Suppressor cells generated in mice later after thermal injury

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Abstract

A second suppressive state (S-SupS) in interferon (IFN) was demonstrated when mice with third-degree burns of approximately 30% of the body surface area (TI-mice) were stimulated in vivo by Staphylococcal enterotoxin A, a gamma IFN inducer. The first suppressive state in IFN production, appearing 3 to 7 days after thermal injury, was mediated by the generation of splenic suppressor macrophages. The S-SupS was demonstrated approximately 3 weeks post thermal injury. It persisted for almost 3 weeks and gradually disappeared by 7 weeks. Spleen cells from mice during the S-SupS produced less IFN in vitro than normal mouse splenic mononuclear cells (MNC) when stimulated with concanavalin A (Con A). Splenic MNC of mice during the S-SupS inhibited IFN production when they were co-cultured with normal mouse splenic MNC in the presence of Con A. Since this suppressor cell activity could not be removed from TI-mice splenic MNC by carbonyl iron treatment, or by a technique of adherence to a plastic surface, it is suggested that two different cell populations which are capable of suppressing the IFN response of TI-mice exist at different time periods following burn injury.

Original languageEnglish (US)
Pages (from-to)379-383
Number of pages5
JournalJournal of Trauma
Volume27
Issue number4
StatePublished - 1987
Externally publishedYes

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Hot Temperature
Interferons
Wounds and Injuries
Interferon Inducers
Body Surface Area
Concanavalin A
Burns
Plastics
Interferon-gamma
Spleen
Iron
Macrophages
Population

ASJC Scopus subject areas

  • Surgery

Cite this

Suppressor cells generated in mice later after thermal injury. / Suzuki, F.; Pollard, Richard B.

In: Journal of Trauma, Vol. 27, No. 4, 1987, p. 379-383.

Research output: Contribution to journalArticle

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