T cell receptor rearrangement excision circles (TREC) study as an approach to "in vivo" thymus gland function investigation
نویسندگان
چکیده
منابع مشابه
T cell receptor excision circles (TREC) and recent thymic migrant cells in specific immunotherapy and respiratory allergy to Dermatophagoides pteronyssinus.
INTRODUCTION T cell receptor excision circles (TREC) on CD31+ T cells are related to recent thymic emigrant cells (RTEs). The involvement of the functional thymic tissue occurs early in the IgE-mediated allergic reaction, and in response to specific immunotherapy (SIT). AIM Evaluation of specific immunotherapy effects on TREC number in peripheral T cells in patients allergic to Dermatophagoid...
متن کاملThymus activity measured by T-cell receptor excision circles in patients with different severities of respiratory syncytial virus infection
BACKGROUND Respiratory syncytial virus (RSV) infection is an important cause of hospitalization in previously healthy infants. Immunological mechanisms predisposing infants to severe disease are poorly understood. Early biomarkers for disease severity may assist clinical decisions. We investigated T-cell receptor excision circles (TREC), episomal DNA made during thymic T-cell receptor rearrange...
متن کاملDecreased T-cell receptor excision circles in cutaneous T-cell lymphoma.
PURPOSE The T cell repertoire in patients with advanced cutaneous T cell lymphoma (CTCL) is significantly contracted despite the presence of relatively normal absolute numbers of T cells. We propose that many normal T cells were being lost in patients with CTCL, with the remaining normal T cells expanding clonally to fill the T cell compartment. T-cell receptor excision circles (TREC) form as a...
متن کاملT-cell receptor excision circles (TREC) and maintenance of long-term non-progression status in HIV-1 infection.
T-cell receptor excision circles (TREC) in peripheral blood mononuclear cells (PBMC) were evaluated in the Genetic Resistance to Human Immunodeficiency Virus cohort of HIV-1-seropositive non-progressors (NP). After a short follow-up, NP were sub-grouped as stable (NP-S), or with signs of disease progression (NP-P). Initial TREC were higher in NP-S compared to NP-P ( P = 0.002), even after adjus...
متن کاملReevaluation of T cell receptor excision circles as a measure of human recent thymic emigrants.
The human thymus exports newly generated T cells to the periphery. As no markers have been identified for these recent thymic emigrants (RTE), it is presently impossible to measure human thymic output. T cell receptor excision circles (TREC) have been recently used to assess thymic output during both health and disease. Using a mathematical model, we quantify age-dependent changes both in the n...
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ژورنال
عنوان ژورنال: Arthritis Research & Therapy
سال: 2012
ISSN: 1478-6354
DOI: 10.1186/ar3638