Autocrine or Paracrine Inflammatory Actions of Corticotropin-Releasing Hormone in Vivo

Corticotropin-releasing hormone (CRH) functions as a regulator of the hypothalamic-pituitary-adrenal axis and coordinator of the stress response. CRH receptors exist in peripheral sites of the immune system, and CRH promotes several immune functions in vitro. The effect of systemic immunoneutralizat...

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Veröffentlicht in:Science (American Association for the Advancement of Science) 1991-10, Vol.254 (5030), p.421-423
Hauptverfasser: Karalis, Katia, Sano, Hajime, Redwine, Jeffrey, Listwak, Sam, Wilder, Ronald L., Chrousos, George P.
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container_end_page 423
container_issue 5030
container_start_page 421
container_title Science (American Association for the Advancement of Science)
container_volume 254
creator Karalis, Katia
Sano, Hajime
Redwine, Jeffrey
Listwak, Sam
Wilder, Ronald L.
Chrousos, George P.
description Corticotropin-releasing hormone (CRH) functions as a regulator of the hypothalamic-pituitary-adrenal axis and coordinator of the stress response. CRH receptors exist in peripheral sites of the immune system, and CRH promotes several immune functions in vitro. The effect of systemic immunoneutralization of CRH was tested in an experimental model of chemically induced aseptic inflammation in rats. Intraperitoneal administration of rabbit antiserum to CRH caused suppression of both inflammatory exudate volume and cell concentration by approximately 50 to 60 percent. CRH was detected in the inflamed area but not in the systemic circulation. Immunoreactive CRH is therefore produced in peripheral inflammatory sites where, in contrast to its systemic indirect immunosuppressive effects, it acts as an autocrine or paracrine inflammatory cytokine.
doi_str_mv 10.1126/science.1925600
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CRH receptors exist in peripheral sites of the immune system, and CRH promotes several immune functions in vitro. The effect of systemic immunoneutralization of CRH was tested in an experimental model of chemically induced aseptic inflammation in rats. Intraperitoneal administration of rabbit antiserum to CRH caused suppression of both inflammatory exudate volume and cell concentration by approximately 50 to 60 percent. CRH was detected in the inflamed area but not in the systemic circulation. Immunoreactive CRH is therefore produced in peripheral inflammatory sites where, in contrast to its systemic indirect immunosuppressive effects, it acts as an autocrine or paracrine inflammatory cytokine.</abstract><cop>United States</cop><pub>American Society for the Advancement of Science</pub><pmid>1925600</pmid><doi>10.1126/science.1925600</doi><tpages>3</tpages></addata></record>
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source American Association for the Advancement of Science; MEDLINE; JSTOR
subjects Animals
Antiserum
Behavioral neuroscience
Carrageenan
Corticotropin releasing hormone
Corticotropin-Releasing Hormone - immunology
Corticotropin-Releasing Hormone - metabolism
Corticotropin-Releasing Hormone - physiology
Endocrine system
Endocrinology
Glucocorticoids
Hormones
Hypothalamic regulation
Immune response
Immune Sera
Immunity (Disease)
Immunohistochemistry
Inflammation
Inflammation - chemically induced
Inflammation - metabolism
Leukocytes
Male
Medical research
Rats
Rats, Inbred Strains
Receptors
Secretion
Tumor Necrosis Factor-alpha - immunology
Tumor Necrosis Factor-alpha - physiology
title Autocrine or Paracrine Inflammatory Actions of Corticotropin-Releasing Hormone in Vivo
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