Cited by 476Barrier Structure and Function StudiesNeuroinflammation and Neurodegeneration MechanismsTryptophan and brain disorders

Human interleukin (IL) 1 alpha, murine IL-1 alpha and murine IL-1 beta are transported from blood to brain in the mouse by a shared saturable mechanism.

Banks, W A, Ortiz, L, Plotkin, S R, Kastin, A J·1991·The Journal of Pharmacology and Experimental Therapeutics

Abstract

Interleukins (ILs) 1 alpha and 1 beta are important components of the neuroimmune axis. Recent work has shown that human 125I-IL-1 alpha can enter the brain from the blood by a saturable system, suggesting a mechanism that may directly link the immune and nervous systems. Here, it is shown that radioiodinated murine IL-1 beta and especially murine IL-1 alpha are even more rapidly transported into the brain of the mouse than is radioiodinated human IL-1 alpha after i.v. injection. All three cytokines exhibited self-inhibition, thus demonstrating saturable transport. Also, they all cross-inhibited the transport of each other. This shows that there are not three separate transport systems, but that they either share transport systems with overlapping affinities or share a single system. It was calculated that 0.06% to 0.08% of the dose of human 125I-IL-1 alpha injected i.v. was present in the brain during the first 60 min. By contrast, no saturable component could be detected in the brain to blood passage of the three ILs. No disruption of the blood-brain barrier to radioactively labeled albumin was found with i.v. doses of up to 50 micrograms/kg of human IL-1 alpha. Additional studies on the blood to brain transport of human 125I-IL-1 alpha showed no modification by dexamethasone, morphine, indomethacin or alpha-melanocyte stimulating hormone. Studies with antibodies directed toward the binding or nonbinding sites of IL or its receptor on the murine T lymphocyte suggest similar, but not identical, structural requirements for transport and for receptor binding.(ABSTRACT TRUNCATED AT 250 WORDS)

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Crossref · 10.1016/s0022-3565(25)20576-6

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  • Active transport of cytokines, notably IL1, IL6, and TNF, is likely an important contributor to changes in sleep during prolonged disease or infection.

    “the active transport of cytokines (Banks et al, 1991;Gutierrez et al, 1993;Plotkin et al, 1996), notably IL1, IL6, and TNF, is likely an important contributor to changes in sleep that occur during prolonged disease or infection.”

    From Sleep health: Reciprocal regulation of sleep and innate immunity (2017) · cites this paper as Banks et al, 1991

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Authors
Banks, W. A., Ortiz, L., Plotkin, S. R., & Kastin, A. J.
Affiliations
Veterans Health Administration (US)
Venue
The Journal of Pharmacology and Experimental Therapeutics
Publisher
Elsevier BV
Published
1991-12
Volume
259
Issue
3
Pages
988-996
ISSN
0022-3565 (ISSN-L)
OpenAlex
W1892932767
Cited by
474
References
0
Citations by year
2026: 6 · 2025: 4 · 2024: 8 · 2023: 12 · 2022: 6 · 2021: 10 · 2020: 13 · 2019: 5 · 2018: 12 · 2017: 8 · 2016: 11 · 2015: 17 · 2014: 15 · 2013: 10 · 2012: 11
FWCI
9.02
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Pharmacology and Experimental Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed
Topics
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
  • Life Sciences › Neuroscience › Neurology › Neuroinflammation and Neurodegeneration Mechanisms
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
interleukin-1 alpha, IL-1β, blood-brain barrier, cytokine transport, saturable transport, neuroimmune axis, blood-brain barrier integrity, interleukin-1 receptor, T cells
MeSH terms
Animals, Antibodies, Biological Transport, Blood-Brain Barrier, Brain, Humans, Injections, Intravenous, Injections, Intraventricular, Interleukin-1, Iodine Radioisotopes, Recombinant Proteins, Mice

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