Novel Mutations inGene in Two Chinese Acne Inversa Families Manifested as Familial Multiple Comedones and Dowling-Degos Disease / 中华医学杂志(英文版)
Chinese Medical Journal
; (24): 2834-2839, 2016.
Article
in En
| WPRIM
| ID: wpr-230871
Responsible library:
WPRO
ABSTRACT
<p><b>BACKGROUND</b>Acne inversa (AI), also called hidradenitis suppurativa, is a chronic, inflammatory, recurrent skin disease of the hair follicle. Familial AI shows autosomal-dominant inheritance caused by mutations in the γ-secretase genes. This study was aimed to identify the specific mutations in the γ-secretase genes in two Chinese families with AI.</p><p><b>METHODS</b>In this study, two Chinese families with AI were investigated. All the affected individuals in the two families mainly manifested with multiple comedones, pitted scars, and a few inflammatory nodules on their face, neck, trunk, axilla, buttocks, upper arms, and thighs. Reticulate pigmentation in the flexures areas resembled Dowling-Degos disease clinically and pathologically. In addition, one of the affected individuals developed anal canal squamous cell carcinoma. Molecular mutation analysis of γ-secretase genes including PSENEN, PSEN1, and NCSTN was performed by polymerase chain reaction and direct DNA sequencing.</p><p><b>RESULTS</b>Two novel mutations of PSENEN gene were identified, including a heterozygous missense mutation c.194T>G (p.L65R) and a splice site mutation c.167-2A>G.</p><p><b>CONCLUSIONS</b>The identification of the two mutations could expand the spectrum of mutations in the γ-secretase genes underlying AI and provide valuable information for further study of genotype-phenotype correlations.</p>
Full text:
1
Index:
WPRIM
Main subject:
Pedigree
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Skin Abnormalities
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Skin Diseases, Genetic
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DNA Mutational Analysis
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Skin Diseases, Papulosquamous
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Hyperpigmentation
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Hidradenitis Suppurativa
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Diagnosis
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Amyloid Precursor Protein Secretases
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Genetics
Type of study:
Diagnostic_studies
Limits:
Female
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Humans
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Male
Language:
En
Journal:
Chinese Medical Journal
Year:
2016
Type:
Article