Bosnar Damir, Dekaris Iva, Gabrić Nikica, Markotić Alemka, Lazić Ratimir, Spoljarić Ninoslav
Lions Croatian Eye Bank, Department of Ophthalmology, Holy Ghost General Hospital, Zagreb, Croatia.
Croat Med J. 2006 Feb;47(1):59-66.
To determine pro-inflammatory cytokine secretion from human corneas with different pathology and to establish whether cytokine profile influences corneal graft outcome.
Secretion of both proinflammatory cytokine interleukin (IL)-1alpha and tumor necrosis factor (TNF)-alpha was measured after cultivation of 47 corneas collected from corneal graft recipients suffering from different corneal diseases. Non-inflammatory corneal diseases were keratoconus (n=8), keratoglobus (n=2), bullous keratopathy (n=11), and Groenouw stromal dystrophy type II (n=2), whereas inflammatory included vascularized corneal scar (n=14), rejected graft (n=6), and corneal ulcer (n=4). Corneas were cultivated at 37 degrees C for 24 hours and frozen until cytokine detection was measured by immunoassay. Donor corneas unsuitable for transplantation were used as controls (n=7). Corneal graft recipients were followed at least 18 months and rejection rate was calculated for each group.
The median concentration of IL-1alpha secreted from corneas of recipients with non-inflammatory diseases was 2.47 pg/mm(3) (range, 0.13-9.95). In inflammatory corneal diseases, IL-1alpha concentration was significantly higher (median, 5.92 pg/mm(3); range, 0.48-12.68; P=0.005). IL-1alpha production in controls (median, 0.63 pg/mm3; range, 0.36-1.29 pg/mm(3)) was significantly lower than in inflammatory corneal diseases (P<0.001) and non-inflammatory diseases (P=0.008). Low level of TNF-alpha was detected only in 5 cases of vascularized corneal scars, 3 cases of bullous keratopathy, and 3 cases of graft rejection. Rejection rate was significantly higher in inflammatory than in non-inflammatory group (46% vs <10%, respectively, P=0.008). IL-1alpha and TNF-alpha were absent from all patient's sera, confirming its local intra-ocular production.
Increased production of IL-1alpha in corneal recipients with inflammatory diseases suggests its role in corneal graft rejection in humans.
测定不同病理状态下人角膜促炎细胞因子的分泌情况,并确定细胞因子谱是否影响角膜移植结果。
对47例来自患有不同角膜疾病的角膜移植受者的角膜进行培养后,检测促炎细胞因子白细胞介素(IL)-1α和肿瘤坏死因子(TNF)-α的分泌情况。非炎性角膜疾病包括圆锥角膜(n = 8)、球形角膜(n = 2)、大泡性角膜病变(n = 11)和II型格罗诺夫基质营养不良(n = 2),而炎性疾病包括血管化角膜瘢痕(n = 14)、移植排斥(n = 6)和角膜溃疡(n = 4)。将角膜在37℃培养24小时后冷冻,直至通过免疫测定法检测细胞因子。将不适用于移植的供体角膜用作对照(n = 7)。对角膜移植受者进行至少18个月的随访,并计算每组的排斥率。
非炎性疾病受者角膜分泌的IL-1α的中位浓度为2.47 pg/mm³(范围为0.13 - 9.95)。在炎性角膜疾病中,IL-1α浓度显著更高(中位值为5.92 pg/mm³;范围为0.48 - 12.68;P = 0.005)。对照组中IL-1α的产生(中位值为0.63 pg/mm³;范围为0.36 - 1.29 pg/mm³)显著低于炎性角膜疾病(P < 0.001)和非炎性疾病(P = 0.008)。仅在5例血管化角膜瘢痕、3例大泡性角膜病变和3例移植排斥病例中检测到低水平的TNF-α。炎性组的排斥率显著高于非炎性组(分别为46%对<10%,P = 0.008)。所有患者血清中均未检测到IL-1α和TNF-α,证实其为眼内局部产生。
炎性疾病角膜受者中IL-1α产生增加表明其在人类角膜移植排斥中起作用。