Somnogenic relationships between tumor necrosis factor and interleukin- 1

Satoshi Takahashi, Levente Kapás, Jidong Fang, James M. Krueger

Research output: Contribution to journalArticle

62 Citations (Scopus)

Abstract

Both tumor necrosis factor (TNF) and interleukin (IL)-1 are somnogenic cytokines. They also induce each other's production and both induce nuclear factor kappa B activation, which in turn enhances IL-1 and TNF transcription. We hypothesized that TNF and IL-1 could influence each other's somnogenic actions. To test this hypothesis, we determined the effects of blocking both endogenous TNF and IL-1 on spontaneous sleep and on sleep rebound after sleep deprivation in rabbits. Furthermore, the effects of inhibition of TNF on IL- 1-induced sleep and the effects of blocking IL-1 on TNF-induced sleep were determined. A TNF receptor fragment (TNFRF), as a TNF inhibitor, and an IL-1 receptor fragment (IL-1RF), as an IL-1 inhibitor, were used. Intracerebroventricular injection of a combination of the TNFRF plus the IL- 1RF significantly reduced spontaneous non-rapid eye movement sleep by 87 min over a 22-h recording period. Pretreatment of rabbits with the combination of TNFRF and IL-1RF also significantly attenuated sleep rebound after sleep deprivation. Furthermore, the TNFRF significantly attenuated IL-1-induced sleep but not fever. Finally, the IL-1RF blocked TNF-induced sleep responses but not fever. Results indicate that TNF and IL-1 cooperate to regulate physiological sleep.

Original languageEnglish (US)
JournalAmerican Journal of Physiology - Regulatory Integrative and Comparative Physiology
Volume276
Issue number4 45-4
StatePublished - Apr 1 1999

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Interleukin-1
Sleep
Tumor Necrosis Factor-alpha
Tumor Necrosis Factor Receptors
Interleukins
Sleep Deprivation
Fever
Rabbits
Interleukin-1 Receptors
NF-kappa B
Eye Movements
Cytokines
Injections

All Science Journal Classification (ASJC) codes

  • Physiology
  • Physiology (medical)

Cite this

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Somnogenic relationships between tumor necrosis factor and interleukin- 1. / Takahashi, Satoshi; Kapás, Levente; Fang, Jidong; Krueger, James M.

In: American Journal of Physiology - Regulatory Integrative and Comparative Physiology, Vol. 276, No. 4 45-4, 01.04.1999.

Research output: Contribution to journalArticle

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