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Guillaud O, Woimant F, Couchonnal E, Dumortier J, Laurencin C, Lion-François L, Belmalih A, Bost M, Morvan E, Oussedik-Djebrani N, Lachaux A, Poujois A. Maintenance therapy simplification using a single daily dose: A preliminary real-life feasibility study in patients with Wilson disease. Clin Res Hepatol Gastroenterol 2022; 46:101978. [PMID: 35714901 DOI: 10.1016/j.clinre.2022.101978] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Revised: 06/02/2022] [Accepted: 06/04/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Single daily dose (SDD) is a good way to improve adherence by simplifying treatment. Efficacy data concerning patients with Wilson disease (WD) taking an SDD are lacking. AIM To report the effectiveness of the use of SDD for the treatment of WD. METHODS This retrospective study included WD patients followed in the French National Network who received an SDD in maintenance phase. The treatment failure was defined as a composite criterion with the occurrence of at least one of the following criterion: death, transplantation, increase of transaminases >2xULN, hepatic decompensation, neurological aggravation, severe side effects related to treatment, and/or discontinuation of treatment. RESULTS A total of 26 patients received an SDD (D-penicillamine=13, trientine=8, zinc=5) after a median interval of 152 months after diagnosis. After one year, two patients had treatment failure: transaminitis in one, continuation of neurological deterioration in the other related to a poor compliance. After a median duration of 41 months on SDD, 3 other patients had treatment failure (transaminitis=2, treatment discontinuation=1). There was no death, no liver transplantation, no hepatic decompensation, and no severe side effects related to treatment during the follow-up. Moreover, transaminases and serum exchangeable copper were not significantly different 1 year post-switch and at last follow-up compared to baseline. CONCLUSIONS Maintenance therapy simplification through the use of an SDD could be considered in some WD patients. In this pilot study, SDD was effective in 21/26 patients (81%) without any concern regarding safety.
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Affiliation(s)
- Olivier Guillaud
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France; Ramsay Générale de Santé, Clinique de la Sauvegarde, Lyon, France.
| | - France Woimant
- APHP, Hôpital Lariboisière, Centre National de Référence Pour la Maladie de Wilson, Paris, France
| | - Eduardo Couchonnal
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France
| | - Jérôme Dumortier
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France; Université Claude Bernard Lyon1, Lyon, France
| | - Chloe Laurencin
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France
| | - Laurence Lion-François
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France
| | - Abdelouahed Belmalih
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France
| | - Muriel Bost
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France
| | - Erwan Morvan
- Hôpital Fondation Adolphe de Rothschild, Centre National de Référence Pour la Maladie de Wilson, Paris, France
| | - Nouzha Oussedik-Djebrani
- APHP, Hôpital Lariboisière, Centre National de Référence Pour la Maladie de Wilson, Paris, France
| | - Alain Lachaux
- Hospices Civils de Lyon, Hôpital Femme-Mère-Enfant, Centre National de Référence Pour la Maladie de Wilson, Bron, Hôpital Edouard Herriot, Lyon Cedex 03 69437, France; Université Claude Bernard Lyon1, Lyon, France
| | - Aurélia Poujois
- Hôpital Fondation Adolphe de Rothschild, Centre National de Référence Pour la Maladie de Wilson, Paris, France
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2
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Stability constants of bio-relevant, redox-active metals with amino acids: The challenges of weakly binding ligands. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213253] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Murphy JM, Gaertner AA, Williams T, McMillen CD, Powell BA, Brumaghim JL. Stability constant determination of sulfur and selenium amino acids with Cu(II) and Fe(II). J Inorg Biochem 2019; 195:20-30. [DOI: 10.1016/j.jinorgbio.2019.03.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 02/26/2019] [Accepted: 03/01/2019] [Indexed: 01/14/2023]
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4
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Squitti R, Ghidoni R, Simonelli I, Ivanova ID, Colabufo NA, Zuin M, Benussi L, Binetti G, Cassetta E, Rongioletti M, Siotto M. Copper dyshomeostasis in Wilson disease and Alzheimer's disease as shown by serum and urine copper indicators. J Trace Elem Med Biol 2018; 45:181-188. [PMID: 29173477 DOI: 10.1016/j.jtemb.2017.11.005] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 10/26/2017] [Accepted: 11/07/2017] [Indexed: 12/23/2022]
Abstract
Abnormal handling of copper is the cause of Wilson disease (WD), a rare disorder typified by increased levels in plasma copper not-bound to ceruloplasmin (nCp-Cu, also known as 'free' copper). In Alzheimer's disease (AD), meta-analyses show that copper decreases in brain but increases in serum, due to the nCp Cu component increase. Despite the similarities, a direct comparison of copper biological status in the two diseases has never been carried out. To fill this gap, we evaluated serum copper, ceruloplasmin, nCp-Cu and Cu:Cp in 385 CE and 336 healthy controls previously investigated that were compared with 9 newly diagnosed WD patients. We then assessed 24h copper urinary excretion in 24 WD patients under D-penicillamine (D-pen) treatment and in 35 healthy controls, and compared results with those of AD patients participating to a D-pen phase II clinical trial previously published. After adjusting for sex and age, serum nCp-Cu and Cu:Cp resulted higher in AD and in WD than in healthy controls (both p<0.001). While nCp-Cu was similar between AD and WD, Cu:Cp was higher in WD (p<0.016). 24h urinary copper excretion in AD patients (12.05μg/day) was higher than in healthy controls (4.82μg/day; p<0.001). 77.8% of the AD patients under D-pen treatment had a 24h urinary excretion higher than 200μg/day, suggestive of a failure of copper control. This study provides new insight into the pathophysiology of copper homeostasis in AD, showing a failure of copper control and the Cu:Cp ratio as an eligible marker.
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Affiliation(s)
- Rosanna Squitti
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio-Fatebenefratelli, Brescia, Italy.
| | - Roberta Ghidoni
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio-Fatebenefratelli, Brescia, Italy
| | - Ilaria Simonelli
- Fatebenefratelli Foundation, AFaR Division, Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Irena D Ivanova
- Clinical Laboratory Department, St. Ivan Rilski University Hospital, Medical University, Sofia, Bulgaria
| | - Nicola Antonio Colabufo
- Dipartimento di Farmacia-Scienze del Farmaco, Università degli Studi di Bari "A. Moro, Bari, Italy
| | - Massimo Zuin
- Unit San Paolo School of Medicine Department of Health Sciences, University of Milan, Italy
| | - Luisa Benussi
- Molecular Markers Laboratory, IRCCS Istituto Centro San Giovanni di Dio-Fatebenefratelli, Brescia, Italy
| | - Giuliano Binetti
- MAC Memory Center, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Emanuele Cassetta
- Fatebenefratelli Foundation, AFaR Division, Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
| | - Mauro Rongioletti
- Department of Laboratory Medicine, Research and Development Division, 'San Giovanni Calibita', Fatebenefratelli Hospital, Isola Tiberina, Rome, Italy
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5
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Sciegienka SJ, Solst SR, Falls KC, Schoenfeld JD, Klinger AR, Ross NL, Rodman SN, Spitz DR, Fath MA. D-penicillamine combined with inhibitors of hydroperoxide metabolism enhances lung and breast cancer cell responses to radiation and carboplatin via H 2O 2-mediated oxidative stress. Free Radic Biol Med 2017; 108:354-361. [PMID: 28389407 PMCID: PMC5495544 DOI: 10.1016/j.freeradbiomed.2017.04.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Revised: 03/28/2017] [Accepted: 04/01/2017] [Indexed: 12/23/2022]
Abstract
D-penicillamine (DPEN), a copper chelator, has been used in the treatment of Wilson's disease, cystinuria, and rheumatoid arthritis. Recent evidence suggests that DPEN in combination with biologically relevant copper (Cu) concentrations generates H2O2 in cancer cell cultures, but the effects of this on cancer cell responses to ionizing radiation and chemotherapy are unknown. Increased steady-state levels of H2O2 were detected in MB231 breast and H1299 lung cancer cells following treatment with DPEN (100µM) and copper sulfate (15µM). Clonogenic survival demonstrated that DPEN-induced cancer cell toxicity was dependent on Cu and was significantly enhanced by depletion of glutathione [using buthionine sulfoximine (BSO)] as well as inhibition of thioredoxin reductase [using Auranofin (Au)] prior to exposure. Treatment with catalase inhibited DPEN toxicity confirming H2O2 as the toxic species. Furthermore, pretreating cancer cells with iron sucrose enhanced DPEN toxicity while treating with deferoxamine, an Fe chelator that inhibits redox cycling, inhibited DPEN toxicity. Importantly, DPEN also demonstrated selective toxicity in human breast and lung cancer cells, relative to normal untransformed human lung or mammary epithelial cells and enhanced cancer cell killing when combined with ionizing radiation or carboplatin. Consistent with the selective cancer cell toxicity, normal untransformed human lung epithelial cells had significantly lower labile iron pools than lung cancer cells. These results support the hypothesis that DPEN mediates selective cancer cell killing as well as radio-chemo-sensitization by a mechanism involving metal ion catalyzed H2O2-mediated oxidative stress and suggest that DPEN could be repurposed as an adjuvant in conventional cancer therapy.
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Affiliation(s)
- Sebastian J Sciegienka
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Shane R Solst
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Kelly C Falls
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Joshua D Schoenfeld
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Adrienne R Klinger
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Natalie L Ross
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Samuel N Rodman
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Douglas R Spitz
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States
| | - Melissa A Fath
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, Carver College of Medicine, The University of Iowa, Iowa City, IA 52242, United States.
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Brancaleone V, Esposito I, Gargiulo A, Vellecco V, Asimakopoulou A, Citi V, Calderone V, Gobbetti T, Perretti M, Papapetropoulos A, Bucci M, Cirino G. D-Penicillamine modulates hydrogen sulfide (H2S) pathway through selective inhibition of cystathionine-γ-lyase. Br J Pharmacol 2016; 173:1556-65. [PMID: 26890936 DOI: 10.1111/bph.13459] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 01/21/2016] [Accepted: 01/31/2016] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND PURPOSE Hydrogen sulfide (H2S) is a gasotransmitter produced from L-cysteine through the enzymatic action of cystathionine-γ-lyase (CSE) and/or cystathionine-β-synthase. D-Penicillamine is the d isomer of a dimethylated cysteine and has been used for the treatment of rheumatoid arthritis. AsD-penicillamine is structurally very similar to cysteine, we have investigated whether D-penicillamine, as a cysteine analogue, has an effect on the H2 S pathway. EXPERIMENTAL APPROACH We tested the effect of D-penicillamine (0.01-1 mM) in mouse aortic rings mounted in isolated organ baths and determined whether it could affect H2 S biosynthesis. In particular, we investigated any possible inhibitor or donor behaviour by using recombinant enzyme-based assays and an in vivo approach. KEY RESULTS D-Penicillamine, per se, showed little or no vasodilator effect, and it cannot be metabolized as a substrate in place of l-cysteine. However, d-penicillamine significantly reduced L-cysteine-induced vasodilatation in a concentration-dependent manner through inhibition of H2 S biosynthesis, and this effect occurred at concentrations 10 times lower than those needed to induce the release of H2 S. In particular, D-penicillamine selectively inhibited CSE in a pyridoxal-5'-phosphate-dependent manner. CONCLUSIONS AND IMPLICATIONS Taken together, our results suggest that D-penicillamine acts as a selective CSE inhibitor, leading to new perspectives in the design and use of specific pharmacological tools for H2 S research. In addition, the inhibitory effect of D-penicillamine on CSE could account for its beneficial action in rheumatoid arthritis patients, where H2 S has been shown to have a detrimental effect.
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Affiliation(s)
| | - Iolanda Esposito
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | | | | | | | | | | | - Thomas Gobbetti
- William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Mauro Perretti
- William Harvey Research Institute, Queen Mary University of London, London, UK
| | | | | | - Giuseppe Cirino
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
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7
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Kinetic assay of D-Penicillamine in pure and pharmaceutical formulations based on ligand substitution reaction. Microchem J 2013. [DOI: 10.1016/j.microc.2012.07.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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8
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Chong CR, Auld DS. Catalysis of Zinc Transfer by d-Penicillamine to Secondary Chelators. J Med Chem 2007; 50:5524-7. [DOI: 10.1021/jm070803y] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Curtis R. Chong
- Department of Pharmacology and Molecular Sciences, Medical Scientist Training Program, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, Department of Biology, Boston College, 140 Commonwealth Avenue, Chestnut Hill, Massachusetts 02467
| | - David S. Auld
- Department of Pharmacology and Molecular Sciences, Medical Scientist Training Program, The Johns Hopkins University School of Medicine, Baltimore, Maryland 21287, Department of Biology, Boston College, 140 Commonwealth Avenue, Chestnut Hill, Massachusetts 02467
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9
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Font L, Miquel M, Aragon CMG. Prevention of Ethanol-Induced Behavioral Stimulation by d-Penicillamine: A Sequestration Agent for Acetaldehyde. Alcohol Clin Exp Res 2006; 29:1156-64. [PMID: 16046870 DOI: 10.1097/01.alc.0000171945.30494.af] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
BACKGROUND D-Penicillamine, a sulfhydryl amino acid derived from penicillin, is a highly selective agent for sequestering in vivo acetaldehyde, the first metabolic product of ethanol. A substantial amount of research supports the idea that brain acetaldehyde, produced by central ethanol metabolism, plays a key role in determining some of the behavioral effects of ethanol administration. This study addressed two questions. First, we tested if D-penicillamine was able to modify the depressant effects of acetaldehyde on behavior. Second, we studied the effect of D-penicillamine on ethanol-induced behavioral stimulation. METHODS Mice were pretreated with 75.00 mg/kg of D-penicillamine, and 30 min later, they received acetaldehyde at 0, 100, 200, or 300 mg/kg intraperitoneally. Different groups of animals were treated with 0.0, 37.5, 75, 150, or 300 mg/kg of D-penicillamine simultaneously 30, 90, 150, or 210 min before the intraperitoneal administration of saline or 1.2, 1.8, 2.4, 3.0, or 3.6 g/kg of ethanol, respectively. The specificity of D-penicillamine effects was addressed using two drugs: cocaine (4 mg/kg) and caffeine (15 mg/kg). RESULTS Our results revealed that behavioral depression caused by acetaldehyde (200 and 300 mg/kg) could be attenuated by D-penicillamine treatment. In addition, D-penicillamine was also effective in lowering behavioral locomotion induced by ethanol (1.8 and 2.4 g/kg), without altering spontaneous locomotor activity. This sulfhydryl amino acid specifically modified the effect of ethanol on locomotion because cocaine- or caffeine-induced locomotion was unaffected. In addition, blood ethanol levels were not different between D-penicillamine- and saline-pretreated mice. CONCLUSIONS Behavioral effects produced by acetaldehyde and ethanol are blocked when animals are treated with D-penicillamine, an effective sequestration agent for acetaldehyde. These results suggest that some of the psychopharmacological effects, classically attributed to ethanol, could be mediated by its first metabolite, acetaldehyde.
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Affiliation(s)
- Laura Font
- Area de Psicobiología, Universitat Jaume I, Castelló, Spain
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Hottinger AF, Fine EG, Gurney ME, Zurn AD, Aebischer P. The copper chelator d-penicillamine delays onset of disease and extends survival in a transgenic mouse model of familial amyotrophic lateral sclerosis. Eur J Neurosci 1997; 9:1548-51. [PMID: 9240414 DOI: 10.1111/j.1460-9568.1997.tb01511.x] [Citation(s) in RCA: 123] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A subpopulation of familial cases of amyotrophic lateral sclerosis has been linked to mutations in the gene encoding Cu/Zn superoxide dismutase (SOD1). There is in vitro evidence that certain SOD1 mutants, in addition to their normal dismutation function, show increased ability of the enzyme to act as a peroxidase. This reaction is sensitive to inhibition by copper chelators. To test this hypothesis in vivo, we administered the copper chelator d-penicillamine to a transgenic mouse model of familial amyotrophic lateral sclerosis overexpressing a mutated form of human SOD1. We demonstrate that oral administration of d-penicillamine is able to delay the onset of the disease and extend the survival of these mice. Histological studies also showed a decreased loss of facial motor neurons in d-penicillamine-treated transgenic mice, corroborating the slower evolution of the disease in these animals. These results suggest that copper chelators may benefit patients with familial amyotrophic lateral sclerosis linked to mutations in the SOD1 gene.
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Affiliation(s)
- A F Hottinger
- Gene Therapy Center, Lausanne University Medical School, Switzerland
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11
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Norga K, Grillet B, Masure S, Paemen L, Opdenakker G. Human gelatinase B, a marker enzyme in rheumatoid arthritis, is inhibited by D-penicillamine: anti-rheumatic activity by protease inhibition. Clin Rheumatol 1996; 15:31-4. [PMID: 8929772 DOI: 10.1007/bf02231681] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The direct and indirect inhibitory potential of D-penicillamine toward human neutrophil and synovial fluid gelatinase B, a marker enzyme for disease severity in RA, was investigated. Gelatinase and plasminogen activator activities were assessed by SDS-polyacrylamide gel electrophoresis zymography. D-penicillamine significantly inhibits purified and synovial fluid gelatinase B in vitro at concentrations attainable in vivo and also blocks in vitro plasminogen activation. Protease inhibition may be a mechanism of action for D-penicillamine as DMARD.
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Affiliation(s)
- K Norga
- Rega Institute for Medical Research, Leuven, Belgium
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12
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Abstract
Disease-modifying antirheumatic drugs (DMARDs) are frequently used in rheumatoid arthritis. A number of physiological changes occur in the elderly which may modify the use of these medications. The most commonly used DMARDs are antimalarial drugs (particularly hydroxychloroquine), sulfasalazine and methotrexate. The principal mechanism of action of the antimalarials relates to the fact that they change intracellular pH, which downregulates numerous immune functions. Hydroxychloroquine is metabolised to 3 metabolites and has a very low clearance. It is moderately effective in dosages up to 6.4 mg/kg/day. While it is not the most effective of the DMARDs, it is the least toxic. Sulfasalazine is a prodrug which is enzymatically split in the bowel to form sulfapyridine (the principal active metabolite) and 5-aminosalicylic acid. The metabolism of sulfasalazine is complex and, to some extent, genetically determined. The mechanism of action of the drug is not well understood, but involves decreased production of cytokines and decreased proliferative response of lymphocytes. It may slow the rate of bony damage associated with rheumatoid arthritis. Nearly 50% of the patients who are prescribed sulfasalazine continue to receive the drug for up to 4 years. Sulfasalazine is not as well tolerated as hydroxychloroquine. Gastrointestinal toxicity, in particular, seems to be a problem in elderly patients taking this medication. Methotrexate is presently the most popular of the DMARDs for the treatment of rheumatoid arthritis. Methotrexate inhibits dihydrofolate reductase and adenosine release and has a secondary effect on cytokines and polymorphonuclear chemotaxis. It is highly metabolised within cells and remains there for prolonged periods. Up to 70% of patients who are prescribed methotrexate continue treatment for 5 years. Methotrexate treatment is associated with gastrointestinal, hepatic, cutaneous and, possibly, pulmonary adverse effects. The use of azathioprine, penicillamine and gold compounds is briefly reviewed in this article. Elderly patients have an increased incidence of rashes when using penicillamine, relative to young patients. There are no age-related differences in the efficacy and tolerability of azathioprine or gold therapy. The poor absorption and renal toxicity associated with cyclosporin, the new 'salvage' therapy in rheumatoid arthritis, make it generally unsuitable for use in the elderly, except under specialists' supervision.
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Affiliation(s)
- G Gardner
- Division of Rheumatology, University of Washington, Seattle, USA
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13
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Hoppe A, Denneberg T, Emanuelsson BM, Kågedal B, Lindgren S. Pharmacokinetics and bioavailability of 2-mercaptopropionylglycine administered intravenously and orally in dogs. J Vet Pharmacol Ther 1991; 14:374-84. [PMID: 1774814 DOI: 10.1111/j.1365-2885.1991.tb00851.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The pharmacokinetic disposition of 2-mercaptopropionylglycine (2-MPG) given as a single intravenous injection and/or as a single oral dose was studied in 9 normal and 13 cystinuric dogs. After intravenous injection of approximately 10 or 20 mg/kg body weight the pharmacokinetics were best described by a three-exponential function. The first phase involved a distribution process apparently including establishment of drug-plasma protein and drug-tissue binding. The second phase involved rapid renal elimination and 60% of the drug was excreted within 3 h of administration. There was also a slow terminal third phase with a long half-life after both intravenous (t1/2 = 23 h) and oral (t1/2 = 22 h) administration. No dose dependency was observed. A deep pool of reversibly tissue-bound 2-MPG was indicated by a Vss of 3.3 +/- 0.9 l/kg body weight and the long terminal elimination phase. Total clearance was estimated as 4.1 +/- 0.9 ml/min/kg body weight. 2-MPG was eliminated mainly by renal excretion, but there was a difference in recovery of dose between normal and cystinuric dogs. During the first 24 h after intravenous and oral administration, 69% and 54%, respectively, of the drug was recovered in the urine of normal dogs. The corresponding figures in cystinuric dogs were 44% and 29%, respectively. The absolute bioavailability (FAUC) was 88 +/- 20% in normal dogs.
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Affiliation(s)
- A Hoppe
- Department of Medicine and Surgery, Swedish University of Agricultural Sciences, Uppsala
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Wijnands MJ, van Riel PL, Gribnau FW, van de Putte LB. Risk factors of second-line antirheumatic drugs in rheumatoid arthritis. Semin Arthritis Rheum 1990; 19:337-52. [PMID: 2196675 DOI: 10.1016/0049-0172(90)90071-m] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- M J Wijnands
- Department of Rheumatology, University Hospital Nijmegen, The Netherlands
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15
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Affiliation(s)
- H A Bird
- Clinical Pharmacology Unit (Rheumatism Research), Royal Bath Hospital, Harrogate, United Kingdom
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Harth M, Cousin K, McCain GA. In vitro effects of two gold compounds, and D-penicillamine on the production of interferon gamma. Immunopharmacol Immunotoxicol 1990; 12:39-60. [PMID: 2112569 DOI: 10.3109/08923979009006460] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
There are contradictory reports on Interferon Gamma (IFN gamma) production by peripheral blood mononuclear cells (PBMC) in rheumatoid arthritis (RA). Since many patients previously studied were on Gold Sodium Thiomalate (GST), Auranofin (Auf), or D-Penicillamine (D-Pen) we have investigated the effects of these drugs on IFN gamma production using PBMC from normal controls (NC), and RA patients off GST, Auf, and D-Pen. Auf in low concentrations enhanced IFN gamma production by PBMC from NC but not RA; GST, and D-Pen had no effect. In other experiments PBMC were stimulated with concanavalin A (CONA A), or phytohemagglutinin (PHA). Auf, and GST inhibited IFN gamma production by CON A - stimulated NC and RA cells; D-Pen had no effect. Auf in low concentrations enhanced IFN gamma production by PHA - stimulated NC cells, but this effect was not seen with RA cells; GST inhibited both RA and NC cell production of IFN gamma, and D-Pen had no effect. Auf has a biphasic effect on IFN gamma production by NC cells with low concentrations being stimulatory or co-stimulatory, possibly by acting on T helper cells. Higher concentrations of Auf and GST, equivalent to those achieved in vivo in the course of therapy, inhibit IFN gamma production. These results suggest that gold therapy may affect IFN gamma production in RA, and could explain discrepancies noted in previous studies.
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Affiliation(s)
- M Harth
- Rheumatic Diseases Unit, University of Western Ontario, London, Ontario, Canada
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Copper therapy of inflammatory disorders in man: special reference to rheumatoid arthritis. COPPER AND ZINC IN INFLAMMATION 1989. [DOI: 10.1007/978-94-009-2619-6_5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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Matsubara T, Hirohata K. Suppression of human fibroblast proliferation by D-penicillamine and copper sulfate in vitro. ARTHRITIS AND RHEUMATISM 1988; 31:964-72. [PMID: 3261590 DOI: 10.1002/art.1780310804] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
We examined the effect of D-penicillamine (DP) and copper sulfate (CuSO4) on human fibroblast proliferation in vitro. DP plus CuSO4 inhibited both basal and interleukin-1 (IL-1)-induced tritiated thymidine incorporation into fibroblasts in a dose- and time-dependent manner. Significant inhibition was observed at the level of 60 microM in the presence of 4 microM CuSO4. At this range of concentrations, which is attained in serum and in tissues of treated patients, DP alone or CuSO4 alone did not affect fibroblast proliferation. Similar inhibition was observed with various thiols in the presence of copper, but not with disulfides such as DP disulfide or oxidized glutathione. Inhibition of fibroblast DNA synthesis induced by DP and CuSO4 was reversed by the simultaneous addition of catalase or horseradish peroxidase, but not by boiled catalase or superoxide dismutase. The inhibition by DP and CuSO4, therefore, may be attributable to hydrogen peroxide produced by these 2 agents. DP, in the presence of CuSO4, did not affect IL-1 secretion from human peripheral mononuclear phagocytes. These observations indicate that hydrogen peroxide produced by DP plus CuSO4 inhibits IL-1-induced fibroblast proliferation by directly affecting fibroblasts, without alteration of IL-1 secretion from mononuclear phagocytes. Thus, DP may play a role in inhibiting the growth of rheumatoid pannus and excessive collagenation in scleroderma by direct inhibition of fibroblast proliferation.
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Affiliation(s)
- T Matsubara
- Department of Orthopedic Surgery, Kobe University School of Medicine, Japan
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Miller DR, Fiechtner JJ, Carpenter JR, Brown RR, Stroshane RM, Stecher VJ. Plasma hydroxychloroquine concentrations and efficacy in rheumatoid arthritis. ARTHRITIS AND RHEUMATISM 1987; 30:567-71. [PMID: 3593438 DOI: 10.1002/art.1780300512] [Citation(s) in RCA: 34] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Plasma levels of hydroxychloroquine (HCQ) and its metabolites were measured, by high performance liquid chromatography, in 37 rheumatoid arthritis patients who could be clearly distinguished as responders (n = 28) or nonresponders (n = 9) to HCQ, 400 mg/day. Efficacy in both groups was determined by the patients' erythrocyte sedimentation rates, joint counts, morning stiffness, global assessments, concurrent drug therapies, and grip strength. The response rate was 76%. Responders had a mean HCQ level of 213 ng/ml, versus 306 in nonresponders (P less than 0.05). The mean level of HCQ plus total metabolites in responders was 363 ng/ml, versus 554 in nonresponders (P less than 0.01). We conclude that monitoring plasma HCQ levels is unlikely to be helpful in individualizing effective drug dosage.
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Side-effects of penicillamine: some recent aspects. ACTA ACUST UNITED AC 1987. [DOI: 10.1007/978-94-010-9775-8_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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