DISTURBED IMMUNO-ENDOCRINE COMMUNICATION VIA THE HYPOTHALAMO-PITUITARY-ADRENAL AXIS IN AUTOIMMUNE-DISEASE

被引:65
作者
HU, YH
DIETRICH, H
HEROLD, M
HEINRICH, PC
WICK, G
机构
[1] UNIV INNSBRUCK, SCH MED, INST GEN & EXPTL PATHOL, FRITZ PREGL STR 2, A-6020 INNSBRUCK, AUSTRIA
[2] UNIV INNSBRUCK, SCH MED, DEPT INTERNAL MED, A-6020 INNSBRUCK, AUSTRIA
[3] RHEIN WESTFAL TH AACHEN, INST BIOCHEM, W-5100 AACHEN, GERMANY
[4] AUSTRIAN ACAD SCI, INST BIOMED AGING RES, INNSBRUCK, AUSTRIA
关键词
AUTOIMMUNE DISEASE; IMMUNO-ENDOCRINE COMMUNICATION; GLUCOCORTICOID-INCREASING FACTOR; CYTOKINE; CORTICOSTERONE;
D O I
10.1159/000236531
中图分类号
R392 [医学免疫学];
学科分类号
100102 ;
摘要
Previous studies in our laboratory demonstrated an altered immuno-endocrine feedback communication via the hypothalamo-pituitary-adrenal (HPA) axis, which may be an important modulatory factor in the development of spontaneous autoimmune thyroiditis in Obese strain (OS) chickens. These birds show a significantly lower, or even absent, increase in serum glucocorticoid levels in response to an intravenous injection of antigen or conditioned medium (CM) from mitogen-stimulated spleen cells known to contain glucocorticoid-increasing factors (GIFs), notably interleukin-1 (IL-1). The present study was aimed at investigating this feedback regulation in animal models with spontaneous systemic autoimmune diseases, such as the UCD-200 chicken, which serves as a model for human scleroderma, and various murine lupus models. In contrast to OS chickens, UCD-200 chickens displayed a nearly normal plasma corticosterone surge in response to CM, and IL-1 was again identified as the primary GIF in CM. Recombinant IL-1 also induced a drastic increase in plasma corticosterone levels in various strains of normal mice. A similar increase was observed in the bacterial lipopolysaccharide-resistant C3H/HeJ strain, thus excluding the possibility of bacterial endotoxin contamination. However, in young lupus-prone (NZB/W)F1 and MRL/MP-lpr mice, a significantly lower increase in plasma corticosterone levels was observed after injection of recombinant IL-1, suggesting a deficient immuno-endocrine communication via the HPA loop in this instance as well. Detailed studies to identify further cytokines with GIF activity in the avian and murine systems showed that both IL,6 and tumor necrosis factor-a could induce increased plasma corticosterone levels in mice, but not in chickens. IL-3, IL-8, transforming growth factor-beta, interferon-gamma and granulocyte-macrophage colony-stimulating factor were devoid of GIF activity in both chickens and mice.
引用
收藏
页码:232 / 241
页数:10
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