## Abstract Withaferin A, a steroidal lactone with carcinostatic properties, isolated from the leaves of Withania somnifera Dun., produced a mitotic arrest in the metaphase of dividing Ehrlich ascites carcinoma cells. In addition this compound also induced vacuolization of the cytoplasm. A single d
Effect of plasma gangliosides on the growth of ehrlich ascites tumor
β Scribed by Sandip Saha; Asit Ghosh
- Publisher
- John Wiley and Sons
- Year
- 1990
- Tongue
- French
- Weight
- 522 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0020-7136
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β¦ Synopsis
Abstract
Total plasma gangliosides of Ehrlich ascltes tumorβbearing mice enhanced tumor growth when adoptively transferred with the same tumor cells in mice. However, individual gangliosides acted differently. Out of 6 gangliosides separated from plasma, 2 components enhanced tumor growth, whereas the remaining 4 inhibited tumor growth, Neither of the 2 enhancing components in various combinations with the 4 inhibitory components could restore the enhancing effect. The enhancing effect was restored only when both the enhancing components were mixed with the remaining 4 ganglioside components, i. e., with full/complete reconstitution.
π SIMILAR VOLUMES
The effect of di-and trivalent cations on the membrane potential of the Ehrlich ascites tumor cell has been investigated using micro-electrode techniques. In solutions free of multivalent cations the average membrane potential for 46 cells was 8.3 f 0.5 mv (SE). However, the potentials were not stab
To determine the extent of coupling between the transport of potassium and the transport of amino acids by the Ehrlich mouse ascites tumor cell, we have investigated the effect of pyridoxal on potassium fluxes. We have chosen a low Concentration of pyridoxal (1 mM) known to increase the cell to medi
The effect of extracellular Pi and arsenate on Pi-transport in Ehrlich ascites tumor cells has been studied. Pi-transport can be described by Michaelis-Menten kinetics; the maximal flux equal to 44 mmoles (kg cell water)-' hour-' and K m equal to 3.3 X 1 0 -4 M. Arsenate is a competitive inhibitor o
## Abstract The steady state transport and distribution of chloride between the intracellular and extracellular phases was investigated when the extracellular chloride concentration was varied by isosmotic replacement with nitrate, bromide and acetate. The results of these experiments show that chl