1
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Becker HEF, Demers K, Derijks LJJ, Jonkers DMAE, Penders J. Current evidence and clinical relevance of drug-microbiota interactions in inflammatory bowel disease. Front Microbiol 2023; 14:1107976. [PMID: 36910207 PMCID: PMC9996055 DOI: 10.3389/fmicb.2023.1107976] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/06/2023] [Indexed: 02/25/2023] Open
Abstract
Background Inflammatory bowel disease (IBD) is a chronic relapsing-remitting disease. An adverse immune reaction toward the intestinal microbiota is involved in the pathophysiology and microbial perturbations are associated with IBD in general and with flares specifically. Although medical drugs are the cornerstone of current treatment, responses vary widely between patients and drugs. The intestinal microbiota can metabolize medical drugs, which may influence IBD drug (non-)response and side effects. Conversely, several drugs can impact the intestinal microbiota and thereby host effects. This review provides a comprehensive overview of current evidence on bidirectional interactions between the microbiota and relevant IBD drugs (pharmacomicrobiomics). Methods Electronic literature searches were conducted in PubMed, Web of Science and Cochrane databases to identify relevant publications. Studies reporting on microbiota composition and/or drug metabolism were included. Results The intestinal microbiota can both enzymatically activate IBD pro-drugs (e.g., in case of thiopurines), but also inactivate certain drugs (e.g., mesalazine by acetylation via N-acetyltransferase 1 and infliximab via IgG-degrading enzymes). Aminosalicylates, corticosteroids, thiopurines, calcineurin inhibitors, anti-tumor necrosis factor biologicals and tofacitinib were all reported to alter the intestinal microbiota composition, including changes in microbial diversity and/or relative abundances of various microbial taxa. Conclusion Various lines of evidence have shown the ability of the intestinal microbiota to interfere with IBD drugs and vice versa. These interactions can influence treatment response, but well-designed clinical studies and combined in vivo and ex vivo models are needed to achieve consistent findings and evaluate clinical relevance.
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Affiliation(s)
- Heike E F Becker
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, Netherlands.,Department of Medical Microbiology, Infectious Diseases and Infection Prevention, NUTRIM School of Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Karlijn Demers
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Luc J J Derijks
- Department of Clinical Pharmacy and Pharmacology, Máxima Medical Center, Veldhoven, Netherlands.,Department of Clinical Pharmacy and Toxicology, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - Daisy M A E Jonkers
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, Netherlands
| | - John Penders
- Department of Medical Microbiology, Infectious Diseases and Infection Prevention, NUTRIM School of Translational Research in Metabolism, Maastricht University Medical Centre+, Maastricht, Netherlands.,Department of Medical Microbiology, Infectious Diseases and Infection Prevention, CAPHRI School of Public Health and Primary Care, Maastricht University Medical Centre+, Maastricht, Netherlands
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2
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Mallick B, Malik S. Use of Azathioprine in Ulcerative Colitis: A Comprehensive Review. Cureus 2022; 14:e24874. [PMID: 35698683 PMCID: PMC9184176 DOI: 10.7759/cureus.24874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/09/2022] [Indexed: 01/10/2023] Open
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3
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Martín-Masot R, Ortiz Pérez MP, Ramos Rueda N, Serrano Nieto J, Blasco-Alonso J, Navas-López VM. Análisis de la determinación de niveles de tiopurínicos en pacientes pediátricos con enfermedad inflamatoria intestinal. An Pediatr (Barc) 2020; 93:34-40. [DOI: 10.1016/j.anpedi.2019.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/04/2019] [Accepted: 10/11/2019] [Indexed: 02/07/2023] Open
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4
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Martín-Masot R, Ortiz Pérez MP, Ramos Rueda N, Serrano Nieto J, Blasco-Alonso J, Navas-López VM. Laboratory determination of thiopurine levels in paediatric patients with inflammatory bowel disease. ANALES DE PEDIATRÍA (ENGLISH EDITION) 2020. [DOI: 10.1016/j.anpede.2019.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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5
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Zainul-Abidin S, Amanatullah DF, Anderson MB, Austin M, Barretto JM, Battenberg A, Bedard NA, Bell K, Blevins K, Callaghan JJ, Cao L, Certain L, Chang Y, Chen JP, Cizmic Z, Coward J, DeMik DE, Diaz-Borjon E, Enayatollahi MA, Feng JE, Fernando N, Gililland JM, Goodman S, Goodman S, Greenky M, Hwang K, Iorio R, Karas V, Khan R, Kheir M, Klement MR, Kunutsor SK, Limas R, Morales Maldonado RA, Manrique J, Matar WY, Mokete L, Nung N, Pelt CE, Pietrzak JRT, Premkumar A, Rondon A, Sanchez M, Novaes de Santana C, Sheth N, Singh J, Springer BD, Tay KS, Varin D, Wellman S, Wu L, Xu C, Yates AJ. General Assembly, Prevention, Host Related General: Proceedings of International Consensus on Orthopedic Infections. J Arthroplasty 2019; 34:S13-S35. [PMID: 30360983 DOI: 10.1016/j.arth.2018.09.050] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
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6
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Walczak M, Skrzypczak-Zielinska M, Plucinska M, Zakerska-Banaszak O, Marszalek D, Lykowska-Szuber L, Stawczyk-Eder K, Dobrowolska A, Slomski R. Long-range PCR libraries and next-generation sequencing for pharmacogenetic studies of patients treated with anti-TNF drugs. THE PHARMACOGENOMICS JOURNAL 2018; 19:358-367. [PMID: 30293984 DOI: 10.1038/s41397-018-0058-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2018] [Revised: 08/06/2018] [Accepted: 08/14/2018] [Indexed: 12/30/2022]
Abstract
Biological therapy with anti-tumor necrosis factor-α (anti-TNF-α) monoclonal antibodies significantly increased the effectiveness of autoimmune disease treatment compared with conventional medicines. However, anti-TNF-α drugs are relatively expensive and a response to the therapy is reported in only 60-70% of patients. Moreover, in up to 5% of patients adverse drug reactions occur. The various effects of biological treatment may be a potential consequence of interindividual genetic variability. Only a few studies have been conducted in this field and which refer to single gene loci. Our aim was to design and optimize a methodology for a broader application of pharmacogenetic studies in patients undergoing anti-TNF-α treatment. Based on the current knowledge, we selected 16 candidate genes: TNFRSF1A, TNFRSF1B, ADAM17, CASP9, FCGR3A, LTA, TNF, FAS, IL1B, IL17A, IL6, MMP1, MMP3, S100A8, S100A9, and S100A12, which are potentially involved in the response to anti-TNF-α therapy. As a research model, three DNA samples from Crohn's disease (CD) patients were used. Targeted genomic regions were amplified in 23 long-range (LR) PCR reactions and after enzymatic fragmentation amplicon libraries were prepared and analyzed by next-generation sequencing (NGS). Our results indicated 592 sequence variations located in all fragments with coverage range of 5-1089. We demonstrate a highly sensitive, flexible, rapid, and economical approach to the pharmacogenetic investigation of anti-TNF-α therapy using amplicon libraries and NGS technology.
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Affiliation(s)
- Michal Walczak
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | | | - Marianna Plucinska
- Department of Computational Biology, Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, Umultowska 89, 61-614, Poznan, Poland
| | - Oliwia Zakerska-Banaszak
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | - Daria Marszalek
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland
| | - Liliana Lykowska-Szuber
- Department of Gastroenterology, Dietetics and Internal Diseases, University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznan, Poland
| | - Kamila Stawczyk-Eder
- Department of Gastroenterology, Dietetics and Internal Diseases, University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznan, Poland
| | - Agnieszka Dobrowolska
- Department of Gastroenterology, Dietetics and Internal Diseases, University of Medical Sciences, Przybyszewskiego 49, 60-355, Poznan, Poland
| | - Ryszard Slomski
- Institute of Human Genetics, Polish Academy of Sciences, Strzeszynska 32, 60-479, Poznan, Poland.,Department of Biochemistry and Biotechnology, University of Life Sciences, Dojazd 11, 60-632, Poznan, Poland
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7
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Peiravan A, Bertolini F, Rothschild MF, Simpson KW, Jergens AE, Allenspach K, Werling D. Genome-wide association studies of inflammatory bowel disease in German shepherd dogs. PLoS One 2018; 13:e0200685. [PMID: 30028859 PMCID: PMC6054420 DOI: 10.1371/journal.pone.0200685] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 05/14/2018] [Indexed: 12/12/2022] Open
Abstract
Canine Inflammatory Bowel Disease (IBD) is considered a multifactorial disease caused by complex interactions between the intestinal immune system, intestinal microbiota and environmental factors in genetically susceptible individuals. Although IBD can affect any breed, German shepherd dogs (GSD) in the UK are at increased risk of developing the disease. Based on previous evidence, the aim of the present study was to identify single nucleotide polymorphisms (SNPs), which may confer genetic susceptibility or resistance to IBD using a genome-wide association study (GWAS). Genomic DNA was extracted from EDTA blood or saliva samples of 96 cases and 98 controls. Genotyping of cases and controls was performed on the Canine Illumina HD SNP array and data generated was analyzed using PLINK. Several SNPs and regions on chromosomes 7,9,11 and 13 were detected to be associated with IBD using different SNP-by-SNP association methods and FST windows approach. Searching one Mb up-and down-stream of the most significant SNPs, as identified by single SNP analysis as well as 200Kb before and after the start and the end position of the associated regions identified by FST windows approach, we identified 63 genes. Using a combination of pathways analysis and a list of genes that have been reported to be involved in human IBD, we identified 16 candidate genes potentially associated with IBD in GSD.
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Affiliation(s)
- Atiyeh Peiravan
- Department of Pathology and Pathogen Biology, Royal Veterinary College, University of London, North Mymms, United Kingdom
| | - Francesca Bertolini
- Department of Animal Science, Iowa State University, Ames, Iowa, United States of America
| | - Max F. Rothschild
- Department of Animal Science, Iowa State University, Ames, Iowa, United States of America
| | - Kenneth W. Simpson
- College of Veterinary Medicine, Cornell University, Ithaca, NY, United States of America
| | - Albert E. Jergens
- College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Karin Allenspach
- College of Veterinary Medicine, Iowa State University, Ames, Iowa, United States of America
| | - Dirk Werling
- Department of Pathology and Pathogen Biology, Royal Veterinary College, University of London, North Mymms, United Kingdom
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8
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Hessels AC, Rutgers A, Sanders JSF, Stegeman CA. Thiopurine methyltransferase genotype and activity cannot predict outcomes of azathioprine maintenance therapy for antineutrophil cytoplasmic antibody associated vasculitis: A retrospective cohort study. PLoS One 2018; 13:e0195524. [PMID: 29630648 PMCID: PMC5890988 DOI: 10.1371/journal.pone.0195524] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Accepted: 03/23/2018] [Indexed: 11/25/2022] Open
Abstract
Objective Azathioprine is a widely used immunosuppressive drug. Genetic polymorphisms and activity of the enzyme thiopurine methyltransferase (TPMT) have been associated with azathioprine efficacy and toxicity in several populations. We investigated whether these associations also exist for ANCA associated vasculitis (AAV) patients, who receive azathioprine maintenance therapy after remission induction with cyclophosphamide. Methods 207 AAV patients treated with cyclophosphamide induction and azathioprine maintenance therapy were included and followed for 60 months. TPMT genotype and tertiles of TPMT activity were compared to relapse free survival and occurrence of adverse events, particularly leukopenia. Multivariable regression was performed to account for confounders. Results In univariable analysis, relapse free survival was not significantly associated with TPMT genotype (P = 0.41) or TPMT activity (P = 0.07), although it tended to be longer in lower tertiles of TPMT activity. There was no significant association of TPMT genotype and activity with occurrence of any adverse event. In multiple regression, leukocyte counts at the end of cyclophosphamide induction were related to risk of leukopenia during azathioprine therapy [P<0.001; OR 0.54 (95% CI 0.43–0.68)] and risk of relapse during follow-up [P = 0.001; HR 1.17 (95% CI 1.07–1.29)] irrespective of TMPT genotype or activity. Conclusion TPMT genotype and activity were not independent predictors of relapse, and could not predict leukopenia or other adverse effects from azathioprine. Leukocyte counts after cyclophosphamide induction were related to both outcomes, implying a greater influence of cyclophosphamide response compared to azathioprine and TPMT in AAV patients.
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Affiliation(s)
- Arno C. Hessels
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
- * E-mail:
| | - Abraham Rutgers
- Department of Rheumatology and Clinical Immunology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Jan Stephan F. Sanders
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Coen A. Stegeman
- Department of Internal Medicine, Division of Nephrology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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9
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Sato T, Takagawa T, Kakuta Y, Nishio A, Kawai M, Kamikozuru K, Yokoyama Y, Kita Y, Miyazaki T, Iimuro M, Hida N, Hori K, Ikeuchi H, Nakamura S. NUDT15, FTO, and RUNX1 genetic variants and thiopurine intolerance among Japanese patients with inflammatory bowel diseases. Intest Res 2017; 15:328-337. [PMID: 28670229 PMCID: PMC5478757 DOI: 10.5217/ir.2017.15.3.328] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 02/15/2017] [Accepted: 02/24/2017] [Indexed: 11/26/2022] Open
Abstract
Background/Aims Recent genome-wide analyses have provided strong evidence concerning adverse events caused by thiopurine drugs such as azathioprine (AZA) and 6-mercaptopurine. The strong associations identified between NUDT15 p.Arg139Cys and thiopurine-induced leukopenia and severe hair loss have been studied and confirmed over the last 2 years. However, other coding variants, including NUDT15 p.Val18_Val19insGlyVal, NUDT15 p.Val18Ile, and FTO p.Ala134Thr, and a noncoding variation in RUNX1 (rs2834826) remain to be examined in detail in this respect. Therefore, we investigated the correlation between these adverse events and the 5 recently identified variants mentioned above among Japanese patients with inflammatory bowel diseases (IBD). Methods One hundred sixty thiopurine-treated patients with IBD were enrolled. Genotyping was performed using TaqMan SNP Genotyping Assays or Sanger sequencing. Results None of the 5 variants were associated with gastrointestinal intolerance to AZA. However, NUDT15 p.Arg139Cys was significantly associated with the interval between initiation and discontinuation of AZA among patients with gastrointestinal intolerance. This variant was strongly associated with early (<8 weeks) and late (≥8 weeks) leukopenia and severe hair loss. Moreover, it correlated with the interval between initiation of thiopurine therapy and leukopenia occurrence, and average thiopurine dose. NUDT15 p.Val18_Val19insGlyVal, NUDT15 p.Val18Ile, FTO p.Ala134Thr, and RUNX1 rs2834826 exhibited no significant relationship with the adverse events examined. Conclusions Of the 5 variants investigated, NUDT15 p.Arg139Cys had the strongest impact on thiopurine-induced leukopenia and severe hair loss; therefore, its genotyping should be prioritized over that of other variants in efforts to predict these adverse events in Japanese patients with IBD.
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Affiliation(s)
- Toshiyuki Sato
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Tetsuya Takagawa
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan.,Department of Intestinal Inflammation Research, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yoichi Kakuta
- Division of Gastroenterology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Akihiro Nishio
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Mikio Kawai
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Koji Kamikozuru
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yoko Yokoyama
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Yuko Kita
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Takako Miyazaki
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Masaki Iimuro
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Nobuyuki Hida
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan
| | - Kazutoshi Hori
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan.,Department of Intestinal Inflammation Research, Hyogo College of Medicine, Nishinomiya, Japan
| | - Hiroki Ikeuchi
- Department of Inflammatory Bowel Disease Surgery, Hyogo College of Medicine, Nishinomiya, Japan
| | - Shiro Nakamura
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Nishinomiya, Japan.,Department of Intestinal Inflammation Research, Hyogo College of Medicine, Nishinomiya, Japan
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10
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González-Lama Y, Gisbert JP. Monitoring thiopurine metabolites in inflammatory bowel disease. Frontline Gastroenterol 2016; 7:301-307. [PMID: 28839871 PMCID: PMC5369498 DOI: 10.1136/flgastro-2015-100681] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2015] [Revised: 03/09/2016] [Accepted: 03/16/2016] [Indexed: 02/04/2023] Open
Abstract
Thiopurines (azathioprine and mercaptopurine) are one of the immunosuppressive mainstays for the treatment of inflammatory bowel disease. In spite of its widespread use, thiopurine metabolism is still not fully understood, and a significant proportion of patients suffer toxicity or lack of efficacy. Different enzymatic pathways with individual variations constitute a pharmacogenetic model that seems to be suitable for monitoring and therapeutic intervention. This review is focused on current concepts and recent research that may help clinicians to rationally optimise thiopurine treatment in patients with inflammatory bowel disease.
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Affiliation(s)
- Yago González-Lama
- Gastroenterology and Hepatology Department, Puerta de Hierro University Hospital, Majadahonda, Madrid, Spain
| | - Javier P Gisbert
- Gastroenterology Unit, Hospital Universitario de La Princesa and Instituto de Investigación Sanitaria Princesa (IIS-IP), Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBEREHD), Madrid, Madrid, Spain
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11
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Deželak M, Repnik K, Koder S, Ferkolj I, Potočnik U. A Prospective Pharmacogenomic Study of Crohn's Disease Patients during Routine Therapy with Anti-TNF-α Drug Adalimumab: Contribution of ATG5, NFKB1, and CRP Genes to Pharmacodynamic Variability. OMICS-A JOURNAL OF INTEGRATIVE BIOLOGY 2016; 20:296-309. [PMID: 27096233 DOI: 10.1089/omi.2016.0005] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Crohn's disease is often treated with the anti-tumor necrosis factor-α drug adalimumab. However, about 20%-40% of patients do not display adequate therapeutic response. We prospectively evaluated, during a routine therapy of Crohn's disease patients, the candidate autophagy-related genes ATG12 and ATG5 and the inflammation-related genes NFKB1, NFKBIA, and CRP as potential predictors of adalimumab treatment response (pharmacodynamics). The associations of haplotypes and SNPs in these genes with response to drug therapy, biochemical parameters, and body mass were determined at baseline and after 4, 12, 20, and 30 weeks of therapy. Association analysis showed that haplotypes defined with the SNPs rs9373839 and rs510432 in ATG5 gene were significantly associated with positive response to therapy (p < 0.002). In addition, allele C and genotypes CC and CT of the rs1130864 in the CRP gene were positively associated with therapeutic response (p < 0.002). To the best of our knowledge, this is the first report that supports the association of SNPs in ATG5 and CRP genes with response to adalimumab therapy in Crohn's disease. Further study of these biological pathways in larger and independent clinical samples is warranted as novel streams of research on precision medicine and diagnostics for Crohn's disease.
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Affiliation(s)
- Matjaž Deželak
- 1 Centre for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor , Maribor, Slovenia
| | - Katja Repnik
- 1 Centre for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor , Maribor, Slovenia .,2 Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty for Chemistry and Chemical Engineering, University of Maribor , Maribor, Slovenia
| | - Silvo Koder
- 3 University Medical Centre Maribor , Maribor, Slovenia
| | - Ivan Ferkolj
- 4 University Medical Centre Ljubljana , Ljubljana, Slovenia
| | - Uroš Potočnik
- 1 Centre for Human Molecular Genetics and Pharmacogenomics, Faculty of Medicine, University of Maribor , Maribor, Slovenia .,2 Laboratory for Biochemistry, Molecular Biology and Genomics, Faculty for Chemistry and Chemical Engineering, University of Maribor , Maribor, Slovenia
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12
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Ding NS, Hart A, De Cruz P. Systematic review: predicting and optimising response to anti-TNF therapy in Crohn's disease - algorithm for practical management. Aliment Pharmacol Ther 2016; 43:30-51. [PMID: 26515897 DOI: 10.1111/apt.13445] [Citation(s) in RCA: 217] [Impact Index Per Article: 27.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2015] [Revised: 09/02/2015] [Accepted: 10/05/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Nonresponse and loss of response to anti-TNF therapies in Crohn's disease represent significant clinical problems for which clear management guidelines are lacking. AIM To review the incidence, mechanisms and predictors of primary nonresponse and secondary loss of response to formulate practical clinical algorithms to guide management. METHODS Through a systematic literature review, 503 articles were identified which fit the inclusion criteria. RESULTS Primary nonresponse to anti-TNF treatment affects 13-40% of patients. Secondary loss of response to anti-TNF occurs in 23-46% of patients when determined according to dose intensification, and 5-13% of patients when gauged by drug discontinuation rates. Recent evidence suggests that the mechanisms underlying primary nonresponse and secondary loss of response are multifactorial and include disease characteristics (phenotype, location, severity); drug (pharmacokinetic, pharmacodynamic or immunogenicity) and treatment strategy (dosing regimen) related factors. Clinical algorithms that employ therapeutic drug monitoring (using anti-TNF tough levels and anti-drug antibody levels) may be used to determine the underlying cause of primary nonresponse and secondary loss of response respectively and guide clinicians as to which patients are most likely to respond to anti-TNF therapy and help optimise drug therapy for those who are losing response to anti-TNF therapy. CONCLUSIONS Nonresponse or loss of response to anti-TNF occurs commonly in Crohn's disease. Clinical algorithms utilising therapeutic drug monitoring may establish the mechanisms for treatment failure and help guide the subsequent therapeutic approach.
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Affiliation(s)
- N S Ding
- Department of Gastroenterology, St Mark's Hospital, Harrow, UK.,Department of Medicine, Imperial College London, London, UK.,Department of Medicine, University of Melbourne, Melbourne, Vic., Australia
| | - A Hart
- Department of Gastroenterology, St Mark's Hospital, Harrow, UK.,Department of Medicine, Imperial College London, London, UK
| | - P De Cruz
- Department of Medicine, University of Melbourne, Melbourne, Vic., Australia.,Department of Gastroenterology, Austin Health, Melbourne, Vic., Australia
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13
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Koder S, Repnik K, Ferkolj I, Pernat C, Skok P, Weersma RK, Potočnik U. Genetic polymorphism in ATG16L1 gene influences the response to adalimumab in Crohn's disease patients. Pharmacogenomics 2015; 16:191-204. [PMID: 25712183 DOI: 10.2217/pgs.14.172] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
AIM To see if SNPs could help predict response to biological therapy using adalimumab (ADA) in Crohn's disease (CD). MATERIALS & METHODS IBDQ index and CRP levels were used to monitor therapy response. We genotyped 31 CD-associated genes in 102 Slovenian CD patients. RESULTS The strongest association for treatment response defined as decrease in CRP levels was found for ATG16L1 SNP rs10210302. Additional SNPs in 7 out of 31 tested CD-associated genes (PTGER4, CASP9, IL27, C11orf30, CCNY, IL13, NR1I2) showed suggestive association with ADA response. CONCLUSION Our results suggest ADA response in CD patients is genetically predisposed by SNPs in CD risk genes and suggest ATG16L1 as most promising candidate gene for drug response in ADA treatment. Original submitted 24 September 2014; Revision submitted 1 December 2014.
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Affiliation(s)
- Silvo Koder
- University Medical Centre Maribor, Ljubljanska 5, Maribor, Slovenia
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14
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Yoshimura N, Yokoyama Y, Matsuoka K, Takahashi H, Iwakiri R, Yamamoto T, Nakagawa T, Fukuchi T, Motoya S, Kunisaki R, Kato S, Hirai F, Ishiguro Y, Tanida S, Hiraoka S, Mitsuyama K, Ishihara S, Tanaka S, Otaka M, Osada T, Kagaya T, Suzuki Y, Nakase H, Hanai H, Watanabe K, Kashiwagi N, Hibi T. An open-label prospective randomized multicenter study of intensive versus weekly granulocyte and monocyte apheresis in active crohn's disease. BMC Gastroenterol 2015; 15:163. [PMID: 26585569 PMCID: PMC4653849 DOI: 10.1186/s12876-015-0390-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 10/31/2015] [Indexed: 02/07/2023] Open
Abstract
Background Granulocyte and monocyte adsorptive apheresis (GMA) has shown efficacy in patients with active Crohn’s disease (CD). However, with routine weekly therapy, it may take several weeks to achieve remission. This study was performed to assess clinical efficacy and safety of intensive GMA in patients with active CD. Methods In an open-label, prospective, randomized multicentre setting, 104 patients with CD activity index (CDAI) of 200 to 450 received intensive GMA, at two sessions per week (n = 55) or one session per week (n = 49). Clinical remission was defined as a CDAI score <150. Patients in each arm could receive up to 10 GMA sessions. However, GMA treatment could be discontinued when CDAI decreased to <150 (clinical remission level). Results Of the 104 patients, 99 were available for efficacy evaluation as per protocol, 45 in the weekly GMA group, and 54 in the intensive GMA group. Remission was achieved in 16 of 45 patients (35.6 %) in the weekly GMA and in 19 of 54 (35.2 %) in the intensive GMA (NS). Further, the mean time to remission was 35.4 ± 5.3 days in the weekly GMA and 21.7 ± 2.7 days in the intensive GMA (P = 0.0373). Elevated leucocytes and erythrocyte sedimentation rate were significantly improved by intensive GMA, from 8005/μL to 6950/μL (P = 0.0461) and from 54.5 mm/hr to 30.0 mm/hr (P = 0.0059), respectively. In both arms, GMA was well tolerated and was without safety concern. Conclusions In this study, with respect to remission rate, intensive GMA was not superior to weekly GMA, but the time to remission was significantly shorter in the former without increasing the incidence of side effects. UMIN registration # 000003666. Electronic supplementary material The online version of this article (doi:10.1186/s12876-015-0390-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Naoki Yoshimura
- Department of internal medicine, Division of IBD, Tokyo Yamate Medical Centre, Tokyo, Japan.
| | - Yoko Yokoyama
- Division of Internal Medicine, Department of Inflammatory Bowel Disease, Hyogo College of Medicine, Hyogo, Japan.
| | - Katsuyoshi Matsuoka
- Department of Gastroenterology and Hepatology, Tokyo Medical and Dental University, Tokyo, Japan.
| | - Hiroki Takahashi
- Department of General Medicine, National Hospital Organization, Sendai Medical Centre, Miyagi, Japan.
| | - Ryuichi Iwakiri
- Division of Gastroenterology, Department of Internal Medicine, Saga Medical School, Saga, Japan.
| | - Takayuki Yamamoto
- Inflammatory Bowel Disease Centre, Yokkaichi Hazu Medical Centre, Mie, Japan.
| | - Tomoo Nakagawa
- Department of Gastroenterology and Hepatology, Chiba University Hospital, Chiba, Japan.
| | - Takumi Fukuchi
- Department of Gastroenterology and Hepatology, Osakafu Saiseikai Nakatsu Hospital, Osaka, Japan.
| | - Satoshi Motoya
- IBD Center, Sapporo Kosei General Hospital, Hokkaido, Japan.
| | - Reiko Kunisaki
- Inflammatory Bowel Centre, Yokohama City University Medical Centre, Kanagawa, Japan.
| | - Shingo Kato
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Saitama Medical Centre, Saitama Medical University, Saitama, Japan.
| | - Fumihito Hirai
- Department of Gastroenterology Fukuoka University Chikushi Hospital, Fukuoka, Japan.
| | - Yoh Ishiguro
- Department of Gastroenterology and Hematology, Hirosaki National Hospital, Aomori, Japan.
| | - Satoshi Tanida
- Department of Gastroenterology and Metabolism, Nagoya City University, Graduate School of Medical Sciences, Nagoya, Japan.
| | - Sakiko Hiraoka
- Department of Gastroenterology and Hepatology, Dentistry and Pharmaceutical Sciences, Okayama University Graduate School of Medicine, Okayama, Japan.
| | - Keiichi Mitsuyama
- Division of Gastroenterology, Department of Medicine, Inflammatory Bowel Disease Centre, Kurume University School of Medicine, Fukuoka, Japan.
| | - Shunji Ishihara
- Department of Internal Medicine II, Faculty of Medicine, Shimane University, Izumo, Japan.
| | - Shinji Tanaka
- Department of Endoscopy, Hiroshima University Hospital, Hiroshima, Japan.
| | - Michiro Otaka
- Division of Gastroenterology, Kobari General Hospital & Juntendo University, Chiba, Japan.
| | - Taro Osada
- Department of Gastroenterology, Juntendo University School of Medicine, Tokyo, Japan.
| | - Takashi Kagaya
- Department of Gastroenterology, Kanazawa University Hospital, Ishikawa, Japan.
| | - Yasuo Suzuki
- Internal Medicine, Toho University Sakura Medical Centre, Chiba, Japan.
| | - Hiroshi Nakase
- Department of Gastroenterology and Endoscopic Medicine, Kyoto University Hospital, Kyoto, Japan.
| | - Hiroyuki Hanai
- Centre for Gastroenterology and Inflammatory Bowel Disease Research, Hamamatsu South Hospital, Shizuoka, Japan.
| | - Kenji Watanabe
- Department of Gastroenterology, Osaka City University Graduate School of Medicine, Osaka, Japan.
| | | | - Toshifumi Hibi
- Kitasato Institute Hospital, Centre for Advanced IBD Research and Treatment, Kitasato University, 108-8642 Minato-ku, Tokyo, Japan.
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15
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Abstract
Pharmacogenetic studies have been performed for almost all classes of drugs that have been used in IBD but very few have generated consistent findings or have been replicated. The genetic test that has been approved for clinical practice is TPMT testing prior to starting treatment with thiopurine drugs. Research in IBD pharmacogenetics has focused on prediction of drug efficacy and toxicity by identifying polymorphisms in the genes encoding enzymes that are involved in metabolic pathways. Recent research has mainly focused on therapeutic agents such as azathioprine, methotrexate, aminosalicylates, corticosteroids, infliximab and adalimumab. Future pharmaceutical trials should include pharmacogenetic research to test appropriate candidate genes in a prospective manner and correlate genetic associations with trial outcomes and relevant functional data.
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16
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Roberts RL, Barclay ML. Update on thiopurine pharmacogenetics in inflammatory bowel disease. Pharmacogenomics 2015; 16:891-903. [PMID: 26067482 DOI: 10.2217/pgs.15.29] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Azathioprine and 6-mercaptopurine remain pivotal therapies for the maintenance of disease remission in patients with Crohn's disease and ulcerative colitis. While thiopurine S-methyltransferase deficiency was the first pharmacogenetic phenomenon to be recognized to influence thiopurine toxicity and reliably predict leukopenia, it does not predict other adverse effects, nor does it explain most cases of thiopurine resistance. In recent years, a number of other genetic polymorphisms have received increasing attention in the literature. In particular, SNPs in NUDT15 and in the class II HLA locus have been shown to predict thiopurine-related leukopenia and pancreatitis. The aim of this review is to provide a concise update of genetic variability which may influence patient response to azathioprine and 6-mercaptopurine.
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Affiliation(s)
- Rebecca L Roberts
- Department of Surgical Sciences, Dunedin School of Medicine, PO Box 56, Dunedin, New Zealand
| | - Murray L Barclay
- Department of Medicine, University of Otago Christchurch, PO Box 4345, Christchurch, New Zealand.,Department of Gastroenterology, Christchurch Hospital, Private Bag 4710, Christchurch, New Zealand
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17
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Ventham NT, Kalla R, Kennedy NA, Satsangi J, Arnott ID. Predicting outcomes in acute severe ulcerative colitis. Expert Rev Gastroenterol Hepatol 2015; 9:405-15. [PMID: 25494666 DOI: 10.1586/17474124.2015.992880] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Response to corticosteroid treatment in acute severe ulcerative colitis (ASUC) has changed very little in the past 50 years. Predicting those at risk at an early stage helps stratify patients into those who may require second line therapy or early surgical treatment. Traditionally, risk scores have used a combination of clinical, radiological and biochemical parameters; established indices include the 'Travis' and 'Ho' scores. Recently, inflammatory bowel disease genetic risk alleles have been built into models to predict outcome in ASUC. Given the multifactorial nature of inflammatory bowel disease pathogenesis, in the future, composite scores integrating clinical, biochemical, serological, genetic and other '-omic' data will be increasingly investigated. Although these new genetic prediction models are promising, they have yet to supplant traditional scores, which remain the best practice. In this modern era of rescue therapies in ASUC, robust scoring systems to predict failure of ciclosporine and infliximab must be devised.
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Affiliation(s)
- Nicholas T Ventham
- Centre for Genomics and Molecular medicine, Western General Hospital, University of Edinburgh, Crewe Road South, Edinburgh EH4 2XU, UK
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18
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Abstract
The prodrug azathioprine is primarily used for maintaining remission in inflammatory bowel disease, but approximately 30% of the patients suffer adverse side effects. The prodrug is activated by glutathione conjugation and release of 6-mercaptopurine, a reaction most efficiently catalyzed by glutathione transferase (GST) A2-2. Among five genotypes of GST A2-2, the variant A2*E has threefold-fourfold higher catalytic efficiency with azathioprine, suggesting that the expression of A2*E could boost 6-mercaptopurine release and adverse side effects in treated patients. Structure-activity studies of the GST A2-2 variants and homologous alpha class GSTs were made to delineate the determinants of high catalytic efficiency compared to other alpha class GSTs. Engineered chimeras identified GST peptide segments of importance, and replacing the corresponding regions in low-activity GSTs by these short segments produced chimeras with higher azathioprine activity. By contrast, H-site mutagenesis led to decreased azathioprine activity when active-site positions 208 and 213 in these favored segments were mutagenized. Alternative substitutions indicated that hydrophobic residues were favored. A pertinent question is whether variant A2*E represents the highest azathioprine activity achievable within the GST structural framework. This issue was addressed by mutagenesis of H-site residues assumed to interact with the substrate based on molecular modeling. The mutants with notably enhanced activities had small or polar residues in the mutated positions. The most active mutant L107G/L108D/F222H displayed a 70-fold enhanced catalytic efficiency with azathioprine. The determination of its structure by X-ray crystallography showed an expanded H-site, suggesting improved accommodation of the transition state for catalysis.
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Affiliation(s)
- Olof Modén
- Department of Chemistry-BMC, Uppsala University, Uppsala, Sweden
| | - Bengt Mannervik
- Department of Chemistry-BMC, Uppsala University, Uppsala, Sweden; Department of Neurochemistry, Stockholm University, Stockholm, Sweden.
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19
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Update 2014: advances to optimize 6-mercaptopurine and azathioprine to reduce toxicity and improve efficacy in the management of IBD. Inflamm Bowel Dis 2015; 21:445-52. [PMID: 25248004 DOI: 10.1097/mib.0000000000000197] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND The thiopurine drugs, 6-mercaptopurine (6-MP) and azathioprine (AZA), remain as a mainstay therapy in inflammatory bowel disease (IBD). Differences in metabolism of these drugs lead to individual variation in thiopurine metabolite levels that can determine its therapeutic efficacy and development of adverse reactions. In this update, we will review thiopurine metabolic pathway along with the up-to-date approaches in administering thiopurine medications based on the current literature. METHODS A search of the PubMed database by 2 independent reviewers identifying 98 articles evaluating thiopurine metabolism and IBD management. RESULTS Monitoring thiopurine metabolites can assist physicians in optimizing 6-MP and AZA therapy in treating patients with IBD. Of the dosing strategies reviewed, we found evidence for monitoring thiopurine metabolite level, use of allopurinol with thiopurine, use of mesalamine with thiopurine, combination therapy with thiopurine and anti-tumor necrosis factor agents, and split dosing of AZA or 6-MP to optimize thiopurine therapy and minimize adverse effects in IBD. CONCLUSIONS Based on the currently available literature, various dosing strategies to improve therapeutic response and reduce adverse reactions can be considered, including use of allopurinol with thiopurine, use of mesalamine with thiopurine, combination therapy with thiopurine and anti-tumor necrosis factor agents, and split dosing of thiopurine.
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20
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Cravo M, Ferreira P, Sousa P, Moura-Santos P, Velho S, Tavares L, Deus JR, Ministro P, da Silva JP, Correia L, Velosa J, Maio R, Brito M. Clinical and genetic factors predicting response to therapy in patients with Crohn's disease. United European Gastroenterol J 2014; 2:47-56. [PMID: 24918007 PMCID: PMC4040806 DOI: 10.1177/2050640613519626] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Accepted: 12/14/2013] [Indexed: 12/18/2022] Open
Abstract
AIM To identify clinical and/or genetic predictors of response to several therapies in Crohn's disease (CD) patients. METHODS We included 242 patients with CD (133 females) aged (mean ± standard deviation) 39 ± 12 years and a disease duration of 12 ± 8 years. The single-nucleotide polymorphisms (SNPs) studied were ABCB1 C3435T and G2677T/A, IL23R G1142A, C2370A, and G9T, CASP9 C93T, Fas G670A and LgC844T, and ATG16L1 A898G. Genotyping was performed with real-time PCR with Taqman probes. RESULTS Older patients responded better to 5-aminosalicylic acid (5-ASA) and to azathioprine (OR 1.07, p = 0.003 and OR 1.03, p = 0.01, respectively) while younger ones responded better to biologicals (OR 0.95, p = 0.06). Previous surgery negatively influenced response to 5-ASA compounds (OR 0.25, p = 0.05), but favoured response to azathioprine (OR 2.1, p = 0.04). In respect to genetic predictors, we observed that heterozygotes for ATGL16L1 SNP had a significantly higher chance of responding to corticosteroids (OR 2.51, p = 0.04), while homozygotes for Casp9 C93T SNP had a lower chance of responding both to corticosteroids and to azathioprine (OR 0.23, p = 0.03 and OR 0.08, p = 0.02,). TT carriers of ABCB1 C3435T SNP had a higher chance of responding to azathioprine (OR 2.38, p = 0.01), while carriers of ABCB1 G2677T/A SNP, as well as responding better to azathioprine (OR 1.89, p = 0.07), had a lower chance of responding to biologicals (OR 0.31, p = 0.07), which became significant after adjusting for gender (OR 0.75, p = 0.005). CONCLUSIONS In the present study, we were able to identify a number of clinical and genetic predictors of response to several therapies which may become of potential utility in clinical practice. These are preliminary results that need to be replicated in future pharmacogenomic studies.
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Affiliation(s)
- Marilia Cravo
- Hospital Beatriz Angelo, Loures, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
| | - Paula Ferreira
- Escola Superior de Tecnologias da Saude, Lisbon, Portugal
| | | | - Paula Moura-Santos
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
- Hospital Santa Maria, Lisboa, Portugal
| | | | | | | | | | | | - Luis Correia
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
- Hospital Santa Maria, Lisboa, Portugal
| | - Jose Velosa
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
- Hospital Santa Maria, Lisboa, Portugal
| | - Rui Maio
- Hospital Beatriz Angelo, Loures, Portugal
| | - Miguel Brito
- Escola Superior de Tecnologias da Saude, Lisbon, Portugal
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21
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Min MX, Weinberg DI, McCabe RP. Allopurinol enhanced thiopurine treatment for inflammatory bowel disease: safety considerations and guidelines for use. J Clin Pharm Ther 2014; 39:107-11. [DOI: 10.1111/jcpt.12125] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2013] [Accepted: 12/05/2013] [Indexed: 12/14/2022]
Affiliation(s)
- M. X. Min
- Abbott Northwestern Hospital; Minneapolis MN USA
| | | | - R. P. McCabe
- Minnesota Gastroenterology PA; Minneapolis MN USA
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22
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Godman B, Finlayson AE, Cheema PK, Zebedin-Brandl E, Gutiérrez-Ibarluzea I, Jones J, Malmström RE, Asola E, Baumgärtel C, Bennie M, Bishop I, Bucsics A, Campbell S, Diogene E, Ferrario A, Fürst J, Garuoliene K, Gomes M, Harris K, Haycox A, Herholz H, Hviding K, Jan S, Kalaba M, Kvalheim C, Laius O, Lööv SA, Malinowska K, Martin A, McCullagh L, Nilsson F, Paterson K, Schwabe U, Selke G, Sermet C, Simoens S, Tomek D, Vlahovic-Palcevski V, Voncina L, Wladysiuk M, van Woerkom M, Wong-Rieger D, Zara C, Ali R, Gustafsson LL. Personalizing health care: feasibility and future implications. BMC Med 2013; 11:179. [PMID: 23941275 PMCID: PMC3750765 DOI: 10.1186/1741-7015-11-179] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 07/09/2013] [Indexed: 01/11/2023] Open
Abstract
Considerable variety in how patients respond to treatments, driven by differences in their geno- and/ or phenotypes, calls for a more tailored approach. This is already happening, and will accelerate with developments in personalized medicine. However, its promise has not always translated into improvements in patient care due to the complexities involved. There are also concerns that advice for tests has been reversed, current tests can be costly, there is fragmentation of funding of care, and companies may seek high prices for new targeted drugs. There is a need to integrate current knowledge from a payer's perspective to provide future guidance. Multiple findings including general considerations; influence of pharmacogenomics on response and toxicity of drug therapies; value of biomarker tests; limitations and costs of tests; and potentially high acquisition costs of new targeted therapies help to give guidance on potential ways forward for all stakeholder groups. Overall, personalized medicine has the potential to revolutionize care. However, current challenges and concerns need to be addressed to enhance its uptake and funding to benefit patients.
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Affiliation(s)
- Brian Godman
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, SE-141 86, Stockholm, Sweden
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
- National Institute for Science and Technology on Innovation on Neglected Diseases, Centre for Technological Development in Health, Oswaldo Cruz Foundation (Fiocruz), Rio de Janeiro, Brazil
| | - Alexander E Finlayson
- King’s Centre for Global Health, Global Health Offices, Weston Education Centre, Cutcombe Road, London SE5 9RJ, UK
| | - Parneet K Cheema
- Sunnybrook Odette Cancer Centre, 2075 Bayview Avenue, Toronto, ON, Canada
| | - Eva Zebedin-Brandl
- Hauptverband der Österreichischen Sozialversicherungsträger, 21 Kundmanngasse, AT-1031, Wien, Austria
- Institute of Pharmacology and Toxicology, Department for Biomedical Sciences, University of Vienna, Vienna, Austria
| | - Inaki Gutiérrez-Ibarluzea
- Osteba Basque Office for HTA, Ministry of Health of the Basque Country, Donostia-San Sebastian 1, 01010, Vitoria-Gasteiz, Basque Country, Spain
| | - Jan Jones
- NHS Tayside, Kings Cross, Dundee DD3 8EA, UK
| | - Rickard E Malmström
- Department of Medicine, Clinical Pharmacology Unit, Karolinska Institutet, Karolinska University Hospital Solna, SE-17176, Stockholm, Sweden
| | - Elina Asola
- Pharmaceutical Pricing Board, Ministry of Social Affairs and Health, PO Box 33, FI-00023 Government, Helsinki, Finland
| | | | - Marion Bennie
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, UK
- Public Health & Intelligence Strategic Business Unit, NHS National Services Scotland, Edinburgh EH12 9EB, UK
| | - Iain Bishop
- Public Health & Intelligence Strategic Business Unit, NHS National Services Scotland, Edinburgh EH12 9EB, UK
| | - Anna Bucsics
- Hauptverband der Österreichischen Sozialversicherungsträger, 21 Kundmanngasse, AT-1031, Wien, Austria
| | - Stephen Campbell
- Centre for Primary Care, Institute of Population Health, University of Manchester, Manchester M13 9PL, UK
- NIHR Greater Manchester Primary Care Patient Safety Translational Research Centre, Manchester M13 9PL, UK
| | - Eduardo Diogene
- Unitat de Coordinació i Estratègia del Medicament, Direcció Adjunta d'Afers Assistencials, Catalan Institute of Health, Barcelona, Spain
| | - Alessandra Ferrario
- London School of Economics and Political Science, LSE Health, Houghton Street, London WC2A 2AE, UK
| | - Jurij Fürst
- Health Insurance Institute, Miklosiceva 24, SI-1507, Ljubljana, Slovenia
| | - Kristina Garuoliene
- Medicines Reimbursement Department, National Health Insurance Fund, Europas a. 1, Vilnius, Lithuania
| | - Miguel Gomes
- INFARMED, Parque da Saúde de Lisboa, Avenida do Brasil 53, 1749-004, Lisbon, Portugal
| | - Katharine Harris
- King’s Centre for Global Health, Global Health Offices, Weston Education Centre, Cutcombe Road, London SE5 9RJ, UK
| | - Alan Haycox
- Liverpool Health Economics Centre, University of Liverpool, Chatham Street, Liverpool L69 7ZH, UK
| | - Harald Herholz
- Kassenärztliche Vereinigung Hessen, 15 Georg Voigt Strasse, DE-60325, Frankfurt am Main, Germany
| | - Krystyna Hviding
- Norwegian Medicines Agency, Sven Oftedals vei 8, 0950, Oslo, Norway
| | - Saira Jan
- Clinical Programs, Pharmacy Management, Horizon Blue Cross Blue Shield of New Jersey, Newark, USA
| | - Marija Kalaba
- Republic Institute for Health Insurance, Jovana Marinovica 2, 11000, Belgrade, Serbia
| | | | - Ott Laius
- State Agency of Medicines, Nooruse 1, 50411, Tartu, Estonia
| | - Sven-Ake Lööv
- Department of Healthcare Development, Stockholm County Council, Stockholm, Sweden
| | - Kamila Malinowska
- HTA Consulting, Starowiślna Street, 17/3, 31-038, Cracow, Poland
- Public Health School, The Medical Centre of Postgraduate Education, Kleczewska Street, 61/63, 01-813, Warsaw, Poland
| | - Andrew Martin
- NHS Greater Manchester Commissioning Support Unit, Salford, Manchester, UK
| | - Laura McCullagh
- National Centre for Pharmacoeconomics, St James's Hospital, Dublin 8, Ireland
| | - Fredrik Nilsson
- Dental and Pharmaceuticals Benefits Agency (TLV), PO Box 22520 Flemingatan 7, SE-104, Stockholm, Sweden
| | | | - Ulrich Schwabe
- University of Heidelberg, Institute of Pharmacology, D-69120, Heidelberg, Germany
| | - Gisbert Selke
- Wissenschaftliches Institut der AOK (WIDO), Rosenthaler Straße 31, 10178, Berlin, Germany
| | | | - Steven Simoens
- KU Leuven Department of Pharmaceutical and Pharmacological Sciences, 3000, Leuven, Belgium
| | - Dominik Tomek
- Faculty of Pharmacy, Comenius University and Faculty of Medicine, Slovak Medical University, Bratislava, Slovakia
| | - Vera Vlahovic-Palcevski
- Unit for Clinical Pharmacology, University Hospital Rijeka, Krešimirova 42, 51000, Rijeka, Croatia
| | - Luka Voncina
- Ministry of Health, Republic of Croatia, Ksaver 200a, Zagreb, Croatia
| | | | - Menno van Woerkom
- Dutch Institute for Rational Use of Medicines, 3527 GV, Utrecht, Netherlands
| | - Durhane Wong-Rieger
- Institute for Optimizing Health Outcomes, 151 Bloor Street West, Suite 600, Toronto, ON M5S 1S4, Canada
| | - Corrine Zara
- Barcelona Health Region, Catalan Health Service, Esteve Terrades 30, 08023, Barcelona, Spain
| | - Raghib Ali
- INDOX Cancer Research Network, Cancer Epidemiology Unit, University of Oxford, Oxford, UK
| | - Lars L Gustafsson
- Department of Laboratory Medicine, Division of Clinical Pharmacology, Karolinska Institutet, Karolinska University Hospital Huddinge, SE-141 86, Stockholm, Sweden
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23
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Ventham NT, Kennedy NA, Nimmo ER, Satsangi J. Beyond gene discovery in inflammatory bowel disease: the emerging role of epigenetics. Gastroenterology 2013; 145:293-308. [PMID: 23751777 PMCID: PMC3919211 DOI: 10.1053/j.gastro.2013.05.050] [Citation(s) in RCA: 211] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 05/16/2013] [Accepted: 05/26/2013] [Indexed: 02/07/2023]
Abstract
In the past decade, there have been fundamental advances in our understanding of genetic factors that contribute to the inflammatory bowel diseases (IBDs) Crohn's disease and ulcerative colitis. The latest international collaborative studies have brought the number of IBD susceptibility gene loci to 163. However, genetic factors account for only a portion of overall disease variance, indicating a need to better explore gene-environment interactions in the development of IBD. Epigenetic factors can mediate interactions between the environment and the genome; their study could provide new insight into the pathogenesis of IBD. We review recent progress in identification of genetic factors associated with IBD and discuss epigenetic mechanisms that could affect development and progression of IBD.
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Affiliation(s)
- Nicholas T. Ventham
- Reprint requests Address requests for reprints to: Nicholas T. Ventham, Gastrointestinal Unit, Centre for Molecular Medicine, Institute of Genetics and Molecular Medicine, Western General Hospital, Edinburgh EH4 2XU, Scotland. fax: +44 131 651 1085.
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