alexa Eccrine Sweat Duct Occlusion by Staphylococcal-Derived Biofilms: An Unexpected Signature Finding of Eczema in Dermatologic Diseases | OMICS International | Abstract
ISSN: 2155-9554

Journal of Clinical & Experimental Dermatology Research
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Research Article

Eccrine Sweat Duct Occlusion by Staphylococcal-Derived Biofilms: An Unexpected Signature Finding of Eczema in Dermatologic Diseases

Herbert Allen*, Dasgupta TS, Todd SP, Cusack CA and Joshi S

Department of Dermatology, Drexel University College of Medicine, Philadelphia, PA United states

*Corresponding Author:
Allen H
Department of Dermatology
Drexel University College of Medicine
219 N. Broad St, 4th floor, Philadelphia
PA 19107, United States
Tel: 215-72-5550
Email: [email protected]

Received Date: October 13, 2015; Accepted Date: November 17, 2015; Published Datea: November 27, 2015

Citation: Allen H, Dasgupta TS, Todd SP, Cusack CA, Joshi S (2015) Eccrine Sweat Duct Occlusion by Staphylococcal-Derived Biofilms: An Unexpected Signature Finding of Eczema in Dermatologic Diseases. J Clin Exp Dermatol Res 6:310. doi: 10.4172/2155-9554.10000310

Copyright: © 2015 Allen H, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

We believe that axillary granular parakeratosis, tinea pedis, and Seborrheic dermatitis are likely to be variants of eczema. All had culturable staphylococci capable of producing biofilms, as in eczema. This was confirmed on XTT assays, Congo red cultures, and PCR for gene analysis of the biofilm-forming icaD and aap genes. The pathology showed eccrine ductal occlusion that was noted on H+E and PAS stains (PAS stains positively the extracellular polysaccharide substance that makes up the bulk of the biofilm.) Toll-like receptor 2 (TLR 2) activities was found in the stratum corneum adjacent to the sweat ducts and not in its control location in the basal zone. The stratum corneum seemingly becomes altered by the fungi, yeasts, or tiny granules instead of by the filaggrin gene (1st in the double hit phenomenon); and, the sweat ducts become occluded causing activation of TLR 2. This leads to activation of the innate immune system (2nd hit), just as in eczema. Further, treatment with the mild topical corticoids and/or moisturizers helps restore the integrity of the skin.

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