The carcinostatic activity of elatericin A, elatericin B, elaterin, elaterin methylether, dihydroelatericin A, and tetrahydroelatericin A, all cucurbitacins of a triterpene structure, and of trans-4-hydroxy-4-methylpent-~-enoic acid, the isolated side chain of the cucurbitacin molecule, was studied. Three cucurbitacins, elatericin A, elatericin B, and elaterin produced a moderate inhibition of ...

Anl i-tumor sera are now being extensively used in investigations of the activities of neoplasms (e.g. 4-7, 9-13, 15). I t is already known (7), concerning their effects on the biochemical activities of tumors, that Ehrlich ascites carcinoma cells, treated with their antisera in the presence of comp]ement, lose their capacity to respire in the presence of glucose but not in the presence of succ...

The effects of a number of alkylating agents on the in vitro incorporation of glycine1-C ~4 into the ethanol/acetone-insoluble fraction of Ehrlich ascites carcinoma cells have been studied. With the exception of 1:6-dimethanesulfonyl-D-mannitol, all inhibit (at the concentrations tested) this incorporation in varying degrees, with little or no effect on the respiration of the cells. The process...

1. Aerobic or anaerobic incubation at 37 degrees of Ehrlich ascites-carcinoma cells in Krebs-Ringer bicarbonate medium containing glucose and labelled thiamine results in accumulation in the cell of labelled thiamine, so that the concentration of total labelled thiamine in the cells greatly exceeds (by a factor 7) that in the medium. This concentration ratio is approximately constant for small ...

In the present paper we have studied: (a) the concentration of fibronectin (FN) in plasma and in ascitic fluid of mice at different times after inoculation of Ehrlich ascites tumor cells; (b) the ability of Ehrlich ascites cells to synthesize and release FN; and (c) the localization of FN in Ehrlich ascites cells by immunofluorescence microscopy. It was found that (a) 4 to 5 days after inoculat...

The concurrent administration of Griffonia simplicifolia lectin into the peritoneal cavity of mice has been reported to protect them from challenge with Ehrlich ascites tumor cells. This study demonstrates that the GS I lectin is capable of binding to the surface of both inflammatory macrophages and Ehrlich ascites tumor cells and can mediate macrophage lectin-dependent cytotoxicity to this tum...

Guaroa virus inhibited or destroyed ascites tumors (Ehrlich or Sarcoma 180) of Swiss white mice when inoculated intraperitoneally from 1 to 6 days after tumor in jection. Thirty of 79 virus-treated mice survived 30 days after injection of Ehrlich ascites cells without accumulation of ascites, whereas all but two of 73 controls died with a mean survival time of 15 days. With Sarcoma 180 ascites,...

The methanolic extracts of Indigofera aspalathoides (MEIA) and Wedelia calendulaceae (MEWC) were evaluated for their anticancer activity against Ehrlich Ascites Carcinoma (EAC) in Swiss albino mice. On day 1, the extract of Indigofera aspalathoides at a dose of 250 and 500 mg/kg body weight and the extract of Wedelia calendulaceae at a dose of 250 and 500 mg/kg body weight were administered ora...

The antitumor activity of ethanol extract of Prosopis glandulosa Torr. (EPG) was evaluated against Ehrlich ascites carcinoma (EAC) tumor model in Swiss albino mice on dose dependent manner. The activity was assessed using survival time, average increase in body weight, hematological parameters and solid tumor volume. Oral administration of EPG at the dose of 100, 200 and 400 mg/Kg, significantl...

(-)-Emetine has little or no effect on O(2) consumption of Ehrlich ascites-cell suspensions or on the viability of transplanted Ehrlich ascites-tumour cells exposed to, or incubated with, the drug in vitro before inoculation into new-host mice. (-)-Emetine administered as a single injection to mice bearing Ehrlich ascites-tumour cells slows the growth rate of the tumour. The subcutaneous or int...