PMID: 7288155Jan 1, 1981Paper

Autoradiographic and biochemical studies of hormone receptor localization

The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society
P J SheridanV Anselmo


Autoradiography has been used in the past to locate presumptive receptor systems for a number of steroids. It has provided information in rather complex tissues that could not have been obtained by biochemical procedures. In these studies we made use of autoradiography to redirect our biochemical efforts to study androgen receptors in the primate heart. Castrated-adrenalectomized female rhesus monkeys and baboons were injected with 1 microgram and 5 alpha-dihydro-[1,2,4,5,6,7-3H]-testosterone per kilogram of body weight. The animals were killed 1 hour later and the hearts were removed and processed for autoradiography. A nuclear localization of androgen was found in most of the myocardial cells, but in few if any of the interstitial cells. After reviewing the autoradiographic data, we began a new series of biochemical studies using a new buffer system and unlabeled androgen to stabilize the receptor. This in combination with postlabeled gradients allowed us to demonstrate for the first time 8S binding on sucrose density gradients. We feel that autoradiography can be a useful adjunct to biochemical studies even in "less complex" tissue such as the cardiac muscle.


Jul 1, 1985·Pathology, Research and Practice·F T BosmanJ Kracht

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