Manipulation of anti-LDH-B response by T suppressor factors

Z. Ikezawa, Z. A. Nagy, J. Klein

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


Hybridomas produced by fusion between the BW5147 thymoma and an LDH-B-specific B10.A(2R) suppressor T cell line secrete two T suppressor factors (TsF). One factor (TsF-A) shares Mhc determinants with the A(α)A(β) molecule and suppresses proliferating Th cells; the other (TsF-E) shares determinants with the E(α)E(β) molecule and it inhibits the maturation of the T suppressor (Ts) cells. Here we demonstrate that the two factors can be used to alter the immune response status of cultured T lymphocytes of an animal. When added to a culture of LDH-B-primed cells or injected into mice, the TsF-A turns responders into nonresponders, presumably by blocking the proliferation of the Th cells. The TsF-E converts nonresponder cultures or mice into responders, presumably by preventing the differentiation of Ts cells. As there are good prospects for obtaining TsF in large quantities and in a highly purified form, this manipulation of the immune response by the deployment of specific factors promises to become an efficient new method of immunotherapy.

Original languageEnglish (US)
Pages (from-to)1605-1607
Number of pages3
JournalJournal of Immunology
Issue number4
StatePublished - Jan 1 1984

All Science Journal Classification (ASJC) codes

  • Immunology and Allergy
  • Immunology


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