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Sadeghmanesh F, Eidi A, Mortazavi P, Oryan S. Nanoselenium attenuates renal ischemia-reperfusion injury in rats. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024; 397:2297-2310. [PMID: 37819388 DOI: 10.1007/s00210-023-02723-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 09/13/2023] [Indexed: 10/13/2023]
Abstract
Using selenium (Se) nanoparticles has received attention in recent years because of their therapeutic benefits due to their anticancer, antioxidant, anti-inflammatory, and anti-diabetic effects. This research was conducted to evaluate the possible protective impact of nano-Se on renal unilateral ischemia/reperfusion injury (uIRI) in adult male Wistar rats. Using clamping of the left renal pedicle within 45 min uIRI was induced. The animals were randomly divided into nine groups of control, nano-Se (0.25, 0.5, and 1 mg/kg bw/day) alone, uIRI control, and uIRI rats administrated with nano-Se. At 30 days after treatment, the animals were sacrificed to be assessed biochemically and histopathologically. Nano-Se in uIRI groups have significantly decreased serum creatinine, urea levels, renal histological damage, and increased antioxidant status. Also, our findings demonstrated that the administration of nano-Se caused a significant decrease in the immunoreactivity level of the epidermal growth factor (EGF) and EGFR expression (EGF receptor) in the renal tissue of the uIRI rats. Therefore, nano-Se possesses renoprotective effects, and this effect might be attributable to its antioxidant and free radical scavenger effects. These renoprotective effects may depend on the decreased EGF immunoreactivity level and EGFR expression in the kidney tissue and improve the structure of the kidney tissue. Thus, our research provided biochemical and histological data supporting the potential clinical use of nano-Se for the treatment of certain kidney disorders.
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Affiliation(s)
- Farzaneh Sadeghmanesh
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Akram Eidi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Pejman Mortazavi
- Department of Pathology, Faculty of Specialized Veterinary Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
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Campbell RE, Chen CH, Edelstein CL. Overview of Antibiotic-Induced Nephrotoxicity. Kidney Int Rep 2023; 8:2211-2225. [PMID: 38025228 PMCID: PMC10658282 DOI: 10.1016/j.ekir.2023.08.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 08/14/2023] [Accepted: 08/21/2023] [Indexed: 12/01/2023] Open
Abstract
Drug-induced nephrotoxicity accounts for up to 60% of cases of acute kidney injury (AKI) in hospitalized patients and is associated with increased morbidity and mortality in both adults and children. Antibiotics are one of the most common causes of drug-induced nephrotoxicity. Mechanisms of antibiotic-induced nephrotoxicity include glomerular injury, tubular injury or dysfunction, distal tubular obstruction from casts, and acute interstitial nephritis (AIN) mediated by a type IV (delayed-type) hypersensitivity response. Clinical manifestations of antibiotic-induced nephrotoxicity include acute tubular necrosis (ATN), AIN, and Fanconi syndrome. Given the potential nephrotoxic effects of antibiotics on critically ill patients, the use of novel biomarkers can provide information to optimize dosing and duration of treatment and can help prevent nephrotoxicity when traditional markers, such as creatinine, are unreliable. Use of novel kidney specific biomarkers, such as cystatin C and urinary kidney injury molecule-1 (KIM-1), may result in earlier detection of AKI, dose adjustment, or discontinuation of antibiotic and development of nonnephrotoxic antibiotics.
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Affiliation(s)
- Ruth E. Campbell
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Chang Huei Chen
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Charles L. Edelstein
- Division of Renal Diseases and Hypertension, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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3
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Eslamifar Z, Moridnia A, Sabbagh S, Ghaffaripour R, Jafaripour L, Behzadifard M. Ameliorative Effects of Gallic Acid on Cisplatin-Induced Nephrotoxicity in Rat Variations of Biochemistry, Histopathology, and Gene Expression. BIOMED RESEARCH INTERNATIONAL 2021; 2021:2195238. [PMID: 34746299 PMCID: PMC8564201 DOI: 10.1155/2021/2195238] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 09/18/2021] [Accepted: 09/21/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Cisplatin is a powerful chemotherapeutic drug mainly used in the treatment of solid tumors. Aggregation of the drug in renal proximal tubule cells causes nephrotoxicity and renal failure. Investigations showed nephrotoxicity as Cisplatin's dose-limiting side effect. One of the Cisplatin toxicity mechanisms is generation of reactive oxygen species, which leads to oxidative stress and renal damage. The purpose of this study was evaluation of the modulating effects of Gallic acid on Cisplatin-induced variations including Caspase-3 and Clusterin expression and histopathological and biochemical parameters in adult male Wistar rats. METHOD Rats were kept under standard condition of temperature, light, and humidity. The animals were divided into 4 groups: GpI: control group (received distilled water for 10 days); GpII: Gallic acid (alone) (50 mg/kg bw, once a day for 10 days); GpIII: Cisplatin (alone), single dose (6 mg/kg bw, I.P. on 5th day of study); GpIV: Gallic acid (50 mg/kg bw, once a day for 10 days) and also injected with single dose of Cisplatin (6 mg/kg bw, I.P., on 5th day of study). After 10 days, all rats were anaesthetized and plasma collected to estimate urea, creatinine, and uric acid. The right kidneys were removed for the study of gene expression and biochemical parameters. The left kidneys were used for histopathological studies. RESULTS The Cisplatin-induced nephrotoxicity was evident from the elevated levels of creatinine, urea, uric acid, and renal tissue MDA and also decreased levels of SOD, CAT, GPX, and GSH in renal tissue. Administration of Gallic acid significantly modulated nephrotoxicity markers, gene expression variations, and histopathological damage. CONCLUSION Outcomes of the present investigation suggest that Gallic acid provides protection against CP-induced nephrotoxicity, but for application in people, further studies are needed.
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Affiliation(s)
- Zahra Eslamifar
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Dezful University of Medical Sciences, Dezful, Iran
| | - Abbas Moridnia
- Department of Immunology, School of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Susan Sabbagh
- Department of Anatomy, Faculty of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Reza Ghaffaripour
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Dezful University of Medical Sciences, Dezful, Iran
| | - Leila Jafaripour
- Department of Anatomy, Faculty of Medicine, Dezful University of Medical Sciences, Dezful, Iran
| | - Mahin Behzadifard
- Department of Medical Laboratory Sciences, School of Paramedical Sciences, Dezful University of Medical Sciences, Dezful, Iran
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Abstract
Drug induced kidney injury is one of the leading causes of failure of drug development programs in the clinic. Early prediction of renal toxicity potential of drugs is crucial to the success of drug candidates in the clinic. The dynamic nature of the functioning of the kidney and the presence of drug uptake proteins introduce additional challenges in the prediction of renal injury caused by drugs. Renal injury due to drugs can be caused by a wide variety of mechanisms and can be broadly classified as toxic or obstructive. Several biomarkers are available for in vitro and in vivo detection of renal injury. In vitro static and dynamic (microfluidic) cellular models and preclinical models can provide valuable information regarding the toxicity potential of drugs. Differences in pharmacology and subsequent disconnect in biomarker response, differences in the expression of transporter and enzyme proteins between in vitro to in vivo systems and between preclinical species and humans are some of the limitations of current experimental models. The progress in microfluidic (kidney-on-chip) platforms in combination with the ability of 3-dimensional cell culture can help in addressing some of these issues in the future. Finally, newer in silico and computational techniques like physiologically based pharmacokinetic modeling and machine learning have demonstrated potential in assisting prediction of drug induced kidney injury.
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Affiliation(s)
- Priyanka Kulkarni
- Department of Drug Metabolism and Pharmacokinetics, Millennium Pharmaceuticals, a fully owned subsidiary of Takeda Pharmaceuticals, Cambridge, MA, USA
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Neurotoxic, Hepatotoxic and Nephrotoxic Effects of Tramadol Administration in Rats. J Mol Neurosci 2020; 70:1934-1942. [PMID: 32440822 DOI: 10.1007/s12031-020-01592-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Accepted: 05/13/2020] [Indexed: 12/31/2022]
Abstract
The current study was performed to study the tramadol HCL toxic effects on the brain, liver, and kidney of adult male rats. Forty male adult albino rats were divided into 4 groups; the first one was considered as a control group, the others were orally administrated with 25, 50, and 100 b.wt. representing therapeutic, double therapeutic, and 4 times therapeutic doses, respectively, of tramadol HCL daily for 1 month. Serum and brain, hepatic, and renal tissues were collected for biochemical and molecular investigations. Tramadol HCL resulted in a significant increase in the brain serotonin, 8-hydroxy-2'-deoxyguanosine (8-OHdG), and malonyldialdehyde (MDA) levels with a significant decrease in the reduced glutathione (GSH), catalase (CAT), and superoxide dismutase (SOD) activities. At the same line, hepatic and renal 8-OHdG and MDA levels showed a significant increase with a significant decrease in reduced glutathione (GSH), CAT, and SOD activities. In addition, hepatic and renal function parameters including serum alanine amino transferase (ALT), aspartate amino transferase (AST), urea, and creatinine were increased in a dose-dependent manner. At the molecular levels, hepatic cytochrome P5402E1 (CYP2E1), renal Kidney Injury Molecule-1 (KIM-1), and tissue inhibitor of metalloproteinase-1 (TIMP-1) showed also a significant increase in the expression levels. Histopathological evaluation of the brain confirmed the above biochemical results. In conclusion, tramadol HCL induced neurotoxic, hepatotoxic, and nephrotoxic effects in a manner relative to its concentration by affecting brain serotonin levels and hepatic and renal function, with the production of DNA damage and oxidative stress.
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Evaluation of Fetal and Maternal Vancomycin-Induced Kidney Injury during Pregnancy in a Rat Model. Antimicrob Agents Chemother 2019; 63:AAC.00761-19. [PMID: 31332061 DOI: 10.1128/aac.00761-19] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Accepted: 07/11/2019] [Indexed: 12/18/2022] Open
Abstract
Previous literature suggests that maternal vancomycin crosses the placental barrier to the fetus. Further, early animal studies indicated that kidney injury was not observed in the progeny. These studies were conducted prior to the availability of sensitive biomarkers for kidney injury. Therefore, a previous finding of no renal damage to the infant may be misleading. Vancomycin was administered intravenously to pregnant rats at a dose of 250 mg/kg of body weight/day (N = 6 per trimester) on three consecutive gestational days (GD) during trimesters 1, 2, and 3 (T1, T2, and T3, respectively) in three independent cohorts. The dams carried to term and delivered vaginally on GD 21. Kidneys were harvested from dams and pups and homogenized. Samples were prepared by protein precipitation and injected in a liquid chromatography tandem mass spectrometer, and vancomycin was quantified. The kidney tissue homogenate from dams and pups were analyzed for kidney injury molecule-1 (KIM-1). As trimesters progressed, the quantity of vancomycin increased linearly in the kidneys of both rat dams and pups (P < 0.0001 for T1 and T3, P < 0.0001 for T2 and T3, and P < 0.0001 for T3 and T3 control for both rat dams and pups). KIM-1 concentrations in pup kidneys were significantly higher when dams were administered vancomycin in trimesters 1 (P = 0.0001) and 2 (P = 0.0024) than in controls in trimester 3. Data demonstrate persistence of vancomycin in maternal and rat pup kidneys in all three trimesters of pregnancy with associated damage to the kidney, as indicated by expression of KIM-1.
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Abstract
Blood urea nitrogen and serum creatinine are imperfect markers of kidney function because they are influenced by many renal and nonrenal factors independent of kidney function. A biomarker that is released directly into the blood or urine by the kidney in response to injury may be a better early marker of drug-induced kidney toxicity than blood urea nitrogen and serum creatinine. Urine albumin and urine protein, as well as urinary markers kidney injury molecule-1 (KIM-1), β2-microglobulin (B2M), cystatin C, clusterin, and trefoil factor-3 (TFF-3) have been accepted by the Food and Drug Administration and European Medicines Agency as highly sensitive and specific urinary biomarkers to monitor drug-induced kidney injury in preclinical studies and on a case-by-case basis in clinical trials. Other biomarkers of drug-induced kidney toxicity that have been detected in the urine of rodents or patients include IL-18, neutrophil gelatinase-associated lipocalin, netrin-1, liver-type fatty acid-binding protein (L-FABP), urinary exosomes, and TIMP2 (insulin-like growth factor-binding protein 7)/IGFBP7 (insulin-like growth factor-binding protein 7), also known as NephroCheck, the first Food and Drug Administration-approved biomarker testing platform to detect acute kidney injury in patients. In the future, a combined use of functional and damage markers may advance the field of biomarkers of drug-induced kidney toxicity. Earlier detection of drug-induced kidney toxicity with a kidney-specific biomarker may result in the avoidance of nephrotoxic agents in clinical studies and may allow for earlier intervention to repair damaged kidneys.
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Affiliation(s)
- Benjamin R Griffin
- Division of Renal Diseases and Hypertension, University of Colorado at Denver, Aurora, Colorado
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8
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Cisplatin-Induced Rodent Model of Kidney Injury: Characteristics and Challenges. BIOMED RESEARCH INTERNATIONAL 2018; 2018:1462802. [PMID: 30276200 PMCID: PMC6157122 DOI: 10.1155/2018/1462802] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 06/20/2018] [Indexed: 12/20/2022]
Abstract
Cisplatin is an antitumor drug used in the treatment of a wide variety of malignancies. However, its primary dose-limiting side effect is kidney injury, which is a major clinical concern. To help understand mechanisms involved in the development of kidney injury, cisplatin rodent model has been developed. Given the complex pathogenesis of kidney injury, which involves both local events in the kidney and interconnected and interdependent systemic effects in the body, cisplatin rodent model is indispensable in the investigation of underlying mechanisms and potential treatment strategies of both acute and chronic kidney injury. Cisplatin rodent model is well appreciated and widely used model due to its simplicity. It has many similarities to human cisplatin nephrotoxicity, which are mentioned in the paper. In spite of its simplicity and wide applicability, there are also traps that need to be taken into account when using cisplatin model. The present paper is aimed at giving a concise insight into the complex characteristics of cisplatin rodent model and heterogeneity of cisplatin dosage regimens as well as outlining factors that can severely influence the outcome of the model and the study. Challenges for future research are also mentioned.
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Selective Inhibition on Organic Cation Transporters by Carvedilol Protects Mice from Cisplatin-Induced Nephrotoxicity. Pharm Res 2018; 35:204. [PMID: 30191328 DOI: 10.1007/s11095-018-2486-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 08/24/2018] [Indexed: 10/28/2022]
Abstract
PURPOSE The organic cation transporters (OCTs) and multidrug and toxin extrusions (MATEs), located in the basolateral and apical membrane of proximal tubular cells respectively, are crucial determinants of renal elimination and/or toxicity of cationic drugs such as cisplatin. The purpose of this study was to discover selective OCT inhibitors over MATEs, and explore their potential to protect against cisplatin-induced nephrotoxicity that is clinically common. METHODS The inhibition by select compounds on the uptake of the probe substrate metformin was assessed in HEK293 cells overexpressing human OCT2, OCT1, MATE1, MATE2-K, and mouse Oct2, Oct1, and Mate1. Furthermore, the effects of carvedilol on organic cation transporter-mediated cellular and renal accumulation of metformin and cisplatin, and particularly the toxicity associated with cisplatin, were investigated in HEK293 cells and mice. RESULTS Five selective OCT inhibitors were identified through the screening of forty-one drugs previously reported as the inhibitors of OCTs and/or MATEs. Among them, carvedilol showed the most selectivity on OCTs over MATEs (IC50: 3.6 μM for human OCT2, 103 μM for human MATE1 and 202 μM for human MATE2-K) in the cellular assays in vitro, with the selectivity in mice as well. Moreover, carvedilol treatment could significantly decrease cisplatin accumulation and ameliorate its toxicity both in vitro in cells and in vivo in mouse kidney. CONCLUSIONS Our data indicate that selective inhibition of OCTs by carvedilol may protect from cisplatin-induced nephrotoxicity by restraining the cellular entry of cisplatin via OCTs, while having no impact on its elimination through MATEs.
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Giordano M, Tripathi KP, Guarracino MR. Ensemble of rankers for efficient gene signature extraction in smoke exposure classification. BMC Bioinformatics 2018. [PMID: 29536823 PMCID: PMC5850943 DOI: 10.1186/s12859-018-2035-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Background System toxicology aims at understanding the mechanisms used by biological systems to respond to toxicants. Such understanding can be leveraged to assess the risk of chemicals, drugs, and consumer products in living organisms. In system toxicology, machine learning techniques and methodologies are applied to develop prediction models for classification of toxicant exposure of biological systems. Gene expression data (RNA/DNA microarray) are often used to develop such prediction models. Results The outcome of the present work is an experimental methodology to develop prediction models, based on robust gene signatures, for the classification of cigarette smoke exposure and cessation in humans. It is a result of the participation in the recent sbv IMPROVER SysTox Computational Challenge. By merging different gene selection techniques, we obtain robust gene signatures and we investigate prediction capabilities of different off-the-shelf machine learning techniques, such as artificial neural networks, linear models and support vector machines. We also predict six novel genes in our signature, and firmly believe these genes have to be further investigated as biomarkers for tobacco smoking exposure. Conclusions The proposed methodology provides gene signatures with top-ranked performances in the prediction of the investigated classification methods, as well as new discoveries in genetic signatures for bio-markers of the smoke exposure of humans. Electronic supplementary material The online version of this article (10.1186/s12859-018-2035-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Maurizio Giordano
- High Performance Computing and Networking Institute (ICAR), National Council of Research (CNR), Naples, Italy.
| | - Kumar Parijat Tripathi
- High Performance Computing and Networking Institute (ICAR), National Council of Research (CNR), Naples, Italy
| | - Mario Rosario Guarracino
- High Performance Computing and Networking Institute (ICAR), National Council of Research (CNR), Naples, Italy
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11
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Kokura K, Kuromi Y, Endo T, Anzai N, Kazuki Y, Oshimura M, Ohbayashi T. A kidney injury molecule-1 (Kim-1) gene reporter in a mouse artificial chromosome: the responsiveness to cisplatin toxicity in immortalized mouse kidney S3 cells. J Gene Med 2018; 18:273-281. [PMID: 27591740 PMCID: PMC5095820 DOI: 10.1002/jgm.2925] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 08/29/2016] [Accepted: 08/29/2016] [Indexed: 02/05/2023] Open
Abstract
Background Kidney injury molecule‐1 (Kim‐1) has been validated as a urinary biomarker for acute and chronic renal damage. The expression of Kim‐1 mRNA is also activated by acute kidney injury induced by cisplatin in rodents and humans. To date, the measurement of Kim‐1 expression has not fully allowed the detection of in vitro cisplatin nephrotoxicity in immortalized culture cells, such as human kidney‐2 cells and immortalized proximal tubular epithelial cells. Methods We measured the augmentation of Kim‐1 mRNA expression after the addition of cisplatin using immortalized S3 cells established from the kidneys of transgenic mice harboring temperature‐sensitive large T antigen from Simian virus 40. Results A mouse Kim‐1 gene luciferase reporter in conjunction with an Hprt gene reporter detected cisplatin‐induced nephrotoxicity in S3 cells. These two reporter genes were contained in a mouse artificial chromosome, and two luciferases that emitted different wavelengths were used to monitor the respective gene expression. However, the Kim‐1 reporter gene failed to respond to cisplatin in A9 fibroblast cells that contained the same reporter mouse artificial chromosome, suggesting cell type‐specificity for activation of the reporter. Conclusions We report the feasibility of measuring in vitro cisplatin nephrotoxicity using a Kim‐1 reporter gene in S3 cells.
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Affiliation(s)
- Kenji Kokura
- Chromosome Engineering Research Center (CERC), Tottori University, Tottori, Japan.,Division of Human Genome Science, Department of Molecular and Cellular Biology, School of Life Sciences, Faculty of Medicine, Tottori University, Tottori, Japan
| | - Yasushi Kuromi
- Tottori Industrial Promotion Organization, Tottori, Tottori, Japan.,Division of Laboratory Animal Science, Research Center for Bioscience and Technology, Tottori University, Tottori, Japan
| | - Takeshi Endo
- Tottori Industrial Promotion Organization, Tottori, Tottori, Japan
| | - Naohiko Anzai
- Department of Pharmacology and Toxicology, Dokkyo Medical University School of Medicine, Tochigi, Japan.,Department of Pharmacology, Chiba University Graduate School of Medicine, Chiba, Japan
| | - Yasuhiro Kazuki
- Chromosome Engineering Research Center (CERC), Tottori University, Tottori, Japan
| | - Mitsuo Oshimura
- Chromosome Engineering Research Center (CERC), Tottori University, Tottori, Japan
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O'Donnell JN, Rhodes NJ, Miglis CM, Catovic L, Liu J, Cluff C, Pais G, Avedissian S, Joshi MD, Griffin B, Prozialeck W, Gulati A, Lodise TP, Scheetz MH. Dose, duration, and animal sex predict vancomycin-associated acute kidney injury in preclinical studies. Int J Antimicrob Agents 2017; 51:239-243. [PMID: 28803934 DOI: 10.1016/j.ijantimicag.2017.08.012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Revised: 07/25/2017] [Accepted: 08/03/2017] [Indexed: 01/10/2023]
Abstract
BACKGROUND Although the exposure-dependent efficacy thresholds of vancomycin have been probed, less is known about acute kidney injury (AKI) thresholds for this drug. Sensitive urinary biomarkers, such as kidney injury molecule 1 (KIM-1), have shown high sensitivity and specificity for vancomycin-associated AKI. The aims of the study were to determine if there were dose-response curves with urinary KIM-1, and to evaluate the impact of therapy duration and sex on observed relationships. METHODS A systematic review was conducted via PubMed/MEDLINE. Data were compiled from preclinical studies that reported individual subject data for urinary KIM-1 concentrations, vancomycin dose (mg/kg), duration of treatment, and sex. Sigmoidal Hill-type models were fit to the individual dose-response data. RESULTS A total of 15 studies were identified, 6 of which reported vancomycin dose and KIM-1 data. Of these, three included individual animal-level data suitable for analysis. For all pooled rats, increasing total daily vancomycin doses displayed a dose-response curve with urinary KIM-1 concentrations (50% maximal toxic response=130.4 mg/kg/day). Dose-response curves were shifted left for females vs. males (P = 0.05) and for long (i.e. ≥7 days) vs. short (i.e. <4 days) duration of vancomycin therapy (P=0.02). CONCLUSIONS The collective findings demonstrate a clear dose-response relationship between vancomycin dose and AKI. As these analyses focused exclusively on dose-response relationships, additional preclinical data are needed to more clearly define vancomycin exposures that predict the onset of AKI.
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Affiliation(s)
- J Nicholas O'Donnell
- Department of Pharmacy Practice, Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Nathaniel J Rhodes
- Department of Pharmacy Practice, Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Cristina M Miglis
- Department of Pharmacy Practice, Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Lejla Catovic
- Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Jiajun Liu
- Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Cameron Cluff
- Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Gwendolyn Pais
- Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Sean Avedissian
- Department of Pharmacy Practice, Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Medha D Joshi
- Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Brooke Griffin
- Department of Pharmacy Practice, Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Walter Prozialeck
- Midwestern University Department of Pharmacology, Downers Grove, IL, USA
| | - Anil Gulati
- Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA
| | - Thomas P Lodise
- Albany College of Pharmacy, Department of Pharmacy Practice, Albany, NY, USA
| | - Marc H Scheetz
- Department of Pharmacy Practice, Midwestern University Chicago College of Pharmacy, Downers Grove, IL, USA.
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Silva SCT, de Almeida LA, Soares S, Grossi MF, Valente AMS, Tagliati CA. In vitro study of putative genomic biomarkers of nephrotoxicity through differential gene expression using gentamicin. Toxicol Mech Methods 2017; 27:435-441. [PMID: 28372472 DOI: 10.1080/15376516.2017.1313345] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Drug-induced nephrotoxicity is one of the most frequently observed effects in long-term pharmacotherapy. The effects of nephrotoxicity are commonly discovered later due to a lack of sensitivity in in vivo methods. Therefore, researchers have tried to develop in vitro alternative methods for early identification of toxicity. In this study, LLC-PK1 cells were exposed to gentamicin through MTT and trypan blue assay. Concentrations of 4 (low), 8 (medium) and 12 (high) mM, were used to evaluate differential gene expression. A panel of genes was selected based on gene expression changes. The search for sequences of mRNA encoding proteins previously associated with kidney damage was conducted in the databases of the National Center for Biotechnology Information (USA). RNA was extracted from the cells, and RT-qPCR was performed to evaluate differential expression profiles of the selected genes. Among the 11 analyzed genes, four proved to be differentially up-regulated in cells exposed to gentamicin: HAVcr1, caspase 3, ICAM-1 and EXOC6. According to this study's results, we suggest that these genes play an important role in the mechanism of in vitro nephrotoxicity caused by gentamicin and can be used as early in vitro biomarkers to identify nephrotoxicity when developing safer drugs.
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Affiliation(s)
- Sarah Cristina Teixeira Silva
- a Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Laboratório de Toxicologia Experimental in vitro , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , Brazil
| | - Leonardo Augusto de Almeida
- b Departamento de Microbiologia e Imunologia, Laboratório de Imunologia, Instituto de Ciências Biomédicas , Universidade Federal de Alfenas (UniFal) , Alfenas , Brazil
| | - Stellamaris Soares
- a Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Laboratório de Toxicologia Experimental in vitro , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , Brazil
| | - Marina Felipe Grossi
- a Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Laboratório de Toxicologia Experimental in vitro , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , Brazil
| | - Anete Maria Santana Valente
- c Departamento de Nutrição , Universidade Federal de Juiz de Fora (UFJF) - Campus Governador Valadares , Governador Valadares , Brazil
| | - Carlos Alberto Tagliati
- a Departamento de Análises Clínicas e Toxicológicas, Faculdade de Farmácia, Laboratório de Toxicologia Experimental in vitro , Universidade Federal de Minas Gerais (UFMG) , Belo Horizonte , Brazil
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Abstract
Chemotherapy-related cardiac dysfunction (CRCD) has challenged clinicians to hesitate in using cardiotoxic agents such as anthracycline and several protein kinase inhibitors. As early detection of CRCD and timely cessation of cardiotoxic agents became a strategy to avoid CRCD, cardiac troponin and natriuretic peptide are measured to monitor cardiotoxicity; however, there are inconsistencies in their predictability of CRCD. Alternative biomarkers have been researched extensively for potential use as more sensitive and accurate biomarkers. The mechanisms of CRCD and previous studies on traditional and novel biomarkers for CRCD are examined to enlighten future direction of investigation in this combined biology.
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Affiliation(s)
- Yong-Hyun Kim
- Department of Cardiovascular Medicine, Kaufman Center for Heart Failure, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA; Cardiovascular Medicine, Korea University College of Medicine, Korea University Medical Center Ansan Hospital, 123 Jeokgeum-ro, Ansan-si 15355, Korea
| | - Jennifer Kirsop
- Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
| | - Wai Hong Wilson Tang
- Department of Cardiovascular Medicine, Kaufman Center for Heart Failure, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, USA; Department of Cellular and Molecular Medicine, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA; Center for Clinical Genomics, Cleveland Clinic, Cleveland, OH, USA.
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15
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Zhou X, Qu Z, Zhu C, Lin Z, Huo Y, Wang X, Wang J, Li B. Identification of urinary microRNA biomarkers for detection of gentamicin-induced acute kidney injury in rats. Regul Toxicol Pharmacol 2016; 78:78-84. [PMID: 27074385 DOI: 10.1016/j.yrtph.2016.04.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/06/2016] [Accepted: 04/07/2016] [Indexed: 11/17/2022]
Abstract
MicroRNAs (miRNAs) have been recently recognized as promising non-invasive biomarkers for detecting the organ injuries. To further understand the sensibility and reliability of miRNA measurements in urine sample for predicting drug-induced early nephrotoxicity, a global urinary miRNA expression analysis was performed in the rodent models with gentamicin-induced acute kidney injury (AKI). Male Wistar rats were daily administrated with gentamicin (0, 60, and 120 mg/kg) for up to 10 days by intraperitoneal injection, and the miRNA profiling of animal urine samples were subsequently analyzed using TaqMan(®) Array Rodent miRNA Cards. The results showed that four miRNAs (mmu-miR-138-5p, mmu-miR-1971, mmu-miR-218-1-3p, and rno-miR-489) were continuously increased in urine samples since day 4 after administration with gentamicin, which was not reflected by the standard markers such as serum creatinine (Cr) and urea nitrogen (BUN). Furthermore, other nine urinary miRNAs were increased in both 60 and 120 mg/kg groups on day 8. Receiver operator characteristics analysis demonstrated that the performance of these miRNAs with time- or dose-dependent increases were comparable to standard biomarkers (i.e. serum Cr and BUN), suggesting that the urinary miRNA panel can be used as potential biomarkers for the detection of gentamicin-induced AKI in rats. Moreover, the computer prediction analysis showed that these differentially expressed miRNAs were potentially targeted to many genes, which were mainly associated with the regulation of metabolic process and signaling. These data will improve the understanding and prediction of toxicology processes induced by nephrotoxicants.
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Affiliation(s)
- Xiaobing Zhou
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China
| | - Zhe Qu
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China
| | - Cong Zhu
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China
| | - Zhi Lin
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China
| | - Yan Huo
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China
| | - Xue Wang
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China
| | - Jufeng Wang
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China
| | - Bo Li
- National Center for Safety Evaluation of Drugs, National Institutes of Food and Drug Control, Hongda Middle Street A8, Beijing Economic and Technological Development Area, Beijing, 100176, China.
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Li S, Li C, Ryu HH, Lim SH, Jang WY, Jung S. Bacitracin Inhibits the Migration of U87-MG Glioma Cells via Interferences of the Integrin Outside-in Signaling Pathway. J Korean Neurosurg Soc 2016; 59:106-16. [PMID: 26962415 PMCID: PMC4783475 DOI: 10.3340/jkns.2016.59.2.106] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 01/15/2016] [Accepted: 01/21/2016] [Indexed: 11/27/2022] Open
Abstract
Objective Protein disulfide isomerase (PDI) acts as a chaperone on the cell surface, and it has been reported that PDI is associated with the tumor cell migration and invasion. The aims of this study are to investigate the anti-migration effect of bacitracin, which is an inhibitor of PDI, and the associated factor in this process. Methods U87-MG glioma cells were treated with bacitracin in 1.25, 2.5, 3.75, and 5.0 mM concentrations. Western blot with caspase-3 was applied to evaluate the cytotoxicity of bacitracin. Adhesion, morphology, migration assays, and organotypic brain-slice culture were performed to evaluate the effect of bacitracin to the tumor cell. Western blot, PCR, and gelatin zymography were performed to investigate the associated factors. Thirty glioma tissues were collected following immunohistochemistry and Western blot. Results Bacitracin showed a cytotoxicity in 3rd (p<0.05) and 4th (p<0.001) days, in 5.0 Mm concentration. The cell adhesion significantly decreased and the cells became a round shape after treated with bacitracin. The migration ability, the expression of phosphorylated focal adhesion kinase (p-FAK) and matrix metalloproteinase-2 (MMP-2) decreased in a bacitracin dose- and time-dependent manner. The U87-MG cells exhibited low-invasiveness in the 2.5 mM, compared with the untreated in organotypic brain-slice culture. PDI was expressed in the tumor margin, and significantly increased with histological glioma grades (p<0.001). Conclusion Bacitracin, as a functional inhibitor of PDI, decreased the phosphorylated FAK and the secreted MMP-2, which are the downstream of integrin and play a major role in cell migration and invasion, might become one of the feasible therapeutic strategies for glioblastoma.
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Affiliation(s)
- Songyuan Li
- Brain Tumor Research Laboratory and Department of Neurosurgery Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hopital and Medical School, Hwasun, Korea
| | - Chunhao Li
- Brain Tumor Research Laboratory and Department of Neurosurgery Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hopital and Medical School, Hwasun, Korea
| | - Hyang-Hwa Ryu
- Brain Tumor Research Laboratory and Department of Neurosurgery Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hopital and Medical School, Hwasun, Korea
| | - Sa-Hoe Lim
- Brain Tumor Research Laboratory and Department of Neurosurgery Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hopital and Medical School, Hwasun, Korea
| | - Woo-Youl Jang
- Brain Tumor Research Laboratory and Department of Neurosurgery Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hopital and Medical School, Hwasun, Korea
| | - Shin Jung
- Brain Tumor Research Laboratory and Department of Neurosurgery Chonnam National University Research Institute of Medical Sciences, Chonnam National University Hwasun Hopital and Medical School, Hwasun, Korea
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Kim H, Kim JH, Kim SY, Jo D, Park HJ, Kim J, Jung S, Kim HS, Lee K. Meta-Analysis of Large-Scale Toxicogenomic Data Finds Neuronal Regeneration Related Protein and Cathepsin D to Be Novel Biomarkers of Drug-Induced Toxicity. PLoS One 2015; 10:e0136698. [PMID: 26335687 PMCID: PMC4559398 DOI: 10.1371/journal.pone.0136698] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 08/05/2015] [Indexed: 11/19/2022] Open
Abstract
Undesirable toxicity is one of the main reasons for withdrawing drugs from the market or eliminating them as candidates in clinical trials. Although numerous studies have attempted to identify biomarkers capable of predicting pharmacotoxicity, few have attempted to discover robust biomarkers that are coherent across various species and experimental settings. To identify such biomarkers, we conducted meta-analyses of massive gene expression profiles for 6,567 in vivo rat samples and 453 compounds. After applying rigorous feature reduction procedures, our analyses identified 18 genes to be related with toxicity upon comparisons of untreated versus treated and innocuous versus toxic specimens of kidney, liver and heart tissue. We then independently validated these genes in human cell lines. In doing so, we found several of these genes to be coherently regulated in both in vivo rat specimens and in human cell lines. Specifically, mRNA expression of neuronal regeneration-related protein was robustly down-regulated in both liver and kidney cells, while mRNA expression of cathepsin D was commonly up-regulated in liver cells after exposure to toxic concentrations of chemical compounds. Use of these novel toxicity biomarkers may enhance the efficiency of screening for safe lead compounds in early-phase drug development prior to animal testing.
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Affiliation(s)
- Hyosil Kim
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Ju-Hwa Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - So Youn Kim
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Deokyeon Jo
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Ho Jun Park
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Jihyun Kim
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Sungwon Jung
- Department of Genome Medicine and Science, School of Medicine, Gachon University, Incheon, Korea
- * E-mail: (HSK); (SJ)
| | - Hyun Seok Kim
- Severance Biomedical Science Institute, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- * E-mail: (HSK); (SJ)
| | - KiYoung Lee
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
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18
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Otava M, Shkedy Z, Talloen W, Verheyen GR, Kasim A. Identification of in vitro and in vivo disconnects using transcriptomic data. BMC Genomics 2015; 16:615. [PMID: 26282683 PMCID: PMC4539666 DOI: 10.1186/s12864-015-1726-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 06/26/2015] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Integrating transcriptomic experiments within drug development is increasingly advocated for the early detection of toxicity. This is partly to reduce costs related to drug failures in the late, and expensive phases of clinical trials. Such an approach has proven useful both in the study of toxicology and carcinogenicity. However, general lack of translation of in vitro findings to in vivo systems remains one of the bottle necks in drug development. This paper proposes a method for identifying disconnected genes between in vitro and in vivo toxicogenomic rat experiments. The analytical framework is based on the joint modeling of dose-dependent in vitro and in vivo data using a fractional polynomial framework and biclustering algorithm. RESULTS Most disconnected genes identified belonged to known pathways, such as drug metabolism and oxidative stress due to reactive metabolites, bilirubin increase, glutathion depletion and phospholipidosis. We also identified compounds that were likely to induce disconnect in gene expression between in vitro and in vivo toxicogenomic rat experiments. These compounds include: sulindac and diclofenac (both linked to liver damage), naphtyl isothiocyanate (linked to hepatoxocity), indomethacin and naproxen (linked to gastrointestinal problem and damage of intestines). CONCLUSION The results confirmed that there are important discrepancies between in vitro and in vivo toxicogenomic experiments. However, the contribution of this paper is to provide a tool to identify genes that are disconnected between the two systems. Pathway analysis of disconnected genes may improve our understanding of uncertainties in the mechanism of actions of drug candidates in humans, especially concerning the early detection of toxicity.
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Affiliation(s)
- Martin Otava
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Hasselt University, Martelarenlaan 32, Hasselt, 3500, Belgium.
| | - Ziv Shkedy
- Interuniversity Institute for Biostatistics and Statistical Bioinformatics, Hasselt University, Martelarenlaan 32, Hasselt, 3500, Belgium.
| | - Willem Talloen
- Janssen, Pharmaceutical companies of Johnson & Johnson, Turnhoutseweg 30, Beerse, 2340, Belgium.
| | | | - Adetayo Kasim
- Wolfson Research Institute for Health and Wellbeing, Durham University, University Boulevard, TS17 6BH Thornaby, Stockton-on-Tees, UK.
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Bandele OJ, Stine CB, Ferguson M, Black T, Olejnik N, Keltner Z, Evans ER, Crosby TC, Reimschuessel R, Sprando RL. Use of urinary renal biomarkers to evaluate the nephrotoxic effects of melamine or cyanuric acid in non-pregnant and pregnant rats. Food Chem Toxicol 2014; 74:301-8. [PMID: 25455896 PMCID: PMC11421682 DOI: 10.1016/j.fct.2014.10.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 10/03/2014] [Accepted: 10/13/2014] [Indexed: 11/18/2022]
Abstract
Although traditional assessments of renal damage detect loss of kidney function, urinary renal biomarkers are proposed to indicate early changes in renal integrity. The recent adulteration of infant formula and other milk-based foods with melamine revealed a link between melamine ingestion and nephropathy. Thus, the effects of melamine and related analogs (e.g., cyanuric acid) should be assessed in other potentially sensitive groups. We evaluated whether urinary Kim-1, clusterin, and osteopontin could detect the effects of high doses of melamine or cyanuric acid in pregnant and non-pregnant female rats gavaged with 1000 mg/kg bw/day for 10 days. We demonstrate that these biomarkers can differentiate the severity of effects induced by melamine or cyanuric acid. All melamine-treated animals experienced adverse effects; however, pregnant rats were most sensitive as indicated by increased SCr, BUN, and kidney weights, decreased body weight, and presence of renal crystals. These effects coincided with elevated urinary biomarker levels as early as day 2 of exposure. One cyanuric acid-treated rat displayed effects similar to melamine, including increased urinary biomarker levels. This work illustrates that these biomarkers can detect early effects of melamine or cyanuric acid crystal-induced nephropathy and further supports the use of urinary protein immunoassays as a powerful, non-invasive method to assess nephrotoxicity.
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Affiliation(s)
- O J Bandele
- Division of Toxicology, Office of Applied Research and Safety Assessment, CFSAN, U.S. FDA, Laurel, MD, United States.
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Zhou X, Ma B, Lin Z, Qu Z, Huo Y, Wang J, Li B. Evaluation of the usefulness of novel biomarkers for drug-induced acute kidney injury in beagle dogs. Toxicol Appl Pharmacol 2014; 280:30-5. [PMID: 25034533 DOI: 10.1016/j.taap.2014.07.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2014] [Revised: 06/27/2014] [Accepted: 07/03/2014] [Indexed: 11/30/2022]
Abstract
As kidney is a major target organ affected by drug toxicity, early detection of renal injury is critical in preclinical drug development. In past decades, a series of novel biomarkers of drug-induced nephrotoxicity were discovered and verified in rats. However, limited data regarding the performance of novel biomarkers in non-rodent species are publicly available. To increase the applicability of these biomarkers, we evaluated the performance of 4 urinary biomarkers including neutrophil gelatinase-associated lipocalin (NGAL), clusterin, total protein, and N-acetyl-β-D-glucosaminidase (NAG), relative to histopathology and traditional clinical chemistry in beagle dogs with acute kidney injury (AKI) induced by gentamicin. The results showed that urinary NGAL and clusterin levels were significantly elevated in dogs on days 1 and 3 after administration of gentamicin, respectively. Gene expression analysis further provided mechanistic evidence to support that NGAL and clusterin are potential biomarkers for the early assessment of drug-induced renal damage. Furthermore, the high area (both AUCs=1.000) under receiver operator characteristics (ROC) curve also indicated that NGAL and clusterin were the most sensitive biomarkers for detection of gentamicin-induced renal proximal tubular toxicity. Our results also suggested that NAG may be used in routine toxicity testing due to its sensitivity and robustness for detection of tissue injury. The present data will provide insights into the preclinical use of these biomarkers for detection of drug-induced AKI in non-rodent species.
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Affiliation(s)
- Xiaobing Zhou
- National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China; Graduate School of Peking Union Medical College, Dongcheng District, Beijing, 100730, China
| | - Ben Ma
- National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China
| | - Zhi Lin
- National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China
| | - Zhe Qu
- National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China
| | - Yan Huo
- National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China
| | - Jufeng Wang
- National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China
| | - Bo Li
- National Center for Safety Evaluation of Drugs, National Institutes for Food and Drug Control, A8 Hongda Middle Street, Beijing Economic-Technological Development Area, Beijing 100176, China; Graduate School of Peking Union Medical College, Dongcheng District, Beijing, 100730, China.
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21
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Protein disulfide isomerase: a promising target for cancer therapy. Drug Discov Today 2014; 19:222-40. [DOI: 10.1016/j.drudis.2013.10.017] [Citation(s) in RCA: 168] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 09/12/2013] [Accepted: 10/22/2013] [Indexed: 12/15/2022]
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Hu Z, Lausted C, Yoo H, Yan X, Brightman A, Chen J, Wang W, Bu X, Hood L. Quantitative liver-specific protein fingerprint in blood: a signature for hepatotoxicity. Am J Cancer Res 2014; 4:215-28. [PMID: 24465277 PMCID: PMC3900804 DOI: 10.7150/thno.7868] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Accepted: 12/04/2013] [Indexed: 02/06/2023] Open
Abstract
We discuss here a new approach to detecting hepatotoxicity by employing concentration changes of liver-specific blood proteins during disease progression. These proteins are capable of assessing the behaviors of their cognate liver biological networks for toxicity or disease perturbations. Blood biomarkers are highly desirable diagnostics as blood is easily accessible and baths virtually all organs. Fifteen liver-specific blood proteins were identified as markers of acetaminophen (APAP)-induced hepatotoxicity using three proteomic technologies: label-free antibody microarrays, quantitative immunoblotting, and targeted iTRAQ mass spectrometry. Liver-specific blood proteins produced a toxicity signature of eleven elevated and four attenuated blood protein levels. These blood protein perturbations begin to provide a systems view of key mechanistic features of APAP-induced liver injury relating to glutathione and S-adenosyl-L-methionine (SAMe) depletion, mitochondrial dysfunction, and liver responses to the stress. Two markers, elevated membrane-bound catechol-O-methyltransferase (MB-COMT) and attenuated retinol binding protein 4 (RBP4), report hepatic injury significantly earlier than the current gold standard liver biomarker, alanine transaminase (ALT). These biomarkers were perturbed prior to onset of irreversible liver injury. Ideal markers should be applicable for both rodent model studies and human clinical trials. Five of these mouse liver-specific blood markers had human orthologs that were also found to be responsive to human hepatotoxicity. This panel of liver-specific proteins has the potential to effectively identify the early toxicity onset, the nature and extent of liver injury and report on some of the APAP-perturbed liver networks.
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Qiu Y, Hong M, Li H, Tang N, Ma J, Hsu CH, Dong W. Time-series pattern of gene expression profile in gentamycin-induced nephrotoxicity. Toxicol Mech Methods 2013; 24:142-50. [PMID: 24274596 DOI: 10.3109/15376516.2013.869780] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
There have been many studies investigating the genomic biomarker and/or molecular mechanism of nephrotoxicity using microarray. However, most of these researches were carried out by studying gene expression changes at one specific time point. As gene expression varies with time and disease stage, the current study investigated the time-series pattern of gene expression in a rat model using a typical nephrotoxic compound. Rats were administrated with 80 mg/kg gentamycin or saline by intramuscular injection for 14 consecutive days followed by a 28-d recovery. Rats were scarified on D2, D4, D8, D15 and Recovery Day (R29), when kidneys were obtained for whole-genome microarray analysis and histological examination. Urine was collected at each necropsy for kidney injury molecular-1 (KIM-1) analysis. The KIM-1 detection and histological examination confirmed the nephrotoxicity. After differentially expression genes (DEGs) identification, there were 4360 and 4323 regulated genes for females and males, respectively. However, few overlapping expression genes co-regluated at each time point were found. By principle component analysis (PCA) and hierarchical cluster, the gene expression patterns were observed to be apparently associated with the disease stage. GO Annotation showed (1) immune response and related process, response to wounding, cell locomotion on D2; (2) cell death and apoptosis was also noted on D4; (3) processes of organic acid or carboxylic acid, apoptosis or cell death on D8 and D15; (4) processes of cell cycle, mitosis, division cell cycle on R29. In conclusion, the authors mapped the time-series gene expression patterns at the initiation, development and recovery stage of gentamycin-induced nephrotoxicity.
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Affiliation(s)
- Yunliang Qiu
- National Shanghai Center for New Drug Safety Evaluation and Research , Shanghai , China and
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Jeong JJ, Park N, Kwon YJ, Ye DJ, Moon A, Chun YJ. Role of annexin A5 in cisplatin-induced toxicity in renal cells: molecular mechanism of apoptosis. J Biol Chem 2013; 289:2469-81. [PMID: 24318879 DOI: 10.1074/jbc.m113.450163] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Annexin A5 belongs to a large family of calcium-binding and phospholipid-binding proteins and may act as an endogenous regulator of various pathophysiological processes. There is increasing evidence that annexin A5 is related to cytotoxicity, but the precise function of this protein has yet to be elucidated. In this study, we aimed to verify the function of annexin A5 in the apoptosis of renal epithelial cells. Real-time PCR and Western blot analysis, together with immunofluorescence analysis, showed that the expression of annexin A5 significantly increased in the presence of cisplatin in both human and rat renal epithelial cells. With regard to the mechanism of cisplatin-induced apoptosis, apoptosis-inducing factor (AIF) release into the cytosol was observed, and the underlying mechanism was identified as voltage-dependent anion channel (VDAC) oligomerization. Mitochondrial membrane potential (Δψm) was found to be greatly disrupted in cisplatin-treated cells. Moreover, cisplatin strongly induced translocation of annexin A5 into mitochondria. To understand the functional significance of annexin A5 in renal cell death, we used a siRNA-mediated approach to knock down annexin A5. Annexin A5 depletion by siRNA led to decreased annexin A5 translocation into mitochondria and significantly reduced VDAC oligomerization and AIF release. Annexin A5 siRNA also increased cell viability compared with the control. Moreover, expression of annexin A5 was induced by other nephrotoxicants such as CdCl2 and bacitracin. Taken together, our data suggest that annexin A5 may play a crucial role in cisplatin-induced toxicity by mediating the mitochondrial apoptotic pathway via the induction and oligomerization of VDAC.
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Affiliation(s)
- Jin-Joo Jeong
- From the College of Pharmacy, Chung-Ang University, Seoul 156-756 and
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Kwon YJ, Jung JJ, Park NH, Ye DJ, Kim D, Moon A, Chun YJ. Annexin a5 as a new potential biomarker for Cisplatin-induced toxicity in human kidney epithelial cells. Biomol Ther (Seoul) 2013; 21:190-5. [PMID: 24265863 PMCID: PMC3830116 DOI: 10.4062/biomolther.2013.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2013] [Revised: 05/11/2013] [Accepted: 05/14/2013] [Indexed: 12/11/2022] Open
Abstract
Cisplatin is a member of platinum-containing anti-cancer drugs that causes cross-linking of DNA and ultimately cancer cell apoptosis. The therapeutic function of cisplatin on various types of cancers has been widely reported but the side effects have been discovered together and nephrotoxicity has been regarded as major side effect of cisplatin. To select candidates for new sensitive nephrotoxicity biomarker, we performed proteomic analysis using 2-DE/MALDI-TOF-MS followed by cisplatin treatment in human kidney cell line, HK-2 cells, and compared the results to the gene profi le from microarray composed of genes changed in expression by cisplatin from formerly reported article. Annexin A5 has been selected to be the most potential candidate and it has been identifi ed using Western blot, RT-PCR and cell viability assay whether annexin A5 is available to be a sensitive nephrotoxic biomarker. Treatment with cisplatin on HK-2 cells caused the increase of annexin A5 expression in protein and mRNA levels. Overexpression of annexin A5 blocked HK-2 cell proliferation, indicating correlation between annexin A5 and renal cell toxicity. Taken together, these results suggest the possibility of annexin A5 as a new biomarker for cisplatin-mediated nephrotoxicity.
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Affiliation(s)
- Yeo-Jung Kwon
- College of Pharmacy, Chung-Ang University, Seoul 156-756
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Cianciolo R, Yoon L, Krull D, Stokes A, Rodriguez A, Jordan H, Cooper D, Falls JG, Cullen J, Kimbrough C, Berridge B. Gene expression analysis and urinary biomarker assays reveal activation of tubulointerstitial injury pathways in a rodent model of chronic proteinuria (Doxorubicin nephropathy). Nephron Clin Pract 2013; 124:1-10. [PMID: 24248038 DOI: 10.1159/000355542] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 09/08/2013] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Tubular atrophy and interstitial fibrosis are well-recognized sequelae of chronic proteinuria; however, little is known regarding the molecular pathways activated within tubulointerstitium in chronic proteinuric nephropathies. METHODS To investigate the molecular mechanisms of proteinuria-associated tubulointerstitial (TI) disease, doxorubicin nephropathy was induced in rats. Progression of disease was monitored with weekly urinary biomarker assays. Because histopathology revealed multifocal TI injury, immunodirected laser capture microdissection was used to identify and isolate injured proximal tubules, as indicated by kidney injury molecule-1 immunolabeling. Adjacent interstitial cells were harvested separately. Gene expression microarray, manual annotation of gene lists, and Gene Set Enrichment Analysis were performed. A subset of the regulated transcripts was validated by quantitative PCR and immunohistochemistry. RESULTS Severe proteinuria preceded tubular injury biomarkers by 1 week. Histology revealed multifocal, mild TI damage at 3 weeks, which progressed in severity at 5 weeks. Affymetrix microarray analysis revealed tissue-specific regulation of gene expression. Manual annotation of gene lists, gene set enrichment analysis, and urinary biomarker assays revealed similarities to pathways activated in direct TI injuries. This suggests commonalities amongst the molecular mechanisms of TI injury secondary to proteinuria, ischemia-reperfusion, and nephrotoxicity. © 2013 S. Karger AG, Basel.
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Affiliation(s)
- Rachel Cianciolo
- Safety Assessment, GlaxoSmithKline, Research Triangle Park, N.C., USA
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Ahuja V, Sharma S. Drug safety testing paradigm, current progress and future challenges: an overview. J Appl Toxicol 2013; 34:576-94. [PMID: 24777877 DOI: 10.1002/jat.2935] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 08/08/2013] [Accepted: 08/22/2013] [Indexed: 12/29/2022]
Abstract
Early assessment of the toxicity potential of new molecules in pharmaceutical industry is a multi-dimensional task involving predictive systems and screening approaches to aid in the optimization of lead compounds prior to their entry into development phase. Due to the high attrition rate in the pharma industry in last few years, it has become imperative for the nonclinical toxicologist to focus on novel approaches which could be helpful for early screening of drug candidates. The need is that the toxicologists should change their classical approach to a more investigative approach. This review discusses the developments that allow toxicologists to anticipate safety problems and plan ways to address them earlier than ever before. This includes progress in the field of in vitro models, surrogate models, molecular toxicology, 'omics' technologies, translational safety biomarkers, stem-cell based assays and preclinical imaging. The traditional boundaries between teams focusing on efficacy/ safety and preclinical/ clinical aspects in the pharma industry are disappearing, and translational research-centric organizations with a focused vision of bringing drugs forward safely and rapidly are emerging. Today's toxicologist should collaborate with medicinal chemists, pharmacologists, and clinicians and these value-adding contributions will change traditional toxicologists from side-effect identifiers to drug development enablers.
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Affiliation(s)
- Varun Ahuja
- Drug Safety Assessment, Novel Drug Discovery and Development, Lupin Limited (Research Park), 46A/47A, Nande Village, MulshiTaluka, Pune, 412 115, India
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Uehara T, Horinouchi A, Morikawa Y, Tonomura Y, Minami K, Ono A, Yamate J, Yamada H, Ohno Y, Urushidani T. Identification of metabolomic biomarkers for drug-induced acute kidney injury in rats. J Appl Toxicol 2013; 34:1087-95. [PMID: 24114878 DOI: 10.1002/jat.2933] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/20/2013] [Accepted: 08/21/2013] [Indexed: 01/31/2023]
Abstract
Nephrotoxicity is a common side effect observed during both nonclinical and clinical drug development investigations. The present study aimed to identify metabolomic biomarkers that could provide early and sensitive indication of nephrotoxicity in rats. Metabolomic analyses were performed using capillary electrophoresis-time-of-flight mass spectrometry on rat plasma collected at 9 and 24 h after a single dose of 2-bromoethylamine or n-phenylanthranilic acid and at 24 h after 7 days of repeated doses of gentamicin, cyclosporine A or cisplatin. Among a total of 169 metabolites identified, 3-methylhistidine (3-MH), 3-indoxyl sulfate (3-IS) and guanidoacetate (GAA) were selected as candidate biomarkers. The biological significance and reproducibility of the observed changes were monitored over time in acute nephrotoxicity model rats treated with a single dose of cisplatin, with the glomerular filtration rate monitored by determination of creatinine clearance. Increased plasma levels of 3-MH and 3-IS were related to a decline in glomerular filtration due to a renal failure. In contrast, the decrease in plasma GAA, which is synthesized from arginine and glycine in the kidneys, was considered to reflect decreased production due to renal malfunction. Although definitive validation studies are required to confirm their usefulness and reliability, 3-MH, 3-IS and GAA may prove to be valuable plasma biomarkers for monitoring nephrotoxicity in rats.
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Affiliation(s)
- Takeki Uehara
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan; Toxicogenomics Informatics Project, National Institute of Biomedical Innovation, Ibaraki, Osaka, Japan; Department of Veterinary Pathology, Graduate School of Agriculture and Biological Science, Osaka Prefecture University, Izumisano, Osaka, Japan
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Li Q, Guo D, Dong Z, Zhang W, Zhang L, Huang SM, Polli JE, Shu Y. Ondansetron can enhance cisplatin-induced nephrotoxicity via inhibition of multiple toxin and extrusion proteins (MATEs). Toxicol Appl Pharmacol 2013; 273:100-9. [PMID: 24001450 DOI: 10.1016/j.taap.2013.08.024] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/12/2013] [Accepted: 08/23/2013] [Indexed: 12/23/2022]
Abstract
The nephrotoxicity limits the clinical application of cisplatin. Human organic cation transporter 2 (OCT2) and multidrug and toxin extrusion proteins (MATEs) work in concert in the elimination of cationic drugs such as cisplatin from the kidney. We hypothesized that co-administration of ondansetron would have an effect on cisplatin nephrotoxicity by altering the function of cisplatin transporters. The inhibitory potencies of ondansetron on metformin accumulation mediated by OCT2 and MATEs were determined in the stable HEK-293 cells expressing these transporters. The effects of ondansetron on drug disposition in vivo were examined by conducting the pharmacokinetics of metformin, a classical substrate for OCTs and MATEs, in wild-type and Mate1-/- mice. The nephrotoxicity was assessed in the wild-type and Mate1-/- mice received cisplatin with and without ondansetron. Both MATEs, including human MATE1, human MATE2-K, and mouse Mate1, and OCT2 (human and mouse) were subject to ondansetron inhibition, with much greater potencies by ondansetron on MATEs. Ondansetron significantly increased tissue accumulation and pharmacokinetic exposure of metformin in wild-type but not in Mate1-/- mice. Moreover, ondansetron treatment significantly enhanced renal accumulation of cisplatin and cisplatin-induced nephrotoxicity which were indicated by increased levels of biochemical and molecular biomarkers and more severe pathohistological changes in mice. Similar increases in nephrotoxicity were caused by genetic deficiency of MATE function in mice. Therefore, the potent inhibition of MATEs by ondansetron enhances the nephrotoxicity associated with cisplatin treatment in mice. Potential nephrotoxic effects of combining the chemotherapeutic cisplatin and the antiemetic 5-hydroxytryptamine-3 (5-HT3) receptor antagonists, such as ondansetron, should be investigated in patients.
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Affiliation(s)
- Qing Li
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland at Baltimore, MD, USA; Institute of Clinical Pharmacology, Central South University, Hunan 410078, China
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Fuchs TC, Mally A, Wool A, Beiman M, Hewitt P. An Exploratory Evaluation of the Utility of Transcriptional and Urinary Kidney Injury Biomarkers for the Prediction of Aristolochic Acid–Induced Renal Injury in Male Rats. Vet Pathol 2013; 51:680-94. [DOI: 10.1177/0300985813498779] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The predictive value of different urinary and transcriptional biomarkers was evaluated in a proof-of-principle toxicology study in rats using aristolochic acid (AA), a known nephrotoxic agent. Male Wistar rats were orally dosed with 0.1, 1, or 10 mg/kg for 12 days. Urine was collected on days 1, 5, and 12 over 24 hours. Gene expression analysis was also conducted using quantitative real-time polymerase chain reaction and Illumina whole-genome chips. Protein biomarkers (Kim-1, Timp-1, vascular endothelial growth factor, osteopontin, clusterin, cystatin C, calbindin D-28K, β2-microglobulin, α–glutathione S-transferase, GSTY1b, RPA-1, and neutrophil gelatinase-associated lipocalin) were measured in these urine samples. Treatment with AA resulted in a slight dose- and/or time-dependent increase in urinary β2-microglobulin, lipocalin 2, and osteopontin before an increase in serum creatinine or serum urea nitrogen was observed. A strong decrease in urinary calbindin D-28K was also detected. The Compugen Ltd. prediction model scored both the 1- and 10-mg/kg AA dose groups as positive for nephrotoxicity despite the absence of renal histopathological changes. In addition, several previously described transcriptional biomarkers were identified as early predictors of renal toxicity as they were detected before morphological alterations had occurred. Altogether, these findings demonstrated the predictive values of renal biomarkers approved by the Food and Drug Administration, European Medicines Agency, and Pharmaceuticals & Medical Devices Agency in AA-induced renal injury in rats and confirmed the utility of renal transcriptional biomarkers for detecting progression of compound-induced renal injury in rats. In addition, several transcriptional biomarkers identified in this exploratory study could present early predictors of renal tubular epithelium injury in rats.
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Affiliation(s)
- T. C. Fuchs
- Merck Serono, Non-Clinical Safety, Darmstadt, Germany
| | - A. Mally
- Department of Toxicology, University of Wuerzburg, Wuerzburg, Germany
| | - A. Wool
- Compugen Ltd., Tel Aviv, Israel
| | | | - P. Hewitt
- Merck Serono, Non-Clinical Safety, Darmstadt, Germany
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Ness D, Ren Z, Gardai S, Sharpnack D, Johnson VJ, Brennan RJ, Brigham EF, Olaharski AJ. Leucine-rich repeat kinase 2 (LRRK2)-deficient rats exhibit renal tubule injury and perturbations in metabolic and immunological homeostasis. PLoS One 2013; 8:e66164. [PMID: 23799078 PMCID: PMC3682960 DOI: 10.1371/journal.pone.0066164] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 05/02/2013] [Indexed: 11/18/2022] Open
Abstract
Genetic evidence links mutations in the LRRK2 gene with an increased risk of Parkinson's disease, for which no neuroprotective or neurorestorative therapies currently exist. While the role of LRRK2 in normal cellular function has yet to be fully described, evidence suggests involvement with immune and kidney functions. A comparative study of LRRK2-deficient and wild type rats investigated the influence that this gene has on the phenotype of these rats. Significant weight gain in the LRRK2 null rats was observed and was accompanied by significant increases in insulin and insulin-like growth factors. Additionally, LRRK2-deficient rats displayed kidney morphological and histopathological alterations in the renal tubule epithelial cells of all animals assessed. These perturbations in renal morphology were accompanied by significant decreases of lipocalin-2, in both the urine and plasma of knockout animals. Significant alterations in the cellular composition of the spleen between LRRK2 knockout and wild type animals were identified by immunophenotyping and were associated with subtle differences in response to dual infection with rat-adapted influenza virus (RAIV) and Streptococcus pneumoniae. Ontological pathway analysis of LRRK2 across metabolic and kidney processes and pathological categories suggested that the thioredoxin network may play a role in perturbing these organ systems. The phenotype of the LRRK2 null rat is suggestive of a complex biology influencing metabolism, immune function and kidney homeostasis. These data need to be extended to better understand the role of the kinase domain or other biological functions of the gene to better inform the development of pharmacological inhibitors.
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Affiliation(s)
- Daniel Ness
- Nonclinical Safety Evaluation, Elan Pharmaceuticals Inc., South San Francisco, California, United States of America
| | - Zhao Ren
- Assay Development, Elan Pharmaceuticals Inc., South San Francisco, California, United States of America
| | - Shyra Gardai
- Exploratory Biology, Elan Pharmaceuticals Inc., South San Francisco, California, United States of America
| | | | - Victor J. Johnson
- Burleson Research Technologies Inc. (BRT), Morrisville, North Carolina, United States of America
| | | | - Elizabeth F. Brigham
- Pharmacology, Elan Pharmaceuticals Inc., South San Francisco, California, United States of America
| | - Andrew J. Olaharski
- Nonclinical Safety Evaluation, Elan Pharmaceuticals Inc., South San Francisco, California, United States of America
- * E-mail:
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Uehara T, Kondo C, Morikawa Y, Hanafusa H, Ueda S, Minowa Y, Nakatsu N, Ono A, Maruyama T, Kato I, Yamate J, Yamada H, Ohno Y, Urushidani T. Toxicogenomic biomarkers for renal papillary injury in rats. Toxicology 2013; 303:1-8. [DOI: 10.1016/j.tox.2012.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2012] [Revised: 09/13/2012] [Accepted: 09/21/2012] [Indexed: 01/10/2023]
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Chu CY, Wang CC. Toxicity of melamine: the public health concern. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART C, ENVIRONMENTAL CARCINOGENESIS & ECOTOXICOLOGY REVIEWS 2013; 31:342-386. [PMID: 24171438 DOI: 10.1080/10590501.2013.844758] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Melamine contamination in food has resulted in sickness and deaths of human infants, pets, and farm animals in the past decade. The majority of the victims suffered from acute kidney injury, nephrolithiasis, and urolithiasis. Since then, animal studies have revealed the possible target organs of the melamine toxicity and the extent of the adverse effects of the contaminant. State-of-the-art analytical methods have been developed to achieve the "zero tolerance" aim for such economically motivated adulteration. These studies provide in-depth understanding of the melamine toxicity and promising analytical methods, which can help us safeguard our dairy food source.
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Affiliation(s)
- C Y Chu
- a Department of Obstetrics and Gynaecology , The Chinese University of Hong Kong , Shatin , New Territories , Hong Kong
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34
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Maguire DP, Turton JA, Scudamore CL, Swain AJ, McClure FJ, Smyth R, Pereira IB, Munday MR, York MJ. Correlation of histopathology, urinary biomarkers, and gene expression responses following hexachloro-1:3-butadiene-induced acute nephrotoxicity in male Hanover Wistar rats: a 28-day time course study. Toxicol Pathol 2012; 41:779-94. [PMID: 23136149 DOI: 10.1177/0192623312464306] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Hexachloro-1:3-butadiene (HCBD) causes segment-specific injury to the proximal renal tubule. A time course study of traditional and more recently proposed urinary biomarkers was performed in male Hanover Wistar rats receiving a single intraperitoneal (ip) injection of 45 mg/kg HCBD. Animals were killed on days 1, 2, 3, 4, 5, 6, 7, 10, 14, and 28 postdosing and the temporal response of renal biomarkers was characterized using kidney histopathology, urinary and serum biochemistry, and gene expression. Histopathologic evidence of tubular degeneration was seen from day 1 until day 3 postdosing and correlated with increased urinary levels of α-glutathione S-transferase (α-GST), albumin, glucose, and kidney injury molecule-1 (KIM-1), and increased gene expression of KIM-1, NAD(P)H dehydrogenase, quinone 1, and heme oxygenase (decycling) 1. Histopathologic evidence of tubular regeneration was seen from day 2 postdosing and correlated with raised levels of urinary KIM-1 and osteopontin and increased gene expression of KIM-1 and annexin A7. Traditional renal biomarkers generally demonstrated low sensitivity. It is concluded that in rat proximal tubular injury, measurement of a range of renal biomarkers, in conjunction with gene expression analysis, provides an understanding of the extent of degenerative changes induced in the kidney and the process of regeneration.
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Affiliation(s)
- David P Maguire
- Department of Pathology and Infectious Diseases, Royal Veterinary College, Hertfordshire, United Kingdom.
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35
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Rouse RL, Stewart SR, Thompson KL, Zhang J. Kidney Injury Biomarkers in Hypertensive, Diabetic, and Nephropathy Rat Models Treated with Contrast Media. Toxicol Pathol 2012; 41:662-80. [DOI: 10.1177/0192623312464122] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Contrast-induced nephropathy (CIN) refers to a decline in renal function following exposure to iodinated contrast media (CM). The present study was initiated to explore the role of known human risk factors (spontaneous hypertension, diabetes, protein-losing nephropathy) on CIN development in rodent models and to determine the effect of CM administration on kidney injury biomarkers in the face of preexisting kidney injury. Spontaneously hypertensive rats (hypertension), streptozotocin-treated Sprague Dawley rats (diabetes), and Dahl salt-sensitive rats (protein-losing nephropathy) were given single intravenous injections of the nonionic, low osmolar contrast medium, iohexol. Blood urea nitrogen (BUN), serum creatinine (sCr), and urinary biomarkers; albumin, lipocalin 2 (Lcn-2), osteopontin (Opn), kidney injury molecule 1 (Kim-1), renal papillary antigen 1 (Rpa-1), α-glutathione S-transferase (α-Gst), µ-glutathione S-transferase (µ-Gst), and beta-2 microglobulin (β2m) were measured in disease models and appropriate controls to determine the response of these biomarkers to CM administration. Each disease model produced elevated biomarkers of kidney injury without CM. Preexisting histopathology was exacerbated by CM but little or no significant increases in biomarkers were observed. When 1.5-fold or greater sCr increases from pre-CM were used to define true positives, receiver–operating characteristic curve analysis of biomarker performance showed sCr was the best predictor of CIN across disease models. β2m, Lcn-2, and BUN were the best predictors of histopathology defined kidney injury.
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Affiliation(s)
- Rodney L. Rouse
- Division of Drug Safety Research, Office of Testing and Research, Office of Pharmaceutical Science, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Sharron R. Stewart
- Division of Drug Safety Research, Office of Testing and Research, Office of Pharmaceutical Science, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
| | - Karol L. Thompson
- Division of Drug Safety Research, Office of Testing and Research, Office of Pharmaceutical Science, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, Silver Spring, Maryland, USA
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Performance of urinary and gene expression biomarkers in detecting the nephrotoxic effects of melamine and cyanuric acid following diverse scenarios of co-exposure. Food Chem Toxicol 2012; 51:106-13. [PMID: 23022069 DOI: 10.1016/j.fct.2012.09.022] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Revised: 08/28/2012] [Accepted: 09/17/2012] [Indexed: 11/20/2022]
Abstract
Although standard nephrotoxicity assessments primarily detect impaired renal function, KIM-1, clusterin, NGAL, osteopontin and TIMP-1 were recently identified biomarkers proposed to indicate earlier perturbations in renal integrity. The recent adulteration of infant and pet food with melamine (MEL) and structurally-related compounds revealed that co-ingestion of MEL and cyanuric acid (CYA) could form melamine-cyanurate crystals which obstruct renal tubules and induce acute renal failure. This study concurrently evaluated the ability of multiplexed urinary biomarker immunoassays and biomarker gene expression analysis to detect nephrotoxicity in F344 rats co-administered 60ppm each of MEL and CYA in feed or via gavage for 28days. The biomarkers were also evaluated for the ability to differentiate the effects of the compounds when co-administered using diverse dosing schedules (i.e., consecutive vs. staggered gavage) and dosing matrixes (i.e., feed vs. gavage). Our results illustrate the ability of both methods to detect and differentiate the severity of adverse effects in the staggered and consecutive gavage groups at much lower doses than previously observed in animals co-exposed to the compounds in feed. We also demonstrate that these urinary biomarkers outperform traditional diagnostic methods and represent a powerful, non-invasive indicator of chemical-induced nephrotoxicity prior to the onset of renal dysfunction.
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Discovery of an orally active small-molecule irreversible inhibitor of protein disulfide isomerase for ovarian cancer treatment. Proc Natl Acad Sci U S A 2012; 109:16348-53. [PMID: 22988091 DOI: 10.1073/pnas.1205226109] [Citation(s) in RCA: 168] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Protein disulfide isomerase (PDI), an endoplasmic reticulum chaperone protein, catalyzes disulfide bond breakage, formation, and rearrangement. The effect of PDI inhibition on ovarian cancer progression is not yet clear, and there is a need for potent, selective, and safe small-molecule inhibitors of PDI. Here, we report a class of propynoic acid carbamoyl methyl amides (PACMAs) that are active against a panel of human ovarian cancer cell lines. Using fluorescent derivatives, 2D gel electrophoresis, and MS, we established that PACMA 31, one of the most active analogs, acts as an irreversible small-molecule inhibitor of PDI, forming a covalent bond with the active site cysteines of PDI. We also showed that PDI activity is essential for the survival and proliferation of human ovarian cancer cells. In vivo, PACMA 31 showed tumor targeting ability and significantly suppressed ovarian tumor growth without causing toxicity to normal tissues. These irreversible small-molecule PDI inhibitors represent an important approach for the development of targeted anticancer agents for ovarian cancer therapy, and they can also serve as useful probes for investigating the biology of PDI-implicated pathways.
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Nephrotoxic effect of tetradifon in rats: A biochemical and histomorphometric study. ACTA ACUST UNITED AC 2012; 64:645-50. [DOI: 10.1016/j.etp.2010.12.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2010] [Revised: 11/09/2010] [Accepted: 12/09/2010] [Indexed: 01/18/2023]
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Minowa Y, Kondo C, Uehara T, Morikawa Y, Okuno Y, Nakatsu N, Ono A, Maruyama T, Kato I, Yamate J, Yamada H, Ohno Y, Urushidani T. Toxicogenomic multigene biomarker for predicting the future onset of proximal tubular injury in rats. Toxicology 2012; 297:47-56. [DOI: 10.1016/j.tox.2012.03.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 03/28/2012] [Accepted: 03/30/2012] [Indexed: 10/28/2022]
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Biomarkers for Monitoring Therapeutic Side Effects or Various Supratherapeutic Confounders after Kidney Transplantation. Transplant Proc 2012; 44:1265-9. [DOI: 10.1016/j.transproceed.2011.11.069] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2011] [Revised: 10/31/2011] [Accepted: 11/23/2011] [Indexed: 02/02/2023]
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41
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Fuchs TC, Frick K, Emde B, Czasch S, Landenberg FV, Hewitt P. Evaluation of Novel Acute Urinary Rat Kidney Toxicity Biomarker for Subacute Toxicity Studies in Preclinical Trials. Toxicol Pathol 2012; 40:1031-48. [DOI: 10.1177/0192623312444618] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
| | | | - Barbara Emde
- Merck KGaA, Merck Serono, Toxicology, Darmstadt, Germany
| | | | | | - Philip Hewitt
- Merck KGaA, Merck Serono, Toxicology, Darmstadt, Germany
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42
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Rouse R, Siwy J, Mullen W, Mischak H, Metzger J, Hanig J. Proteomic candidate biomarkers of drug-induced nephrotoxicity in the rat. PLoS One 2012; 7:e34606. [PMID: 22509332 PMCID: PMC3324487 DOI: 10.1371/journal.pone.0034606] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 03/05/2012] [Indexed: 01/14/2023] Open
Abstract
Improved biomarkers of acute nephrotoxicity are coveted by the drug development industry, regulatory agencies, and clinicians. In an effort to identify such biomarkers, urinary peptide profiles of rats treated with two different nephrotoxins were investigated. 493 marker candidates were defined that showed a significant response to cis-platin comparing a cis-platin treated cohort to controls. Next, urine samples from rats that received three consecutive daily doses of 150 or 300 mg/kg gentamicin were examined. 557 potential biomarkers were initially identified; 108 of these gentamicin-response markers showed a clear temporal response to treatment. 39 of the cisplatin-response markers also displayed a clear response to gentamicin. Of the combined 147 peptides, 101 were similarly regulated by gentamicin or cis-platin and 54 could be identified by tandem mass spectrometry. Most were collagen type I and type III fragments up-regulated in response to gentamicin treatment. Based on these peptides, classification models were generated and validated in a longitudinal study. In agreement with histopathology, the observed changes in classification scores were transient, initiated after the first dose, and generally persistent over a period of 10–20 days before returning to control levels. The data support the hypothesis that gentamicin-induced renal toxicity up-regulates protease activity, resulting in an increase in several specific urinary collagen fragments. Urinary proteomic biomarkers identified here, especially those common to both nephrotoxins, may serve as a valuable tool to investigate potential new drug candidates for the risk of nephrotoxicity.
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Affiliation(s)
- Rodney Rouse
- Division of Drug Safety Research, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland, United States of America.
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Ouedraogo M, Baudoux T, Stévigny C, Nortier J, Colet JM, Efferth T, Qu F, Zhou J, Chan K, Shaw D, Pelkonen O, Duez P. Review of current and "omics" methods for assessing the toxicity (genotoxicity, teratogenicity and nephrotoxicity) of herbal medicines and mushrooms. JOURNAL OF ETHNOPHARMACOLOGY 2012; 140:492-512. [PMID: 22386524 DOI: 10.1016/j.jep.2012.01.059] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 01/31/2012] [Accepted: 01/31/2012] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The increasing use of traditional herbal medicines around the world requires more scientific evidence for their putative harmlessness. To this end, a plethora of methods exist, more or less satisfying. In this post-genome era, recent reviews are however scarce, not only on the use of new "omics" methods (transcriptomics, proteomics, metabonomics) for genotoxicity, teratogenicity, and nephrotoxicity assessment, but also on conventional ones. METHODS The present work aims (i) to review conventional methods used to assess genotoxicity, teratogenicity and nephrotoxicity of medicinal plants and mushrooms; (ii) to report recent progress in the use of "omics" technologies in this field; (iii) to underline advantages and limitations of promising methods; and lastly (iv) to suggest ways whereby the genotoxicity, teratogenicity, and nephrotoxicity assessment of traditional herbal medicines could be more predictive. RESULTS Literature and safety reports show that structural alerts, in silico and classical in vitro and in vivo predictive methods are often used. The current trend to develop "omics" technologies to assess genotoxicity, teratogenicity and nephrotoxicity is promising but most often relies on methods that are still not standardized and validated. CONCLUSION Hence, it is critical that toxicologists in industry, regulatory agencies and academic institutions develop a consensus, based on rigorous methods, about the reliability and interpretation of endpoints. It will also be important to regulate the integration of conventional methods for toxicity assessments with new "omics" technologies.
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Affiliation(s)
- Moustapha Ouedraogo
- Laboratory of Pharmacology and Toxicology, Health Sciences Faculty, University of Ouagadougou, 03 BP 7021 Ouagadougou 03, Burkina Faso. mustapha
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44
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Fuchs TC, Hewitt P. Preclinical perspective of urinary biomarkers for the detection of nephrotoxicity: what we know and what we need to know. Biomark Med 2012; 5:763-79. [PMID: 22103611 DOI: 10.2217/bmm.11.86] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The assessment of kidney damage is a challenge and must incorporate assessment of the functional capacity of the kidney, as well as a comprehensive understanding of the kidney's role. Multiple parameters have been used for many years to measure renal functionality to assess renal damage. It is astonishing that, beside histopathology, the most common traditional parameters are serum based. However, urine is also used to obtain additional information regarding the health status of the kidneys. Since 2008, several novel urinary protein biomarkers have been qualified by the US FDA and the European Medicines Agency in conjunction with the Predictive Safety Testing Consortium in a specially developed qualification process. Subsequently, the Pharmaceuticals and Medical Devices Agency accepted the qualification of these seven urinary biomarkers. This review will give an overview of the state-of-the-art detection based on urinary biomarkers, which will enhance toxicological research in the future. In addition, the qualification process that leads to acceptance of these biomarkers will be described because of its uniqueness and importance for the field of biomarker research.
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Rusyn I, Sedykh A, Low Y, Guyton KZ, Tropsha A. Predictive modeling of chemical hazard by integrating numerical descriptors of chemical structures and short-term toxicity assay data. Toxicol Sci 2012; 127:1-9. [PMID: 22387746 DOI: 10.1093/toxsci/kfs095] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Quantitative structure-activity relationship (QSAR) models are widely used for in silico prediction of in vivo toxicity of drug candidates or environmental chemicals, adding value to candidate selection in drug development or in a search for less hazardous and more sustainable alternatives for chemicals in commerce. The development of traditional QSAR models is enabled by numerical descriptors representing the inherent chemical properties that can be easily defined for any number of molecules; however, traditional QSAR models often have limited predictive power due to the lack of data and complexity of in vivo endpoints. Although it has been indeed difficult to obtain experimentally derived toxicity data on a large number of chemicals in the past, the results of quantitative in vitro screening of thousands of environmental chemicals in hundreds of experimental systems are now available and continue to accumulate. In addition, publicly accessible toxicogenomics data collected on hundreds of chemicals provide another dimension of molecular information that is potentially useful for predictive toxicity modeling. These new characteristics of molecular bioactivity arising from short-term biological assays, i.e., in vitro screening and/or in vivo toxicogenomics data can now be exploited in combination with chemical structural information to generate hybrid QSAR-like quantitative models to predict human toxicity and carcinogenicity. Using several case studies, we illustrate the benefits of a hybrid modeling approach, namely improvements in the accuracy of models, enhanced interpretation of the most predictive features, and expanded applicability domain for wider chemical space coverage.
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Affiliation(s)
- Ivan Rusyn
- Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill, North Carolina 27599, USA.
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Kondo C, Aoki M, Yamamoto E, Tonomura Y, Ikeda M, Kaneto M, Yamate J, Torii M, Uehara T. Predictive genomic biomarkers for drug-induced nephrotoxicity in mice. J Toxicol Sci 2012; 37:723-37. [DOI: 10.2131/jts.37.723] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- Chiaki Kondo
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd
| | - Miwa Aoki
- Drug Discovery Research Laboratories, Shionogi & Co., Ltd
| | - Emi Yamamoto
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd
- Department of Veterinary Pathology, Graduate School of Agriculture and Biological Science, Osaka Prefecture University
| | - Yutaka Tonomura
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd
| | - Minoru Ikeda
- Department of Veterinary Pathology, Graduate School of Agriculture and Biological Science, Osaka Prefecture University
| | - Masako Kaneto
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd
| | - Jyoji Yamate
- Department of Veterinary Pathology, Graduate School of Agriculture and Biological Science, Osaka Prefecture University
| | - Mikinori Torii
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd
| | - Takeki Uehara
- Drug Developmental Research Laboratories, Shionogi & Co., Ltd
- Department of Veterinary Pathology, Graduate School of Agriculture and Biological Science, Osaka Prefecture University
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Zhang M, Chen M, Tong W. Is Toxicogenomics a More Reliable and Sensitive Biomarker than Conventional Indicators from Rats To Predict Drug-Induced Liver Injury in Humans? Chem Res Toxicol 2011; 25:122-9. [DOI: 10.1021/tx200320e] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Min Zhang
- Center of
Excellence for Bioinformatics, Division of
Systems Biology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Road,
Jefferson, Arkansas 72079, United States
| | - Minjun Chen
- Center of
Excellence for Bioinformatics, Division of
Systems Biology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Road,
Jefferson, Arkansas 72079, United States
| | - Weida Tong
- Center of
Excellence for Bioinformatics, Division of
Systems Biology, National Center for Toxicological Research, U.S. Food and Drug Administration, 3900 NCTR Road,
Jefferson, Arkansas 72079, United States
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Characterization of the estradiol-binding site structure of human protein disulfide isomerase (PDI). PLoS One 2011; 6:e27185. [PMID: 22073283 PMCID: PMC3207843 DOI: 10.1371/journal.pone.0027185] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2011] [Accepted: 10/12/2011] [Indexed: 11/29/2022] Open
Abstract
Background Earlier studies showed that 17β-estradiol (E2), an endogenous female sex hormone, can bind to human protein disulfide isomerase (PDI), a protein folding catalyst for disulfide bond formation and rearrangement. This binding interaction can modulate the intracellular levels of E2 and its biological actions. However, the structure of PDI's E2-binding site is still unclear at present, which is the focus of this study. Methodology/Principal Findings The E2-binding site structure of human PDI was studied by using various biochemical approaches coupled with radiometric receptor-binding assays, site-directed mutagenesis, and molecular computational modeling. Analysis of various PDI protein fragments showed that the [3H]E2-binding activity is not associated with the single b or b' domain but is associated with the b-b' domain combination. Computational docking analyses predicted that the E2-binding site is located in a hydrophobic pocket composed mainly of the b' domain and partially of the b domain. A hydrogen bond, formed between the 3-hydroxyl group of E2 and His256 of PDI is critical for the binding interaction. This binding model was jointly confirmed by a series of detailed experiments, including site-directed mutagenesis of the His256 residue coupled with selective modifications of the ligand structures to alter the binding interaction. Conclusions/Significance The results of this study elucidated the structural basis for the PDI–E2 binding interaction and the reservoir role of PDI in modulating the intracellular E2 levels. The identified PDI E2-binding site is quite different from its known peptide binding sites. Given that PDI is a potential therapeutic target for cancer chemotherapy and HIV prevention and that E2 can inhibit PDI activity in vitro, the E2-binding site structure of human PDI determined here offers structural insights which may aid in the rational design of novel PDI inhibitors.
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Li Q, Peng X, Yang H, Wang H, Shu Y. Deficiency of multidrug and toxin extrusion 1 enhances renal accumulation of paraquat and deteriorates kidney injury in mice. Mol Pharm 2011; 8:2476-83. [PMID: 21991918 PMCID: PMC3230245 DOI: 10.1021/mp200395f] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
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Multidrug and toxin extrusion 1 (MATE1/solute carrier 47A1) mediates cellular transport of a variety of structurally diverse compounds. Paraquat (PQ), which has been characterized in vitro as a MATE1 substrate, is a widely used herbicide and can cause severe toxicity to humans after exposure. However, the contribution of MATE1 to PQ disposition in vivo has not been determined. In the present study, we generated Mate1-deficient (Mate1–/–) mice and performed toxicokinetic analyses of PQ in Mate1–/– and wild-type (Mate1+/+) mice. After a single intravenous administration of PQ (50 mg/kg), Mate1–/– mice exhibited significantly higher plasma PQ concentrations than Mate1+/+ mice. The renal PQ concentration was markedly increased in Mate1–/– mice compared with Mate1+/+ mice. The subsequent nephrotoxicity of PQ were examined in these mice. Three days after intraperitoneal administration of PQ (20 mg/kg), the transcript levels of N-acetyl-β-d-glucosaminidase (Lcn2) and kidney injury molecule-1 (Kim-1) in the kidney were remarkably enhanced in the Mate1–/– mice. This was accompanied by apparent difference in renal histology between Mate1–/– and Mate1+/+ mice. In conclusion, we demonstrated that Mate1 is responsible for renal elimination of PQ in vivo and the deficiency of Mate1 function confers deteriorated kidney injury caused by PQ in mice.
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Affiliation(s)
- Qing Li
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland Baltimore, Baltimore, Maryland, United States
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Fuchs TC, Hewitt P. Biomarkers for drug-induced renal damage and nephrotoxicity-an overview for applied toxicology. AAPS JOURNAL 2011; 13:615-31. [PMID: 21969220 DOI: 10.1208/s12248-011-9301-x] [Citation(s) in RCA: 127] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2011] [Accepted: 09/12/2011] [Indexed: 01/08/2023]
Abstract
The detection of acute kidney injury (AKI) and the monitoring of chronic kidney disease (CKD) is becoming more important in industrialized countries. Because of the direct relation of kidney damage to the increasing age of the population, as well as the connection to other diseases like diabetes mellitus and congestive heart failure, renal diseases/failure has increased in the last decades. In addition, drug-induced kidney injury, especially of patients in intensive care units, is very often a cause of AKI. The need for diagnostic tools to identify drug-induced nephrotoxicity has been emphasized by the ICH-regulated agencies. This has lead to multiple national and international projects focusing on the identification of novel biomarkers to enhance drug development. Several parameters related to AKI or CKD are known and have been used for several decades. Most of these markers deliver information only when renal damage is well established, as is the case for serum creatinine. The field of molecular toxicology has spawned new options of the detection of nephrotoxicity. These new developments lead to the identification of urinary protein biomarkers, including Kim-1, clusterin, osteopontin or RPA-1, and other transcriptional biomarkers which enable the earlier detection of AKI and deliver further information about the area of nephron damage or the underlying mechanism. These biomarkers were mainly identified and qualified in rat but also for humans, several biomarkers have been described and now have to be validated. This review will give an overview of traditional and novel tools for the detection of renal damage.
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