Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:2.7.1.21 (thymidine kinase)
 7,561 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Sho-saiko-to (SST) and Juzen-taiho-to (JTT), Japanese modified Chinese herbal prescriptions, suppressed the activities of thymidylate synthetase and thymidine kinase involved in de novo and salvage pathways for pyrimidine nucleotide synthesis, respectively, in mammary tumors of SHN mice with the reduction of serum prolactin level. These results indicate that SST and JTT may have the antitumor effects on mammary tumors.
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PMID:Effects of Chinese herbal medicines on DNA-synthesizing enzyme activities in mammary tumors of mice. 803 Jun 18

Sho-Saiko-To (SST) is a modified Japanese traditional Chinese herbal medicine containing seven medical plants: Bupleuri radix, Pinelliae tuber, Suxtallariae radix, Zizyphi fructus, Ginseng radix, Glycyrrhizae radix, and Zingiberis recens rhizoma. This preparation has been used in the treatment of some inflammatory diseases of the respiratory system and chronic hepatitis. In the present study, the effects of SST were investigated on the activities of DNA-synthesizing enzymes in 1,2-dimethylhydrazine (DMH)-induced colonic carcinomas in rats. Six-week administration of SST prevented nearly 100% of the body weight loss and the final number of the colonic carcinomas compared to those in the rats treated with DMH alone, and suppressed the enhanced activities of thymidylate synthetase (TS) and thymidine kinase (TK) which were involved in the de novo and salvage pathways of pyrimidine synthesis, respectively, in DMH-induced colonic carcinomas. These results indicate that SST may show directly and/or indirectly inhibitory effects on the development of colonic carcinomas.
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PMID:Effects of kampo (Japanese herbal) medicine "sho-saiko-to" on DNA-synthesizing enzyme activity in 1,2-dimethylhydrazine-induced colonic carcinomas in rats. 848 94

Hyperplastic alveolar nodule (HAN) is a representative preneoplastic state in mammary glands of mice. We investigated the effect of Sho-saiko-to (SST; a Japanese modified traditional Chinese herbal medicine containing seven medicinal plants) on the formation and growth of HAN and mammary tumour growth in SHN virgin mice which showed a high incidence of spontaneous mammary tumours. Chronic oral administration of SST reduced the number and the area of HAN and mammary thymidylate synthetase (TS) activity with slight decrease of serum prolactin level. In the established mammary tumours of mice, 20-day administration of SST reduced the activity of TS and thymidine kinase (TK) with slight reduction of serum prolactin level, though the significant change of mammary-tumour growth was not observed. These results indicate that SST may prevent the mammary tumourigenesis by suppression of the de novo pathway for pyrimidine nucleotide synthesis and the mammary tumour growth by suppression of the salvage pathway as well as the de novo pathway in mice.
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PMID:Suppression of tumorigenesis and tumor-growth of mouse mammary-glands by a traditional chinese herbal medicine, sho-saiko-to. 2160 9