alexa Immunohistochemical Expression of c-kit Receptor (CD117) in Two Pigmentary Disorders | OMICS International
ISSN: 2155-9554

Journal of Clinical & Experimental Dermatology Research
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Research Article

Immunohistochemical Expression of c-kit Receptor (CD117) in Two Pigmentary Disorders

Nagwa M Elwan1, Amal A El-Ashmawy2*, Shereen F Gheida2 and Omnia K Rizk3

1Professor of Dermatology and Venereology, Faculty of Medicine, Tanta University, Egypt

2Assistant Professor of Dermatology and Venereology, Faculty of Medicine, Tanta University, Egypt

3Assistant Professor of Pathology, Faculty of Medicine, Tanta University, Egypt

*Corresponding Author:
Amal Ahmad El-Ashmawy
Assistant Professor of Dermatology and Venereology
Faculty of Medicine, Tanta University, Egypt
Tel: 01271057154
Fax: 0403280141
Email: [email protected]

Received date: September 23, 2013; Accepted date: October 15, 2013; Published date: October 22, 2013

Citation: Elwan NM, El-Ashmawy AA, Gheida SF, Rizk OK (2013) Immunohistochemical Expression of c-kit Receptor (CD117) in Two Pigmentary Disorders. J Clin Exp Dermatol Res 4:190. doi:10.4172/2155-9554.1000190

Copyright: © 2013 Elwan NM, 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

Stem Cell Factor (SCF) is generally thought to be an important regulator of melanocyte and mast cell survival, migration and proliferation. The c-kit receptor (CD117) may play a role in many skin disorders with dyspigmentation. The aim of this study was to assess the immunohistochemical expression of CD117 in some pigmentary disorders such as melasma and vitiligo. The study included a total of 40 patients were divided into two groups; melasma group: included (20) patients and vitiligo group: included (20) patients, in addition to a control group which included (20) healthy skin specimens were obtained during plastic operations. The severity of melasma and vitiligo skin lesions was measured by modified melasma and area severity index (MASI) and vitiligo area severity index (VASI) scores respectively. Tissue biopsies were taken from all the participant and stained by haematoxylin and eosin (H and E) and immunohistochemical staining for c-kit antibody. Normal skin: The intensity of c-kit expression was mild to moderate positivity Melasma: The intensity of c-kit expression showed significant increase when its expression was compared with control group. There was statistically significant positive correlation between the intensity of c-kit expression in both melasma groups when compared with modified MASI score Vitiligo: c-kit expression was negative in the epidermis. There was significant decrease in the intensity of c-kit expression in vitiligo when compared with control group. There was statistically significant negative correlation between the intensity of c-kit expression in both vitiligo groups when compared with VASI score we concluded that c-kit may play a role in the pathogenesis of some dyspigmentary disorders as melasma and vitiligo. It could be used as a marker for melasma severity. So, c-kit is may be considered the main target in the treatment of these diseases.

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