Journal of the European Academy of Dermatology and Venereology : JEADV · 2012
Two novel mutations of the NCSTN gene in Chinese familial acne inverse.
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Zhang C, Wang L, Chen L, Ren W, Mei A, Chen X, Deng Y
Аннотация
BACKGROUND: Acne inversa (AI; MIM 142690), or hidradenitis suppurativa (HS), is a type of autosomal-dominant genodermatosis caused by mutations in γ-secretase. The complex of γ-secretase is a transmembrane protease that catalyses the cleavage of a set of membrane proteins and is comprised of four subunits encoded by four genes, including PSEN1, PSENEN, NCSTN and APH1. However, mutations associated with AI vary significantly, and it is important to define the specific mutation with a particular AI patient.
OBJECTIVE: To determine specific mutations in the γ-secretase gene associated with two Chinese AI families.
METHODS: Two families of three generations with apparent AI symptoms were examined through proband analysis. Genomic DNAs of the family members and a cohort of 100 healthy individuals were isolated and subjected to polymerase chain reaction (PCR) and direct DNA sequencing.
RESULTS: Two heterozygous missense mutations, c.647A>C (p.Q216P) in the exon 6, and c.223G>A (p.V75I) in the exon 3 of the NCSTN gene, were identified in the two families respectively. No mutations were found in 100 healthy individuals.
CONCLUSIONS: We have identified two novel mutations within the NCSTN gene associated with AI.
OBJECTIVE: To determine specific mutations in the γ-secretase gene associated with two Chinese AI families.
METHODS: Two families of three generations with apparent AI symptoms were examined through proband analysis. Genomic DNAs of the family members and a cohort of 100 healthy individuals were isolated and subjected to polymerase chain reaction (PCR) and direct DNA sequencing.
RESULTS: Two heterozygous missense mutations, c.647A>C (p.Q216P) in the exon 6, and c.223G>A (p.V75I) in the exon 3 of the NCSTN gene, were identified in the two families respectively. No mutations were found in 100 healthy individuals.
CONCLUSIONS: We have identified two novel mutations within the NCSTN gene associated with AI.