[Demonstration of gonadotropic cells in the adenohypophysis (pars distalis and pars tuberalis) of the monkey Macacus irus. Immunofluorescence study using human anti-beta-FSH and ovine anti-beta-LH antibodies].

Indirect immunofluorescence technique with anti-beta FSH and anti-beta oLH antisera has allowed us to detect "gonadotropic cells" in the pars distalis and in the pars tuberalis of the adenohypophysis of the monkey Macacus irus. In the pars distalis, 85-90 % of the "gonadotropic cells" react simultaneously with these two antisera ; 10-15 % of these cells react only either with anti-beta hFSH or anti-beta oLH antisera. The gonadotropic cells are dispersed in the whole pars distalis, amid the other cellular types ; indeed, in the female, there is a "gonadotropic zone" in the median zone of the lateral lobes of the gland. In the pars tuberalis, we have observed "gonadotropic cells" which react only with anti-beta oLH antiserum. These results are compared with observations of some authors.