Androgens control androgen-binding sites in rat epididymis

Previous results suggested that the number of androgen-binding sites in rat epididymis was controlled by androgens. Using an exchange technique for receptor determination, we now report that cytoplasmic receptor number decreased to about half the control value after 4 days of castration and reached...

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Autor principal: Tezon, J.G
Otros Autores: Blaquier, J.A
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1983
Acceso en línea:Registro en Scopus
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Registro en la Biblioteca Digital
Aporte de:Registro referencial: Solicitar el recurso aquí
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024 7 |2 scopus  |a 2-s2.0-0020508019 
024 7 |2 cas  |a testosterone propionate, 57-85-2; Androgens; Estrenes; Metribolone, 965-93-5; Peptide Hydrolases, EC 3.4; Receptors, Androgen; Receptors, Steroid; Testosterone, 57-85-2 
040 |a Scopus  |b spa  |c AR-BaUEN  |d AR-BaUEN 
100 1 |a Tezon, J.G. 
245 1 0 |a Androgens control androgen-binding sites in rat epididymis 
260 |c 1983 
506 |2 openaire  |e Política editorial 
504 |a Podestä, E.J., Calandra, R.S., Rivarola, M.A., Blaquier, J.A., The effect of castration and testosterone replacement on specific proteins and androgen levels of the rat epididymis (1975) Endocrinology, 97, p. 399 
504 |a Calandra, R.S., Blaquier, J.A., Del Castillo, E.J., Rivarola, M.A., Androgen dependency of the androgen receptor in rat epididymis (1975) Biochem Biophys Res Commun, 67, p. 97 
504 |a Pujol, A., Bayard, F., Androgen receptors in the rat epididymis and their hormonal control (1979) J Reprod Fertil, 56, p. 217 
504 |a Calandra, R.S., Purvis, K., Attramadal, A., Hansson, V., Androgen receptors in rat epididymis do not disappear after castration (1977) J Steroid Biochem, 8, p. 1205 
504 |a Tezon, J.G., Vazquez, M.H., Blaquier, J.A., Androgen determined subcellular distribution of receptor in rat epididymis. 5a-DHT induced nuclear translocation is blocked by antiandrogens (1982) Endocrinology, 111, p. 2039 
504 |a Blaquier, J.A., Selective uptake and metabolism of androgens by rat epididymis. The presence of a cytoplasmic receptor (1971) Biochem Biophys Res Commun, 45, p. 1076 
504 |a Fell, H.B., Dingle, J.T., Studies on the mode of action of excess vitamin A 6. Lysosomal protease and the degradation of cartilage matrix (1963) Biochem J, 87, p. 403 
504 |a Lowry, O., Rosebrough, N.S., Farr, A.L., Randall, R.J., Protein measurement with the Folin phenol reagent (1951) J Biol Chem, 193, p. 265 
504 |a Burton, K., A study of the conditions and mechanism of the diphenylamine reaction for the colorimetric estimation of deoxyribonucleic acid (1956) Biochem J, 62, p. 315 
504 |a Blaquier, J.A., Breger, D., The in vitro effects of androgens on RNA synthesis by cultured rat epididymal tubules (1974) Endocr Res Commun, 1, p. 247 
504 |a Mori, H., Christensen, A.K., Morphometrie analysis of Leydig cells in the normal rat testis (1980) J Cell Biol, 84, p. 340 
504 |a Tindall, D.J., Hansson, V., Sar, M., Stumpf, W.E., Frech, F.S., Nayfeh, S.N., Further studies on the accumulation and binding of androgens in rat epididymis (1974) Endocrinology, 95, p. 1119 
504 |a De Larminat, M.A., Monsalve, A., Charreau, E.H., Calandra, R.S., Blaquier, J.A., Hormonal regulation of 5a-reductase activity in rat epididymis (1978) J Endocrinol, 79, p. 157 
504 |a Cameo, M.S., Blaquier, J.A., Androgen-controlled specific proteins in rat epididymis (1976) J Endocrinol, 69, p. 47 
504 |a Parker, M.G., Scrace, G.T., Mainwaring, W., Testosterone regulates the synthesis of major proteins in rat ventral prostate (1978) Biochem J, 170, p. 115 
504 |a Lesser, B., Bruchovsky, N., The effects of testosterone, 5a-dihydrotestosterone and adenosine 3'-5' monophosphate on cell proliferation and differentiation in rat prostate (1973) Biochim Biophys Acta, 308, p. 426 
504 |a Clark, J.H., Hardin, J.W., Upchurch, S., Eriksson H1978 Heterogeneity of estrogen binding sites in the cytosol of rat uterus J Biol Chem, 253, p. 7630 
504 |a Maclusky, N.J., McEwen, B.S., Progestin receptor in rat brain: Distribution and properties of cytoplasmic progestin-binding sites (1980) Endocrinology, 106, p. 192 
520 3 |a Previous results suggested that the number of androgen-binding sites in rat epididymis was controlled by androgens. Using an exchange technique for receptor determination, we now report that cytoplasmic receptor number decreased to about half the control value after 4 days of castration and reached its lowest level (30% of the control value) after 12 days of castration. The Kd for [3H]methyltrienolone for cytoplasmic receptor varied from 2.8 × 10−9 M in controls to 0.6 × 10−9 M (P < 0.001) after 6 or more days of castration. Nuclear binding sites were reduced to 17% of the control value from the second day of castration on, but no change in the affinity for methyltrienolone was noted. The administration of testosterone propionate (400 μg/day) to rats castrated for 20 days significantly increased the number of nuclear and cytoplasmic binding sites from the second and third days of treatment, respectively. Labeled thymidine incorporation into DNA rose significantly after a 4-day latency period. The proportion of total binding sites capable of translocation into the nucleus was elevated during the early phase (2–4 days) of androgen treatment. These results also suggest the heterogeneity of the cytoplasmic binding site population. Control epididymides were composed of 61.5% receptor-containing epithelial cells, and this proportion was significantly reduced to 53.2% after 20 days of castration. Androgen administration elevated this percentage after an 8-day latency period. Proteolytic activity in cytosol was increased over control values after castration (for 20 days) and until the fourth day after the onset of androgen treatment. However, this activity does not seem to be an important factor in the decrease in binding sites caused by orchidectomy. © 1983 by The Endocrine Society.  |l eng 
593 |a Institute de Biologia y Medicina Experimental, Laboratorio de Esteroides, Obligado 2490, Buenos Aires, 1428, Argentina 
690 1 0 |a ANDROGEN 
690 1 0 |a CELL NUCLEUS RECEPTOR 
690 1 0 |a CYTOSOL RECEPTOR 
690 1 0 |a RADIOISOTOPE 
690 1 0 |a TESTOSTERONE PROPIONATE 
690 1 0 |a ANIMAL CELL 
690 1 0 |a CASTRATION 
690 1 0 |a DRUG EFFICACY 
690 1 0 |a DRUG RECEPTOR BINDING 
690 1 0 |a ENDOCRINE SYSTEM 
690 1 0 |a EPIDIDYMIS 
690 1 0 |a MALE GENITAL SYSTEM 
690 1 0 |a METHYLTRIENOLONE H 3 
690 1 0 |a NONHUMAN 
690 1 0 |a PHARMACOKINETICS 
690 1 0 |a RAT 
690 1 0 |a THYMIDINE H 3 
690 1 0 |a ANDROGENS 
690 1 0 |a ANIMAL 
690 1 0 |a CASTRATION 
690 1 0 |a CELL NUCLEUS 
690 1 0 |a CYTOPLASM 
690 1 0 |a EPIDIDYMIS 
690 1 0 |a ESTRENES 
690 1 0 |a MALE 
690 1 0 |a METRIBOLONE 
690 1 0 |a PEPTIDE HYDROLASES 
690 1 0 |a RATS 
690 1 0 |a RATS, INBRED STRAINS 
690 1 0 |a RECEPTORS, ANDROGEN 
690 1 0 |a RECEPTORS, STEROID 
690 1 0 |a SUPPORT, NON-U.S. GOV'T 
690 1 0 |a TESTOSTERONE 
700 1 |a Blaquier, J.A. 
773 0 |d 1983  |g v. 113  |h pp. 1025-1030  |k n. 3  |p Endocrinology  |x 00137227  |w (AR-BaUEN)CENRE-4573  |t Endocrinology 
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856 4 0 |u https://doi.org/10.1210/endo-113-3-1025  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_00137227_v113_n3_p1025_Tezon  |y Handle 
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