Immature and advanced patterns of T cell receptor gene rearrangement among lymphocytes in splenic culture.
Bulk populations and 39 hybridomas from splenic Con A cultures were analyzed for rearrangements among TCR genes: alpha, beta, gamma, and delta. Patterns were categorized to reveal general rules governing gene rearrangement within the activated adult peripheral population. Many patterns of gene rearrangement were consistent with previous studies of T cell lines. Additional points of interest were the following: 1) A large proportion of Con A-stimulated splenic cells bore no TCR gene rearrangements. 2) One splenic hybridoma exhibited an unusual gene pattern, with rearrangements, at alpha and beta, but not J gamma 1 or J gamma 2 loci. 3) Multiple gamma rearrangements were noted other than V1.2-J2 and V2-J1. 4) One hybridoma exhibited TCR gene rearrangements typical of day 14 to 15 fetal thymocytes, as well as rearrangements at immunoglobulin gene loci. 5) Among hybridomas with J alpha rearrangements, homologous chromosomes exhibited rearrangements at similar positions along the J alpha locus.[1]References
- Immature and advanced patterns of T cell receptor gene rearrangement among lymphocytes in splenic culture. Hurwitz, J.L., Samaridis, J., Pelkonen, J. J. Immunol. (1989) [Pubmed]
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