Relationship between filaggrin and dermatoses: an update

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Author:
CHENG Fang(Institute of Dermatology, Department of Dermatology, First Affiliated Hospital, Anhui Medical University, Hefei 230032, China)
XIAO Feng-li(Institute of Dermatology, Department of Dermatology, First Affiliated Hospital, Anhui Medical University, Hefei 230032, China)
Journal Title:
International Journal of Dermatology and Venereology
Issue:
Volume 38, Issue 05, 2012
DOI:
10.3760/cma.j.issn.1673-4173.2012.05.016
Key Word:
Intermediate filament proteins; Mutation; Skin diseases

Abstract´╝Ü Filaggrin (FLG) is an essential structural protein in skin barrier,which provides protection against various environmental harmful substances.Mutations or congenital defect of FLG-related genes will affect the protein expression of FLG,and result in a series of dermatoses characterized by skin barrier dysfunction.It has been demonstrated that FLG-related gene mutations are evidently associated with the development of atopic dermatitis and ichthyosis vulgaris,and possibly associated with alopecia areata and pachyonychia congenita syndrome,and null mutations of FLG-related genes may lower the age at onset of nickel dermatitis and increase nickel sensitivity.In short,FLG mutations may be associated with the development of many skin diseases,but more research is needed to determine whether FLG mutations are a specific pathogenetic factor for some skin disorders.

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