Gurel Gulhan, Cilingir Oguz, Kutluay Ozden, Arslan Serap, Sahin Sevinc, Colgecen Emine
Department of Dermatology, Bozok University School of Medicine, Yozgat, Turkey.
Department of Medical Genetics, Osmangazi University School of Medicine, Eskişehir, Turkey.
Eurasian J Med. 2019 Jun;51(2):206-208. doi: 10.5152/eurasianjmed.2018.18215. Epub 2018 Nov 30.
Mal de Meleda, also known as keratoderma palmoplantaris transgrediens, is a rare type of autosomal recessive palmoplantar keratoderma. A 19-year-old male presented with a congenital yellowish discoloration and thickening of both palms and soles of the feet. His family history revealed that there was no consanguinity between the mother and the father and that the patient had three healthy brothers. The second- and third-degree relatives, five females and one male, also exhibited similar skin findings. From the isolated DNA samples, the extrinsic regions of the SLURP1 gene were screened using the sequence analysis and the Sanger sequencing was performed with the 3130 Sequence Analyzer. Results of this analysis show that a p.Arg 96 Pro (R96P) (c.287 CGA>CCA) homozygous missense point mutation was detected on the SLURP 1 (a secreted toxin-like mammalian lymphocyte antigen 6/urokinase-type plasminogen activator receptor-related protein 1) gene of the patients, while heterozygous p.Arg 96 Pro (R96P) (c.287 CGA>CCA) mutation was detected in the mother, father, and brothers. Our search of the Human Genome Mutation Database and previous literature revealed no reports of this mutation in mal de Meleda. We report this case due to the identification of a novel gene mutation in a patient with mal de Meleda, a palmoplantar keratoderma.
梅勒达病,也称为进行性掌跖角化病,是一种罕见的常染色体隐性遗传性掌跖角化病。一名19岁男性患者,双掌和双足底先天性发黄且增厚。其家族史显示,父母无血缘关系,患者有三个健康的兄弟。其二级和三级亲属,五名女性和一名男性,也有类似的皮肤表现。从提取的DNA样本中,使用序列分析对SLURP1基因的外显子区域进行筛选,并使用3130序列分析仪进行桑格测序。分析结果显示,在患者的SLURP 1(一种分泌型毒素样哺乳动物淋巴细胞抗原6/尿激酶型纤溶酶原激活物受体相关蛋白1)基因上检测到p.Arg 96 Pro(R96P)(c.287 CGA>CCA)纯合错义点突变,而在其母亲、父亲和兄弟中检测到杂合的p.Arg 96 Pro(R96P)(c.287 CGA>CCA)突变。我们检索人类基因组突变数据库和既往文献,未发现梅勒达病中有该突变的报道。我们报告此病例是因为在一名梅勒达病(一种掌跖角化病)患者中鉴定出一种新的基因突变。