The ABCA12 gene encodes an ATP-binding cassette transporter vital to skin barrier function. In keratinocytes, transports ceramides into the lumen of lamellar bodies as part widely conserved water system. Alterations in are associated with autosomal recessive congenital ichthyoses: harlequin ichthyosis, non-bullous ichthyosiform erythroderma, and ichthyosis. We report a 4-month-old female who pr...

Lamellar ichthyosis is a keratinization disorder caused by TGM1, Ichthyin and several other gene mutations. A new treatment option is liarozole, which blocks the cytochrome P450 (CYP26)-mediated catabolism of endogenous all-trans retinoic acid. This study focuses on the expression of retinoid-related genes in ichthyotic epidermis before and after treatment with oral liarozole. We first compared...

The ichthyoses comprise a group of keratinisation disorders characterised by generalised scaling of the skin. Lamellar ichthyosis (LI) is usually manifested at birth as a collodion baby with ectropion/eclabion. Collodion membrane means encased in a tight shiny covering. It is characterised afterwards by non-bullous scaling of the whole integument with variable erythroderma. LI is a major subtyp...

Lamellar ichthyosis (LI), considered an autosomal recessive monogenic genodermatosis, has an incidence of approximately 1 in 250,000. Usually associated with mutations in the transglutaminase gene ( ), mutations in TGM1 six other genes have, less frequently, been shown to be causative. Two siblings, born in a collodion membrane, presented with fish like scales all over the body. Karyotyping rev...

Lamellar ichthyosis is a congenital recessive skin disorder characterized by generalized scaling and hyperkeratosis. It is caused by mutations in the TGM1 gene that encodes the transglutaminase 1 (TGase 1) enzyme, which is critical for the assembly of the cornified cell envelope in terminally differentiating keratinocytes. TGase 1 is a complex enzyme existing as both cytosolic and membrane-boun...

Lamellar ichthyosis type 2 (LI2) is a rare autosomal recessive skin disorder for which a gene has been localized on chromosome 2q33-35. We report the identification of five missense mutations in the ABCA12 gene in nine families from Africa affected by LI2. The mutations were homozygous in eight consanguineous families and heterozygous in one non-consanguineous family. Four of these mutations ar...