Abstract
The neuroendocrine regulation of growth hormone (GH) has been extensively studied in many species, including humans. Although experiments in intact animals and after destruction or removal of key components of the hypothalamic-GH-IGF-I axis have given considerable insight into the individual components, the ablative procedures all give rise to other neuronal and/or hormonal deficiencies that complicate interpretation of the results. The recent availability of numerous models, both genetic and transgenic, has provided the opportunity to study selective perturbations of the axis and to examine the effects of excessive or diminished secretion and/or action of several individual hormonal components. This manuscript will review the experience in the authors’ laboratory using several transgenic and genetic strains of mice and rats with altered function of the individual axis components. These functional changes all produce profound effects on growth as well as on other components of the hypothalamic-pituitary axis.
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References
Asa SL, Kovacs K, Stefaneanu L, Horvath E, Billestrup N, Gonzalez-Manchon C, Vale W (1990) Pituitary mammosomatotroph adenomas develop in old mice transgenic for growth hormone-releasing hormone. Proc Soc Exp Biol Med 193:232–235.
Brar A, Brinster R, Frohman LA (1989) Immunohistochemical analysis of human growth hormone-releasing hormone gene expression in transgenic mice. Endocrinology 125:801–809.
Charlton HM, Clark RG, Robinson IC, Goff AEP, Cox BS, Bugnon C, Bloch BA (1988) Growth hormone-deficient dwarfism in the rat: a new mutation. J Endocrinol 119:51–58.
Chen WY, Wight DC, Wagner TE, Kopcnick JJ (1990) Expression of a mutated bovine growth hormone gene suppresses growth of transgenic mice. Proc Natl Acad Sci USA 87: 5061–5065.
Cheng K, Chan WW-S, Barreto A Jr, Convey EM, Smith RG (1989) The synergistic effects of His-D-Trp-Ala-Trp-D-Phe-Lys-NH2 on growth hormone (GH)-releasing factor-stimulated GH release and intracellular adenosine 3′5′-monophosphate accumulation in rat primary pituitary cell culture. Endocrinology 124:2791–2798.
Cheng TC, Beamer WG, Phillips JA, III, Bartke A, Mallonee RL, Dowling AC (1983) Etiology of growth hormone deficiency in little, Ames and Snell dwarf mice. Endocrinology 113:1669–1678.
Chomczynski P, Downs TR, Frohman LA (1988) Feedback regulation of growth hormone releasing hormone gene expression by growth hormone in rat hypothalamus. Mol Endocrinol 2:236–241.
Cunningham BC, Ultsch M, de Vos AM, Mulkerrin MG, Clauser KR, Wells JA (1991) Dimerization of the extracellular domain of the human growth hormone receptor by a single hormone molecule. Science 254:821–825.
de Vos AM, Ultsch M, Kossiakoff AA (1992) Human growth hormone and extracellular domain of its receptor: crystal structure of the complex. Science 255:306–312.
Downs TR, Frohman LA (1991) Evidence for a defect in growth hormone-releasing factor signal transduction in the dwarf (dw/dw) rat pituitary. Endocrinology 129:58–67.
Finkelstein JA, Ahmad I, Steggles AW, Chomczynski P, Downs TR, Frohman LA (1991) Levels of growth hormone-releasing hormone mRNA and somatostatin mRNA in the hypothalamus of the genetically obese Zucker rat. UCLA Winter Brain Conference (abstract).
Frohman LA, Downs TR, Kashio Y, Brinster R (1990) Tissue distribution and molecular heterogeneity of human growth hormone-releasing factor in the transgenic mouse. Endocrinology 127:2149–2156.
Frohman MA, Downs TR, Chomczynski P, Frohman LA (1989) Cloning and characterization of mouse growth hormone-releasing hormone (GRH) cDNA: increased GRH mRNA levels in the growth hormone deficient lit/lit mouse. Mol Endocrinol 3:1529–1536.
Hammer RE, Brinster RL, Rosenfeld MG, Evans RM, Mayo KE (1985) Expression of human growth hormone-releasing factor in transgenic mice results in increased somatic growth. Nature 315:413–416.
Jansson J-O, Downs TR, Beamer WG, Frohman LA (1986) Receptor-associated resistance to growth hormone-releasing factor in dwarf “little” mice. Science 232:511–512.
Jansson J-O, Downs TR, Beamer WG, Frohman LA (1986) The dwarf “little” (lit/lit) mouse is resistant to growth hormone (GH)-releasing peptide (GH-RP-6) as well as to GH-releasing hormone (GRH). Program of the 68th annual meeting of the Endocrine Society (abstract no 397).
Medrano JF, Pomp D, Sharrow L, Bradford GE, Downs TR, Frohman LA (1991) Growth hormone and insulin-like growth factor-I measurements in high growth (hg) mice. Genet Res Camb 58:67–74.
Medrano JF, Pomp D, Taylor BA, Bradford E (1992) The high growth gene (hg) in mice is located in chromosome 10 and linked to IGF-I. In: Whelan WJ (ed) Advances in gene technology: feeding the world in the 21st century. Proceedings of the 1992 Miami Bio/ Technology Winter symposium. Oxford University Press, New york (in press).
Sato M, Frohman LA (1992) Differential feedback effects of central and peripheral administration of growth hormone (GH) and IGF-I on hypothalamic GH-releasing hormone and somatostatin gene expression in the GH-deficient dwarf (dw) rat. Program of the 74th annual meeting of the Endocrine Society (abstract no 1580).
Shea BT, Hammer RE, Brinster RL (1987) Growth allometry of the organs in giant transgenic mice. Endocrinology 121:1924–1930.
Zeitler P, Downs TR, Mizobuchi M (1992) Impaired signal transduction in the spontaneous dwarf (dw) rat: molecular characterization of Gs-α. Proceedings of the 74th annual meeting of the Endocrine Society (abstract no 453).
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© 1993 Springer-Verlag Berlin Heidelberg
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Frohman, L.A., Downs, T.R., Sato, M. (1993). Use of Transgenic and Genetic Models to Study the Neuroendocrine Regulation of Growth Hormone Secretion. In: MĂĽller, E.E., Cocchi, D., Locatelli, V. (eds) Growth Hormone and Somatomedins during Lifespan. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-78217-6_12
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DOI: https://doi.org/10.1007/978-3-642-78217-6_12
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