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Delmotte JB, Beaussier H, Auzeil N, Massicot F, Laprévote O, Raymond E, Coudoré F. Is quantitative sensory testing helpful in the management of oxaliplatin neuropathy? a two-year clinical study. Cancer Treat Res Commun 2018; 17:31-36. [PMID: 30343217 DOI: 10.1016/j.ctarc.2018.10.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Revised: 09/18/2018] [Accepted: 10/08/2018] [Indexed: 06/08/2023]
Abstract
PURPOSE To better understand how quantitative sensory testing could help the clinician in the management of oxaliplatin-induced peripheral neuropathy in terms of earlier and more reliable detection, we conducted a two-year prospective study. METHODS Thermal sensory assessment, tactile sensory assessment, neuropathic pain assessment and adverse events gradation (NCI-CTC) were performed during treatment and 6 months after treatment completion. RESULTS 35 patients were enrolled and followed-up during one year. Cold and Warm Detection Thresholds were higher 6 months after treatment completion than at enrollment. Mechanical detection thresholds didn't change significantly. Neurotoxicity was mostly grade-1, only 18% grade-2 and no grade-3. Grade-2 patients received lower oxaliplatin cumulative dose than grade-1, which reveals effective dose adaptation and grade-2 patients were more likely to develop painful neuropathy. CONCLUSION Thermal thresholds impairment emerges too late to help the clinician in the prophylaxis of neuropathy. Management of OXA-treatment based on NCI-CTC, as currently recommended, remains the best way to detect neuropathy and ensure treatment adaptation.
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Affiliation(s)
- J B Delmotte
- Clinical Research Center, Paris Saint Joseph Hospital, 185 rue Raymond Losserand, Paris, France.
| | - H Beaussier
- Clinical Research Center, Paris Saint Joseph Hospital, 185 rue Raymond Losserand, Paris, France
| | - N Auzeil
- UMR8638, Sorbonne Paris Cité University, Faculty of Pharmacy, Paris, France
| | - F Massicot
- UMR8638, Sorbonne Paris Cité University, Faculty of Pharmacy, Paris, France
| | - O Laprévote
- UMR8638, Sorbonne Paris Cité University, Faculty of Pharmacy, Paris, France
| | - E Raymond
- Oncology Department, Paris Saint Joseph Hospital, Paris, France
| | - F Coudoré
- CESP/INSERM UMR-S 1178, Paris-Sud Saclay University, Faculty of Pharmacy, Châtenay-Malabry, France; Biology Unit, Paris Saint Joseph Hospital, Paris, France
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Fretellier N, Idée J, Bruneval P, Guerret S, Daubiné F, Jestin G, Factor C, Poveda N, Dencausse A, Massicot F, Laprévote O, Mandet C, Bouzian N, Port M, Corot C. Hyperphosphataemia sensitizes renally impaired rats to the profibrotic effects of gadodiamide. Br J Pharmacol 2012; 165:1151-62. [PMID: 21740412 DOI: 10.1111/j.1476-5381.2011.01585.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND AND PURPOSE Hyperphosphataemia is common in patients with nephrogenic systemic fibrosis (NSF). NSF has been linked to administration of gadolinium (Gd) chelates (GCs) and elevated serum phosphate levels accelerate the release of Gd from linear, non-ionic GCs but not macrocyclic GCs. Hence, we determined whether hyperphosphataemia is a cofactor or risk factor for NSF by investigating the role of hyperphosphataemia in renally impaired rats. EXPERIMENTAL APPROACH Firstly, the clinical, pathological and bioanalytical consequences of hyperphosphataemia were investigated in subtotal nephrectomized (SNx) Wistar rats following i.v. administration of the non-ionic, linear GC gadodiamide (5 × 2.5 mmol·kg(-1) ·day(-1) ). Secondly, the effects of several GCs were compared in these high-phosphate diet fed rats. Total Gd concentration in skin, femur and plasma was measured by inductively coupled plasma mass spectrometry (ICP-MS) and free Gd(3+) in plasma by liquid chromatography coupled to ICP-MS. Relaxometry was used to measure dissociated Gd in skin and bone. KEY RESULTS Four out of seven SNx rats fed a high-phosphate diet administered gadodiamide developed macroscopic and microscopic (fibrotic and inflammatory) skin lesions, whereas no skin lesions were observed in SNx rats treated with saline, the other GCs and free ligands or in the normal diet, gadodiamide-treated group. Unlike the other molecules, gadodiamide gradually increased the r(1) relaxivity value, consistent with its in vivo dissociation and release of soluble Gd. CONCLUSIONS AND IMPLICATIONS Hyperphosphataemia sensitizes renally impaired rats to the profibrotic effects of gadodiamide. Unlike the other GCs investigated, gadodiamide gradually dissociates in vivo. Our data confirm that hyperphosphataemia is a risk factor for NSF.
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Affiliation(s)
- N Fretellier
- Guerbet, Research Division, Aulnay-sous-Bois, France.
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Massicot F, Auzeil N, Gaudin M, Divetain A, Rat P, Regazzetti A, Laprévote O. A new model to evaluate the possible contribution of peripheral infection in Alzheimer's disease. Toxicol Lett 2011. [DOI: 10.1016/j.toxlet.2011.05.764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Illy S, Tillement O, Machizaud F, Dubois JM, Massicot F, Fort Y, Ghanbaja J. First direct evidence of size-dependent structural transition in nanosized nickel particles. ACTA ACUST UNITED AC 2009. [DOI: 10.1080/01418619908210344] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Ezoulin M, Liu Z, Dutertre-Catella H, Wu G, Dong C, Heymans F, Ombetta J, Rat P, Massicot F. A new acetylcholinesterase inhibitor with anti-PAF activity modulates oxidative stress and pro-inflammatory mediators release in stimulated RAW 264.7 macrophage cells. Comparison with tacrine. Int Immunopharmacol 2007; 7:1685-94. [DOI: 10.1016/j.intimp.2007.08.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2007] [Revised: 08/28/2007] [Accepted: 08/30/2007] [Indexed: 10/22/2022]
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Ezoulin MJM, Dong CZ, Liu Z, Li J, Chen HZ, Heymans F, Lelièvre L, Ombetta JE, Massicot F. Study of PMS777, a new type of acetylcholinesterase inhibitor, in human HepG2 cells. Comparison with tacrine and galanthamine on oxidative stress and mitochondrial impairment. Toxicol In Vitro 2006; 20:824-31. [PMID: 16472967 DOI: 10.1016/j.tiv.2006.01.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2005] [Revised: 12/06/2005] [Accepted: 01/05/2006] [Indexed: 10/25/2022]
Abstract
Acetylcholinesterase inhibitors are commonly used as cognitive enhancers for dementia in aged people. Among them, tacrine (THA) but not galanthamine, was shown to exhibit hepatotoxicity which reduces its clinical use. PMS777, both a PAF antagonist and a new potent acetylcholinesterase inhibitor was recently demonstrated to reverse scopolamine-induced amnesia in mice without toxicity. In the present study, the effects of THA, galanthamine and PMS777 were compared in HepG2 cells on the oxidative parameters involved in the reported hepatotoxicity of THA. THA (> or = 10 microM) induced an oxidative stress as shown by elevated ROS and MDA production and by a decrease in GSH level. Moreover, mitochondrial membrane potential and redox status were decreased. At low concentrations (< or =10 microM), there was no significant disturbance. None of the oxidative stress markers was affected by PMS777 up to the maximum concentration tested and it is suggested that PMS777 is not cytotoxic for HepG2 cells. Galanthamine was also without cytotoxicity. Our results suggest that the toxic effect of THA above 10 microM may be caused by drug-induced mitochondrial energization impairment and destabilisation of membrane phospholipids associated with an oxidative stress. In contrast by preventing these dysfunctions, PMS777 could be safer than THA.
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Affiliation(s)
- M J M Ezoulin
- Unité de Pharmacochimie Moléculaire et Systèmes Membranaires (EA2381), Université Paris 7-Denis Diderot, Case 7066, 2, Place Jussieu, 75251 Paris Cedex 05, France
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Plantier-Royon R, Portella C, Massicot F, Saleur D, Sudha A. Solvent-Free Synthesis of Tartramides Under Microwave Activation. SYNTHESIS-STUTTGART 2004. [DOI: 10.1055/s-2001-18724] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Tillement O, Illy-cherrey S, Dubois JM, Begin-colin S, Massicot F, Schneider R, Fort Y, Ghanbaja J, Bellouard C, Belin-ferre E. Synthesis and properties of nearly single-shell nickel clusters in amorphous aluminium oxides. ACTA ACUST UNITED AC 2002. [DOI: 10.1080/01418610208240009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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9
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Thanh XD, Massicot F, Do B, Breget R, Durand D, Warnet JM, Claude JR, Taniguchi N, Clot JP. Effects of 24R,25-dihydroxyvitamin D3 on alkaline phosphatase activity in pig renal epithelial LLC-PK1 cells in culture. Gen Pharmacol 1998; 31:459-62. [PMID: 9703220 DOI: 10.1016/s0306-3623(98)00011-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
1. The effects of 24R,25-dihydroxyvitamin D3 [24,25(OH)2D3] on alkaline phosphatase activity (ALP) were evaluated in pig kidney LLC-PK1 cells in culture. 2. The vitamin D3 metabolite increased ALP activity in these cells, whereas no effect of the hormone was observed on gamma-glutamyltranspeptidase and acid phosphatase activities. 3. ALP activity was stimulated after 3- to 12-hr incubation in the presence of 10(-9) mol/l 24,25(OH)2D3 with a maximum after 6 hr. 4. The hormonal induction of ALP activity was prevented by pretreatment of cells by actinomycin D. 5. It is proposed that 24,25(OH)2D3 could increase ALP activity by de novo protein synthesis.
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Affiliation(s)
- X D Thanh
- Laboratoire de Pharmacologie/CHU-UFR de Pharmacie, Université d'Angers, France
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10
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Massicot F, Pautre M, Loudghiri M, Pham-Huy C, Rossignol P, Sadlo M, Liu X, Duc H, Warnet JM, Claude J. Comparative cytotoxic effect of cantharidine and norcantharidine in mouse peritoneal macrophages and in renal epithelial cells. Toxicol Lett 1998. [DOI: 10.1016/s0378-4274(98)80777-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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11
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Massicot F, Do Than X, Do B, Durand M, Warnet JM, Claude J, Clot UP. Stimulating effect of 24, 25-Dihydroxy-vitamin D3 on brush border membrane activities in LLC-PK1 renal epithelial cells. Toxicol Lett 1998. [DOI: 10.1016/s0378-4274(98)80665-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Chikhi-Chorfi N, Pham-Huy C, Sandouk P, Sadeg N, Pecquart C, Massicot F, Galons H, Scherrmann J, Warnet J, Claude J. Pharmacokinetic profiles of methadone enantiomers and its major metabolite in serum, saliva and urine of treated patients. Toxicol Lett 1998. [DOI: 10.1016/s0378-4274(98)80410-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Pham-Huy C, Chikhi-Chorfi N, Galons H, Sadeg N, Laqueille X, Aymard N, Massicot F, Warnet JM, Claude JR. Enantioselective high-performance liquid chromatography determination of methadone enantiomers and its major metabolite in human biological fluids using a new derivatized cyclodextrin-bonded phase. J Chromatogr B Biomed Sci Appl 1997; 700:155-63. [PMID: 9390725 DOI: 10.1016/s0378-4347(97)00317-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The simultaneous determination of methadone (Mtd) enantiomers and its major metabolite, 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP), in human urine and serum by enantioselective HPLC using a new Cyclobond 1-2000 RSP column is described. After alkaline extraction from urine or serum with estazolam as an internal standard, Mtd enantiomers and its metabolite (EDDP) are separated on the previous column with reversed-mobile phase and detected at 210 nm. Peak resolutions are about 2.0 for Mtd enantiomers. The relative standard deviations (R.S.D.) of Mtd and EDDP standards are between 0.5 and 4.5%. Most drugs of abuse are shown not to interfere with this technique. The method has been applied to study the levels of each Mtd enantiomer and of its racemic metabolite in urine and serum of patients under maintenance treatment for opiate dependence. In urine, R-(-)-Mtd levels are always higher (about 2+/-0.5-fold) than those of S-(+)-Mtd and in most cases, metabolite concentrations are greater than those of global Mtd enantiomers. However, the R-(-) enantiomer levels of residual drug in serum of some patients were lower than those of its antipode. This method is suitable for pharmacokinetic and toxicological studies of Mtd enantiomers and its major metabolite in biological fluids.
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Affiliation(s)
- C Pham-Huy
- Laboratoire de Toxicologie, Faculté de Pharmacie, Université de Paris V, France
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Massicot F, Lamouri A, Martin C, Pham-Huy C, Heymans F, Warnet JM, Godfroid JJ, Claude JR. Preventive effects of two PAF-antagonists, PMS 536 and PMS 549, on cyclosporin-induced LLC-PK1 oxidative injury. J Lipid Mediat Cell Signal 1997; 15:203-14. [PMID: 9034965 DOI: 10.1016/s0929-7855(96)00555-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The present study was undertaken to evaluate the effects of platelet activating factor (PAF) antagonists, PMS 536 and PMS 549, on LLC-PK1 toxicity induced by Cyclosporin A (CsA). The LLC-PK1 cell line was used as an in vitro model. CsA cytotoxicity was determined in relation with ATP content. Alkaline phosphatase and N-acetyl-beta-glucosaminidase activities, which are directly correlated with tubular cell damage, were used as markers for renal injury. CsA alone provoked in the LLC-PK1 cell line a marked decrease in cell viability (55%) and membrane integrity (56%), and a significant increase in AP and NAG activities and in oxidized glutathione level. The ATP decrease and the ADP increase, resulting in a decline of the ATP/ADP ratio, is indicative of an anoxic energy charge. Co-treatment with CsA plus PMS 536 or PMS 549 resulted in a minor decrease in cell viability and in significant membrane integrity recovery. Moreover, the ATP depletion and the increase in ATP metabolites, hypoxanthine and uric acid induced by CsA were strongly prevented by PAF antagonists. In contrast, GSSG level remained high as in CsA-treated cells, but GSH level was in the range of controls. Our results suggest that both PAF antagonists attenuate CsA oxidative injury and prevent energy metabolism disturbances probably by maintaining cell integrity. The lipophilicity of both molecules may be responsible for membrane stabilization and may confer the protective effects observed in energy metabolism. The results obtained with PMS 536 and PMS 549 are indicative of interactions between PAF and CsA in renal injury and suggest the therapeutic potential of these PAF-antagonists against CsA-induced nephrotoxicity.
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Affiliation(s)
- F Massicot
- Laboratoire de Toxicologie (EA 207), Faculté de Pharmacie, Université René-Descartes, Paris, France
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Massicot F, Martin C, Dutertre-Catella H, Ellouk-Achard S, Pham-Huy C, Thevenin M, Rucay P, Warnet JM, Claude JR. Modulation of energy status and cytotoxicity induced by FK506 and cyclosporin A in a renal epithelial cell line. Arch Toxicol 1997; 71:529-31. [PMID: 9248632 DOI: 10.1007/s002040050423] [Citation(s) in RCA: 24] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
FK506 and cyclosporin A (CsA) are two potent immunosupressants with similar toxicity profile. Nephrotoxicity is the main adverse effect of both compounds. The aim of this study is to compare the in vitro nephrotoxic effects on renal epithelial cell line LLC-PK1 by measuring cell viability and energy status as evaluated by concentrations of ATP and ATP metabolites. Cell viability (expressed as IC50 was assessed via thiazolyl blue (MTT) assay after incubation for 4-24 h with FK506 or CsA. ATP and its metabolites were determined by HPLC after 4 and 6 h incubation with FK506 or CsA alone at the respective IC50. Both FK506 and CsA decreased cell viability to similar extents, in a dose- and time-dependent manner. After 4 h incubation, both drugs decreased ATP levels (-25%) and increased uric acid levels. However, the latter percentage increase was twofold higher with CsA (18%) than with FK506 (9%). The energy charge, calculated according to levels of adenine nucleotides, was decreased by 10% in FK506-treated cells and by 27% in CsA-treated cells. At the end of 6-h incubation, FK506-treated cells maintained ATP levels coupled with energy charge at near control levels whereas the levels were 32% lower in CsA treated cells. Compared to the 4 h-incubation, the increase in uric acid was similar for FK506 but was doubled with CsA. The decrease in cell integrity and ATP depletion induced by CsA in LLC-PK1 cells was only transiently observed with FK506. By preserving energy status, FK506 leads to fewer metabolic disturbances than CsA in the renal epithelial cell line LLC-PK1, demonstrating a minor potential nephrotoxicity.
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Affiliation(s)
- F Massicot
- Laboratoire de Toxícologie (EA 207), Université René Descartes (Paris V), France
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Do Thanh X, Massicot F, Do B, Breget R, Nivet V, Durand D, Warnet JM, Claude JR, Clot JP. 1 alpha,25-dihydroxyvitamin D3 stimulated alkaline phosphatase activity in cultured pig kidney epithelial LLC-PK1 cells. Acta Physiol Scand 1996; 158:107-11. [PMID: 8876754 DOI: 10.1046/j.1365-201x.1996.481282000.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
The effects of 1 alpha,25-dihydroxyvitamin D3 (1,25 (OH)2D3) and human growth hormone (hGH) on the activity of alkaline phosphatase (ALP) were evaluated in pig kidney LLC-PK1 cultured cells. 1,25(OH)2D3 (10(-9)-10(-6) mol L-1) and hGH (10(-7) mol L-1) increased ALP activity in these cells while no hormonal effect was detected on two other enzyme activities: gamma-glutamyl transferase and acid phosphatase. ALP activity was maximally increased after 4.5-6 h incubation with both hormones. The hormonal induction of ALP activity was prevented by a pretreatment of cells with actinomycin D. Thus, 1,25 (OH)2D3 and may be hGH could stimulate ALP activity via a transcription of some gene.
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Affiliation(s)
- X Do Thanh
- Laboratoire de Biochimie/Physiologie, UFR de Médecine/Pharmacie, Université d'Angers, France
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Le Texier L, Favre E, Ronzani N, Massicot F, Blavet N, Pirotzky E, Godfroid JJ. Structure-activity relationships in platelet-activating factor (PAF). 8. Tetrahydrofuran derivatives as dual PAF antagonists and acetylcholinesterase inhibitors: anti-acetylcholinesterase activity and comparative SAR. J Lipid Mediat Cell Signal 1996; 13:207-22. [PMID: 8816985 DOI: 10.1016/0929-7855(95)00053-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
2,5-disubstituted tetrahydrofuran derivatives display a dual functionality: they are PAF antagonists and acetylcholinesterase (AChE) inhibitors. In vitro anti-AChE activity and in vivo trials are presented herein. These compounds are competitive and potent AChE inhibitors. Structure-activity relationships are described and compared with PAF-antagonist results. The presence of an onium group, a suitable distance supplied by a chain of 7 or 10 carbon atoms separating the function from the polar head and an appreciable chain hydrophobicity (4 < sigma f < 7) are the main features required for a dual activity. The derivatives are evaluated in a mouse passive avoidance model. Only compounds with both activities are able to reverse scopolamine-induced amnesia. In addition, they display a very weak toxicity.
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Pham-Huy C, Sahui-Gnassi A, Massicot F, Galons H, Dutertre-Catella H, Radenen B, Warnet JM, Duc HT, Claude JR. Analysis of (S)- and (R)-propranolol in human plasma and urine by a specific immunoenzymatic assay versus HPLC. Arch Toxicol Suppl 1995; 17:522-7. [PMID: 7786188 DOI: 10.1007/978-3-642-79451-3_45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- C Pham-Huy
- Laboratoire de Toxicologie (EA 207), Faculté de Pharmacie, Université René-Descartes, Paris, France
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Massicot F, Thevenin M, Martin C, Warnet JM, Dutertre-Catella H, Claude JR. Effects of cyclosporin on kidney glutathione metabolism and cytochrome P-450 in the rabbit: possible implication of eicosanoid metabolism. Drug Chem Toxicol 1994; 17:449-62. [PMID: 7821232 DOI: 10.3109/01480549409014311] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This study was designed to assess Cyclosporin A (CsA) nephrotoxicity in the rabbit-possibly a more sensitive species than the rat-and to explore the mechanism of this toxicity with special attention to glutathione metabolism disturbances and cytochrome P-450 level in the kidney. CsA given for three days at a daily dose of 50 mg/kg (s.c.) induced nephrotoxicity as assessed by histological abnormalities and by a significant increase in blood urea nitrogen and urinary enzyme activities: N-acetyl-beta-D-glucosaminidase and L-gamma-glutamyl-transferase. This observed renal injury was of the same order as that obtained in the rat. In addition, there was a significant increase in oxidized glutathione content (40%) while reduced glutathione level remained unchanged. Concurrently, there was a significant decrease in renal cortex glutathione reductase (49%) and to a lesser extent in glutathione peroxidase activities (16%) whereas that of glutathione-S-transferase was not modified. A significant increase in renal cortex cytochrome P-450 (3-fold versus controls) was also observed. The mechanism of CsA nephrotoxicity is to be related to a cytochrome P-450 induction. This event could induce the observed impairments in renal glutathione metabolism and Na+K(+)-ATPase activity, via a possible increase in eicosanoid metabolism.
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Affiliation(s)
- F Massicot
- Laboratoire de Toxicologie (E.A. 207), Faculté de Pharmacie, Paris, France
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Ellouk-Achard S, Pham-Huy C, Martin C, Massicot F, Dutertre-Catella H, Thevenin M, Rucay R, Duc H, Warnet JM, Claude J. Comparative effects off FK 506 and cyclosporine a on cell viability, ATP and Calcium content in non-induced or induced rat hepatocytes in primary culture. Toxicol Lett 1994. [DOI: 10.1016/0378-4274(94)90263-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Massicot F, Pham-Huy C, Martin C, Ellouk-Achard S, Dutertre-Catella H, Thevenin M, Rucay R, Warnet JM, Duc H, Claude J. Comparative effects of FK 506 and cyclosporin A on cell viability and ATP content in the renal epithelial cell line LLC-PK1. Toxicol Lett 1994. [DOI: 10.1016/0378-4274(94)90352-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Massicot F, Warnet JM, Dutertre-Catella H, Martin C, Braquet P, Claude JR. Protection against cyclosporin-induced nephrotoxicity: 1. Effect of a PAF antagonist, BN50726. J Lipid Mediat Cell Signal 1994; 9:217-24. [PMID: 7921781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The clinical usefulness of cyclosporin A (CsA) in organ transplantation is limited by its intrinsic nephrotoxicity, the mechanisms of which have not yet been completely elucidated. Various processes could be responsible for the CsA-induced nephrotoxicity including an interaction with glutathione metabolism, a lipoperoxidative process, or an interaction with platelet-activating factor (PAF). Therefore, the aim of this study was to assess the potential role of PAF in CsA-induced nephrotoxicity using a new PAF antagonist, BN50726. CsA alone provoked a significant increase in serum urea, urinary gamma-glutamyl transferase activity and oxidized glutathione level of kidney cortex in the rat. In contrast, when rats were treated with CsA plus BN50726, urinary gamma-glutamyltransferase activity was similar to that of controls and oxidized glutathione was significantly lower than that measured in rats treated with CsA alone. However, serum urea remained increased as it was in the CsA group. Our results suggest that BN50726 is able to prevent the damage of renal membranes probably by an antiperoxidative activity. These data indicate the potential therapeutic capacity of a PAF antagonist, BN50726, in reducing CsA nephrotoxicity and suggest interactions between PAF and CsA in the mechanism of renal injury.
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Affiliation(s)
- F Massicot
- Laboratoire de Toxicologie (E.A. 207), Faculté de Pharmacie, Paris, France
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Favre E, Heymans F, Redeuilh C, Batt JP, Massicot F, Blavet N, Braquet P, Godfroid JJ. Structure-activity relationships in platelet-activating factor (PAF antagonists). 6. Synthesis and in vitro antagonistic activities of 2-substituted 5-oxotetrahydrofurans. J Lipid Mediat 1992; 5:23-40. [PMID: 1449553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The synthesis of 2,5-disubstituted tetrahedrofuran compounds as potential in vitro PAF antagonists is described. Results demonstrate that the structural requirements for potent PAF antagonist activity are: a moderate lipophilic group or a trimethoxyphenyl group in position-5, and a long aliphatic chain terminated by a cationic polar head in position-2. The cis-trans configuration does not induce any difference in biological activity. Some conformational features of the putative PAF receptor are proposed in light of the present findings.
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Affiliation(s)
- E Favre
- Laboratoire de Pharmacochimie Moléculaire, Unité de Recherches Chimie et Pharmacologie, Université Paris, France
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Furno-de Winter A, Broquet C, Haelters JP, Massicot F, Sturtz G, Godfroid JJ. Structure-activity relationships in platelet-activating factor (PAF). 5. Synthesis and in vitro antagonistic activities of ketophosphonates. J Lipid Mediat 1991; 3:289-300. [PMID: 1773030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The synthesis of new ketophosphonate isosteres of biosynthetic precursors of ether glycerophospholipids resistant to phospholipase C is described following two routes depending on whether the alkoxy chain is introduced before or after the phosphonic moiety. The common intermediates are ketophosphonic acids: better yields were obtained by attaching the n-octadecyl chain to epichlorohydrin, opening and oxidation, blockage of the resulting ketone as the chlorohydrazone, followed by an Arbuzov reaction or by azoene formation and Michael addition. These ketophosphonates differing in chain length in position 3 exhibit potent agonistic activities on rabbit platelets which increase with the number of methylene groups between the phosphonate and the ammonium moieties.
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Massicot F, Pham Huy C, Martin C, Thevenin M, Warnet JM, Claude JR. Inhibitory effects of a platelet activating factor-antagonist 48740RP in cyclosporin-induced nephrotoxicity in the rat as assessed by renal glutathione metabolism parameters. Arch Toxicol Suppl 1991; 14:213-7. [PMID: 1687197 DOI: 10.1007/978-3-642-74936-0_44] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- F Massicot
- Laboratoire de Toxicologie, Faculté de Pharmacie, Paris, France
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Massicot F, Falcou R, Heymans F, Godfroid JJ, Apfelbaum M. Effects of a new anorectic drug (PM 170) on development of gold thioglucose-induced obesity in mice. Gen Pharmacol 1987; 18:249-52. [PMID: 3106136 DOI: 10.1016/0306-3623(87)90007-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Gold thioglucose (GTG)-injected mice and lean mice were treated for 16 days with PM 170. The body weight and body fat were significantly increased by GTG injection and these increases in the GTG-obese group were reduced by PM 170. PM 170 also reduced food intake (16%), total body triacylglycerol (51%) and total body cholesterol (36%). Basal lipolysis of white adipose tissue, as measured by glycerol release, was stimulated by 150%. Compared to GTG-PM 170 mice, body weight gain was 2 times higher in GTG-pair-fed mice. Body fat and total body lipid content remained elevated.
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Massicot F, Ricquier D, Godfroid JJ, Apfelbaum M. Activation of energy expenditure in the rat by a new non-amphetaminic compound: the (4-chlorophenoxyacetate) N-methyl 3-hydroxymethyl piperidine, hydrochloride (PM 170). Int J Obes (Lond) 1985; 9:451-8. [PMID: 3841663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The (4-chlorophenoxyacetate) N-methyl 3-hydroxymethyl piperidine, hydrochloride (PM 170), chemically unrelated to amphetamine, was studied in normal rats for any thermogenic effect. It was given in graded doses. After an acute treatment PM 170 increases energy expenditure by increasing resting oxygen consumption (VO2) and in the doses used, produced dose-related increases in VO2. Energy expenditure of rats treated for 16 days was chronically elevated, while body weight gain and food intake were reduced. It also stimulated mitochondrial oxygen consumption probably by partial uncoupling of respiration from ATP synthesis. The disruption of oxidative phosphorylation could partially explain the effect of this compound on resting metabolic rate.
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