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Li ZL, Li XY, Zhou Y, Wang B, Lv LL, Liu BC. Renal tubular epithelial cells response to injury in acute kidney injury. EBioMedicine 2024; 107:105294. [PMID: 39178744 DOI: 10.1016/j.ebiom.2024.105294] [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: 04/27/2024] [Revised: 07/19/2024] [Accepted: 08/06/2024] [Indexed: 08/26/2024] Open
Abstract
Acute kidney injury (AKI) is a clinical syndrome characterized by a rapid and significant decrease in renal function that can arise from various etiologies, and is associated with high morbidity and mortality. The renal tubular epithelial cells (TECs) represent the central cell type affected by AKI, and their notable regenerative capacity is critical for the recovery of renal function in afflicted patients. The adaptive repair process initiated by surviving TECs following mild AKI facilitates full renal recovery. Conversely, when injury is severe or persistent, it allows the TECs to undergo pathological responses, abnormal adaptive repair and phenotypic transformation, which will lead to the development of renal fibrosis. Given the implications of TECs fate after injury in renal outcomes, a deeper understanding of these mechanisms is necessary to identify promising therapeutic targets and biomarkers of the repair process in the human kidney.
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Affiliation(s)
- Zuo-Lin Li
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Xin-Yan Li
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Yan Zhou
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Bin Wang
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China
| | - Lin-Li Lv
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China.
| | - Bi-Cheng Liu
- Institute of Nephrology, Zhongda Hospital, Southeast University School of Medicine, Nanjing, Jiangsu, China.
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Lipman AR, Lytrivi ID, Fernandez HE, Lynch AM, Yu ME, Stevens JS, Mohan S, Husain SA. Acute Kidney Injury Requiring Dialysis After Pediatric Heart Transplant. Pediatr Transplant 2024; 28:e14829. [PMID: 39036942 PMCID: PMC11268797 DOI: 10.1111/petr.14829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 06/11/2024] [Accepted: 07/05/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND Acute kidney injury (AKI) is a common complication of pediatric heart transplant, with a subset of patients developing severe AKI requiring dialysis (AKI-D). We aimed to identify the epidemiology, risk factors, and outcomes of postoperative AKI-D in pediatric heart transplant recipients. METHODS We retrospectively identified all pediatric first-time, single-organ heart transplants at our institution from 2014 to 2022. Postoperative AKI was defined as AKI within 2 weeks of transplant. Unadjusted and adjusted logistic regression were used to identify characteristics associated with AKI-D, and unadjusted time-to-event analyses were used to determine the association between AKI-D and survival free of kidney failure. RESULTS Among 177 patients included, 116 (66%) developed postoperative AKI of any stage, including 13 (7%) who developed AKI-D with median time from transplant to dialysis initiation of 6 days (IQR 3-13). In adjusted models, increased cardiopulmonary bypass time (OR 1.19, 95% CI 1.04-1.37, per 15 min increase in bypass time) and higher weight at transplant were associated with higher odds of AKI-D, whereas patient demographics and pretransplant kidney function were not associated with AKI-D. AKI-D was associated with greater mortality during initial hospitalization (46% vs. 1%, p < 0.001) and a lower rate of survival free of kidney failure. CONCLUSIONS The incidence of AKI-D after pediatric heart transplant was 7%, with extended cardiopulmonary bypass time associated with postoperative AKI-D even in adjusted models. Further research is needed to improve the prediction and management of AKI-D in this population.
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Affiliation(s)
- Amy R. Lipman
- Division of Nephrology, Department of Medicine, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
- Columbia University Renal Epidemiology Group, New York, NY, USA
| | - Irene D. Lytrivi
- Division of Cardiology, Department of Pediatrics, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | - Hilda E. Fernandez
- Division of Nephrology, Department of Medicine, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
- Division of Nephrology, Department of Pediatrics, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | - Aine M. Lynch
- Division of Cardiology, Department of Pediatrics, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
| | - Miko E. Yu
- Division of Nephrology, Department of Medicine, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
- Columbia University Renal Epidemiology Group, New York, NY, USA
| | - Jacob S. Stevens
- Division of Nephrology, Department of Medicine, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
- Columbia University Renal Epidemiology Group, New York, NY, USA
| | - Sumit Mohan
- Division of Nephrology, Department of Medicine, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
- Columbia University Renal Epidemiology Group, New York, NY, USA
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY
| | - Syed Ali Husain
- Division of Nephrology, Department of Medicine, Columbia University Vagelos College of Physicians & Surgeons, New York, NY, USA
- Columbia University Renal Epidemiology Group, New York, NY, USA
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Pipil K, Tyagi A, Tyagi S, Nigam C, Das S. Acute kidney injury in critically ill obstetric patients: Incidence and role of neutrophil gelatinase-associated lipocalcin - A prospective observational cohort study. Indian J Anaesth 2024; 68:680-685. [PMID: 39176119 PMCID: PMC11338374 DOI: 10.4103/ija.ija_1029_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 05/09/2024] [Accepted: 05/11/2024] [Indexed: 08/24/2024] Open
Abstract
Background and Aims Data focussing on acute kidney injury (AKI) in obstetric patients admitted to the intensive care unit (ICU) are scarce and even more so regarding the role of neutrophil gelatinase-associated lipocalcin (NGAL) in detecting AKI or predicting outcomes in these patients. Hence, we aim to evaluate the incidence of AKI in obstetric ICU patients and validate the role of urinary and serum NGAL in predicting the onset of AKI and mortality. Methods This prospective observational cohort included 45 obstetric patients admitted in ICU, excluding those with prior renal dysfunction. Serum creatinine and urine output were monitored for the occurrence of AKI during the ICU stay. The outcome of the patient (survival or death) in the ICU and hospital was recorded, and serum and urinary NGAL were determined at the time of ICU admission. Results AKI occurred in 32 [71.1%; 95% confidence interval (CI): 55.4%, 86.8%] patients during their ICU stay. Serum NGAL showed an area under receiver operating characteristic curve (AUROCC) of 0.630 (95% CI: 0.417, 0.842) (P = 0.231) for AKI and 0.486 (95% CI: 0.295, 0.676) (P = 0.883) for ICU mortality. Urinary NGAL showed AUROC = 0.472 (95% CI: 0.285, 0.660) (P = 0.772) to predict AKI and 0.430 (95% CI: 0.268, 0.652) (P = 0.684) for ICU mortality. Conclusions AKI is common amongst critically ill obstetric ICU patients. However, serum and urinary NGAL cannot be advocated to discriminate between patients with or without AKI or between survivors and non-survivors in critically ill obstetric patients.
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Affiliation(s)
- Kartik Pipil
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Delhi, India
| | - Asha Tyagi
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Delhi, India
| | - Surbhi Tyagi
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Delhi, India
| | - Chanchal Nigam
- Department of Anaesthesiology and Critical Care, University College of Medical Sciences and GTB Hospital, Delhi, India
| | - Shukla Das
- Department of Microbiology, University College of Medical Sciences and GTB Hospital, Delhi, India
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He RB, Li W, Yao R, Xu MY, Dong W, Chen Y, Ni WJ, Xie SS, Sun ZH, Li C, Liu D, Li SJ, Ji ML, Ru YX, Zhao T, Zhu Q, Wen JG, Li J, Jin J, Yao RS, Meng XM. Aurantiamide mitigates acute kidney injury by suppressing renal necroptosis and inflammation via GRPR-dependent mechanism. Int Immunopharmacol 2024; 139:112745. [PMID: 39059099 DOI: 10.1016/j.intimp.2024.112745] [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: 04/15/2024] [Revised: 07/15/2024] [Accepted: 07/20/2024] [Indexed: 07/28/2024]
Abstract
Acute kidney injury (AKI) manifests as a clinical syndrome characterised by the rapid accumulation of metabolic wastes, such as blood creatinine and urea nitrogen, leading to a sudden decline in renal function. Currently, there is a lack of specific therapeutic drugs for AKI. Previously, we identified gastrin-releasing peptide receptor (GRPR) as a pathogenic factor in AKI. In this study, we investigated the therapeutic potential of a novel Chinese medicine monomer, aurantiamide (AA), which exhibits structural similarities to our previously reported GRPR antagonist, RH-1402. We compared the therapeutic efficacy of AA with RH-1402 both in vitro and in vivo using various AKI models. Our results demonstrated that, in vitro, AA attenuated injury, necroptosis, and inflammatory responses in human renal tubular epithelial cells subjected to repeated hypoxia/reoxygenation and lipopolysaccharide stimulation. In vivo, AA ameliorated renal tubular injury and inflammation in mouse models of ischemia/reperfusion and cecum ligation puncture-induced AKI, surpassing the efficacy of RH-1402. Furthermore, molecular docking and cellular thermal shift assay confirmed GRPR as a direct target of AA, which was further validated in primary cells. Notably, in GRPR-silenced HK-2 cells and GRPR systemic knockout mice, AA failed to mitigate renal inflammation and injury, underscoring the importance of GRPR in AA's mechanism of action. In conclusion, our study has demonstrated that AA serve as a novel antagonist of GRPR and a promising clinical candidate for AKI treatment.
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Affiliation(s)
- Ruo-Bing He
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Wei Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Rui Yao
- Department of Urology, the First Affiliated Hospital of Anhui Medical University, Institute of Urology, Anhui Medical University, Anhui Province Key Laboratory of Urological and Andrological Diseases Research and Medical Transformation, Hefei 230022, China
| | - Meng-Ying Xu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Wei Dong
- Department of Pediatrics, Second Clinical School of Medicine, Anhui Medical University, Hefei, China
| | - Ying Chen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Wei-Jian Ni
- Department of Pharmacy, Centre for Leading Medicine and Advanced Technologies of IHM, Anhui Provincial Hospital, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, 230001, China; Anhui Provincial Key Laboratory of Precision Pharmaceutical Preparations and Clinical Pharmacy, Hefei, Anhui, 230001, China
| | - Shuai-Shuai Xie
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Zheng-Hao Sun
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China; School of Basic Medicine, Anhui Medical University, Hefei 230032, China
| | - Chao Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Dong Liu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Shuang-Jian Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ming-Lu Ji
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Ya-Xin Ru
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Tian Zhao
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Qi Zhu
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jia-Gen Wen
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Jun Li
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Juan Jin
- Department of Pharmacology, School of Basic Medical Sciences, Key Laboratory of Anti-inflammatory and Immunopharmacology, Ministry of Education, Anhui Medical University, Hefei 230032, China.
| | - Ri-Sheng Yao
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China.
| | - Xiao-Ming Meng
- Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, The Key Laboratory of Anti-inflammatory of Immune Medicines, Ministry of Education, Anhui Institute of Innovative Drugs, School of Pharmacy, Anhui Medical University, Hefei 230032, China.
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van Leeuwen ALI, Dekker NAM, Ibelings R, Tuip-de Boer AM, van Meurs M, Molema G, van den Brom CE. Modulation of angiopoietin-2 and Tie2: Organ specific effects of microvascular leakage and edema in mice. Microvasc Res 2024; 154:104694. [PMID: 38723844 DOI: 10.1016/j.mvr.2024.104694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 04/25/2024] [Accepted: 05/04/2024] [Indexed: 05/13/2024]
Abstract
INTRODUCTION Critical illness is associated with organ failure, in which endothelial hyperpermeability and tissue edema play a major role. The endothelial angiopoietin/Tie2 system, a regulator of endothelial permeability, is dysbalanced during critical illness. Elevated circulating angiopoietin-2 and decreased Tie2 receptor levels are reported, but it remains unclear whether they cause edema independent of other critical illness-associated alterations. Therefore, we have studied the effect of angiopoietin-2 administration and/or reduced Tie2 expression on microvascular leakage and edema under normal conditions. METHODS Transgenic male mice with partial deletion of Tie2 (heterozygous exon 9 deletion, Tie2+/-) and wild-type controls (Tie2+/+) received 24 or 72 pg/g angiopoietin-2 or PBS as control (n = 12 per group) intravenously. Microvascular leakage and edema were determined by Evans blue dye (EBD) extravasation and wet-to-dry weight ratio, respectively, in lungs and kidneys. Expression of molecules related to endothelial angiopoietin/Tie2 signaling were determined by ELISA and RT-qPCR. RESULTS In Tie2+/+ mice, angiopoietin-2 administration increased EBD extravasation (154 %, p < 0.05) and wet-to-dry weight ratio (133 %, p < 0.01) in lungs, but not in the kidney compared to PBS. Tie2+/- mice had higher pulmonary (143 %, p < 0.001), but not renal EBD extravasation, compared to wild-type control mice, whereas a more pronounced wet-to-dry weight ratio was observed in lungs (155 %, p < 0.0001), in contrast to a minor higher wet-to-dry weight ratio in kidneys (106 %, p < 0.05). Angiopoietin-2 administration to Tie2+/- mice did not further increase pulmonary EBD extravasation, pulmonary wet-to-dry weight ratio, or renal wet-to-dry weight ratio. Interestingly, angiopoietin-2 administration resulted in an increased renal EBD extravasation in Tie2+/- mice compared to Tie2+/- mice receiving PBS. Both angiopoietin-2 administration and partial deletion of Tie2 did not affect circulating angiopoietin-1, soluble Tie2, VEGF and NGAL as well as gene expression of angiopoietin-1, -2, Tie1, VE-PTP, ELF-1, Ets-1, KLF2, GATA3, MMP14, Runx1, VE-cadherin, VEGFα and NGAL, except for gene and protein expression of Tie2, which was decreased in Tie2+/- mice compared to Tie2+/+ mice. CONCLUSIONS In mice, the microvasculature of the lungs is more vulnerable to angiopoietin-2 and partial deletion of Tie2 compared to those in the kidneys with respect to microvascular leakage and edema.
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Affiliation(s)
- Anoek L I van Leeuwen
- Department of Anesthesiology, Amsterdam UMC, VU University, Amsterdam, the Netherlands; Department of Physiology, Amsterdam UMC, VU University, Amsterdam, the Netherlands
| | - Nicole A M Dekker
- Department of Anesthesiology, Amsterdam UMC, VU University, Amsterdam, the Netherlands; Department of Physiology, Amsterdam UMC, VU University, Amsterdam, the Netherlands
| | - Roselique Ibelings
- Department of Anesthesiology, Amsterdam UMC, VU University, Amsterdam, the Netherlands; Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, the Netherlands
| | - Anita M Tuip-de Boer
- Department of Intensive Care Medicine, Amsterdam UMC, University of Amsterdam, the Netherlands; Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, the Netherlands
| | - Matijs van Meurs
- Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, the Netherlands; Department of Critical Care, University Medical Center Groningen, Groningen, the Netherlands
| | - Grietje Molema
- Department of Pathology and Medical Biology, University Medical Center Groningen, Groningen, the Netherlands
| | - Charissa E van den Brom
- Department of Anesthesiology, Amsterdam UMC, VU University, Amsterdam, the Netherlands; Department of Intensive Care Medicine, Amsterdam UMC, University of Amsterdam, the Netherlands; Laboratory of Experimental Intensive Care and Anesthesiology, Amsterdam UMC, University of Amsterdam, the Netherlands.
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Chen C, Zhang J, Yu T, Feng H, Liao J, Jia Y. LRG1 Contributes to the Pathogenesis of Multiple Kidney Diseases: A Comprehensive Review. KIDNEY DISEASES (BASEL, SWITZERLAND) 2024; 10:237-248. [PMID: 38799248 PMCID: PMC11126829 DOI: 10.1159/000538443] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 03/08/2024] [Indexed: 05/29/2024]
Abstract
Background The increasing prevalence of kidney diseases has become a significant public health issue, with a global prevalence exceeding 10%. In order to accurately identify biochemical changes and treatment outcomes associated with kidney diseases, novel methods targeting specific genes have been discovered. Among these genes, leucine-rich α-2 glycoprotein 1 (LRG1) has been identified to function as a multifunctional pathogenic signaling molecule in multiple diseases, including kidney diseases. This study aims to provide a comprehensive overview of the current evidence regarding the roles of LRG1 in different types of kidney diseases. Summary Based on a comprehensive review, it was found that LRG1 was upregulated in the urine, serum, or renal tissues of patients or experimental animal models with multiple kidney diseases, such as diabetic nephropathy, kidney injury, IgA nephropathy, chronic kidney diseases, clear cell renal cell carcinoma, end-stage renal disease, canine leishmaniosis-induced kidney disease, kidney fibrosis, and aristolochic acid nephropathy. Mechanistically, the role of LRG1 in kidney diseases is believed to be detrimental, potentially through its regulation of various genes and signaling cascades, i.e., fibronectin 1, GPR56, vascular endothelial growth factor (VEGF), VEGFR-2, death receptor 5, GDF15, HIF-1α, SPP1, activin receptor-like kinase 1-Smad1/5/8, NLRP3-IL-1b, and transforming growth factor β pathway. Key Messages Further research is needed to fully comprehend the molecular mechanisms by which LRG1 contributes to the pathogenesis and pathophysiology of kidney diseases. It is anticipated that targeted treatments focusing on LRG1 will be utilized in clinical trials and implemented in clinical practice in the future.
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Affiliation(s)
- Chunyan Chen
- Department of Nephrology, Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing, China
| | - Jingwei Zhang
- Department of Urology, Guangzhou First People’s Hospital, Guangzhou, China
| | - Tao Yu
- Department of Emergency Medicine, Dean People’s Hospital, Jiujiang, China
| | - Haiya Feng
- Department of Burn Surgery, Department of Urology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
| | - Jian Liao
- Department of Nephrology, Jiaxing Hospital of Traditional Chinese Medicine, Jiaxing, China
| | - Yifei Jia
- Department of Burn Surgery, Department of Urology, Taizhou Central Hospital (Taizhou University Hospital), Taizhou, China
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Wang Y, Kuang Z, Xing X, Qiu Y, Zhang J, Shao D, Huang J, Dai C, He W. Proximal tubular FHL2, a novel downstream target of hypoxia inducible factor 1, is a protector against ischemic acute kidney injury. Cell Mol Life Sci 2024; 81:244. [PMID: 38814462 PMCID: PMC11139843 DOI: 10.1007/s00018-024-05289-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 05/14/2024] [Accepted: 05/20/2024] [Indexed: 05/31/2024]
Abstract
Four-and-a-half LIM domains protein 2 (FHL2) is an adaptor protein that may interact with hypoxia inducible factor 1α (HIF-1α) or β-catenin, two pivotal protective signaling in acute kidney injury (AKI). However, little is known about the regulation and function of FHL2 during AKI. We found that FHL2 was induced in renal tubular cells in patients with acute tubular necrosis and mice model of ischemia-reperfusion injury (IRI). In cultured renal proximal tubular cells (PTCs), hypoxia induced FHL2 expression and promoted the binding of HIF-1 to FHL2 promoter. Compared with control littermates, mice with PTC-specific deletion of FHL2 gene displayed worse renal function, more severe morphologic lesion, more tubular cell death and less cell proliferation, accompanying by downregulation of AQP1 and Na, K-ATPase after IRI. Consistently, loss of FHL2 in PTCs restricted activation of HIF-1 and β-catenin signaling simultaneously, leading to attenuation of glycolysis, upregulation of apoptosis-related proteins and downregulation of proliferation-related proteins during IRI. In vitro, knockdown of FHL2 suppressed hypoxia-induced activation of HIF-1α and β-catenin signaling pathways. Overexpression of FHL2 induced physical interactions between FHL2 and HIF-1α, β-catenin, GSK-3β or p300, and the combination of these interactions favored the stabilization and nuclear translocation of HIF-1α and β-catenin, enhancing their mediated gene transcription. Collectively, these findings identify FHL2 as a direct downstream target gene of HIF-1 signaling and demonstrate that FHL2 could play a critical role in protecting against ischemic AKI by promoting the activation of HIF-1 and β-catenin signaling through the interactions with its multiple protein partners.
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Affiliation(s)
- Yan Wang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China
| | - Ziwei Kuang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China
| | - Xueqi Xing
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China
| | - Yumei Qiu
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China
| | - Jie Zhang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China
| | - Dandan Shao
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China
| | - Jiaxin Huang
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China
| | - Chunsun Dai
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China.
| | - Weichun He
- Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, 262 North Zhongshan Road, Nanjing, Jiangsu, 210003, China.
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Gao Y, Lu X, Zhang G, Liu C, Sun S, Mao W, Jiang G, Zhou Y, Zhang N, Tao S, Chen M, Chen S, Zhang L. DRD4 alleviates acute kidney injury by suppressing ISG15/NOX4 axis-associated oxidative stress. Redox Biol 2024; 70:103078. [PMID: 38354631 PMCID: PMC10876914 DOI: 10.1016/j.redox.2024.103078] [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: 11/21/2023] [Revised: 01/30/2024] [Accepted: 02/05/2024] [Indexed: 02/16/2024] Open
Abstract
Acute kidney injury (AKI) is a life-threatening health condition associated with increasing morbidity and mortality. Despite extensive research on the mechanisms underlying AKI, effective clinical tools for prediction and treatment remain scarce. Oxidative stress and mitochondrial damage play a critical role in AKI and dopamine D4 receptor (DRD4) has been confirmed to be associated with oxidative stress. In this study, we hypothesized that DRD4 could attenuate AKI through its antioxidative and antiapoptotic effects. In vivo, DRD4 was remarkably decreased in the kidneys of mice subjected to ischemia/reperfusion injury (IRI) or cisplatin treatment. Notably, DRD4 significantly attenuated nephrotoxicity by suppressing oxidative stress and enhancing mitochondrial bioenergetics through the downregulation of reactive oxygen species (ROS) generation and NADPH oxidase 4 (NOX4) expression. In vitro, DRD4 demonstrated the ability to ameliorate oxidative stress-induced apoptosis in HK-2 cells subjected to hypoxia/reoxygenation- or cisplatin treatment. Transcriptome sequencing revealed that, mechanistically, DRD4 reduced the expression of its downstream target, interferon-stimulated gene 15 (ISG15), suppressing NOX4 ISGylation, enhancing the ubiquitination of NOX4, leading to its degradation, and ultimately counteracting oxidative stress-induced AKI. Altogether, these findings underscore the significance of DRD4 in AKI and elucidate DRD4 as a potential protectant against IRI or cisplatin-induced nephrotoxicity.
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Affiliation(s)
- Yue Gao
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Xun Lu
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Guangyuan Zhang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Chunhui Liu
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Si Sun
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Weipu Mao
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Guiya Jiang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Yu Zhou
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China
| | - Nieke Zhang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Shuchun Tao
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China
| | - Ming Chen
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.
| | - Shuqiu Chen
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.
| | - Lei Zhang
- Surgical Research Center, Institute of Urology, Medical School of Southeast University, Nanjing, China; Department of Urology, Affiliated Zhongda Hospital of Southeast University, Nanjing, China.
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9
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Zou Q, Chen X, Li B, Zhang R, Pan J, Zhang X, Zhang X, Sun SK. Bioinspired BSA@polydopamine@Fe Nanoprobe with Self-Purification Capacity for Targeted Magnetic Resonance Imaging of Acute Kidney Injury. ACS NANO 2024; 18:4783-4795. [PMID: 38301134 DOI: 10.1021/acsnano.3c09193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Contrast-enhanced magnetic resonance imaging (CE-MRI) of acute kidney injury (AKI) is severely hindered by the poor targeting capacity and potential toxicity of current contrast agents. Herein, we propose one-step fabrication of a bovine serum albumin@polydopamine@Fe (BSA@PDA@Fe, BPFe) nanoprobe with self-purification capacity for targeted CE-MRI of AKI. BSA endows the BPFe nanoprobe with renal tubule-targeting ability, and PDA is capable of completely inhibiting the intrinsic metal-induced reactive oxygen species (ROS), which are always involved in Fe/Mn-based agents. The as-prepared nanoprobe owns a tiny size of 2.7 nm, excellent solubility, good T1 MRI ability, superior biocompatibility, and powerful antioxidant capacity. In vivo CE-MRI shows that the BPFe nanoprobe can accumulate in the renal cortex due to the reabsorption effect toward the serum albumin. In the AKI model, impaired renal reabsorption function can be effortlessly detected via the diminishment of renal cortical signal enhancement. More importantly, the administration of the BPFe nanoprobe would not aggravate renal damage of AKI due to the outstanding self-purification capacity. Besides, the BPFe nanoprobe is employed for CE-MR angiography to visualize fine vessel structures. This work provides an MRI contrast agent with good biosafety and targeting ability for CE-MRI of kidney diseases.
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Affiliation(s)
- Quan Zou
- School of Medical Imaging, Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University, Tianjin 300203, China
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Xi Chen
- School of Medical Imaging, Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University, Tianjin 300203, China
| | - Bingjie Li
- Department of Radiology, Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Ruijie Zhang
- School of Medical Imaging, Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University, Tianjin 300203, China
| | - Jinbin Pan
- Department of Radiology, Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Xuejun Zhang
- School of Medical Imaging, Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University, Tianjin 300203, China
| | - Xuening Zhang
- Department of Radiology, The Second Hospital of Tianjin Medical University, Tianjin 300211, China
| | - Shao-Kai Sun
- School of Medical Imaging, Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University, Tianjin 300203, China
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10
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Komaru Y, Bai YZ, Kreisel D, Herrlich A. Interorgan communication networks in the kidney-lung axis. Nat Rev Nephrol 2024; 20:120-136. [PMID: 37667081 DOI: 10.1038/s41581-023-00760-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/08/2023] [Indexed: 09/06/2023]
Abstract
The homeostasis and health of an organism depend on the coordinated interaction of specialized organs, which is regulated by interorgan communication networks of circulating soluble molecules and neuronal connections. Many diseases that seemingly affect one primary organ are really multiorgan diseases, with substantial secondary remote organ complications that underlie a large part of their morbidity and mortality. Acute kidney injury (AKI) frequently occurs in critically ill patients with multiorgan failure and is associated with high mortality, particularly when it occurs together with respiratory failure. Inflammatory lung lesions in patients with kidney failure that could be distinguished from pulmonary oedema due to volume overload were first reported in the 1930s, but have been largely overlooked in clinical settings. A series of studies over the past two decades have elucidated acute and chronic kidney-lung and lung-kidney interorgan communication networks involving various circulating inflammatory cytokines and chemokines, metabolites, uraemic toxins, immune cells and neuro-immune pathways. Further investigations are warranted to understand these clinical entities of high morbidity and mortality, and to develop effective treatments.
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Affiliation(s)
- Yohei Komaru
- Department of Medicine, Division of Nephrology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Yun Zhu Bai
- Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Daniel Kreisel
- Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
- Department of Pathology & Immunology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA
| | - Andreas Herrlich
- Department of Medicine, Division of Nephrology, Washington University School of Medicine in St. Louis, St. Louis, MO, USA.
- VA Saint Louis Health Care System, John Cochran Division, St. Louis, MO, USA.
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11
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Yi X, Xu C, Yang J, Zhong C, Yang H, Tang L, Song S, Yu J. Tiliroside Protects against Lipopolysaccharide-Induced Acute Kidney Injury via Intrarenal Renin-Angiotensin System in Mice. Int J Mol Sci 2023; 24:15556. [PMID: 37958538 PMCID: PMC10648967 DOI: 10.3390/ijms242115556] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 10/03/2023] [Accepted: 10/06/2023] [Indexed: 11/15/2023] Open
Abstract
Tiliroside, a natural flavonoid, has various biological activities and improves several inflammatory diseases in rodents. However, the effect of Tiliroside on lipopolysaccharide (LPS)-induced acute kidney injury (AKI) and the underlying mechanisms are still unclear. This study aimed to evaluate the potential renoprotective effect of Tiliroside on LPS-induced AKI in mice. Male C57BL/6 mice were intraperitoneally injected with LPS (a single dose, 3 mg/kg) with or without Tiliroside (50 or 200 mg/kg/day for 8 days). Tiliroside administration protected against LPS-induced AKI, as reflected by ameliorated renal dysfunction and histological alterations. LPS-stimulated renal expression of inflammatory cytokines, fibrosis markers, and kidney injury markers in mice was significantly abolished by Tiliroside. This flavonoid also stimulated autophagy flux but inhibited oxidative stress and tubular cell apoptosis in kidneys from LPS-injected mice. Mechanistically, our study showed the regulation of Tiliroside on the intrarenal renin-angiotensin system in LPS-induced AKI mice. Tiliroside treatment suppressed intrarenal AGT, Renin, ACE, and Ang II, but upregulated intrarenal ACE2 and Ang1-7, without affecting plasma Ang II and Ang1-7 levels. Collectively, our data highlight the renoprotective action of Tiliroside on LPS-induced AKI by suppressing inflammation, oxidative stress, and tubular cell apoptosis and activating autophagy flux via the shift towards the intrarenal ACE2/Ang1-7 axis and away from the intrarenal ACE/Ang II axis.
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Affiliation(s)
- Xiaoli Yi
- Translational Medicine Centre, Jiangxi University of Chinese Medicine, Nanchang 330002, China; (X.Y.); (J.Y.); (C.Z.); (H.Y.); (L.T.); (S.S.)
| | - Chuanming Xu
- Translational Medicine Centre, Jiangxi University of Chinese Medicine, Nanchang 330002, China; (X.Y.); (J.Y.); (C.Z.); (H.Y.); (L.T.); (S.S.)
| | - Jing Yang
- Translational Medicine Centre, Jiangxi University of Chinese Medicine, Nanchang 330002, China; (X.Y.); (J.Y.); (C.Z.); (H.Y.); (L.T.); (S.S.)
| | - Chao Zhong
- Translational Medicine Centre, Jiangxi University of Chinese Medicine, Nanchang 330002, China; (X.Y.); (J.Y.); (C.Z.); (H.Y.); (L.T.); (S.S.)
| | - Huiru Yang
- Translational Medicine Centre, Jiangxi University of Chinese Medicine, Nanchang 330002, China; (X.Y.); (J.Y.); (C.Z.); (H.Y.); (L.T.); (S.S.)
| | - Le Tang
- Translational Medicine Centre, Jiangxi University of Chinese Medicine, Nanchang 330002, China; (X.Y.); (J.Y.); (C.Z.); (H.Y.); (L.T.); (S.S.)
| | - Shanshan Song
- Translational Medicine Centre, Jiangxi University of Chinese Medicine, Nanchang 330002, China; (X.Y.); (J.Y.); (C.Z.); (H.Y.); (L.T.); (S.S.)
| | - Jun Yu
- Center for Metabolic Disease Research, Department of Cardiovascular Sciences, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA;
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12
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Doi K, Matsuura R. Sympathetic Nerve Activation in Acute Kidney Injury and Cardiorenal Syndrome. Nephron Clin Pract 2023; 147:717-720. [PMID: 37757756 DOI: 10.1159/000534217] [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: 06/25/2023] [Accepted: 09/03/2023] [Indexed: 09/29/2023] Open
Abstract
The interactions between the kidney and heart are well studied and frequently lumped together as cardiorenal syndrome. It is believed that the sympathetic nervous system is involved in the mechanism of kidney injury caused by heart failure, but direct evidence is still lacking. In chronic renal fibrosis, sympathetic nerve activation was demonstrated to be harmful by unilateral ureteral obstruction and post-ischemia reperfusion injury models. On the other hand, sympathetic nerve activation seemed protective in acute kidney injury models such as ischemia reperfusion injury and lipopolysaccharide injection. Our recent investigation showed that post-ischemic renal fibrosis was attenuated when preexisting heart failure was induced by transverse aortic constriction surgery and renal denervation canceled this protection. These findings suggest sympathetic nerve activation in cardiorenal syndrome may be protective on chronic renal fibrosis development caused by ischemic an insult.
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Affiliation(s)
- Kent Doi
- Department of Emergency and Critical Care Medicine, The University of Tokyo, Tokyo, Japan
| | - Ryo Matsuura
- Department of Nephrology and Endocrinology, The University of Tokyo, Tokyo, Japan
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13
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Merrick BA, Martin NP, Brooks AM, Foley JF, Dunlap PE, Ramaiahgari S, Fannin RD, Gerrish KE. Insights into Repeated Renal Injury Using RNA-Seq with Two New RPTEC Cell Lines. Int J Mol Sci 2023; 24:14228. [PMID: 37762531 PMCID: PMC10531624 DOI: 10.3390/ijms241814228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/06/2023] [Accepted: 09/09/2023] [Indexed: 09/29/2023] Open
Abstract
Renal proximal tubule epithelial cells (RPTECs) are a primary site for kidney injury. We created two RPTEC lines from CD-1 mice immortalized with hTERT (human telomerase reverse transcriptase) or SV40 LgT antigen (Simian Virus 40 Large T antigen). Our hypothesis was that low-level, repeated exposure to subcytotoxic levels of 0.25-2.5 μM cisplatin (CisPt) or 12.5-100 μM aflatoxin B1 (AFB1) would activate distinctive genes and pathways in these two differently immortalized cell lines. RNA-seq showed only LgT cells responded to AFB1 with 1139 differentially expressed genes (DEGs) at 72 h. The data suggested that AFB1 had direct nephrotoxic properties on the LgT cells. However, both the cell lines responded to 2.5 μM CisPt from 3 to 96 h expressing 2000-5000 total DEGs. For CisPt, the findings indicated a coordinated transcriptional program of injury signals and repair from the expression of immune receptors with cytokine and chemokine secretion for leukocyte recruitment; robust expression of synaptic and substrate adhesion molecules (SAMs) facilitating the expression of neural and hormonal receptors, ion channels/transporters, and trophic factors; and the expression of nephrogenesis transcription factors. Pathway analysis supported the concept of a renal repair transcriptome. In summary, these cell lines provide in vitro models for the improved understanding of repeated renal injury and repair mechanisms. High-throughput screening against toxicant libraries should provide a wider perspective of their capabilities in nephrotoxicity.
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Affiliation(s)
- B. Alex Merrick
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA; (J.F.F.); (P.E.D.); (S.R.)
| | - Negin P. Martin
- Viral Vector Core, Neurobiology Laboratory, Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA;
| | - Ashley M. Brooks
- Biostatistics and Computational Biology Branch, Integrative Bioinformatics Support Group, Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA;
| | - Julie F. Foley
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA; (J.F.F.); (P.E.D.); (S.R.)
| | - Paul E. Dunlap
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA; (J.F.F.); (P.E.D.); (S.R.)
| | - Sreenivasa Ramaiahgari
- Mechanistic Toxicology Branch, Division of Translational Toxicology, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA; (J.F.F.); (P.E.D.); (S.R.)
| | - Rick D. Fannin
- Molecular Genomics Core Laboratory, Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA; (R.D.F.)
| | - Kevin E. Gerrish
- Molecular Genomics Core Laboratory, Division of Intramural Research, National Institute of Environmental Health Sciences, Research Triangle Park, NC 27709, USA; (R.D.F.)
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