alexa Wet Earwax Phenotype Determined by ABCC11 Polymorphism is a Highrisk Factor for Acne | OMICS International | Abstract
ISSN: 2155-9554

Journal of Clinical & Experimental Dermatology Research
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Review Article

Wet Earwax Phenotype Determined by ABCC11 Polymorphism is a Highrisk Factor for Acne

Yasuyuki Sumikawa1*, Hitoshi Takahashi2, Masuko Sumikawa3, Kenji Kusatake2, Sakae Kaneko2, Toshiharu Yamashita1 and Eishin Morita2

1Department of Dermatology, School of Medicine, Sapporo Medical University, Japan

2Department of Dermatology, Faculty of Medicine, Shimane University, Japan

3Nursing subject, School of Health Sciences, Sapporo Medical University, Japan

*Corresponding Author:
Yasuyuki Sumikawa
Department of Dermatology
School of Medicine
Sapporo Medical University N1W16, Chuo-ku
Sapporo, Hokkaido, Japan
Tel: +81-11-611-2111
Fax: +81-11-613-37398
E mail: [email protected]; [email protected]

Received date: October 18, 2013; Accepted date: November 09, 2013; Published date: November 16, 2013

Citation: Sumikawa Y, Takahashi H, Sumikawa M, Kusatake K, Kaneko S, et al. (2013) Wet Earwax Phenotype Determined by ABCC11 Polymorphism is a High-risk Factor for Acne. J Clin Exp Dermatol Res 4:193. doi:10.4172/2155-9554.1000193

Copyright: © 2013 Sumikawa Y, 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.


Background: The type of earwax-wet or dry-is determined by a single nucleotide polymorphism (SNP)-538G>A (Gly180Arg)-in the ABCC gene (ABCC11), which encodes an ATP-binding cassette domain. Since axillary osmidrosis is closely related to earwax type, some dermatoses may be associated with earwax type.

Objectives: We analyzed the association between the prevalence of a series of dermatoses and earwax phenotype. Further, we investigated ABCC11 localization in the skin.

Methods: A total of 660 patients who visited Nopporo Dermatology Clinic in Hokkaido were enrolled in this study. The patients were interviewed to determine their earwax type-wet or dry-and a medical practitioner diagnosed dermatoses. The association between the prevalence of dermatoses and earwax type was analyzed statistically. ABCC11 localization in the skin was immunohistochemically evaluated using anti-ABCC11 antibody.

Results: Wet earwax type was more prevalent in patients with acne than in those without acne and the odds ratio was 5.36. On the other hand, dry earwax was more prevalent in patients with atopic dermatitis than in those without it, and the odds ratio was 1.86, which was non-significant. In the immunohistochemical staining, ABCC11 was found to be strongly expressed in the sebaceous glands of wet earwax type skin specimen.

Conclusion: Wet earwax phenotype is a high-risk factor for acne. Therefore, hyper-secretion of lipids from sebaceous glands elicited by ABCC11 may play an important role in the pathogenesis of acne.


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