BACKGROUND Clinically amyopathic deramatomyositis was manifested as the various cutaneous dermatomyositis(DM)manifestations without muscle weakness.Anti-melanoma differentiation-associated gene 5(anti-MDA5)and anti-Ro...BACKGROUND Clinically amyopathic deramatomyositis was manifested as the various cutaneous dermatomyositis(DM)manifestations without muscle weakness.Anti-melanoma differentiation-associated gene 5(anti-MDA5)and anti-Ro52 antibody-dual positive clinically amyopathic DM patients are at a high risk of developing rapidly progressive interstitial lung disease,and they exhibit an immensely high half-year mortality.CASE SUMMARY We presented three patients with anti-MDA5 and anti-Ro52 antibody-dual positive DM patients and we reviewed the previous studies on the link between anti-MDA5 and anti-Ro52 antibody-dual positive DM.Although we aggressively treated these patients similarly,but they all exhibited different prognoses.We reviewed the importance of clinical cutaneous rashes as well as the pathogenesis and treatment in the dual positive anti-MDA5 and anti-Ro52 associated DM.CONCLUSION Patients with anti-MDA5 anti-Ro52 antibody-dual positive DM should be accurately diagnosed at an early stage and should be treated aggressively,thus,the patient’s prognosis can be significantly modified.展开更多
Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR pep...Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR peptide IgG, PGE2, IL-1β in serum of SS patients using the enzyme-linked immune sorbent assay (ELISA). To measure the quantity of nitrite/nitrate, we used Griess reagent system. Key findings: Titres of M3mAChR antibody in sera from SS patients are significantly enhanced compared to healthy subjects (control). The enhancement of these autoantibodies is accompanied by the increase of the levels of PGE2, IL-1β and nitrite/nitrate in serum. Under in vitro conditions, the synthetic human M3 peptide impaires the increment of M3mAChR antibody but not that of nati-Ro/SSA antibody. In positive anti-Ro/SSA antibody patients, the increment of M3mAChR peptide IgG and the measured pro-inflammatory substances is related. Significance: On this basis, anti M3mAChR peptide IgG can be said to act as a modulator of the immune system and to play a role in the host-chronic increment of proinflammatory substances in SS patients with positive Ro/SSA antibody. This association between the antibody and the pathogenesis of SS disease may result in useful predicting SS.展开更多
目的探讨抗黑色素瘤分化相关蛋白-5(melanoma differentiation associated protein-5,MDA5)抗体、抗Ro-52抗体双阳性皮肌炎的临床特征及预后情况。方法收集2018年8月~2022年7月空军军医大学第二附属医院唐都医院收治的抗MDA5抗体阳性的4...目的探讨抗黑色素瘤分化相关蛋白-5(melanoma differentiation associated protein-5,MDA5)抗体、抗Ro-52抗体双阳性皮肌炎的临床特征及预后情况。方法收集2018年8月~2022年7月空军军医大学第二附属医院唐都医院收治的抗MDA5抗体阳性的47例皮肌炎患者,根据抗Ro-52抗体是否阳性,分为MDA5+Ro-52阳性组(n=23),MDA5+Ro-52阴性组(n=24),回顾性分析其临床资料,比较两组患者的临床特征、实验室指标、快速进展性肺间质病变发生率及病死率的差异。结果两组比较,MDA5+Ro-52阳性组Gotton疹、声音嘶哑发生率高于MDA5+Ro-52阴性组,差异均有统计学意义(P均<0.05);皮肤破溃、甲周红斑、向阳疹、披肩征、发热、关节疼痛、咽痛等发生率比较,差异均无统计学意义(P均>0.05);MDA5+Ro-52阳性组淋巴细胞计数[0.65(0.50,0.81)×10^(9)/L vs 1.18(0.91,1.63)×10^(9)/L,z=-3.821,P=0.001]、血清白蛋白[33.40(29.40,35.67)g/L vs 37.25(32.65,40.27)g/L,z=-3.325,P=0.001]、动脉氧分压[66.60(58.60,86.80)mmHg vs 88.60(75.67,95.72)mmHg,z=-2.373,P=0.018]、血氧饱和度[90.40%(89.00%,95.00%)vs 94.90%(90.50%,97.73%),z=-2.353,P=0.019]低于MDA5+Ro-52阴性组,差异有统计学意义(P<0.05),红细胞沉降率[41.00(30.00,62.50)mm/h vs 28.50(21.50,48.75)mm/h,z=2.161,P=0.031]、血清乳酸脱氢酶水平[426.00(335.50,605.50)U/L vs 260.00(217.50,373.25)U/L,z=3.313,P=0.011]、血清铁蛋白水平[1210.00(465.50,2749.00)μg/L vs 366.00(150.25,629.25)μg/L,z=2.856,P=0.004]、快速进展性肺间质病变发生率(73.91%vs 25.00%,χ^(2)=11.245,P=0.001)及病死率(43.47%vs 8.33%,χ^(2)=7.63,P=0.006)均高于抗MDA5+Ro-52阴性组,差异有统计学意义(P<0.05)。结论抗MDA5抗体、抗Ro-52抗体双阳性的皮肌炎患者易出现血清乳酸脱氢酶、铁蛋白水平增高,血清白蛋白、外周血淋巴细胞计数减低,且更易合并快速进展性肺间质病变、出现低氧血症,预后差,病死率高,需引起临床医师的重视。展开更多
We investigated the value of autoantibodies as biomarkers of chronic graft-versus-host disease(cGVHD)by analyzing the autoantibody profiles of 65 patients(34 cGVHD and 31 non-cGVHD)surviving longer than three months a...We investigated the value of autoantibodies as biomarkers of chronic graft-versus-host disease(cGVHD)by analyzing the autoantibody profiles of 65 patients(34 cGVHD and 31 non-cGVHD)surviving longer than three months after allogeneic hematopoietic stem cell transplantation(allo-HSCT).Autoantibodies to at least one antigen were detected in 45 patients(70.8%),with multiple autoantibodies detected in 30 patients(46.2%).Antinuclear antibodies(ANAs)were the most frequently detected autoantibodies,with a significantly higher prevalence in non-cGVHD patients and c GVHD patients than that in healthy controls(HCs).ANA-nucleolar(ANA-N)was the main immunofluorescence pattern of ANA-positivity in both the non-cGVHD and c GVHD groups.There was a higher prevalence of anti-Ro52-positivity in non-cGVHD and cGVHD patients than in HC.Liver cGVHD was significantly associated with anti-Ro52-positivity.However,cGVHD activity and severity were not associated with the presence of autoantibodies.Similarly,there were no significant differences in overall survival or relapse among the four groups of patients expressing autoantibodies.Our results suggest that autoantibodies have limited value in predicting cGVHD.展开更多
文摘BACKGROUND Clinically amyopathic deramatomyositis was manifested as the various cutaneous dermatomyositis(DM)manifestations without muscle weakness.Anti-melanoma differentiation-associated gene 5(anti-MDA5)and anti-Ro52 antibody-dual positive clinically amyopathic DM patients are at a high risk of developing rapidly progressive interstitial lung disease,and they exhibit an immensely high half-year mortality.CASE SUMMARY We presented three patients with anti-MDA5 and anti-Ro52 antibody-dual positive DM patients and we reviewed the previous studies on the link between anti-MDA5 and anti-Ro52 antibody-dual positive DM.Although we aggressively treated these patients similarly,but they all exhibited different prognoses.We reviewed the importance of clinical cutaneous rashes as well as the pathogenesis and treatment in the dual positive anti-MDA5 and anti-Ro52 associated DM.CONCLUSION Patients with anti-MDA5 anti-Ro52 antibody-dual positive DM should be accurately diagnosed at an early stage and should be treated aggressively,thus,the patient’s prognosis can be significantly modified.
文摘Aims: This paper investigates the presence of M3 muscarinic acetylcholine receptor autoantibody present in the serum of patients with primary Sj?gren syndrome (pSS). Main methods: We detected the levels of M3mAChR peptide IgG, PGE2, IL-1β in serum of SS patients using the enzyme-linked immune sorbent assay (ELISA). To measure the quantity of nitrite/nitrate, we used Griess reagent system. Key findings: Titres of M3mAChR antibody in sera from SS patients are significantly enhanced compared to healthy subjects (control). The enhancement of these autoantibodies is accompanied by the increase of the levels of PGE2, IL-1β and nitrite/nitrate in serum. Under in vitro conditions, the synthetic human M3 peptide impaires the increment of M3mAChR antibody but not that of nati-Ro/SSA antibody. In positive anti-Ro/SSA antibody patients, the increment of M3mAChR peptide IgG and the measured pro-inflammatory substances is related. Significance: On this basis, anti M3mAChR peptide IgG can be said to act as a modulator of the immune system and to play a role in the host-chronic increment of proinflammatory substances in SS patients with positive Ro/SSA antibody. This association between the antibody and the pathogenesis of SS disease may result in useful predicting SS.
文摘目的探讨抗黑色素瘤分化相关蛋白-5(melanoma differentiation associated protein-5,MDA5)抗体、抗Ro-52抗体双阳性皮肌炎的临床特征及预后情况。方法收集2018年8月~2022年7月空军军医大学第二附属医院唐都医院收治的抗MDA5抗体阳性的47例皮肌炎患者,根据抗Ro-52抗体是否阳性,分为MDA5+Ro-52阳性组(n=23),MDA5+Ro-52阴性组(n=24),回顾性分析其临床资料,比较两组患者的临床特征、实验室指标、快速进展性肺间质病变发生率及病死率的差异。结果两组比较,MDA5+Ro-52阳性组Gotton疹、声音嘶哑发生率高于MDA5+Ro-52阴性组,差异均有统计学意义(P均<0.05);皮肤破溃、甲周红斑、向阳疹、披肩征、发热、关节疼痛、咽痛等发生率比较,差异均无统计学意义(P均>0.05);MDA5+Ro-52阳性组淋巴细胞计数[0.65(0.50,0.81)×10^(9)/L vs 1.18(0.91,1.63)×10^(9)/L,z=-3.821,P=0.001]、血清白蛋白[33.40(29.40,35.67)g/L vs 37.25(32.65,40.27)g/L,z=-3.325,P=0.001]、动脉氧分压[66.60(58.60,86.80)mmHg vs 88.60(75.67,95.72)mmHg,z=-2.373,P=0.018]、血氧饱和度[90.40%(89.00%,95.00%)vs 94.90%(90.50%,97.73%),z=-2.353,P=0.019]低于MDA5+Ro-52阴性组,差异有统计学意义(P<0.05),红细胞沉降率[41.00(30.00,62.50)mm/h vs 28.50(21.50,48.75)mm/h,z=2.161,P=0.031]、血清乳酸脱氢酶水平[426.00(335.50,605.50)U/L vs 260.00(217.50,373.25)U/L,z=3.313,P=0.011]、血清铁蛋白水平[1210.00(465.50,2749.00)μg/L vs 366.00(150.25,629.25)μg/L,z=2.856,P=0.004]、快速进展性肺间质病变发生率(73.91%vs 25.00%,χ^(2)=11.245,P=0.001)及病死率(43.47%vs 8.33%,χ^(2)=7.63,P=0.006)均高于抗MDA5+Ro-52阴性组,差异有统计学意义(P<0.05)。结论抗MDA5抗体、抗Ro-52抗体双阳性的皮肌炎患者易出现血清乳酸脱氢酶、铁蛋白水平增高,血清白蛋白、外周血淋巴细胞计数减低,且更易合并快速进展性肺间质病变、出现低氧血症,预后差,病死率高,需引起临床医师的重视。
基金Project supported by the Zhejiang Provincial Natural Science Foundation of China(No.LY15H080002)
文摘We investigated the value of autoantibodies as biomarkers of chronic graft-versus-host disease(cGVHD)by analyzing the autoantibody profiles of 65 patients(34 cGVHD and 31 non-cGVHD)surviving longer than three months after allogeneic hematopoietic stem cell transplantation(allo-HSCT).Autoantibodies to at least one antigen were detected in 45 patients(70.8%),with multiple autoantibodies detected in 30 patients(46.2%).Antinuclear antibodies(ANAs)were the most frequently detected autoantibodies,with a significantly higher prevalence in non-cGVHD patients and c GVHD patients than that in healthy controls(HCs).ANA-nucleolar(ANA-N)was the main immunofluorescence pattern of ANA-positivity in both the non-cGVHD and c GVHD groups.There was a higher prevalence of anti-Ro52-positivity in non-cGVHD and cGVHD patients than in HC.Liver cGVHD was significantly associated with anti-Ro52-positivity.However,cGVHD activity and severity were not associated with the presence of autoantibodies.Similarly,there were no significant differences in overall survival or relapse among the four groups of patients expressing autoantibodies.Our results suggest that autoantibodies have limited value in predicting cGVHD.
