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Tissue-Resident Memory T Cells in Chronic Inflammation-Local Cells with Systemic Effects?
Samat, Anoushka Ashok Kumar; van der Geest, Jolijn; Vastert, Sebastiaan J; van Loosdregt, Jorg; van Wijk, Femke.
Afiliación
  • Samat AAK; Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands.
  • van der Geest J; Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands.
  • Vastert SJ; Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands.
  • van Loosdregt J; Paediatric Rheumatology and Immunology, Wilhelmina Children's Hospital, Utrecht University, 3584 EA Utrecht, The Netherlands.
  • van Wijk F; Center for Translational Immunology, University Medical Center Utrecht, Utrecht University, 3584 CX Utrecht, The Netherlands.
Cells ; 10(2)2021 02 16.
Article en En | MEDLINE | ID: mdl-33669367
Chronic inflammatory diseases such as rheumatoid arthritis (RA), Juvenile Idiopathic Arthritis (JIA), psoriasis, and inflammatory bowel disease (IBD) are characterized by systemic as well as local tissue inflammation, often with a relapsing-remitting course. Tissue-resident memory T cells (TRM) enter non-lymphoid tissue (NLT) as part of the anamnestic immune response, especially in barrier tissues, and have been proposed to fuel chronic inflammation. TRM display a distinct gene expression profile, including upregulation of CD69 and downregulation of CD62L, CCR7, and S1PR1. However, not all TRM are consistent with this profile, and it is now more evident that the TRM compartment comprises a heterogeneous population, with differences in their function and activation state. Interestingly, the paradigm of TRM remaining resident in NLT has also been challenged. T cells with TRM characteristics were identified in both lymph and circulation in murine and human studies, displaying similarities with circulating memory T cells. This suggests that re-activated TRM are capable of retrograde migration from NLT via differential gene expression, mediating tissue egress and circulation. Circulating 'ex-TRM' retain a propensity for return to NLT, especially to their tissue of origin. Additionally, memory T cells with TRM characteristics have been identified in blood from patients with chronic inflammatory disease, leading to the hypothesis that TRM egress from inflamed tissue as well. The presence of TRM in both tissue and circulation has important implications for the development of novel therapies targeting chronic inflammation, and circulating 'ex-TRM' may provide a vital diagnostic tool in the form of biomarkers. This review elaborates on the recent developments in the field of TRM in the context of chronic inflammatory diseases.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades Inflamatorias del Intestino / Linfocitos T CD8-positivos / Memoria Inmunológica / Inflamación Tipo de estudio: Prognostic_studies Límite: Animals / Humans Idioma: En Revista: Cells Año: 2021 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Suiza
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Enfermedades Inflamatorias del Intestino / Linfocitos T CD8-positivos / Memoria Inmunológica / Inflamación Tipo de estudio: Prognostic_studies Límite: Animals / Humans Idioma: En Revista: Cells Año: 2021 Tipo del documento: Article País de afiliación: Países Bajos Pais de publicación: Suiza