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- W1833419552 abstract "Sézary syndrome (SS) is a cutaneous T-cell lymphoma characterized by erythroderma, lymphadenopathy and malignant clonal T cells in the skin, lymph nodes and peripheral blood. A role for superantigens in the pathogenesis of SS has been postulated before.To investigate a putative involvement of chronic (super-)antigenic stimulation in driving T-cell expansion in SS.Antigenic specificity of the T-cell receptor (TCR) was assayed by molecular analysis of the TCRA (n=11) and TCRB (n=28) genes, followed by detailed in silico analysis.Sequence analysis of clonally rearranged TCRB genes showed over-representation of Vβ8, Vβ13, Vβ17, Vβ21 and Vβ22, and under-representation of Vβ2 and Jβ1.1 when compared with healthy controls. No similarity was detected in amino acid motifs of the complementarity determining region 3 (CDR3). Analysis of TCRA rearrangements showed that there was no common Vα or Jα gene usage, and that TCRA CDR3 amino acid motifs were not highly similar.The lack of clear stereotypic TCRA and TCRB CDR3 amino acid motifs would argue against involvement of a single common antigen in the pathogenesis of SS. Nevertheless, the skewing of Vβ and Jβ gene usage does seem to point to a restricted TCR repertoire, possibly as a result of superantigenic selection prior to neoplastic transformation." @default.
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- W1833419552 date "2011-06-02" @default.
- W1833419552 modified "2023-09-27" @default.
- W1833419552 title "A restricted clonal T-cell receptor αβ repertoire in Sézary syndrome is indicative of superantigenic stimulation" @default.
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- W1833419552 doi "https://doi.org/10.1111/j.1365-2133.2011.10308.x" @default.
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