Rearrangements of T-cell antigen receptor γ and δ chain genes are detected in the long-term cultured bone marrow cells of athymic nude mice but not in those of euthymic mice

Yasunobu Yoshikai, Y. Takeda, Shoichi Ohga, K. Kishihara, G. Matsuzaki, K. Nomoto

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Abstract

We have previously shown that extrathymic rearrangements of T-cell receptor (TcR) γ and δ chain genes occur in the peripheral lymphoid tissues of athymic nude mice. To further determine where the TcR gene rearrangements occur in nude mice, we investigated the rearrangement and expression of the TcR genes in the long-term cultured bone marrow (LTBM) cells which were homogenous in developments without mature T cells as assessed by FACS analysis. The LTBM derived from euthymic mice contained TcR γ and δ chain genes in germline configuration, while gene rearrangements of both locus were detected in the LTBM cells from nude mice. These results suggested that γ and δ gene rearrangements do occur in the bone marrow cells of nude mice and that the T-cell precursors in bone marrow may be increased in frequency in such animals.

Original languageEnglish
Pages (from-to)512-516
Number of pages5
JournalImmunology
Volume66
Issue number4
Publication statusPublished - Jan 1 1989

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology

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