Anti-SSA antibodies

抗 SSA 抗体
  • 文章类型: Journal Article
    原发性干燥综合征(pSS)属于结缔组织疾病的范畴,其特征在于存在自身抗体,例如抗核抗体(ANA)。然而,根据PSS的分类标准,一些患者可能表现出自身抗体阴性结果。自身抗体阴性的患者可能缺乏结缔组织疾病的典型特征,免疫状态以及器官受累和损伤的程度可能与自身抗体阳性的患者不同。本研究旨在比较自身抗体阳性和阴性患者的临床表型,为临床医生提供疾病分类和治疗选择的见解。pSS患者根据自身抗体的存在和滴度进行分组。随后,比较了这些组之间器官损伤和实验室指标的差异,目的分析自身抗体滴度在评估pSS病情中的价值。(1)ANA阳性患者炎症指标水平升高,包括ESR,IgG水平,唇腺活检病理分级,和整体器官受累,与ANA阴性患者比较(P<0.05)。此外,ANA阳性与多器官损伤发生率较高相关,特别是影响皮肤,粘膜,血液系统(P<0.05)。(2)随着ANA滴度的增加,患者表现出IgG水平升高和器官受累升级(P<0.05).(3)自身抗体阳性组患者(抗核抗体阳性,抗SSA,或抗SSB抗体)的IgG水平高于阴性组(P<0.05)。(4)抗SSA和抗SSB抗体阳性的患者与其他患者相比,炎症指标和IgG水平较高(P<0.05);在器官受累和器官损伤方面没有观察到显著差异.pSS中ANA阳性的患者通常表现出更高水平的炎症和经历多器官损伤的可能性增加。此外,随着ANA滴度的增加,炎症水平和多器官损伤的风险也在上升.此外,抗SSA和抗SSB抗体的存在可能导致炎症水平升高的风险升高,但不会增加器官损伤的风险。
    Primary Sjögren\'s Syndrome (pSS) falls within the category of connective tissue diseases, characterized by the presence of autoantibodies such as antinuclear antibodies (ANA). However, according to the classification criteria for pSS, some patients may exhibit a negative result for autoantibodies. Patients with a negative result for autoantibodies may lack typical features of connective tissue diseases, and the immunological state as well as the extent of organ involvement and damage may differ from those with positive autoantibodies. This study aims to compare the clinical phenotypes of patients with positive and negative autoantibodies, providing insights for disease classification and treatment selection for clinicians. Patients with pSS were grouped based on the presence and titers of their autoantibodies. Subsequently, differences in organ damage and laboratory indicators were compared between these groups, aiming to analyze the value of autoantibody titers in assessing the condition of pSS. (1) Patients with positive ANA exhibited elevated levels of inflammatory indicators, including ESR, IgG levels, lip gland biopsy pathology grade, and overall organ involvement, in comparison with patients with negative ANA (P < 0.05). Furthermore, ANA-positivity correlated with a higher occurrence of multi-organ damage, particularly affecting the skin, mucous membranes, and the hematological system (P < 0.05). (2) As ANA titers increased, patients demonstrated elevated levels of IgG and an escalation in organ involvement (P < 0.05). (3) Patients in the positive autoantibody group (positive for antinuclear antibodies, anti-SSA, or anti-SSB antibodies) had higher IgG levels compared to the negative group (P < 0.05). (4) Patients with positive anti-SSA and anti-SSB antibodies exhibited higher levels of inflammatory indicators and IgG compared to other patients (P < 0.05); however, no significant differences were observed in terms of organ involvement and organ damage. Patients with positive ANA in pSS typically exhibit higher levels of inflammation and an increased likelihood of experiencing multi-organ damage. Furthermore, as the ANA titers increase, both inflammation levels and the risk of multi-organ damage also escalate. Additionally, the presence of anti-SSA and anti-SSB antibodies may contribute to an elevated risk of increased inflammation levels, but does not increase the risk of organ damage.
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  • 文章类型: Journal Article
    系统性红斑狼疮是一种异质性自身免疫性疾病,其中皮肤受累是常见表现。目前认为SLE皮肤受累的光敏性与抗SSA抗体有关。本研究旨在通过血清代谢组学分析,扩大SLE皮肤光敏性分子病理生理学的知识现状。
    23例皮肤受累性SLE(SI)组血清代谢产物,无SI(NSI)组14例,采用UPLC-MS/MS技术对30例健康对照(HC)进行分析,根据SI中抗SSA抗体的表达进行亚组分析。MetaboAnalyst5.0用于富集分析和ROC曲线构建,鉴定与抗SSA抗体相关的皮肤受累SLE的血清代谢标志物。
    我们确定了与SLE光敏性相关的几种代谢物和代谢途径。两种代谢物,SM(d18:1/24:0)和γ-CEHC可以区分抗SSA抗体阳性和阴性SI,AUC为0.829和0.806。这两种光敏化相关物质可能是与抗SSA抗体相关的SLE皮肤受累的潜在标志物。
    这项研究为SI患者的发病机制提供了新的见解,为抗SSA抗体与SLE皮肤光致变应性表现的关系提供了新的分子生物学基础。
    UNASSIGNED: Systemic lupus erythematosus is a heterogeneous autoimmune disease in which skin involvement is a common manifestation. It is currently thought that the photosensitivity of SLE skin involvement is associated with anti-SSA antibodies. This study aimed to expand the current state of knowledge surrounding the molecular pathophysiology of SLE skin photosensitivity through Serum metabolomics analysis.
    UNASSIGNED: The serum metabolites of 23 cases of skin-involved SLE (SI) group, 14 cases of no SI (NSI) group, and 30 cases of healthy controls (HC) were analyzed by using UPLC-MS/MS technology, and subgroup analysis was performed according to the expression of anti-SSA antibodies in SI. MetaboAnalyst 5.0 was used for enrichment analysis and ROC curve construction, identifying serum metabolic markers of skin-involved SLE associated with anti-SSA antibodies.
    UNASSIGNED: We identified several metabolites and metabolic pathways associated with SLE photosensitivity. Two metabolites, SM (d18:1/24:0) and gamma-CEHC can distinguish between anti-SSA antibody-positive and negative SI, with AUC of 0.829 and 0.806. These two photosensitization-related substances may be potential markers of skin involvement in SLE associated with anti-SSA antibody.
    UNASSIGNED: This study provides new insights into the pathogenesis of SI patients, and provides a new molecular biological basis for the association between anti-SSA antibodies and skin photoallergic manifestations of SLE.
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  • 文章类型: Journal Article
    OBJECTIVE: The goal of this study is to determine a link between benign essential blepharospasm and Sjogren\'s syndrome by analyzing the presence of extractable nuclear antigens in this population.
    METHODS: Seventy-two patients with benign essential blepharospasm (BEB) were included in this study. We eliminated patients with hemifacial spasm or blepharospasm secondary to corneal pathology. We collected the values of the Schirmer I test and the results of the anti-SSA and anti-SSB antibodies.
    RESULTS: Our study included 72 patients (144 eyes) whose 62 women (86.1%). Mean age was 74.3 years±10.73. Average Schirmer I test was 3.14mm±4.00mm. Five women (8% of this female population) had positive anti-SSA and SSB antibodies. Their mean age was 65.66 years±13.24 whereas the negative antibody patients had an average age of 75.42±9.27. There was no significant difference between their Schimer I test and the Schirmer I of negative antibody population.
    CONCLUSIONS: This study illustrates the possible association between the presence of Sjögren\'s syndrome and the occurrence of a BEB justifying the search for anti-SSA and anti SSB in blepharospasm patients.
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  • 文章类型: Journal Article
    Anti-SS-A antibodies are often sought for in autoimmune diseases diagnosis. Two different target proteins have actually been identified: Ro52 and Ro60. Clinical and immunological associations seem different depending on anti-Ro52 or anti-Ro60 antibodies presence. However, due to a heterogeneous presentation in the literature, some immunology laboratories in France have stopped providing anti-Ro52 antibody findings. We report here a new hospital study designed to determine the diagnostic utility of the separate detection of anti-Ro52 and anti-Ro60 antibodies. We conducted a retrospective, observational study, including every adult patient with positive antinuclear antibodies (ANA) tested in our immunology laboratory, and associated with anti-Ro52 and/or anti-Ro60 antibodies, between 2011 and 2014. Out of 13032 sera tested for ANA, 399 adults had antibodies to Ro52 and/or Ro60; 81.7% were female, with a mean age of 54.5 ± 17.0 years. Anti-Ro52 antibodies were found in 75.7% of the patients and anti-Ro60 antibodies in 56.9%. Among them, 43.1% were classified in the Ro52 + Ro60- group, 32.6% in the Ro52 + Ro60 + group and 24.3% in the Ro52-Ro60+ group. In the Ro52-Ro60+ group, systemic lupus was the most frequent diagnosis (48.5%), with a possible association with antiphospholipid antibodies (anti-cardiolipin antibodies: OR 2.5 (CI95 [1.0-5.0], p = 0.05) and lupus anticoagulant {OR 3.6 (CI95 [1.10-10.0] p = 0.02)}. In the Ro52+Ro60+, primary Sjögren Syndrome was the most likely (OR 4.2 95% CI [2.1-8.3] p < 10-4), especially in patients Ro52+Ro60+La+. Patients with isolated anti-Ro52 had a wider variety of diseases associated, but among auto-immune diseases they were more prone to inflammatory myositis (OR 10.5 [1.4-81.7], p = 0.02) and inflammatory rheumatism (OR 4.6 [1.6-13.8], p = 0.006) in contrast to systemic lupus (OR 0.2 [0.1-0.3], p < 10-4) or primary Sjögren\'s syndrome (OR 0.1 [0.06-0.2], p < 10-4). We therefore suggest that, when anti-ENA antibodies are prescribed, it should include separate anti-Ro52 and anti-Ro60 antibodies determination. To go even further, we would like to suggest a change in ENA nomenclature to avoid confusion, abandoning the anti-SS-A label in favor of the anti-Ro52/TRIM21 or anti-Ro60 antibody for a clearer designation.
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  • 文章类型: Letter
    暂无摘要。
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  • 文章类型: Journal Article
    A causal link has long been described between estrogen and systemic lupus erythematosus activity. Contraceptive and pregnancy management is now common for lupus patients, but pregnancy continues to be associated with higher maternal and fetal mortality/morbidity in systemic lupus erythematosus patients than among the general population. Potential complications include lupus flares, obstetric complications (fetal loss, in utero growth retardation, premature birth) and neonatal lupus syndrome. Association with antiphospholipid antibodies or antiphospholipid syndrome increases the risk of obstetric complications. Anti-SSA and/or anti-SSB antibodies put fetuses at risk for neonatal lupus. Improving the outcome of such pregnancies depends upon optimal systematic planning of pregnancy at a preconception counseling visit coupled with a multidisciplinary approach. Absence of lupus activity, use of appropriate medication during pregnancy based on the patient\'s medical history and risk factors, and regular monitoring constitute the best tools for achieving a favorable outcome in such high-risk pregnancies. The aim of this review is to provide an update on the management of contraception and pregnancy in systemic lupus erythematosus, cutaneous lupus and/or antiphospholipid syndrome in order to reduce the risk of complications and to ensure the best maternal and fetal prognosis.
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  • 文章类型: Case Reports
    This report describes the clinical course and multi-modality imaging findings in an anti-SSA-antibody-exposed fetus with suspected myocardial inflammation. Postnatal cardiac MRI - using fast acquisition, free-breathing with feed-and-swaddle technique - was used to evaluate for myocardial fibrosis/inflammation. This is the first published report, to our knowledge, of ductal constriction temporally associated with oral dexamethasone therapy in an anti-SSA-antibody-exposed fetus and of the use of this unique postnatal MRI protocol in this setting.
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  • 文章类型: English Abstract
    Pregnancy in systemic lupus erythematosus patients is a common situation that remains associated with higher maternal and fetal mortality/morbidity than in the general population. Complications include lupus flares, obstetrical complications (fetal loss, in utero growth retardation, prematurity) and neonatal lupus syndrome. The association with antiphospholipid antibodies or antiphospholipid syndrome increases the risk of obstetrical complications. Improving the care of these pregnancies depends upon a systematic pregnancy planning, ideally during a preconception counseling visit and a multidisciplinary approach (internist/rheumatologist, obstetrician and anesthetist). The absence of lupus activity, the use of appropriate medications during pregnancy adjusted to the patient\'s medical history and risk factors, and a regular monitoring are the best tools for a favorable outcome for these high-risk pregnancies. The aim of this review article is to perform an update on the medical care of pregnancy in systemic lupus erythematosus or antiphospholipid syndrome to reduce the risk of complications and to ensure the best maternal and fetal prognosis.
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  • 文章类型: Journal Article
    BACKGROUND: Up to 68% of patients with primary Sjögren\'s syndrome (pSS) undergo neurological complications, and evidence for distinct immunological subgroups is emerging. We sought to determine systemic and immunological profiles associated with neurological manifestations.
    METHODS: 420 patients fulfilling the 2002 American-European pSS criteria were retrospectively analyzed. Neurological manifestations were diagnosed through clinical, biological, electrophysiological, and imaging findings. Biographical, clinical, and laboratory data were compared.
    RESULTS: Within 93 (22%) patients with neurological manifestations, peripheral and central nervous systems were involved in 66% and 44%, respectively. Raynaud\'s phenomenon, cutaneous vasculitis, renal involvement, and cryoglobulinemia were associated with sensorimotor neuropathy and mononeuritis multiplex (p<0.05). Conversely, pure sensory neuropathy occurred without extraglandular manifestation, and without anti-Ro/SSA antibodies (p<0.05). All neurological manifestations were associated with increased use of corticosteroids and immunosuppressive drugs (p<0.05).
    CONCLUSIONS: In pSS, patients with sensorimotor neuropathies and pure sensory neuropathies have distinct extraglandular and immunological profiles.
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