Department of Dermatology, Osaka City University Graduate School of Medicine, Osaka, Japan.
Department of Dermatology, Kurume University School of Medicine, Fukuoka, Japan.
J Invest Dermatol. 2017 Dec;137(12):2462-2464. doi: 10.1016/j.jid.2017.09.001.
Linear IgA bullous dermatosis is characterized by IgA autoantibodies reactive with LAD-1 and LABD97, truncated forms of BP180 (type XVII collagen), but not with full-length BP180. Toyonaga et al. determined that cleavage within both the C-terminal region and NC16A domain plays a role in exposure of neoepitopes on the 15th collagenous domain of BP180.
线性 IgA 大疱性皮病的特征是 IgA 自身抗体与 LAD-1 和 LABD97(BP180 [XVII 型胶原]的截断形式)反应,但不与全长 BP180 反应。Toyonaga 等人确定,C 端区域和 NC16A 结构域内的裂解在 BP180 的第 15 个胶原结构域上暴露新表位方面发挥作用。