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Pala R, Barui AK, Mohieldin AM, Zhou J, Nauli SM. Folate conjugated nanomedicines for selective inhibition of mTOR signaling in polycystic kidneys at clinically relevant doses. Biomaterials 2023; 302:122329. [PMID: 37722182 PMCID: PMC10836200 DOI: 10.1016/j.biomaterials.2023.122329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/12/2023] [Indexed: 09/20/2023]
Abstract
Although rapamycin is a very effective drug for rodents with polycystic kidney disease (PKD), it is not encouraging in the clinical trials due to the suboptimal dosages compelled by the off-target side effects. We here report the generation, characterization, specificity, functionality, pharmacokinetic, pharmacodynamic and toxicology profiles of novel polycystic kidney-specific-targeting nanoparticles (NPs). We formulated folate-conjugated PLGA-PEG NPs, which can be loaded with multiple drugs, including rapamycin (an mTOR inhibitor) and antioxidant 4-hydroxy-TEMPO (a nephroprotective agent). The NPs increased the efficacy, potency and tolerability of rapamycin resulting in an increased survival rate and improved kidney function by decreasing side effects and reducing biodistribution to other organs in PKD mice. The daily administration of rapamycin-alone (1 mg/kg/day) could now be achieved with a weekly injection of NPs containing rapamycin (379 μg/kg/week). This polycystic kidney-targeting nanotechnology, for the first time, integrated advances in the use of 1) nanoparticles as a delivery cargo, 2) folate for targeting, 3) near-infrared Cy5-fluorophore for in vitro and in vivo live imaging, 4) rapamycin as a pharmacological therapy, and 5) TEMPO as a combinational therapy. The slow sustained-release of rapamycin by polycystic kidney-targeting NPs demonstrates a new era of nanomedicine in treatment for chronic kidney diseases at clinically relevant doses.
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Affiliation(s)
- Rajasekharreddy Pala
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA, 92618, USA; Marlin Biopharma, Irvine, CA, 92620, USA.
| | - Ayan K Barui
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA, 92618, USA
| | - Ashraf M Mohieldin
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA, 92618, USA
| | - Jing Zhou
- Department of Medicine, Harvard Medical School, Boston, MA, 02115, USA
| | - Surya M Nauli
- Department of Biomedical and Pharmaceutical Sciences, Chapman University, Irvine, CA, 92618, USA; Marlin Biopharma, Irvine, CA, 92620, USA.
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2
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Garcia-Alonso I, Velasco-Oraa X, Cearra I, Iturrizaga Correcher S, Mar Medina C, Alonso-Varona A, García Ruiz de Gordejuela A, Ruiz-Montesinos I, Herrero de la Parte B. Prophylactic Treatment of Intestinal Ischemia-Reperfusion Injury Reduces Mucosal Damage and Improves Intestinal Absorption. J Inflamm Res 2023; 16:4141-4152. [PMID: 37750172 PMCID: PMC10518153 DOI: 10.2147/jir.s426396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/02/2023] [Indexed: 09/27/2023] Open
Abstract
Purpose Intestinal ischemia-reperfusion injury (i-IRI) involves a blood flow interruption in an intestinal segment followed by blood flow restoration. When blood flow is restored, oxidative and inflammatory molecules are distributed throughout the bloodstream, triggering both local and systemic damage. Our goal was to evaluate the potential of three antioxidant and/or anti-inflammatory compounds (curcumin, dexmedetomidine and α-tocopherol) to prevent or reverse local and systemic damage induced by i-IRI. Methods i-IRI was induced by placing a microvascular clip in the superior mesenteric artery of female WAG/RijHsd rats; the clip was removed after 1h and reperfusion was allowed for 4h. Curcumin (200 mg/kg, orally), α-tocopherol (20 mg/kg, i.p.), and dexmedetomidine (5 or 20 µg/kg, s.c.; DEX5 and DEX20, respectively) were administered. Blood and terminal ileum specimens were collected for biochemical and histological determination. Furthermore, D-xylose absorption test was performed to evaluate intestinal absorption; after completing the 1-hour ischemia and 4-hour reperfusion period, 1 mL of aqueous D-xylose solution (0.615 mg/mL) was administered orally, and one hour later, plasma D-xylose levels were quantified. Results The histological injury degree (HID) measured by the Chiu scale was significantly reduced when the treatments were applied (non-treated rats, 2.6 ± 0.75; curcumin, 1.54 ± 0.8; DEX5, 1.47 ± 0.7; DEX20 1.14 ± 0.5; and α-tocopherol, 1.01 ± 0.6); intestinal absorptive capacity also improved in all cases healthy rats (2.06 ± 0.07 µg/mL; non-treated, 1.18 ± 0.07 µg/mL; curcumin 1.76 ± 0.3 µg/mL; DEX5, 2.29 ± 0.2 µg/mL; DEX20, 2.25 ± 0.26 µg/mL; and α-tocopherol 1.66 ± 0.21 µg/mL). However, it failed to reduce liver enzyme levels. Finally, only dexmedetomidine significantly reduced urea and creatinine levels compared to non-treated animals. Conclusion All drugs were effective in reducing HID, although α-tocopherol was effective to a greater extent. Only dexmedetomidine reverted intestinal absorption to normal values of healthy animals.
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Affiliation(s)
- Ignacio Garcia-Alonso
- Department of Surgery and Radiology and Physical Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, 48940, Spain
- Interventional Radiology Research Group, Biocruces Bizkaia Health Research Institute, Barakaldo, 48903, Spain
| | - Xabier Velasco-Oraa
- Department of Anaesthesia, Hospital Clínic of Barcelona, Barcelona, 08036, Spain
| | - Iñigo Cearra
- Department of Surgery and Radiology and Physical Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, 48940, Spain
- Department of Orthopedics, Basurto University Hospital, Osakidetza Basque Health Service, Bilbao, 48013, Spain
- Regenerative Therapies, Osteoarticular and Tendon Pathology Research Group, Biocruces Bizkaia Health Research Institute, Barakaldo, 48903, Spain
| | | | - Carmen Mar Medina
- Department of Clinical Analyses, Galdakao-Usansolo University Hospital, Galdakao, 48960, Spain
| | - Ana Alonso-Varona
- Department of Cell Biology and Histology, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, 48940, Spain
| | - Amador García Ruiz de Gordejuela
- Department of Surgery and Radiology and Physical Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, 48940, Spain
- Department of Gastrointestinal Surgery, Donostia University Hospital, Osakidetza Basque Health Service, Donostia, 20014, Spain
| | - Inmaculada Ruiz-Montesinos
- Department of Surgery and Radiology and Physical Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, 48940, Spain
- Department of Gastrointestinal Surgery, Donostia University Hospital, Osakidetza Basque Health Service, Donostia, 20014, Spain
| | - Borja Herrero de la Parte
- Department of Surgery and Radiology and Physical Medicine, Faculty of Medicine and Nursing, University of the Basque Country UPV/EHU, Leioa, 48940, Spain
- Interventional Radiology Research Group, Biocruces Bizkaia Health Research Institute, Barakaldo, 48903, Spain
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3
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Li Z, Fan X, Fan J, Zhang W, Liu J, Liu B, Zhang H. Delivering drugs to tubular cells and organelles: the application of nanodrugs in acute kidney injury. Nanomedicine (Lond) 2023; 18:1477-1493. [PMID: 37721160 DOI: 10.2217/nnm-2023-0200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023] Open
Abstract
Acute kidney injury (AKI) is a common clinical syndrome with limited treatment options and high mortality rates. Proximal tubular epithelial cells (PTECs) play a key role in AKI progression. Subcellular dysfunctions, including mitochondrial, nuclear, endoplasmic reticulum and lysosomal dysfunctions, are extensively studied in PTECs. These studies have led to the development of potential therapeutic drugs. However, clinical development of those drugs faces challenges such as low solubility, short circulation time and severe systemic side effects. Nanotechnology provides a promising solution by improving drug properties through nanocrystallization and enabling targeted delivery to specific sites. This review summarizes advancements and limitations of nanoparticle-based drug-delivery systems in targeting PTECs and subcellular organelles, particularly mitochondria, for AKI treatment.
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Affiliation(s)
- Zhi Li
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, 410013, China
| | - Xiao Fan
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, 410013, China
| | - Jialong Fan
- College of Biology, Hunan University, Changsha, 410082, China
| | - Wei Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, 410013, China
| | - Jun Liu
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, 410013, China
| | - Bin Liu
- College of Biology, Hunan University, Changsha, 410082, China
- Department of Physiology & Pathophysiology, NHC Key Laboratory of Metabolic Cardiovascular Diseases Research, School of Basic Medical Sciences, Ningxia Medical University, Yinchuan, 750004, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital, Central South University, Changsha, 410013, China
- The Critical Kidney Disease Research Center of Central South University, Changsha, 410013, China
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Imig JD. Orally active epoxyeicosatrienoic acid analogs in hypertension and renal injury. ADVANCES IN PHARMACOLOGY 2022; 94:27-55. [PMID: 35659375 PMCID: PMC10105514 DOI: 10.1016/bs.apha.2022.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Epoxyeicosatrienoic acids (EETs) are arachidonic acid metabolites synthesized by cytochrome P450 epoxygenases. Biological activities for EETs include vasodilation, decreasing inflammation, opposing apoptosis, and inhibiting renal sodium reabsorption. These actions are beneficial in lowering blood pressure and slowing kidney disease progression. Furthermore, evidence in human and experimental animal studies have found that decreased EET levels contribute to hypertension and kidney diseases. Consequently, EET mimics/analogs have been developed as a potential therapeutic for hypertension and acute and chronic kidney diseases. Their development has resulted in EET analogs that are orally active with favorable pharmacological profiles. Analogs for 8,9-EET, 11,12-EET, and 14,15-EET have been tested in several hypertension and kidney disease animal models. More recently, kidney targeted EET analogs have been synthesized and tested against drug-induced nephrotoxicity. Experimental evidence has demonstrated compelling therapeutic potential for EET analogs to oppose cardiovascular and kidney diseases. These EET analogs lower blood pressure, decrease kidney inflammation, improve vascular endothelial function, and decrease kidney fibrosis and apoptosis. Overall, these preclinical studies support the likelihood that EET analogs will advance to clinical trials for hypertension and associated comorbidities or acute and chronic kidney diseases.
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Affiliation(s)
- John D Imig
- Drug Discovery Center, Medical College of Wisconsin, Milwaukee, WI, United States.
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Effects of Folinic Acid Administration on Lower Limb Ischemia/Reperfusion Injury in Rats. Antioxidants (Basel) 2021; 10:antiox10121887. [PMID: 34942991 PMCID: PMC8698375 DOI: 10.3390/antiox10121887] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 11/19/2021] [Accepted: 11/24/2021] [Indexed: 01/02/2023] Open
Abstract
Surgery under ischemic conditions, lasting up to 3 h, is routinely performed in orthopedic surgery, causing undesirable injury due to ischemia-reperfusion syndrome, with short and medium-term functional repercussions. To date, there is no established prophylactic treatment. In this work we evaluated folinic acid (FA) in a rodent model of lower limb ischemia-reperfusion (IRI-LL). 36 male WAG rats underwent 3 h of lower limb ischemia. In the saline group, rats received intraperitoneal administration of saline (used as vehicle for treatment). In the experimental group, rats were pretreated with FA (2.5 mg/kg) before the end of ischemia. After ischemia, animals were sacrificed at 3 h, 24 h or 14 days (for biochemical determination (Na+, K+, Cl-, urea, creatinine, CK, LDH, ALP, ALT, and AST), pathological assessment, or functional study using the rotarod test; respectively). Another six animals were used to establish the reference values. The prophylactic administration of FA significantly reduced the elevation of biochemical markers, especially those that most directly indicate muscle damage (CK and LDH). In addition, it also improved direct tissue damage, both in terms of edema, weight, PMN infiltrate and percentage of damaged fibers. Finally, the administration of FA allowed the animals to equal baseline values in the rotarod test; what did not occur in the saline group, where pre-ischemia levels were not recovered. Following 3 h of lower limb ischemia, FA minimizes the increase of CK and LDH, as well as local edema and leukocyte infiltration, allowing a faster recovery of limb functionality. Therefore, it could be considered as a prophylactic treatment when tourniquet is used in clinics.
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Xie D, Wang J, Hu G, Chen C, Yang H, Ritter JK, Qu Y, Li N. Kidney-Targeted Delivery of Prolyl Hydroxylase Domain Protein 2 Small Interfering RNA with Nanoparticles Alleviated Renal Ischemia/Reperfusion Injury. J Pharmacol Exp Ther 2021; 378:235-243. [PMID: 34103333 PMCID: PMC11047054 DOI: 10.1124/jpet.121.000667] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 06/03/2021] [Indexed: 12/15/2022] Open
Abstract
Inhibition of hypoxia-inducible factor-prolyl hydroxylase (PHD) has been shown to protect against various kidney diseases. However, there are controversial reports on the effect of PHD inhibition in renoprotection. The present study determined whether delivery of PHD2 small interfering RNA (siRNA) using an siRNA carrier, folic acid (FA)-decorated polyamidoamine dendrimer generation 5 (G5-FA), would mainly target kidneys and protect against renal ischemia/reperfusion injury (I/R). The renal I/R was generated by clipping the renal pedicle for 30 minutes in uninephrectomized mice. Mice were sacrificed 48 hours after I/R. Normal saline or G5-FA complexed with control or PHD2 siRNA was injected via tail vein 24 hours before ischemia. After the injection of near-infrared fluorescent dye-labeled G5-FA, the fluorescence was mainly detected in kidneys but not in other organs. The reduction of PHD2 mRNA and protein was only observed in kidneys but not in other organs after injection of PHD2-siRNA-G5-FA complex. The injection of PHD2-siRNA-G5-FA significantly alleviated renal I/R injury, as shown by the inhibition of increases in serum creatinine and blood urea nitrogen, the blockade of increases in kidney injury molecule-1 and neutrophil gelatinase-associated lipocalin, and the improvement of histologic damage compared with mice treated with control siRNA. PHD2 siRNA can be delivered specifically into kidneys using G5-FA, and that local knockdown of PHD2 gene expression within the kidney alleviates renal I/R injury. Therefore, G5-FA is an efficient siRNA carrier to deliver siRNA into the kidney, and that local inhibition of PHD2 within the kidney may be a potential strategy for the management of acute I/R injury. SIGNIFICANCE STATEMENT: Folic acid (FA)-decorated polyamidoamine dendrimer generation 5 (G5-FA) was demonstrated to be an effective carrier to deliver small interfering RNA (siRNA) into kidneys. Delivery of prolyl hydroxylase domain protein 2 siRNA with G5-FA effectively protected the kidneys against the acute renal ischemia/reperfusion injury.
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Affiliation(s)
- Dengpiao Xie
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
| | - Juan Wang
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
| | - Gaizun Hu
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
| | - Chaoling Chen
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
| | - Hu Yang
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
| | - Joseph K Ritter
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
| | - Yun Qu
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
| | - Ningjun Li
- Department of Pharmacology & Toxicology, Virginia Commonwealth University School of Medicine, Richmond, Virginia (D.X., G.H., C.C., J.K.R., N.L.); College of Biomedical Engineering, Sichuan University, Chengdu, China (J.W.); Department of Chemical and Biochemical Engineering, Missouri University of Science and Technology, Rolla, Missouri (H.Y.); and Department of Chemistry, Virginia Commonwealth University, Richmond, Virginia (Y.Q.)
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7
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Lin Y, Zhao M, Bai L, Li H, Xu Y, Li X, Xie J, Zhang Y, Zheng D. Renal-targeting peptide-microRNA nanocomplex for near IR imaging and therapy of renal ischemia/reperfusion injury. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2021.02.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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8
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Zhao H, Qiu Y, Wu Y, Sun H, Gao S. Protective Effects of GYY4137 on Renal Ischaemia/Reperfusion Injury through Nrf2-Mediated Antioxidant Defence. Kidney Blood Press Res 2021; 46:257-265. [PMID: 33910212 DOI: 10.1159/000509933] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Accepted: 07/05/2020] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION/AIMS Hydrogen sulfide (H2S) is considered to be the third most important endogenous gasotransmitter in organisms. GYY4137 is a long-acting donor for H2S, a gas transmitter that has been shown to prevent multi-organ damage in animal studies. We previously reported the effect of GYY4137 on cardiac ischaemia reperfusion injury (IRI) in diabetic mice. However, the role and mechanism of GYY4137 in renal IRI are poorly understood. The aims of this study were to determine whether GYY4137 can effectively alleviate the injury induced by renal ischaemia reperfusion and to explore its possible mechanism. METHODS Mice received right nephrectomy and clipping of the left renal pedicle for 45 min. GYY4137 was administered by intraperitoneal injection for 2 consecutive days before the operation. The model of hypoxia/reoxygenation injury was established in HK-2 cells, which were pre-treated with or without GYY4137. Renal histology, function, apoptosis, and oxidative stress were measured. Western blot was used to measure the target -protein after renal IRI. RESULTS The results indicated that GYY4137 had a clear protective effect on renal IRI as reflected by the attenuation of renal dysfunction, renal tubule injury, and apoptosis. Moreover, GYY4137 remarkably reduced renal IRI-induced oxidative stress. GYY4137 significantly elevated the nuclear translocation of nuclear factor-erythroid-2-related factor 2 (Nrf2) and the expression of antioxidant enzymes regulated by Nrf2, including SOD, HO-1, and NQO-1. CONCLUSIONS GYY4137 alleviates ischaemia reperfusion-induced renal injury through activating the antioxidant effect mediated by Nrf2 signalling.
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Affiliation(s)
- Hongmei Zhao
- Department of Emergency Medicine, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Yun Qiu
- Department of Emergency Medicine, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Yichen Wu
- Department of Emergency Medicine, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Hong Sun
- Department of Emergency Medicine, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, China
| | - Sumin Gao
- Department of Emergency Medicine, The Affiliated Huaian No. 1 People's Hospital of Nanjing Medical University, Huai'an, China
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Imig JD, Hye Khan MA, Burkhan A, Chen G, Adebesin AM, Falck JR. Kidney-Targeted Epoxyeicosatrienoic Acid Analog, EET-F01, Reduces Inflammation, Oxidative Stress, and Cisplatin-Induced Nephrotoxicity. Int J Mol Sci 2021; 22:2793. [PMID: 33801911 PMCID: PMC7998941 DOI: 10.3390/ijms22062793] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/01/2021] [Accepted: 03/05/2021] [Indexed: 02/08/2023] Open
Abstract
Although epoxyeicosatrienoic acid (EET) analogs have performed well in several acute and chronic kidney disease models, targeted delivery of EET analogs to the kidney can be reasonably expected to reduce the level of drug needed to achieve a therapeutic effect and obviate possible side effects. For EET analog kidney-targeted delivery, we conjugated a stable EET analog to folic acid via a PEG-diamine linker. Next, we compared the kidney targeted EET analog, EET-F01, to a well-studied EET analog, EET-A. EET-A or EET-F01 was infused i.v. and plasma and kidney tissue collected. EET-A was detected in the plasma but was undetectable in the kidney. On the other hand, EET-F01 was detected in the plasma and kidney. Experiments were conducted to compare the efficacy of EET-F01 and EET-A for decreasing cisplatin nephrotoxicity. Cisplatin was administered to WKY rats treated with vehicle, EET-A (10 mg/kg i.p.) or EET-F01 (20 mg/kg or 2 mg/kg i.p.). Cisplatin increased kidney injury markers, viz., blood urea nitrogen (BUN), N-acetyl-β-(D)-glucosaminidase (NAG), kidney injury molecule-1 (KIM-1), and thiobarbituric acid reactive substances (TBARS). EET-F01 was as effective as EET-A in decreasing BUN, NAG, KIM-1, TBARS, and renal histological injury caused by cisplatin. Despite its almost 2×-greater molecular weight compared with EET-A, EET-F01 was comparably effective in decreasing renal injury at a 10-fold w/w lower dose. EET-F01 decreased cisplatin nephrotoxicity by reducing oxidative stress and inflammation. These data demonstrate that EET-F01 targets the kidney, allows for a lower effective dose, and combats cisplatin nephrotoxicity. In conclusion, we have developed a kidney targeted EET analog, EET-F01, that demonstrates excellent potential as a therapeutic for kidney diseases.
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MESH Headings
- 8,11,14-Eicosatrienoic Acid/analogs & derivatives
- 8,11,14-Eicosatrienoic Acid/chemistry
- 8,11,14-Eicosatrienoic Acid/pharmacokinetics
- 8,11,14-Eicosatrienoic Acid/pharmacology
- Animals
- Breast Neoplasms/drug therapy
- Breast Neoplasms/pathology
- Cell Line, Tumor
- Cisplatin
- Female
- Humans
- Inflammation/metabolism
- Inflammation/prevention & control
- Kidney/metabolism
- Kidney/pathology
- Kidney Diseases/chemically induced
- Kidney Diseases/metabolism
- Kidney Diseases/prevention & control
- Male
- Mice, Nude
- Oxidative Stress/drug effects
- Rats, Inbred WKY
- Tumor Burden/drug effects
- Xenograft Model Antitumor Assays/methods
- Mice
- Rats
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Affiliation(s)
- John D. Imig
- Drug Discovery Center and Cardiovascular Center, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA;
| | - Md Abdul Hye Khan
- Drug Discovery Center and Cardiovascular Center, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA;
| | - Anna Burkhan
- Drug Discovery Center and Cardiovascular Center, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA;
| | - Guan Chen
- Department of Pharmacology & Toxicology, Medical College of Wisconsin, Milwaukee, WI 53226, USA;
| | - Adeniyi Michael Adebesin
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.M.A.); (J.R.F.)
| | - John R. Falck
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.M.A.); (J.R.F.)
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10
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Wang J, Tripathy N, Chung EJ. Targeting and therapeutic peptide-based strategies for polycystic kidney disease. Adv Drug Deliv Rev 2020; 161-162:176-189. [PMID: 32866560 PMCID: PMC7736157 DOI: 10.1016/j.addr.2020.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 08/15/2020] [Accepted: 08/27/2020] [Indexed: 12/17/2022]
Abstract
Polycystic kidney disease (PKD) is characterized by progressive cyst growth and is a leading cause of renal failure worldwide. Currently, there are limited therapeutic options available to PKD patients, and only one drug, tolvaptan, has been FDA-approved to slow cyst progression. Similar to other small molecule drugs, however, tolvaptan is costly, only moderately effective, and causes adverse events leading to high patient dropout rates. Peptides may mitigate many drawbacks of small molecule drugs, as they can be highly tissue-specific, biocompatible, and economically scaled-up. Peptides can function as targeting ligands that direct therapies to diseased renal tissue, or be potent as therapeutic agents themselves. This review discusses various aberrant signaling pathways in PKD and renal receptors that can be potential targets of peptide-mediated strategies. Additionally, peptides utilized in other kidney applications, but may prove useful in the context of PKD, are highlighted. Insights into novel peptide-based solutions that have potential to improve clinical management of PKD are provided.
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Affiliation(s)
- Jonathan Wang
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA
| | - Nirmalya Tripathy
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA
| | - Eun Ji Chung
- Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, USA; Department of Chemical Engineering and Materials Science, University of Southern California, Los Angeles, CA, USA; Department of Medicine, Division of Nephrology and Hypertension, University of Southern California, Los Angeles, CA, USA; Department of Surgery, Division of Vascular Surgery and Endovascular Therapy, University of Southern California, Los Angeles, CA, USA.
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11
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Huang C, Zeng T, Li J, Tan L, Deng X, Pan Y, Chen Q, Li A, Hu J. Folate Receptor-Mediated Renal-Targeting Nanoplatform for the Specific Delivery of Triptolide to Treat Renal Ischemia/Reperfusion Injury. ACS Biomater Sci Eng 2019; 5:2877-2886. [PMID: 33405591 DOI: 10.1021/acsbiomaterials.9b00119] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Caili Huang
- Nanobiological Medicine Center, Key Laboratory of Fuel Cell Technology of Guangdong Province, Department of Chemistry, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Tao Zeng
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jiawen Li
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Lishan Tan
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Xiulong Deng
- Nanobiological Medicine Center, Key Laboratory of Fuel Cell Technology of Guangdong Province, Department of Chemistry, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Yanchao Pan
- Nanobiological Medicine Center, Key Laboratory of Fuel Cell Technology of Guangdong Province, Department of Chemistry, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Qi Chen
- Nanobiological Medicine Center, Key Laboratory of Fuel Cell Technology of Guangdong Province, Department of Chemistry, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
| | - Aiqing Li
- State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Jianqiang Hu
- Nanobiological Medicine Center, Key Laboratory of Fuel Cell Technology of Guangdong Province, Department of Chemistry, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510640, China
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12
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Pretreatment with Cholecalciferol Alleviates Renal Cellular Stress Response during Ischemia/Reperfusion-Induced Acute Kidney Injury. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1897316. [PMID: 31019650 PMCID: PMC6452543 DOI: 10.1155/2019/1897316] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 11/06/2018] [Accepted: 02/18/2019] [Indexed: 02/06/2023]
Abstract
Background Cellular stress is involved in ischemia/reperfusion- (I/R-) induced acute kidney injury (AKI). This study is aimed at investigating the effects of pretreatment with cholecalciferol on renal oxidative stress and endoplasmic reticulum (ER) stress during I/R-induced AKI. Methods I/R-induced AKI was established by cross-clamping renal pedicles for 90 minutes and then reperfusion. In the Chol + I/R group, mice were orally administered with three doses of cholecalciferol (25 μg/kg) at 1, 24, and 48 h before ischemia. Renal cellular stress and kidney injury were measured at different time points after reperfusion. Results I/R-induced AKI was alleviated in mice pretreated with cholecalciferol. In addition, I/R-induced renal cell apoptosis, as determined by TUNEL, was suppressed by cholecalciferol. Additional experiment showed that I/R-induced upregulation of renal GRP78 and CHOP was inhibited by cholecalciferol. I/R-induced renal IRE1α and eIF2α phosphorylation was attenuated by cholecalciferol. Moreover, I/R-induced renal GSH depletion, lipid peroxidation, and protein nitration were blocked in mice pretreated with cholecalciferol. I/R-induced upregulation of renal NADPH oxidases, such as p47phox, gp91phox, and nox4, was inhibited by cholecalciferol. I/R-induced upregulation of heme oxygenase- (HO-) 1, gshpx and gshrd, was attenuated in mice pretreated with cholecalciferol. Conclusions Pretreatment with cholecalciferol protects against I/R-induced AKI partially through suppressing renal cellular stress response.
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Isaak CK, Wang P, Prashar S, O K, Brown DC, Debnath SC, Siow YL. Supplementing diet with Manitoba lingonberry juice reduces kidney ischemia-reperfusion injury. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:3065-3076. [PMID: 28074603 DOI: 10.1002/jsfa.8200] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 08/08/2016] [Accepted: 01/02/2017] [Indexed: 06/06/2023]
Abstract
BACKGROUND Lingonberry (Vaccinium vitis-idaea L.) contains high levels of anthocyanins which are bioavailable in the kidney and may be protective against ischemia-reperfusion (IR)-induced acute kidney injury. This study investigated the effect of lingonberry juice on the IR-induced stress-activated signalling pathway and inflammatory response in the kidney. RESULTS Sprague-Dawley rats subjected to kidney IR had significantly impaired kidney function, with increased activation of the JNK signalling pathway and increased inflammatory response, measured using a multiplex panel containing an extensive array of inflammatory biomarkers. In rats fed 1 mL lingonberry juice daily for 3 weeks prior to IR, kidney function was protected and attenuation of inflammatory response and JNK signalling was reflected in the reduction of the measured biomarkers. In vitro results in cultured HK-2 cells confirmed that lingonberry anthocyanins reduced JNK signalling and inflammatory gene expression after IR. CONCLUSION This study shows, for the first time, that daily supplementation with lingonberry juice may protect against loss of kidney function induced by IR injury by modulating JNK signalling and inhibiting the subsequent inflammatory response. © 2017 Her Majesty the Queen in Right of Canada. Journal of the Science of Food and Agriculture © 2017 Society of Chemical Industry.
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Affiliation(s)
- Cara K Isaak
- Agriculture and Agri-Food Canada, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Department of Physiology & Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Pengqi Wang
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Suvira Prashar
- Agriculture and Agri-Food Canada, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
| | - Karmin O
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Department of Physiology & Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
- Department of Animal Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Daniel Cw Brown
- Agriculture and Agri-Food Canada, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Department of Human Nutritional Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Samir C Debnath
- Agriculture and Agri-Food Canada, St John's Research and Development Centre, St John's, Newfoundland and Labrador, Canada
| | - Yaw L Siow
- Agriculture and Agri-Food Canada, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Canadian Centre for Agri-Food Research in Health and Medicine, St Boniface Hospital Albrechtsen Research Centre, Winnipeg, Manitoba, Canada
- Department of Physiology & Pathophysiology, University of Manitoba, Winnipeg, Manitoba, Canada
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Abstract
BACKGROUND Brain death (BD)-related lipid peroxidation, measured as serum malondialdehyde (MDA) levels, correlates with delayed graft function in renal transplant recipients. How BD affects lipid peroxidation is not known. The extent of BD-induced organ damage is influenced by the speed at which intracranial pressure increases. To determine possible underlying causes of lipid peroxidation, we investigated the renal redox balance by assessing oxidative and antioxidative processes in kidneys of brain-dead rats after fast and slow BD induction. METHODS Brain death was induced in 64 ventilated male Fisher rats by inflating a 4.0F Fogarty catheter in the epidural space. Fast and slow inductions were achieved by an inflation speed of 0.45 and 0.015 mL/min, respectively, until BD confirmation. Healthy non-brain-dead rats served as reference values. Brain-dead rats were monitored for 0.5, 1, 2, or 4 hours, after which organs and blood were collected. RESULTS Increased MDA levels became evident at 2 hours of slow BD induction at which increased superoxide levels, decreased glutathione peroxidase (GPx) activity, decreased glutathione levels, increased inducible nitric oxide synthase and heme-oxygenase 1 expression, and increased plasma creatinine levels were evident. At 4 hours after slow BD induction, superoxide, MDA, and plasma creatinine levels increased further, whereas GPx activity remained decreased. Increased MDA and plasma creatinine levels also became evident after 4 hours fast BD induction. CONCLUSION Brain death leads to increased superoxide production, decreased GPx activity, decreased glutathione levels, increased inducible nitric oxide synthase and heme-oxygenase 1 expression, and increased MDA and plasma creatinine levels. These effects were more pronounced after slow BD induction. Modulation of these processes could lead to decreased incidence of delayed graft function.
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Xu L, Bai Q, Zhang X, Yang H. Folate-mediated chemotherapy and diagnostics: An updated review and outlook. J Control Release 2017; 252:73-82. [PMID: 28235591 DOI: 10.1016/j.jconrel.2017.02.023] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 02/19/2017] [Indexed: 11/18/2022]
Abstract
Folate receptor (FR) is highly expressed in many types of human cancers, and it has been actively studied for developing targeted chemotherapy and diagnostic agents. Tremendous efforts have been made in developing FR-targeted nanomedicines and nanoprobes and translating them into clinical applications. This article provides a concise review on the latest development of folate-mediated nanomedicines and nanoprobes for chemotherapy and diagnostics with an emphasis on in vivo applications. The cellular uptake mechanisms, pharmacokinetics (PK), administration routes and major challenges in FR-targeted nanoparticles are discussed.
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Affiliation(s)
- Leyuan Xu
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, United States; Department of Internal Medicine, Yale University, New Haven, CT 06520, United States
| | - Qianming Bai
- Department of Pathology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China
| | - Xin Zhang
- Department of Pathology, Fudan University Zhongshan Hospital, Shanghai 200032, China
| | - Hu Yang
- Department of Chemical and Life Science Engineering, Virginia Commonwealth University, Richmond, VA 23284, United States; Department of Pharmaceutics, Virginia Commonwealth University, Richmond, VA 23298, United States; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, United States.
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Ergin B, Bezemer R, Kandil A, Demirci-Tansel C, Ince C. TEMPOL has limited protective effects on renal oxygenation and hemodynamics but reduces kidney damage and inflammation in a rat model of renal ischemia/reperfusion by aortic clamping. J Clin Transl Res 2015; 1:1-13. [PMID: 30873445 PMCID: PMC6410622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2015] [Revised: 09/06/2015] [Accepted: 09/06/2015] [Indexed: 10/26/2022] Open
Abstract
BACKGROUND Renal ischemia-reperfusion (I/R) is a common clinical complication in critically ill patients that is associated with considerable morbidity and mortality. Renal I/R is a major cause of acute kidney injury (AKI) resulting from I/R-induced oxidative stress, sterile inflammation, and microcirculatory perfusion defects, which can be ameliorated with the superoxide scavenger TEMPOL. The most common cause of AKI in the clinical setting is aortic surgery with suprarenal aortic clamping. The protective effect of TEMPOL in aortic clamping-induced renal I/R has not been studied before. AIM To evaluate the protective effects of TEMPOL on oxidative stress, inflammation, tissue injury, and renal hemodynamics and oxygenation in a clinically representative rat model of I/R using aortic cross-clamping. METHODS Animals (N = 24) were either sham-operated or subjected to ischemia (30 min) and 90-min reperfusion, with or without TEMPOL treatment (15 min before ischemia and during entire reperfusion phase, 200 μmol/kg/h). Systemic and renal hemodynamics, renal oxygenation, and blood gas values were determined at 15 min and 90 min of reperfusion. At 90-min reperfusion, iNOS, inflammation (IL-6, MPO), oxidative stress (MDA), and tissue damage (NGAL, L-FABP) were determined in tissue biopsies. RESULTS TEMPOL administration at a cumulative dose of 400 μmol/kg conferred a protective effect on AKI in terms of reducing renal damage, inflammation, and iNOS activation. With respect to renal hemodynamics and oxygenation, TEMPOL only reduced renal vascular resistance to near-baseline levels at both reperfusion time points and partially ameliorated the I/R-induced drop microvascular partial tension of oxygen at 90 min reperfusion. Also, TEMPOL alleviated the I/R-induced metabolic acidosis. However, TEMPOL exerted no restorative effect in terms of the severely reduced mean arterial pressure, renal blood flow, and renal oxygen delivery and consumption. The renal oxygen extraction ratio remained unchanged during the 90-min reperfusion phase. Kidneys in all groups were anuric throughout the experiment. CONCLUSIONS This clinically representative renal I/R model, which entails both renal I/R and hind limb I/R as opposed to the standardly used renal I/R model that employs renal artery clamping, resulted in relatively moderate direct AKI. The damage was exacerbated by the perturbed systemic hemodynamics and metabolic acidosis as a result of the hind limb I/R. TEMPOL partially intervened in the factors that led to AKI as well as renal microvascular partial tension of oxygen and metabolic acidosis. However, more effective interventions should be devised for the mean arterial pressure drop (i.e., anuria) associated with aortic clamping and for restoring other critical renal hemodynamic and oxygenation parameters in order to improve post-I/R renal function. RELEVANCE FOR PATIENTS TEMPOL is a promising compound that has been shown to protect kidneys from I/R damage, which is relevant in kidney transplantation, pancreas transplantation, and aortic aneurysm repair in kidney transplant patients. This study suggests that intervening with TEMPOL is not sufficient to ensure optimal clinical outcome in patients that have undergone aortic clamping and that more effective interventions should be investigated.
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Affiliation(s)
- Bulent Ergin
- Department of Translational Physiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Rick Bezemer
- Department of Translational Physiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - Asli Kandil
- Department of Biology, Faculty of Science, Istanbul University, Vezneciler, Istanbul, Turkey
| | - Cihan Demirci-Tansel
- Department of Biology, Faculty of Science, Istanbul University, Vezneciler, Istanbul, Turkey
| | - Can Ince
- Department of Translational Physiology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
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Strategies to optimize kidney recovery and preservation in transplantation: specific aspects in pediatric transplantation. Pediatr Nephrol 2015; 30:1243-54. [PMID: 25185880 DOI: 10.1007/s00467-014-2924-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 07/09/2014] [Accepted: 07/21/2014] [Indexed: 01/08/2023]
Abstract
In renal transplantation, live donor kidney grafts are associated with optimum success rates due to the shorter period of ischemia during the surgical procedure. The current shortage of donor organs for adult patients has caused a shift towards deceased donors, often with co-morbidity factors, whose organs are more sensitive to ischemia-reperfusion injury, which is unavoidable during transplantation. Donor management is pivotal to kidney graft survival through the control of the ischemia-reperfusion sequence, which is known to stimulate numerous deleterious or regenerative pathways. Although the key role of endothelial cells has been established, the complexity of the injury, associated with stimulation of different cell signaling pathways, such as unfolded protein response and cell death, prevents the definition of a unique therapeutic target. Preclinical transplant models in large animals are necessary to establish relationships and kinetics and have already contributed to the improvement of organ preservation. Therapeutic strategies using mesenchymal stem cells to induce allograft tolerance are promising advances in the treatment of the pediatric recipient in terms of reducing/withdrawing immunosuppressive therapy. In this review we focus on the different donor management strategies in kidney graft conditioning and on graft preservation consequences by highlighting the role of endothelial cells. We also propose strategies for preventing ischemia-reperfusion, such as cell therapy.
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Paramjot, Khan NM, Kapahi H, Kumar S, Bhardwaj TR, Arora S, Mishra N. Role of polymer–drug conjugates in organ-specific delivery systems. J Drug Target 2015; 23:387-416. [DOI: 10.3109/1061186x.2015.1016436] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Chapal M, Le Borgne F, Legendre C, Kreis H, Mourad G, Garrigue V, Morelon E, Buron F, Rostaing L, Kamar N, Kessler M, Ladrière M, Soulillou JP, Launay K, Daguin P, Offredo L, Giral M, Foucher Y. A useful scoring system for the prediction and management of delayed graft function following kidney transplantation from cadaveric donors. Kidney Int 2014; 86:1130-9. [PMID: 24897036 DOI: 10.1038/ki.2014.188] [Citation(s) in RCA: 71] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 03/04/2014] [Accepted: 04/03/2014] [Indexed: 02/07/2023]
Abstract
Delayed graft function (DGF) is a common complication in kidney transplantation and is known to be correlated with short- and long-term graft outcomes. Here we explored the possibility of developing a simple tool that could predict with good confidence the occurrence of DGF and could be helpful in current clinical practice. We built a score, tentatively called DGFS, from a French multicenter and prospective cohort of 1844 adult recipients of deceased donor kidneys collected since 2007, and computerized in the Données Informatisées et VAlidées en Transplantation databank. Only five explicative variables (cold ischemia time, donor age, donor serum creatinine, recipient body mass index, and induction therapy) contributed significantly to the DGF prediction. These were associated with a good predictive capacity (area under the ROC curve at 0.73). The DGFS calculation is facilitated by an application available on smartphones, tablets, or computers at www.divat.fr/en/online-calculators/dgfs. The DGFS should allow the simple classification of patients according to their DGF risk at the time of transplantation, and thus allow tailored-specific management or therapeutic strategies.
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Affiliation(s)
- Marion Chapal
- 1] Institut de Transplantation et de Recherche en Transplantation, ITUN, CHU Nantes, RTRS « Centaure », Nantes and Inserm U1064 (Immunointervention dans les Allo et Xénotransplantation), Nantes University, boulevard Jean Monnet, Nantes, France [2] Centre d'Investigation Clinique biothérapie, Labex Transplantex, boulevard Jean Monnet, Nantes, France
| | - Florent Le Borgne
- EA 4275 SPHERE-Biostatistics, Clinical Research and Pharmaco-Epidemiology, Nantes University, Nantes, France
| | - Christophe Legendre
- 1] Service de Transplantation Rénale et de Soins Intensifs, Hôpital Necker, APHP, Paris, France [2] Universités Paris Descartes et Sorbonne Paris Cité, Paris, France
| | - Henri Kreis
- 1] Service de Transplantation Rénale et de Soins Intensifs, Hôpital Necker, APHP, Paris, France [2] Universités Paris Descartes et Sorbonne Paris Cité, Paris, France
| | - Georges Mourad
- Service de Néphrologie, Dialyse et Transplantation, Hôpital Lapeyronie, Montpellier, Université Montpellier I, Montpellier, France
| | - Valérie Garrigue
- Service de Néphrologie, Dialyse et Transplantation, Hôpital Lapeyronie, Montpellier, Université Montpellier I, Montpellier, France
| | - Emmanuel Morelon
- Service de Néphrologie, Transplantation et Immunologie Clinique, Hôpital Edouard Herriot, Lyon, France
| | - Fanny Buron
- Service de Néphrologie, Transplantation et Immunologie Clinique, Hôpital Edouard Herriot, Lyon, France
| | - Lionel Rostaing
- 1] Service de Néphrologie, HTA, Dialyse et Transplantation d'Organes, CHU Rangueil, Toulouse, France [2] Université Paul Sabatier, Toulouse, France
| | - Nassim Kamar
- 1] Service de Néphrologie, HTA, Dialyse et Transplantation d'Organes, CHU Rangueil, Toulouse, France [2] Université Paul Sabatier, Toulouse, France
| | - Michèle Kessler
- Service de Transplantation Rénale, CHU Brabois, Nancy, France
| | - Marc Ladrière
- Service de Transplantation Rénale, CHU Brabois, Nancy, France
| | - Jean-Paul Soulillou
- 1] Institut de Transplantation et de Recherche en Transplantation, ITUN, CHU Nantes, RTRS « Centaure », Nantes and Inserm U1064 (Immunointervention dans les Allo et Xénotransplantation), Nantes University, boulevard Jean Monnet, Nantes, France [2] Centre d'Investigation Clinique biothérapie, Labex Transplantex, boulevard Jean Monnet, Nantes, France
| | - Katy Launay
- 1] Institut de Transplantation et de Recherche en Transplantation, ITUN, CHU Nantes, RTRS « Centaure », Nantes and Inserm U1064 (Immunointervention dans les Allo et Xénotransplantation), Nantes University, boulevard Jean Monnet, Nantes, France [2] EA 4275 SPHERE-Biostatistics, Clinical Research and Pharmaco-Epidemiology, Nantes University, Nantes, France
| | - Pascal Daguin
- Institut de Transplantation et de Recherche en Transplantation, ITUN, CHU Nantes, RTRS « Centaure », Nantes and Inserm U1064 (Immunointervention dans les Allo et Xénotransplantation), Nantes University, boulevard Jean Monnet, Nantes, France
| | - Lucile Offredo
- EA 4275 SPHERE-Biostatistics, Clinical Research and Pharmaco-Epidemiology, Nantes University, Nantes, France
| | - Magali Giral
- 1] Institut de Transplantation et de Recherche en Transplantation, ITUN, CHU Nantes, RTRS « Centaure », Nantes and Inserm U1064 (Immunointervention dans les Allo et Xénotransplantation), Nantes University, boulevard Jean Monnet, Nantes, France [2] Centre d'Investigation Clinique biothérapie, Labex Transplantex, boulevard Jean Monnet, Nantes, France
| | - Yohann Foucher
- 1] Institut de Transplantation et de Recherche en Transplantation, ITUN, CHU Nantes, RTRS « Centaure », Nantes and Inserm U1064 (Immunointervention dans les Allo et Xénotransplantation), Nantes University, boulevard Jean Monnet, Nantes, France [2] EA 4275 SPHERE-Biostatistics, Clinical Research and Pharmaco-Epidemiology, Nantes University, Nantes, France
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Zhang Q, Fu Y, Liu R, Gong T, Sun X, Zhang ZR. Renal-specific delivery of prednisolone-folate conjugates for renal ischemia/reperfusion injury. RSC Adv 2014. [DOI: 10.1039/c4ra11160e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Prednisolone-folate conjugate (PFC) was synthesized to achieve renal-targeted delivery and specific intracellular release of prednisolone.
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Affiliation(s)
- Qin Zhang
- Key Laboratory of Drug Targeting & Drug Delivery Systems Ministry of Education
- West China School of Pharmacy Sichuan University
- Chengdu, China
| | - Yao Fu
- Key Laboratory of Drug Targeting & Drug Delivery Systems Ministry of Education
- West China School of Pharmacy Sichuan University
- Chengdu, China
| | - Renhe Liu
- Department of Chemistry
- The Scripps Research Institute
- La Jolla, USA
| | - Tao Gong
- Key Laboratory of Drug Targeting & Drug Delivery Systems Ministry of Education
- West China School of Pharmacy Sichuan University
- Chengdu, China
| | - Xun Sun
- Key Laboratory of Drug Targeting & Drug Delivery Systems Ministry of Education
- West China School of Pharmacy Sichuan University
- Chengdu, China
| | - Zhi-Rong Zhang
- Key Laboratory of Drug Targeting & Drug Delivery Systems Ministry of Education
- West China School of Pharmacy Sichuan University
- Chengdu, China
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21
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Gentle ME, Shi S, Daehn I, Zhang T, Qi H, Yu L, D'Agati VD, Schlondorff DO, Bottinger EP. Epithelial cell TGFβ signaling induces acute tubular injury and interstitial inflammation. J Am Soc Nephrol 2013; 24:787-99. [PMID: 23539761 DOI: 10.1681/asn.2012101024] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
TGFβ signaling plays a central role in the development of acute and chronic kidney diseases. Previous in vivo studies involved systemic alteration of TGFβ signaling, however, limiting conclusions about the direct role of TGFβ in tubular cell injury. Here, we generated a double transgenic mouse that inducibly expresses a ligand-independent constitutively active TGFβ receptor type 1 (TβR1) kinase specifically in tubular epithelial cells, with expression restricted by the Pax8 promoter. In this model, activation of TGFβ signaling in the tubular epithelium alone was sufficient to cause AKI characterized by marked tubular cell apoptosis and necrosis, oxidative stress, dedifferentiation and regenerative cell proliferation, reduced renal function, and interstitial accumulation of inflammatory cells. This tubular injury was associated with mitochondrial-derived generation of reactive oxygen species (ROS), but cell damage and apoptosis were partially independent of mitochondrial-derived ROS. TβR1 signaling-induced tubular injury also associated with significant leukocyte infiltration consisting of F4/80(+) macrophages, CD11c(+) F4/80(+) dendritic cells, CD11c(+) F4/80(-) Ly6C(high) dendritic cells/monocytes, and T cells. Inhibition of mitochondrial-derived ROS significantly reduced accumulation of CD11c(+) F4/80(+) dendritic cells and T cells, suggesting a role for ROS in the activation and recruitment of the adaptive immune response to tubular injury. Taken together, these results suggest that TGFβ signaling in the tubular epithelium alone is sufficient to cause acute tubular injury and inflammation; therefore, TGFβ may be a mechanistic link between acute injury and chronic progression of kidney disease.
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Affiliation(s)
- Madeleine E Gentle
- Division of Nephrology, Department of Medicine, Mount Sinai School of Medicine, One Gustave Levy Place, New York, NY 10029, USA
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22
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Basic research: Kidney-specific antioxidant targeting for renal ischemic injury. Nat Rev Nephrol 2012; 8:194. [PMID: 22349486 DOI: 10.1038/nrneph.2012.31] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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