guanosine-diphosphate and Carcinoma

guanosine-diphosphate has been researched along with Carcinoma* in 2 studies

Other Studies

2 other study(ies) available for guanosine-diphosphate and Carcinoma

Article	Year
Isolation and properties of the subunit form EF-1C of elongation factor 1 from Guerin epithelioma cells. Acta biochimica Polonica, 1993, Volume: 40, Issue:2 EF-1C is a component of the aggregate EF-1B, consisting of the subunit forms EF-1A.EF-1C; it was isolated by dissociation of this aggregate in the presence of GTP. The subunit form EF-1C stimulates binding of aminoacyl-tRNA to ribosomes, catalysed by EF-1A, similarly as EF-1 beta gamma which stimulates the activity of EF-1 in other eukaryotic cells. EF-1C in the presence of 6 M urea was separated into two polypeptides. Polypeptide of molecular mass 32,000 Da is responsible for regeneration of the EF-1A.GTP active complex. Thermal sensitivity of EF-1A was much higher than that of EF-1B, thus a protective role of EF-1C in the EF-1A.EF-1C complex is suggested. Topics: Animals; Carcinoma; Electrophoresis, Polyacrylamide Gel; Guanosine Diphosphate; Guanosine Triphosphate; Liver; Macromolecular Substances; Neoplasm Proteins; Neoplasms, Experimental; Peptide Biosynthesis; Peptide Elongation Factor 1; Peptide Elongation Factors; Peptides; Rats; Ribosomes; RNA, Transfer, Phe; Stimulation, Chemical; Tumor Cells, Cultured	1993
Synergistic action of taxol and tiazofurin in human ovarian, pancreatic and lung carcinoma cells. Cancer biochemistry biophysics, 1993, Volume: 13, Issue:4 Since taxol (NSC 125975) and tiazofurin (NSC 286193) attack at two different sites in microtubular synthetic processes, we tested the rationale that the two drugs might be synergistic in human ovarian (OVCAR-5), pancreatic (PANC-1) and lung carcinoma (H-125) cells and in rat hepatoma 3924A cells. In human OVCAR-5, PANC-1, H-125 and rat 3924A cells, for taxol the anti-proliferative IC50 was 0.05, 0.06, 0.03 and 0.04 microM, respectively; for tiazofurin IC50 = 8.3, 2.3, 1.8 and 6.9 microM. Thus, the concentrations for taxol required for IC50 for inhibiting cell proliferation were 166-, 38-, 60- and 173-fold lower than those for tiazofurin. Taxol and tiazofurin proved synergistic in all four cell lines tested. The synergism of taxol with tiazofurin should have implications in the clinical treatment of human solid tumors with particular relevance to ovarian, pancreatic, lung and hepatocellular carcinomas. Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Phytogenic; Carcinoma; Carcinoma, Adenosquamous; Cell Division; Drug Screening Assays, Antitumor; Drug Synergism; Female; Guanosine Diphosphate; Guanosine Triphosphate; Humans; Liver Neoplasms, Experimental; Lung Neoplasms; Ovarian Neoplasms; Paclitaxel; Pancreatic Neoplasms; Rats; Ribavirin; Spindle Apparatus; Tumor Cells, Cultured	1993

Article

Year

Isolation and properties of the subunit form EF-1C of elongation factor 1 from Guerin epithelioma cells.

Acta biochimica Polonica, 1993, Volume: 40, Issue:2

EF-1C is a component of the aggregate EF-1B, consisting of the subunit forms EF-1A.EF-1C; it was isolated by dissociation of this aggregate in the presence of GTP. The subunit form EF-1C stimulates binding of aminoacyl-tRNA to ribosomes, catalysed by EF-1A, similarly as EF-1 beta gamma which stimulates the activity of EF-1 in other eukaryotic cells. EF-1C in the presence of 6 M urea was separated into two polypeptides. Polypeptide of molecular mass 32,000 Da is responsible for regeneration of the EF-1A.GTP active complex. Thermal sensitivity of EF-1A was much higher than that of EF-1B, thus a protective role of EF-1C in the EF-1A.EF-1C complex is suggested.

Topics: Animals; Carcinoma; Electrophoresis, Polyacrylamide Gel; Guanosine Diphosphate; Guanosine Triphosphate; Liver; Macromolecular Substances; Neoplasm Proteins; Neoplasms, Experimental; Peptide Biosynthesis; Peptide Elongation Factor 1; Peptide Elongation Factors; Peptides; Rats; Ribosomes; RNA, Transfer, Phe; Stimulation, Chemical; Tumor Cells, Cultured

1993

Synergistic action of taxol and tiazofurin in human ovarian, pancreatic and lung carcinoma cells.

Cancer biochemistry biophysics, 1993, Volume: 13, Issue:4

Since taxol (NSC 125975) and tiazofurin (NSC 286193) attack at two different sites in microtubular synthetic processes, we tested the rationale that the two drugs might be synergistic in human ovarian (OVCAR-5), pancreatic (PANC-1) and lung carcinoma (H-125) cells and in rat hepatoma 3924A cells. In human OVCAR-5, PANC-1, H-125 and rat 3924A cells, for taxol the anti-proliferative IC50 was 0.05, 0.06, 0.03 and 0.04 microM, respectively; for tiazofurin IC50 = 8.3, 2.3, 1.8 and 6.9 microM. Thus, the concentrations for taxol required for IC50 for inhibiting cell proliferation were 166-, 38-, 60- and 173-fold lower than those for tiazofurin. Taxol and tiazofurin proved synergistic in all four cell lines tested. The synergism of taxol with tiazofurin should have implications in the clinical treatment of human solid tumors with particular relevance to ovarian, pancreatic, lung and hepatocellular carcinomas.

Topics: Animals; Antineoplastic Agents; Antineoplastic Agents, Phytogenic; Carcinoma; Carcinoma, Adenosquamous; Cell Division; Drug Screening Assays, Antitumor; Drug Synergism; Female; Guanosine Diphosphate; Guanosine Triphosphate; Humans; Liver Neoplasms, Experimental; Lung Neoplasms; Ovarian Neoplasms; Paclitaxel; Pancreatic Neoplasms; Rats; Ribavirin; Spindle Apparatus; Tumor Cells, Cultured

1993