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Zeng X, Li C, Liu Y, Liu W, Hu Y, Chen L, Huang X, Li Y, Hu K, Ouyang D, Rao T. HLA-B*35:01-mediated activation of emodin-specific T cells contributes to Polygonum multiflorum thunb. -induced liver injury in mice. JOURNAL OF ETHNOPHARMACOLOGY 2024; 334:118523. [PMID: 38969149 DOI: 10.1016/j.jep.2024.118523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2024] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/07/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE HLA-B*35:01 has been identified as a risk allele for Polygonum multiflorum Thunb.-induced liver injury (PMLI). However, the immune mechanism underlying HLA-B*35:01-mediated PMLI remains unknown. AIM OF THE STUDY To characterize the immune mechanism of HLA-B*35:01-mediated PMLI. MATERIALS AND METHODS Components of P. multiflorum (PM) bound to the HLA-B*35:01 molecule was screened by immunoaffinity chromatography. Both wild-type mice and HLA-B*35:01 transgenic (TG) mice were treated with emodin. The levels of transaminases, histological changes and T-cell response were assessed. Splenocytes from emodin-treated mice were isolated and cultured in vitro. Phenotypes and functions of T cells were characterized upon drug restimulation using flow cytometry or ELISA. Emodin-pulsed antigen-presenting cells (APCs) or glutaraldehyde-fixed APCs were co-cultured with splenocytes from emodin-treated transgenic mice to detect their effect on T-cell activation. RESULTS Emodin, the main component of PM, could non-covalently bind to the HLA-B*35:01-peptide complexes. TG mice were more sensitive to emodin-induced immune hepatic injury, as manifested by elevated aminotransferase levels, infiltration of inflammatory cells, increased percentage of CD8+T cells and release of effector molecules in the liver. However, these effects were not observed in wild-type mice. An increase in percentage of T cells and the levels of interferon-γ, granzyme B, and perforin was detected in emodin-restimulated splenocytes from TG mice. Anti-HLA-I antibodies inhibited the secretion of these effector molecules induced by emodin. Mechanistically, emodin-pulsed APCs failed to stimulate T cells, while fixed APCs in the presence of emodin could elicit the secretion of T cell effector molecules. CONCLUSION The HLA-B*35:01-mediated CD8+ T cell reaction to emodin through the P-I mechanism may contribute to P. multiflorum-induced liver injury.
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Affiliation(s)
- Xiangchang Zeng
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha Duxact Biotech Co., Ltd., Changsha, China; Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Chaopeng Li
- Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha Duxact Biotech Co., Ltd., Changsha, China
| | - Yating Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Wenhui Liu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Yuwei Hu
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Lulu Chen
- Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha Duxact Biotech Co., Ltd., Changsha, China
| | - Xinyi Huang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China
| | - Ying Li
- Department of Infectious Diseases, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Viral Hepatitis, Xiangya Hospital, Central South University, Changsha, China
| | - Kai Hu
- Department of Neurology, Xiangya Hospital, Central South University, Changsha, China.
| | - Dongsheng Ouyang
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory for Bioanalysis of Complex Matrix Samples, Changsha Duxact Biotech Co., Ltd., Changsha, China; Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China.
| | - Tai Rao
- Department of Clinical Pharmacology, Xiangya Hospital, Central South University, Changsha, China; Hunan Key Laboratory of Pharmacogenetics, Institute of Clinical Pharmacology, Central South University, Changsha, China; Engineering Research Center of Applied Technology of Pharmacogenomics, Ministry of Education, Changsha, China; National Clinical Research Center for Geriatric Disorders, Changsha, China.
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Adair K, Meng X, Naisbitt DJ. Drug hapten-specific T-cell activation: Current status and unanswered questions. Proteomics 2021; 21:e2000267. [PMID: 33651918 DOI: 10.1002/pmic.202000267] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 11/07/2022]
Abstract
Drug haptens are formed from the irreversible, covalent binding of drugs to nucleophilic moieties on proteins, which can warrant adverse reactions in the body including severe delayed-type, T-cell mediated, drug hypersensitivity reactions (DHRs). While three main pathways exist for the activation of T-cells in DHRs, namely the hapten model, the pharmacological interaction model and the altered peptide repertoire model, the exact antigenic determinants responsible have not yet been defined. In recent years, progress has been made using advanced mass spectrometry-based proteomic methods to identify protein carriers and characterise the structure of drug-haptenated proteins. Since genome-wide association studies discovered a link between human leukocyte antigens (HLA) and an individual's susceptibility to DHRs, much effort has been made to define the drug-associated HLA ligands driving T-cell activation, including the elution of natural HLA peptides from HLA molecules and the generation of HLA-binding peptides. In this review, we discuss our current methodology used to design and synthesise drug-modified HLA ligands to investigate their immunogenicity using T-cell models, and thus their implication in drug hypersensitivity.
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Affiliation(s)
- Kareena Adair
- Department of Molecular and Clinical Pharmacology, MRC Centre for Drug Safety Science, University of Liverpool, Liverpool, UK
| | - Xiaoli Meng
- Department of Molecular and Clinical Pharmacology, MRC Centre for Drug Safety Science, University of Liverpool, Liverpool, UK
| | - Dean J Naisbitt
- Department of Molecular and Clinical Pharmacology, MRC Centre for Drug Safety Science, University of Liverpool, Liverpool, UK
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Rankin GO, Racine CR, Valentovic MA, Anestis DK. Nephrotoxic Potential of Putative 3,5-Dichloroaniline (3,5-DCA) Metabolites and Biotransformation of 3,5-DCA in Isolated Kidney Cells from Fischer 344 Rats. Int J Mol Sci 2020; 22:ijms22010292. [PMID: 33396638 PMCID: PMC7796304 DOI: 10.3390/ijms22010292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 10/22/2020] [Accepted: 12/28/2020] [Indexed: 11/24/2022] Open
Abstract
The current study was designed to explore the in vitro nephrotoxic potential of four 3,5-dichloroaniline (3,5-DCA) metabolites (3,5-dichloroacetanilide, 3,5-DCAA; 3,5-dichlorophenylhydroxylamine, 3,5-DCPHA; 2-amino-4,6-dichlorophenol, 2-A-4,6-DCP; 3,5-dichloronitrobenzene, 3,5-DCNB) and to determine the renal metabolism of 3,5-DCA in vitro. In cytotoxicity testing, isolated kidney cells (IKC) from male Fischer 344 rats (~4 million/mL, 3 mL) were exposed to a metabolite (0–1.5 mM; up to 90 min) or vehicle. Of these metabolites, 3,5-DCPHA was the most potent nephrotoxicant, with 3,5-DCNB intermediate in nephrotoxic potential. 2-A-4,6-DCP and 3,5-DCAA were not cytotoxic. In separate experiments, 3,5-DCNB cytotoxicity was reduced by pretreating IKC with antioxidants and cytochrome P450, flavin monooxygenase and peroxidase inhibitors, while 3,5-DCPHA cytotoxicity was attenuated by two nucleophilic antioxidants (glutathione and N-acetyl-L-cysteine). Incubation of IKC with 3,5-DCA (0.5–1.0 mM, 90 min) produced only 3,5-DCAA and 3,5-DCNB as detectable metabolites. These data suggest that 3,5-DCNB and 3,5-DCPHA are potential nephrotoxic metabolites and may contribute to 3,5-DCA induced nephrotoxicity in vivo. In addition, the kidney can bioactivate 3,5-DCNB to toxic metabolites, and 3,5-DCPHA appears to generate reactive metabolites to contribute to 3,5-DCA nephrotoxicity. In vitro, N-oxidation of 3,5-DCA appears to be the primary mechanism of bioactivation of 3,5-DCA to nephrotoxic metabolites.
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Tailor A, Waddington JC, Hamlett J, Maggs J, Kafu L, Farrell J, Dear GJ, Whitaker P, Naisbitt DJ, Park K, Meng X. Definition of Haptens Derived from Sulfamethoxazole: In Vitro and in Vivo. Chem Res Toxicol 2019; 32:2095-2106. [DOI: 10.1021/acs.chemrestox.9b00282] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Arun Tailor
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - James C. Waddington
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - Jane Hamlett
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - James Maggs
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - Laila Kafu
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - John Farrell
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - Gordon J. Dear
- GlaxoSmithKline, Park Road, Ware, Hertfordshire SG12 0DP, U.K
| | - Paul Whitaker
- Regional Adult Cystic Fibrosis Unit, St. James’s University Hospital, Leeds LS9 7TF, U.K
| | - Dean J. Naisbitt
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - Kevin Park
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
| | - Xiaoli Meng
- MRC Centre for Drug Safety Science, Department of Molecular & Clinical Pharmacology, University of Liverpool, Liverpool L69 3GE, U.K
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Ogese MO, Faulkner L, Jenkins RE, French NS, Copple IM, Antoine DJ, Elmasry M, Malik H, Goldring CE, Park BK, Betts CJ, Naisbitt DJ. Characterization of Drug-Specific Signaling Between Primary Human Hepatocytes and Immune Cells. Toxicol Sci 2017; 158:76-89. [DOI: 10.1093/toxsci/kfx069] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Wong YY, Rakasz EG, Gasper DJ, Friedrich TC, Trepanier LA. Immunogenicity of trimethoprim/sulfamethoxazole in a macaque model of HIV infection. Toxicology 2016; 368-369:10-18. [PMID: 27565715 DOI: 10.1016/j.tox.2016.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 08/08/2016] [Accepted: 08/09/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND Sulfonamide hypersensitivity has a high incidence in HIV infection and correlates with low CD4+ counts, but the mechanisms are not understood. The aims of this study were to determine whether trimethoprim/sulfamethoxazole (TMP/SMX) led to SMX adduct formation, immunogenicity, or signs of drug hypersensitivity in SIV-infected rhesus macaques, and whether differences in antioxidants, pro-inflammatory mediators, or SMX disposition were predictive of drug immunogenicity. METHODS Nine macaques chronically infected with SIVmac239 and 7 non-infected controls were studied. Baseline blood ascorbate, glutathione, IFN-γ, LPS, sCD14, and cytochrome b5 reductase measurements were obtained, macaques were dosed with TMP/SMX (120mg/kg/day p.o. for 14days), and SMX metabolites, lymph node drug adducts, drug-responsive T cells, and anti-SMX antibodies were measured. RESULTS Four of 9 of SIV-positive (44%), and 3 of 7 SIV negative (43%) macaques had drug-responsive T cells or antibodies to SMX. Two macaques developed facial or truncal rash; these animals had the highest levels of lymph node drug adducts. Antioxidants, pro-inflammatory mediators, and SMX metabolites were not predictive of drug immunogenicity; however, the Mamu DRB1*0401/0406/0411 genotype was significantly over-represented in immune responders. CONCLUSIONS Unlike other animal models, macaques develop an immune response, and possible rash, in response to therapeutic dosages of TMP/SMX. Studying more animals with CD4+ counts <200cells/μl, along with moderately restricted ascorbate intake to match deficiencies seen in humans, may better model the risk of SMX hypersensitivity in HIV-infection. In addition, the role of Mamu-DRB1 genotype in modeling drug hypersensitivity in retroviral infection deserves further study.
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Affiliation(s)
- Yat Yee Wong
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Eva G Rakasz
- AIDS Vaccine Research Laboratory, Wisconsin National Primate Research Center, Madison, WI, USA
| | - David J Gasper
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA
| | - Thomas C Friedrich
- Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA; AIDS Vaccine Research Laboratory, Wisconsin National Primate Research Center, Madison, WI, USA
| | - Lauren A Trepanier
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI, USA.
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Goldman JL, Koen YM, Rogers SA, Li K, Leeder JS, Hanzlik RP. Bioactivation of Trimethoprim to Protein-Reactive Metabolites in Human Liver Microsomes. ACTA ACUST UNITED AC 2016; 44:1603-7. [PMID: 27457783 DOI: 10.1124/dmd.116.072041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 07/22/2016] [Indexed: 02/04/2023]
Abstract
The formation of drug-protein adducts via metabolic activation and covalent binding may stimulate an immune response or may result in direct cell toxicity. Protein covalent binding is a potentially pivotal step in the development of idiosyncratic adverse drug reactions (IADRs). Trimethoprim (TMP)-sulfamethoxazole (SMX) is a combination antibiotic that commonly causes IADRs. Recent data suggest that the contribution of the TMP component of TMP-SMX to IADRs may be underappreciated. We previously demonstrated that TMP is bioactivated to chemically reactive intermediates that can be trapped in vitro by N-acetyl cysteine (NAC), and we have detected TMP-NAC adducts (i.e., mercapturic acids) in the urine of patients taking TMP-SMX. However, the occurrence and extent of TMP covalent binding to proteins was unknown. To determine the ability of TMP to form protein adducts, we incubated [(14)C]TMP with human liver microsomes in the presence and absence of NADPH. We observed protein covalent binding that was NADPH dependent and increased with incubation time and concentration of both protein and TMP. The estimated covalent binding was 0.8 nmol Eq TMP/mg protein, which is comparable to the level of covalent binding for several other drugs that have been associated with covalent binding-induced toxicity and/or IADRs. NAC and selective inhibitors of CYP2B6 and CYP3A4 significantly reduced TMP covalent binding. These results demonstrate for the first time that TMP bioactivation can lead directly to protein adduct formation, suggesting that TMP has been overlooked as a potential contributor of TMP-SMX IADRs.
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Affiliation(s)
- Jennifer L Goldman
- Divisions of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Hospital, University of Missouri, Kansas City, Missouri (J.L.G., J.S.L.); Department of Medicinal Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas (Y.M.K., R.P.H.); Baker & McKenzie LLP, Dallas, Texas (S.A.R.); and Center for Integrative Chemical Biology and Drug Discovery, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina (K.L.)
| | - Yakov M Koen
- Divisions of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Hospital, University of Missouri, Kansas City, Missouri (J.L.G., J.S.L.); Department of Medicinal Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas (Y.M.K., R.P.H.); Baker & McKenzie LLP, Dallas, Texas (S.A.R.); and Center for Integrative Chemical Biology and Drug Discovery, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina (K.L.)
| | - Steven A Rogers
- Divisions of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Hospital, University of Missouri, Kansas City, Missouri (J.L.G., J.S.L.); Department of Medicinal Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas (Y.M.K., R.P.H.); Baker & McKenzie LLP, Dallas, Texas (S.A.R.); and Center for Integrative Chemical Biology and Drug Discovery, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina (K.L.)
| | - Kelin Li
- Divisions of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Hospital, University of Missouri, Kansas City, Missouri (J.L.G., J.S.L.); Department of Medicinal Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas (Y.M.K., R.P.H.); Baker & McKenzie LLP, Dallas, Texas (S.A.R.); and Center for Integrative Chemical Biology and Drug Discovery, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina (K.L.)
| | - James S Leeder
- Divisions of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Hospital, University of Missouri, Kansas City, Missouri (J.L.G., J.S.L.); Department of Medicinal Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas (Y.M.K., R.P.H.); Baker & McKenzie LLP, Dallas, Texas (S.A.R.); and Center for Integrative Chemical Biology and Drug Discovery, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina (K.L.)
| | - Robert P Hanzlik
- Divisions of Clinical Pharmacology, Toxicology, and Therapeutic Innovation, Children's Mercy Hospital, University of Missouri, Kansas City, Missouri (J.L.G., J.S.L.); Department of Medicinal Chemistry, University of Kansas School of Pharmacy, Lawrence, Kansas (Y.M.K., R.P.H.); Baker & McKenzie LLP, Dallas, Texas (S.A.R.); and Center for Integrative Chemical Biology and Drug Discovery, Eshelman School of Pharmacy, University of North Carolina, Chapel Hill, North Carolina (K.L.)
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Chong SY, Lee K, Chung HS, Hong SG, Suh Y, Chong Y. Levofloxacin Efflux and smeD in Clinical Isolates of Stenotrophomonas maltophilia. Microb Drug Resist 2016; 23:163-168. [PMID: 27294684 DOI: 10.1089/mdr.2015.0228] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Trimethoprim-sulfamethoxazole is the first-line antimicrobial combination for Stenotrophomonas maltophilia infections. However, allergy or intolerance and increasing resistance limit the use of trimethoprim-sulfamethoxazole. Quinolones can be used as an alternative therapeutic option, but resistance can emerge rapidly during therapy. We analyzed the contribution of SmeABC and SmeDEF efflux pumps to levofloxacin resistance in clinical isolates of S. maltophilia. Nonduplicate clinical isolates of S. maltophilia were collected in 2010 from 11 university hospitals (n = 102). Fifty-five levofloxacin nonsusceptible (minimum inhibitory concentration [MIC] ≥4 μg/ml) and 47 susceptible (MIC ≤2 μg/ml) isolates were tested for efflux pump overexpression. Real-time reverse transcription-PCR was performed for amplification and quantification of smeB, smeC, smeD, and smeF mRNA. To determine which antimicrobials were affected by smeD overexpression, the growth rates of a levofloxacin-susceptible S. maltophilia isolate were compared by measuring absorbance of antimicrobial-supplemented Luria-Bertani broth (LB) cultures with or without triclosan. Significant relationships between sme gene overexpression and resistance were observed for smeD against levofloxacin, smeC and smeF against ceftazidime, and smeC against ticarcillin-clavulanate. The mean MICs of moxifloxacin and tigecycline did not significantly differ for isolates with or without overexpression of smeB, smeC, and smeF, but were significantly higher for isolates with smeD overexpression. The mean MICs of amikacin were significantly higher for smeC or smeF overexpressing isolates. Increased growth of a levofloxacin-susceptible isolate was observed in LB with 1/2 MIC levofloxacin in the presence of triclosan. These data suggest that the expression of smeD plays a role in levofloxacin resistance in S. maltophilia.
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Affiliation(s)
- So Young Chong
- 1 Department of Internal Medicine, CHA Bundang Medical Center, CHA University , Seongnam, Korea
| | - Kyungwon Lee
- 2 Department of Laboratory Medicine, Yonsei University College of Medicine , Seoul, Korea.,3 Research Institute of Bacterial Resistance, Yonsei University College of Medicine , Seoul, Korea
| | - Hae-Sun Chung
- 3 Research Institute of Bacterial Resistance, Yonsei University College of Medicine , Seoul, Korea.,4 Department of Laboratory Medicine, Ewha Womans University School of Medicine , Seoul, Korea
| | - Seong Geun Hong
- 3 Research Institute of Bacterial Resistance, Yonsei University College of Medicine , Seoul, Korea.,5 Department of Laboratory Medicine, CHA Bundang Medical Center, CHA University , Seongnam, Korea
| | - Younghee Suh
- 3 Research Institute of Bacterial Resistance, Yonsei University College of Medicine , Seoul, Korea
| | - Yunsop Chong
- 2 Department of Laboratory Medicine, Yonsei University College of Medicine , Seoul, Korea.,3 Research Institute of Bacterial Resistance, Yonsei University College of Medicine , Seoul, Korea
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Ogese MO, Saide K, Faulkner L, Whitaker P, Peckham D, Alfirevic A, Baker DM, Sette A, Pirmohamed M, Park BK, Naisbitt DJ. HLA-DQ allele-restricted activation of nitroso sulfamethoxazole-specific CD4-positive T lymphocytes from patients with cystic fibrosis. Clin Exp Allergy 2015; 45:1305-16. [DOI: 10.1111/cea.12546] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Revised: 01/16/2015] [Accepted: 02/22/2015] [Indexed: 11/29/2022]
Affiliation(s)
- M. O. Ogese
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; University of Liverpool; Liverpool UK
| | - K. Saide
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; University of Liverpool; Liverpool UK
| | - L. Faulkner
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; University of Liverpool; Liverpool UK
| | - P. Whitaker
- Regional Adult Cystic Fibrosis Unit; St James's Hospital; Leeds UK
| | - D. Peckham
- Regional Adult Cystic Fibrosis Unit; St James's Hospital; Leeds UK
| | - A. Alfirevic
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; University of Liverpool; Liverpool UK
| | - D. M. Baker
- La Jolla Institute for Allergy and Immunology; La Jolla San Diego CA USA
| | - A. Sette
- La Jolla Institute for Allergy and Immunology; La Jolla San Diego CA USA
| | - M. Pirmohamed
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; University of Liverpool; Liverpool UK
| | - B. K. Park
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; University of Liverpool; Liverpool UK
| | - D. J. Naisbitt
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; University of Liverpool; Liverpool UK
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Whritenour J, Cole S, Zhu X, Li D, Kawabata TT. Development and partial validation of a mouse model for predicting drug hypersensitivity reactions. J Immunotoxicol 2013; 11:141-7. [DOI: 10.3109/1547691x.2013.812164] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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11
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You Q, Cheng L, Li D, Whritenour J, Kawabata TT, Ju C. Development of a screening assay to evaluate the potential of drugs to cause immune-mediated hypersensitivity reactions. J Immunotoxicol 2013; 11:110-5. [DOI: 10.3109/1547691x.2013.803269] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
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12
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Elzagallaai AA, Koren G, Rieder MJ. The Predictive Value of the In Vitro Platelet Toxicity Assay (iPTA) for the Diagnosis of Hypersensitivity Reactions to Sulfonamides. J Clin Pharmacol 2013; 53:626-32. [DOI: 10.1002/jcph.85] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Accepted: 03/19/2013] [Indexed: 12/31/2022]
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13
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Stachulski AV, Baillie TA, Kevin Park B, Scott Obach R, Dalvie DK, Williams DP, Srivastava A, Regan SL, Antoine DJ, Goldring CEP, Chia AJL, Kitteringham NR, Randle LE, Callan H, Castrejon JL, Farrell J, Naisbitt DJ, Lennard MS. The Generation, Detection, and Effects of Reactive Drug Metabolites. Med Res Rev 2012; 33:985-1080. [DOI: 10.1002/med.21273] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Andrew V. Stachulski
- Department of Chemistry, Robert Robinson Laboratories; University of Liverpool; Liverpool; L69 7ZD; UK
| | - Thomas A. Baillie
- School of Pharmacy; University of Washington; Box 357631; Seattle; Washington; 98195-7631
| | - B. Kevin Park
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - R. Scott Obach
- Pharmacokinetics, Dynamics and Metabolism; Pfizer Worldwide Research & Development; Groton; Connecticut 06340
| | - Deepak K. Dalvie
- Pharmacokinetics, Dynamics and Metabolism; Pfizer Worldwide Research & Development; La Jolla; California 94121
| | - Dominic P. Williams
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Abhishek Srivastava
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Sophie L. Regan
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Daniel J. Antoine
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Christopher E. P. Goldring
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Alvin J. L. Chia
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Neil R. Kitteringham
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Laura E. Randle
- School of Pharmacy and Biomolecular Sciences, Faculty of Science; Liverpool John Moores University; James Parsons Building, Byrom Street; Liverpool L3 3AF; UK
| | - Hayley Callan
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - J. Luis Castrejon
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - John Farrell
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Dean J. Naisbitt
- Department of Molecular and Clinical Pharmacology; MRC Centre for Drug Safety Science; Institute of Translational Medicine; University of Liverpool; Sherrington Buildings, Ashton Street; Liverpool L69 3GE; UK
| | - Martin S. Lennard
- Academic Unit of Medical Education; University of Sheffield; 85 Wilkinson Street; Sheffield S10 2GJ; UK
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Sebastian K, Ott H, Zwadlo-Klarwasser G, Skazik-Voogt C, Marquardt Y, Czaja K, Merk HF, Baron JM. Evaluation of the sensitizing potential of antibiotics in vitro using the human cell lines THP-1 and MUTZ-LC and primary monocyte‐derived dendritic cells. Toxicol Appl Pharmacol 2012; 262:283-92. [DOI: 10.1016/j.taap.2012.04.038] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2012] [Revised: 04/27/2012] [Accepted: 04/30/2012] [Indexed: 11/29/2022]
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Eyanagi R, Toda A, Imoto M, Uchiyama H, Ishii Y, Kuroki H, Kuramoto Y, Soeda S, Shimeno H. Covalent binding of nitroso-sulfonamides to glutathione S-transferase in guinea pigs with delayed type hypersensitivity. Int Immunopharmacol 2012; 12:694-700. [PMID: 22342371 DOI: 10.1016/j.intimp.2012.01.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 01/20/2012] [Accepted: 01/31/2012] [Indexed: 01/22/2023]
Abstract
Drug induced allergies are believed to be induced by conjugates consisting of biological macromolecules and active metabolites. The present study investigated whether guinea pig glutathione S-transferase (gpGST), a protein that binds with sulfanilamide (SA) and sulfamethoxazole (SMX), could be detected in the liver cytosol fraction of guinea pigs that intraperitoneally received SA or SMX, and whether gpGST is a carrier protein. We synthesized three nitroso compounds, i.e., 4-nitroso-sulfanilamide (SA-NO), 4-nitrososulfamethoxazole (SMX-NO) and fluorescent-labeled nitroso compound (DNSBA-NO), and examined binding quantities of nitroso compounds to gpGST purified from untreated female guinea pigs. Furthermore, the concentrations of IgG in serum antibody for nitroso compounds were estimated using ELISA. When guinea pigs were sensitized using the three nitroso compounds, the dose dependent skin reactions were confirmed with each compound. In addition, sensitized guinea pigs using each nitroso compound showed positive skin reactions at an elicitation test performed using gpGST alone. The results confirmed synthesis of antibody against gpGST due to hapten sensitization. Therefore, when a nitroso compound binds with gpGST in the body of guinea pigs, nitroso-gpGST acts as a neoantigen, which induces synthesis of autoantibody. Thus, gpGST appears to be one of the carrier proteins that induce sulfa drug-induced allergies. Immunization of guinea pigs with active metabolite of drugs may give information for predicting the occurrence of delayed type hypersensitivity in human.
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Affiliation(s)
- Reiko Eyanagi
- Daiichi College of Pharmaceutical Sciences, 22-1 Tamagawa-cho, minami-ku, Fukuoka 815-8511, Japan.
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16
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Castrejon JL, Berry N, El-Ghaiesh S, Gerber B, Pichler WJ, Park BK, Naisbitt DJ. Stimulation of human T cells with sulfonamides and sulfonamide metabolites. J Allergy Clin Immunol 2010; 125:411-418.e4. [PMID: 20159253 DOI: 10.1016/j.jaci.2009.10.031] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Revised: 10/16/2009] [Accepted: 10/19/2009] [Indexed: 10/19/2022]
Abstract
BACKGROUND Exposure to sulfonamides is associated with a high incidence of hypersensitivity reactions. Antigen-specific T cells are involved in the pathogenesis; however, the nature of the antigen interacting with specific T-cell receptors is not fully defined. OBJECTIVE We sought to explore the frequency of sulfamethoxazole (SMX)- and SMX metabolite-specific T cells in hypersensitive patients, delineate the specificity of clones, define mechanisms of presentation, and explore additional reactivity with structurally related sulfonamide metabolites. METHODS SMX- and SMX metabolite-specific T-cell clones were generated from 3 patients. Antigen specificity, mechanisms of antigen presentation, and cross-reactivity of specific clones were then explored. Low-lying energy conformations of drugs (metabolites) were modeled, and the energies available for protein binding was estimated. RESULTS Lymphocytes proliferated with parent drugs (SMX, sulfadiazine, and sulfapyridine) and both hydroxylamine and nitroso metabolites. Three patterns of drug (metabolite) stimulation were seen: 44% were SMX metabolite specific, 43% were stimulated with SMX metabolites and SMX, and 14% were stimulated with SMX alone. Most metabolite-responsive T cells were stimulated with nitroso SMX-modified protein through a hapten mechanism involving processing. In contrast to SMX-responsive clones, which were highly specific, greater than 50% of nitroso SMX-specific clones were stimulated with nitroso metabolites of sulfapyridine and sulfadiazine but not nitrosobenzene. Pharmacophore modeling showed that the summation of available binding energies for protein interactions and the preferred spatial arrangement of atoms in each molecule determine a drug's potential to stimulate specific T cells. CONCLUSIONS Nitroso sulfonamide metabolites form potent antigenic determinants for T cells from hypersensitive patients. T-cell responses against drugs (metabolites) bound directly to MHC or MHC/peptide complexes can occur through cross-reactivity with the haptenic immunogen.
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Affiliation(s)
- J Luis Castrejon
- MRC Centre for Drug Safety Science, Department of Pharmacology, University of Liverpool, Liverpool L69 3GE, United Kingdom
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Bhusari S, Abouraya M, Padilla ML, Pinkerton ME, Drescher NJ, Sacco JC, Trepanier LA. Combined ascorbate and glutathione deficiency leads to decreased cytochrome b5 expression and impaired reduction of sulfamethoxazole hydroxylamine. Arch Toxicol 2010; 84:597-607. [PMID: 20221587 DOI: 10.1007/s00204-010-0530-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Accepted: 02/22/2010] [Indexed: 10/19/2022]
Abstract
Sulfonamide antimicrobials such as sulfamethoxazole (SMX) have been associated with drug hypersensitivity reactions, particularly in patients with AIDS. A reactive oxidative metabolite, sulfamethoxazole-nitroso (SMX-NO), forms drug-tissue adducts that elicit a T-cell response. Antioxidants such as ascorbic acid (AA) and glutathione (GSH) reduce SMX-NO to the less reactive hydroxylamine metabolite (SMX-HA), which is further reduced to the non-immunogenic parent compound by cytochrome b (5) (b5) and its reductase (b5R). We hypothesized that deficiencies in AA and GSH would enhance drug-tissue adduct formation and immunogenicity toward SMX-NO and that these antioxidant deficiencies might also impair the activity of the b5/b5R pathway. We tested these hypotheses in guinea pigs fed either a normal or AA-restricted diet, followed by buthionine sulfoximine treatment (250 mg/kg SC daily, or vehicle); and SMX-NO (1 mg/kg IP 4 days per week, or vehicle), for 2 weeks. Guinea pigs did not show any biochemical or histopathologic evidence of SMX-NO-related toxicity. Combined AA and GSH deficiency in this model did not significantly increase tissue-drug adduct formation, or splenocyte proliferation in response to SMX-NO. However, combined antioxidant deficiency was associated with decreased mRNA and protein expression of cytochrome b (5), as well as significant decreases in SMX-HA reduction in SMX-NO-treated pigs. These results suggest that SMX-HA detoxification may be down-regulated in combined AA and GSH deficiency. This mechanism could contribute to the higher risk of SMX hypersensitivity in patients with AIDS with antioxidant depletion.
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Affiliation(s)
- Sachin Bhusari
- Department of Medical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, 2015 Linden Drive, Madison, WI 53706-1102, USA
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18
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Cytochrome b5 and NADH cytochrome b5 reductase: genotype-phenotype correlations for hydroxylamine reduction. Pharmacogenet Genomics 2010; 20:26-37. [PMID: 19997042 DOI: 10.1097/fpc.0b013e3283343296] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVES NADH cytochrome b5 reductase (b5R) and cytochrome b5 (b5) catalyze the reduction of sulfamethoxazole hydroxylamine (SMX-HA), which can contribute to sulfonamide hypersensitivity, to the parent drug sulfamethoxazole. Variability in hydroxylamine reduction could thus play a role in adverse drug reactions. The aim of this study was to characterize variability in SMX-HA reduction in 111 human livers, and investigate its association with single nucleotide polymorphisms (SNPs) in b5 and b5R cDNA. METHODS Liver microsomes were assayed for SMX-HA reduction activity, and b5 and b5R expression was semiquantified by immunoblotting. The coding regions of the b5 (CYB5A) and b5R (CYB5R3) genes were resequenced. RESULTS Hepatic SMX-HA reduction displayed a 19-fold range of individual variability (0.06-1.11 nmol/min/mg protein), and a 17-fold range in efficiency (Vmax/Km) among outliers. SMX-HA reduction was positively correlated with b5 and b5R protein content (P<0.0001, r=0.42; P=0.01, r=0.23, respectively), and expression of both proteins correlated with one another (P<0.0001; r=0.74). A novel cSNP in CYB5A (S5A) was associated with very low activity and protein expression. Two novel CYB5R3 SNPs, R59H and R297H, displayed atypical SMX-HA reduction kinetics and decreased SMX-HA reduction efficiency. CONCLUSION These studies indicate that although novel cSNPs in CYB5A and CYB5R3 are associated with significantly altered protein expression and/or hydroxylamine reduction activities, these low-frequency cSNPs seem to only minimally impact overall observed phenotypic variability. Work is underway to characterize polymorphisms in other regions of these genes to further account for individual variability in hydroxylamine reduction.
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19
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You Q, Cheng L, Ju C. Generation of T cell responses targeting the reactive metabolite of halothane in mice. Toxicol Lett 2010; 194:79-85. [PMID: 20156533 DOI: 10.1016/j.toxlet.2010.02.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2010] [Revised: 02/04/2010] [Accepted: 02/05/2010] [Indexed: 01/05/2023]
Abstract
Immune-mediated adverse drug reactions (IADRs) represent a significant problem in clinical practice and drug development. Studies of the underlying mechanisms of IADRs have been hampered by the lack of animal models. Halothane causes severe allergic hepatitis with clinical features consistent with an IADR. Our ultimate goal is to develop a mouse model of halothane hepatitis. Evidence suggests that adaptive immune responses targeting liver protein adducts of the reactive metabolite (trifluoroacetyl (TFA)) play an important role in the pathogenesis. The present study demonstrated that the combination of an anti-CD40 antibody (Ab) and a Toll-like receptor (TLR) agonist served as a potent adjuvant in generating TFA-specific T cell responses in mice. Both CD4(+) and CD8(+) subsets of T cells were activated and the TFA-specific responses were detected not only in the spleen but also in the liver of mice immunized with mouse serum albumin adducts of TFA (TFA-MSA) plus the combined CD40/TLR agonist. Whereas all three TLR agonists examined were effective in eliciting TFA-specific immune responses in BALB/cByJ mice, only polyI:C was effective in DBA/1 mice and none of the TLR agonists could aid the generation of TFA-specific T cells in C57BL/6J mice. This result, combined with our previous finding that BALB/cByJ mice were the most susceptible to halothane-induced acute liver injury, provides the basis for employing this strain in future studies. Collectively, our data demonstrated the successful completion of a crucial first step in the development of a murine model of halothane hepatitis.
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Affiliation(s)
- Qiang You
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Colorado Denver, Aurora, CO 80045, United States.
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20
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Abstract
Chemical reactions that enable selective biomolecule labeling in living organisms offer a means to probe biological processes in vivo. Very few reactions possess the requisite bioorthogonality, and, among these, only the Staudinger ligation between azides and triarylphosphines has been employed for direct covalent modification of biomolecules with probes in the mouse, an important model organism for studies of human disease. Here we explore an alternative bioorthogonal reaction, the 1,3-dipolar cycloaddition of azides and cyclooctynes, also known as "Cu-free click chemistry," for labeling biomolecules in live mice. Mice were administered peracetylated N-azidoacetylmannosamine (Ac(4)ManNAz) to metabolically label cell-surface sialic acids with azides. After subsequent injection with cyclooctyne reagents, glycoconjugate labeling was observed on isolated splenocytes and in a variety of tissues including the intestines, heart, and liver, with no apparent toxicity. The cyclooctynes tested displayed various labeling efficiencies that likely reflect the combined influence of intrinsic reactivity and bioavailability. These studies establish Cu-free click chemistry as a bioorthogonal reaction that can be executed in the physiologically relevant context of a mouse.
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Castrejon JL, Lavergne SN, El-Sheikh A, Farrell J, Maggs JL, Sabbani S, O’Neill PM, Park BK, Naisbitt DJ. Metabolic and Chemical Origins of Cross-Reactive Immunological Reactions to Arylamine Benzenesulfonamides: T-Cell Responses to Hydroxylamine and Nitroso Derivatives. Chem Res Toxicol 2009; 23:184-92. [DOI: 10.1021/tx900329b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- J. Luis Castrejon
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Sidonie N. Lavergne
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Ayman El-Sheikh
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - John Farrell
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - James L. Maggs
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Sunil Sabbani
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Paul M. O’Neill
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - B. Kevin Park
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Dean J. Naisbitt
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom, and Department of Chemistry, The University of Liverpool, Liverpool L69 7ZD, United Kingdom
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Lavergne SN, Wang H, Callan HE, Park BK, Naisbitt DJ. "Danger" conditions increase sulfamethoxazole-protein adduct formation in human antigen-presenting cells. J Pharmacol Exp Ther 2009; 331:372-81. [PMID: 19666748 DOI: 10.1124/jpet.109.155374] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Antigen-presenting cells (APC) are thought to play an important role in the pathogenesis of drug-induced immune reactions. Various pathological factors can activate APC and therefore influence the immune equilibrium. It is interesting that several diseases have been associated with an increased rate of drug allergy. The aim of this project was to evaluate the impact of such "danger signals" on sulfamethoxazole (SMX) metabolism in human APC (peripheral blood mononuclear cells, Epstein-Barr virus-modified B lymphocytes, monocyte-derived dendritic cells, and two cell lines). APC were incubated with SMX (100 microM-2 mM; 5 min-24 h), in the presence of pathological factors: bacterial endotoxins (lipopolysaccharide and staphylococcal enterotoxin B), flu viral proteins, cytokines [interleukin (IL)-1beta, IL-6, IL-10; tumor necrosis factor-alpha; interferon-gamma; and transforming growth factor-beta], inflammatory molecules (prostaglandin E2, human serum complement, and activated protein C), oxidants (buthionine sulfoximine and H(2)O(2)), and hyperthermia (37.5-39.5 degrees C). Adduct formation was evaluated by enzyme-linked immunosorbent assay and confocal microscopy. SMX-protein adduct formation was time- and concentration-dependent for each cell type tested, in both physiological and danger conditions. A danger environment significantly increased the formation of SMX-protein adducts and significantly shortened the delay for their detection. An additive effect was observed with a combination of danger signals. Dimedone (chemical selectively binding cysteine sulfenic acid) and antioxidants decreased both baseline and danger-enhanced SMX-adduct formation. Various enzyme inhibitors were associated with a significant decrease in SMX-adduct levels, with a pattern varying depending on the cell type and the culture conditions. These results illustrate that danger signals enhance the formation of intracellular SMX-protein adducts in human APC. These findings might be relevant to the increased frequency of drug allergy in certain disease states.
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Affiliation(s)
- S N Lavergne
- Department of Pharmacology, Centre for Drug Safety Science, The University of Liverpool, Liverpool, UK
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23
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Callan HE, Jenkins RE, Maggs JL, Lavergne SN, Clarke SE, Naisbitt DJ, Park BK. Multiple adduction reactions of nitroso sulfamethoxazole with cysteinyl residues of peptides and proteins: implications for hapten formation. Chem Res Toxicol 2009; 22:937-48. [PMID: 19358516 DOI: 10.1021/tx900034r] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Sulfamethoxazole (SMX) induces immunoallergic reactions that are thought to be a result of intracellular protein haptenation by its nitroso metabolite (SMX-NO mass, 267 amu). SMX-NO reacts with protein thiols in vitro, but the conjugates have not been defined chemically. The reactions of SMX-NO with glutathione (GSH), a synthetic peptide (DS3), and two model proteins, human GSH S-transferase pi (GSTP) and serum albumin (HSA), were investigated by mass spectrometry. SMX-NO formed a semimercaptal (N-hydroxysulfenamide) conjugate with GSH that rearranged rapidly (1-5 min) to a sulfinamide. Reaction of SMX-NO with DS3 also yielded a sulfinamide adduct (mass increment, 267 amu) on the cysteine residue. GSTP was exclusively modified at the reactive Cys47 by SMX-NO and exhibited mass increments of 267, 283, and 299 amu, indicative of sulfinamide, N-hydroxysulfinamide, and N-hydroxysulfonamide adducts, respectively. HSA was modified at Cys34, forming only the N-hydroxysulfinamide adduct. HSA modification by SMX-NO under these conditions was confirmed with ELISA and immunoblotting with an antisulfonamide antibody. It is proposed that cysteine-linked N-hydroxysulfinamide and N-hydroxysulfonamide adducts of SMX are formed via the reaction of SMX-NO with cysteinyl sulfoxy acids. Evidence for a multistep assembly of model sulfonamide epitopes on GSH and polypeptides via hydrolyzable intermediates is also presented. In summary, novel, complex, and metastable haptenic structures have been identified on proteins exposed in vitro to the nitroso metabolite of SMX.
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Affiliation(s)
- Hayley E Callan
- MRC Centre for Drug Safety Science, Department of Pharmacology and Therapeutics, School of Biomedical Sciences, The University of Liverpool, Liverpool L69 3GE, United Kingdom
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Role of protein haptenation in triggering maturation events in the dendritic cell surrogate cell line THP-1. Toxicol Appl Pharmacol 2009; 238:120-32. [DOI: 10.1016/j.taap.2009.05.001] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2009] [Revised: 04/30/2009] [Accepted: 05/02/2009] [Indexed: 12/30/2022]
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Looney WJ, Narita M, Mühlemann K. Stenotrophomonas maltophilia: an emerging opportunist human pathogen. THE LANCET. INFECTIOUS DISEASES 2009; 9:312-23. [PMID: 19393961 DOI: 10.1016/s1473-3099(09)70083-0] [Citation(s) in RCA: 346] [Impact Index Per Article: 23.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Stenotrophomonas maltophilia has emerged as an important opportunistic pathogen in the debilitated host. S maltophilia is not an inherently virulent pathogen, but its ability to colonise respiratory-tract epithelial cells and surfaces of medical devices makes it a ready coloniser of hospitalised patients. S maltophilia can cause blood-stream infections and pneumonia with considerable morbidity in immunosuppressed patients. Management of infection is hampered by high-level intrinsic resistance to many antibiotic classes and the increasing occurrence of acquired resistance to the first-line drug co-trimoxazole. Prevention of acquisition and infection depends upon the application of modern infection-control practices, with emphasis on the control of antibiotic use and environmental reservoirs.
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Affiliation(s)
- W John Looney
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
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The roles of drug metabolism in the pathogenesis of T-cell-mediated drug hypersensitivity. Curr Opin Allergy Clin Immunol 2008; 8:299-307. [DOI: 10.1097/aci.0b013e3283079c64] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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27
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Current World Literature. Curr Opin Allergy Clin Immunol 2008; 8:360-3. [DOI: 10.1097/aci.0b013e32830abac8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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28
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Falagas ME, Valkimadi PE, Huang YT, Matthaiou DK, Hsueh PR. Therapeutic options for Stenotrophomonas maltophilia infections beyond co-trimoxazole: a systematic review. J Antimicrob Chemother 2008; 62:889-94. [PMID: 18662945 DOI: 10.1093/jac/dkn301] [Citation(s) in RCA: 122] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Stenotrophomonas maltophilia has emerged as an important opportunistic pathogen, causing infections whose management is often problematic due to its inherent resistance to many antibiotics, making co-trimoxazole the main therapeutic option. However, there are cases in which either due to antimicrobial resistance or allergic reactions and intolerance to co-trimoxazole this antibiotic cannot be administered. We sought to evaluate the available clinical evidence regarding potentially effective alternative antibiotics for the treatment of S. maltophilia infections. METHODS The literature search was performed in the PubMed and Scopus databases. The search string used was 'Stenotrophomonas maltophilia OR Xanthomonas maltophilia'. RESULTS Thirty-one case reports and 5 case series were retrieved including a total of 49 patients with a variety of infections. Twenty of 49 cases (40.8%) were treated with ciprofloxacin as monotherapy or in combination with other antibiotics; 12 of 49 cases (24.5%) were treated with ceftriaxone- or ceftazidime-based regimens; and 6 of 49 cases (12.2%) were treated with ticarcillin- or ticarcillin/clavulanate-based regimens. The cure or improvement rates were 18 cases (90%), 8 (75%) and 4 (66.7%), respectively. The remaining 11 patients received various antimicrobials including aminoglycoside-based regimens, carbapenems, levofloxacin, chloramphenicol, aztreonam, minocycline and other beta-lactams. CONCLUSIONS The limited available data suggest that ciprofloxacin, ceftazidime or ceftriaxone, and ticarcillin/clavulanate, alone or in combination with other antibiotics, may be considered as alternative options beyond co-trimoxazole.
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