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1.
Rev. esp. podol ; 34(2): 99-103, 2023. tab
Artigo em Espanhol | IBECS | ID: ibc-229377

RESUMO

Objetivos: Conocer la percepción de los pacientes sobre el dolor y localización en los pies debido al lupus eritematoso sistémico (LES). Identificar los consejos y cuidados recibidos sobre los problemas de sus pies y calzado, y qué profesional los proporcionó. Conocer si los pacientes usaban ortesis plantares o calzado ortopédico. Pacientes y métodos: Estudio observacional, descriptivo, transversal, realizado entre marzo y mayo de 2021 sobre 47 personas con LES. Cinco participantes se excluyeron por no completar el cuestionario, siendo 42 los participantes después de obtener su consentimiento informado. Se confeccionó una hoja de recogida de datos para alcanzar los objetivos. Resultados: El 47.6 % de los pacientes presentaba dolor en los pies atribuido al LES durante la entrevista, con un promedio de dolor de 4.4 (DE = 2.97). El dolor se localizó principalmente en el antepié y los dedos. El 31 % y el 21.4 % recibieron cuidados o consejos para sus problemas en los pies respectivamente, siendo podólogos y reumatólogos los principales prescriptores. El 31 % recibió consejos sobre el calzado adecuado, proporcionados principalmente por podólogos y reumatólogos. El 33.33 % utilizaba ortesis plantares, siendo mayormente prescritas por reumatólogos y podólogos. Solo un 4.8 % utilizaba calzado ortopédico o hecho a medida. Conclusiones: Se encontró una prevalencia significativa de dolor en los pies atribuido al LES, siendo el antepié y los dedos las áreas más afectadas. Un porcentaje limitado de pacientes recibió cuidados y consejos para sus problemas en los pies, y el uso de ortesis plantares y calzado ortopédico fue poco común (AU)


Objectives: To know the perception of patients about pain and location in the feet due to Systemic Lupus Erythematosus (SLE). Identify the advice and care received about the problems of your feet and footwear, and which professional provided it. To know if patients wore plantar orthoses or orthopedic shoes. Patients and methods: Observational, descriptive, cross-sectional study, conducted between March and May 2021 on 47 people with SLE. Five participants were excluded for not completing the questionnaire, with 42 participants after obtaining their informed consent. A data collection sheet was prepared to achieve the objectives. Results: A total of 47.6 % of patients had foot pain attributed to SLE during the interview, with an average pain of 4.4 (SD = 2.97). The pain was mainly localized to the forefoot and fingers. Thirtyone (31 %) and 21.4 % received care or advice for their foot problems respectively, with podiatrists and rheumatologists being the main prescribers. Also, 31 % received advice on proper footwear, provided mainly by podiatrists and rheumatologists. One third (33,33 %) used plantar orthoses, being mostly prescribed by rheumatologists and podiatrists. Only 4.8 % used orthopedic or custom-made shoes.Conclusions: A significant prevalence of foot pain attributed to SLE was found, with the forefoot and toes being the most affected areas. A limited percentage of patients received care and advice for their foot problems, and the use of plantar orthotics and orthopedic footwear was uncommon (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Dor/fisiopatologia , Aparelhos Ortopédicos , Órtoses do Pé , Lúpus Eritematoso Sistêmico/fisiopatologia , Estudos Transversais
2.
Mediators Inflamm ; 2022: 8447675, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35462789

RESUMO

Objective: Identifying new markers of juvenile systemic lupus erythematosus (JSLE) is critical event to predict patient stratification and prognosis. The aim of the present study is to analyze alteration of urinary protein expression and screen potential valuable biomarkers in juvenile systemic lupus erythematosus (JSLE). Methods: The urine was collected from the patients with or without JSLE and detected by mass spectrometry to analyze proteomic changes. ELISA was used to verify the Vitronectin (VTN) changes in a new set of patients. The clinical correlation was performed to analyze between VTN and clinical pathological parameters. WB and ELISA were used to analyze VTN-mediated cell pyroptosis. Results: Herein, we have identified a group of 105 differentially expressed proteins with ≥1.3-fold upregulation or ≤0.77-fold downregulation in JSLE patients. These proteins were involved in several important biological processes, including acute phase inflammatory responses, complement activation, hemostasis, and immune system regulation through Gene Ontology and functional enrichment analysis. Interestingly, urinary ephrin type-A receptor 4 (EPHA4) and VTN were significantly reduced in both inactive and active JSLE patients, and VTN treatment in THP-1 derived macrophages led to a significant increased cell pyroptosis by activation of Nod-like receptor family protein 3 (NLRP3) inflammasomes, resulting in caspase-1 activation, cleaved gasdermin D (GSDMD), and IL-18 secretion. Most importantly, the urinary VTN was also linearly correlated with clinical characteristics of JSLE, implying that VTN could be a specific diagnostic biomarker to distinguish inactive and active JSLE. Conclusion: This study provided a novel role of VTN in pyroptosis in JSLE through the urinary proteomic profile for JSLE, which could be a nonintrusive monitoring strategy in clinical diagnosis.


Assuntos
Lúpus Eritematoso Sistêmico , Piroptose , Vitronectina , Biomarcadores/urina , Humanos , Lúpus Eritematoso Sistêmico/genética , Lúpus Eritematoso Sistêmico/fisiopatologia , Lúpus Eritematoso Sistêmico/urina , Espectrometria de Massas , Proteína 3 que Contém Domínio de Pirina da Família NLR/urina , Proteômica , Piroptose/fisiologia , Receptor EphA4/urina , Vitronectina/urina
3.
Pediatr Rheumatol Online J ; 20(1): 4, 2022 Jan 24.
Artigo em Inglês | MEDLINE | ID: mdl-35073942

RESUMO

BACKGROUND: Growth impairment is the most common complication in patients with childhood-onset systemic lupus erythematosus (cSLE). There are limited data on risk factors affecting growth development in Asian patients with cSLE. This study aimed to determine the predictors of growth impairment in such patients. METHODS: All SLE patients aged < 15 years diagnosed in Ramathibodi Hospital between 2006 and 2016 were enrolled in a retrospective cohort study. Baseline characteristics, including height, weight, clinical manifestations, disease activity score, and medications, were reviewed from medical records from the time at diagnosis to achievement of final adult height (FAH). Age at menarche in girls, adult voice appearance in boys, and parental height were collected by interview. Parent-adjusted FAH (PaFAH) Z-score was calculated as the difference between FAH Z-score for chronological age of the patients and their mid parental height-Z score. The patients were classified into two groups: (1) normal growth (PaFAH Z-score ≥ - 1.5, 2) growth impairment (PaFAH Z-score < - 1.5). Descriptive statistics and logistic regression analysis were used to analyze the data. RESULTS: Of 106 cSLE patients, 19 (18%) were male and 87 (82%) were female. The mean age at study enrollment was 20.6 ± 3.0 years, mean age at diagnosis 12.1 ± 2.3 years, and mean age at achievement of FAH 17.5 ± 1.9 years. Growth impairment was found in 23.6% of patients (52.6% in boys and 17.2% in girls). Predictors of growth impairment were male sex, duration of disease before menarche in girls and adult voice appearance in boys, and cumulative corticosteroid dose (prednisolone equivalent) ≥230 mg/kg received before the late phase of puberty, with odds ratios of 7.07 (95%CI 2.11-23.74), 1.26 (95% CI 1.02-1.56), and 6.99 (95%CI 1.63-30.02), respectively. CONCLUSIONS: One-fourth of cSLE patients developed growth impairment, which mostly affected male patients. Longer duration of disease before the late phase of puberty and corticosteroid dose ≥230 mg/kg received before the late phase of puberty were factors predictive of growth impairment.


Assuntos
Estatura , Transtornos do Crescimento/fisiopatologia , Lúpus Eritematoso Sistêmico/fisiopatologia , Adolescente , Adulto , Idade de Início , Estudos de Coortes , Feminino , Humanos , Masculino , Estudos Retrospectivos , Fatores de Risco , Fatores Sexuais , Adulto Jovem
4.
Emerg Med Clin North Am ; 40(1): 179-191, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34782087

RESUMO

Systemic lupus erythematosus and rheumatoid arthritis are just 2 of several autoimmune connective tissue diseases that are primarily chronic in nature but can present to the emergency department by virtue of an acute exacerbation of disease. Beyond an acute exacerbation of disease, their predilection for invading multiple organ systems lends itself to the potential for patients presenting to the emergency department with either a single or isolated symptom or a myriad of signs and/or symptoms indicative of a degree of disease complexity and severity that warrant timely recognition and resuscitation.


Assuntos
Artrite Reumatoide/fisiopatologia , Lúpus Eritematoso Sistêmico/fisiopatologia , Artrite Reumatoide/diagnóstico , Artrite Reumatoide/terapia , Doenças Autoimunes/complicações , Doenças Autoimunes/diagnóstico , Humanos , Lúpus Eritematoso Sistêmico/diagnóstico , Lúpus Eritematoso Sistêmico/terapia
5.
Int J Rheum Dis ; 25(1): 76-82, 2022 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-34796660

RESUMO

AIM: To investigate the predictive factors of pulmonary arterial hypertension (PAH) in systemic lupus erythematosus (SLE) patients. METHOD: This chart review study included 408 SLE patients. We defined PAH as 2 consecutive systolic pulmonary arterial pressure (PAP) values ≥40 mm Hg by echocardiography. Demographic characteristics, clinical symptoms, autoantibodies, and laboratory tests were studied. RESULTS: Thirty-four patients in the SLE/PAH+ group and 374 patients in the SLE/PAH- group were analyzed. The prevalence of PAH in SLE is 8.3% in this study. The occurrences of interstitial pneumonitis, polyserositis and myocardial damage were higher in the SLE/PAH+ group (P = .001, P = .033 and P < .001, respectively). The occurrence of anti-double-stranded DNA and anti-ribosomal RNA protein (anti-rRNP) antibodies were lower in the SLE/PAH+ group (P = .003, .010). Positive rates of anti-Sjögren's syndrome antigen A (anti-SSA)/Ro52 antibodies and anti-SSB antibodies were higher in the SLE/PAH+ group (P = .046, .021). C-reactive protein and immunoglobin G (IgG) were higher in the SLE/PAH+ group (P = .009, .005). Ejection fraction and SLE disease activity index between the 2 groups had no differences. Multivariable logistic regression indicated that interstitial pneumonitis, myocardial damage and high IgG are predictive factors for SLE-associated PAH patients. CONCLUSION: From this study, we found that interstitial pneumonitis, myocardial damage, and high IgG were predictive factors of PAH in SLE patients.


Assuntos
Lúpus Eritematoso Sistêmico/fisiopatologia , Hipertensão Arterial Pulmonar/etiologia , Adulto , Anticorpos Antinucleares/sangue , China , Feminino , Humanos , Lúpus Eritematoso Sistêmico/epidemiologia , Masculino , Pessoa de Meia-Idade , Hipertensão Arterial Pulmonar/diagnóstico , Hipertensão Arterial Pulmonar/epidemiologia , Estudos Retrospectivos , Fatores de Risco
6.
Arthritis Care Res (Hoboken) ; 74(2): 199-207, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-32976694

RESUMO

OBJECTIVE: The aim of this study was to examine the impact of timing of a childhood-onset systemic lupus erythematosus (SLE) diagnosis relative to menarchal status, on final height, accounting for disease-associated factors. METHODS: We conducted a cohort study of female patients age <18 years at childhood-onset SLE diagnosis, followed at a tertiary care pediatric center from July 1982 to March 2016 and restricted to patients with documented age of menarche and final height. We compared final height between patients diagnosed pre- and postmenarche. We tested the association of the timing of childhood-onset SLE diagnosis with final height, adjusted for ethnicity, in linear regression models. We performed subgroup analyses of patients with growth during follow-up, additionally adjusting for average daily corticosteroid dose and disease activity. RESULTS: Of 401 female childhood-onset SLE patients in the study, 115 patients (29%) were diagnosed premenarche and 286 (71%) postmenarche. Patients diagnosed premenarche were older at menarche compared with patients diagnosed postmenarche (mean ± SD age 13.5 ± 1.4 versus 12.5 ± 1.3 years; P < 0.001). The mean ± SD final height for girls diagnosed postmenarche (161.4 ± 6.9 cm) was greater than for those diagnosed premenarche (158.8 ± 7.3 cm; P = 0.001). In regression analysis, those diagnosed postmenarche were significantly taller than those diagnosed premenarche, as adjusted for ethnicity and disease severity (mean ± SD ß = 2.6 ± 0.7 cm; P = 0.0006). CONCLUSION: In this large cohort study of girls with childhood-onset SLE, patients diagnosed postmenarche achieved a taller final height than those diagnosed premenarche, even after accounting for ethnicity and disease severity.


Assuntos
Estatura , Lúpus Eritematoso Sistêmico/fisiopatologia , Menarca , Adolescente , Idade de Início , Criança , Estudos de Coortes , Feminino , Humanos , Lúpus Eritematoso Sistêmico/etnologia , Ontário/epidemiologia
7.
Sleep Breath ; 26(1): 429-441, 2022 03.
Artigo em Inglês | MEDLINE | ID: mdl-34032968

RESUMO

BACKGROUND: Currently, there is no consistent understanding of the relationship between depression and sleep quality in patients with systemic lupus erythematosus (SLE). This study aimed to explore the correlation between depression and sleep quality in SLE patients. METHODS: Five English (PubMed, Web of Science, EMBASE, Cochrane Library, and CINAHL) databases were systematically searched from inception to January 12, 2021. Two authors independently screened publications and extracted data according to set inclusion and exclusion criteria. Statistical analyses were performed with STATA 16.0. Data were pooled using a random-effects model. RESULTS: A total of 9 identified studies matched the inclusion criteria, reporting on 514 patients with SLE in the analysis. A moderate correlation of depression with sleep quality was found (pooled r = 0.580 [0.473, 0.670]). Compared to good sleepers, patients with SLE and poor sleep quality had higher levels of depression (standardized mean difference = - 1.28 [- 1.87, - 0.69]). Depression was associated with subjective sleep quality (r = 0.332 [0.009, 0.592]), sleep latency (r = 0.412 [0.101, 0.649]), sleep disturbances (r = 0.405 [0.094, 0.645]), daytime dysfunction (r = 0.503 [0.214, 0.711]), the four dimensions of Pittsburgh Sleep Quality Index (PSQI), while no significant correlation was found in the other three PSQI dimensions. CONCLUSION: Depression had a moderate correlation with sleep quality in patients with SLE. Patients with poor sleep quality tended to have higher level of depression than that of good sleepers. Awareness of the correlation may help rheumatology physicians and nurses to assess and prevent depression and improve sleep quality in patients with SLE.


Assuntos
Depressão/etiologia , Lúpus Eritematoso Sistêmico/complicações , Lúpus Eritematoso Sistêmico/fisiopatologia , Qualidade do Sono , Correlação de Dados , Humanos
8.
Arthritis Rheumatol ; 74(2): 284-294, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34347939

RESUMO

OBJECTIVE: To evaluate seroreactivity and disease flares after COVID-19 vaccination in a multiethnic/multiracial cohort of patients with systemic lupus erythematosus (SLE). METHODS: Ninety SLE patients and 20 healthy controls receiving a complete COVID-19 vaccine regimen were included. IgG seroreactivity to the SARS-CoV-2 spike receptor-binding domain (RBD) and SARS-CoV-2 microneutralization were used to evaluate B cell responses; interferon-γ (IFNγ) production was measured by enzyme-linked immunospot (ELISpot) assay in order to assess T cell responses. Disease activity was measured by the hybrid SLE Disease Activity Index (SLEDAI), and flares were identified according to the Safety of Estrogens in Lupus Erythematosus National Assessment-SLEDAI flare index. RESULTS: Overall, fully vaccinated SLE patients produced significantly lower IgG antibodies against SARS-CoV-2 spike RBD compared to fully vaccinated controls. Twenty-six SLE patients (28.8%) generated an IgG response below that of the lowest control (<100 units/ml). In logistic regression analyses, the use of any immunosuppressant or prednisone and a normal anti-double-stranded DNA antibody level prior to vaccination were associated with decreased vaccine responses. IgG seroreactivity to the SARS-CoV-2 spike RBD strongly correlated with the SARS-CoV-2 microneutralization titers and correlated with antigen-specific IFNγ production determined by ELISpot. In a subset of patients with poor antibody responses, IFNγ production was similarly diminished. Pre- and postvaccination SLEDAI scores were similar in both groups. Postvaccination flares occurred in 11.4% of patients; 1.3% of these were severe. CONCLUSION: In a multiethnic/multiracial study of SLE patients, 29% had a low response to the COVID-19 vaccine which was associated with receiving immunosuppressive therapy. Reassuringly, severe disease flares were rare. While minimal protective levels remain unknown, these data suggest that protocol development is needed to assess the efficacy of booster vaccination.


Assuntos
Antirreumáticos/uso terapêutico , Vacinas contra COVID-19/uso terapêutico , COVID-19/prevenção & controle , Hospedeiro Imunocomprometido , Imunogenicidade da Vacina , Imunossupressores/uso terapêutico , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Vacina de mRNA-1273 contra 2019-nCoV/uso terapêutico , Ad26COVS1/uso terapêutico , Adulto , Anticorpos Antivirais/imunologia , Linfócitos B/imunologia , Vacina BNT162/uso terapêutico , Vacinas contra COVID-19/imunologia , Estudos de Casos e Controles , Estudos de Coortes , ELISPOT , Feminino , Glucocorticoides/uso terapêutico , Humanos , Imunoglobulina G/imunologia , Interferon gama/imunologia , Lúpus Eritematoso Sistêmico/imunologia , Lúpus Eritematoso Sistêmico/fisiopatologia , Masculino , Pessoa de Meia-Idade , Testes de Neutralização , Prednisona/uso terapêutico , SARS-CoV-2 , Glicoproteína da Espícula de Coronavírus/imunologia , Exacerbação dos Sintomas
9.
Maturitas ; 154: 25-30, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34736577

RESUMO

Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by chronic and systemic inflammation affecting multiple organ systems, including an increased risk of cardiovascular disease due to the SLE-associated hyperinflammatory state. SLE shows a strong female predominance, suggesting a potential role of sex hormones in the pathogenesis of the disease. Evidence suggests an earlier age of menopause among women with SLE, despite mixed findings regarding other markers of ovarian aging. In healthy populations, the menopausal transition is associated with important physiologic changes resulting in increased cardiometabolic risk and risk of osteoporosis. Thus, women with SLE who experience the inflammatory effects of the autoimmune condition combined with the (potentially earlier) menopausal transition may represent a particularly vulnerable group of individuals during a particular window of time. Little is known, however, about strategies for cardiovascular risk or bone loss mitigation in women with SLE during the menopausal transition. Further, despite lack of knowledge regarding the burden of menopausal symptoms in women with SLE, existing recommendations provide only cautionary guidance for the use of hormone replacement therapy to address menopausal symptoms in this population. Importantly, the data regarding both SLE and menopause-associated cardiovascular and osteoporotic risk demonstrate the critical need for additional research to identify the type and timing of treatments or interventions needed to best mitigate this increased risk.


Assuntos
Lúpus Eritematoso Sistêmico/complicações , Menopausa/fisiologia , Fatores Etários , Idoso , Doenças Cardiovasculares/etiologia , Feminino , Terapia de Reposição Hormonal , Humanos , Lúpus Eritematoso Sistêmico/fisiopatologia , Menopausa/imunologia , Pessoa de Meia-Idade , Índice de Gravidade de Doença
11.
Front Immunol ; 12: 729672, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34721392

RESUMO

Aims: Higher body mass and adiposity represent independent contributors to the systemic low-grade inflammatory state often observed in patients with systemic lupus erythematosus (SLE). This study assessed the role of physical fitness in the association of body mass and adiposity with inflammation in women with SLE. Methods: A total of 77 women with SLE were included in this cross-sectional study. We obtained body mass index, waist-to-height ratio, and body fat percentage as indicators of body mass and adiposity. Inflammation was assessed through Serum levels of C-reactive protein, interleukin 6, and leptin. Cardiorespiratory fitness was assessed with the 6-minute walk test, range of motion with the back-scratch test, and muscular strength with handgrip dynamometry. Results: Cardiorespiratory fitness attenuated the association of both body mass index and body fat percentage with interleukin 6 (all, P<0.05). Range of motion attenuated the association of body mass index with interleukin 6 (P<0.05) and the association of body fat percentage with C-reactive protein (P<0.05). These interactions indicated that higher fitness was associated with a lower increase in inflammation per unit increase of body mass or adiposity. Muscular strength showed a non-significant trend to attenuate the association of body fat percentage with interleukin 6 (P=0.057) but potentiated the association of body fat percentage with leptin (P<0.05). Conclusion: These findings suggest that higher levels of cardiorespiratory fitness and range of motion might attenuate the impact of higher body mass and adiposity on inflammation in women with SLE. The role of muscular strength requires further investigation.


Assuntos
Adiposidade , Índice de Massa Corporal , Aptidão Cardiorrespiratória , Mediadores da Inflamação/sangue , Inflamação/fisiopatologia , Lúpus Eritematoso Sistêmico/fisiopatologia , Adulto , Biomarcadores/sangue , Proteína C-Reativa/análise , Estudos Transversais , Tolerância ao Exercício , Feminino , Estado Funcional , Força da Mão , Humanos , Inflamação/sangue , Inflamação/diagnóstico , Interleucina-6/sangue , Leptina/sangue , Lúpus Eritematoso Sistêmico/sangue , Lúpus Eritematoso Sistêmico/diagnóstico , Pessoa de Meia-Idade , Amplitude de Movimento Articular , Fatores Sexuais
12.
Int J Rheum Dis ; 24(12): 1510-1519, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34716670

RESUMO

BACKGROUND: The adjusted-Global Antiphospholipid Syndrome Score (aGAPSS) has been validated and used to predict antiphospholipid antibodies (aPL) related to vascular thrombosis (VT). OBJECTIVE: To validate aGAPSS for predicted aPL-related VT and pregnancy complications (PC) in Thai systemic lupus erythematosus (SLE) patients. METHODS: A cross-sectional study was performed among Thai SLE patients with clinical manifestations; history of VT and PC, cardiovascular risk factors, and aPL profiles were collected. The aGAPSS was calculated from the sum of the risk factors (hyperlipidemia = 3.0, arterial hypertension = 1.0, anti-cardiolipin antibody = 5.0, anti-b2 glycoprotein I antibody = 4.0, and lupus anticoagulant = 4.0). RESULTS: Of 132 SLE patients, 12 (9.1%) had VT and 5 (4.1%) had PC. When comparing the aGAPSS (median; interquartile range [IQR]) of patients with events (VT and/or PC) (6.5; IQR 3.3-9.0), VT (8.0; IQR 4.0-9.0), arterial thrombosis (3.5; IQR 1.0-5.8), and PC (9.0; IQR 8.0-11.5), and the aGAPSS of patients without an event (3.0; IQR 0-4.0), aGAPSS of patients with events was significantly higher, except in patients with arterial thrombosis. An aGAPSS of 4.5 or more was associated with risk of aPL-related VT (sensitivity 71.4%, specificity 76.7%), and an aGAPSS of 6.0 or more was associated with risk of aPL-PC (sensitivity 100%, specificity 84.0%). CONCLUSION: The aGAPSS could predict the risk of aPL-PC and aPL-related VT in Thai SLE patients.


Assuntos
Lúpus Eritematoso Sistêmico/complicações , Trombose Venosa/diagnóstico , Idoso , Anticorpos Antifosfolipídeos/sangue , Síndrome Antifosfolipídica , Biomarcadores/sangue , Estudos Transversais , Feminino , Humanos , Lúpus Eritematoso Sistêmico/fisiopatologia , Pessoa de Meia-Idade , Gravidez , Complicações na Gravidez , Curva ROC , Medição de Risco , Tailândia , Trombose Venosa/etiologia
13.
Cancer Res ; 81(23): 5977-5990, 2021 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-34642183

RESUMO

The relationship between cancer and autoimmunity is complex. However, the incidence of solid tumors such as melanoma has increased significantly among patients with previous or newly diagnosed systemic autoimmune disease (AID). At the same time, immune checkpoint blockade (ICB) therapy of cancer induces de novo autoinflammation and exacerbates underlying AID, even without evident antitumor responses. Recently, systemic lupus erythematosus (SLE) activity was found to drive myeloid-derived suppressor cell (MDSC) formation in patients, a known barrier to healthy immune surveillance and successful cancer immunotherapy. Cross-talk between MDSCs and macrophages generally drives immune suppressive activity in the tumor microenvironment. However, it remains unclear how peripheral pregenerated MDSC under chronic inflammatory conditions modulates global macrophage immune functions and the impact it could have on existing tumors and underlying lupus nephritis. Here we show that pathogenic expansion of SLE-generated MDSCs by melanoma drives global macrophage polarization and simultaneously impacts the severity of lupus nephritis and tumor progression in SLE-prone mice. Molecular and functional data showed that MDSCs interact with autoimmune macrophages and inhibit cell surface expression of CD40 and the production of IL27. Moreover, low CD40/IL27 signaling in tumors correlated with high tumor-associated macrophage infiltration and ICB therapy resistance both in murine and human melanoma exhibiting active IFNγ signatures. These results suggest that preventing global macrophage reprogramming induced by MDSC-mediated inhibition of CD40/IL27 signaling provides a precision melanoma immunotherapy strategy, supporting an original and advantageous approach to treat solid tumors within established autoimmune landscapes. SIGNIFICANCE: Myeloid-derived suppressor cells induce macrophage reprogramming by suppressing CD40/IL27 signaling to drive melanoma progression, simultaneously affecting underlying autoimmune disease and facilitating resistance to immunotherapy within preexisting autoimmune landscapes.


Assuntos
Autoimunidade , Antígenos CD40/metabolismo , Interleucina-27/metabolismo , Lúpus Eritematoso Sistêmico/fisiopatologia , Macrófagos/patologia , Melanoma/patologia , Células Supressoras Mieloides/patologia , Animais , Imunoterapia , Macrófagos/imunologia , Macrófagos/metabolismo , Melanoma/imunologia , Melanoma/metabolismo , Camundongos , Camundongos Endogâmicos C57BL , Camundongos Knockout , Células Supressoras Mieloides/imunologia , Células Supressoras Mieloides/metabolismo , Microambiente Tumoral
14.
Andes Pediatr ; 92(3): 375-381, 2021 Jun.
Artigo em Inglês, Espanhol | MEDLINE | ID: mdl-34479243

RESUMO

INTRODUCTION: Systemic Lupus Erythematosus (SLE) is an autoimmune, multisystemic, chronic disease that is diffi cult to diagnose. Few studies describe its features in the South American pediatric population. Ob jective: to describe clinical and laboratory features, course, and treatment of childhood-onset SLE patients and their transition into adulthood. PATIENTS AND METHOD: Retrospective study of patients diagnosed with SLE in a Children's Rheumatology Unit of a hospital in Santiago de Chile between 2001 and 2017. Epidemiological, clinical, laboratory, treatment received, evolution, complications and hospitalizations data were registered. It was considered severe SLE the cases with renal or cen tral nervous system involvement. RESULTS: 31 patients were studied, all with the disease longer than 6 months. The female/male ratio was 5.2/1. The median age of presentation was 12.5 years. In 94% of cases, the diagnostic delay was less than 6 months. The most frequent clinical characteristics were arthritis (87%), skin lesions (58%), and renal involvement (58%). The most frequent laboratory findings were positive antinuclear antibodies (100%), positive anti-dsDNA antibodies (74%), and hypocomplementemia (71%). Corticosteroids, hydroxychloroquine, and mycophenolate were the most commonly used drugs. There was no mortality in this group. 97% of patients had "satisfactory check-ups" during pediatric care and 59% in the adult one. The transition was scheduled in most cases. CONCLUSIONS: The results of this study were similar to other publications and is one of the few studies describing SLE in the Chilean pediatric population. In addition, it describes the transition into adulthood.


Assuntos
Lúpus Eritematoso Sistêmico/diagnóstico , Lúpus Eritematoso Sistêmico/terapia , Transição para Assistência do Adulto , Adolescente , Adulto , Idade de Início , Criança , Pré-Escolar , Chile , Diagnóstico Tardio , Progressão da Doença , Diagnóstico Precoce , Feminino , Seguimentos , Humanos , Lúpus Eritematoso Sistêmico/fisiopatologia , Masculino , Estudos Retrospectivos , Adulto Jovem
15.
J Reprod Immunol ; 148: 103370, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34492566

RESUMO

Systemic lupus erythematosus (SLE) is a chronic systemic autoimmune disease characterized by generation of autoantibodies and severe damage of various organs. The hormonal changes associated with pregnancy and especially estrogen might lead to damage of reproductive function and ovarian quality. We employed a pristane-induced lupus model of Balb/c mice which resembles human lupus in an attempt to follow oogenesis disruption during the disease progression. The integrity of cytoskeletal and chromatin structures was estimated in oocytes derived by hormonally stimulated ovulation in lupus mice and the results were compared with those from healthy mice. Chromatin, tubulin and actin structures in oocytes were detected by Hoechst 33258, anti-alpha-tubulin antibody and rhodamine-labeled phalloidin, respectively. All available meiotic spindles were analyzed - in immature (metaphase I) and mature oocytes (metaphase II). The total number of mature oocytes obtained from lupus mice was lower compared to healthy controls. The maturation rate was 9.8 % for lupus mice, 12.7 % for 7-month old controls, and 14.3 % for the young control mice (4 weeks old). Another major difference between the studied groups was the higher percentage of defective metaphase I spindles registered in oocytes derived from lupus mice (60 % normal spindles), while for the young and older controls this proportion was 86 % and 81 %, respectively. No such difference was registered for metaphase II spindles. For both metaphase I and metaphase II oocytes, the proportions of normal actin cap and chromosomal condensation were similar between the experimental groups.


Assuntos
Lúpus Eritematoso Sistêmico/fisiopatologia , Oogênese/fisiologia , Animais , Diferenciação Celular , Células Cultivadas , Modelos Animais de Doenças , Feminino , Humanos , Metáfase , Camundongos , Camundongos Endogâmicos BALB C , Gravidez , Terpenos
16.
Int J Mol Sci ; 22(17)2021 Aug 27.
Artigo em Inglês | MEDLINE | ID: mdl-34502221

RESUMO

Neonatal lupus erythematosus (NLE) is a syndrome of clinical symptoms observed in neonates born to mothers with antibodies to soluble antigens of the cell nucleus. The main factors contributing to the pathogenesis of this disease are anti-Sjögren Syndrome A (anti-SS-A) antibodies, known as anti-Ro, and anti-Sjögren Syndrome B (anti-SS-B) antibodies, known as anti-La. Recent publications have also shown the significant role of anti-ribonucleoprotein antibodies (anti-RNP). Seropositive mothers may have a diagnosed rheumatic disease or they can be asymptomatic without diagnosis at the time of childbirth. These antibodies, after crossing the placenta, may trigger a cascade of inflammatory reactions. The symptoms of NLE can be divided into reversible symptoms, which concern skin, hematological, and hepatological changes, but 2% of children develop irreversible symptoms, which include disturbances of the cardiac stimulatory and conduction system. Preconceptive care and pharmacological prophylaxis of NLE in the case of mothers from the risk group are important, as well as the monitoring of the clinical condition of the mother and fetus throughout pregnancy and the neonatal period. The aim of this manuscript is to summarize the previous literature and current state of knowledge about neonatal lupus and to discuss the role of anti-Ro in the inflammatory process.


Assuntos
Anticorpos Antinucleares , Lúpus Eritematoso Sistêmico/congênito , Humanos , Recém-Nascido , Lúpus Eritematoso Sistêmico/complicações , Lúpus Eritematoso Sistêmico/etiologia , Lúpus Eritematoso Sistêmico/imunologia , Lúpus Eritematoso Sistêmico/fisiopatologia
17.
Int J Mol Sci ; 22(17)2021 Aug 31.
Artigo em Inglês | MEDLINE | ID: mdl-34502409

RESUMO

Dysregulations in the differentiation of CD4+-regulatory-T-cells (Tregs) and CD4+-responder-T-cells (Tresps) are involved in the development of active systemic lupus erythematosus (SLE). Three differentiation pathways of highly proliferative inducible costimulatory molecule (ICOS)+- and less proliferative ICOS--CD45RA+CD31+-recent-thymic-emigrant (RTE)-Tregs/Tresps via CD45RA-CD31+-memory-Tregs/Tresps (CD31+-memory-Tregs/Tresps), their direct proliferation via CD45RA+CD31--mature naïve (MN)-Tregs/Tresps, and the production and differentiation of resting MN-Tregs/Tresp into CD45RA-CD31--memory-Tregs/Tresps (CD31--memory-Tregs/Tresps) were examined in 115 healthy controls, 96 SLE remission patients, and 20 active disease patients using six color flow cytometric analysis. In healthy controls an appropriate sequence of these pathways ensured regular age-dependent differentiation. In SLE patients, an age-independently exaggerated differentiation was observed for all Treg/Tresp subsets, where the increased conversion of resting MN-Tregs/Tresps particularly guaranteed the significantly increased ratios of ICOS+-Tregs/ICOS+-Tresps and ICOS--Tregs/ICOS--Tresps during remission. Changes in the differentiation of resting ICOS+-MN-Tresps and ICOS--MN-Tregs from conversion to proliferation caused a significant shift in the ratio of ICOS+-Tregs/ICOS+-Tresps in favor of ICOS+-Tresps and a further increase in the ratio of ICOS--Tregs/ICOS--Tresps with active disease. The differentiation of ICOS+-RTE-Tregs/Tresps seems to be crucial for keeping patients in remission, where their limited production of proliferating resting MN-Tregs may be responsible for the occurrence of active disease flares.


Assuntos
Proteína Coestimuladora de Linfócitos T Induzíveis/metabolismo , Lúpus Eritematoso Sistêmico/imunologia , Linfócitos T Reguladores/metabolismo , Adulto , Diferenciação Celular/imunologia , Células Cultivadas , Feminino , Humanos , Memória Imunológica , Lúpus Eritematoso Sistêmico/fisiopatologia , Ativação Linfocitária , Masculino , Pessoa de Meia-Idade , Subpopulações de Linfócitos T/imunologia , Linfócitos T Reguladores/imunologia
18.
Drugs ; 81(15): 1795-1802, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34554438

RESUMO

Anifrolumab (anifrolumab-fnia; Saphnelo™) is a monoclonal antibody antagonist of the type 1 interferon receptor (IFNAR). It is being developed by AstraZeneca (under license from Medarex, now Bristol-Myers Squibb) for the treatment of autoimmune disorders, including systemic lupus erythematosus (SLE) and lupus nephritis, the underlying pathogenesis of which involves type 1 interferon. In July 2021, intravenous anifrolumab was approved in the USA for the treatment of adult patients with moderate to severe SLE who are receiving standard therapy. Anifrolumab (intravenous or subcutaneous) continues to be assessed in clinical studies in SLE in various countries, and the intravenous formulation is under regulatory review in the EU and Japan. This article summarizes the milestones in the development of anifrolumab leading to this first approval for the treatment of moderate to severe SLE.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Doenças Autoimunes/tratamento farmacológico , Receptor de Interferon alfa e beta/antagonistas & inibidores , Adulto , Anticorpos Monoclonais Humanizados/farmacologia , Doenças Autoimunes/fisiopatologia , Aprovação de Drogas , Desenvolvimento de Medicamentos , Humanos , Lúpus Eritematoso Sistêmico/tratamento farmacológico , Lúpus Eritematoso Sistêmico/fisiopatologia , Nefrite Lúpica/tratamento farmacológico , Nefrite Lúpica/fisiopatologia
19.
Rev. argent. reumatolg. (En línea) ; 32(3): 9-14, set. 2021. ilus, tab
Artigo em Espanhol | LILACS, BINACIS | ID: biblio-1365495

RESUMO

Introducción: la disfunción sexual (DS) es la alteración en una o varias de las fases de la actividad sexual. Puede culminar en frustración, dolor y disminución de la frecuencia de las relaciones sexuales. Objetivos: determinar la frecuencia de DS y analizar los factores asociados en pacientes con lupus eritematoso sistémico (LES). Materiales y métodos: se realizó un estudio de corte transversal. Se incluyeron pacientes femeninas con LES, entre 18 y 50 años, se excluyeron aquellas con síndrome de Sjögren, menopausia, depresión severa y analfabetas. Se evaluaron variables demográficas y de la enfermedad. Se aplicó la escala Depression Anxiety Stress Scale (DASS-21) y el Índice de Función Sexual Femenina (Female Sexual Function Index, FSFI). Se comparó con un grupo control sano. Resultados: se evaluaron 60 mujeres con LES y 63 controles. La prevalencia de DS en LES fue de 71,7% y hubo diferencias significativas en todos los dominios de la función sexual. El score total del FSFI en pacientes con LES fue menor al comparar con los controles. Según la escala DASS-21, estrés, ansiedad y depresión se observaron en al menos la mitad de mujeres lúpicas, sin embargo, no se encontró asociación entre estas variables y DS. Conclusiones: la prevalencia de DS en pacientes con LES fue elevada. Depresión, ansiedad y estrés no fueron determinantes en la presencia de DS.


Introduction: sexual dysfunction is the alteration in one or several phases of sexual activity. It can culminate in frustration, pain and a decrease in the frequency of sexual intercourse. Objectives: determine the frequency of sexual dysfunction and analyze associated factors in patients with SLE. Materials and methods: a descriptive cross-sectional study was conducted. We included patients with SLE, between 18 and 50 years of age, Secondary Sjogren's syndrome, menopause, severe depression and illiterate patients were excluded. Demographic and disease-related variables were studied. The Depression Anxiety Stress Scale (DASS-21), and the Female Sexual Function Index (FSFI) were applied. Results: sixty women with SLE and 63 controls were evaluated. The prevalence of SD in SLE was 71.7% and there were significant differences in all domains of sexual function. The total FSFI score in patients with SLE was lower when compared to controls. According to the DASS-21 scale, stress, anxiety and depression were observed in at least half of lupus women, however no association was found between these variables and SD. Conclusions: the prevalence of SD in patients with SLE was high. Depression, Anxiety, and Stress were not determinants in the presence of SD.


Assuntos
Humanos , Feminino , Adolescente , Adulto , Pessoa de Meia-Idade , Adulto Jovem , Disfunções Sexuais Fisiológicas/epidemiologia , Lúpus Eritematoso Sistêmico/fisiopatologia , Ansiedade/epidemiologia , Estresse Fisiológico , Estudos de Casos e Controles , Prevalência , Estudos Transversais , Depressão/epidemiologia
20.
Genes (Basel) ; 12(8)2021 07 29.
Artigo em Inglês | MEDLINE | ID: mdl-34440346

RESUMO

Neuropsychiatric manifestations of systemic lupus erythematosus (SLE), specifically cognitive dysfunction and mood disorders, are widely prevalent in SLE patients, and yet poorly understood. TNF-like weak inducer of apoptosis (TWEAK) has previously been implicated in the pathogenesis of neuropsychiatric lupus (NPSLE), and we have recently shown its effects on the transcriptome of the cortex of the lupus-prone mice model MRL/lpr. As the hippocampus is thought to be an important focus of NPSLE processes, we explored the TWEAK-induced transcriptional changes that occur in the hippocampus, and isolated several genes (Dnajc28, Syne2, transthyretin) and pathways (PI3K-AKT, as well as chemokine-signaling and neurotransmission pathways) that are most differentially affected by TWEAK activation. While the functional roles of these genes and pathways within NPSLE need to be further investigated, an interesting link between neuroinflammation and neurodegeneration appears to emerge, which may prove to be a promising novel direction in NPSLE research.


Assuntos
Citocina TWEAK/fisiologia , Genoma , Hipocampo/fisiopatologia , Lúpus Eritematoso Sistêmico/genética , Lúpus Eritematoso Sistêmico/fisiopatologia , Animais , Citocina TWEAK/genética , Modelos Animais de Doenças , Camundongos
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