Central tolerance: Clonal deletion or clonal arrest?

Wojciech Swat, Harald Von Boehmer, Pawel Kisielow

Research output: Contribution to journalArticlepeer-review

11 Scopus citations


Studies in various experimental animals have shown that developing T cells with specificity for self antigens can be prevented from maturation at an early stage of development. While several in vitro and in vivo experiments have shown that the mechanism of silencing autospecific T cells is the deletion of immature CD4+8+ thymocytes other experiments were interpreted to indicate that tolerance could also result from developmental arrest of more immature CD48+ thymocytes not involving cell death. Here we show that immature CD48+ cells when confronted with T cell receptor ligands in vitro neither survive nor differentiate into cells which cannot be deleted, indicating that clonal elimination rather than developmental arrest is the mechanism of central tolerance of all immature T cells.

Original languageEnglish
Pages (from-to)485-487
Number of pages3
JournalEuropean Journal of Immunology
Issue number2
StatePublished - Feb 1994
Externally publishedYes


  • Clonal arrest
  • Clonal deletion
  • Tolerance


Dive into the research topics of 'Central tolerance: Clonal deletion or clonal arrest?'. Together they form a unique fingerprint.

Cite this