement of ER proteostasis contributes to the development and progression of a variety of glomerular and tubular diseases. This review gives a comprehensive summary of studies that have elucidated the role of the three ER stress signaling pathways, including inositol-requiring enzyme 1 (IRE1), protein kinase R-like ER kinase (PERK), and activating transcription factor 6 (ATF6) signaling in the pathogenesis of kidney disease. In addition, we highlight the recent discovery of ER-associated biomarkers, including MANF, ERdj3, ERdj4, CRELD2, PDIA3, and angiogenin. The implementation of these novel biomarkers may accelerate early diagnosis and therapeutic intervention in rare kidney disease.
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Affiliation(s)
| | - Ying Maggie Chen
- Division of Nephrology, Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA;
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22
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The cellular prion protein is a stress protein secreted by renal tubular cells and a urinary marker of kidney injury. Cell Death Dis 2020; 11:243. [PMID: 32303684 PMCID: PMC7165184 DOI: 10.1038/s41419-020-2430-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 03/19/2020] [Accepted: 03/19/2020] [Indexed: 02/07/2023]
Abstract
Endoplasmic Reticulum (ER) stress underlies the pathogenesis of numerous kidney diseases. A better care of patients with kidney disease involves the identification and validation of ER stress biomarkers in the early stages of kidney disease. For the first time to our knowledge, we demonstrate that the prion protein PrPC is secreted in a conventional manner by ER-stressed renal epithelial cell under the control of the transcription factor x-box binding protein 1 (XBP1) and can serve as a sensitive urinary biomarker for detecting tubular ER stress. Urinary PrPC elevation occurs in patients with chronic kidney disease. In addition, in patients undergoing cardiac surgery, detectable urine levels of PrPC significantly increase after cardiopulmonary bypass, a condition associated with activation of the IRE1-XBP1 pathway in the kidney. In conclusion, our study has identified PrPC as a novel urinary ER stress biomarker with potential utility in early diagnosis of ongoing acute or chronic kidney injury.
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23
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Tang Z, Song B, Zhang W, Guo L, Yuan J. Precise Monitoring of Drug-Induced Kidney Injury Using an Endoplasmic Reticulum-Targetable Ratiometric Time-Gated Luminescence Probe for Superoxide Anions. Anal Chem 2019; 91:14019-14028. [DOI: 10.1021/acs.analchem.9b03602] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Zhixin Tang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Bo Song
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Wenzhu Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
| | - Lianying Guo
- Department of Pathophysiology, Dalian Medical University, Dalian, Liaoning 116044, P. R. China
| | - Jingli Yuan
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China
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Almanza A, Carlesso A, Chintha C, Creedican S, Doultsinos D, Leuzzi B, Luís A, McCarthy N, Montibeller L, More S, Papaioannou A, Püschel F, Sassano ML, Skoko J, Agostinis P, de Belleroche J, Eriksson LA, Fulda S, Gorman AM, Healy S, Kozlov A, Muñoz‐Pinedo C, Rehm M, Chevet E, Samali A. Endoplasmic reticulum stress signalling - from basic mechanisms to clinical applications. FEBS J 2019; 286:241-278. [PMID: 30027602 PMCID: PMC7379631 DOI: 10.1111/febs.14608] [Citation(s) in RCA: 534] [Impact Index Per Article: 106.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 06/24/2018] [Accepted: 07/18/2018] [Indexed: 02/06/2023]
Abstract
The endoplasmic reticulum (ER) is a membranous intracellular organelle and the first compartment of the secretory pathway. As such, the ER contributes to the production and folding of approximately one-third of cellular proteins, and is thus inextricably linked to the maintenance of cellular homeostasis and the fine balance between health and disease. Specific ER stress signalling pathways, collectively known as the unfolded protein response (UPR), are required for maintaining ER homeostasis. The UPR is triggered when ER protein folding capacity is overwhelmed by cellular demand and the UPR initially aims to restore ER homeostasis and normal cellular functions. However, if this fails, then the UPR triggers cell death. In this review, we provide a UPR signalling-centric view of ER functions, from the ER's discovery to the latest advancements in the understanding of ER and UPR biology. Our review provides a synthesis of intracellular ER signalling revolving around proteostasis and the UPR, its impact on other organelles and cellular behaviour, its multifaceted and dynamic response to stress and its role in physiology, before finally exploring the potential exploitation of this knowledge to tackle unresolved biological questions and address unmet biomedical needs. Thus, we provide an integrated and global view of existing literature on ER signalling pathways and their use for therapeutic purposes.
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Affiliation(s)
- Aitor Almanza
- Apoptosis Research CentreNational University of IrelandGalwayIreland
| | - Antonio Carlesso
- Department of Chemistry and Molecular BiologyUniversity of GothenburgGöteborgSweden
| | - Chetan Chintha
- Apoptosis Research CentreNational University of IrelandGalwayIreland
| | | | - Dimitrios Doultsinos
- INSERM U1242University of RennesFrance
- Centre de Lutte Contre le Cancer Eugène MarquisRennesFrance
| | - Brian Leuzzi
- Apoptosis Research CentreNational University of IrelandGalwayIreland
| | - Andreia Luís
- Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyAUVA Research CentreViennaAustria
| | - Nicole McCarthy
- Institute for Experimental Cancer Research in PaediatricsGoethe‐UniversityFrankfurtGermany
| | - Luigi Montibeller
- Neurogenetics GroupDivision of Brain SciencesFaculty of MedicineImperial College LondonUK
| | - Sanket More
- Department Cellular and Molecular MedicineLaboratory of Cell Death and TherapyKU LeuvenBelgium
| | - Alexandra Papaioannou
- INSERM U1242University of RennesFrance
- Centre de Lutte Contre le Cancer Eugène MarquisRennesFrance
| | - Franziska Püschel
- Cell Death Regulation GroupOncobell ProgramBellvitge Biomedical Research Institute (IDIBELL)BarcelonaSpain
| | - Maria Livia Sassano
- Department Cellular and Molecular MedicineLaboratory of Cell Death and TherapyKU LeuvenBelgium
| | - Josip Skoko
- Institute of Cell Biology and ImmunologyUniversity of StuttgartGermany
| | - Patrizia Agostinis
- Department Cellular and Molecular MedicineLaboratory of Cell Death and TherapyKU LeuvenBelgium
| | - Jackie de Belleroche
- Neurogenetics GroupDivision of Brain SciencesFaculty of MedicineImperial College LondonUK
| | - Leif A. Eriksson
- Department of Chemistry and Molecular BiologyUniversity of GothenburgGöteborgSweden
| | - Simone Fulda
- Institute for Experimental Cancer Research in PaediatricsGoethe‐UniversityFrankfurtGermany
| | | | - Sandra Healy
- Apoptosis Research CentreNational University of IrelandGalwayIreland
| | - Andrey Kozlov
- Ludwig Boltzmann Institute for Experimental and Clinical TraumatologyAUVA Research CentreViennaAustria
| | - Cristina Muñoz‐Pinedo
- Cell Death Regulation GroupOncobell ProgramBellvitge Biomedical Research Institute (IDIBELL)BarcelonaSpain
| | - Markus Rehm
- Institute of Cell Biology and ImmunologyUniversity of StuttgartGermany
| | - Eric Chevet
- INSERM U1242University of RennesFrance
- Centre de Lutte Contre le Cancer Eugène MarquisRennesFrance
| | - Afshin Samali
- Apoptosis Research CentreNational University of IrelandGalwayIreland
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25
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Moon LDF. Chromatolysis: Do injured axons regenerate poorly when ribonucleases attack rough endoplasmic reticulum, ribosomes and RNA? Dev Neurobiol 2018; 78:1011-1024. [PMID: 30027624 PMCID: PMC6334169 DOI: 10.1002/dneu.22625] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/31/2018] [Accepted: 06/04/2018] [Indexed: 02/06/2023]
Abstract
After axonal injury, chromatolysis (fragmentation of Nissl substance) can occur in the soma. Electron microscopy shows that chromatolysis involves fission of the rough endoplasmic reticulum. In CNS neurons (which do not regenerate axons back to their original targets) or in motor neurons or dorsal root ganglion neurons denied axon regeneration (e.g., by transection and ligation), chromatolysis is often accompanied by degranulation (loss of ribosomes from rough endoplasmic reticulum), disaggregation of polyribosomes and degradation of monoribosomes into dust‐like particles. Ribosomes and rough endoplasmic reticulum may also be degraded in autophagic vacuoles by ribophagy and reticulophagy, respectively. In other words, chromatolysis is disruption of parts of the protein synthesis infrastructure. Whereas some neurons may show transient or no chromatolysis, severely injured neurons can remain chromatolytic and never again synthesize normal levels of protein; some may atrophy or die. Ribonuclease(s) might cause the following features of chromatolysis: fragmentation and degranulation of rough endoplasmic reticulum, disaggregation of polyribosomes and degradation of monoribosomes. For example, ribonucleases in the EndoU/PP11 family can modify rough endoplasmic reticulum; many ribonucleases can degrade mRNA causing polyribosomes to unchain and disperse, and they can disassemble monoribosomes; Ribonuclease 5 can control rRNA synthesis and degrade tRNA; Ribonuclease T2 can degrade ribosomes, endoplasmic reticulum and RNA within autophagic vacuoles; and Ribonuclease IRE1α acts as a stress sensor within the endoplasmic reticulum. Regeneration might be improved after axonal injury by protecting the protein synthesis machinery from catabolism; targeting ribonucleases using inhibitors can enhance neurite outgrowth and could be a profitable strategy in vivo. © 2018 Wiley Periodicals, Inc. Develop Neurobiol, 2018
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Affiliation(s)
- Lawrence David Falcon Moon
- Neurorestoration Group, Wolfson Centre for Age-Related Diseases, 16-20 Newcomen Street, London, SE1 1UL, United Kingdom
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26
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Gallazzini M, Pallet N. Endoplasmic reticulum stress and kidney dysfunction. Biol Cell 2018; 110:205-216. [DOI: 10.1111/boc.201800019] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 06/14/2018] [Accepted: 06/28/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Morgan Gallazzini
- INSERM U1151 - CNRS UMR 8253; Institut Necker Enfants Malades; Paris France
- INSERM U1147; Centre Universitaire des Saints Pères; Paris France
| | - Nicolas Pallet
- INSERM U1151 - CNRS UMR 8253; Institut Necker Enfants Malades; Paris France
- INSERM U1147; Centre Universitaire des Saints Pères; Paris France
- Université Paris Descartes; Paris France
- Service de Néphrologie; Hôpital Européen Georges Pompidou; Paris
- Service de Biochimie; Hôpital Européen Gorges Pompidou; Paris France
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27
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Cellular and molecular mechanisms of kidney fibrosis. Mol Aspects Med 2018; 65:16-36. [PMID: 29909119 DOI: 10.1016/j.mam.2018.06.002] [Citation(s) in RCA: 273] [Impact Index Per Article: 45.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 06/12/2018] [Indexed: 12/14/2022]
Abstract
Renal fibrosis is the final pathological process common to any ongoing, chronic kidney injury or maladaptive repair. It is considered as the underlying pathological process of chronic kidney disease (CKD), which affects more than 10% of world population and for which treatment options are limited. Renal fibrosis is defined by excessive deposition of extracellular matrix, which disrupts and replaces the functional parenchyma that leads to organ failure. Kidney's histological structure can be divided into three main compartments, all of which can be affected by fibrosis, specifically termed glomerulosclerosis in glomeruli, interstitial fibrosis in tubulointerstitium and arteriosclerosis and perivascular fibrosis in vasculature. In this review, we summarized the different appearance, cellular origin and major emerging processes and mediators of fibrosis in each compartment. We also depicted and discussed the challenges in translation of anti-fibrotic treatment to clinical practice and discuss possible solutions and future directions.
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28
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Mami I, Pallet N. tRNA fragmentation and protein translation dynamics in the course of kidney injury. RNA Biol 2018; 15:1147-1156. [PMID: 26513712 DOI: 10.1080/15476286.2015.1107704] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
Abstract
Cells under stressful microenvironmental conditions initiate integrated molecular circuitries that aim at reducing general protein translation rates while redirecting protein synthesis toward a selective set of stress-response proteins. The consequence of the activation of this dynamic system is a reduction of the energy expenditure of the cell, and a metabolic rewiring that shapes adaptation under stress, which will, in fine, promote cell survival. In general, the translation initiation step is the prime target of translation reduction, with 2 molcular modules inhibiting translation initiation: the mechanistic target of Rapamycin complex 1, and the stress related kinases eIF2 kinases, which are all involved in the cellular responses to kidney injuries. tRNA (tRNA) dynamics and fragmentation have recently gained a considerable weight in the field of the non-coding RNA biology, and emerge as an important system for protein translation modulation under cellular stress. More precisely, stress-induced tRNA (tiRNA), the cleavage products of the ribonuclease angiogenin, are generated under various stress conditions, including oxidative stress and endoplasmic reticulum stress, and contribute to protein translation reprogramming in mammal cells. Current clinical and experimental evidence indicates that the angiogenin-tRNA fragmentation system is initiated under renal insults, and is involved in the tissue adaptation upon kidney injury. In addition, this system represents a potential source for minimally-invasive or non invasive biomarkers of early kidney injury. Besides RNA interference, tRNA fragments are likely involved in other fundamental cellular functions, including inflammation, and a better understanding of the molecular basis of tRNA functions will drive discoveries on the fundamental role of non coding RNA biology, as exemplified by microRNA, in the regulation of kidney homeostasis.
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Affiliation(s)
- Iadh Mami
- a INSERM U1147, Center Universitaire des Saints Pères , Paris , France.,b Université Paris Descartes , Paris , France
| | - Nicolas Pallet
- a INSERM U1147, Center Universitaire des Saints Pères , Paris , France.,b Université Paris Descartes , Paris , France.,c Service de Biochimie, Hôpital Européen Gorges Pompidou , Paris , France
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29
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Fohlen B, Tavernier Q, Huynh TM, Caradeuc C, Le Corre D, Bertho G, Cholley B, Pallet N. Real-Time and Non-invasive Monitoring of the Activation of the IRE1α-XBP1 Pathway in Individuals with Hemodynamic Impairment. EBioMedicine 2017; 27:284-292. [PMID: 29276149 PMCID: PMC5828547 DOI: 10.1016/j.ebiom.2017.12.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/07/2017] [Accepted: 12/19/2017] [Indexed: 02/06/2023] Open
Abstract
Many stressors that are encountered upon kidney injury are likely to trigger endoplasmic reticulum (ER) stress, subsequently activating transcriptional, translational and metabolic reprogramming. Monitoring early cellular adaptive responses engaged after hemodynamic impairment yields may represent a clinically relevant approach. However, a non-invasive method for detecting the ER stress response has not been developed. We combined a metabolomic approach with genetic marker analyses using urine from individuals undergoing scheduled cardiac surgery under cardiopulmonary bypass to investigate the feasibility and significance of monitoring the ER stress response in the kidney. We developed an original method based on fragment analysis that measures urinary levels of the spliced X-box binding protein 1 (sXBP1) mRNA as a proxy of inositol-requiring enzyme 1α (IRE1α) activity because sXBP1 is absolutely sensitive and specific for ER stress. The early engagement of the ER stress response after ischemic stress is critical for protecting against tissue damage, and individuals who mount a robust adaptive response are protected against AKI. The clinical consequences of our findings are of considerable importance because ER stress is involved in numerous conditions that lead to AKI and chronic kidney disease; in addition, the detection of ER stress is straightforward and immediately available in routine practice. Endoplasmic Reticulum (ER) stress is involved in the pathophysiology of numerous kidney diseases. We developed a method based on fragment analysis that measures urinary levels of XBP1 mRNA to detect renal ER stress. ER stress occurs early after cardiopulmonary bypass, a procedure leading to acute kidney injury. The detection of renal ER stress in this context can predict the occurrence of acute kidney injury.
The better care of patients with kidney disease requires the identification of biomarkers of ongoing tissue injury to provide therapies to slow disease progression. In this study, we have developed for the first time a non-invasive (urinary) biomarker of a protective cellular process called Endoplasmic Reticulum stress that occurs early in the kidney after ischemic injury. Renal ischemic injury follows cardiac surgery and could lead to acute kidney injury. Our results indicate that the early detection of individuals who do not activate Endoplasmic Reticulum stress could help to identify individuals who will develop acute kidney injury.
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Affiliation(s)
- Baptiste Fohlen
- Department d'Anésthésie et de Réanimation Cardiovasculaire, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris (APHP), Paris, France; Université Paris Descartes, Paris, France
| | - Quentin Tavernier
- Université Paris Descartes, Paris, France; Institut National de la Santé et la Recherche Médicale (INSERM) U1147, Paris, France
| | - Thi-Mum Huynh
- Department d'Anésthésie et de Réanimation Cardiovasculaire, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris (APHP), Paris, France; Université Paris Descartes, Paris, France
| | - Cédric Caradeuc
- Université Paris Descartes, Paris, France; Centre National pour le Recherche Scientifique (CNRS) U8601, Paris, France
| | - Delphine Le Corre
- Université Paris Descartes, Paris, France; Institut National de la Santé et la Recherche Médicale (INSERM) U1147, Paris, France
| | - Gildas Bertho
- Université Paris Descartes, Paris, France; Centre National pour le Recherche Scientifique (CNRS) U8601, Paris, France
| | - Bernard Cholley
- Department d'Anésthésie et de Réanimation Cardiovasculaire, Hôpital Européen Georges Pompidou, Paris, France; Assistance Publique-Hôpitaux de Paris (APHP), Paris, France; Université Paris Descartes, Paris, France
| | - Nicolas Pallet
- Assistance Publique-Hôpitaux de Paris (APHP), Paris, France; Université Paris Descartes, Paris, France; Institut National de la Santé et la Recherche Médicale (INSERM) U1147, Paris, France; Service de Néphrologie, Hôpital Européen Georges Pompidou, Paris, France; Service de Biochimie, Hôpital Européen Georges Pompidou, Paris, France.
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30
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Cybulsky AV. Endoplasmic reticulum stress, the unfolded protein response and autophagy in kidney diseases. Nat Rev Nephrol 2017; 13:681-696. [DOI: 10.1038/nrneph.2017.129] [Citation(s) in RCA: 244] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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A Comparative Study of the Predictive Values of Urinary Acute Kidney Injury Markers Angiogenin and Kidney Injury Molecule 1 for the Outcomes of Kidney Allografts. Transplant Direct 2017; 3:e204. [PMID: 28979926 PMCID: PMC5585420 DOI: 10.1097/txd.0000000000000720] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Accepted: 06/28/2017] [Indexed: 11/25/2022] Open
Abstract
Supplemental digital content is available in the text. Background Whether injury-related molecules in urines of individuals with ischemia-reperfusion injury (IRI) are independent predictors of graft outcomes and provide additional information compared with usual risk factors remains to be established. Methods We explored a cohort of 244 kidney transplant recipients who systematically had a urine collection 10 days after transplantation. The injury-related markers kidney injury molecule-1 (KIM-1) and angiogenin (ANG) levels in urines were measured. We determined the prognostic values of these markers on graft outcomes. Results Urinary KIM-1 and ANG concentrations were strongly correlated to each other and were significantly and independently associated with cold ischemia time, delayed graft function, and plasma creatinine 10 days after transplantation, indicating that these markers reflect the severity of IRI. However, urinary ANG and KIM-1 were not predictive of histological changes on protocol biopsies performed 3 and 12 months after transplantation. Finally, urinary ANG and urinary KIM-1 were not associated with graft survival. Conclusions Together, our results indicate that, in a cohort of 244 kidney transplant recipients, urinary ANG and KIM-1 levels in a single measurement 10 days after transplantation reflect the severity of IRI after kidney transplantation, but are neither independent predictors of renal function, histological changes and graft survival.
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32
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Differential processing of small RNAs during endoplasmic reticulum stress. Sci Rep 2017; 7:46080. [PMID: 28452371 PMCID: PMC5408347 DOI: 10.1038/srep46080] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 03/10/2017] [Indexed: 12/30/2022] Open
Abstract
The accumulation of misfolded proteins in the endoplasmic reticulum (ER) lumen due to the disruption of the homeostatic system of the ER leads to the induction of the ER stress response. Cellular stress-induced pathways globally transform genes expression on both the transcriptional and post-transcriptional levels with small RNA involvement as regulators of the stress response. The modulation of small RNA processing might represent an additional layer of a complex stress response program. However, it is poorly understood. Here, we studied changes in expression and small RNAs processing upon ER stress in Jurkat T-cells. Induced by ER-stress, depletion of miRNAs among small RNA composition was accompanied by a global decrease of 3′ mono-adenylated, mono-cytodinylated and a global increase of 3′ mono-uridinylated miRNA isoforms. We observed the specific subset of differentially expressed microRNAs, and also the dramatic induction of 32-nt tRNA fragments precisely phased to 5′ and 3′ ends of tRNA from a subset of tRNA isotypes. The induction of these tRNA fragments was linked to Angiogenin RNase, which mediates translation inhibition. Overall, the global perturbations of the expression and processing of miRNAs and tiRNAs were the most prominent features of small RNA transcriptome changes upon ER stress.
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33
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Fan Y, Xiao W, Lee K, Salem F, Wen J, He L, Zhang J, Fei Y, Cheng D, Bao H, Liu Y, Lin F, Jiang G, Guo Z, Wang N, He JC. Inhibition of Reticulon-1A-Mediated Endoplasmic Reticulum Stress in Early AKI Attenuates Renal Fibrosis Development. J Am Soc Nephrol 2017; 28:2007-2021. [PMID: 28137829 DOI: 10.1681/asn.2016091001] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2016] [Accepted: 12/14/2016] [Indexed: 12/12/2022] Open
Abstract
Several animal studies have shown an important role for endoplasmic reticulum (ER) stress in AKI, whereas human studies are lacking. We recently reported that Reticulon-1A (RTN1A) is a key mediator of ER stress and kidney cell injury. Here, we investigated whether modulation of RTN1A expression during AKI contributes to the progression to CKD. In a retrospective study of 51 patients with AKI, increased expression of RTN1A and other ER stress markers were associated with the severity of kidney injury and with progression to CKD. In an inducible tubular cell-specific RTN1A-knockdown mouse model subjected to folic acid nephropathy (FAN) or aristolochic acid nephropathy, reduction of RTN1A expression during the initial stage of AKI attenuated ER stress and kidney cell injury in early stages and renal fibrosis development in later stages. Treatment of wild-type mice with tauroursodeoxycholic acid, an inhibitor of ER stress, after the induction of kidney injury with FA facilitated renoprotection similar to that observed in RTN1A-knockdown mice. Conversely, in transgenic mice with inducible tubular cell-specific overexpression of RTN1A subjected to FAN, induction of RTN1A overexpression aggravated ER stress and renal injury at the early stage and renal fibrosis at the late stage of FAN. Together, our human and mouse data suggest that the RTN1A-mediated ER stress response may be an important determinant in the severity of AKI and maladaptive repair that may promote progression to CKD.
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Affiliation(s)
- Ying Fan
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Department of Medicine, Division of Nephrology, and
| | - Wenzhen Xiao
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China.,Department of Medicine, Division of Nephrology, and
| | - Kyung Lee
- Department of Medicine, Division of Nephrology, and
| | - Fadi Salem
- Department of Pathology, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Jiejun Wen
- 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
| | - Jing Zhang
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yang Fei
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Dongsheng Cheng
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Hongda Bao
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Yumei Liu
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Fujun Lin
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Xinhua Hospital, Shanghai, China
| | - Gengru Jiang
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Xinhua Hospital, Shanghai, China
| | - Zhiyong Guo
- Department of Nephrology, Second Military Medical University Affiliated Changhai Hospital, Shanghai, China; and
| | - Niansong Wang
- Department of Nephrology, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, China;
| | - John Cijiang He
- Department of Medicine, Division of Nephrology, and .,Renal Section, James J Peters VA Medical Center, Bronx, New York
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34
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Tavernier Q, Mami I, Rabant M, Karras A, Laurent-Puig P, Chevet E, Thervet E, Anglicheau D, Pallet N. Urinary Angiogenin Reflects the Magnitude of Kidney Injury at the Infrahistologic Level. J Am Soc Nephrol 2016; 28:678-690. [PMID: 27436854 DOI: 10.1681/asn.2016020218] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 06/07/2016] [Indexed: 12/26/2022] Open
Abstract
The ribonuclease angiogenin is a component of the mammalian stress response that is secreted by renal epithelial cells on activation of the inositol-requiring enzyme 1α (IRE1α)-active spliced X-box binding protein 1 (sXBP1) axis and instrumental to the adaptation to AKI associated with endoplasmic reticulum stress. To determine whether the amount of angiogenin in urine of individuals with a kidney injury reflects the magnitude of the lesions and provides information on the risk of organ failure, we examined individuals referred for a kidney injury and determined the biochemical characteristics of urinary angiogenin and its diagnostic and prognostic values. Urinary angiogenin did not correlate with the urinary concentrations of high molecular weight proteins and correlated only weakly with low molecular weight proteins, suggestive of tubular production. In a cohort of 242 kidney transplant recipients with acute allograft dysfunction, higher urinary angiogenin concentrations at the time of the biopsy associated with worse renal function and higher proteinuria but did not correlate with histologic lesions as defined in the Banff classification. Kidney transplant recipients with urinary angiogenin amounts in the highest 50% had a risk of graft failure 3.59 times as high (95% confidence interval, 1.12 to 15.94) as that of patients with amounts in the lowest 50%. Finally, the amount of urinary angiogenin reflected the activity of the IRE1α-XBP1 axis in allografts. Our approach identified urinary angiogenin as a noninvasive indicator of the extent of tissue damage, independent of the histologic lesions, and a risk predictor of kidney allograft failure.
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Affiliation(s)
- Quentin Tavernier
- Institut National de la Santé et la Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France.,Université Paris Descartes, Paris, France
| | - Iadh Mami
- Institut National de la Santé et la Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France.,Université Paris Descartes, Paris, France
| | - Marion Rabant
- Université Paris Descartes, Paris, France.,Service d'Anatomopathologie and
| | - Alexandre Karras
- Université Paris Descartes, Paris, France.,Service de Néphrologie and
| | - Pierre Laurent-Puig
- Institut National de la Santé et la Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France.,Université Paris Descartes, Paris, France.,Service de Biochimie, Hôpital Européen Georges Pompidou, Paris, France
| | - Eric Chevet
- Oncogenesis, Stress, Signaling Team, ER-440 Université de Rennes-1, Rennes, France; and
| | - Eric Thervet
- Université Paris Descartes, Paris, France.,Service de Néphrologie and
| | - Dany Anglicheau
- Université Paris Descartes, Paris, France.,Service de Néphrologie et Transplantation Rénale, Hopital Necker, Paris, France.,INSERM U1151, Institut Necker Enfants Malades, Paris, France
| | - Nicolas Pallet
- Institut National de la Santé et la Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; .,Université Paris Descartes, Paris, France.,Service de Biochimie, Hôpital Européen Georges Pompidou, Paris, France
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Mami I, Tavernier Q, Bouvier N, Aboukamis R, Desbuissons G, Rabant M, Poindessous V, Laurent-Puig P, Beaune P, Tharaux PL, Thervet E, Chevet E, Anglicheau D, Pallet N. A Novel Extrinsic Pathway for the Unfolded Protein Response in the Kidney. J Am Soc Nephrol 2016; 27:2670-83. [PMID: 26823555 DOI: 10.1681/asn.2015060703] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 11/30/2015] [Indexed: 12/11/2022] Open
Abstract
The ribonuclease angiogenin is a component of the mammalian stress response, and functions in both cell-autonomous and non-cell-autonomous ways to promote tissue adaptation to injury. We recently showed that angiogenin regulates tissue homeostasis during AKI associated with endoplasmic reticulum (ER) stress through the production of transfer RNA fragments that interfere with translation initiation and thereby alleviate ER stress. However, whether the paracrine signaling mediated by angiogenin secretion is a genuine component of the ER stress response to kidney injury is unknown. Here, we explored the molecular mechanisms by which angiogenin is secreted upon ER stress, and determined how it modulates the inflammatory microenvironment. In cultured renal epithelial cells, ER stress specifically induced angiogenin secretion under the selective control of inositol-requiring enzyme 1α, a key activator of the unfolded protein response. The transcription factors spliced X-box-binding protein 1 and p65, which are activated by inositol-requiring enzyme 1α upon ER stress, each bound the angiogenin promoter and controlled the amount of angiogenin secreted. Furthermore, p65 promoted angiogenin transcription in an ER stress-dependent manner. Similar to secretion of the ER stress-induced proinflammatory cytokine IL-6, secretion of angiogenin required the ER-Golgi pathway. Notably, incubation of human macrophages with angiogenin promoted macrophage reprogramming toward an activated and proinflammatory phenotype. In patients, angiogenin expression increased upon renal inflammation, and the urinary concentration of angiogenin correlated with the extent of immune-mediated kidney injury. Collectively, our data identify angiogenin as a mediator of the ER stress-dependent inflammatory response and as a potential noninvasive biomarker of AKI.
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Affiliation(s)
- Iadh Mami
- Institut National de la Santé et de le Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; Université Paris Descartes, Paris, France
| | - Quentin Tavernier
- Institut National de la Santé et de le Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; Université Paris Descartes, Paris, France
| | - Nicolas Bouvier
- Service de Néphrologie, Centre Hospitalier Unversitaire de Caen, Caen, France
| | - Rim Aboukamis
- Institut National de la Santé et de le Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; Université Paris Descartes, Paris, France
| | - Geoffroy Desbuissons
- Université Paris Descartes, Paris, France; Service de Néphrologie, INSERM U1151, Institut Necker Enfants Malades, Paris, France
| | - Marion Rabant
- Université Paris Descartes, Paris, France; Service d'Anatomopathologie, Hôpital Necker, Paris, France
| | - Virginie Poindessous
- Institut National de la Santé et de le Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; Université Paris Descartes, Paris, France
| | - Pierre Laurent-Puig
- Institut National de la Santé et de le Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; Université Paris Descartes, Paris, France; Service de Biochimie, Service de Néphrologie, Hôpital Européen Georges Pompidou, Paris, France
| | - Philippe Beaune
- Institut National de la Santé et de le Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; Université Paris Descartes, Paris, France; Service de Biochimie, Service de Néphrologie, Hôpital Européen Georges Pompidou, Paris, France
| | | | - Eric Thervet
- Université Paris Descartes, Paris, France; Service de Néphrologie, Centre Hospitalier Unversitaire de Caen, Caen, France; Service de Néphrologie, Centre Hospitalier Unversitaire de Caen, Caen, France
| | - Eric Chevet
- Oncogenesis Stress Signaling Laboratory, ER440 INSERM, Université de Rennes 1, Centre de Lutte Contre le Cancer Eugène Marquis, Rennes, France
| | - Dany Anglicheau
- Université Paris Descartes, Paris, France; Service de Néphrologie, INSERM U1151, Institut Necker Enfants Malades, Paris, France
| | - Nicolas Pallet
- Institut National de la Santé et de le Recherche Médicale (INSERM) U1147, Centre Universitaire des Saints Pères, Paris, France; Université Paris Descartes, Paris, France; Service de Biochimie, Service de Néphrologie, Hôpital Européen Georges Pompidou, Paris, France;
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