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Abstract:

Specific receptors for the different gp130 cytokines, as well as the cytokines themselves, are expressed in anterior pituitary cells, providing the basis for the regulation of hormone secretion and cell growth (Figure 2). During an inflammatory response, both IL-6 and LIF increase (15, 17). LPS stimulates intrapituitary IL-6 production in FS cells via specific Toll receptors using the p38 MAPK-NF-κB pathway (20). Anti-IL-6 antibodies block the ACTH response of rat anterior pituitary cell cultures to LPS, showing the involvement of locally produced IL-6 (U. Renner et al., unpublished observations). Thus, during acute or chronic inflammation or infection, systemic, hypothalamic, or hypophyseal gp 130 cytokines may act on anterior pituitary cells, integrating the neuroendocrine response. The action of gp130 cytokines through the STAT3 transcription factor represents a powerful mechanism for regulation of pituitary corticotroph function. In response to different stressful stimuli, CRH stimulates the corticotrophs through cAMP/protein kinase A-mediated and calcium-mediated pathways and AP-1, CREB, and Nurr transcription factors. Cytokines may act on corticotrophs through different mechanisms; whereas IL-1 acts through Nur77, gp130 employs STAT3 for transcriptional activation. Cooperation between STAT3 and other transcription factors, such as NF-κB, AP-1, or the glucocorticoid receptor, has been described in other tissues (6), but it remains to be established whether this occurs in the pituitary. Future research clarifying the molecular mechanisms of gp130 action on pituitary cells will provide new clues regarding their involvement in neuro-endocrine responses to immune stimulation and will be of great importance for understanding pituitary pathophysiology.

Registro:

Documento: Artículo
Título:gp130 cytokine signaling in the pituitary gland: A paradigm for cytokine-neuro-endocrine pathways
Autor:Arzt, E.
Filiación:Laboratorio de Fisiología y Biología Molecular, Facultad de Ciencias Exacias y Naturales, Universidad de Buenos Aires and Argentine National Research Council (CONICET), Buenos Aires, Argentina
Max-Planck-Institute of Psychiatry, Munich, Germany
Laboratorio de Fisiología y Biología Molecular, Departamento de Biología, FCEN, 1428 Buenos Aires, Argentina
Palabras clave:calcium; corticotropin; cyclic AMP; cyclic AMP dependent protein kinase; cyclic AMP responsive element binding protein; cytokine; cytokine receptor; glucocorticoid receptor; glycoprotein gp 130; immunoglobulin enhancer binding protein; interleukin 1; interleukin 6; interleukin 6 antibody; leukemia inhibitory factor; mitogen activated protein kinase; STAT3 protein; synaptophysin; toll like receptor; transcription factor; transcription factor AP 1; adenohypophysis; cell growth; corticotropin release; cytokine production; hormone release; hypophysis; hypothalamus; inflammation; neuroendocrine system; neuroimmunology; priority journal; review; signal transduction; stress; transcription regulation; Adrenocorticotropic Hormone; Animals; Antigens, CD; Cytokine Receptor gp130; Humans; Membrane Glycoproteins; Pituitary Gland; Pro-Opiomelanocortin; Receptors, Cytokine; Signal Transduction; Stress
Año:2001
Volumen:108
Número:12
Página de inicio:1729
Página de fin:1733
DOI: http://dx.doi.org/10.1172/JCI200114660
Handle:http://hdl.handle.net/20.500.12110/paper_00219738_v108_n12_p1729_Arzt
Título revista:Journal of Clinical Investigation
Título revista abreviado:J. Clin. Invest.
ISSN:00219738
CODEN:JCINA
CAS:Adrenocorticotropic Hormone, 9002-60-2; Antigens, CD; Cytokine Receptor gp130, 133483-10-0; IL6ST protein, human; Membrane Glycoproteins; Pro-Opiomelanocortin, 66796-54-1; Receptors, Cytokine
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Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00219738_v108_n12_p1729_Arzt

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Citas:

---------- APA ----------
(2001) . gp130 cytokine signaling in the pituitary gland: A paradigm for cytokine-neuro-endocrine pathways. Journal of Clinical Investigation, 108(12), 1729-1733.
http://dx.doi.org/10.1172/JCI200114660
---------- CHICAGO ----------
Arzt, E. "gp130 cytokine signaling in the pituitary gland: A paradigm for cytokine-neuro-endocrine pathways" . Journal of Clinical Investigation 108, no. 12 (2001) : 1729-1733.
http://dx.doi.org/10.1172/JCI200114660
---------- MLA ----------
Arzt, E. "gp130 cytokine signaling in the pituitary gland: A paradigm for cytokine-neuro-endocrine pathways" . Journal of Clinical Investigation, vol. 108, no. 12, 2001, pp. 1729-1733.
http://dx.doi.org/10.1172/JCI200114660
---------- VANCOUVER ----------
Arzt, E. gp130 cytokine signaling in the pituitary gland: A paradigm for cytokine-neuro-endocrine pathways. J. Clin. Invest. 2001;108(12):1729-1733.
http://dx.doi.org/10.1172/JCI200114660