Abstract
Release of anterior pituitary hormones is mediated by peptides produced by secretory neurons in the hypothalamus or preoptic area. The releasing or inhibiting factors are stored in nerve endings that lie in the median eminence and are secreted as the result of electrical activity. The hypothalamic peptides then travel through the portal system to the anterior pituitary where they interact with specific surface receptors to trigger release of pituitary trophic hormones. These, in turn, regulate physiologic processes elsewhere in the body either directly or indirectly through release of target gland hormones.
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References
W. H. Daughaday, K. Hall, M. S. Raben, W. D. Salmon, Jr., J. L. van der Brande, and J. J. van Wyk, Somatomedin: Proposed designation for sulphation factor, Nature 235:107 (1972).
E. Schoenle, J. Zapf, R. E. Humbel, and E. R. Froesch, Insulin-like growth factor I stimulates growth in hypophysectomized rats, Nature 296:252 (1982).
C. D. Scott, J. L. Martin, and R. C. Baxter, Rat hepatocyte insulin-like growth factor-I and binding protein: Effect of growth hormone in vitro and in vivo, Endocrinology 116:1102 (1985).
D. R. Clemmons, J. J. van Wyk, E. C. Ridgway, B. Kliman, R. N. Kjellberg, and L.E. Underwood, Evaluation of acromegaly by radioimmunoassay of somatomedin-C, New Engl. J. Med. 301:1138 (1979).
R. C. Baxter, The somatomedins: Insulin-like growth factors, Adv. Clin. Chem. 25:49 (1986).
G. Oppizzi, M. M. Petroncini, D. Dallabonzana, R. Cozzi, G. Verde, P. G. Chiodini, and A. Liuzzi, Relationship between somatomedin-C and growth hormone levels in acromegaly: Basal and dynamic evaluation, J. Clin. Endocrin. Metab. 63:1348 (1986).
J. C. Schwander, C. Hauri, J. Zapf, and E. R. Froesch, Synthesis and secretion of insulin-like growth factor and its binding protein by the perfused rat liver: Dependence on growth hormone status, Endocrinology 113:297 (1983).
L. J. Murphy, G. I. Bell, and H. G. Friesen, Tissue distribution of insulin-like growth factor I and II messenger ribonucleic acid in the adult rat, Endocrinology 120:1279 (1987).
L. J. Murphy, G. I. Bell, M. L. Duckworth, and H. G. Friesen, Identification, characterization, and regulation of a rat complementary deoxyribonucleic acid which encodes insulin-like growth factor-I, Endocrinology 121:684 (1987).
C. T. Roberts, Jr., S. R. Lasky, W. L. Lowe, Jr., W. T. Seaman, and D. LeRoith, Molecular cloning of rat insulin-like growth factor I complementary deoxyribonucleic acids: differential messenger ribonucleic acid processing and regulation by growth hormone in extrahepatic tissues, Mol. Endocrinol. 1:243 (1987).
A. J. D’Ercole, A. D. Stiles, and L. E. Underwood, Tissue concentrations of somatomedin C: Further evidence for multiple sites of synthesis and paracrine or autocrine mechanisms of action, Proc. Natl. Acad. Sci. USA 81:935 (1984).
C. C. Orlowski and S. D. Chernausek, Discordance of serum and tissue somatomedin levels in growth hormone-stimulated growth in the rat, Endocrinology 123:44 (1988).
M. A. Hynes, J. J. van Wyk, P. J. Brooks, A. J. D’ercole, M. Jansen, and P. K. Lund, Growth hormone dependence of somatomedin-C/insulin-like growth factor-I and insulin-like growth factor-II messenger ribonucleic acids, Mol. Endocrinol. 1:233 (1987).
J. Zapf, H. Walters, and E. R. Froesch, Radioimmunological determination of insulinlike growth factors I and II in normal subjects and in patients with growth disorders and extra-pancreatic tumor hypoglycemia, J. Clin. Invest. 68:1321 (1981)
S. O. Adams, S. P. Nissley, M. Kasuga, T. P. Foley, and M. M. Rechler, Receptors for insulin-like growth factors and growth effects of multiplication-stimulating activity (rat IGF-II) in rat embryo fibroblasts, Endocrinology 112:971 (1983).
H. D. Mosier, Jr., E. M. Spencer, L. C. Dearden, and R. A. Jansons, The effect of glucocorticoids on plasma insulin-like growth factor I concentration in the rat fetus, Pediatr. Res. 22:92 (1987).
K. Pavelic, D. Vrbanec, S. Marusic, S. Levanat, and T. Cabrijan, Autocrine tumor growth regulation by somatomedin C: An in vitro model, J. Endocrinol. 109:233(1986).
M. Adamo, H. Werner, W. Farnsworth, C. T. Roberts, Jr., M. Raizada, and D. LeRoith, Dexamethasone reduces steady state insulin-like growth factor I messenger ribonucleic acid levels in rat neuronal and glial cells in primary culture, Endocrinology 123:2565 (1988).
H. Katakami, T. R. Downs, and L. A. Frohman, Decreased hypothalamic growth hormone-releasing hormone content and pituitary responsiveness in hypothyroidism, J. Clin. Invest. 77:1704 (1986).
R. Valcavi, C. Dieguez, M. Preece, A. Taylor, I. Portioli, and M. F. Scanlon, Effect of thyroxine replacement therapy on plasma insulin-like growth factor 1 levels and growth hormone responses to growth hormone releasing factor in hypothyroid patients, Clin. Endocrinol. 27:85 (1987).
M. Binoux, A. Faivre-Bauman, C. Lassarre, A. Barret, and A. Tixier-Vidal, Triiodothyronine stimulates the production of insulin-like growth factor (IGF) by fetal hypothalamus cells cultured in serum-free medium, Dev. Brain Res. 21:319 (1985).
C.-J. Hsu and J. M. Hammond, Gonadotropins and estradiol stimulate immunoreactive insulin-like growth factor-I production by porcine granulosa cells in vitro, Endocrinology 120:198 (1987).
V. K. M. Han, J. M. Lauder, and A. J. D’Ercole, Characterization of somatomedin/insulin-like growth factor receptors and correlation with biologic action in cultured neonatal rat astroglial cells, J. Neurosci. 7:501 (1987).
N. J. Bohannon, E. S. Corp, B. J. Wilcox, D. P. Figlewicz, D. M. Dorsa, and D. G. Baskin, Localization of binding sites for insulin-like growth factor-I (IGF-I) in the rat brain by quantitative autoradiography, Brain Res. 444:205 (1988).
M. Smith, J. Clemens, G. A. Kerchner, and L. G. Mendelsohn, The insulin-like growth factor-II (IGF-II) receptor of rat brain: regional distribution visualized by autoradiography, Brain Res. 445:241 (1988).
H. Abe, M. E. Molitch, J. J. van Wyk, and L. E. Underwood, Human growth hormone and somatomedin C suppress the spontaneous release of growth hormone in unanesthetized rats, Endocrinology 113:1319 (1983).
G. S. Tannenbaum, H. J. Guyda, and B. I. Posner, Insulin-like growth factors: a role in growth hormone negative feedback and body weight regulation via brain, Science 220:77 (1983).
M. Berelowitz, S. L. Firestone, and L. A. Frohman, Effects of growth hormone excess and deficiency on hypothalamic somatostatin content and release and on tissue somatostatin distribution, Endocrinology 109:714 (1981).
S. Yamashita and S. Melmed, Insulin-like growth factor I action on rat anterior pituitary cells: Suppression of growth hormone secretion and messenger ribonucleic acid levels, Endocrinology 118:176 (1986).
G. P. Ceda, R. G. Davis, R. G. Rosenfeld, and A. R. Hoffman, The growth hormone (GH)-releasing hormone (GHRH)-GH-somatomedin axis: Evidence for rapid inhibition of GHRH-elicited GH release by insulin-like growth factors I and II, Endocrinology 120:1658 (1987).
T. Noguchi, L. M. Kurata, and T. Sugisaki, Presence of a somatomedin-C-immunoreactive substance in the central nervous system: Immunohistochemical mapping studies, Neuroendocrinology 46:277 (1987).
G. K. Haselbacher, M. E. Schwab, A. Pasi, and R. E. Humbel, Insulin-like growth factor II (IGF II) in human brain: Regional distribution of IGF II and of higher molecular mass forms, Proc. Natl. Acad. Sci. USA 82:2153 (1985).
P. Rotwein, S. K. Bergess, J. D. Milbrandt, and J. E. Krause, Differential expression of insulin-like growth factor genes in rat central nervous system, Proc. Natl. Acad. Sci. USA 85:265 (1988).
F. Stylianopoulou, J. Herbert, M. B. Soares, and A. Efstratiadis, Expression of the insulin-like growth factor II gene in the choroid plexus and the leptomeninges of the adult rat central nervous system, Proc. Natl. Acad. Sci. USA 85:141 (1988).
M. A. Hynes, P. J. Brooks, J. J. van Wyk, and P. K. Lund, Insulin-like growth factor II messenger ribonucleic acids are synthesized in the choroid plexus of the rat brain, Mol. Endocrinol. 2:47 (1988).
R. Ballotti, F. C. Nielson, N. Pringfe, A. Kowalski, W. D. Richardson, E. van Obberghen, and S. Gammeltoft, IGF-I in cultured rat astrocytes, expression of the gene and receptor tyrosine kinase, EMBO J. 6:3633 (1987).
L. S. Mathews, G. Norstedt, and R. D. Palmiter, Regulation of insulin-like growth factor I gene expression by growth hormone, Proc. Natl. Acad. Sci. USA 83:9343 (1986).
M. Blum, Regulation of neuroendocrine peptide gene expression, Meth. Enzymol. 168:3 (1988).
W. L. Lowe, Jr., C. T. Roberts, Jr., S. R. Lasky, and D. LeRoith, Differential expression of alternative 5′ untranslated regions in mRNAs encoding rat insulin-like growth factor I, Proc. Natl. Acad. Sci. USA 84:8946 (1987).
W. L. Lowe, Jr., S. R. Lasky, D. LeRoith, and C. T. Roberts, Jr., Distribution and regulation of rat insulin-like growth factor I messenger ribonucleic acids encoding alternative carboxyterminal E-peptides: Evidence for differential processing and regulation in liver, Mol. Endocrinol. 2: 528 (1988).
E. C. Hoyt, J. J. van Wyk, and P. K. Lund, Tissue and development specific regulation of a complex family of rat insulin-like growth factor I messenger ribonucleic acids, Mol. Endocrinol. 2:1077 (1988).
M. B. Soares, A. Turken, D. Ishii, L. Mills, L. V. Episkopou, S. Cotter, S. Zeitlin and A. Efstratiadis, Rat insulin-like growth factor II gene, J. Moi. Biol. 192, 737 (1986).
A. Gray, A. W. Tarn, T. J. Dull, J. Hayflick, J. Pintar, W. K. Cavenee, A. Koufos, and A. Ullrich, Tissue-specific and developmentally regulated transcription of the insulin-like growth factor 2 gene, DNA 6:283 (1987).
J.-C. Irminger, K. M. Rosen, R. E. Humbel, and L. Villa-Komaroff, Tissue-specific expression of insulin-like growth factor II mRNAs with distinct 5’ untranslated regions, Proc. Natl. Acad. Sci. USA 84:6330 (1987).
P. N. Schofield and V. E. Tate, Regulation of human IGF-II transcription in fetal and adult tissues, Development 101:793 (1987).
L. Chiariotti, A. L. Brown, R. Frunzio, D. R. Clemmons, M. M. Rechler, and C. B. Bruni, Structure of the rat insulin-like growth factor II transcriptional unit: Heterogeneous transcripts are generated from two promoters by use of multiple polyadenylation sites and differential ribonucleic acid splicing, Mol. Endocrinol. 2:1115 (1988).
F. A. McMorris, T. M. Smith, S. DeSalvo, and R. W. Furlanetto, Insulin-like growth factor I/somatomedin C: A potent inducer of oligodendrocyte development, Proc. Natl. Acad. Sci. USA 83:822 (1986).
R. H. M. van der Pal, J. W. Koper, L. M. G. van Golde, and M. Lopes-Cardozo, Effects of insulin and insulin-like growth factor (IGF-I) on oligodendrocyte-enriched glial cultures, J. Neurosci. Res. 19:483 (1988).
Z. G. Xue, N. M. Le Douarin , and J. Smith, Insulin and insulin-like growth factor-I can trigger the differentiation of catecholaminergic precursors in cultures of dorsal root ganglia, Cell Diff. Dev. 25:1 (1988).
D. Lenoir and P. Honegger, Insulin-like growth factor I (IGF I) stimulates DNA synthesis in fetal rat brain cell cultures, Dev. Brain Res. 7:205 (1983).
E. DiCicco-Bloom and I. B. Black, Insulin growth factors regulate the mitotic cycle in cultured rat sympathetic neuroblasts, Proc. Natl. Acad. Sci. USA 85:4066 (1988).
E. Recio-Pinto and D. Ishi, Effects of insulin, insulin-like growth factor-II and nerve growth factor on neurite outgrowth in cultured human neuroblastoma cells, Brain Res. 302:323 (1984).
I. K. Andersson, D. Edwall, G. Norstedt, B. Rozell, A. Slottner and H.- A. Hansson, Differing expression of insulin-like growth factor I in the developing and in the adult rat cerebellum, Acta Physiol Scand 132: 167 (1988).
D. O. Morgan, J. C. Edman, D. N. Standring, V. A. Fried, M. C. Smith, R. A. Roth, and W. J. Rutter, Insulin-like growth factor II receptor as a multifunctional binding protein, Nature 329:301 (1987).
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Wood, T.L., Berelowitz, M., McKelvy, J.F. (1989). Hormonal Feedback Regulation of Brain IGF-I and IGF-II Gene Expression. In: LeRoith, D., Raizada, M.K. (eds) Molecular and Cellular Biology of Insulin-like Growth Factors and Their Receptors. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-5685-1_18
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DOI: https://doi.org/10.1007/978-1-4684-5685-1_18
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