目的：通过分析比较人白细胞抗原-B27(HLA-B27)阳性及阴性葡萄膜炎患者外周血中炎症因子的表达变化情况，探讨其相关性。

方法：回顾性研究。选取2020-01/2022-04我院初诊为葡萄膜炎的患者76例，采集静脉血分离有核细胞，用流式细胞术(直接免疫荧光法)检测HLA-B27，分成HLA-B27阳性组(≥90%)35例和HLA-B27阴性组(≤5%)41例。提取全血RNA，用RT-qPCR方法检测并比较白细胞介素-1β(IL-1β)、白细胞介素-6(IL-6)、白细胞介素-10(IL-10)、蛋白酶激活受体2(PAR2)、肿瘤坏死因子-α(TNF-α)、白细胞介素增强因子-3(ILF3)mRNA表达。

结果：两组患者IL-1β、IL-10、PAR2、TNF-α mRNA表达均无差异(均P>0.05)。HLA-B27阳性组患者IL-6 mRNA较HLA-B27阴性组升高，ILF3 mRNA较HLA-B27阴性组降低(均P<0.05)。

结论：HLA-B27阳性相关的葡萄膜炎患者外周血中炎性指标IL-6表达显著升高，ILF3较HLA-B27阴性组表达下降，可作为其辅助诊疗指标。

METHODS: All 76 patients first diagnosed with uveitis in our hospital from January 2020 to April 2022 were screened in this retrospective study. Nucleated cells were isolated from human venous blood, and HLA-B27 was detected by flow cytometry(direct immunofluorescence), the patients were divided into the HLA-B27-positive group(≥90%)in 35 cases and HLA-B27-negative group(≤5%)in 41 cases. The whole blood RNA was extracted. The mRNA expression of interleukin-1β(IL-1β), interleukin-6(IL-6), interleukin-10(IL-10), protease activated receptor 2(PAR2), tumor necrosis factor-α(TNF-α), interleukin enhancer-binding factor -3(ILF3)were detected and compared by RT-qPCR.

RESULTS: The IL-1β, IL-10, PAR2 and TNF-α mRNA were observed no difference between the two groups of patients(all P>0.05). The IL-6 mRNA in the patients of HLA-B27-positive group was higher than in the HLA-B27-negative group, the ILF3 mRNA was lower than that in the negative group(all P<0.05).

CONCLUSION: The expression level of IL-6 in peripheral blood was significantly increased and ILF3 was decreased in HLA-B27-positive group, which can be used as auxiliary indicators for diagnosis and treatment of HLA-B27-positive uveitis.