ABSTRACT
@#[摘 要] 目的：探讨核因子κB抑制因子a（NFKBIA）表达与皮肤黑色素瘤（SKCM）患者预后及其与肿瘤微环境免疫浸润的相关性。方法：利用GEPIA2数据库分析正常皮肤和SKCM组织中NFKBIA的表达差异，GEPIA2和Ualcan数据库分析NFKBIA与SKCM预后关系，TIMER和TISIDB数据库分析NFKBIA与SKCM中TIL和免疫调节基因的关系。选用TISCH和CancerSEA数据库从单细胞水平分析NFKBIA与SKCM细胞亚群及其相关的功能状态关联性。选取湖北省荆门市第二人民医院保存的14例SKCM患者的石蜡组织标本，通过免疫组织化学染色法验证SKCM组织和癌旁组织中NFKBIA蛋白的表达水平。结果：NFKBIA在SKCM组织中呈低表达，并且低表达的SKCM患者预后差（P<0.05）。NFKBIA表达与B细胞、CD8+ T细胞、CD4+ T细胞、巨噬细胞、中性粒细胞和DC浸润水平呈正相关关系（均P<0.01）。NFKBIA表达与SKCM中TIL丰度和免疫调节基因呈正相关关系（均P<0.01）。NFKBIA在SKCM单细胞免疫细胞中表达，且与肿瘤微环境中细胞分化和炎症呈正相关关系（R=0.28、0.23，均P<0.05）。免疫组织化学染色结果证实，NFKBIA蛋白在SKCM组织中阳性表达率显著低于癌旁组织（35.71% vs 85.71%，P<0.05）。结论：NFKBIA在SKCM组织中呈低表达，与SKCM免疫细胞浸润相关，可作为SKCM预后的标志物及治疗靶点。
ABSTRACT
Abstract: Inflammatory linear verrucous epidermal nevus and linear psoriasis are sometimes hard to differentiate clinically and pathologically. Although immunohistochemical expression of keratin 10 (K10), K16, Ki-67, and involucrin may be useful for differentiating both entities, these results have been reported in only a few cases. We collected data from 8 patients with inflammatory linear verrucous epidermal nevus, 11 with psoriasis vulgaris, and 8 healthy controls and evaluated immunohistochemical expression of Ki-67, K16, involucrin, and filaggrin among them. Ki-67 and K16 overexpression was similar in inflammatory linear verrucous epidermal nevus and psoriasis vulgaris compared with normal skin. Although staining for involucrin showed discontinuous expression in parakeratotic regions in 4 inflammatory linear verrucous epidermal nevus cases, it was continuous in the other 4 cases and in all psoriasis vulgaris cases. Filaggrin expression was present in hyperkeratotic regions but scarce in parakeratotic areas in both inflammatory linear verrucous epidermal nevus and psoriasis vulgaris. The immunostaining pattern of Ki-67, K16, involucrin, and filaggrin may be insufficient to discriminate inflammatory linear verrucous epidermal nevus from psoriasis vulgaris.