NLRP3炎症复合体与原发性青光眼视神经损伤程度相关性

Correlation between NLRP3 inflammation complex and the degree of optic nerve injury in primary glaucoma

摘要:

目的：探讨NOD样受体蛋白3(NLRP3)炎症复合体与原发性开角型青光眼(POAG)视神经损伤程度的相关性。

方法：选取2016-05/2017-05我院收治并确诊的POAG患者65例98眼，纳入同期30例49眼白内障患者为对照组。根据视野平均缺损(MD)分为轻(A组)、中(B组)及重度损伤(C组)3组。ELISA检测血清IL-1β、IL-18浓度； 流式细胞仪检测血液中NLRP3、凋亡相关微粒蛋白(ASC)、胱冬肽酶-1(Caspase-1)阳性巨噬细胞比例。

结果：POAG组IL-1β、IL-18浓度及NLRP3、ASC、Caspase-1阳性细胞比例均高于对照组(P<0.05)。C组IL-1β、IL-18浓度及NLRP3、ASC、Caspase-1阳性细胞比例均显著高于A、B组(P<0.05)。POAG患者血清中IL-1β、IL-18浓度与视野损伤程度呈正相关(r=0.432、0.765)； NLRP3、ASC、Caspase-1的阳性细胞比例与视野损伤程度呈正相关(r=0.517、0.481、0.340)。

结论：血清IL-1β、IL-18浓度及NLRP3、ASC、Caspase-1阳性巨噬细胞比例与POAG患者视神经损伤程度呈正相关。

Abstract:

AIM: To investigate the correlation between NLRP3 inflammation and optic nerve injury in primary open-angle glaucoma(POAG).

METHODS: Totally 65 POAG patients(98 eyes)in our hospital from May 2016 to May 2017 were selected, meanwhile 30 cataract patients(49 eyes)were as control group. Visual impairment was judged according to the mean defect value(MD)and divided into mild(group A), moderate(group B)and severe(group C)groups. The quality of IL-1β and IL-18 in plasma was detected by ELISA, and proportion of NLRP3, ASC and Caspase-1 positive macrophages was measured by flow cytometry.

RESULTS: The levels of IL-1β and IL-18 and the proportion of NLRP3, ASC and Caspase-1 positive cells in POAG group were obviously higher than those in control group(P<0.05). The levels of IL-1β and IL-18 and the proportion of NLRP3, ASC and Caspase-1 positive cells in group C were highest in subgroups(P<0.05). The serum levels of IL-1β and IL-18 in POAG patients were positively correlated with visual field injury(r=0.432, 0.765), and the proportion of positive cells of NLRP3, ASC and Caspase-1 was positively correlated with visual field injury(r=0.517, 0.481, 0.340).

CONCLUSION: Serum levels of IL-1β, IL-18 and the proportion of NLRP3, ASC and Caspase-1 positive macrophages are positively correlated with the degree of optic nerve injury in POAG patients.