Molecular and Cellular Requirements for the Assembly of Tertiary Lymphoid Structures.
Adv Exp Med Biol
; 1060: 55-72, 2018.
Article
em En
| MEDLINE
| ID: mdl-30155622
ABSTRACT
At sites of chronic inflammation, recruited immune cells form structures that resemble secondary lymphoid organs (SLOs). Those are characterized by segregated areas of prevalent T- or B-cell aggregation, differentiation of high endothelial venules (HEVs) and local activation of resident stromal cells. B-cell proliferation and affinity maturation towards locally displayed autoantigens have been demonstrated at those sites, known as tertiary lymphoid structures (TLSs). TLS formation has been associated with local disease persistence and progression as well as increased systemic manifestations. While bearing a similar histological structure to SLO, the signals that regulate TLS and SLO formation can diverge, and a series of pro-inflammatory cytokines has been ascribed as responsible for TLS formation at different anatomical sites. Here we review the structural elements as well as the signals responsible for TLS aggregation, aiming to provide an overview to this complex immunological phenomenon.
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Base de dados:
MEDLINE
Assunto principal:
Estruturas Linfoides Terciárias
Idioma:
En
Ano de publicação:
2018
Tipo de documento:
Article