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Campbell KC, Rehemtulla A, Sunkara P, Hamstra D, Buhnerkempe M, Ross B. Oral D-methionine protects against cisplatin-induced hearing loss in humans: phase 2 randomized clinical trial in India. Int J Audiol 2021; 61:621-631. [PMID: 34622731 DOI: 10.1080/14992027.2021.1983215] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Objective: This exploratory Phase 2 clinical trial is the first determining safety and efficacy of oral D-methionine (D-met) in reducing cisplatin-induced ototoxicity.Design: Randomised parallel double-blind placebo-controlled exploratory Phase 2 study.Study samples: Fifty adult cancer patients received oral D-met or placebo before each cisplatin dose. Physical examination, blood collection and audiometry occurred at baseline and subsequent visits plus post-treatment audiometry. After attrition, final analysis included 27 patients.Results: Significant treatment group by ear and time (baseline vs. post-treatment) interactions occurred at 10 kHz and 11.2 kHz. Placebo and D-met groups differed in threshold shift for left ear at 11.2 kHz (mean difference = 22.97 dB [9.59, 36.35]). Averaging across ears, placebo group showed significant threshold shifts from baseline to post-treatment at 10 kHz (mean shift= -13.65 dB [-21.32,-5.98]), 11.2 kHz (-16.15 dB [-25.19,-7.12]), and 12.5 kHz (-11.46 dB [-19.18,-3.74]) but not 8 kHz (-8.65 dB [-17.86, 0.55]). The D-met group showed no significant threshold shifts (8 kHz: -1.25 dB [-7.75, 5.25]; 10 kHz:-3.93 dB [-8.89, 1.03]; 11.2 kHz:-4.82 dB [-11.21, 1.57]; 12.5 kHz:-3.68 dB [-11.57, 4.21]). Side effects did not significantly differ between groups.Conclusion: Oral D-met reduces cisplatin-induced ototoxicity in humans.
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Affiliation(s)
- Kathleen C Campbell
- Department of Medical Microbiology, Immunology, and Cell Biology, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - Alnawez Rehemtulla
- Molecular Therapeutics, Molecular Cancer Therapeutics, Ann Arbor, MI, USA
| | | | - Daniel Hamstra
- Department of Radiation Oncology, William Beaumont Oakland University Medical School, Dearborn, MI, USA
| | - Michael Buhnerkempe
- Department of Internal Medicine, Southern Illinois University School of Medicine, Springfield, IL, USA
| | - Brian Ross
- Department of Radiology, University of Michigan, Ann Arbor, MI, USA
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2
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Agha KA, Ibrahim TS, Elsherbiny NM, El-Sherbiny M, Abdel-Aal EH, Abdel-Samii ZK, Abo-Dya NE. Design, synthesis and pharmacological screening of novel renoprotective methionine-based peptidomimetics: Amelioration of cisplatin-induced nephrotoxicity. Bioorg Chem 2021; 114:105100. [PMID: 34246972 DOI: 10.1016/j.bioorg.2021.105100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/13/2021] [Accepted: 06/14/2021] [Indexed: 11/28/2022]
Abstract
Cisplatin (CP) is an effective chemotherapeutic agent for treatment of various types of cancer, however efforts are needed to reduce its toxic side effect. Previous studies revealed promising effect of peptides in decreasing CP induced nephrotoxicity. Herein, novel Met-based peptidomimetics were synthesized using N-acylbenzotriazole as acylating agent in high yield. Evaluation of renoprotective effect of the synthesized targets on CP treated kidney cell line (LLC-PK1) revealed that pretreatment with 1/3 IC50 of targets II, IIIa-g attenuated CP induced cell death where the IC50 of CP was raised from 3.28 µM to 9.25-41.1 µM. The most potent compounds IIIg, II and IIIb exhibited antioxidative stress in CP-treated LLC-PK1 cells as confirmed by raising GSH/GSSG ratio and SOD concentration as well as decreasing ROS and MDA. Additionally, in vivo experiments using Sprague Dawley rats showed renoprotective effect of IIIg against CP-induced nephrotoxicity as evidenced by improved results of renal function tests and attenuated CP-induced renal structural injury. Moreover, antioxidant activity of IIIg was demonstrated via its ability to reduce renal MDA level and up-regulate renal antioxidant element GSH level. Further, immunohistochemistry of renal specimens showed the ability of IIIg to restore CP-induced suppression of Nrf2. Interestingly, in vivo and in vitro studies demonstrated that IIIg had no effect on CP antiproliferative activity. An assessment of the ADMET properties revealed that targets IIIg, II and IIIb showed good drug-likeness in terms of their physicochemical, pharmacokinetic properties. The findings presented here showcase that IIIg is a promising renoprotective candidate with antioxidative stress potential.
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Affiliation(s)
- Khalid A Agha
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Fayoum University, Fayoum 63514, Egypt; Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt.
| | - Tarek S Ibrahim
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Nehal M Elsherbiny
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tabuk University, Tabuk 71491, Saudi Arabia; Department of Biochemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Mohamed El-Sherbiny
- Department of Anatomy, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt; College of Medicine, Almaarefa University, Riyadh 11597, Saudi Arabia
| | - Eatedal H Abdel-Aal
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Zakaria K Abdel-Samii
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt
| | - Nader E Abo-Dya
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Zagazig University, Zagazig 44519, Egypt; Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Tabuk University, Tabuk 71491, Saudi Arabia
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3
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Wong YS, Lin MY, Liu PF, Ko JL, Huang GT, Tu DG, Ou CC. D-methionine improves cisplatin-induced anorexia and dyspepsia syndrome by attenuating intestinal tryptophan hydroxylase 1 activity and increasing plasma leptin concentration. Neurogastroenterol Motil 2020; 32:e13803. [PMID: 31989744 DOI: 10.1111/nmo.13803] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 11/29/2019] [Accepted: 12/23/2019] [Indexed: 02/08/2023]
Abstract
BACKGROUND Cisplatin is a widely used antineoplastic drug. However, cisplatin-induced dyspepsia syndromes, including delayed gastric emptying, gastric distension, early satiety, nausea, and vomiting, often force patients to take doses lower than those prescribed or even refuse treatment. D-methionine has an appetite-enhancing effect and alleviates weight loss during cisplatin treatment. METHODS This work established a model of anorexia and dyspepsia symptoms with intraperitoneal injection of cisplatin (5 mg/kg) once a week for three cycles. Presupplementation with or without D-methionine (300 mg/kg) was performed. Orexigenic and anorexigenic hormones (ghrelin, leptin, and glucagon-like peptide-1), tryptophan hydroxylase 1 (TPH1), 5-hydroxytryptamine receptors (5-HT2C and 5-HT3 ), and hypothalamic feeding-related peptides were measured by immunohistochemistry staining, enzyme-linked immunosorbent assay, and real-time PCR assay. KEY RESULTS Cisplatin administration caused marked decrease in appetite and body weight, promoted adipose and fat tissue atrophy, and delayed gastric emptying and gastric distension, and D-methionine preadministration prior to cisplatin administration significantly ameliorated these side effects. Besides, cisplatin induced an evident increase in serum ghrelin level, TPH1 activity, and 5-HT3 receptor expression in the intestine and decreased plasma leptin levels and gastric ghrelin mRNA gene expression levels. D-methionine supplementation recovered these changes. The expression of orexigenic neuropeptide Y/agouti-related peptide and anorexigenic cocaine- and amphetamine-regulated transcript proopiomelanocortin neurons were altered by D-methionine supplementation in cisplatin-induced anorexia rats. CONCLUSIONS AND INFERENCES D-methionine supplementation prevents cisplatin-induced anorexia and dyspepsia syndrome possibly by attenuating intestinal tryptophan hydroxylase 1 activity and increasing plasma leptin concentration. Therefore, D-methionine can be used as an adjuvant therapy for treating cisplatin-induced adverse effects.
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Affiliation(s)
- Yi-Sin Wong
- Department of Family Medicine, Ditmanson Medical Foundation, Chia-Yi Christian Hospital, Chiayi City, Taiwan.,Department of Food Science and Technology, Chia Nan University of Pharmacy and Science, Tainan, Taiwan
| | - Meei-Yn Lin
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Pei-Fen Liu
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Jiunn-Liang Ko
- Department of Medical Oncology and Chest Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan.,Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan ROC
| | - Guan-Ting Huang
- Department of Nutrition, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Dom-Gene Tu
- Department of Nuclear Medicine, Ditmanson Medical Foundation, Chia-Yi Christian Hospital, Chiayi City, Taiwan.,Department of Biomedical Sciences, National Chung Cheng University, Minhsiung Chiayi, Taiwan
| | - Chu-Chyn Ou
- Department of Nutrition, Chung Shan Medical University Hospital, Taichung, Taiwan.,School of Nutrition, Chung Shan Medical University, Taichung, Taiwan
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4
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Lin MT, Ko JL, Liu TC, Chao PT, Ou CC. Protective Effect of D-Methionine on Body Weight Loss, Anorexia, and Nephrotoxicity in Cisplatin-Induced Chronic Toxicity in Rats. Integr Cancer Ther 2018; 17:813-824. [PMID: 29430988 PMCID: PMC6142074 DOI: 10.1177/1534735417753543] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
D-methionine is a sulfur-containing amino acid that can act as a potent antioxidant. Anorexia and nephrotoxicity are side effects of cisplatin. The protective effects of D-methionine on cisplatin-induced anorexia and renal injury were investigated. The model of chronic cisplatin administration (5 mg/kg body weight) involved intraperitoneal injection on days 1, 8, and 15 and oral D-methionine (300 mg/kg body weight) coadministration daily for 20 days. On the 21st day of treatment, food intake and body weight in the cisplatin-treated group significantly decreased by 52% and 31%, respectively, when compared with a control group. D-methionine coadministration with cisplatin decreased food intake and body weight by 29% and 8%, respectively. In cisplatin-treated rats, white blood cell, mean corpuscular volume, and platelet values significantly decreased, while mean corpuscular hemoglobin concentration significantly increased by 8.6% when compared with control rats. Cisplatin administration resulted in significantly decreased feeding efficiency, elevated renal oxidative stress, and reduced antioxidative activity. Leukocyte infiltration, tubule vacuolization, tubular expansion, and swelling were observed in the kidneys of cisplatin-treated rats. Oral D-methionine exhibited an antianorexic effect, with improvement in food intake, feeding efficiency, and hematological toxicities, as well as a protective effect against nephrotoxicity by elevated antioxidative activity. D-methionine may serve as a chemoprotectant in patients receiving cisplatin as part of a chemotherapy regimen.
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Affiliation(s)
- Ming-Tai Lin
- 1 Changhua Christian Hospital, Changhua City, Taiwan
| | | | - Te-Chung Liu
- 2 Chung Shan Medical University, Taichung, Taiwan
| | | | - Chu-Chyn Ou
- 2 Chung Shan Medical University, Taichung, Taiwan.,3 Chung Shan Medical University Hospital, Taichung, Taiwan
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5
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Hazlitt RA, Min J, Zuo J. Progress in the Development of Preventative Drugs for Cisplatin-Induced Hearing Loss. J Med Chem 2018; 61:5512-5524. [PMID: 29361217 PMCID: PMC6043375 DOI: 10.1021/acs.jmedchem.7b01653] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
Cisplatin
is a highly effective treatment for malignant cancers
and has become a cornerstone in chemotherapeutic regimens. Unfortunately,
its use in the clinic is often coupled with a high incidence of severe
hearing loss. Over the past few decades, enormous effort has been
put forth to find protective agents that selectively protect against
the ototoxic side effects of cisplatin and do not interfere with its
antitumoral activity. Many therapies have been successful in preclinical
work, but only a few have shown any protection in the clinic, and
none have been approved by the FDA. This review summarizes the clinical
and preclinical studies of the most effective small-molecule candidates
currently in clinical trials, while also detailing their molecular
mechanisms of action, to gain insight for future drug development
in the field.
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Methionine Ameliorates Polymyxin-Induced Nephrotoxicity by Attenuating Cellular Oxidative Stress. Antimicrob Agents Chemother 2017; 62:AAC.01254-17. [PMID: 29061752 DOI: 10.1128/aac.01254-17] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/13/2017] [Indexed: 11/20/2022] Open
Abstract
Polymyxins are a last line of defense against multidrug-resistant Gram-negative pathogens. Recent pharmacological data show that intravenous polymyxins can cause nephrotoxicity in up to 60% of patients, and the plasma concentrations of polymyxins achieved with the currently recommended dosage regimens are suboptimal in a large proportion of patients. Simply increasing the daily dose of polymyxins is not possible due to nephrotoxicity. This study aimed to examine the protective effect of methionine against polymyxin-induced nephrotoxicity. Methionine (400 mg/kg of body weight), polymyxin B (35 mg/kg), a combination of methionine (100 or 400 mg/kg) and polymyxin B, and saline were administered to mice twice daily over 3.5 days. Kidneys were collected immediately at the end of the experiment for histological examination. The effect of methionine on the pharmacokinetics of polymyxin B was investigated in rats. The attenuation of polymyxin B (0.75 mM)-induced mitochondrial superoxide production by methionine (10.0 mM) was examined in rat kidney (NRK-52E) cells. Histological results revealed that the polymyxin-induced nephrotoxicity in mice was ameliorated by methionine in a dose-dependent manner. The methionine doses were well tolerated in the mice and rats, and the pharmacokinetics of polymyxin B in rats were not affected by methionine. In the group receiving polymyxin B-methionine, the total body clearance of polymyxin B was very similar to that in the group receiving polymyxin B alone (3.71 ± 0.57 versus 3.12 ± 1.66 ml/min/kg, P > 0.05). A substantial attenuation of polymyxin-induced mitochondrial superoxide production in NRK-52E cells was observed following pretreatment with methionine. Our results demonstrate that coadministration of methionine significantly ameliorated polymyxin-induced nephrotoxicity and decreased mitochondrial superoxide production in renal tubular cells.
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Scasso F, Sprio AE, Canobbio L, Scanarotti C, Manini G, Berta GN, Bassi AM. Dietary supplementation of coenzyme Q10 plus multivitamins to hamper the ROS mediated cisplatin ototoxicity in humans: A pilot study. Heliyon 2017; 3:e00251. [PMID: 28239674 PMCID: PMC5318271 DOI: 10.1016/j.heliyon.2017.e00251] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 01/18/2017] [Accepted: 02/08/2017] [Indexed: 11/26/2022] Open
Abstract
Oxidative stress exerts major role in the pathogenesis of side effects of many antineoplastic drugs, including ototoxicity of cisplatin. In particular, increased levels of reactive oxygen species (ROS) represent one of the molecular mechanisms underlying the apoptosis of different types of hearing cells. Antioxidants and ROS scavengers may thus represent potential therapeutic options to prevent platinum-associated ototoxicity. The aim of this preliminary case-control study was to explore the efficacy of a dietary antioxidant supplement, in order to hamper the occurrences of ototoxicity in patients undergoing cisplatin chemotherapy. As results, a significant protection against cochlear toxic damage was demonstrated in patients who took the antioxidant supplement, which furthermore prevented the occurrence of hearing disorders and tinnitus. These clinical evidences were corroborated by the oxidative status of patients. After cisplatin chemotherapy, the plasma derivatives of reactive oxygen metabolites (d-ROMs) content rapidly increased in control patients, but it was maintained in those under dietary supplementation, likely because of a higher anti-ROMs potential. Indeed, an increment in rapid anti-ROMs was detected in supplemented patients, though no differences were highlighted in terms of slow anti-ROMs. In conclusion, in this preliminary report we demonstrated the feasibility of a dietary antioxidant supplementation in order to prevent the cisplatin induced hearing damage.
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Affiliation(s)
- Felice Scasso
- Department of Otorhinolaryngology, P.A. Micone Hospital, ASL n. 3 Genovese, Genoa - Sestri Ponente, Italy
| | - Andrea Elio Sprio
- Department of Clinical and Biological Sciences, Pharmacological Unit, University of Turin, c/o Ospedale San Luigi Gonzaga, Orbassano (TO), Italy
| | - Luciano Canobbio
- Medical Oncology Department, P.A. Micone Hospital, ASL n. 3 Genovese, Genoa - Sestri Ponente, Italy
| | - Chiara Scanarotti
- Department of Experimental Medicine (DIMES) - General Pathology Sect. University of Genoa, Genoa, Italy
| | | | - Giovanni Nicolao Berta
- Department of Clinical and Biological Sciences, Pharmacological Unit, University of Turin, c/o Ospedale San Luigi Gonzaga, Orbassano (TO), Italy
| | - Anna Maria Bassi
- Department of Experimental Medicine (DIMES) - General Pathology Sect. University of Genoa, Genoa, Italy
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Callejo A, Sedó-Cabezón L, Juan ID, Llorens J. Cisplatin-Induced Ototoxicity: Effects, Mechanisms and Protection Strategies. TOXICS 2015; 3:268-293. [PMID: 29051464 PMCID: PMC5606684 DOI: 10.3390/toxics3030268] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 07/08/2015] [Accepted: 07/09/2015] [Indexed: 12/11/2022]
Abstract
Cisplatin is a highly effective chemotherapeutic agent that is widely used to treat solid organ malignancies. However, serious side effects have been associated with its use, such as bilateral, progressive, irreversible, dose-dependent neurosensory hearing loss. Current evidence indicates that cisplatin triggers the production of reactive oxygen species in target tissues in the inner ear. A variety of agents that protect against cisplatin-induced ototoxicity have been successfully tested in cell culture and animal models. However, many of them interfere with the therapeutic effect of cisplatin, and therefore are not suitable for systemic administration in clinical practice. Consequently, local administration strategies, namely intratympanic administration, have been developed to achieve otoprotection, without reducing the antitumoral effect of cisplatin. While a considerable amount of pre-clinical information is available, clinical data on treatments to prevent cisplatin ototoxicity are only just beginning to appear. This review summarizes clinical and experimental studies of cisplatin ototoxicity, and focuses on understanding its toxicity mechanisms, clinical repercussions and prevention strategies.
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Affiliation(s)
- Angela Callejo
- Unitat Funcional d'Otorrinolaringologia i Al·lèrgia, Institut Universtiari Quirón Dexeus, 08028 Barcelona, Catalonia, Spain.
| | - Lara Sedó-Cabezón
- Departament de Ciències Fisiològiques II, Universitat de Barcelona, 08907 L'Hospitalet de Llobregat, Catalonia, Spain.
| | - Ivan Domènech Juan
- Unitat Funcional d'Otorrinolaringologia i Al·lèrgia, Institut Universtiari Quirón Dexeus, 08028 Barcelona, Catalonia, Spain.
- Servei d'Otorrinolaringologia, Hospital Universitario de Bellvitge, 08907 L'Hospitalet de Llobregat, Catalonia, Spain.
| | - Jordi Llorens
- Departament de Ciències Fisiològiques II, Universitat de Barcelona, 08907 L'Hospitalet de Llobregat, Catalonia, Spain.
- Institut d'Investigació Biomèdica de Bellvitge (IDIBELL), 08907 L'Hospitalet de Llobregat, Catalonia, Spain.
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9
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Sooriyaarachchi M, White WM, Narendran A, Gailer J. Chemoprotection byd-methionine against cisplatin-induced side-effects: insight from in vitro studies using human plasma. Metallomics 2014; 6:532-41. [DOI: 10.1039/c3mt00238a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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10
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Yadav YC, Srivastava DN. Nephroprotective and curative effects of Ficus religiosa latex extract against cisplatin-induced acute renal failure. PHARMACEUTICAL BIOLOGY 2013; 51:1480-1485. [PMID: 23870082 DOI: 10.3109/13880209.2013.793718] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
CONTEXT Ficus religiosa L. (Moraceae) is widely planted in the tropics. Its chemical constituents include tannin, saponin gluanol acetate, β-sitosterol, leucoanthocyanidin and leucoanthocyanin which are used for the treatment of pain, inflammation, impotence, menstrual disturbances, uterine tonic and urine related problems. OBJECTIVE To determine the possible nephroprotective and curative effects of F. religiosa latex methanol extract against cisplatin induced acute renal failure. MATERIALS AND METHODS Methanol extract was obtained by maceration process. Rats were divided in five groups. Group 1 was administered acacia (2% w/v) of 5 ml/kg throughout the experiment; group 2 was treated with single dose of cisplatin (5 mg/kg i.p.) on the 1st day; group 3 (200 mg/kg p.o.) of extract control for the 1st to 10th day, group 4 (200 mg/kg p.o.) of extract from the 1st to 10th day and a single dose of cisplatin (5 mg/kg, i.p.) on 11th day while group 5 received the same dose of cisplatin on day 1 and extract (200 mg/kg p.o.) from the 7th to 16th day. RESULTS Phytochemical screening of the extract revealed the presence of glycoside, alkaloids, tannins (phenolic compounds), flavonoids and amino acids. The half maximal inhibitory concentration (IC50) values of the extract were 31.75 ± 0.12 and 18.35 ± 0.48 µg/ml, respectively. The cisplatin-treated group 2 showed significant changes; renal functions, biochemical parameters and histopathology were significantly (**p < 0.01) recovered by 200 mg/kg curative and protective groups. DISCUSSION AND CONCLUSION These findings demonstrated that F. religiosa latex and constituents have excellent nephroprotective and curative activities and thus have great potential as a source for natural health products.
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Affiliation(s)
- Yogesh Chand Yadav
- Department of Pharmacy , Sumandeep Vidyapeeth, Pipariya Vadodara, Gujarat , India and
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11
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Gopal KV, Wu C, Shrestha B, Campbell KCM, Moore EJ, Gross GW. d-Methionine protects against cisplatin-induced neurotoxicity in cortical networks. Neurotoxicol Teratol 2012; 34:495-504. [PMID: 22732230 DOI: 10.1016/j.ntt.2012.06.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Revised: 06/10/2012] [Accepted: 06/11/2012] [Indexed: 10/28/2022]
Abstract
Cisplatin is a platinum-based chemotherapeutic agent widely used for the treatment of various types of cancer. Patients undergoing cisplatin treatment often suffer from a condition known as "chemobrain", ototoxicity, peripheral neuropathy, weight loss, nausea, vomiting, nephrotoxicity, seizures, hearing loss and tinnitus. d-Methionine (d-Met), a sulfur-containing nucleophilic antioxidant, has been shown to prevent cisplatin-induced side effects in animals without antitumor interference. In this study, we have used an in vitro model of cortical networks (CNs), enriched in auditory cortex cells; to quantify cisplatin neurotoxicity and the protective effects of d-Met. Dissociated neurons from auditory cortices of mouse embryos were grown on microelectrode arrays with 64 transparent indium-tin oxide electrodes, which enabled continuous optical and electrophysiological monitoring of network neurons. Cisplatin at 0.10-0.25 mM induced up to a 200% increase in spontaneous spiking activity, while concentrations at or above 0.5mM caused irreversible loss of neuronal activity, accompanied by cell death. Pretreatment with d-Met, at a concentration of 1.0mM, prevented the cisplatin-induced excitation at 0.10-0.25 mM, caused sustained excitation without occurrence of cell death at 0.5mM, and delayed cell death at 0.75 mM cisplatin. l-Methionine, the optical isomer, showed lower potency and less efficacy than d-Met, was less protective against 0.1mM cisplatin, and proved ineffective at a concentration of 0.5mM cisplatin. Pre-exposure time of d-Met was associated with the protective effects at 0.1 and 0.5mM cisplatin, with longer pre-exposure times exhibiting better protection. This study quantifies as a function of concentration and time that d-Met protects central nervous system tissue from acute cisplatin toxicity.
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Affiliation(s)
- Kamakshi V Gopal
- University of North Texas, Department of Speech & Hearing Sciences, United States.
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12
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Lorito G, Hatzopoulos S, Laurell G, Campbell KC, Petruccelli J, Giordano P, Kochanek K, Sliwa L, Martini A, Skarzynski H. Dose-dependent protection on cisplatin-induced ototoxicity - an electrophysiological study on the effect of three antioxidants in the Sprague-Dawley rat animal model. Med Sci Monit 2011; 17:BR179-186. [PMID: 21804453 PMCID: PMC3539615 DOI: 10.12659/msm.881894] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Accepted: 02/05/2011] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Sprague-Dawley rats were used as an acute cisplatin ototoxicity model to compare the chemo-protective efficacy of 2 sulphur-containing antioxidants (D-methionine, N-L-acetylcysteine) and 1 seleno-organic compound (ebselen). Each putative chemo-protective agent was tested at 3 different dosages in order to assess the influence of dose on auditory preservation. MATERIAL/METHODS A total of 40 Sprague-Dawley albino male rats were used in the study. Animals were divided into 10 groups, 3 groups of different doses for each protective agent and a cisplatin-treated control group. The animals were weight-matched before drug exposure to ensure similar weights in all groups. Auditory function was assessed with auditory brainstem responses and distortion product otoacoustic emissions at time zero and at 96 hours post-treatment. RESULTS At the post-treatment follow-up no significant threshold change at 8 kHz was found in the D-Met- and NAC-treated groups. All ebselen-treated animals presented significant threshold elevations. At 12 and 16 kHz, only the groups treated with 300, 450 mg/kg of D-Met and 475 mg/kg of NAC presented thresholds comparable to the pre-treatment ABR data. The ebselen-treated animals presented significant threshold shifts and showed the highest threshold elevations. The DPOAE data analysis showed that only the animals from the 350 mg/kg D-met group presented lack of statistical differences between the pre and post recordings. CONCLUSIONS Considering the outcome from the ABR and DPOAE analyses together, only the 350 mg/kg D-met group presented a complete auditory preservation against the 14 mg/kg cisplatin administered i.v. Data from ebselen pre-treated Sprague-Dawley albino male rats demonstrate that ebselen dosages up to 12 mg/kg given by i.p. administration lack auditory preservation in this species.
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MESH Headings
- Acetylcysteine/pharmacology
- Animals
- Antineoplastic Agents/toxicity
- Antioxidants/pharmacology
- Auditory Threshold/drug effects
- Azoles/pharmacology
- Cisplatin/toxicity
- Dose-Response Relationship, Drug
- Electrophysiology
- Evoked Potentials, Auditory, Brain Stem/drug effects
- Evoked Potentials, Auditory, Brain Stem/physiology
- Hair Cells, Auditory, Outer/drug effects
- Isoindoles
- Male
- Methionine/chemistry
- Methionine/pharmacology
- Models, Animal
- Organoselenium Compounds/pharmacology
- Otoacoustic Emissions, Spontaneous/drug effects
- Otoacoustic Emissions, Spontaneous/physiology
- Rats
- Rats, Sprague-Dawley
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Affiliation(s)
| | | | - Göran Laurell
- Department of Clinical Sciences, University of Umeå, Umeå, Sweden
| | - Kathleen C.M. Campbell
- Department of Audiology, Southern Illinois University School of Medicine, Springfield, IL, U.S.A
| | - Joseph Petruccelli
- Department of Mathematical Sciences, Worcester Polytechnic Institute, Worcester, MA, U.S.A
| | - Pietro Giordano
- Department of Audiology, University of Ferrara, Ferrara, Italy
| | | | - Lech Sliwa
- Institute of Physiology and Pathology of Hearing, Warsaw, Poland
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Murakami M, Cabral H, Matsumoto Y, Wu S, Kano MR, Yamori T, Nishiyama N, Kataoka K. Improving drug potency and efficacy by nanocarrier-mediated subcellular targeting. Sci Transl Med 2011; 3:64ra2. [PMID: 21209412 DOI: 10.1126/scitranslmed.3001385] [Citation(s) in RCA: 207] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Nanocarrier-mediated drug targeting is an emerging strategy for cancer therapy and is being used, for example, with chemotherapeutic agents for ovarian cancer. Nanocarriers are selectively accumulated in tumors as a result of their enhanced permeability and retention of macromolecules, thereby enhancing the antitumor activity of the nanocarrier-associated drugs. We investigated the real-time subcellular fate of polymeric micelles incorporating (1,2-diaminocyclohexane) platinum(II) (DACHPt/m), the parent complex of oxaliplatin, in tumor tissues by fluorescence-based assessment of their kinetic stability. These observations revealed that DACHPt/m was extravasated from blood vessels to the tumor tissue and dissociated inside each cell. Furthermore, DACHPt/m selectively dissociated within late endosomes, enhancing drug delivery to the nearby nucleus relative to free oxaliplatin, likely by circumvention of the cytoplasmic detoxification systems such as metallothionein and methionine synthase. Thus, these drug-loaded micelles exhibited higher antitumor activity than did oxaliplatin alone, even against oxaliplatin-resistant tumors. These findings suggest that nanocarriers targeting subcellular compartments may have considerable benefits in clinical applications.
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Affiliation(s)
- Mami Murakami
- Department of Bioengineering, Graduate School of Engineering, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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14
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Hall MD, Okabe M, Shen DW, Liang XJ, Gottesman MM. The role of cellular accumulation in determining sensitivity to platinum-based chemotherapy. Annu Rev Pharmacol Toxicol 2008; 48:495-535. [PMID: 17937596 DOI: 10.1146/annurev.pharmtox.48.080907.180426] [Citation(s) in RCA: 350] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The platinum (Pt) drugs cisplatin and carboplatin are heavily employed in chemotherapy regimens; however, similar to other classes of drugs, a number of intrinsic and acquired resistance mechanisms hamper their effectiveness. The method by which Pt drugs enter cells has traditionally been attributed to simple passive diffusion. However, recent evidence suggests a number of active uptake and efflux mechanisms are at play, and altered regulation of these transporters is responsible for the reduced accumulation of drug in resistant cells. This review suggests a model that helps reconcile the disparate literature by describing multiple pathways for Pt-containing drugs into and out of the cell.
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Affiliation(s)
- Matthew D Hall
- Laboratory of Cell Biology, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892-4255, USA
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15
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Campbell KCM, Meech RP, Klemens JJ, Gerberi MT, Dyrstad SSW, Larsen DL, Mitchell DL, El-Azizi M, Verhulst SJ, Hughes LF. Prevention of noise- and drug-induced hearing loss with D-methionine. Hear Res 2007; 226:92-103. [PMID: 17224251 DOI: 10.1016/j.heares.2006.11.012] [Citation(s) in RCA: 160] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2006] [Revised: 11/27/2006] [Accepted: 11/30/2006] [Indexed: 02/07/2023]
Abstract
A number of otoprotective agents are currently being investigated. Various types of agents have been found in animal studies to protect against hearing loss induced by cisplatin, carboplatin, aminoglycosides, or noise exposure. For over a decade we have been investigating D-methionine (D-met) as an otoprotective agent. Studies in our laboratory and others around the world have documented D-met's otoprotective action, in a variety of species, against a variety of ototoxic insults including cisplatin-, carboplatin-, aminoglycoside- and noise-induced auditory threshold elevations and cochlear hair cell loss. For cisplatin-induced ototoxicity, protection of the stria vascularis has also been documented. Further D-met has an excellent safety profile. D-met may act as both a direct and indirect antioxidant. In this report, we provide the results of three experiments, expanding findings in D-met protection in three of our translational research areas: protection from platinum based chemotherapy-, aminoglycoside- and noise-induced hearing loss. These experiments demonstrate oral D-met protection against cisplatin-induced ototoxicity, D-met protection against amikacin-induced ototoxicity, and D-met rescue from permanent noise-induced hearing loss when D-met is initiated 1h after noise exposure. These studies demonstrate some of the animal experiments needed as steps to translate a protective agent from bench to bedside.
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16
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Rybak LP, Whitworth CA, Mukherjea D, Ramkumar V. Mechanisms of cisplatin-induced ototoxicity and prevention. Hear Res 2006; 226:157-67. [PMID: 17113254 DOI: 10.1016/j.heares.2006.09.015] [Citation(s) in RCA: 379] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2006] [Revised: 09/09/2006] [Accepted: 09/24/2006] [Indexed: 11/27/2022]
Abstract
Cisplatin is a widely used chemotherapeutic agent to treat malignant disease. Unfortunately, ototoxicity occurs in a large percentage of patients treated with higher dose regimens. In animal studies and in human temporal bone investigations, several areas of the cochlea are damaged, including outer hair cells in the basal turn, spiral ganglion cells and the stria vascularis, resulting in hearing impairment. The mechanisms appear to involve the production of reactive oxygen species (ROS), which can trigger cell death. Approaches to chemoprevention include the administration of antioxidants to protect against ROS at an early stage in the ototoxic pathways and the application of agents that act further downstream in the cell death cascade to prevent apoptosis and hearing loss. This review summarizes recent data that shed new light on the mechanisms of cisplatin ototoxicity and its prevention.
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Affiliation(s)
- Leonard P Rybak
- Department of Surgery, Division of Otolaryngology, Southern Illinois University, School of Medicine, P.O. Box 19653, Springfield, IL 62794-9653, USA.
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17
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Carland M, Abrahams BF, Rede T, Stephenson J, Murray V, Denny WA, McFadyen WD. Syntheses and structural studies of platinum(II) complexes of O-methylselenomethionine and related ligands. Inorganica Chim Acta 2006. [DOI: 10.1016/j.ica.2006.03.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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18
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van den Berg JH, Beijnen JH, Balm AJM, Schellens JHM. Future opportunities in preventing cisplatin induced ototoxicity. Cancer Treat Rev 2006; 32:390-7. [PMID: 16781082 DOI: 10.1016/j.ctrv.2006.04.011] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2006] [Revised: 04/21/2006] [Accepted: 04/25/2006] [Indexed: 12/15/2022]
Abstract
Cisplatin is one of the most commonly used cytotoxic agents. Ototoxicity is an important and dose-limiting side-effect of cisplatin therapy. It is believed that cisplatin suppresses the formation of endogenous anti-oxidants that normally prevent the inner ear against reactive oxygen species (ROS). These ROS affect the outer hair cells (OHCs) in the organ of Corti. Results from clinical trials with amifostine, an anti-oxidant with possible otoprotective action during cisplatin therapy, were disappointing. A variety of agents with chemoprotective action against cisplatin-induced ototoxicity were successfully tested in animal models. It is important to translate these promising results from animal models into clinical practice. The possible routes of administration are systemic and transtympanic. An important condition when using such an agent systemically is that the compound may not affect the anti-tumor effect of cisplatin. The critical step at transtympanic administration is the diffusion of the compound through the round window membrane (RWM). This diffusion depends on the characteristics of the medication as on the properties of the RWM. Positive results of an otoprotector in clinical practice may increase the effectiveness of cisplatin therapy and can improve the quality of life for a large group of patients.
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Affiliation(s)
- J H van den Berg
- Department of Pharmacy and Pharmacology, Slotervaart Hospital/The Netherlands Cancer Institute, P.O. Box 90440, 1006 BK Amsterdam, The Netherlands.
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19
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Sahi J. Use ofin vitrotransporter assays to understand hepatic and renal disposition of new drug candidates. Expert Opin Drug Metab Toxicol 2005; 1:409-27. [PMID: 16863453 DOI: 10.1517/17425255.1.3.409] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Hepatic and renal transporters contribute to the uptake, secretion and reabsorption of endogenous compounds, xenobiotics and their metabolites and have been implicated in drug-drug interactions and toxicities. Characterising the renal and hepatic disposition of drug candidates early in development would lead to more rational drug design, as chemotypes with 'ideal' pharmacokinetic characteristics could be identified and further refined. Because transporters are often organ specific, 'custom' transporter panels need to be identified for each major organ and chemotype to be evaluated, and appropriate studies planned. This review outlines the major renal and hepatic transporters and some of the in vitro transporter reagents, assays and processes that can be used to evaluate the renal and hepatic disposition of new chemical entities during drug discovery and development.
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Affiliation(s)
- Jasminder Sahi
- CELLZDIRECT, 480 Hillsboro Street, Pittsboro, NC 27312, USA.
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20
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Carland M, Abrahams BF, Denny WA, Murray V, McFadyen WD. Hydrogen-bonded networks from novel platinum(ii) dimers. CrystEngComm 2005. [DOI: 10.1039/b511536a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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21
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Abstract
PURPOSE OF REVIEW This review discusses current research dealing with novel approaches to the prevention of ototoxicity caused by cisplatin and aminoglycoside antibiotics. RECENT FINDINGS The ototoxic mechanisms of both classes of drugs appear to involve the production of reactive oxygen species. Strategies to prevent ototoxicity have involved the administration of free-radical scavengers, iron chelators, and inhibitors of cell death pathways. The potential for interference with the desired therapeutic effects of cisplatin and aminoglycoside antibiotics is examined in many of the investigations that are described. SUMMARY These findings provide the potential for exciting clinical trials to determine whether the animal experiments can be translated into rational therapeutic approaches to the problem of ototoxicity.
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Affiliation(s)
- Leonard P Rybak
- Department of Surgery, Southern Illinois University School of Medicine, Springfield 62794-9653, USA.
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Paolicchi A, Sotiropuolou M, Perego P, Daubeuf S, Visvikis A, Lorenzini E, Franzini M, Romiti N, Chieli E, Leone R, Apostoli P, Colangelo D, Zunino F, Pompella A. gamma-Glutamyl transpeptidase catalyses the extracellular detoxification of cisplatin in a human cell line derived from the proximal convoluted tubule of the kidney. Eur J Cancer 2003; 39:996-1003. [PMID: 12706370 DOI: 10.1016/s0959-8049(03)00067-4] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nephrotoxicity is a side-effect and the main factor limiting the clinical use of cisplatin. In vivo, the administration of the cysteine-containing tripeptide glutathione (GSH) has been found to reduce nephrotoxicity, but the biochemical mechanism of this protective action is not fully understood. The present study was designed to gain insights into the mechanism by which GSH prevents cisplatin nephrotoxicity. We also wanted to verify the hypothesis of whether the protective action of GSH is mediated by products of the extracellular breakdown of GSH catalysed by gamma-glutamyl transpeptidase (GGT), an enzyme that is highly expressed in kidney tubular cells. The study was performed in HK-2 cells, derived from the immortalisation of human kidney proximal tubule cells. We investigated the influence of modulators of GGT activity and/or thiols on the antiproliferative activity of cisplatin and on the intracellular GSH content. We determined the antiproliferative activity of cisplatin, platinum cellular accumulation and DNA platination following precomplexing of the drug with thiols. The antiproliferative effect of cisplatin was minimally affected by the addition of GSH. However, when the antiproliferative assay was performed in the presence of glycyl-glycine (GlyGly), to serve as a transpeptidation acceptor and thus to stimulate GGT-mediated GSH catabolism, cisplatin-induced growth inhibition was largely prevented. This effect was not mediated through an increase of intracellular GSH levels, which were not affected by the GlyGly supplementation. The thiol dipeptide cysteinyl-glycine, i.e. the GSH catabolite generated by GGT activity, showed a higher reactivity against cisplatin in vitro than GSH, as was shown by the more rapid oxidation of its -SH groups. The cisplatin/GSH or cisplatin/cysteinyl-glycine adducts did not display an antiproliferative effect. However, 2 h precomplexing with GSH in the presence of GGT, or directly with the GSH catabolite cysteinyl-glycine, decreased the antiproliferative effect of cisplatin and drug-induced DNA platination to a greater extent than precomplexing with GSH alone. The results of the present study show that, in HK-2 cells, extracellular GSH decreases the antiproliferative effects of cisplatin only upon its hydrolysis by GGT, thereby supporting the hypothesis that the extracellular metabolism of GSH by GGT plays a role in modulating cisplatin nephrotoxicity. A primary role in the protection of HK-2 cells appears to be played by cysteinyl-glycine, the proximal product of the GGT-mediated hydrolysis of GSH, which shows a high reactivity against CDDP resulting in the rapid inactivation of the drug.
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Affiliation(s)
- A Paolicchi
- Dipartimento di Patologia Sperimentale, sez. Patologia Generale e Clinica, Università di Pisa, via Roma 55, Pisa, Italy
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23
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Korver KD, Rybak LP, Whitworth C, Campbell KM. Round window application of D-methionine provides complete cisplatin otoprotection. Otolaryngol Head Neck Surg 2002; 126:683-9. [PMID: 12087338 DOI: 10.1067/mhn.2002.125299] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Cisplatin is a widely used, very effective chemotherapeutic agent that can cause severe ototoxicity. In this study, D-methionine was tested as an otoprotectant via round window membrane (RWM) application in the chinchilla. METHODS A minute amount of cisplatin alone, or D-methionine followed by cisplatin, was applied topically directly to the intact RWM of anesthetized adult chinchillas. Auditory brainstem responses were measured before and 1 week after topical round window application. Animals were killed, and the cochleas were examined. RESULTS The ears pretreated with D-methionine were completely protected from hearing loss and hair cell loss in the organ of Corti compared with controls. The ears receiving cisplatin without D-methionine protection sustained nearly complete hearing loss with threshold shifts of >60 dB, with extensive outer hair cell loss throughout the organ of Corti but particularly in the basal turn. CONCLUSION These results demonstrate that topical D-methionine provides excellent otoprotection against cisplatin-induced ototoxicity both electrophysiologically and structurally.
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Affiliation(s)
- Kurtis D Korver
- Division of Otolaryngology, Southern Illinois University, Springfield, USA
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24
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Li G, Frenz DA, Brahmblatt S, Feghali JG, Ruben RJ, Berggren D, Arezzo J, Van De Water TR. Round window membrane delivery of L-methionine provides protection from cisplatin ototoxicity without compromising chemotherapeutic efficacy. Neurotoxicology 2001; 22:163-76. [PMID: 11405249 DOI: 10.1016/s0161-813x(00)00010-3] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Cisplatin (cis-diamminedichloroplatinum(II) (CDDP)) is a widely used, highly effective, oncolytic agent that has serious ototoxic side-effects. To test the effectiveness of local delivery, of L-methionine (L-Met) as an otoprotective agent against CDDP ototoxicity, we used a rat model of a highly metastatic breast cancer tumor, i.e. Fisher 344 rats implanted with MTLn3 breast cancer cells. Four experimental groups were evaluated--I: untreated; II: CDDP-treated (three dosages); III: systemically-delivered L-Met + CDDP-treated; IV: locally delivered L-Met + CDDP-treated. The integrity of the outer hair cells (OHCs) was determined using scanning electron microscopy (SEM); hearing was assessed by recording auditory brainstem responses (ABRs) at multiple frequencies. The chemotherapeutic effectiveness of CDDP was quantified by measuring changes in tumor mass and the presence of tumor metastasis. L-Met provided otoprotection of the OHCs against CDDP toxicity in the cochleae of rats following either systemic (III) or local (IV) administration. The ABRs were unchanged in each of the L-Met protection Groups (III and IV) and in the untreated animals of Group I. Treatment with CDDP only (II) induced significant hearing losses at both 16 and 18 kHz when compared to ABRs of untreated rats(I). CDDP was effective in controlling the MTLn3 initiated breast cancer tumors in the CDDP-treated (II) and the local L-Met protection, CDDP-treated (IV) Groups. In contrast, the tumors in the systemic L-Met protection, CDDP-treated Group (III) were not controlled by the CDDP treatment regime. This study demonstrates that local delivery of L-Met to the scala tympani of the cochlea via the round window membrane (IV) provides effective protection against CDDP ototoxicity without compromising its ability to control a highly metastatic form of cancer.
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MESH Headings
- Adenocarcinoma/drug therapy
- Adenocarcinoma/pathology
- Animals
- Antineoplastic Agents/therapeutic use
- Antineoplastic Agents/toxicity
- Cisplatin/antagonists & inhibitors
- Cisplatin/therapeutic use
- Cisplatin/toxicity
- Drug Implants
- Evoked Potentials, Auditory, Brain Stem/drug effects
- Female
- Hair Cells, Auditory, Outer/pathology
- Hearing Disorders/chemically induced
- Hearing Disorders/pathology
- Hearing Disorders/prevention & control
- Injections, Intraperitoneal
- Membranes, Artificial
- Methionine/administration & dosage
- Methionine/therapeutic use
- Microscopy, Electron, Scanning
- Neoplasm Transplantation
- Rats
- Rats, Inbred F344
- Tumor Cells, Cultured
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Affiliation(s)
- G Li
- Department of Otolaryngology, Albert Einstein College of Medicine, Bronx NY 10461, USA
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25
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Hanada K, Ninomiya K, Ogata H. Pharmacokinetics and toxicodynamics of cisplatin and its metabolites in rats: relationship between renal handling and nephrotoxicity of cisplatin. J Pharm Pharmacol 2000; 52:1345-53. [PMID: 11186242 DOI: 10.1211/0022357001777496] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
The renal handling of cisplatin and its metabolites and the relationship between the pharmacokinetics of these platinum species in the kidney and nephrotoxicity in rats were studied by carrying out pharmacokinetic-pharmacodynamic analysis. Rats received cisplatin intravenously as a bolus (2-10 mgkg(-1)) or by constant infusion (55 and 140 microg min(-1) kg(-1)). After intravenous administration of each platinum species, the platinum concentrations of unchanged cisplatin and its mobile and fixed metabolites were determined separately. Nephrotoxicity was estimated by measuring the blood urea nitrogen (BUN) levels and the sigmoid Emax model was used to determine the relationship between pharmacokinetic parameters and BUN levels 5 days after cisplatin administration. Cisplatin and its mobile metabolites in plasma distributed more rapidly and extensively into the kidney (mean apparent kidney-to-plasma concentration ratios were 2.69 and 7.12 mL (g tissue)(-1), respectively) than into the liver (less than 1 mL (g tissue)(-1)). Concomitant administration of mobile metabolites did not significantly alter the disposition of cisplatin. Nephrotoxicity, estimated by measuring BUN levels, appeared to be related to the plasma concentration of intact cisplatin, not total platinum, because mobile metabolites formed from cisplatin showed little nephrotoxicity. The sigmoid Emax model showed the maximum BUN level reached after cisplatin administration was related to the area under the renal cisplatin concentration-time curve (AUCk).
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Affiliation(s)
- K Hanada
- Department of Biopharmaceutics, Meiji Pharmaceutical University, Tokyo, Japan
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26
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Blackmore M, Richardson J, Rhodes S, Patterson L, Spencer A, Gray T. Rat renal cortical slices: Maintenance of viability and use in in vitro nephrotoxicity testing. Toxicol In Vitro 1997; 11:723-9. [DOI: 10.1016/s0887-2333(97)00080-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Deegan PM, Basinger MA, Jones MM, Hande KR. Prevention of cisplatin nephrotoxicity by exogenous atrial natriuretic peptide. Toxicology 1996; 106:159-66. [PMID: 8571387 DOI: 10.1016/0300-483x(95)03182-f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The ability of atrial natriuretic peptide (ANP) to prevent cisplatin-induced nephrotoxicity was compared to the protective effect of 3% NaCl. ANP (1 microgram/kg/min), 3% NaCl or peptide buffer vehicle (50 microliters/min) were infused for 45 min to conscious unrestrained rats immediately after cisplatin administration (5 mg/kg i.v.). Measurements taken 72 h after drug treatment indicated that compared to animals receiving cisplatin only, ANP co-treated rats had lower post-treatment plasma creatinine concentrations (0.70 +/- 0.07 vs 1.3 +/- 0.17 mg/dl; P < 0.05), blood urea nitrogen (BUN) concentrations (44.2 +/- 5.8 vs. 65.5 +/- 2.1 mg/dl; P < 0.05) and higher post-treatment glomerular filtration rates (GFR) (0.71 +/- 0.18 vs. 0.14 +/- 0.03 ml/min; P < 0.05). ANP was as effective as 3% NaCl in preventing cisplatin nephrotoxicity in this model. The effect of ANP co-treatment on the anti-tumor activity of cisplatin was also examined using the Walker 256 carcinosarcoma model. ANP treatment did not result in any observable loss in anti-tumor activity. When ANP was administered 72 h after cisplatin treatment, improvement in GFR was observed for the duration of the infusion, confirming the beneficial effect of ANP on cisplatin-damaged kidneys. ANP may have a role in the treatment and prevention of cisplatin nephrotoxicity especially in clinical situations where treatment with a large fluid volume is contraindicated.
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Affiliation(s)
- P M Deegan
- Department of Medicine, Vanderbilt University, Nashville, TN 37232-5536, USA
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