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Journal of Endocrinology (1978) 79, 245-246    DOI: 10.1677/joe.0.0790245
© 1978 Society for Endocrinology

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DIRECT ANTIPROLIFERATIVE EFFECT OF DOPAMINE AGONISTS ON THE ANTERIOR PITUITARY GLAND IN ORGAN CULTURE

M. PAWLIKOWSKI, J. KUNERT-RADEK and H. STEPIEN

Department of Experimental Endocrinology, Institute of Endocrinology, Medical Academy of Lódz, Dr Sterling sir. 3, 91–425 Lódz, Poland

(Received 22 May 1978)

Lloyd, Meares & Jacobi (1975) observed inhibition of mitotic activity in the anterior pituitary gland by the dopamine receptor agonist, bromocriptine, in oestrogen-treated male rats. This observation has been confirmed in our laboratory (Stepien, Wolaniuk & Pawlikowski, 1978). Suppression of mitotic activity in the pars intermedia of the rat pituitary gland by bromocriptine has also been observed (Rychter & Stepien, 1977). Furthermore, it has been found that the dopamine receptor blocker, pimozide, enhances mitotic activity in the rat anterior pituitary gland (Stepien et al. 1978). By the use of various ergot alkaloids, MacLeod & Lehmeyer (1973) succeeded in inhibiting the growth of transplantable rat pituitary tumours. There have also been observations suggesting an antiproliferative effect of bromocriptine on human pituitary tumours (Wass, Thorner, Morris, Rees, Mason, Jones &




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Mol. Endocrinol., October 1, 2002; 16(10): 2393 - 2404.
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