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Trends Immunol. 2005 May;26(5):242-7.

Effector lymphoid tissue and its crucial role in protective immunity.

Author information

1
Malaghan Institute of Medical Research, PO Box 7060, Wellington, New Zealand.

Abstract

It is often argued that T cell-mediated immunity to secondary infection is dependent on the 'accelerated' responses of memory T cells in lymph nodes. However, new evidence points to a crucial role for effector memory T cells, which are resident in peripheral tissues, in immune protection. These T cells, which reside in peripheral tissues, are not necessarily bound by an anatomical structure and can be present at many sites. Collectively, they represent a third functional tissue of the immune system, uniquely specialized to mediate protective immunity. We propose that the paradigm 'effector lymphoid tissue' needs to be articulated and developed as a focus of new research to describe and understand the unique role this tissue has in protective immunity.

PMID:
15866236
DOI:
10.1016/j.it.2005.03.005
[Indexed for MEDLINE]

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