TY - JOUR
T1 - Cutaneous mosaicism, in KRT1 pI479T patient, caused by the somatic loss of the wild-type allele, leads to the increase in local severity of the disease
AU - Palombo, R.
AU - Giannella, E.
AU - Didona, B.
AU - Annicchiarico-Petruzzelli, M.
AU - Melino, G.
AU - Terrinoni, A.
PY - 2015
Y1 - 2015
N2 - Background: Epidermolytic ichthyosis (BCIE, OMIM 113800), is an autosomal dominant disorder of the skin caused by mutations in keratin genes KRT1 and KRT10. We present two sporadic patients showing a mild diffuse ichthyosis with palmoplantar keratoderma. Interestingly, one of them shows a significant hyperkeratosis of palms and soles similar to those present in the Meleda disease (OMIM 248300). Objective: In this paper we would clarify the genetic difference between the two patients, giving rise to the different phenotype. Methods: Clinical evaluation, followed by histological and molecular analysis has been established for these patients. Results: We demonstrated the presence of a genetic cutaneous mosaicism. Both patients carry the KRT1 pI479T substitution, but in the palmoplantar areas of one of them, only the mutated allele is expressed (hemizygous). This leads to highlight a new type of cutaneous mosaic, the palmoplantar mosaicism.
AB - Background: Epidermolytic ichthyosis (BCIE, OMIM 113800), is an autosomal dominant disorder of the skin caused by mutations in keratin genes KRT1 and KRT10. We present two sporadic patients showing a mild diffuse ichthyosis with palmoplantar keratoderma. Interestingly, one of them shows a significant hyperkeratosis of palms and soles similar to those present in the Meleda disease (OMIM 248300). Objective: In this paper we would clarify the genetic difference between the two patients, giving rise to the different phenotype. Methods: Clinical evaluation, followed by histological and molecular analysis has been established for these patients. Results: We demonstrated the presence of a genetic cutaneous mosaicism. Both patients carry the KRT1 pI479T substitution, but in the palmoplantar areas of one of them, only the mutated allele is expressed (hemizygous). This leads to highlight a new type of cutaneous mosaic, the palmoplantar mosaicism.
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U2 - 10.1111/jdv.13153
DO - 10.1111/jdv.13153
M3 - Article
AN - SCOPUS:84928191808
JO - Journal of the European Academy of Dermatology and Venereology
JF - Journal of the European Academy of Dermatology and Venereology
SN - 0926-9959
ER -