In:
Cytometry Part A, Wiley, Vol. 75A, No. 9 ( 2009-09), p. 743-751
Abstract:
Analysis of the T‐cell receptor (TCR) repertoire by flow cytometry proved to be relevant for investigating T‐cell diversity and detecting reactive cells in blood samples. We used this approach to characterize non‐malignant T‐lymphocytes in lymph nodes and give insights into their origin. The TCR repertoire of CD4+ and CD8+ T‐cells from 81 lymph nodes was analyzed with a four‐color flow cytometer using a wide panel of 25 anti‐Vβ monoclonal antibodies. Flow cytometry proved to be a useful and informative technique. We demonstrated a diversified TCR‐Vβ repertoire, and only low level expansions, in 53% of the samples. They involved nearly all Vβ families, were more frequent in the CD8+ subset of older patients, but were not related to pathology. No evidence could be demonstrated in favor of stimulation by common antigens. Interestingly, the TCR‐Vβ repertoire proved to be very similar in lymph nodes and blood samples. Our results argue that in the cases studied, lymph node enlargement is mainly due to an increased homing of circulating T‐cells. They also provide reference values for expression of 25 TCR‐Vβ in lymph nodes, which could serve as a basis for further applications in diagnosis of T‐cell lymphoproliferative disorders. © 2009 International Society for Advancement of Cytometry
Type of Medium:
Online Resource
ISSN:
1552-4922
,
1552-4930
DOI:
10.1002/cyto.a.v75a:9
DOI:
10.1002/cyto.a.20767
Language:
English
Publisher:
Wiley
Publication Date:
2009
detail.hit.zdb_id:
2180639-1
SSG:
12
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