Section of Pathological Anatomy, Department of Human Pathology and Oncology, University of Siena, Policlinico Santa Maria alle Scotte, Via delle Scotte 6, 53100 Siena, Italy.
Mediators Inflamm. 2010;2010:350304. doi: 10.1155/2010/350304. Epub 2010 Jun 30.
Cell-mediated immunity is considered to be normal in Darier's Disease (DD), an inherited skin disorder complicated by skin infections. To date, there are no investigations on the local inflammatory infiltrate in DD skin lesions. In this immunohistochemical study we characterized and quantified it, making comparisons with two other inflammatory skin disorders, that is, pemphigus vulgaris (PV) and lichen ruber planus (LRP), and with the normal skin (NSk). We found a significant (P < .05) decrease of CD1a+ Langerhans cells (LCs) in DD, compared to PV, LRP, and NSk, and of CD123+ plasmacytoid dendritic cells (pDCs), compared to PV and LRP. We hypothesize that the genetic damage of keratinocytes might result in a loss of some subsets of dendritic cells and, consequently, in an impaired local immune response, which might worsen the infections that inevitably occur in this disease.
细胞介导的免疫被认为是正常的 Darier 病(DD),一种由皮肤感染引起的遗传性皮肤疾病。迄今为止,尚未对 DD 皮肤损伤中的局部炎症浸润进行调查。在这项免疫组织化学研究中,我们对其进行了特征描述和定量分析,并与另外两种炎症性皮肤疾病,即寻常型天疱疮(PV)和扁平苔藓(LRP),以及正常皮肤(NSk)进行了比较。与 PV、LRP 和 NSk 相比,我们发现 DD 中的 CD1a+朗格汉斯细胞(LC)和 CD123+浆细胞样树突状细胞(pDC)显著减少(P<0.05)。我们假设角质形成细胞的遗传损伤可能导致一些树突状细胞亚群的丧失,从而导致局部免疫反应受损,这可能使该疾病不可避免发生的感染恶化。