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Induction of metallothionein by CdCl 2 administration in rat prostate
Author(s) -
Suzuki Takanori,
Yamanaka Hidetoshi,
Nakajima Katsuyuki,
Kanatani Kazushi,
Suzuki Keiji,
Kimura Masami,
Nakazawa Yasuo,
Otaki Noriko
Publication year - 1993
Publication title -
the prostate
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.295
H-Index - 123
eISSN - 1097-0045
pISSN - 0270-4137
DOI - 10.1002/pros.2990220209
Subject(s) - metallothionein , prostate , prostate disease , medicine , chemistry , endocrinology , biochemistry , cancer , gene
Metallothionein (MT) induction in the rat prostate gland was investigated by means of cadmium chloride administration. Ten‐week‐old male Wistar rats housed with cadmium free food were divided into three groups of six rats each and castrated. After seven days, 1 mg of testosterone propionate per rat was injected subcutaneously once a day until the end of the experiment. After three weeks, rats were injected daily for six days with a physiological saline, 0.3 mg/kg CdCl 2 , and 0.9 mg/kg CdCl 2 . MT concentration of the ventral and dorsal lobes was significantly increased in the three groups in proportion to the dose of CdCl 2 . MT content of the lateral lobe in three groups was also increased, but was not significantly different. Immunohistochemically, MT was induced mainly in the ventral lobe in the basal cells, and in the lateral and dorsal lobes in the epithelial cells. The weights of the prostatic lobes were similar in the three groups, and no histological change was identified. These results suggested that MT in the prostate was induced by cadmium administration, and that it may prevent cellular damage from harmful metals. © 1993 Wiley‐Liss, Inc.