Hyperthermia in Humans Enhances Interferon-γ Synthesis and Alters the Peripheral Lymphocyte Population

Autor: R.S. Elizondo, E.B. Walker, H. Martinez-Valdez, James F. Downing, Milton W. Taylor
Rok vydání: 1988
Předmět:
Zdroj: Journal of Interferon Research. 8:143-150
ISSN: 0197-8357
DOI: 10.1089/jir.1988.8.143
Popis: Induction of hyperthermia (39 degrees C) in human volunteers by immersion in warm water (41-45 degrees C) rapidly alters the cell populations in the peripheral blood. In addition to granulocytosis, there is an alteration of the normal ratios among T-lymphocyte subsets. Following in vitro mitogen stimulation, lymphocytes from hyperthermic individuals produce as much as 10-fold more interferon-gamma (IFN-gamma) than cells withdrawn at basal core temperatures from the same individuals. A temperature threshold of 39 degrees C for this response suggests potential relevance to fever. No change was noted in the activity of the macrophage population. The possible involvement of interleukin-2 (IL-2) in this enhanced production is discussed. No changes were noted in the circulating levels of IFN-gamma.
Databáze: OpenAIRE