机构地区:[1]中国医学科学院 北京协和医学院 清华大学医学部 北京协和医院风湿免疫科,北京100032
出 处:《中华检验医学杂志》2010年第2期115-120,共6页Chinese Journal of Laboratory Medicine
基 金:国家自然科学基金资助项目(30471617,30640084,30872331);国家十一五科技支撑计划资助项目(2008BAI59B02,2008BAI59B03)
摘 要:目的通过检测PBC患者血清自身免疫性肝病相关自身抗体,探讨这些抗体在PBC患者中的阳性状况及临床意义。方法采用IIF法检测247例肝病患者(173例PBC、37例AIH和37例LDC)血清AMA,采用ELISA检测血清自身免疫性肝病相关自身抗体(AMA—M2、抗GP210抗体、抗SP100抗体、抗SLA抗体、抗LC1抗体、抗LKM-1抗体)。结果AMA、AMA—M2、抗GP210抗体、抗SP100抗体、抗LC1抗体、抗SLA抗体和抗LKM-1抗体在173例PBC组的阳性率分别为92.5%(160/173)、86.7%(150/173)、35.8%(62/173)、24.3%(42/173)、0.6%(1/173)、0%(0/173)、0.6%(1/173),在37例AIH组的阳性率分别为18.9%(7/37)、5.4%(2/37)、8.1%(3/37)、13.5%(5/37)、0%(0/37)、5.4%(2/37)、2.7%(1/37),在37例LDC组的阳性率分别为5.4%(2/37)、2.7%(1/37)、5.4%(2/37)、10.8%(4/37)、0%(0/37)、0%(0/37)、0%(0/37)。AMA、AMA—M2和抗GP210抗体在PBC患者的阳性率显著高于AIH患者(χ^2值分别为101.3,100.8和11.0,P均〈0.01)。而抗SLA抗体在AIH患者阳性率高于PBC患者(χ^2=9.4,P〈0.01)。抗GP210抗体阳性PBC患者ALT、TBIL、DBIL、GGT和ALP水平显著高于阴性患者(U值分别为1212.0、1199.0、1218.0、1074.0、1030.0,P均〈0.01)。AMA阳性PBC患者IgM水平显著高于阴性患者(U=94.0,P〈0.05)。结论抗LC1抗体、抗sLA抗体和抗LKM-1抗体在PBC和AIH中阳性率较低,筛查这3种抗体的临床意义可能不大。抗GP210抗体与PBC患者的肝功能损伤有关,AMA与PBC患者的免疫功能相关,临床筛查抗GP210抗体和AMA对PBC诊断有重要意义。Objective To explore the prevalence of autoimmune liver disease-related antibodies in patients with PBC, and study the clinic significance of autoimmune liver disease related antibody profiles in patients with PBC. Methods The anti-AMA in 247 specimens from patients with liver disease, including 173 PBC, 37 AIH and 37 LDC were detected by IIF. Anti-AMA-M2, anti-GP210, anti-SP100, anti-SLA, anti-LCland anti-LKM-1 antibodies were measured by ELISA. Results The positive rates of anti-AMA, anti-AMA-M2, anti-GP210, anti-SP100, anti-LC1, anti-SLA and anti-LKM-1 antibodies were 92. 5% ( 160/ 173), 86.7%(150/173), 35.8% (62/173), 24.3% (42/173), 0.6% (1/173), 0% (0/173) and 0. 6% (1/173) in PBC group, 18.9% (7/37), 5.4% (2/37), 8.1% (3/37) ,13.5% (5/37), 0% (0/ 37) ,5.4% (2/37) and 2.7% (1/37) in AIH group and 5.4% (2/37), 2. 7% ( 1/37), 5.4% (2/37), 10. 8% (4/37), 0% (0/37), 0% (0/37) and 0% (0/37) respectively in LDC group. Anti-AMA, anti- AMA-M2 and anti-GP210 was detected more frequently in patients with PBC group than AIH group (χ^2 = 101.3,100. 8 and 11. 0,P 〈0. 01 ) while anti-SLA was detected more frequently in patients with AIH group than PBC group (χ^2 =9.4 ,P 〈0. 01 ). The levels of ALT, TBIL, DBIL, GGT and ALP were higher in patients known to have positive anti-GP210 ( U = 1212. 0,1199. 0,1218. 0,1074. 0,1030. 0, P 〈 0.01 ) and the levels of IgM were higher in patients known to have positive AMA ( U = 94.0, P 〈 0. 05 ). Conclusions Anti-LC1, anti-SLA and anti-LKM-1 antibodies in PBC and AIH are detected at a very low frequency in the eorhort. Anti-GP210 antibody is found to be associated with the severity of liver damage while AMA is found to be associated with immunologic function in patients with PBC. There is little significance for screening anti-LC1, anti-SLA, anti-LKM-1 antibodies in patients with autoimmune liver diseases. It is of importance to detect anti-AMA and anti-GP210 antibodies for dia
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