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Reddy NA, Reyad AI, Allam SR. AKI and Urticaria in a Kidney Transplant Patient Undergoing Therapeutic Apheresis. Kidney360 2024; 5:483-484. [PMID: 38546984 PMCID: PMC11000723 DOI: 10.34067/kid.0000000000000319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/02/2024]
Affiliation(s)
- Nikhil A. Reddy
- North Texas Division, HCA Healthcare Research Institute, Fort Worth, Texas
| | - Ashraf I. Reyad
- Transplant Surgery, Medical City Fort Worth Transplant Institute, Fort Worth, Texas
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Al-Sultany HHA, Altimimi M, Qassam H, Hadi NR. Cardamonin mitigates kidney injury by modulating inflammation, oxidative stress, and apoptotic signaling in rats subjected to renal ischemia and reperfusion. J Med Life 2023; 16:1852-1856. [PMID: 38585526 PMCID: PMC10994612 DOI: 10.25122/jml-2023-0093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 04/23/2023] [Indexed: 04/09/2024] Open
Abstract
Renal ischemia-reperfusion injury (IRI) is a critical health concern that aggravates the pathophysiology of acute kidney injury (AKI), leading to high mortality rates in intensive care units. Cardamonin is a natural compound with anti-inflammatory and antioxidant properties. The current study aimed to evaluate the renoprotective impact of cardamonin against AKI induced by renal IRI. Male rats (n=5 per group) were divided into four groups: the sham group underwent anesthesia and abdominal incision only; the control group experienced bilateral renal artery clamping for 30 minutes followed by 2 hours of reperfusion; the vehicle group received the cardamonin vehicle 30 minutes before ischemia induction; and the cardamonin group was administered 5 mg/kg of cardamonin 30 minutes before ischemia. Blood urea nitrogen (BUN) and creatinine were measured to assess the renal function. Tumor necrosis factor alpha (TNF-α), interleukin 1 beta (IL-1β), interleukin-6 (IL-6), caspase 3, and F2-isoprostane were assessed in renal tissues. Kidney injury was examined using the hematoxylin and eosin stain method. Compared to the sham group, the control group exhibited significantly higher levels of BUN, creatinine, TNF-α, IL-1β, IL-6, F2-isoprostane, and caspase 3 in renal tissues, along with severe kidney injury as evidenced by histological analysis. Compared to the control group, pretreatment with cardamonin resulted in a significant reduction in these biomarkers and alleviated renal damage. Cardamonin had renoprotective effects against renal ischemia and reperfusion injury via modulating inflammation, oxidative stress, and apoptosis pathways.
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Affiliation(s)
| | - Murooj Altimimi
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Kufa, Najaf, Iraq
| | - Heider Qassam
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Kufa, Najaf, Iraq
| | - Najah Rayish Hadi
- Department of Pharmacology and Therapeutics, Faculty of Medicine, University of Kufa, Najaf, Iraq
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Nguyen HN, Yamada A, Naka S, Mukaisho KI, Tani T. Comparison of off-clamp microwave scissors-based sutureless partial nephrectomy versus on-clamp conventional partial nephrectomy in a canine model. Front Surg 2023; 10:1255929. [PMID: 37795145 PMCID: PMC10546044 DOI: 10.3389/fsurg.2023.1255929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 09/05/2023] [Indexed: 10/06/2023] Open
Abstract
Objectives To compare the usefulness and safety of off-clamp microwave scissors-based sutureless partial nephrectomy (MSPN) with on-clamp conventional partial nephrectomy (cPN) in dogs. Methods We performed off-clamp MSPN using microwave scissors (MWS) in six dogs, and on-clamp cPN in three dogs, in two-stage experiments. The bilateral kidney upper poles were resected via a midline incision under general anesthesia. After 14 days of follow-up, the lower pole resections were performed. The renal calyces exposed during renal resections were sealed and transected using MWS in off-clamp MSPN and were sutured in on-clamp cPN. In the off-clamp MSPN group, the generator's power output of MWS was set as either 50 W or 60 W for each kidney side. We compared the procedure time (PT), ischemic time (IT), blood loss (BL), and normal nephron loss (NNL) between the two techniques using the Mann-Whitney U-test. Results We successfully performed 24 off-clamp MSPNs and 12 on-clamp cPNs. The off-clamp MSPN was significantly superior to on-clamp cPN in avoiding renal ischemia (median IT, 0 min vs. 8.6 min, p < 0.001) and reducing PT (median PT, 5.8 min vs. 11.5 min, p < 0.001) and NNL (median NNL, 5.3 mm vs. 6.0 mm, p = 0.006) with comparable BL (median BL, 20.9 ml vs. 23.2 ml, p = 0.804). No bleeding and major urine leakage were noted during the reoperations. Conclusions Off-clamp MSPN outperforms on-clamp cPN in lowering the risks of postoperative renal function impairment in dogs.
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Affiliation(s)
- Ha Ngoc Nguyen
- Department of Advanced Medical Research and Development, Shiga University of Medical Science, Shiga, Japan
- Department of Urology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Atsushi Yamada
- Medical Innovation Research Center, Shiga University of Medical Science, Shiga, Japan
| | - Shigeyuki Naka
- Department of Advanced Medical Research and Development, Shiga University of Medical Science, Shiga, Japan
- Department of Surgery, Hino Memorial Hospital, Shiga, Japan
| | - Ken-Ichi Mukaisho
- Division of Pathology, Shiga University of Medical Science, Shiga, Japan
| | - Tohru Tani
- Department of Advanced Medical Research and Development, Shiga University of Medical Science, Shiga, Japan
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Curto AF, Lima AE, Verdelho M. Anuric Acute Kidney Injury in a Patient with Left Flank Pain. Kidney360 2023; 4:1008-1009. [PMID: 37499072 PMCID: PMC10374141 DOI: 10.34067/kid.0000000000000114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Affiliation(s)
- Andreia F Curto
- Department of Nephrology, Hospital Professor Doutor Fernando Fonseca, Amadora, Portugal
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Nguyen HN, Yamada A, Naka S, Mukaisho KI, Tani T. Feasibility of Microwave Scissors-Based Off-Clamp Laparoscopic Partial Nephrectomy in a Porcine Model. Surg Innov 2023:15533506231165830. [PMID: 36961743 DOI: 10.1177/15533506231165830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023]
Abstract
OBJECTIVES To assess the feasibility of off-clamp laparoscopic partial nephrectomy using microwave scissors. METHODS We performed transperitoneal laparoscopic partial nephrectomy, without hilar clamping or renorrhaphy, using only microwave scissors for renal resection in a porcine model. For each kidney, 2 types of procedures were performed: a middle pole resection excising an area of 2-cm diameter and approximately 1-cm depth and a lower pole resection at the level of the lower polar line. The renal calyces exposed during renal resection were sealed and transected using microwave scissors. After 3 days of follow-up, the pigs were reoperated to inspect for postoperative complications. Euthanasia was performed to collect the remaining kidneys for histopathological examination. RESULTS Ten procedures were successfully performed, without hilar clamping or suturing of the renal calyces and parenchyma, in 5 kidneys from 3 pigs. The median resecting time, blood loss, and lateral thermal injury were 23.2 min, 47.1 mL, and 6.8 mm in the middle pole resection, and were 15.1 min, 26.5 mL, and 6.9 mm in the lower pole resection, respectively. No complications were noted during reoperation, such as postoperative hemorrhage and major urine leakage. Extravasation occurred in 2 middle pole resections and 3 lower pole resections during retrograde pyelogram. Hematoxylin and eosin staining revealed thermal injury characterized by tissue microwave fixation in the near zone and acute coagulative necrosis in the intermediate zone. CONCLUSIONS Microwave scissors-based off-clamp laparoscopic partial nephrectomy is feasible in pigs and can be used for clinical applications.
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Affiliation(s)
- Ha Ngoc Nguyen
- Department of Research and Development for Innovative Medical Devices and Systems, 13051Shiga University of Medical Science, Shiga, Japan
- Department of Urology, Faculty of Medicine, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - Atsushi Yamada
- Department of Research and Development for Innovative Medical Devices and Systems, 13051Shiga University of Medical Science, Shiga, Japan
| | - Shigeyuki Naka
- Department of Research and Development for Innovative Medical Devices and Systems, 13051Shiga University of Medical Science, Shiga, Japan
- Department of Surgery, 84164Hino Memorial Hospital, Shiga, Japan
| | - Ken-Ichi Mukaisho
- Division of Pathology, 13051Shiga University of Medical Science, Shiga, Japan
| | - Tohru Tani
- Department of Research and Development for Innovative Medical Devices and Systems, 13051Shiga University of Medical Science, Shiga, Japan
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Gendy AM, El-Gazar AA, Ragab GM, Al-Mokaddem AK, El-Haddad AE, Selim HMRM, Yousef EM, Hamed NO, Ibrahim SSA. Possible Implication of Nrf2, PPAR-γ and MAPKs Signaling in the Protective Role of Mangiferin against Renal Ischemia/Reperfusion in Rats. Pharmaceuticals (Basel) 2022; 16. [PMID: 36678503 DOI: 10.3390/ph16010006] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/12/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Mangiferin (Mang) is a known glucosylxanthone that has proven its shielding effect against ischemia/reperfusion (Is/R). However, its full underlying mechanistic perspective against renal Is/R induced lesions is not fully revealed. Consequently, the purpose of this study is to track further non-investigated modulatory signals of Mang against the renal Is/R model involving nuclear factor erythroid 2-related factor (Nrf)2/heme oxygenase (HO)-1, peroxisome proliferator-activated receptor (PPAR)-γ/nuclear factor (NF)-κB, p38 mitogen-activated protein kinase (MAPK), and c-Jun N-terminal kinase (JNK) signaling. To ratify our aim, Mang was administrated (20 mg/kg, i.p for seven days) before the induction of bilateral Is/R. Mechanistic maneuver revealed that Mang balanced oxidative state via increasing the expression of the antioxidant Nrf2/HO-1 cue with subsequent enhancement of GSH besides MDA lessening. Additionally, Mang enhanced PPAR-γ mRNA expression and declined p-p38 MAPK and p-JNK expression with concomitant NF-κB downsizing leading to iNOS/NOx and TNF-α rebating. Furthermore, the Mang anti-apoptotic trait was affirmed by enriching Bcl-2 expression as well as decreasing Bax and caspase-3 expression. All these potentials were in the line with the molecular docking results and the improved histopathological findings and renal function biomarkers. Consequently, Mang provided plausible protective mechanisms against renal Is/R-related events, possibly by amending oxidative status, inflammatory mediators, and apoptotic cell death through the involvement of Nrf2, PPAR-γ, MAPK, JNK, and NF-κB signaling.
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Hüsing AM, Wulfmeyer VC, Gaedcke S, Fleig SV, Rong S, DeLuca D, Haller H, Schmitt R, von Vietinghoff S. Myeloid CCR2 Promotes Atherosclerosis after AKI. J Am Soc Nephrol 2022; 33:1487-1500. [PMID: 35537780 PMCID: PMC9342642 DOI: 10.1681/asn.2022010048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 04/10/2022] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND The risk of cardiovascular events rises after AKI. Leukocytes promote atherosclerotic plaque growth and instability. We established a model of enhanced remote atherosclerosis after renal ischemia-reperfusion (IR) injury and investigated the underlying inflammatory mechanisms. METHODS Atherosclerotic lesions and inflammation were investigated in native and bone marrow-transplanted LDL receptor-deficient (LDLr-/- ) mice after unilateral renal IR injury using histology, flow cytometry, and gene expression analysis. RESULTS Aortic root atherosclerotic lesions were significantly larger after renal IR injury than in controls. A gene expression screen revealed enrichment for chemokines and their cognate receptors in aortas of IR-injured mice in early atherosclerosis, and of T cell-associated genes in advanced disease. Confocal microscopy revealed increased aortic macrophage proximity to T cells. Differential aortic inflammatory gene regulation in IR-injured mice largely paralleled the pattern in the injured kidney. Single-cell analysis identified renal cell types that produced soluble mediators upregulated in the atherosclerotic aorta. The analysis revealed a marked early increase in Ccl2, which CCR2+ myeloid cells mainly expressed. CCR2 mediated myeloid cell homing to the post-ischemic kidney in a cell-individual manner. Reconstitution with Ccr2-/- bone marrow dampened renal post-ischemic inflammation, reduced aortic Ccl2 and inflammatory macrophage marker CD11c, and abrogated excess aortic atherosclerotic plaque formation after renal IR. CONCLUSIONS Our data introduce an experimental model of remote proatherogenic effects of renal IR and delineate myeloid CCR2 signaling as a mechanistic requirement. Monocytes should be considered as mobile mediators when addressing systemic vascular sequelae of kidney injury.
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Affiliation(s)
- Anne M. Hüsing
- Division of Nephrology and Hypertension, Department of Internal Medicine, Hannover Medical School, Hannover, Germany
| | - Vera C. Wulfmeyer
- Division of Nephrology and Hypertension, Department of Internal Medicine, Hannover Medical School, Hannover, Germany
| | - Svenja Gaedcke
- German Centre for Lung Research, Hannover Medical School, Hannover, Germany
| | - Susanne V. Fleig
- Division of Nephrology and Hypertension, Department of Internal Medicine, Hannover Medical School, Hannover, Germany,Nephrology Section, Medical Clinic 1, University Hospital Bonn, Rheinische Friedrich Wilhelm University of Bonn, Bonn, Germany
| | - Song Rong
- Division of Nephrology and Hypertension, Department of Internal Medicine, Hannover Medical School, Hannover, Germany
| | - David DeLuca
- German Centre for Lung Research, Hannover Medical School, Hannover, Germany
| | - Hermann Haller
- Division of Nephrology and Hypertension, Department of Internal Medicine, Hannover Medical School, Hannover, Germany
| | - Roland Schmitt
- Division of Nephrology and Hypertension, Department of Internal Medicine, Hannover Medical School, Hannover, Germany
| | - Sibylle von Vietinghoff
- Division of Nephrology and Hypertension, Department of Internal Medicine, Hannover Medical School, Hannover, Germany,Nephrology Section, Medical Clinic 1, University Hospital Bonn, Rheinische Friedrich Wilhelm University of Bonn, Bonn, Germany
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Barakat M, Hussein AM, Salama MF, Awadalla A, Barakat N, Serria M, El-Shafey M, El-Sherbiny M, El Adl MA. Possible Underlying Mechanisms for the Renoprotective Effect of Retinoic Acid-Pretreated Wharton's Jelly Mesenchymal Stem Cells against Renal Ischemia/Reperfusion Injury. Cells 2022; 11:cells11131997. [PMID: 35805083 PMCID: PMC9266019 DOI: 10.3390/cells11131997] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 06/18/2022] [Accepted: 06/20/2022] [Indexed: 11/18/2022] Open
Abstract
Objectives: The current work investigated the effect of Wharton jelly mesenchymal stem cells (WJ-MSCs) pretreated with all-trans-retinoic acid (ATRA) on renal ischemia in rats and the possible role of oxidative stress, apoptotic and Wnt/β-Catenin signaling pathways, and inflammatory cytokines in their effects. Methods: The study included 90 male Sprague Dawley rats that were allocated to five groups (n = 18 rats): (I) Sham-operated group (right nephrectomy was performed); (II) Ischemia/reperfusion injury (IRI) group, a sham group with 45-min renal ischemia on the left kidney; (III) ATRA group, an ischemic group with an intravenous (i.v.) administration of ATRA 10 µM, 10 min post-surgery); (IV) WJ-MSCs group, an IRI group with an i.v. administration of 150 µL containing 7 × 106 WJ-MSCs, 10 min post-surgery; (V) WJ-MSCs + ATRA group, an IRI group with an i.v. administration of 150 µL of 7 × 106 WJ-MSCs pretreated with 10 µM ATRA. At the end of the experiments, serum creatinine, BUN micro-albuminuria (MAU), urinary protein, markers of redox state in the left kidney (MDA, CAT, SOD, and GSH), and the expression of Bax, IL-6, HIF-1α, Wnt7B, and β-catenin genes at the level of mRNA as well as for immunohistochemistry for NFkB and β-Catenin markers were analyzed. Results: The current study found that 45-min of renal ischemia resulted in significant impairment of kidney function (evidenced by the increase in serum creatinine, BUN, and urinary proteins) and deterioration of the kidney morphology, which was associated with a significant increase in redox state (evidenced by an increase in MDA and a decrease in GSH, SOD, and CAT), and a significant increase in inflammatory and apoptotic processes (evidenced by an increase in Bax and IL-6, NFkB, Wnt7B, β-catenin and HIF-1α) in kidney tissues (p < 0.05). On the other hand, treatment with ATRA, WJ-MSCs, or a combination of both, caused significant improvement in kidney function and morphology, which was associated with significant attenuation of oxidative stress, apoptotic markers, and inflammatory cytokines (IL6 and NFkB) with the upregulation of HIF-1α and β-catenin in kidney tissues (p < 0.05). Moreover, the renoprotective effect of WJ-MSCs pretreated with ATRA was more potent than WJ-MSCs alone. Conclusions: It is concluded that preconditioning of WJ-MSCs with ATRA may enhance their renoprotective effect. This effect could be due to the upregulation of the beta-catenin/Wnt pathway and attenuation of apoptosis, inflammation, and oxidative stress.
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Affiliation(s)
- Mai Barakat
- Department of Biochemistry, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt; (M.B.); (M.F.S.); (M.A.E.A.)
- Institute of Global Public Health and Human Ecology, School of Science and Engineering, American University, Cairo 11835, Egypt
| | - Abdelaziz M. Hussein
- Department of Medical Physiology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
- Correspondence: ; Tel.: +20-10-0242-1140
| | - Mohamed F. Salama
- Department of Biochemistry, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt; (M.B.); (M.F.S.); (M.A.E.A.)
| | - Amira Awadalla
- Urology and Nephrology Center, Mansoura University, Mansoura 35516, Egypt; (A.A.); (N.B.)
| | - Nashwa Barakat
- Urology and Nephrology Center, Mansoura University, Mansoura 35516, Egypt; (A.A.); (N.B.)
| | - Mohamed Serria
- Department of Biochemistry, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt;
| | - Mohamed El-Shafey
- Department of Anatomy and Embryology, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt;
- Physiological Sciences Department, Fakeeh College for Medical Sciences, Jeddah 21461, Saudi Arabia
| | - Mohamed El-Sherbiny
- Department of Basic Medical Sciences, College of Medicine, AlMaarefa University, Riyadh 71666, Saudi Arabia;
| | - Mohamed A. El Adl
- Department of Biochemistry, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt; (M.B.); (M.F.S.); (M.A.E.A.)
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Rajagopalan KS, Glasstetter LM, Zhu XY, Thaler R, Tang H, Jordan KL, Saadiq IM, Herrmann SM, Chade AR, Irazabal MV, Lerman LO, Eirin A. Renal Ischemia Induces Epigenetic Changes in Apoptotic, Proteolytic, and Mitochondrial Genes in Swine Scattered Tubular-like Cells. Cells 2022; 11:1803. [PMID: 35681498 PMCID: PMC9180447 DOI: 10.3390/cells11111803] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/19/2022] [Accepted: 05/27/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Scattered tubular-like cells (STCs) are dedifferentiated renal tubular cells endowed with progenitor-like characteristics to repair injured parenchymal cells. STCs may be damaged and rendered ineffective by renal artery stenosis (RAS), but the underlying processes remain unclear. We hypothesized that RAS alters the epigenetic landscape on DNA and the ensuing gene transcriptional profile of swine STCs. METHODS CD24+/CD133+ STCs were isolated from pig kidneys after 10 weeks of RAS or sham (n = 3 each) and their whole 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) profiles were examined by 5mC and 5hmC immunoprecipitation sequencing (MeDIP-/hMeDIP-seq, respectively). A subsequent integrated (MeDIP/hMeDIP-seq/mRNA-seq) analysis was performed by comparing all online available gene sets using Gene Set Enrichment Analysis. Apoptosis, proteolysis, and mitochondrial structure and function were subsequently evaluated in vitro. RESULTS Differential expression (DE) analysis revealed 239 genes with higher and 236 with lower 5mC levels and 275 genes with higher and 315 with lower 5hmC levels in RAS-STCs compared to Normal-STCs (fold change ≥1.4 or ≤0.7, p ≤ 0.05). Integrated MeDIP-/hMeDIP-seq/mRNA-seq analysis identified several overlapping (DE-5mC/mRNA and DE-5hmC/mRNA levels) genes primarily implicated in apoptosis, proteolysis, and mitochondrial functions. Furthermore, RAS-STCs exhibited decreased apoptosis, mitochondrial matrix density, and ATP production, and increased intracellular amino acid concentration and ubiquitin expression. CONCLUSIONS Renal ischemia induces epigenetic changes in apoptosis-, proteolysis-, and mitochondria-related genes, which correlate with alterations in the transcriptomic profile and corresponding function of swine STCs. These observations may contribute to developing novel targeted interventions to preserve the reparative potency of STCs in renal disease.
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Affiliation(s)
- Kamalnath S. Rajagopalan
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Logan M. Glasstetter
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Xiang-Yang Zhu
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Roman Thaler
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN 55901, USA;
| | - Hui Tang
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Kyra L. Jordan
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Ishran M. Saadiq
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Sandra M. Herrmann
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Alejandro R. Chade
- Department of Physiology and Biophysics, Medicine and Radiology, University of Mississippi Medical Center, Jackson, MS 55901, USA;
| | - Maria V. Irazabal
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Lilach O. Lerman
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
| | - Alfonso Eirin
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN 55901, USA; (K.S.R.); (L.M.G.); (X.-Y.Z.); (H.T.); (K.L.J.); (I.M.S.); (S.M.H.); (M.V.I.); (L.O.L.)
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Yamaguchi N, Fukuda A, Furutera N, Kimoto M, Maruo M, Kudo A, Aoki K, Nakata T, Uesugi N, Fukunaga N, Shibata H. Nephrotic Syndrome Associated with Buerger's Disease. Intern Med 2022; 61:865-869. [PMID: 34471027 PMCID: PMC8987250 DOI: 10.2169/internalmedicine.7885-21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
We herein report a 43-year-old woman with Buerger's disease who presented with nephrotic syndrome, renal dysfunction, and mild hypertension. A kidney biopsy revealed focal segmental glomerulosclerosis (FSGS), but there were no findings associated with frequent secondary FSGS or a history of long-term hypertension. A small focal renal infarction was seen on 99mTc-dimercaptosuccinic acid renal scintigraphy, suggesting that FSGS was due to renal microinfarction associated with Buerger's disease. After the commencement of angiotensin-converting enzyme inhibitor therapy, the hypertension immediately improved, along with significant attenuation of proteinuria. Renal ischemia by vasoconstriction of the glomerular efferent arterioles in association with Buerger's disease may result in glomerular hyperfiltration followed by FSGS.
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Affiliation(s)
- Nahomi Yamaguchi
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Akihiro Fukuda
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Norihiro Furutera
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Miyuki Kimoto
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Misaki Maruo
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Akiko Kudo
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Kohei Aoki
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Takeshi Nakata
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Noriko Uesugi
- Department of Pathology, Fukuoka University School of Medicine, Japan
| | - Naoya Fukunaga
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
| | - Hirotaka Shibata
- Department of Endocrinology, Metabolism, Rheumatology and Nephrology, Faculty of Medicine, Oita University, Japan
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11
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Guliev BG, Komyakov BK, Yagubov KK. [Robot-assisted partial nephrectomy with selective ischemia]. Urologiia 2022:55-60. [PMID: 35274860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
INTRODUCTION Clamping of the renal artery during partial nephrectomy leads to renal ischemia and a deterioration of its function. An alternative to total ischemia is to isolate and clamp the segmental branch of the renal artery supplying the tumor. AIM To evaluate the efficiency of robot-assisted partial nephrectomy (RAPN) with selective renal ischemia. MATERIAL AND METHODS A total of 42 patients with renal tumors of stage T1a (n=34) and T1b (n=8) undergoing RAPN were included in the study. There were 25 men (59.5%) and 17 women. The mean age was 56.0 +/- 7.5 years, the tumor size ranged from 2.5 to 6.8 cm. Patients with a solitary kidney, multiple tumors, and those who underwent partial nephrectomy with clamping of the renal artery were excluded from the study. CT angiography with 3D reconstruction were used to detect the segmental branches of the renal artery, that supply the tumor. To determine the complexity of renal tumors, the RENAL nephrometric scale was used. Complications were assessed according to the Clavien-Dindo classification. In addition, mean operative time and volume of blood loss, warm ischemia time, pre- and postoperative renal function, and oncological outcomes were analyzed. The RAPN was considered successful if it was performed with selective clamping of the artery. RESULTS RAPN with selective ischemia was effective in 38 (90.5%) of 42 patients. In 4 (9.5%) cases with tumors of T1b stage and high RENAL scores (> 8), total ischemia was eventually used in order to control bleeding. According to CT angiography, these patients had more or equal 2 branches of renal artery, supplying the tumor. Mean operation time, volume of blood loss and warm ischemia time were 130.0+/-35 min, 185.0+/-80.0 ml and 14.0+/-3.2 min, respectively. In one case, there was an injury to the renal vein, which was sutured. Postoperative complications were observed in 5 (12.0%) patients. The glomerular filtration rate pre- and postoperatively was 76.5 and 72.0 ml/min/1.73 m2, and its decrease 1 month after RAPN was not significant (p>0.05). CONCLUSION Preoperative evaluation of renal arterial anatomy allows to detect the segmental branch that supplies the tumor. By its clamping, it is possible to perform efficient and safe robot-assisted partial nephrectomy without total ischemia.
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Affiliation(s)
- B G Guliev
- Department of urology of North-Western State Medical University named after I.I. Mechnikov, Saint Petersburg, Russia
- Center of Urology with robot-assisted surgery of City Mariinsky hospital, Saint Petersburg, Russia
| | - B K Komyakov
- Department of urology of North-Western State Medical University named after I.I. Mechnikov, Saint Petersburg, Russia
- Center of Urology with robot-assisted surgery of City Mariinsky hospital, Saint Petersburg, Russia
| | - Kh Kh Yagubov
- Department of urology of North-Western State Medical University named after I.I. Mechnikov, Saint Petersburg, Russia
- Center of Urology with robot-assisted surgery of City Mariinsky hospital, Saint Petersburg, Russia
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12
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Liu J, Li Y, Lyu L, Xiao L, Memon AA, Yu X, Halim A, Patel S, Osman A, Yin W, Jiang J, Naini S, Lim K, Zhang A, Williams JD, Koester R, Qi KZ, Fucci QA, Ding L, Chang S, Patel A, Mori Y, Chaudhari A, Bao A, Liu J, Lu TS, Siedlecki A. Integrin α5 Is Regulated by miR-218-5p in Endothelial Progenitor Cells. J Am Soc Nephrol 2022; 33:565-582. [PMID: 35091451 PMCID: PMC8975065 DOI: 10.1681/asn.2021020140] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 12/27/2021] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Endothelial cell injury is a common nidus of renal injury in patients and consistent with the high prevalence of AKI reported during the coronavirus disease 2019 pandemic. This cell type expresses integrin α5 (ITGA5), which is essential to the Tie2 signaling pathway. The microRNA miR-218-5p is upregulated in endothelial progenitor cells (EPCs) after hypoxia, but microRNA regulation of Tie2 in the EPC lineage is unclear. METHODS We isolated human kidney-derived EPCs (hkEPCs) and surveyed microRNA target transcripts. A preclinical model of ischemic kidney injury was used to evaluate the effect of hkEPCs on capillary repair. We used a genetic knockout model to evaluate the effect of deleting endogenous expression of miR-218 specifically in angioblasts. RESULTS After ischemic in vitro preconditioning, miR-218-5p was elevated in hkEPCs. We found miR-218-5p bound to ITGA5 mRNA transcript and decreased ITGA5 protein expression. Phosphorylation of 42/44 MAPK decreased by 73.6% in hkEPCs treated with miR-218-5p. Cells supplemented with miR-218-5p downregulated ITGA5 synthesis and decreased 42/44 MAPK phosphorylation. In a CD309-Cre/miR-218-2-LoxP mammalian model (a conditional knockout mouse model designed to delete pre-miR-218-2 exclusively in CD309+ cells), homozygotes at e18.5 contained avascular glomeruli, whereas heterozygote adults showed susceptibility to kidney injury. Isolated EPCs from the mouse kidney contained high amounts of ITGA5 and showed decreased migratory capacity in three-dimensional cell culture. CONCLUSIONS These results demonstrate the critical regulatory role of miR-218-5p in kidney EPC migration, a finding that may inform efforts to treat microvascular kidney injury via therapeutic cell delivery.
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Affiliation(s)
- Jialing Liu
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts,Nephrology, Department of Medicine, Guangzhou University of Chinese Medicine, The Second Affiliated Hospital of Chinese Medicine, Guangzhou, China
| | - Yi Li
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Lingna Lyu
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts,Department of Molecular Biology, Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Liang Xiao
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts,Department of Surgery and Oncology, Shenzhen Second People’s Hospital/the First Affiliated Hospital of Shenzhen University Health Science Center, Shenzhen, China
| | - Aliza A. Memon
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Xin Yu
- Blood Transfusion Research Institute, Wuxi Red Cross Blood Center, Wuxi, Jiangsu, China
| | - Arvin Halim
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Shivani Patel
- Division of Nephrology, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | | | - Wenqing Yin
- Division of Nephrology, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts
| | - Jie Jiang
- Department of Cancer Biology, Dana-Farber Cancer Institute, Boston, Massachusetts,Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, Massachusetts
| | - Said Naini
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Kenneth Lim
- Division of Nephrology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Aifeng Zhang
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Jonathan D. Williams
- DNA Identification Testing Division, Laboratory Corporation of America Holdings, Burlington, North Carolina
| | - Ruth Koester
- DNA Identification Testing Division, Laboratory Corporation of America Holdings, Burlington, North Carolina
| | | | - Quynh-Anh Fucci
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Lai Ding
- Program for Interdisciplinary Neuroscience, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Steven Chang
- Department of Surgery, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Ankit Patel
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Yutaro Mori
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Advika Chaudhari
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Aaron Bao
- Washington University in St. Louis, St. Louis, Missouri
| | - Jia Liu
- Shenzhen Jiake Biotechnology, Shenzhen, China
| | - Tzong-Shi Lu
- Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School, Boston, Massachusetts
| | - Andrew Siedlecki
- Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts
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13
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Abbas W, Altemimi M, Qassam H, Hameed AA, Zigam Q, Abbas L, Jabir M, Hadi N. Fimasartan ameliorates renal ischemia reperfusion injury via modulation of oxidative stress, inflammatory and apoptotic cascades in a rat model. J Med Life 2022; 15:241-251. [PMID: 35419091 PMCID: PMC8999095 DOI: 10.25122/jml-2021-0154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Accepted: 09/30/2021] [Indexed: 11/19/2022] Open
Abstract
Ischemia-reperfusion injury (IRI) can be defined as changes in the functions and structures of the tissues resulting from the restoration of blood after a period of ischemia. This study aimed to assess the potential protective effect of Fimasartan (angiotensin receptor antagonist) in the bilateral renal IRI in male rats through its potential effect on renal functions, modulation of the inflammatory cascade, oxidative stress, and apoptotic effect. The animals were equally assigned into four groups. The sham (negative control) group was exposed to surgical conditions without induction of IRI. The control group was exposed to ischemia by occluding the renal pedicles by clamps for 30 min, followed by restoration of blood for 2h. The vehicle-treated group received dimethyl sulfoxide (DMSO) by intraperitoneal injection (IP) 30 minutes before clamping. Fimasartan-treated group: rats pretreated with Fimasartan a dose of 3 mg/kg IP; this was half hour before occluding the renal pedicles. Animals were then exposed to 30 min ischemia (clamping the renal pedicles) followed by 2h reperfusion by releasing the clamps. Blood samples were collected to examine the levels of serum urea and creatinine. Renal tissue was used to measure the levels of cytokines (TNFα, IL-6) and total antioxidant capacity (TAC). Immunohistochemistry was used to assess the levels of Bax, caspase 3, and Bcl-2. Histopathological analyses were performed to detect the parenchymal injury. The present study shows that pretreatment with Fimasartan improves kidney function through its effects on oxidative stress, cytokines, and apoptotic markers.
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Affiliation(s)
- Weaam Abbas
- Department of Pharmacology & Therapeutics, Faculty of Medicine, University of Kufa, Kufa, Iraq
| | - Murooj Altemimi
- Department of Pharmacology & Therapeutics, Faculty of Medicine, University of Kufa, Kufa, Iraq
| | - Heider Qassam
- Department of Pharmacology & Therapeutics, Faculty of Medicine, University of Kufa, Kufa, Iraq
| | - Ahmed Abdul Hameed
- Department of Pharmacology & Therapeutics, Faculty of Medicine, Jabir Ibn Hayyan Medical University, Najaf, Iraq
| | - Qassim Zigam
- Department of Pharmacology, Al-Mustaqbal University College, Babylon, Hilla, Iraq
| | - Lamaan Abbas
- Al-Sadr Medical City, Al-Najaf Health Directorate, Al-Najaf Al-Ashraf, Iraq
| | - Majid Jabir
- Department of Applied Science, University of Technology, Baghdad, Iraq
| | - Najah Hadi
- Department of Pharmacology & Therapeutics, Faculty of Medicine, University of Kufa, Kufa, Iraq,Corresponding Author: Najah Hadi, Department of Pharmacology & Therapeutics, Faculty of Medicine, University of Kufa, Kufa, Iraq. E-mail: ;
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14
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Nowak G, Megyesi J. γ-Tocotrienol Protects against Mitochondrial Dysfunction, Energy Deficits, Morphological Damage, and Decreases in Renal Functions after Renal Ischemia. Int J Mol Sci 2021; 22:12674. [PMID: 34884479 DOI: 10.3390/ijms222312674] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 11/19/2021] [Accepted: 11/20/2021] [Indexed: 11/16/2022] Open
Abstract
Ischemia-induced mitochondrial dysfunction and ATP depletion in the kidney result in disruption of primary functions and acute injury of the kidney. This study tested whether γ-tocotrienol (GTT), a member of the vitamin E family, protects mitochondrial function, reduces ATP deficits, and improves renal functions and survival after ischemia/reperfusion injury. Vehicle or GTT (200 mg/kg) were administered to mice 12 h before bilateral kidney ischemia, and endpoints were assessed at different timepoints of reperfusion. GTT treatment reduced decreases in state 3 respiration and accelerated recovery of this function after ischemia. GTT prevented decreases in activities of complexes I and III of the respiratory chain, and blocked ischemia-induced decreases in F0F1-ATPase activity and ATP content in renal cortical tissue. GTT improved renal morphology at 72 h after ischemia, reduced numbers of necrotic proximal tubular and inflammatory cells, and enhanced tubular regeneration. GTT treatment ameliorated increases in plasma creatinine levels and accelerated recovery of creatinine levels after ischemia. Lastly, 89% of mice receiving GTT and 70% of those receiving vehicle survived ischemia. Conclusions: Our data show novel observations that GTT administration improves mitochondrial respiration, prevents ATP deficits, promotes tubular regeneration, ameliorates decreases in renal functions, and increases survival after acute kidney injury in mice.
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15
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Deng Y, Li RW, Yang YL, Weiss S, Smith PN. Pharmacological prevention of renal ischemia-reperfusion injury in a rat model. ANZ J Surg 2021; 92:518-525. [PMID: 34820987 DOI: 10.1111/ans.17381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 10/10/2021] [Accepted: 11/08/2021] [Indexed: 11/29/2022]
Abstract
INTRODUCTION Renal ischemia-reperfusion injury (IRI) can lead to significant morbidity and mortality. It remains a leading cause of acute kidney injury and is therefore an important issue in trauma and renal transplant surgery. Various pharmaceutical agents have been used in an attempt to dampen the harmful effects of IRI but few have been shown to be useful clinically. Riluzole, Lidocaine and Lamotrigine have been demonstrated to show anti-ischaemic properties in other organs; however, their use has not been tested in the kidneys. We investigated Riluzole, Lidocaine and Lamotrigine for their preventive effects of renal IRI using a rat model. METHODS Winstar rats (n = 48) were divided into four groups (n = 12 per group)-three treatment groups and one control group. Riluzole, Lidocaine and Lamotrigine were given prior to renal ischemia only (IO) or IRI. The degree of ischemia was measured by glutathione levels and a TUNEL assay was used to measure DNA fragmentation. RESULTS Riluzole, Lidocaine and Lamotrigine pre-treatment each resulted in statistically higher glutathione levels compared to controls (P = 0.002; P = 0.007 and P = 0.005, respectively). Riluzole and Lidocaine were also effective at preventing depletion of glutathione following IO (P = 0.007 and P = 0.014 respectively), while Lamotrigine was ineffective in IO (P = 0.71). The degree of DNA fragmentation seen on the TUNEL assay was markedly reduced in all three-drug groups in both IO and IRI. DISCUSSION Riluzole, Lidocaine and Lamotrigine all have anti-ischaemic effects in the rat kidney and can have potential therapeutic implications.
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Affiliation(s)
- Yi Deng
- Medical School, Australian National University, Canberra, Australian Capital Territory, Australia.,Department of Orthopaedic Surgery, Canberra Hospital, Yamba Drive, Garran, Australian Capital Territory, Australia
| | - Rachel W Li
- Medical School, Australian National University, Canberra, Australian Capital Territory, Australia.,John Curtin School of Medical Research, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Yong Liang Yang
- Department of Orthopaedics, Shandong Provincial Trauma and Orthopaedics Hospital, Jinan, China
| | - Steven Weiss
- John Curtin School of Medical Research, Australian National University, Canberra, Australian Capital Territory, Australia
| | - Paul N Smith
- Medical School, Australian National University, Canberra, Australian Capital Territory, Australia.,Department of Orthopaedic Surgery, Canberra Hospital, Yamba Drive, Garran, Australian Capital Territory, Australia
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16
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Vormann MK, Tool LM, Ohbuchi M, Gijzen L, van Vught R, Hankemeier T, Kiyonaga F, Kawabe T, Goto T, Fujimori A, Vulto P, Lanz HL, Tetsuka K. Modelling and Prevention of Acute Kidney Injury through Ischemia and Reperfusion in a Combined Human Renal Proximal Tubule/Blood Vessel-on-a-Chip. Kidney360 2021; 3:217-231. [PMID: 35373131 PMCID: PMC8967632 DOI: 10.34067/kid.0003622021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 10/29/2021] [Indexed: 01/10/2023]
Abstract
Background Renal ischemia/reperfusion injury (rIRI) is one of the major causes of AKI. Although animal models are suitable for investigating systemic symptoms of AKI, they are limited in translatability. Human in vitro models are crucial in giving mechanistic insights into rIRI; however, they miss out on crucial aspects such as reperfusion injury and the multitissue aspect of AKI. Methods We advanced the current renal proximal tubule-on-a-chip model to a coculture model with a perfused endothelial vessel separated by an extracellular matrix. The coculture was characterized for its three-dimensional structure, protein expression, and response to nephrotoxins. Then, rIRI was captured through control of oxygen levels, nutrient availability, and perfusion flow settings. Injury was quantified through morphologic assessment, caspase-3/7 activation, and cell viability. Results The combination of low oxygen, reduced glucose, and interrupted flow was potent to disturb the proximal tubules. This effect was strongly amplified upon reperfusion. Endothelial vessels were less sensitive to the ischemia-reperfusion parameters. Adenosine treatment showed a protective effect on the disruption of the epithelium and on the caspase-3/7 activation. Conclusions A human in vitro rIRI model was developed using a coculture of a proximal tubule and blood vessel on-a-chip, which was used to characterize the renoprotective effect of adenosine. The robustness of the model and assays in combination with the throughput of the platform make it ideal to advance pathophysiological research and enable the development of novel therapeutic modalities.
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Affiliation(s)
| | | | - Masato Ohbuchi
- Analysis and Pharmacokinetics Research Labs, Astellas Pharma, Inc., Ibaraki, Japan
| | | | | | | | - Fumiko Kiyonaga
- Innovation and Incubation Research Labs, Astellas Pharma, Inc., Ibaraki, Japan
| | | | - Takayuki Goto
- Modality Research Labs, Astellas Pharma, Inc., Ibaraki, Japan
| | - Akira Fujimori
- Research Portfolio Planning, Astellas Pharma, Inc., Ibaraki, Japan
| | | | | | - Kazuhiro Tetsuka
- Analysis and Pharmacokinetics Research Labs, Astellas Pharma, Inc., Ibaraki, Japan
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17
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Verney C, Legouis D, Placier S, Migeon T, Bonnin P, Buob D, Hadchouel J, Galichon P. Anaesthesia-Induced Transcriptomic Changes in the Context of Renal Ischemia Uncovered by the Use of a Novel Clamping Device. Int J Mol Sci 2021; 22:ijms22189840. [PMID: 34576005 PMCID: PMC8464990 DOI: 10.3390/ijms22189840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 09/01/2021] [Accepted: 09/02/2021] [Indexed: 11/16/2022] Open
Abstract
Ischemia is a common cause of acute kidney injury worldwide, frequently occurring in patients undergoing cardiac surgery or admitted to the intensive care unit (ICU). Thus, ischemia-reperfusion injury (IRI) remains one of the main experimental models for the study of kidney diseases. However, the classical technique, based on non-traumatic surgical clamps, suffers from several limitations. It does not allow the induction of multiple episodes of acute kidney injury (AKI) in the same animal, which would be relevant from a human perspective. It also requires a deep and long sedation, raising the question of potential anaesthesia-related biases. We designed a vascular occluding device that can be activated remotely in conscious mice. We first assessed the intensity and the reproducibility of the acute kidney injury induced by this new device. We finally investigated the role played by the anaesthesia in the IRI models at the histological, functional and transcriptomic levels. We showed that this technique allows the rapid induction of renal ischemia in a repeatable and reproducible manner, breaking several classical limitations. In addition, we used its unique specificities to highlight the renal protective effect conferred by the anaesthesia, related to the mitigation of the IRI transcriptomic program.
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Affiliation(s)
- Charles Verney
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, F-75020 Paris, France; (C.V.); (S.P.); (T.M.); (D.B.); (J.H.)
- CoRaKID Unit, Sorbonne Université, F-75020 Paris, France
| | - David Legouis
- Laboratory of Nephrology, Department of Medicine, University Hospitals of Geneva, 1205 Geneva, Switzerland;
- Department of Cell Physiology, Faculty of Medicine, University of Geneva, 1205 Geneva, Switzerland
- Division of Intensive Care, University Hospital of Geneva, 1205 Geneva, Switzerland
| | - Sandrine Placier
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, F-75020 Paris, France; (C.V.); (S.P.); (T.M.); (D.B.); (J.H.)
- CoRaKID Unit, Sorbonne Université, F-75020 Paris, France
| | - Tiffany Migeon
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, F-75020 Paris, France; (C.V.); (S.P.); (T.M.); (D.B.); (J.H.)
- CoRaKID Unit, Sorbonne Université, F-75020 Paris, France
| | - Philippe Bonnin
- INSERM U1148 Laboratory for Vascular Translational Science (LVTS) Hôpital Bichat, F-75018 Paris, France;
- Physiologie Clinique—Explorations Fonctionnelles, Assistance Publique Hôpitaux de Paris (APHP), Lariboisière Hospital, F-75010 Paris, France
| | - David Buob
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, F-75020 Paris, France; (C.V.); (S.P.); (T.M.); (D.B.); (J.H.)
- CoRaKID Unit, Sorbonne Université, F-75020 Paris, France
- Department of Anatomopathology, AP-HP, Tenon Hospital, F-75020 Paris, France
| | - Juliette Hadchouel
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, F-75020 Paris, France; (C.V.); (S.P.); (T.M.); (D.B.); (J.H.)
- CoRaKID Unit, Sorbonne Université, F-75020 Paris, France
| | - Pierre Galichon
- Common and Rare Kidney Diseases (CoRaKID) Unit, Institut National de la Santé and de la Recherche Médicale (INSERM) U1155, F-75020 Paris, France; (C.V.); (S.P.); (T.M.); (D.B.); (J.H.)
- CoRaKID Unit, Sorbonne Université, F-75020 Paris, France
- Surgical and Medical Department of Kidney Transplantation, Assistance Publique–Hôpitaux de Paris (APHP), Pitié-Salpêtrière Hospital, F-75013 Paris, France
- Correspondence:
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18
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Mishima E, Ota H, Suzuki T, Toyohara T, Seiji K, Ito S, Saiki Y, Takase K, Abe T. Apparent Diffusion Coefficient in the Resolution of Renal Ischemia after Angioplasty on Diffusion-weighted Imaging: Renal Artery Stenosis Caused by Progressive Thrombosis in Residual Chronic Aortic Dissection. Intern Med 2020; 59:1173-1177. [PMID: 31956203 PMCID: PMC7270755 DOI: 10.2169/internalmedicine.3855-19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We report a case in which diffusion-weighted magnetic resonance imaging (DWI) demonstrated renal artery stenosis-related renal ischemia and the therapeutic efficacy of revascularization. The patient was a 73-year-old man, who underwent descending thoracic aortic replacement due to DeBakey IIIb chronic aortic dissection, and who showed progressive renal dysfunction due to right renal artery stenosis caused by false lumen thrombosis. DWI demonstrated a decreased apparent diffusion coefficient (ADC) in the right kidney, indicating renal ischemia. Angioplasty with stenting restored renal perfusion and improved the renal function, resulting in the normalization of the decreased ADC in the treated kidney. Thus, DWI can be used to monitor renal ischemia in cases involving advanced renal artery stenosis.
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Affiliation(s)
- Eikan Mishima
- Division of Nephrology, Endocrinology, and Vascular Medicine, Tohoku University Graduate School of Medicine, Japan
| | - Hideki Ota
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Japan
| | - Takehiro Suzuki
- Division of Nephrology, Endocrinology, and Vascular Medicine, Tohoku University Graduate School of Medicine, Japan
| | - Takafumi Toyohara
- Division of Nephrology, Endocrinology, and Vascular Medicine, Tohoku University Graduate School of Medicine, Japan
| | - Kazumasa Seiji
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Japan
| | | | - Yoshikatsu Saiki
- Division of Cardiovascular Surgery, Tohoku University Graduate School of Medicine, Japan
| | - Kei Takase
- Department of Diagnostic Radiology, Tohoku University Graduate School of Medicine, Japan
| | - Takaaki Abe
- Division of Nephrology, Endocrinology, and Vascular Medicine, Tohoku University Graduate School of Medicine, Japan
- Division of Medical Science, Tohoku University Graduate School of Biomedical Engineering, Japan
- Department of Clinical Biology and Hormonal Regulation, Tohoku University Graduate School of Medicine, Japan
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19
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Zhang S, Breidenbach JD, Khalaf FK, Dube PR, Mohammed CJ, Lad A, Stepkowski S, Hinds TD, Kumarasamy S, Kleinhenz A, Tian J, Malhotra D, Kennedy DJ, Cooper CJ, Haller ST. Renal Fibrosis Is Significantly Attenuated Following Targeted Disruption of Cd40 in Experimental Renal Ischemia. J Am Heart Assoc 2020; 9:e014072. [PMID: 32200719 PMCID: PMC7428653 DOI: 10.1161/jaha.119.014072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Renal artery stenosis is a common cause of renal ischemia, contributing to the development of chronic kidney disease. To investigate the role of local CD40 expression in renal artery stenosis, Goldblatt 2‐kidney 1‐clip surgery was performed on hypertensive Dahl salt‐sensitive rats (S rats) and genetically modified S rats in which CD40 function is abolished (Cd40mutant). Methods and Results Four weeks following the 2‐kidney 1‐clip procedure, Cd40mutant rats demonstrated significantly reduced blood pressure and renal fibrosis in the ischemic kidneys compared with S rat controls. Similarly, disruption of Cd40 resulted in reduced 24‐hour urinary protein excretion in Cd40mutant rats versus S rat controls (46.2±1.9 versus 118.4±5.3 mg/24 h; P<0.01), as well as protection from oxidative stress, as indicated by increased paraoxonase activity in Cd40mutant rats versus S rat controls (P<0.01). Ischemic kidneys from Cd40mutant rats demonstrated a significant decrease in gene expression of the profibrotic mediator, plasminogen activator inhibitor‐1 (P<0.05), and the proinflammatory mediators, C‐C motif chemokine ligand 19 (P<0.01), C‐X‐C Motif Chemokine Ligand 9 (P<0.01), and interleukin‐6 receptor (P<0.001), compared with S rat ischemic kidneys, as assessed by quantitative PCR assay. Reciprocal renal transplantation documented that CD40 exclusively expressed in the kidney contributes to ischemia‐induced renal fibrosis. Furthermore, human CD40‐knockout proximal tubule epithelial cells suggested that suppression of CD40 signaling significantly inhibited expression of proinflammatory and ‐fibrotic genes. Conclusions Taken together, our data suggest that activation of CD40 induces a significant proinflammatory and ‐fibrotic response and represents an attractive therapeutic target for treatment of ischemic renal disease.
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Affiliation(s)
- Shungang Zhang
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Joshua D. Breidenbach
- Department of Medical Microbiology and ImmunologyUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Fatimah K. Khalaf
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Prabhatchandra R. Dube
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Chrysan J. Mohammed
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Apurva Lad
- Department of Medical Microbiology and ImmunologyUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Stanislaw Stepkowski
- Department of Medical Microbiology and ImmunologyUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Terry D. Hinds
- Department of Physiology and PharmacologyUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Sivarajan Kumarasamy
- Department of Physiology and PharmacologyUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Andrew Kleinhenz
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Jiang Tian
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Deepak Malhotra
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - David J. Kennedy
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Christopher J. Cooper
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
| | - Steven T. Haller
- Department of MedicineUniversity of Toledo College of Medicine and Life SciencesToledoOH
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20
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Salama AD, Little MA. Coaxing Anti-Inflammatory Granulocytes to Prevent Ischemic Kidney Injury: A Fine Balance. J Am Soc Nephrol 2020; 31:668-670. [PMID: 32149721 DOI: 10.1681/asn.2020020146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Affiliation(s)
- Alan D Salama
- University College London Centre for Nephrology, Royal Free Hospital, London, United Kingdom
| | - Mark A Little
- Trinity Health Kidney Centre, Trinity Translational Medicine Institute, Trinity College Dublin, Saint James's Hospital Campus, Dublin, Ireland
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21
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Nair SM, Power NE, Coleman JA. Examining Mannitol Use in Kidney Cancer Surgery: A Cautionary Tale of Extrapolated Surgical Data. Eur Urol Focus 2019; 5:930-934. [PMID: 31628080 PMCID: PMC8560078 DOI: 10.1016/j.euf.2019.09.021] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2019] [Accepted: 09/30/2019] [Indexed: 11/30/2022]
Abstract
Mannitol for renal protection during partial nephrectomy is common but unsupported by evidence from clinical trials. The impact of mannitol on renal physiology includes both beneficial and harmful effects. Current understanding of renal ischemia reperfusion injury suggests potentially targetable processes that have a lower potential risk.
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Affiliation(s)
- Shiva M Nair
- Urology Division, Department of Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London Health Sciences Centre, London, Ontario, Canada.
| | - Nicholas E Power
- Urology Division, Department of Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London Health Sciences Centre, London, Ontario, Canada
| | - Jonathan A Coleman
- Urology Service, Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
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22
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Moslemi F, Piudeh F, Hajian MR, Khodarahmi A, Nematbakhsh M. Testosterone and Zinc Supplementations on Renal Ischemia-Reperfusion Injury in Orchiectomized Rats. Int J Prev Med 2019; 10:125. [PMID: 31531215 PMCID: PMC6683412 DOI: 10.4103/ijpvm.ijpvm_101_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 04/30/2018] [Indexed: 11/04/2022] Open
Abstract
Background Renal ischemia-reperfusion (IR) injury has numerous deleterious effects on the kidney function. An experimental investigation was conducted to determine the possible protective role of testosterone (TES) and zinc (Zn) supplementations on the kidney function after IR injury in orchiectomized rats. Methods Orchiectomized rats (n = 32) were divided into the five groups as sham operated (Group 1), IR (Group 2), IR pretreatment with TES (IR + TES, Group 3), Zn (IR + Zn, Group 4), and TES + Zn (IR + TES + Zn, Group 5). Twenty-four hours' post-IR injury, the animals were sacrificed and the required parameters were measured. Results The results revealed that there were not any significant difference in serum levels of creatinine (Cr), nitrite and malondialdehyde (MDA), Cr clearance (ClCr), renal sodium (Na) load, and percentage of Na excretion (ENa%) between sham and IR groups. The pretreatment with TES and Zn either alone or combine did not alter the serum levels of Cr, nitrite and MDA, and ClCr, Na load, and ENa%. However, pretreatment with Zn, TES, or combined altered kidney weight, kidney tissue levels of nitrite and MDA, and urine flow in IR groups. Conclusions The orchiectomy itself performed protective effect against renal IR injury. However, pretreatment with Zn or TES may not alter kidney function against renal IR in orchiectomized rats.
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Affiliation(s)
- Fatemeh Moslemi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Farzan Piudeh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mohammad-Reza Hajian
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Amir Khodarahmi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran.,Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran.,Isfahan MN Institute of Basic and Applied Sciences Research, Isfahan, Iran
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23
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Wang S, Kwon SH, Su Y, Dong Z. Stress granules are formed in renal proximal tubular cells during metabolic stress and ischemic injury for cell survival. Am J Physiol Renal Physiol 2019; 317:F116-F123. [PMID: 31091124 DOI: 10.1152/ajprenal.00139.2019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Stress granules (SGs) are a type of cytoplasmic structures formed in eukaryotic cells upon cell stress, which mainly contain RNA-binding proteins and RNAs. The formation of SGs is generally regarded as a mechanism for cells to survive a harsh insult. However, little is known about SG formation and function in kidneys. To address this, we applied different kinds of stressors to cultured proximal tubular cells as well as a short period of ischemia-reperfusion to mouse kidneys. It was found that glycolytic inhibitors such as 2-deoxy-d-glucose and 3-(3-pyridinyl)-1-(4-pyridinyl)-2-propen-1-one induced SG formation within 30 min in these cells. Similarly, SGs were induced by inhibitors of mitochondrial respiration such as sodium azide and CCCP. Renal ischemia-reperfusion induced SG formation in the cells of proximal tubules. To test the role of SGs, we stably knocked down G3bp1, a SG core protein, in renal tubular cells by shRNA viral transduction. As expected, knockdown of G3bp1 largely disrupted the assembly of SGs. After azide or cisplatin treatment, more dead cells were found in knockdown cells compared with controls, accompanied by increases in cleaved/active caspase-3. Reintroduction of exogenous G3bp1 into knockdown cells could rescue the cell death phenotype. Taken together, our data provide the first evidence of SG formation in renal tubular cells during metabolic stress and acute kidney injury. SGs are formed to protect proximal tubular cells under these conditions. Modulation of SG biogenesis may provide a novel approach to lessen the severity of renal diseases.
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Affiliation(s)
- Shixuan Wang
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University , Augusta, Georgia
| | - Sang-Ho Kwon
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University , Augusta, Georgia
| | - Yunchao Su
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, and Charlie Norwood Veterans Affairs Medical Center , Augusta, Georgia
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University , Augusta, Georgia
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24
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Cho SG, Xiao X, Wang S, Gao H, Rafikov R, Black S, Huang S, Ding HF, Yoon Y, Kirken RA, Yin XM, Wang HG, Dong Z. Bif-1 Interacts with Prohibitin-2 to Regulate Mitochondrial Inner Membrane during Cell Stress and Apoptosis. J Am Soc Nephrol 2019; 30:1174-1191. [PMID: 31126972 DOI: 10.1681/asn.2018111117] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Accepted: 03/23/2019] [Indexed: 11/03/2022] Open
Abstract
BACKGROUND Mitochondria are dynamic organelles that undergo fission and fusion. During cell stress, mitochondrial dynamics shift to fission, leading to mitochondrial fragmentation, membrane leakage, and apoptosis. Mitochondrial fragmentation requires the cleavage of both outer and inner membranes, but the mechanism of inner membrane cleavage is unclear. Bif-1 and prohibitin-2 may regulate mitochondrial dynamics. METHODS We used azide-induced ATP depletion to incite cell stress in mouse embryonic fibroblasts and renal proximal tubular cells, and renal ischemia-reperfusion to induce stress in mice. We also used knockout cells and mice to determine the role of Bif-1, and used multiple techniques to analyze the molecular interaction between Bif-1 and prohibitin-2. RESULTS Upon cell stress, Bif-1 translocated to mitochondria to bind prohibitin-2, resulting in the disruption of prohibitin complex and proteolytic inactivation of the inner membrane fusion protein OPA1. Bif-1-deficiency inhibited prohibitin complex disruption, OPA1 proteolysis, mitochondrial fragmentation, and apoptosis. Domain deletion analysis indicated that Bif-1 interacted with prohibitin-2 via its C-terminus. Notably, mutation of Bif-1 at its C-terminal tryptophan-344 not only prevented Bif-1/prohibitin-2 interaction but also reduced prohibitin complex disruption, OPA1 proteolysis, mitochondrial fragmentation, and apoptosis, supporting a pathogenic role of Bif-1/prohibitin-2 interaction. In mice, Bif-1 bound prohibitin-2 during renal ischemia/reperfusion injury, and Bif-1-deficiency protected against OPA1 proteolysis, mitochondrial fragmentation, apoptosis and kidney injury. CONCLUSIONS These findings suggest that during cell stress, Bif-1 regulates mitochondrial inner membrane by interacting with prohibitin-2 to disrupt prohibitin complexes and induce OPA1 proteolysis and inactivation.
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Affiliation(s)
| | - Xiao Xiao
- Department of Cellular Biology and Anatomy
| | | | - Hua Gao
- Department of Cellular Biology and Anatomy
| | | | | | - Shang Huang
- Department of Biochemistry and Molecular Biology
| | | | - Yisang Yoon
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, Georgia
| | - Robert A Kirken
- Department of Biological Sciences, University of Texas at El Paso, El Paso, Texas
| | - Xiao-Ming Yin
- Department of Pathology and Laboratory Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Hong-Gang Wang
- Department of Pharmacology, Pennsylvania State University College of Medicine, Hershey, Pennsylvania; and
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, .,Medical Research Line, Charlie Norwood Veterans Affairs Medical Center, Augusta, Georgia
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25
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Alzahrani FA. Melatonin improves therapeutic potential of mesenchymal stem cells-derived exosomes against renal ischemia-reperfusion injury in rats. Am J Transl Res 2019; 11:2887-2907. [PMID: 31217862 PMCID: PMC6556638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 03/25/2019] [Indexed: 06/09/2023]
Abstract
Renal ischemia-reperfusion injury (RIRI) is one of the main causes for acute kidney injury (AKI). Many previous attempts failed to adopt a suitable treatment regimen for AKI. Recently, combined melatonin (Mel) and mesenchymal stem cell (MSC)-derived exosomes (Exo) therapy gave a promising therapeutic option for acute liver ischemic injury, however this treatment approach has not been tested against RIRI yet. This study tested the hypothesis that administration of exosomes derived from MSCs preconditioned with Mel gave best protection against RIRI as compared to therapy by MSCs or exosomes derived from non-preconditioned MSCs. Female adult rats (n = 60) equally divided into control group, sham group, RIRI group (induced by bilateral renal arteries clamping), RIRI + MSCs group (1 × 106 bone marrow derived MSCs), RIRI + Exo group (250 μg Exo derived from no-preconditioned MSCs), and RIRI + Mel + Exo group (250 μg Exo derived from Mel preconditioned MSCs). MSCs or Exo was bilaterally injected once in each renal artery during reperfusion. The obtained results revealed notable improvement in RIRI following all treatment (MSCs, Exo, and Exo + Mel) with best improvement in Exo + Mel group as evidenced by: 1) decreased kidney injury histopathological score; 2) reduced blood levels of kidney damage markers [blood urea nitrogen (BUN) and creatinine]; 3) declined oxidative stress status (MDA level, HIF1α gene, and NOX2 protein); 4) increased anti-oxidant status (HO1 gene, and SOD, CAT, GPX activities); 5) declined apoptosis (caspase 3 activity and mRNA, and PARP1, Bax genes), 6) induced anti-apoptotic effect (Bcl2 gene); 7) inhibition of inflammation (decreased MPO activity and ICAM1, IL1B, NFkB genes and increased IL10 genes); 8) improved regeneration (bFGF, HGF and SOX9 proteins); and 9) enhanced angiogenesis (VEGF gene). These data indicate that treatment with exosomes derived from MSCs preconditioned with melatonin gave best protective effect against renal ischemia-reperfusion injury as compared to therapy by non-preconditioned MSCs or their exosomes.
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Affiliation(s)
- Faisal A Alzahrani
- Department of Biological Sciences, Rabigh College of Science and Arts, King Abdulaziz University, Jeddah, Rabigh BranchRabigh 21589, Saudi Arabia
- Department of Biochemistry, Faculty of Science, King Abdulaziz UniversityJeddah 21589, Saudi Arabia
- Embryonic Stem Cell Unit, King Fahad Center for Medical Research, King Abdulaziz UniversityJeddah 21589, Saudi Arabia
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26
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Marants R, Qirjazi E, Grant CJ, Lee TY, McIntyre CW. Renal Perfusion during Hemodialysis: Intradialytic Blood Flow Decline and Effects of Dialysate Cooling. J Am Soc Nephrol 2019; 30:1086-1095. [PMID: 31053638 DOI: 10.1681/asn.2018121194] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Accepted: 03/05/2019] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Residual renal function (RRF) confers survival in patients with ESRD but declines after initiating hemodialysis. Previous research shows that dialysate cooling reduces hemodialysis-induced circulatory stress and protects the brain and heart from ischemic injury. Whether hemodialysis-induced circulatory stress affects renal perfusion, and if it can be ameliorated with dialysate cooling to potentially reduce RRF loss, is unknown. METHODS We used renal computed tomography perfusion imaging to scan 29 patients undergoing continuous dialysis under standard (36.5°C dialysate temperature) conditions; we also scanned another 15 patients under both standard and cooled (35.0°C) conditions. Imaging was performed immediately before, 3 hours into, and 15 minutes after hemodialysis sessions. We used perfusion maps to quantify renal perfusion. To provide a reference to another organ vulnerable to hemodialysis-induced ischemic injury, we also used echocardiography to assess intradialytic myocardial stunning. RESULTS During standard hemodialysis, renal perfusion decreased 18.4% (P<0.005) and correlated with myocardial injury (r=-0.33; P<0.05). During sessions with dialysis cooling, patients experienced a 10.6% decrease in perfusion (not significantly different from the decline with standard hemodialysis), and ten of the 15 patients showed improved or no effect on myocardial stunning. CONCLUSIONS This study shows an acute decrease in renal perfusion during hemodialysis, a first step toward pathophysiologic characterization of hemodialysis-mediated RRF decline. Dialysate cooling ameliorated this decline but this effect did not reach statistical significance. Further study is needed to explore the potential of dialysate cooling as a therapeutic approach to slow RRF decline.
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Affiliation(s)
- Raanan Marants
- Department of Medical Biophysics, Western University, London, Canada.,Robarts Research Institute, Western University, London, Canada
| | - Elena Qirjazi
- The Lilibeth Caberto Kidney Clinical Research Unit and
| | - Claire J Grant
- Lawson Health Research Institute, London Health Sciences Centre, London, Canada
| | - Ting-Yim Lee
- Department of Medical Biophysics, Western University, London, Canada.,Robarts Research Institute, Western University, London, Canada.,Lawson Health Research Institute, London Health Sciences Centre, London, Canada
| | - Christopher W McIntyre
- Department of Medical Biophysics, Western University, London, Canada; .,The Lilibeth Caberto Kidney Clinical Research Unit and.,Lawson Health Research Institute, London Health Sciences Centre, London, Canada.,Division of Nephrology, London Health Sciences Centre, London, Canada; and
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27
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Dagenais J, Bertolo R, Garisto J, Chavali J, Kaouk J. "At-risk" kidney: How surgical factors influence renal functional preservation after partial nephrectomy. Int J Urol 2019; 26:565-570. [PMID: 30803075 DOI: 10.1111/iju.13930] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 01/27/2019] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To investigate the influence of surgical modifiable factors on chronic kidney disease upstaging in a contemporary cohort of patients with normal and "at-risk" kidneys undergoing partial nephrectomy. METHODS We reviewed 778 consecutive patients with (n = 634)/without (n = 144) chronic kidney disease or risk factors for chronic kidney disease in our institutional partial nephrectomy database. Chronic kidney disease upstaging was assessed using glomerular filtration rate measurements preoperatively and at 3-12 months postoperatively. Using a multivariate logistic regression, baseline clinicodemographic factors, and the operative measurements of excisional volume loss and warm and cold ischemia time on rates of chronic kidney disease upstaging were determined. Marginal effects were used to analyze the impact of ischemia time and generate interaction curves. RESULTS Chronic kidney disease/risk factors for chronic kidney disease had equivalent rates of chronic kidney disease upstaging as the healthy kidney cohort (31.5% vs 38.2%, P = 0.15). Of the entire cohort, 2.8% were upstaged to stage IV-V chronic kidney disease. Multivariate analysis found a significant association between chronic kidney disease upstaging and excisional volume loss in both cohorts (no chronic kidney disease/risk factors for chronic kidney disease: odds ratio 1.63, P = 0.04; chronic kidney disease/risk factors for chronic kidney disease: odds ratio 1.42, P = 0.001). Only in the chronic kidney disease/risk factors for chronic kidney disease cohort, there was an association between ischemia type/duration and chronic kidney disease upstaging (odds ratio 1.04, P = 0.04). Warm ischemia began to predict an increased risk of chronic kidney disease upstaging at 17.6 min, which became statistically significant at 49 min. CONCLUSIONS Chronic kidney disease upstaging is common after partial nephrectomy. Although volume loss unequivocally affects rates of upstaging irrespective of baseline renal function, warm ischemia time disproportionately influences "at-risk" kidneys. Therefore, strong consideration should be given to minimizing volume loss and using cold ischemia when extended clamp times are anticipated in "at-risk" kidneys.
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Affiliation(s)
- Julien Dagenais
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Riccardo Bertolo
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Juan Garisto
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jaya Chavali
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jihad Kaouk
- Department of Urology, Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio, USA
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Zhou Q, Gong X, Kuang G, Jiang R, Xie T, Tie H, Chen X, Li K, Wan J, Wang B. Ferulic Acid Protected from Kidney Ischemia Reperfusion Injury in Mice: Possible Mechanism Through Increasing Adenosine Generation via HIF-1α. Inflammation 2019; 41:2068-2078. [PMID: 30143933 DOI: 10.1007/s10753-018-0850-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Ferulic acid (FA), derived from fruits and vegetables, is well-known as a potent antioxidant of scavenging free radicals. However, the role and underlying mechanism of FA on kidney ischemia reperfusion (I/R) injury are limited. Here, we explored the effects of FA on kidney I/R injury. The kidney I/R injury models were carried out by clamping bilateral pedicles for 35 min followed by reperfusion for 24 h. Mice were orally pretreated with different doses of FA for three times 24 h before I/R. The renal function was assessed by serum creatine (Scr) and blood urea nitrogen (BUN). Kidney histology was examined by hematoxylin and eosin (HE) staining and terminal deoxynucleotidly transferased UTP nick-end labeling (TUNEL) assay. Proinflammatory cytokines, caspase-3 activity, adenosine generation, adenosine signaling molecules, and hypoxia inducible factor-1 alpha (HIF-1α) were also detected, respectively. The siHIF-1α adenovirus vectors were in vivo used to inhibit the expression of HIF-1α. The results showed that FA significantly attenuated kidney damage in renal I/R-operated mice as indicated by reducing levels of Scr and BUN, ameliorating renal pathological structural changes, and tubular cells apoptosis. Moreover, FA pretreatment inhibited I/R-induced renal proinflammatory cytokines and neutrophils recruitment. Interestingly, the levels of HIF-α, CD39, and CD73 mRNA and protein as well as adenosine production were all significantly increased after FA pretreatment in the kidney of I/R-performed mice, and inhibiting HIF-α expression using siRNA abolished this protection of FA on I/R-induced acute kidney injury as evidenced by more severe renal damage and reduced adenosine production. Our findings indicated that FA protected against kidney I/R injury by reducing apoptosis, alleviating inflammation, increasing adenosine generation, and upregulating CD39 and CD73 expression, which might be mediated by HIF-1α.
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Affiliation(s)
- Qin Zhou
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
- Department of Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Xia Gong
- Department of Anatomy, Chongqing Medical University, Chongqing, 400016, China
| | - Ge Kuang
- Department of Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Rong Jiang
- Laboratory of Stem Cell and Tissue Engineering, Chongqing Medical University, Chongqing, 400016, China
| | - Tianjun Xie
- Department of Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - HongTao Tie
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - XiaHong Chen
- Department of Pharmacology, Chongqing Medical University, Chongqing, 400016, China
| | - Ke Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China
| | - JingYuan Wan
- Department of Pharmacology, Chongqing Medical University, Chongqing, 400016, China.
| | - Bin Wang
- Department of Anesthesiology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China.
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29
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Uwai Y, Suzuki T, Kondo R, Kawasaki T, Nabekura T. Effect of renal ischemia on urinary excretion of lithium in rats. Biopharm Drug Dispos 2018; 39:448-451. [PMID: 30393876 DOI: 10.1002/bdd.2163] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 10/12/2018] [Accepted: 10/20/2018] [Indexed: 11/11/2022]
Abstract
Lithium, administered to patients with bipolar disorders, is mainly excreted in the urine, and tubular reabsorption is involved. This study characterized the renal excretion of lithium in rats subjected to renal ischemia for 60 min or 90 min. After intravenous injection of lithium chloride at 25 mg/kg, the pharmacokinetic parameters of lithium were determined. In sham-operated rats, the renal clearance of lithium was calculated to be 1.49 ml/min/kg, and its ratio to creatinine clearance (fractional excretion) was 43.4%. Renal ischemia inhibited the renal excretion of lithium, and did not affect its fractional excretion. The urinary pH of rats with renal ischemia for 90 min was significantly higher than those of the other groups, and the linear regression with the fractional excretion of lithium in rats with renal ischemia showed a moderate correlation (r = 0.650, p = 0.00193). This study demonstrated the effect of renal ischemia on the renal excretion of lithium in rats. It was suggested that not only glomerular filtration but also the reabsorption of lithium was impaired by renal ischemia.
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Affiliation(s)
- Yuichi Uwai
- Department of Pharmaceutics, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
| | - Takato Suzuki
- Department of Pharmaceutics, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
| | - Ryota Kondo
- Department of Pharmaceutics, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
| | - Tatsuya Kawasaki
- Department of Pharmaceutics, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
| | - Tomohiro Nabekura
- Department of Pharmaceutics, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
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30
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Abstract
AKI is a major cause of morbidity and mortality and an important contributor to the development and progression of CKD. Molecular biomarkers that improve the detection and prognostication of AKI are therefore required. We assessed the utility as such of BPI fold-containing family A member 2 (BPIFA2), also known as parotid secretory protein, which we identified via a multiplex quantitative proteomics screen of acutely injured murine kidneys. In physiologic conditions, BPIFA2 is expressed specifically in the parotid glands and is abundant in salivary secretions. In our study, AKI induced Bpifa2 expression in the kidneys of mice within 3 hours. Furthermore, we detected BPIFA2 protein in plasma and urine in these models as early as 6 hours after injury. However, renal injury did not induce the expression of Bpifa2 in mice lacking Nur77, an immediate early gene expressed in the kidneys during AKI. Notably, patients with AKI had higher blood and urine levels of BPIFA2 than did healthy individuals. Together, our results reveal that BPIFA2 is a potential early biomarker of AKI.
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Affiliation(s)
- Satya K Kota
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Harvard University, Boston, Massachusetts
- Harvard Stem Cell Institute, Cambridge, Massachusetts
| | | | - David E Leaf
- Division of Renal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Isaac E Stillman
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts; and
| | - Sushrut S Waikar
- Division of Renal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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31
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Kota SK, Pernicone E, Leaf DE, Stillman IE, Waikar SS, Kota SB. BPI Fold-Containing Family A Member 2/Parotid Secretory Protein Is an Early Biomarker of AKI. J Am Soc Nephrol 2017; 28:3473-3478. [PMID: 28775000 DOI: 10.1681/asn.2016121265] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 06/06/2017] [Indexed: 12/19/2022] Open
Abstract
AKI is a major cause of morbidity and mortality and an important contributor to the development and progression of CKD. Molecular biomarkers that improve the detection and prognostication of AKI are therefore required. We assessed the utility as such of BPI fold-containing family A member 2 (BPIFA2), also known as parotid secretory protein, which we identified via a multiplex quantitative proteomics screen of acutely injured murine kidneys. In physiologic conditions, BPIFA2 is expressed specifically in the parotid glands and is abundant in salivary secretions. In our study, AKI induced Bpifa2 expression in the kidneys of mice within 3 hours. Furthermore, we detected BPIFA2 protein in plasma and urine in these models as early as 6 hours after injury. However, renal injury did not induce the expression of Bpifa2 in mice lacking Nur77, an immediate early gene expressed in the kidneys during AKI. Notably, patients with AKI had higher blood and urine levels of BPIFA2 than did healthy individuals. Together, our results reveal that BPIFA2 is a potential early biomarker of AKI.
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Affiliation(s)
- Satya K Kota
- Department of Oral Medicine, Infection and Immunity, Harvard School of Dental Medicine, Harvard University, Boston, Massachusetts.,Harvard Stem Cell Institute, Cambridge, Massachusetts
| | | | - David E Leaf
- Division of Renal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | - Isaac E Stillman
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts; and
| | - Sushrut S Waikar
- Division of Renal Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
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32
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Madjarov JM, Katz MG, Crespo-Soto H, Madzharov S, Roush T, Robicsek F. Successful Repair of Acute Type B and Retrograde Type A Aortic Dissection With Kidney Ischemia. Vasc Endovascular Surg 2017; 51:342-345. [PMID: 28514894 DOI: 10.1177/1538574417708133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Acute dissection of thoracic aorta carries a risk of renal ischemia followed by the development of a kidney failure. The optimal surgical and nonsurgical management of these patients, timing of intervention, and the factors predicting renal recovery are not well delineated and remain controversial. We present a case of acute type B thoracic aortic dissection with left kidney ischemia. Evaluation of renal function was performed by the means of internationally accepted Risk, Injury, Failure, Loss of kidney function, End stage kidney disease and Acute Kidney Injury Network classifications for acute kidney injury, renal duplex sonography, and intravascular ultrasound that demonstrated left renal artery dissection with a flap completely compressing the true lumen. The patient underwent thoracic endovascular aortic repair and left renal artery stent and recovered well. Six months later, at the follow-up visit, retrograde type A aortic dissection was found, which was successfully repaired. Reversal of renal ischemia after aortic dissection depends on the precise assessment of renal function and prompt intervention.
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Affiliation(s)
- Jeko M Madjarov
- 1 Department of Cardiovascular Surgery, Sanger Heart & Vascular Institute, Charlotte, NC, USA
| | - Michael G Katz
- 2 Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hector Crespo-Soto
- 1 Department of Cardiovascular Surgery, Sanger Heart & Vascular Institute, Charlotte, NC, USA
| | - Svetozar Madzharov
- 1 Department of Cardiovascular Surgery, Sanger Heart & Vascular Institute, Charlotte, NC, USA
| | - Timothy Roush
- 1 Department of Cardiovascular Surgery, Sanger Heart & Vascular Institute, Charlotte, NC, USA
| | - Francis Robicsek
- 1 Department of Cardiovascular Surgery, Sanger Heart & Vascular Institute, Charlotte, NC, USA
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33
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McCurley A, Alimperti S, Campos-Bilderback SB, Sandoval RM, Calvino JE, Reynolds TL, Quigley C, Mugford JW, Polacheck WJ, Gomez IG, Dovey J, Marsh G, Huang A, Qian F, Weinreb PH, Dolinski BM, Moore S, Duffield JS, Chen CS, Molitoris BA, Violette SM, Crackower MA. Inhibition of αv β5 Integrin Attenuates Vascular Permeability and Protects against Renal Ischemia-Reperfusion Injury. J Am Soc Nephrol 2017; 28:1741-1752. [PMID: 28062569 DOI: 10.1681/asn.2016020200] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 11/22/2016] [Indexed: 01/28/2023] Open
Abstract
Ischemia-reperfusion injury (IRI) is a leading cause of AKI. This common clinical complication lacks effective therapies and can lead to the development of CKD. The αvβ5 integrin may have an important role in acute injury, including septic shock and acute lung injury. To examine its function in AKI, we utilized a specific function-blocking antibody to inhibit αvβ5 in a rat model of renal IRI. Pretreatment with this anti-αvβ5 antibody significantly reduced serum creatinine levels, diminished renal damage detected by histopathologic evaluation, and decreased levels of injury biomarkers. Notably, therapeutic treatment with the αvβ5 antibody 8 hours after IRI also provided protection from injury. Global gene expression profiling of post-ischemic kidneys showed that αvβ5 inhibition affected established injury markers and induced pathway alterations previously shown to be protective. Intravital imaging of post-ischemic kidneys revealed reduced vascular leak with αvβ5 antibody treatment. Immunostaining for αvβ5 in the kidney detected evident expression in perivascular cells, with negligible expression in the endothelium. Studies in a three-dimensional microfluidics system identified a pericyte-dependent role for αvβ5 in modulating vascular leak. Additional studies showed αvβ5 functions in the adhesion and migration of kidney pericytes in vitro Initial studies monitoring renal blood flow after IRI did not find significant effects with αvβ5 inhibition; however, future studies should explore the contribution of vasomotor effects. These studies identify a role for αvβ5 in modulating injury-induced renal vascular leak, possibly through effects on pericyte adhesion and migration, and reveal αvβ5 inhibition as a promising therapeutic strategy for AKI.
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Affiliation(s)
| | - Stella Alimperti
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts.,The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts
| | - Silvia B Campos-Bilderback
- Indiana University School of Medicine, The Roudebush Veterans Affair Medical Center, Indiana Center for Biological Microscopy, Indianapolis, Indiana; and
| | - Ruben M Sandoval
- Indiana University School of Medicine, The Roudebush Veterans Affair Medical Center, Indiana Center for Biological Microscopy, Indianapolis, Indiana; and
| | | | | | | | | | - William J Polacheck
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts.,The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts
| | | | | | | | | | - Fang Qian
- Biogen Inc., Cambridge, Massachusetts
| | | | | | | | | | - Christopher S Chen
- Department of Biomedical Engineering, Boston University, Boston, Massachusetts.,The Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, Massachusetts
| | - Bruce A Molitoris
- Indiana University School of Medicine, The Roudebush Veterans Affair Medical Center, Indiana Center for Biological Microscopy, Indianapolis, Indiana; and.,Department of Cellular and Integrative Physiology, Indiana University School of Medicine, Indianapolis, Indiana
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Xu K, Rosenstiel P, Paragas N, Hinze C, Gao X, Huai Shen T, Werth M, Forster C, Deng R, Bruck E, Boles RW, Tornato A, Gopal T, Jones M, Konig J, Stauber J, D'Agati V, Erdjument-Bromage H, Saggi S, Wagener G, Schmidt-Ott KM, Tatonetti N, Tempst P, Oliver JA, Guarnieri P, Barasch J. Unique Transcriptional Programs Identify Subtypes of AKI. J Am Soc Nephrol 2016; 28:1729-1740. [PMID: 28028135 DOI: 10.1681/asn.2016090974] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 11/12/2016] [Indexed: 01/07/2023] Open
Abstract
Two metrics, a rise in serum creatinine concentration and a decrease in urine output, are considered tantamount to the injury of the kidney tubule and the epithelial cells thereof (AKI). Yet neither criterion emphasizes the etiology or the pathogenetic heterogeneity of acute decreases in kidney excretory function. In fact, whether decreased excretory function due to contraction of the extracellular fluid volume (vAKI) or due to intrinsic kidney injury (iAKI) actually share pathogenesis and should be aggregated in the same diagnostic group remains an open question. To examine this possibility, we created mouse models of iAKI and vAKI that induced a similar increase in serum creatinine concentration. Using laser microdissection to isolate specific domains of the kidney, followed by RNA sequencing, we found that thousands of genes responded specifically to iAKI or to vAKI, but very few responded to both stimuli. In fact, the activated gene sets comprised different, functionally unrelated signal transduction pathways and were expressed in different regions of the kidney. Moreover, we identified distinctive gene expression patterns in human urine as potential biomarkers of either iAKI or vAKI, but not both. Hence, iAKI and vAKI are biologically unrelated, suggesting that molecular analysis should clarify our current definitions of acute changes in kidney excretory function.
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Affiliation(s)
- Katherine Xu
- Departments of *Medicine, Division of Nephrology
| | | | - Neal Paragas
- Department of Medicine, Division of Nephrology, University of Washington, Seattle, Washington
| | | | - Xiaobo Gao
- Department of Medicine, Division of Nephrology, Icahn School of Medicine at Mount Sinai, New York, New York
| | | | - Max Werth
- Departments of *Medicine, Division of Nephrology
| | - Catherine Forster
- Department of Pediatrics, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Rong Deng
- Departments of *Medicine, Division of Nephrology
| | - Efrat Bruck
- Departments of *Medicine, Division of Nephrology
| | | | | | | | | | - Justin Konig
- Departments of *Medicine, Division of Nephrology
| | | | | | - Hediye Erdjument-Bromage
- Department of Biochemistry and Molecular Pharmacology, New York University Langone Medical Center, New York, New York
| | - Subodh Saggi
- Department of Medicine, State University of New York Downstate Medical Center, Brooklyn, New York
| | | | | | | | - Paul Tempst
- Memorial Sloan Kettering Cancer Center, New York, New York
| | | | - Paolo Guarnieri
- Systems Biology, Columbia University Medical Center, New York, New York;
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35
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Reuter DG, Law Y, Levy WC, Seslar SP, Zierler RE, Ferguson M, Chattra J, McQuinn T, Liu LL, Terry M, Coffey PS, Dimer JA, Hanevold C, Flynn JT, Stapleton FB. Can preeclampsia be considered a renal compartment syndrome? A hypothesis and analysis of the literature. ACTA ACUST UNITED AC 2016; 10:891-899. [PMID: 27751879 DOI: 10.1016/j.jash.2016.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 08/31/2016] [Accepted: 09/06/2016] [Indexed: 10/21/2022]
Abstract
The morbidity and mortality associated with preeclampsia is staggering. The physiology of the Page kidney, a condition in which increased intrarenal pressure causes hypertension, appears to provide a unifying framework to explain the complex pathophysiology. Page kidney hypertension is renin-mediated acutely and ischemia-mediated chronically. Renal venous outflow obstruction also causes a Page kidney phenomenon, providing a hypothesis for the increased vulnerability of a subset of women who have what we are hypothesizing is a "renal compartment syndrome" due to inadequate ipsilateral collateral renal venous circulation consistent with well-known variation in normal venous anatomy. Dynamic changes in renal venous anatomy and physiology in pregnancy appear to correlate with disease onset, severity, and recurrence. Since maternal recumbent position is well known to affect renal perfusion and since chronic outflow obstruction makes women vulnerable to the ischemic/inflammatory sequelae, heightened awareness of renal compartment syndrome physiology is critical. The anatomic and physiologic insights provide immediate strategies to predict and prevent preeclampsia with straightforward, low-cost interventions that make renewed global advocacy for pregnant women a realistic goal.
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Affiliation(s)
- David G Reuter
- Department of Pediatrics, Division of Cardiology, Seattle Children's Hospital, Seattle, WA; General Pediatrics, Allegro Pediatrics, Bellevue, WA.
| | - Yuk Law
- Department of Pediatrics, Division of Cardiology, Seattle Children's Hospital, Seattle, WA
| | - Wayne C Levy
- Division of Cardiology, University of Washington School of Medicine, Seattle, WA
| | - Stephen P Seslar
- Department of Pediatrics, Division of Cardiology, Seattle Children's Hospital, Seattle, WA
| | - R Eugene Zierler
- Division of Vascular Surgery, University of Washington School of Medicine, Seattle, WA
| | - Mark Ferguson
- Department of Radiology, Seattle Children's Hospital, Seattle, WA
| | - James Chattra
- General Pediatrics, Allegro Pediatrics, Bellevue, WA
| | - Tim McQuinn
- Department of Pediatrics, Division of Cardiology, Seattle Children's Hospital, Seattle, WA
| | - Lenna L Liu
- Division of General Pediatrics, University of Washington School of Medicine, Seattle, WA
| | - Mark Terry
- Science Department, The Northwest School, Seattle, WA
| | | | - Jane A Dimer
- Division of Obstetrics, University of Washington School of Medicine, Seattle, WA
| | - Coral Hanevold
- Department of Nephrology, Seattle Children's Hospital, Seattle, WA
| | - Joseph T Flynn
- Department of Nephrology, Seattle Children's Hospital, Seattle, WA
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36
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Jackson EK, Menshikova EV, Mi Z, Verrier JD, Bansal R, Janesko-Feldman K, Jackson TC, Kochanek PM. Renal 2',3'-Cyclic Nucleotide 3'-Phosphodiesterase Is an Important Determinant of AKI Severity after Ischemia-Reperfusion. J Am Soc Nephrol 2015; 27:2069-81. [PMID: 26574047 DOI: 10.1681/asn.2015040397] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Accepted: 10/07/2015] [Indexed: 12/31/2022] Open
Abstract
A positional isomer of 3',5'-cAMP, 2',3'-cAMP, is produced by kidneys in response to energy depletion, and renal 2',3'-cyclic nucleotide 3'-phosphodiesterase (CNPase) metabolizes 2',3'-cAMP to 2'-AMP; 2',3'-cAMP is a potent opener of mitochondrial permeability transition pores (mPTPs), which can stimulate autophagy. Because autophagy protects against AKI, it is conceivable that inhibition of CNPase protects against ischemia-reperfusion (IR) -induced AKI. Therefore, we investigated renal outcomes, mitochondrial function, number, area, and autophagy in CNPase-knockout (CNPase(-/-)) versus wild-type (WT) mice using a unique two-kidney, hanging-weight model of renal bilateral IR (20 minutes of ischemia followed by 48 hours of reperfusion). Analysis of urinary purines showed attenuated metabolism of 2',3'-cAMP to 2'-AMP in CNPase(-/-) mice. Neither genotype nor IR affected BP, heart rate, urine volume, or albumin excretion. In WT mice, renal IR reduced (14)C-inulin clearance (index of GFR) and increased renal vascular resistance (measured by transit time nanoprobes) and urinary excretion of kidney injury molecule-1 and neutrophil gelatinase-associated lipocalin. IR did not affect these parameters in CNPase(-/-) mice. Histologic analysis revealed that IR induced severe damage in kidneys from WT mice, whereas histologic changes were minimal after IR in CNPase(-/-) mice. Measurements of renal cardiolipin levels, citrate synthase activity, rotenone-sensitive NADH oxidase activity, and proximal tubular mitochondrial and autophagosome area and number (by transmission electron microscopy) indicted accelerated autophagy/mitophagy in injured CNPase(-/-) mice. We conclude that CNPase deletion attenuates IR-induced AKI, in part by accelerating autophagy with targeted removal of damaged mitochondria.
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Affiliation(s)
- Edwin K Jackson
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania;
| | - Elizabeth V Menshikova
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Zaichuan Mi
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Jonathan D Verrier
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Rashmi Bansal
- Department of Neuroscience, University of Connecticut School of Medicine, Farmington, Connecticut; and
| | - Keri Janesko-Feldman
- Safar Center for Resuscitation Research and Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Travis C Jackson
- Safar Center for Resuscitation Research and Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Patrick M Kochanek
- Safar Center for Resuscitation Research and Department of Critical Care Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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Abstract
Renal artery stenosis is the main cause of renovascular hypertension and results in ischemic nephropathy characterized by inflammation, oxidative stress, microvascular loss, and fibrosis with consequent functional failure. Considering the limited number of strategies that effectively control renovascular hypertension and restore renal function, we propose that cell therapy may be a promising option based on the regenerative and immunosuppressive properties of stem cells. This review addresses the effects of mesenchymal stem cells (MSC) in an experimental animal model of renovascular hypertension known as 2 kidney-1 clip (2K-1C). Significant benefits of MSC treatment have been observed on blood pressure and renal structure of the stenotic kidney. The mechanisms involved are discussed.
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Affiliation(s)
| | - Mirian A Boim
- Nephrology Division, Federal University of São Paulo, São Paulo, Brazil
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38
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Ghasemi M, Nematbakhsh M, Daneshmand F, Moeini M, Talebi A. Role of nitric oxide in kidney and liver (as distance organ) function in bilateral renal ischemia-reperfusion: Effect of L-Arginine and NG-nitro-L-Arginine methyl ester. Adv Biomed Res 2015; 4:233. [PMID: 26645018 PMCID: PMC4647128 DOI: 10.4103/2277-9175.167954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2015] [Accepted: 07/04/2015] [Indexed: 11/27/2022] Open
Abstract
Background: Renal ischemia-reperfusion (RIR) is a major cause of renal dysfunction that acts through different mechanisms. We investigated the role of L-Arginine as an endogenous nitric oxide (NO) precursor and NG-nitro-L-Arginine methyl ester (L-NAME) as an NO inhibitor on kidney and liver function in RIR model. Materials and Methods: Fifty-eight Wistar rats were randomly assigned to four groups. Groups 1 (sham-operated, n = 13) received a single dose of saline (4 ml/kg, i.p.) and 2 (Ischemia [Isch], n = 14) received a single dose of saline (4 ml/kg, i.p.). Groups 3 (Isch + L-NAME, n = 15) received a single dose of L-NAME (20 mg/kg, i.p.) and 4 (Isch + L-Arginine n = 16) received a single dose of L-Arginine (300 mg/kg, i.p.), After 2 h, renal failure was induced by clamping both renal pedicles for 45 min, followed by 24-h reperfusion in Groups 2–4. Finally, blood samples were obtained, and kidney tissue samples were subjected for pathology investigations. Results: The body weight decreased, and the serum levels of blood urea nitrogen (BUN) and creatinine (Cr), and kidney tissue damage score (KTDS) increased significantly in the Isch and Isch + L-NAME groups compared with the sham group while L-Arginine improved weight reduction (P < 0.05), and it reduced the serum levels of BUN and Cr, and KTDS when compared with the Isch and Isch + L-NAME groups. Kidney weight increased significantly in all groups compared with the sham group. L-Arginine reduced the liver tissue level of malondialdehyde and increased alkaline phosphatase. Conclusion: L-Arginine as an NO precursor can improve kidney function against RIR. It also improves oxidative stress in liver tissue.
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Affiliation(s)
- Mahmood Ghasemi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Biology, Taft Payam-Noor University, Taft, Iran
| | - Mehdi Nematbakhsh
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Physiology, Isfahan University of Medical Sciences, Isfahan, Iran ; Isfahan MN Institute of Basic and Applied Sciences Research, Isfahan University of Medical Sciences, Isfahan, Iran
| | | | - Maryam Moeini
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Ardeshir Talebi
- Water and Electrolytes Research Center, Isfahan University of Medical Sciences, Isfahan, Iran ; Department of Clinical Pathology, Isfahan University of Medical Sciences, Isfahan, Iran
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Xiao L, Zhou D, Tan RJ, Fu H, Zhou L, Hou FF, Liu Y. Sustained Activation of Wnt/β-Catenin Signaling Drives AKI to CKD Progression. J Am Soc Nephrol 2015; 27:1727-40. [PMID: 26453613 DOI: 10.1681/asn.2015040449] [Citation(s) in RCA: 182] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 08/22/2015] [Indexed: 12/20/2022] Open
Abstract
AKI is increasingly recognized as a major risk factor for progression to CKD. However, the factors governing AKI to CKD progression are poorly understood. In this study, we investigated this issue using moderate (20 minutes) and severe (30 minutes) ischemia/reperfusion injury (IRI) in mice. Moderate IRI led to acute kidney failure and transient Wnt/β-catenin activation, which was followed by the restoration of kidney morphology and function. However, severe IRI resulted in sustained and exaggerated Wnt/β-catenin activation, which was accompanied by development of renal fibrotic lesions characterized by interstitial myofibroblast activation and excessive extracellular matrix deposition. To assess the role of sustained Wnt/β-catenin signaling in mediating AKI to CKD progression, we manipulated this signaling by overexpression of Wnt ligand or pharmacologic inhibition of β-catenin. In vivo, overexpression of Wnt1 at 5 days after IRI induced β-catenin activation and accelerated AKI to CKD progression. Conversely, blockade of Wnt/β-catenin by small molecule inhibitor ICG-001 at this point hindered AKI to CKD progression. In vitro, Wnt ligands induced renal interstitial fibroblast activation and promoted fibronectin expression. However, activated fibroblasts readily reverted to a quiescent phenotype after Wnt ligands were removed, suggesting that fibroblast activation requires persistent Wnt signaling. These results indicate that sustained, but not transient, activation of Wnt/β-catenin signaling has a decisive role in driving AKI to CKD progression.
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Affiliation(s)
- Liangxiang Xiao
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China; and Departments of Pathology and
| | | | - Roderick J Tan
- Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | | | - Lili Zhou
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China; and
| | - Fan Fan Hou
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China; and
| | - Youhua Liu
- State Key Laboratory of Organ Failure Research, National Clinical Research Center of Kidney Disease, Nanfang Hospital, Southern Medical University, Guangzhou, China; and Departments of Pathology and
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40
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Abstract
Early stage of vascular disease and diabetic kidney disease (DKD stages 1 and 2) has been under-recognized, under common practice worldwide. The lack of sensitive diagnostic marker leads to late diagnosis and a progression of underlying vascular disease associated with chronic renal ischemia, which eventually intensifies the magnitude of DKD damage. Treatment at this late stage fails to correct the renal ischemia, or restore renal function, due to the altered vascular homeostasis associated with an impaired nitric oxide production. In contrast to the above information, early recognition of vascular disease and DKD with sensitive diagnostic markers would be able to implement an effective prevention of progression of vascular disease and DKD. Treatment at early stage under environment favorable for adequate vascular homeostasis is able to correct the renal ischemia and improve the renal function.
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Affiliation(s)
- Narisa Futrakul
- a Renal Microvascular Research Group, Department of Physiology, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University , Bangkok , Thailand
| | - Ankanee Chanakul
- b Department of Pediatrics , King Chulalongkorn Memorial Hospital, Chulalongkorn University , Bangkok , Thailand , and
| | - Prasit Futrakul
- c Bhumirajanagarindra Kidney Institute, and Academy of Science, The Royal Institute of Thailand , Bangkok , Thailand
| | - Tawatchai Deekajorndech
- b Department of Pediatrics , King Chulalongkorn Memorial Hospital, Chulalongkorn University , Bangkok , Thailand , and
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41
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Pektaş A, Gemalmaz H, Balkaya M, Ünsal C, Yenisey Ç, Kılıçarslan N, Çulhacı N. The short-term protective effects of lycopene on renal ischemia-reperfusion injury in rats. Turk J Urol 2015; 40:46-51. [PMID: 26328145 DOI: 10.5152/tud.2014.53765] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Accepted: 11/04/2013] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Renal ischemia-reperfusion injury may occur due to nephron-sparing surgery in patients with a solitary kidney or restricted renal parenchymas. Prophylactic agents do not always achieve their intended effects and may exhibit side effects. The present study was designed to investigate the possible protective effects of lycopene against hypoxia-induced renal damage. MATERIAL AND METHODS Twelve Wistar rats were used in the study. Female Wistar rats were divided into two groups of six rats each; the first group served as the control, and the second group was treated for two days with oral lycopene (4 mg/kg per day) before surgery. All Wistar rats were subjected to right nephrectomy and abdominal aorta clamping for 45 minutes to induce ischemia, followed by 24 hours of reperfusion. Blood samples were collected from all rats twice before surgery and 24-hours after surgery for analyses of serum urea, creatinine, sodium, and potassium levels. Left nephrectomies were performed following reperfusion. Then histopathological scores were estimated, and malondialdehyde (MDA), catalase (CAT), superoxide dismutase (SOD), glutathione (GSH), and glutathione peroxidase (GSH-Px) levels in renal tissue samples were measured, and compared between groups. RESULTS There were no significant differences between the control, and the lycopene group with respect to postischemic urea, creatinine, or potassium levels. A significant difference between the groups was observed with respect to postischemic sodium levels (p=0.028). Pathological scores were higher in the control group than in the lycopene group (p<0.05). Mean tissue MDA levels in the control group were higher than in the lycopene group (p=0.055). The mean tissue GSH-Px levels were similar in the control, and lycopene groups. The mean GSH levels in the control group were higher than in the lycopene group (p>0.05). The mean tissue SOD levels were similar in the control, and lycopene groups. The mean CAT levels in the control group were higher than in the lycopene group (p>0.05). CONCLUSION Lycopene may have a protective effect on the short-term biochemical and histopathological parameters following renal ischemia/perfusion injury.
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Affiliation(s)
- Abdulkadir Pektaş
- Department of Urology, Faculty of Medicine, Adnan Menderes University, Aydın, Turkey
| | - Hakan Gemalmaz
- Department of Urology, Faculty of Medicine, Adnan Menderes University, Aydın, Turkey
| | - Muharrem Balkaya
- Department of Physiology, Faculty of Veterinary, Adnan Menderes University, Aydın, Turkey
| | - Cengiz Ünsal
- Department of Physiology, Faculty of Veterinary, Adnan Menderes University, Aydın, Turkey
| | - Çiğdem Yenisey
- Department of Biochemistry, Faculty of Medicine, Adnan Menderes University, Aydın, Turkey
| | - Naciye Kılıçarslan
- Department of Biochemistry, Faculty of Medicine, Adnan Menderes University, Aydın, Turkey
| | - Nil Çulhacı
- Department of Pathology, Faculty of Medicine, Adnan Menderes Unıversity, Aydın, Turkey
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Szebényi K, Füredi A, Kolacsek O, Csohány R, Prókai Á, Kis-Petik K, Szabó A, Bősze Z, Bender B, Tóvári J, Enyedi Á, Orbán TI, Apáti Á, Sarkadi B. Visualization of Calcium Dynamics in Kidney Proximal Tubules. J Am Soc Nephrol 2015; 26:2731-40. [PMID: 25788535 DOI: 10.1681/asn.2014070705] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 01/08/2015] [Indexed: 12/28/2022] Open
Abstract
Intrarenal changes in cytoplasmic calcium levels have a key role in determining pathologic and pharmacologic responses in major kidney diseases. However, cell-specific delivery of calcium-sensitive probes in vivo remains problematic. We generated a transgenic rat stably expressing the green fluorescent protein-calmodulin-based genetically encoded calcium indicator (GCaMP2) predominantly in the kidney proximal tubules. The transposon-based method used allowed the generation of homozygous transgenic rats containing one copy of the transgene per allele with a defined insertion pattern, without genetic or phenotypic alterations. We applied in vitro confocal and in vivo two-photon microscopy to examine basal calcium levels and ligand- and drug-induced alterations in these levels in proximal tubular epithelial cells. Notably, renal ischemia induced a transient increase in cellular calcium, and reperfusion resulted in a secondary calcium load, which was significantly decreased by systemic administration of specific blockers of the angiotensin receptor and the Na-Ca exchanger. The parallel examination of in vivo cellular calcium dynamics and renal circulation by fluorescent probes opens new possibilities for physiologic and pharmacologic investigations.
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Affiliation(s)
- Kornélia Szebényi
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - András Füredi
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Orsolya Kolacsek
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | | | | | - Katalin Kis-Petik
- Department of Biophysics and Radiation Biology, MTA-SE Molecular Biophysics Research Group, and
| | - Attila Szabó
- MTA-SE, Pediatrics and Nephrology Research Group, Budapest, Hungary
| | | | | | - József Tóvári
- Department of Experimental Pharmacology, National Institute of Oncology, Budapest, Hungary
| | - Ágnes Enyedi
- Second Department of Pathology, Semmelweis University, Budapest, Hungary
| | - Tamás I Orbán
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary
| | - Ágota Apáti
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary;
| | - Balázs Sarkadi
- Institute of Enzymology, Research Centre for Natural Sciences, Hungarian Academy of Sciences, Budapest, Hungary; Department of Biophysics and Radiation Biology, MTA-SE Molecular Biophysics Research Group, and
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Abstract
Recent studies have reported that remote organs are affected by renal ischemia reperfusion (IR). The present study investigates the role of vitamin E on the liver damage after renal IR. First, male mice were subjected to three groups (n = 9): 1) sham-operated, (2) renal IR (45 min ischemia), (3) renal IR + Vitamin E (150 mg/kg trough feeding tube for 28 d). After 24 h of reperfusion, animal were anesthetized for sample collections. Liver tissues malondialdehyde (MDA) increased and total glutathione (GSH) concentration decreased in the IR group compared to the sham group. Vitamin E consumption diminished the IR-induced increase in plasma AST and ALT. In addition, Vitamin E inhibited the IR-induced decrease in GSH activity and diminished IR-induced increase in MDA concentration. These findings showed that vitamin E consumption partly inhibited the IR-induced liver damage.
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Affiliation(s)
- Hossein Khastar
- School of Medicine, Shahroud University of Medical Sciences , Shahroud , Iran
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Silberstein JL, Sprenkle PC, Su D, Power NE, Tarin TV, Ezell P, Sjoberg DD, Feifer A, Fleisher M, Russo P, Touijer KA. Neutrophil gelatinase-associated lipocalin (NGAL) levels in response to unilateral renal ischaemia in a novel pilot two-kidney porcine model. BJU Int 2013; 112:517-25. [PMID: 23510358 DOI: 10.1111/bju.12066] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVES To test a novel porcine two-kidney model for evaluating the effect of controlled acute kidney injury (AKI) related to induced unilateral ischaemia on both renal units (RUs) To use neutrophil gelatinase-associated lipocalin (NGAL) and physiological serum and urinary markers to assess AKI and renal function. METHODS Twelve female Yorkshire pigs had bilateral cutaneous ureterostomies placed laparoscopically with identical duration of pneumoperitoneum for all cases. An experimental group (n = 9) underwent induced unilateral renal ischaemia with left hilar clamping of timed duration (15, 30, 60 min) and a control group (n = 3) had no induced renal ischaemia. Urine was collected and analysed from each RU to assess creatinine and NGAL concentration preoperatively and at multiple postoperative time points. Serum was collected and analysed daily for creatinine and NGAL levels. Statistical comparisons were made using the rank-sum and sign-rank tests. RESULTS Three pigs were excluded because of intra-operative and postoperative complications. In the RUs that experienced renal ischaemia (n = 7),the median urine volume was lower (P = 0.04) at 6, 12, 24 and 48 h and the median NGAL concentration was higher (P = 0.04) at 12 and 48 h compared with the RUs of control pigs that experienced no renal ischaemia (n = 2). When comparing the ischaemic (left) RU of the pigs in the experimental group with their contralateral non-ischaemic (right) RU, ischaemic RUs had a lower median cumulative urine volume at 6, 12, 24 and 48 h (P = 0.05) and a higher median NGAL concentration at 12, 24 and 48 h (P < 0.05). At 48 h, no significant increase was found in serum NGAL in pigs in the experimental group compared with controls (P = 0.2). Creatinine clearance (CC) was lower in ischaemic RUs compared with non-ischaemic RUs 1 day after surgery (P = 0.04) with decreasing CC as the duration of ischaemia increased. CONCLUSIONS We have developed a promising novel small-scale pilot surgical model that allowed the evaluation of bilateral RU function separately during and after unilateral renal ischaemia. The induction of unilateral renal ischaemia corresponds with physiological changes in both the ischaemic and contralateral RU. AKI as measured by increases in NGAL and decreased renal function as measured by decreases in CC, are specific to the RU exposed to ischaemia.
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Affiliation(s)
- Jonathan L Silberstein
- Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
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Ullrick SR, Wojtowycz M. Utility of percutaneous treatment in spontaneous renal artery dissection: case report and review of the literature. Semin Intervent Radiol 2007; 24:63-7. [PMID: 21326739 DOI: 10.1055/s-2007-971188] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Spontaneous renal artery dissection (SRAD) is a relatively rare entity that has been described in several case reports and small series in the medical literature. The condition is best diagnosed with angiography, with renal ischemia or infarction a common complication. Conservative medical management, surgical intervention, and percutaneous intervention are all discussed in the current literature. However, there is no consensus on which treatment option provides the best clinical outcome. Percutaneous stent placement has only recently been considered as an option for treatment of SRAD. This case report reviews the course of an otherwise healthy patient with a solitary right kidney who had SRAD complicated by renal infarction and was treated by percutaneous renal artery stent placement. Subsequently, we discuss and review the literature on SRAD treatment.
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Affiliation(s)
- Steven R Ullrick
- Department of Radiology, University of Wisconsin Hospital and Clinics, Madison, Wisconsin
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