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Park JS, Saeidian AH, Youssefian L, Kondratuk KE, Pride HB, Vahidnezhad H, Uitto J. Inherited ichthyosis as a paradigm of rare skin disorders: Genomic medicine, pathogenesis, and management. J Am Acad Dermatol 2023; 89:1215-1226. [PMID: 35963288 DOI: 10.1016/j.jaad.2022.08.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Revised: 08/02/2022] [Accepted: 08/05/2022] [Indexed: 11/26/2022]
Abstract
Great advances have been made in the field of heritable skin disorders using next-generation sequencing (NGS) technologies (ie, whole-genome sequencing, whole-exome sequencing, whole-transcriptome sequencing, and disease-targeted multigene panels). When NGS first became available, the cost and lack of access to these technologies were limiting factors; however, with decreasing sequencing costs and the expanding knowledge base of genetic skin diseases, fundamental awareness of NGS has become prudent. The heritable ichthyoses comprise a genotypically and phenotypically heterogeneous group of monogenic keratinization disorders characterized by persistent scaling, with at least 55 distinct genes currently implicated in causing nonsyndromic and syndromic forms of the disease. By providing a simplified overview of available NGS techniques and applying them in the context of ichthyosis, one of the most common genodermatoses, we hope to encourage dermatologists to offer, when appropriate, genetic testing earlier in patients with unsolved presentations. With the aid of NGS, dermatologists can provide diagnostic certainty in cases of suspected genodermatoses and offer potentially life-changing genome-guided and targeted therapies as they become available.
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Affiliation(s)
- Jason S Park
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Geisinger Commonwealth School of Medicine, Scranton, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Amir Hossein Saeidian
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | - Leila Youssefian
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania
| | | | - Howard B Pride
- Department of Dermatology, Geisinger Medical Center, Danville, Pennsylvania
| | - Hassan Vahidnezhad
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
| | - Jouni Uitto
- Department of Dermatology and Cutaneous Biology, Thomas Jefferson University, Philadelphia, Pennsylvania; Jefferson Institute of Molecular Medicine, Thomas Jefferson University, Philadelphia, Pennsylvania.
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Moar A, Bruni M, Schena D, Rigotti E, Colato C, Novelli A, Cesario C, Girolomoni G. Netherton syndrome plus atopic dermatitis: Two new genetic mutations in the same patient. Clin Case Rep 2021; 9:e05108. [PMID: 34853685 PMCID: PMC8614091 DOI: 10.1002/ccr3.5108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/04/2021] [Accepted: 11/03/2021] [Indexed: 11/26/2022] Open
Abstract
A child who comes to our attention for the appearance of erythematous, scaly lesions localized to the upper and lower limbs for 2 months. Histological features suggested ichthyosiform disease and concomitant mutations in the SPINK5 and FLG2 genes confirmed Netherton syndrome with severe atopic manifestations.
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Affiliation(s)
- Agata Moar
- Section of Dermatology and VenereologyDepartment of MedicineUniversity of VeronaVeronaItaly
| | - Manfredo Bruni
- Section of Dermatology and VenereologyDepartment of MedicineUniversity of VeronaVeronaItaly
| | - Donatella Schena
- Section of Dermatology and VenereologyDepartment of MedicineUniversity of VeronaVeronaItaly
| | - Erika Rigotti
- Department of Surgical SciencesDentistry, Gynecology and PediatricsUniversity of VeronaPediatric ClinicVeronaItaly
| | - Chiara Colato
- Section of PathologyDepartment of Diagnostics and Public HealthUniversity of VeronaVeronaItaly
| | - Antonio Novelli
- Translational Cytogenomics Research UnitBambino Gesù Children's HospitalIRCCSRomeItaly
| | - Claudia Cesario
- Translational Cytogenomics Research UnitBambino Gesù Children's HospitalIRCCSRomeItaly
| | - Giampiero Girolomoni
- Section of Dermatology and VenereologyDepartment of MedicineUniversity of VeronaVeronaItaly
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