Analysis of T cell receptor (TCR) BV-gene clonotypes in NC/Nga mice developing dermatitis resembling human atopic dermatitis.

Abstract:

BACKGROUND:Our previous study showed that T cells in skin lesions of human atopic dermatitis (AD) had oligoclonal accumulation, indicating the involvement of antigen-specific immune reactions at those sites. Recently, NC/Nga mice, which develop skin lesions similar to AD, have been proposed as a model for that disease. OBJECTIVE:To clarify whether NC/Nga mice are suitable as a model for human AD from the viewpoint of their antigen-specific immune responses. METHODS:Reverse transcription-polymerase chain reaction (RT-PCR) and single strand conformation polymorphism (SSCP) analyses were conducted to detect TCR BV genes of clonally expanded T cells derived from NC/Nga mice at an early phase of the AD-like dermatitis, at a late phase of the dermatitis, and with no AD-like dermatitis. RESULTS:(1) T cells with TCR BV 7, 10 and 17 reside in the skin of NC/Nga mice without the AD-like dermatitis. (2) T cells with these BV genes contain oligoclonal accumulations, however, expanded T cell clonotypes are also detected in the spleen and exist constantly during the course of the AD-like dermatitis. (3) Development of the AD-like dermatitis is associated with additional oligoclonal expansion/accumulation of T cells with TCR BV 2, 4 and 6 genes. (4) Progression of the AD-like dermatitis is associated with further oligoclonal expansion/accumulation of T cells with the TCR BV 14 gene. (5) Some of the expanded TCR clonotypes are common between the individual mice and between early and late phases. CONCLUSIONS:Taking these data together with the previous human AD studies, NC/Nga mice seem to be an appropriate model for human AD.

journal_name

J Dermatol Sci

authors

Matsuoka A,Kato T,Soma Y,Takahama H,Nakamura M,Matsuoka H,Mizoguchi M

doi

10.1016/j.jdermsci.2004.11.011

subject

Has Abstract

pub_date

2005-04-01 00:00:00

pages

17-24

issue

1

eissn

0923-1811

issn

1873-569X

pii

S0923-1811(04)00286-5

journal_volume

38

pub_type

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