Abstract:
:Attenuation of the renal toxicity of cis-diamminedichloroplatinum (CDDP) is important in the use of this effective but cytotoxic anticancer agent. We have previously shown that the renal toxicity of CDDP can be efficiently reduced by the induction of metallothionein (MT) by preadministration of bismuth compounds in mice. Bismuth subnitrate (BSN) is used as an antigastric ulcer agent and as an antidiarrheic agent, and is suitable for inducing MT in the kidney in cancer patients. However, due to the low absorption rate of Bi from the gastrointestinal tract, the efficacy of BSN in inducing renal MT is low. In the present study, we examined the effects of citrate as a vehicle for oral administration of BSN on the tissue distribution of Bi and induction of MT in the kidneys and tumors in mice inoculated with Meth-A fibrosarcoma. Renal levels of MT and Bi were markedly increased in the mice given BSN dissolved in citrate solution compared with those given BSN suspended in saline. On the other hand, the use of citrate increased Bi accumulation in the tumor only slightly and did not increase tumor MT levels. Administration of BSN with citrate efficiently depressed the renal toxicity of CDDP, but did not affect its antitumor activity. Since both BSN and citrate are used clinically as pharmaceuticals, the combination regimen of BSN and citrate may be readily applicable as a countermeasure against the adverse side effects of CDDP without affecting its antitumor activity.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Kondo Y,Himeno S,Satoh M,Naganuma A,Nishimura T,Imura Ndoi
10.1007/s00280-003-0706-9keywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
33-8issue
1eissn
0344-5704issn
1432-0843journal_volume
53pub_type
杂志文章abstract::A simple fluorescent microscopic method demonstrated that adriamycin was distributed in two cellular compartments of living rat colon cancer cells. Adriamycin accumulated slowly in cytoplasmic granules, probably lysosomes, where it persisted long after the drug was removed from the medium. On the other hand, adriamyci...
journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,多中心研究
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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journal_title:Cancer chemotherapy and pharmacology
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