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Serum Prolactin Level and Prolactin Receptor Expression on Peripheral Blood Mononuclear Cells in Patients With Systemic Lupus Erythematosus
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- Author:
- No author available
- Journal Title:
- CHINESE JOURNAL OF DERMATOLOGY
- Issue:
- 1
- DOI:
- 10.3760/j.issn:0412-4030.2003.01.005
- Key Word:
- 红斑狼疮,系统性;催乳素;受体,催乳素
Abstract： 目的探讨系统性红斑狼疮(SLE)患者血清催乳素(PRL)水平和外周血淋巴细胞的催乳素受体(PRLR)的表达与SLE活动性的关系.方法应用时间分辨免疫发光试验(TrFIA)测定血清PRL,用SLEDAI指数评估了113例SLE患者的病情活动性,并用Logistic多元回归研究临床表现、免疫学指标与高PRL血症的关系;采用放射性受体配基结合试验(RLBA)及RT-PCR研究外周血淋巴细胞PRLR变化.结果①63例SLE活动期患者血清PRL水平(14.45±7.25 μg/L)显著高于50例静止期患者(11.79±8.08μg/L)和28例正常人对照组(7.08±6.26 μg/L);②79.37%的活动期患者血清PRL水平在9～51.2μg/L;③113例SLE患者血清PRL水平与dsDNA抗体、SLEDAI活动指数呈线性正相关:④Logistic多元回归研究发现蛋白尿、低C3和高dsDNA抗体滴度与高PRL血症相关;⑤24例SLE活动期患者外周血单一核细胞(PBMC)的PRLR的特异性结合率(SB,5.03%±2.51%)、总结合率(TB,15.34%±6.98%)和mRNA的表达水平(0.85±0.45)均显著高于22例静止期患者(SB 4.18±2.26,TB14.03±6.54%,mRNA 0.58±0.43)和15例正常人对照组(SB 1.62%±1.05%,TB8.19%±1.47%,mRNA 0.20±0.13).结论SLE患者血清PRL轻度升高,PBMC的PRLR mRNA高表达以及相应特异性结合率的增加与SLE的病情活动性相关.
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