Background: In pemphigus, loss of epidermal adhesion is induced by binding of circulating autoantibodies to the desmosomal cadherins desmoglein 3 (Dsg3) in pemphigus vulgaris (PV) and desmoglein 1 (Dsg1) in pemphigus ...Background: In pemphigus, loss of epidermal adhesion is induced by binding of circulating autoantibodies to the desmosomal cadherins desmoglein 3 (Dsg3) in pemphigus vulgaris (PV) and desmoglein 1 (Dsg1) in pemphigus foliaceus (PF), respectively. Therapeutic removal of Dsg- reactive autoantibodies by immunoadsorption (IA) has been demonstrated to exert clinical remission of the disease. Objectives: The aim of this intervention study was to evaluate the efficacy and safety of the peptide- based Globaffin adsorber system in the treatment of severe pemphigus cases. Patients and Methods: We applied IA in 4 PV and 2 PF patients with severe chronic disease resistant to conventional immunosuppressive therapy. IA was performed on 4 consecutive days, representing 1 treatment cycle, followed by a 4- week treatment- free interval. Serum samples for determining serum IgG and anti- Dsg1Dsg3 IgG autoantibodies were drawn daily before and after IA, respectively. During follow- up, patients were examined carefully, and laboratory parameters were controlled monthly for up to 1 year. Results: IA led to excellent clinical responses. Skin and mucosal lesions cleared almost completely within weeks. One IA cycle reduced anti- Dsg1 and anti- Dsg3 autoantibodies by an average of 50- 70% as determined by ELISA. Conclusions: Using the Globaffin adsorber system, IA represents an effective and safe treatment opportunity in severe and therapy- resistant pemphigus.展开更多
Objective: To evaluate the role of the enzyme-linked immunosorbent assay (ELISA) test for the detection of antibodies to desmoglein 1 (dsg1) and desmoglein 3 (dsg3) in the diagnosis of pemphigus vulgaris (PV), and its...Objective: To evaluate the role of the enzyme-linked immunosorbent assay (ELISA) test for the detection of antibodies to desmoglein 1 (dsg1) and desmoglein 3 (dsg3) in the diagnosis of pemphigus vulgaris (PV), and its correlation with disease severity and clinical presentation (mucosal PV, cutaneous PV, mucocutaneous PV). Methods: Twenty-seven active PV patients and 26 controls with other dermatologic disorders were included in the study. The severity of oral and cutaneous involvement was assessed and recorded. ELISA test for the measurement of anti-dsg1 and anti-dsg3 antibodies was performed (Medical and Biological Laboratories Co. Ltd., Nagoya, Japan). The cut-off ELISA value for both anti-dsg1 and anti-dsg3 was taken as 20. Results: Of the 27 patients, 26 were ELISA positive for anti-dsg1 antibodies and 23 for anti-dsg3 antibodies. Of the controls, two were positive for anti-dsg1 and none for anti-dsg3 antibodies. The sensitivity and specificity of ELISA for anti-dsg1 in the diagnosis of PV were 96.3% and 92.3% , respectively. For anti-dsg3, they were 85.2% and 100% , respectively. The different morphologic types of PV could not be differentiated on the basis of antibody profile; however, a direct correlation between anti-dsg3 titers and the severity of oral disease was noted, and also between antidsg1 titers and the severity of cutaneous disease. Conclusions: ELISA (dsg1 and dsg3) is an efficient tool for confirming the diagnosis of PV. Specific antibody titers correlate with disease severity; however, desmoglein testing cannot differentiate between the various morphologic subtypes of PV.展开更多
目的探讨凝集素样氧化低密度脂蛋白受体1(lectin like oxidized low density lipoprotein receptor 1,LOX-1)在氧化低密度脂蛋白(oxLDL)诱导的血管内皮高通透性反应中的作用。方法采用Transwell单层细胞模型系统和油红O染色,观察oxLDL或...目的探讨凝集素样氧化低密度脂蛋白受体1(lectin like oxidized low density lipoprotein receptor 1,LOX-1)在氧化低密度脂蛋白(oxLDL)诱导的血管内皮高通透性反应中的作用。方法采用Transwell单层细胞模型系统和油红O染色,观察oxLDL或和LOX-1阻断抗体对单层血管内皮细胞LDL通透性的影响以及下室THP-1巨噬细胞内脂质的蓄积情况;用Western blot法和激光扫描共聚焦显微镜检测oxLDL或和LOX-1阻断抗体对桥粒芯糖蛋白1(DSG1)在人脐静脉内皮细胞(HUVECs)中表达和分布的改变。结果 oxLDL可以增加单层内皮细胞对LDL的通透性和下室THP-1巨噬细胞脂质的蓄积,同时降低DSG1的表达及其在细胞间分布的连续性,而抑制LOX-1可以减弱内皮细胞的高通透性反应和巨噬细胞脂质蓄积。结论 oxLDL可能是通过降低桥粒蛋白表达使内皮细胞构型改变来诱导内皮高通透性,从而促进内皮下巨噬细胞内的脂质蓄积,其机制可能涉及LOX-1的介导。展开更多
文摘Background: In pemphigus, loss of epidermal adhesion is induced by binding of circulating autoantibodies to the desmosomal cadherins desmoglein 3 (Dsg3) in pemphigus vulgaris (PV) and desmoglein 1 (Dsg1) in pemphigus foliaceus (PF), respectively. Therapeutic removal of Dsg- reactive autoantibodies by immunoadsorption (IA) has been demonstrated to exert clinical remission of the disease. Objectives: The aim of this intervention study was to evaluate the efficacy and safety of the peptide- based Globaffin adsorber system in the treatment of severe pemphigus cases. Patients and Methods: We applied IA in 4 PV and 2 PF patients with severe chronic disease resistant to conventional immunosuppressive therapy. IA was performed on 4 consecutive days, representing 1 treatment cycle, followed by a 4- week treatment- free interval. Serum samples for determining serum IgG and anti- Dsg1Dsg3 IgG autoantibodies were drawn daily before and after IA, respectively. During follow- up, patients were examined carefully, and laboratory parameters were controlled monthly for up to 1 year. Results: IA led to excellent clinical responses. Skin and mucosal lesions cleared almost completely within weeks. One IA cycle reduced anti- Dsg1 and anti- Dsg3 autoantibodies by an average of 50- 70% as determined by ELISA. Conclusions: Using the Globaffin adsorber system, IA represents an effective and safe treatment opportunity in severe and therapy- resistant pemphigus.
文摘Objective: To evaluate the role of the enzyme-linked immunosorbent assay (ELISA) test for the detection of antibodies to desmoglein 1 (dsg1) and desmoglein 3 (dsg3) in the diagnosis of pemphigus vulgaris (PV), and its correlation with disease severity and clinical presentation (mucosal PV, cutaneous PV, mucocutaneous PV). Methods: Twenty-seven active PV patients and 26 controls with other dermatologic disorders were included in the study. The severity of oral and cutaneous involvement was assessed and recorded. ELISA test for the measurement of anti-dsg1 and anti-dsg3 antibodies was performed (Medical and Biological Laboratories Co. Ltd., Nagoya, Japan). The cut-off ELISA value for both anti-dsg1 and anti-dsg3 was taken as 20. Results: Of the 27 patients, 26 were ELISA positive for anti-dsg1 antibodies and 23 for anti-dsg3 antibodies. Of the controls, two were positive for anti-dsg1 and none for anti-dsg3 antibodies. The sensitivity and specificity of ELISA for anti-dsg1 in the diagnosis of PV were 96.3% and 92.3% , respectively. For anti-dsg3, they were 85.2% and 100% , respectively. The different morphologic types of PV could not be differentiated on the basis of antibody profile; however, a direct correlation between anti-dsg3 titers and the severity of oral disease was noted, and also between antidsg1 titers and the severity of cutaneous disease. Conclusions: ELISA (dsg1 and dsg3) is an efficient tool for confirming the diagnosis of PV. Specific antibody titers correlate with disease severity; however, desmoglein testing cannot differentiate between the various morphologic subtypes of PV.
