Abstract
Neither the pathogenesis nor the treatment of pituitary tumors in man is yet well understood. The mechanisms controlling both hormone release and gene transcription in the rat pituitary are becoming increasingly better understood; however, knowledge concerning hormonal control of the human pituitary gland is still largely limited to studies of hormone release from cultured tissue (1,2), and there are very few studies of the regulation of human pituitary gene transcription. In this paper, we report preliminary data from studies of two unusual and aggressive human tumors grown in short-term monolayer cell culture. We have applied the techniques of DNA/RNA hybridization analysis to study the control of cytoplasmic messenger RNA levels in order to give some index of pretranslational stages of hormone synthesis.
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References
Adams EF, Bhuttacharji SC, Halliwell CLJ, Loizou M, Birch G, Mashiter K (1984) Effect of pancreatic growth hormone releasing factors on GH secretion by human somatotrophic pituitary tumours in cell culture. Clin Endocrinol 21: 709–718
Lamberts SWJ, Verleun T, Hofland L, Del Pozo E (1987) A comparison between the effects of SMS 201–995, bromocriptine and a combination of both drugs on hormone release by the cultured pituitary tumour cells of acromegalic patients. Clin Endocrinol 27: 11–23
Davis JRE, Sheppard MC (1986) Modulation of thyrotrophin release from an intracellular pool by pre-exposure to thyrotrophin-releasing hormone and dibutyryl cyclic AMP. J Endocrinol 108: 211–217
White BA, Bancroft FC (1982) Cytoplasmic dot hybridization. Simple analysis of relative mRNA levels in multiple small cell or tissue samples. J Biol Chem 257: 8569–8572
Truong AT, Duez C, Belayew A, Renard A, Pictet R, Bell GI, Martial JA (1984) Isolation and characterization of the human prolactin gene. EMBO J 3: 429–437
Martial JA, Halliwell RA, Baxter JD, Goodman HM (1979) Human growth hormone: complementary DNA cloning and expression in bacteria. Science 205: 602–607
Yamashita S, Weiss M, Melmed S (1986) Insulin-like growth factor I regulates growth hormone secretion and messenger ribonucleic acid levels in human pituitary tumor cells. J Clin Endocrinol Metab 63: 730–735
White BA, Bancroft FC (1983) Epidermal growth factor and thyrotropin-releasing hormone interact synergistically with calcium to regulate prolactin mRNA levels. J Biol Chem 258: 4618–4622
Maurer RA (1980) Dopaminergic inhibition of prolactin synthesis and prolactin messenger RNA accumulation in cultured pituitary cells. J Biol Chem 244: 8092–8097
Wood DF, Docherty K, Ramsden DB, Sheppard MC (1987) A comparison of the effects of bromocriptine and somatostatin on growth hormone gene expression in the rat anterior pituitary in vitro. Mol Cell Endocrinol 52: 257–261
Barinaga M, Bilezikjian LM, Yale WW, Rosenfeld MG, Evans RM (1985) Independent effects of growth hormone releasing factor on growth hormone release and gene transcription. Nature 314: 279–281
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© 1989 Springer-Verlag New York Inc.
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Davis, J.R.E., Wilson, E.M., Sheppard, M.C. (1989). Human Pituitary Tumors in Cell Culture: Modulation of Prolactin and Growth Hormone Messenger RNA Levels in Vitro. In: Wass, J.A.H., Scanlon, M.F. (eds) Neuroendocrine Perspectives. Neuroendocrine Perspectives, vol 6. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3478-4_27
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DOI: https://doi.org/10.1007/978-1-4612-3478-4_27
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4612-8117-7
Online ISBN: 978-1-4612-3478-4
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