title: A novel mutation in TRPV3 gene causes atypical familial Olmsted syndrome.
abstract: Olmsted syndrome (OS) is a rare keratinization disorder, typically characterized by two primary diagnostic hallmarks--mutilating palmoplanter and periorificial keratoderma. However, there's a growing body of literature reporting on the phenotypic diversity of OS, including the absence of aforementioned hallmarks and the presence of some unusual clinical features. Here we presented an atypical familial case of OS that could be confused with Huriez syndrome due to the presence of a scleodactyly-like appearance and tapered fingers in the proband. We ruled out this possibility and made a definitive diagnosis of OS based on clinical features and a genetic assay. Recently, mutations in TRPV3 associated with autosomal dominant or recessive OS continued to be reported, thus conducing to clarifying the underlying relationship between the genotype and phenotype of OS. So we further explored the genotype-phenotype correlation by integrating functionl assays with in silico predictions. Our research not only redefined the phenotypic spectrum of OS, but also provided concrete molecular insights into how mutations in a single gene can lead to significant differences in the severity of this rare disease.
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Ni
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Yan
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Ruhong
authors.initials: R
authors.lastname: Cheng
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Jianying
authors.initials: J
authors.lastname: Liang
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Dan
authors.initials: D
authors.lastname: Deng
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Wang
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Ming
authors.initials: M
authors.lastname: Li
authors.affiliation: Department of Dermatology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai 200092, China.
authors.forename: Zhirong
authors.initials: Z
authors.lastname: Yao
mesh_terms: D000328:Adult; D000368:Aged; D044466:Asian People; D001483:Base Sequence; D002648:Child; D004252:DNA Mutational Analysis; D007644:Darier Disease / Q000175:diagnosis* / Q000208:ethnology / Q000235:genetics / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D015870:Gene Expression; D056726:Genetic Association Studies; D006801:Humans; D007645:Keratoderma, Palmoplantar / Q000175:diagnosis* / Q000208:ethnology / Q000235:genetics / Q000473:pathology; D007642:Keratosis / Q000175:diagnosis / Q000208:ethnology / Q000235:genetics / Q000473:pathology; D008297:Male; D008958:Models, Molecular; D009154:Mutation; D010375:Pedigree; D017433:Protein Structure, Secondary; D012594:Scleroderma, Localized / Q000175:diagnosis / Q000208:ethnology / Q000235:genetics / Q000473:pathology; D012720:Severity of Illness Index; D012867:Skin / Q000378:metabolism / Q000473:pathology; D012878:Skin Neoplasms / Q000175:diagnosis / Q000208:ethnology / Q000235:genetics / Q000473:pathology; D050916:TRPV Cation Channels / Q000737:chemistry / Q000235:genetics*
chemical_list: D050916:TRPV Cation Channels; C459445:TRPV3 protein, human