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PLoS One. 2013 Oct 9;8(10):e75355. doi: 10.1371/journal.pone.0075355. eCollection 2013.

Distinguishing ichthyoses by protein profiling.

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1
Department of Environmental Toxicology and Forensic Science Graduate Program, University of California Davis, Davis, California, United States of America.

Abstract

To explore the usefulness of protein profiling for characterization of ichthyoses, we here determined the profile of human epidermal stratum corneum by shotgun proteomics. Samples were analyzed after collection on tape circles from six anatomic sites (forearm, palm, lower leg, forehead, abdomen, upper back), demonstrating site-specific differences in profiles. Additional samples were collected from the forearms of subjects with ichthyosis vulgaris (filaggrin (FLG) deficiency), recessive X-linked ichthyosis (steroid sulfatase (STS) deficiency) and autosomal recessive congenital ichthyosis type lamellar ichthyosis (transglutaminase 1 (TGM1) deficiency). The ichthyosis protein expression patterns were readily distinguishable from each other and from phenotypically normal epidermis. In general, the degree of departure from normal was lower from ichthyosis vulgaris than from lamellar ichthyosis, parallel to the severity of the phenotype. Analysis of samples from families with ichthyosis vulgaris and concomitant modifying gene mutations (STS deficiency, GJB2 deficiency) permitted correlation of alterations in protein profile with more complex genetic constellations.

PMID:
24130705
PMCID:
PMC3793978
DOI:
10.1371/journal.pone.0075355
[Indexed for MEDLINE]
Free PMC Article
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