Int. J. Mol. Sci. 2013, 14(10), 19385-19398; doi:10.3390/ijms141019385
Review

Keratin K15 as a Biomarker of Epidermal Stem Cells

Centre for Clinical and Diagnostic Oral Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London E1 2AD, UK
* Author to whom correspondence should be addressed.
Received: 21 June 2013; in revised form: 5 September 2013 / Accepted: 10 September 2013 / Published: 25 September 2013
(This article belongs to the Special Issue Molecular Research of Epidermal Stem Cells)
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Abstract: Keratin 15 (K15) is type I keratin protein co-expressed with the K5/K14 pair present in the basal keratinocytes of all stratified epithelia. Although it is a minor component of the cytoskeleton with a variable expression pattern, nonetheless its expression has been reported as a stem cell marker in the bulge of hair follicles. Conversely, suprabasal expression of K15 has also been reported in both normal and diseased tissues, which is inconsistent with its role as a stem cell marker. Our recently published work has given evidence of the molecular pathways that seem to control the expression of K15 in undifferentiated and differentiated cells. In this article, we have critically reviewed the published work to establish the reliability of K15 as an epidermal stem cell marker.
Keywords: transit-amplifying cells; keratinocyte differentiation; basal keratinocytes; intermediate filaments; pluripotent cells

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MDPI and ACS Style

Bose, A.; Teh, M.-T.; Mackenzie, I.C.; Waseem, A. Keratin K15 as a Biomarker of Epidermal Stem Cells. Int. J. Mol. Sci. 2013, 14, 19385-19398.

AMA Style

Bose A, Teh M-T, Mackenzie IC, Waseem A. Keratin K15 as a Biomarker of Epidermal Stem Cells. International Journal of Molecular Sciences. 2013; 14(10):19385-19398.

Chicago/Turabian Style

Bose, Amrita; Teh, Muy-Teck; Mackenzie, Ian C.; Waseem, Ahmad. 2013. "Keratin K15 as a Biomarker of Epidermal Stem Cells." Int. J. Mol. Sci. 14, no. 10: 19385-19398.

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