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1.
Sci Rep ; 9(1): 14812, 2019 Oct 15.
Artigo em Inglês | MEDLINE | ID: mdl-31616008

RESUMO

Here, we assessed whether 41 SNPs within steroid hormone genes associated with erosive disease. The most relevant finding was the rheumatoid factor (RF)-specific effect of the CYP1B1, CYP2C9, ESR2, FcγR3A, and SHBG SNPs to modulate the risk of bone erosions (P = 0.004, 0.0007, 0.0002, 0.013 and 0.015) that was confirmed through meta-analysis of our data with those from the DREAM registry (P = 0.000081, 0.0022, 0.00074, 0.0067 and 0.0087, respectively). Mechanistically, we also found a gender-specific correlation of the CYP2C9rs1799853T/T genotype with serum vitamin D3 levels (P = 0.00085) and a modest effect on IL1ß levels after stimulation of PBMCs or blood with LPS and PHA (P = 0.0057 and P = 0.0058). An overall haplotype analysis also showed an association of 3 ESR1 haplotypes with a reduced risk of erosive arthritis (P = 0.009, P = 0.002, and P = 0.002). Furthermore, we observed that the ESR2, ESR1 and FcγR3A SNPs influenced the immune response after stimulation of PBMCs or macrophages with LPS or Pam3Cys (P = 0.002, 0.0008, 0.0011 and 1.97•10-7). Finally, we found that a model built with steroid hormone-related SNPs significantly improved the prediction of erosive disease in seropositive patients (PRF+ = 2.46•10-8) whereas no prediction was detected in seronegative patients (PRF- = 0.36). Although the predictive ability of the model was substantially lower in the replication population (PRF+ = 0.014), we could confirm that CYP1B1 and CYP2C9 SNPs help to predict erosive disease in seropositive patients. These results are the first to suggest a RF-specific association of steroid hormone-related polymorphisms with erosive disease.

2.
Reumatol. clín. (Barc.) ; 15(4): 229-236, jul.-ago. 2019. tab
Artigo em Espanhol | LILACS-Express | ID: ibc-ET1-3394

RESUMO

Objetivo: Describir los objetivos, la metodología y los resultados del primer año de la nueva versión del registro español de acontecimientos adversos de terapias biológicas y fármacos sintéticos con diana identificable en enfermedades reumáticas (BIOBADASER III). Metodología: Registro prospectivo multicéntrico de pacientes con enfermedades inflamatorias reumáticas en tratamiento con terapia biológica o fármacos sintéticos con diana identificable y atendidos en servicios de Reumatología en España. El objetivo principal de BIOBADASER Fase III es la recogida y análisis de acontecimientos adversos al que se ha añadido como objetivo secundario la evaluación de la efectividad mediante la recogida de índices de actividad. Los pacientes que entran en el registro son evaluados al menos una vez cada año y cada vez que presenten un acontecimiento adverso o se produzcan modificaciones en el tratamiento. La recogida de datos de la fase iii se inició el 17 de diciembre del 2015. Resultados: Durante el primer año han participado 35 centros. El número de pacientes incluidos en esta nueva fase en diciembre del 2016 era de 2.664. La edad media era de 53,7 años, con una mediana de duración de la enfermedad hasta el inicio de tratamiento de 8,1 años. Un 40,4% de los pacientes estaban diagnosticados de artritis reumatoide. Los acontecimientos adversos más frecuentes eran las infecciones e infestaciones. Conclusiones: La fase iii de BIOBADASER se ha puesto en marcha para responder a un entorno farmacológico cambiante con la aparición de los biosimilares y las pequeñas moléculas en el tratamiento de la patología reumática. Esta nueva etapa se adapta a los cambios normativos en la comunicación de acontecimientos adversos y amplía la información recogida incluyendo los índices de actividad


Objective: Describe the objectives, methods and results of the first year of the new version of the Spanish registry of adverse events involving biological therapies and synthetic drugs with an identifiable target in rheumatic diseases (BIOBADASER III). Methodology: Multicenter prospective registry of patients with rheumatic inflammatory diseases being treated with biological drugs or synthetic drugs with an identifiable target in rheumatology departments in Spain. The main objective of BIOBADASER Phase III is the registry and analysis of adverse events; moreover, a secondary objective was added consisting of assessing the effectiveness by means of the registry of activity indexes. Patients in the registry are evaluated at least once every year and whenever they experience an adverse event or a change in treatment. The collection of data for phase iii began on 17 December 2015. Results: During the first year, 35 centers participated. The number of patients included in this new phase in December 2016 was 2,664. The mean age was 53.7 years and the median duration of treatment was 8.1 years. In all, 40.4% of the patients were diagnosed with rheumatoid arthritis. The most frequent adverse events were infections and infestations. Conclusions: BIOBADASER Phase III has been launched to adapt to a changing pharmacological environment, with the introduction of biosimilars and small molecules in the treatment of rheumatic diseases. This new stage is adapted to the changes in the reporting of adverse events and now includes information related to activity scores

3.
PLoS One ; 14(2): e0213073, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-30818333

RESUMO

Research in rheumatoid arthritis (RA) is increasingly focused on the discovery of biomarkers that could enable personalized treatments. The genetic biomarkers associated with the response to TNF inhibitors (TNFi) are among the most studied. They include 12 SNPs exhibiting promising results in the three largest genome-wide association studies (GWAS). However, they still require further validation. With this aim, we assessed their association with response to TNFi in a replication study, and a meta-analysis summarizing all non-redundant data. The replication involved 755 patients with RA that were treated for the first time with a biologic drug, which was either infliximab (n = 397), etanercept (n = 155) or adalimumab (n = 203). Their DNA samples were successfully genotyped with a single-base extension multiplex method. Lamentably, none of the 12 SNPs was associated with response to the TNFi in the replication study (p > 0.05). However, a drug-stratified exploratory analysis revealed a significant association of the NUBPL rs2378945 SNP with a poor response to etanercept (B = -0.50, 95% CI = -0.82, -0.17, p = 0.003). In addition, the meta-analysis reinforced the previous association of three SNPs: rs2378945, rs12142623, and rs4651370. In contrast, five of the remaining SNPs were less associated than before, and the other four SNPs were no longer associated with the response to treatment. In summary, our results highlight the complexity of the pharmacogenetics of TNFi in RA showing that it could involve a drug-specific component and clarifying the status of the 12 GWAS-drawn SNPs.

5.
Semin Arthritis Rheum ; 49(1): 126-135, 2019 08.
Artigo em Inglês | MEDLINE | ID: mdl-30655091

RESUMO

OBJECTIVE: Tocilizumab (TCZ) has shown efficacy in clinical trials on giant cell arteritis (GCA). Real-world data are scarce. Our objective was to assess efficacy and safety of TCZ in unselected patients with GCA in clinical practice Methods: Observational, open-label multicenter study from 40 national referral centers of GCA patients treated with TCZ due to inefficacy or adverse events of previous therapy. Outcomes variables were improvement of clinical features, acute phase reactants, glucocorticoid-sparing effect, prolonged remission and relapses. A comparative study was performed: (a) TCZ route (SC vs. IV); (b) GCA duration (≤6 vs. >6 months); (c) serious infections (with or without); (d) ≤15 vs. >15 mg/day at TCZ onset. RESULTS: 134 patients; mean age, 73.0 ± 8.8 years. TCZ was started after a median [IQR] time from GCA diagnosis of 13.5 [5.0-33.5] months. Ninety-eight (73.1%) patients had received immunosuppressive agents. After 1 month of TCZ 93.9% experienced clinical improvement. Reduction of CRP from 1.7 [0.4-3.2] to 0.11 [0.05-0.5] mg/dL (p < 0.0001), ESR from 33 [14.5-61] to 6 [2-12] mm/1st hour (p < 0.0001) and decrease in patients with anemia from 16.4% to 3.8% (p < 0.0001) were observed. Regardless of administration route or disease duration, clinical improvement leading to remission at 6, 12, 18, 24 months was observed in 55.5%, 70.4%, 69.2% and 90% of patients. Most relevant adverse side-effect was serious infections (10.6/100 patients-year), associated with higher doses of prednisone during the first three months of therapy. CONCLUSION: In clinical practice, TCZ yields a rapid and maintained improvement of refractory GCA. Serious infections appear to be higher than in clinical trials.

6.
Arthritis Res Ther ; 20(1): 227, 2018 Oct 10.
Artigo em Inglês | MEDLINE | ID: mdl-30305158

RESUMO

BACKGROUND: Biologic therapy has changed the prognosis of patients with juvenile idiopathic arthritis (JIA). The aim of this study was to examine the pattern of use, drug survival, and adverse events of biologics in patients with JIA during the period from diagnosis to adulthood. METHODS: All patients included in BIOBADASER (Spanish Registry for Adverse Events of Biological Therapy in Rheumatic Diseases), a multicenter prospective registry, diagnosed with JIA between 2000 and 2015 were analyzed. Proportions, means, and SDs were used to describe the population. Incidence rates and 95% CIs were calculated to assess adverse events. Kaplan-Meier analysis was used to compare the drug survival rates. RESULTS: A total of 469 patients (46.1% women) were included. Their mean age at diagnosis was 9.4 ± 5.3 years. Their mean age at biologic treatment initiation was 23.9 ± 13.9 years. The pattern of use of biologics during their pediatric years showed a linear increase from 24% in 2000 to 65% in 2014. Biologic withdrawal for disease remission was higher in patients who initiated use biologics prior to 16 years of age than in those who were older (25.7% vs 7.9%, p < 0.0001). Serious adverse events had a total incidence rate of 41.4 (35.2-48.7) of 1000 patient-years. Patients younger than 16 years old showed significantly increased infections (p < 0.001). CONCLUSIONS: Survival and suspension by remission of biologics were higher when these compounds were initiated in patients with JIA who had not yet reached 16 years of age. The incidence rate of serious adverse events in pediatric vs adult patients with JIA treated with biologics was similar; however, a significant increase of infection was observed in patients under 16 years old.

7.
Arthritis Rheumatol ; 2018 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-30277011

RESUMO

OBJECTIVES: The new RA-specific autoantibodies, the anti-carbamylated protein antibodies (ACarPA), provide an opportunity to improve management and understanding of RA. However, many questions remain about them, including their relationship with HLA-DRB1 alleles. MATERIAL AND METHODS: The samples of 1126 RA patients from three collections were obtained. Serum reactivity against in vitro carbamylated FCS proteins was determined by ELISA. HLA-DRB1 alleles were determined by either hybridization techniques or imputation from HLA dense genotypes. These results were combined by meta-analysis with data from three previously reported cohorts. The carrier frequencies of the common HLA-DRB1 alleles were compared between the antibody-positive subgroups and the double-negative subgroup in ACPA/ACarPA stratified patients, and between the four patient strata and the healthy controls. RESULTS: Meta-analysis was conducted with 3709 RA patients and 2305 healthy subjects. It revealed a significant increase of HLA-DRB1*03 carriers in the ACPA- /ACarPA+ subgroup in comparison with both ACPA- /ACarPA- patients and healthy controls that was consistent in the six sample collections. This association was independent of the SE and the analyzed confounders. No other allele was specifically associated with ACPA- /ACarPA+ patients. In contrast, the SE was significantly increased in the ACPA+ /ACarPA- and ACPA+ /ACarPA+ patient subgroups without distinction between them. Also, some alleles (including HLA-DRB1*03) were associated with protection from ACPA+ RA. CONCLUSION: A specific association of HLA-DRB1*03 with ACPA- /ACarPA+ RA has been identified that suggests preferential presentation of carbamylated peptides as a new mechanism for HLA contribution to RA susceptibility. This article is protected by copyright. All rights reserved.

8.
Pharmacogenomics J ; 2018 Oct 05.
Artigo em Inglês | MEDLINE | ID: mdl-30287909

RESUMO

The aim of this case-control study was to evaluate whether 47 single-nucleotide polymorphisms (SNPs) in steroid hormone-related genes are associated with the risk of RA and anti-TNF drug response. We conducted a case-control study in 3 European populations including 2936 RA patients and 2197 healthy controls. Of those, a total of 1985 RA patients were treated with anti-TNF blockers. The association of potentially interesting markers in the discovery population was validated through meta-analysis with data from DREAM and DANBIO registries. Although none of the selected variants had a relevant role in modulating RA risk, the meta-analysis of the linear regression data with those from the DREAM and DANBIO registries showed a significant correlation of the CYP3A4rs11773597 and CYP2C9rs1799853 variants with changes in DAS28 after the administration of anti-TNF drugs (P = 0.00074 and P = 0.006, respectively). An overall haplotype analysis also showed that the ESR2GGG haplotype significantly associated with a reduced chance of having poor response to anti-TNF drugs (P = 0.0009). Finally, a ROC curve analysis confirmed that a model built with eight steroid hormone-related variants significantly improved the ability to predict drug response compared with the reference model including demographic and clinical variables (AUC = 0.633 vs. AUC = 0.556; PLR_test = 1.52 × 10-6). These data together with those reporting that the CYP3A4 and ESR2 SNPs correlate with the expression of TRIM4 and ESR2 mRNAs in PBMCs (ranging from P = 1.98 × 10-6 to P = 2.0 × 10-35), and that the CYP2C9rs1799853 SNP modulates the efficiency of multiple drugs, suggest that steroid hormone-related genes may have a role in determining the response to anti-TNF drugs.KEY POINTS• Polymorphisms within the CYP3A4 and CYP2C9 loci correlate with changes in DAS28 after treatment with anti-TNF drugs.• A haplotype including eQTL SNPs within the ESR2 gene associates with better response to anti-TNF drugs.• A genetic model built with eight steroid hormone-related variants significantly improved the ability to predict drug response.

9.
Arthritis Rheumatol ; 2018 Sep 24.
Artigo em Inglês | MEDLINE | ID: mdl-30251476

RESUMO

OBJECTIVE: A genome-wide association study (GWAS) was conducted to shed light into the genetic background influencing the development of cardiovascular (CV) disease in patients diagnosed with rheumatoid arthritis (RA). METHODS: After quality control and imputation, a total of 6,308,944 polymorphisms across the whole genome were analysed in 2,989 RA patients from European origin. Data on subclinical atherosclerosis, obtained by carotid ultrasonography through assessment of carotid intima-media thickness (cIMT) and presence/absence of carotid plaques, were available for 1,355 individuals. RESULTS: A genetic variant of the RARB gene (rs116199914) was associated with cIMT values at the genome-wide level of significance (minor allele (G): beta (ß) coefficient=0.142, P=1.86E-08). Interestingly, rs116199914 overlapped with regulatory elements in tissues related to CV pathophysiology and immune cells. In addition, biological pathway enrichment and predictive protein-protein relationship analyses, including suggestive GWAS signals of potential relevance, revealed a functional enrichment of the collagen biosynthesis network related to the presence/absence of carotid plaques (GO:0032964, PFDR =4.01E-03). Furthermore, our data suggest a potential influence of the previously described candidate CV risk loci NFKB1, MSRA and ZC3HC1 (P=8.12E-04, P=5.94E-04 and P=2.46E-04, respectively). CONCLUSION: Our study strongly suggests that genetic variation within RARB contributes to the development of subclinical atherosclerosis in patients with RA. This article is protected by copyright. All rights reserved.

10.
Am J Ophthalmol ; 195: 181-190, 2018 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-30081019

RESUMO

OBJECTIVE: To demonstrate the efficacy of the anti-interleukin-6 receptor monoclonal antibody tocilizumab in patients with moderate-to-severe corticosteroid-resistant Graves orbitopathy (GO). DESIGN: Double-masked randomized clinical trial. METHODS: Setting and Participants: Thirty-two adults with moderate-to-severe corticosteroid-resistant GO from 10 medical centers in Spain were randomized (1:1). INTERVENTION: Randomization to either 8 mg/kg body weight tocilizumab or placebo administered intravenously at weeks 0, 4, 8, and 12, and follow-up for an additional 28 weeks. Main Outcomes and Measures: The primary outcome was the proportion of patients with a change from baseline to week 16 of at least 2 in the clinical activity score (CAS). RESULTS: The primary outcome was met by 93.3% (95% confidence interval [CI] 70.1%-98.8%) of the patients receiving tocilizumab and 58.8% (36%-78.3%) receiving placebo (P = .04; odds ratio, 9.8 [CI 1.3-73.2]). A significant difference was also observed in the proportion of patients achieving a CAS < 3 (86.7% [CI 62.1%-96.2%] vs 35.2% [CI 17.3%-58.7%], P = .005; OR 11.9 [CI 2.1-63.1]) at week 16. Additionally, a larger proportion of patients with improvement in the European Group on GO-proposed composite ophthalmic score at week 16 (73.3% [CI 48%-89.1%] vs 29.4% [CI 13.2%-53.1%]; P = .03), and exophthalmos size change from baseline to week 16 (-1.5 [-2.0 to 0.5] mm vs 0.0 [-1.0 to 0.5] mm; P = .01) were seen with tocilizumab. One patient experienced a moderate increase in transaminases at week 8; another had an acute pyelonephritis at week 32 in the tocilizumab-treated group. CONCLUSION: Tocilizumab offers a meaningful improvement in activity and severity in corticosteroid-resistant GO. This trial justifies further studies to characterize the role of tocilizumab in GO.

11.
PLoS One ; 13(5): e0196793, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-29734345

RESUMO

Genetic biomarkers are sought to personalize treatment of patients with rheumatoid arthritis (RA), given their variable response to TNF inhibitors (TNFi). However, no genetic biomaker is yet sufficiently validated. Here, we report a validation study of 18 previously reported genetic biomarkers, including 11 from GWAS of response to TNFi. The validation was attempted in 581 patients with RA that had not been treated with biologic antirheumatic drugs previously. Their response to TNFi was evaluated at 3, 6 and 12 months in two ways: change in the DAS28 measure of disease activity, and according to the EULAR criteria for response to antirheumatic drugs. Association of these parameters with the genotypes, obtained by PCR amplification followed by single-base extension, was tested with regression analysis. These analyses were adjusted for baseline DAS28, sex, and the specific TNFi. However, none of the proposed biomarkers was validated, as none showed association with response to TNFi in our study, even at the time of assessment and with the outcome that showed the most significant result in previous studies. These negative results are notable because this was the first independent validation study for 12 of the biomarkers, and because they indicate that prudence is needed in the interpretation of the proposed biomarkers of response to TNFi even when they are supported by very low p values. The results also emphasize the requirement of independent replication for validation, and the need to search protocols that could increase reproducibility of the biomarkers of response to TNFi.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Artrite Reumatoide/genética , Marcadores Genéticos/genética , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Feminino , Genótipo , Humanos , Masculino , Pessoa de Meia-Idade , Reprodutibilidade dos Testes
12.
Sci Rep ; 8(1): 7342, 2018 May 09.
Artigo em Inglês | MEDLINE | ID: mdl-29743634

RESUMO

About 70 genetic studies have already addressed the need of biomarkers to predict the response of patients with rheumatoid arthritis (RA) to methotrexate (MTX) treatment. However, no genetic biomarker has yet been sufficiently validated. Here, we aimed to replicate a selection of 25 SNPs in the largest collection of patients up to date, which consisted of 915 patients treated with MTX. The change in disease activity (measured as ΔDAS28) from baseline was considered the primary outcome. In addition, response according to widely used criteria (EULAR) was taken as secondary outcome. We considered consistency between outcomes, P values accounting for the number of SNPs, and independence from potential confounders for interpretation of the results. Only the rs1801394 SNP in MTRR fulfilled the high association standards. Its minor allele was associated with less improvement than the major allele according to ΔDAS28 (p = 0.0016), and EULAR response (p = 0.004), with independence of sex, age, baseline DAS28, smoking, seropositivity, concomitant corticosteroid use or previous treatments. In addition, previous evidence suggests the association of this SNP with response to MTX in another autoimmune disease, juvenile idiopathic arthritis, and with high intracellular folate levels, which could contribute to poor response.

13.
Pharmacogenomics J ; 18(4): 539-545, 2018 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-29520081

RESUMO

Variability of response to treatment hinders successful management of rheumatoid arthritis (RA). Consequently, a clinical pharmacogenetics model for predicting response to methotrexate (CP-MTX) has been previously proposed that includes four clinical variables (disease activity, sex, the presence of rheumatoid factor and smoking status) and four SNPs (rs2236225, rs17602729, rs1127354, and rs2372536) in genes of the folate pathway. It showed good performance, but failed to attract attention, likely, in relation with lack of clear clinical benefit. Here, we have revised the value of the CP-MTX model directly addressing its clinical benefit by focusing on the expected benefit-cost of the predictions. In addition, our study included a much larger number of RA patients (n = 720) in MTX monotherapy than previous studies. Benefit of CP-MTX prediction was defined as the patients that would have received combination therapy as first treatment because they were correctly predicted as non-responders to MTX monotherapy. In contrast, cost of CP-MTX prediction was defined as the responder patients that were wrongly predicted as non-responders. Application of CP-MTX predictions to our patients showed a good benefit-cost relationship, with half of the 66.7% non-responders to MTX monotherapy rightly directed to alternative treatments (a benefit of 33.3%) at the cost of 8.5% wrongly predicted non-responders. These benefits-costs were consistent with reanalysis of the previously published studies. Therefore, predictions of CP-MTX showed a good benefit-cost relationship for informing MTX prescription.

14.
Reumatol Clin ; 2017 Sep 19.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-28935290

RESUMO

OBJECTIVE: Describe the objectives, methods and results of the first year of the new version of the Spanish registry of adverse events involving biological therapies and synthetic drugs with an identifiable target in rheumatic diseases (BIOBADASER III). METHODOLOGY: Multicenter prospective registry of patients with rheumatic inflammatory diseases being treated with biological drugs or synthetic drugs with an identifiable target in rheumatology departments in Spain. The main objective of BIOBADASER Phase III is the registry and analysis of adverse events; moreover, a secondary objective was added consisting of assessing the effectiveness by means of the registry of activity indexes. Patients in the registry are evaluated at least once every year and whenever they experience an adverse event or a change in treatment. The collection of data for phase iii began on 17 December 2015. RESULTS: During the first year, 35 centers participated. The number of patients included in this new phase in December 2016 was 2,664. The mean age was 53.7 years and the median duration of treatment was 8.1 years. In all, 40.4% of the patients were diagnosed with rheumatoid arthritis. The most frequent adverse events were infections and infestations. CONCLUSIONS: BIOBADASER Phase III has been launched to adapt to a changing pharmacological environment, with the introduction of biosimilars and small molecules in the treatment of rheumatic diseases. This new stage is adapted to the changes in the reporting of adverse events and now includes information related to activity scores.

15.
PLoS One ; 12(7): e0180144, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28672020

RESUMO

Patients with rheumatoid arthritis (RA) have an increased mortality rate that is associated with the presence of RA-specific autoantibodies in many studies. However, the relative role of rheumatoid factor (RF), anti-CCP antibodies and the most recently established RA-autoantibodies, directed against carbamylated proteins (anti-CarP antibodies), is unclear. Here, we have assessed the role of these three antibodies in 331 patients with established RA recruited from 2001 to 2009 and followed until November 2015. During this time, 124 patients died (37.5%). This death rate corresponds to a mortality rate 1.53 (95% CI 1.26 to 1.80) folds the observed in the reference population. We used for analysis of all-cause mortality the Cox proportional hazard regression model with adjustment for age, sex and smoking. It showed a trend for association with increased mortality of each of the three RA autoantibodies in antibody-specific analysis (hazards ratio (HR) from 1.37 to 1.79), but only the HR of the anti-CarP antibodies was significant (HR = 1.79, 95% CI 1.23 to 2.61, p = 0.002). In addition, the multivariate analysis that included all autoantibodies showed a marked decrease in the HR of RF and of anti-CCP antibodies, whereas the HR of anti-CarP remained significant. This increase was specific of respiratory system causes of death (HR = 3.19, 95% CI 1.52 to 6.69, p = 0.002). Therefore, our results suggest a specific relation of anti-CarP antibodies with the increased mortality in RA, and drive attention to their possible connection with respiratory diseases.


Assuntos
Artrite Reumatoide/imunologia , Autoanticorpos/imunologia , Adulto , Idoso , Artrite Reumatoide/mortalidade , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Espanha
16.
Lung Cancer ; 108: 217-221, 2017 06.
Artigo em Inglês | MEDLINE | ID: mdl-28625638

RESUMO

Lung cancer is the leading cause of cancer-related death worldwide. The most common type, non-small cell lung cancer (NSCLC), is further divided into two main types, squamous cell and non-squamous cell (which includes adenocarcinoma). Nivolumab, a fully human IgG4 programmed death-1 immune checkpoint inhibitor antibody, has shown not only an overall survival advantage when compared to docetaxel, but also a relatively good side-effect profile among patients with previously treated advanced squamous and non-squamous NSCLC. Psoriatic arthritis (PsA), a heterogeneous chronic inflammatory disease, has a wide clinical spectrum and a variable clinical course that affects mainly musculoskeletal structures, skin and nails. Here we report the second case to the best of our knowledge of PsA development during nivolumab therapy. It is important to note that arthritis activity decreased without nivolumab discontinuation with the use of naproxen and a low dose of corticosteroid. Furthermore, a minimal disease activity was achieved adding methotrexate to the treatment and antitumor therapy efficacy was not influenced (a partial response was documented after eight and 39 cycles of nivolumab). Rheumatic immune-related adverse events management is a challenge and a coordinated multidisciplinary management by medical oncologists, rheumatologists and immunologists will be mandatory in the near future.


Assuntos
Anticorpos Monoclonais/efeitos adversos , Antineoplásicos Imunológicos/efeitos adversos , Artrite Psoriásica/diagnóstico , Artrite Psoriásica/etiologia , Carcinoma Pulmonar de Células não Pequenas/complicações , Neoplasias Pulmonares/complicações , Anticorpos Monoclonais/uso terapêutico , Antineoplásicos Imunológicos/uso terapêutico , Artrite Psoriásica/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/patologia , Humanos , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Terapia de Alvo Molecular/efeitos adversos , Estadiamento de Neoplasias , Nivolumabe , Receptor de Morte Celular Programada 1/antagonistas & inibidores , Pele/patologia , Tomografia Computadorizada por Raios X , Resultado do Tratamento
17.
PLoS One ; 11(8): e0161141, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27537849

RESUMO

A large fraction of the patients with rheumatoid arthritis (RA) develop specific autoantibodies, which until recently were only of two types, rheumatoid factor (RF) and anti-citrullinated protein antibodies (ACPA). We aimed to replicate important findings about a recently described third type of specific autoantibodies, anti-carbamylated protein (anti-CarP) antibodies, because they have been described based only in the homemade ELISA from a single laboratory. Our study included 520 patients with established RA and 278 healthy controls of Spanish ancestry and it was done with an independently performed ELISA. The prevalence and pattern of environmental, clinical and genetic associations of the anti-CarP antibodies were similar to the previously described. Notably, the presence and titers of anti-CarP correlated with the presence and titers of ACPA, but the anti-CarP antibodies did not share the known genetic and exposure risk factors of the ACPA. In addition, anti-CarP antibodies were independently associated with a higher (10.5%) prevalence of bone erosions. The reproducibility of these characteristics across laboratories and European subpopulations, indicates the wide validity of the results and suggests that determination of anti-CarP antibodies could contribute to explain RA pathogenesis and identify clinically relevant patient subgroups.


Assuntos
Artrite Reumatoide/imunologia , Autoanticorpos/imunologia , Adulto , Artrite Reumatoide/patologia , Estudos de Casos e Controles , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Fatores de Risco
18.
Arthritis Res Ther ; 17: 233, 2015 Aug 29.
Artigo em Inglês | MEDLINE | ID: mdl-26330155

RESUMO

INTRODUCTION: DNA methylation is an epigenetic mechanism regulating gene expression that has been insufficiently studied in the blood of rheumatoid arthritis (RA) patients, as only T cells and total peripheral blood mononuclear cells (PBMCs) from patients with established RA have been studied and with conflicting results. METHOD: Five major blood cell subpopulations: T, B and NK cells, monocytes, and polymorphonuclear leukocytes, were isolated from 19 early RA patients and 17 healthy controls. Patient samples were taken before and 1 month after the start of treatment with methotrexate (MTX). Analysis included DNA methylation with high-performance liquid chromatography-electrospray ionization-tandem mass spectrometry-selected reaction monitoring (HPLC-ESI-MS/MS-SRM) and expression levels of seven methylation-specific enzymes by quantitative polymerase chain reaction (qPCR). RESULTS: Disease-modifying anti-rheumatic drug (DMARD)-naïve early RA patients showed global DNA hypomethylation in T cells and monocytes, together with a lower expression of DNA methyltrasnferase 1 (DNMT1), the maintenance DNA methyltransferase, which was also decreased in B cells. Furthermore, significantly increased expression of ten-eleven translocation1 (TET1), TET2 and TET3, enzymes involved in demethylation, was found in monocytes and of TET2 in T cells. There was also modest decreased expression of DNMT3A in B cells and of growth arrest and DNA-damage-inducible protein 45A (GADD45A) in T and B cells. Treatment with MTX reverted hypomethylation in T cells and monocytes, which were no longer different from controls, and increased global methylation in B cells. In addition, DNMT1 and DNMT3A showed a trend to reversion of their decreased expression. CONCLUSIONS: Our results confirm global DNA hypomethylation in patients with RA with specificity for some blood cell subpopulations and their reversal with methotrexate treatment. These changes are accompanied by parallel changes in the levels of enzymes involved in methylation, suggesting the possibility of regulation at this level.


Assuntos
Artrite Reumatoide/tratamento farmacológico , Linfócitos B/efeitos dos fármacos , Metilação de DNA/efeitos dos fármacos , Leucócitos Mononucleares/efeitos dos fármacos , Metotrexato/uso terapêutico , Linfócitos T/efeitos dos fármacos , Adulto , Idoso , Antirreumáticos/uso terapêutico , Artrite Reumatoide/sangue , Artrite Reumatoide/genética , Linfócitos B/metabolismo , Proteínas de Ciclo Celular/genética , Cromatografia Líquida de Alta Pressão , DNA (Citosina-5-)-Metiltransferase 1 , DNA (Citosina-5-)-Metiltransferases/genética , Proteínas de Ligação a DNA/genética , Dioxigenases/genética , Feminino , Regulação da Expressão Gênica/efeitos dos fármacos , Humanos , Leucócitos Mononucleares/metabolismo , Masculino , Pessoa de Meia-Idade , Oxigenases de Função Mista , Proteínas Nucleares/genética , Proteínas Proto-Oncogênicas/genética , Reação em Cadeia da Polimerase Via Transcriptase Reversa , Espectrometria de Massas por Ionização por Electrospray , Linfócitos T/metabolismo , Fatores de Tempo
19.
Pharmacogenet Genomics ; 25(9): 432-43, 2015 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-26111149

RESUMO

BACKGROUND: Rheumatoid arthritis (RA) is a chronic autoimmune disease that arises as a result of the interaction between genetic and environmental factors. A growing body of research suggests that genetic variants within immune-related genes can influence the risk of developing the disease and affect drug response. MATERIALS AND METHODS: To test this hypothesis, we carried out a comprehensive two-stage case-control study in a White population of 1239 White RA patients and 1229 healthy controls to investigate whether 49 single nucleotide polymorphisms within or near 17 immune-related genes modulate the risk of developing RA and antitumor necrosis factor (anti-TNF) drug response. RESULTS: Logistic regression analyses showed that carriers of the IL4rs2070874T and IL4rs2243250T and IL8RBrs1126580A alleles or the IL8RBrs2230054C/C genotype had a significantly increased risk of developing RA [odds ratio (OR)=1.37, 95% confidence interval (CI) 1.13-1.67, P=0.0016; OR=1.24, 95% CI 1.03-1.49, P=0.020; OR=1.23, 95% CI 1.08-1.41, P=0.002 and OR=1.19, 95% CI 1.04-1.36, P=0.01, respectively]. The association of the IL4 variants was further supported by a meta-analysis including 7150 individuals (P =0.0010), whereas the involvement of the IL8RB locus in determining the susceptibility to RA was also supported by gene-gene interaction analyses that identified significant two-locus and three-locus interaction models including IL8RB variants that act synergistically to increase the risk of the disease (P=0.014 and 0.018). Interestingly, we also found that patients harbouring the IFNGrs2069705C allele showed a significantly better response to anti-TNF drugs than those patients carrying the wild-type allele (P=0.0075). CONCLUSIONS: Our data suggest that IL4 and IL8RB loci may have a small-effect genetic impact on the risk of developing RA, whereas IFNG might be involved in modulating the response to anti-TNF drugs.


Assuntos
Artrite Reumatoide/genética , Imunossupressores/administração & dosagem , Interleucina-4/genética , Polimorfismo de Nucleotídeo Único , Receptores de Interleucina-8B/genética , Adulto , Idoso , Artrite Reumatoide/tratamento farmacológico , Estudos de Casos e Controles , Grupo com Ancestrais do Continente Europeu/genética , Feminino , Predisposição Genética para Doença , Humanos , Imunossupressores/farmacologia , Interferon gama/antagonistas & inibidores , Interferon gama/genética , Masculino , Pessoa de Meia-Idade , Análise de Regressão
20.
Pharmacogenet Genomics ; 25(7): 323-33, 2015 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-25850964

RESUMO

BACKGROUND: Recent research suggests that genetic variants in the tumor necrosis factor receptor 2 (TNFRSF1B) gene may have an impact on susceptibility to rheumatoid arthritis (RA) and drug response. The present population-based case-control study was carried out to evaluate whether 5 tagging single-nucleotide polymorphisms (SNPs) within the TNFRSF1B gene are associated with the risk of RA and response to antitumor necrosis factor (TNF) drugs. METHODS: The study population included 1412 RA patients and 1225 healthy controls. A subset of 596 anti-TNF-naive RA patients was selected to assess the association of TNFRSF1B SNPs and drug response according to the EULAR response criteria. RESULTS: We found that carriers of the TNFRSF1Brs3397C allele had a significantly increased risk of developing RA (P=0.0006). Importantly, this association remained significant after correction for multiple testing. We also confirmed the lack of association of the TNFRSF1Brs1061622 SNP with the risk of RA in the single-SNP analysis (P=0.89), but also through well-powered meta-analyses (PDOM=0.67 and PREC=0.37, respectively). In addition, our study showed that carriers of the TNFRSF1Brs3397C/C, TNFRSF1Brs1061622G/G, and TNFRSF1Brs1061631A/A genotypes had an increased risk of having a worse response to anti-TNF drugs at the level of P less than 0.05 (P=0.014, 0.0085 and 0.028, respectively). We also observed that, according to a log-additive model, carriers of the TNFRSF1Brs3397C or TNFRSF1Brs1061622G alleles showed an increased risk of having worse response to anti-TNF medications (P=0.018 and 0.0059). However, the association of the TNFRSF1Brs1061622 SNP only reached marginal significance after correction for multiple testing according to a log-additive model (P=0.0059) and it was not confirmed through a meta-analysis (PDOM=0.12). CONCLUSION: Our results suggest that the TNFRSF1Brs3397 variant may play a role in modulating the risk of RA, but does not provide strong evidence of an impact of TNFRSF1B variants in determining response to anti-TNF drugs.


Assuntos
Antirreumáticos/uso terapêutico , Artrite Reumatoide/tratamento farmacológico , Artrite Reumatoide/genética , Receptores Tipo II do Fator de Necrose Tumoral/genética , Fator de Necrose Tumoral alfa/antagonistas & inibidores , Adulto , Idoso , Artrite Reumatoide/imunologia , Estudos de Casos e Controles , Feminino , Estudos de Associação Genética , Predisposição Genética para Doença , Humanos , Masculino , Pessoa de Meia-Idade , Polimorfismo de Nucleotídeo Único
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