Search results for "Ehrlich ascites carcinoma"
showing 4 items of 4 documents
Synthesis, characterization of diorganotin(IV) complexes of N-(2-hydroxyarylidene)aminoacetic acid and antitumour screening in vivo in ehrlich ascite…
2001
Some new diorganotin(IV) complexes have been prepared by reacting potassium N-(2-hydroxyarylidene)aminoacetate with R2SnCl2(R = Me,nBu,Ph). The complexes have been characterized by 1H,13C,119Sn NMR, IR and 119mSn Mössbauer spectroscopic techniques in combination with elemental analysis. In the solid state, the complexes possess penta- and hexa-coordinated tin centres. The hexa-coordinated tin complexes were found to dissociate in solution, giving rise to penta-coordinated species as revealed by 119Sn NMR spectroscopy. Antitumour screening in vivo of the complexes L4snPh2,L4SnPh2· Ph3SnCl and L4SntBU2·t Bu2SnCl2 (L4 = N-(2-hydroxyacetophenone)aminoacetate) is also reported. Copyright © 2001 …
Verapamil Inhibits the Respiration Rate of Cancer Cells
1986
Calcium antagonists have successfully been used in the treatment of hypertension, cardiac arrhythmias and coronary heart disease. Recent evidence has suggested that such agents may also play a role in the treatment of malignant tumors. Verapamil, a calcium entry blocker, has been reported to enhance the cytotoxicity of several anticancer drugs under in vitro- and in vivo-conditions [1–10]. The effects observed could be explained by an enhanced drug accumulation due to a Verapamil-induced inhibition of the drug efflux from the cancer cells.
Targeting the mitochondrial pathway to induce apoptosis/necrosis through ROS by a newly developed Schiff’s base to overcome MDR in cancer
2011
Abstract Multidrug resistance (MDR) in cancer, a major obstacle to successful application of cancer chemotherapy, is often characterized by over-expression of multidrug resistance-related proteins such as MRP1, P-gp or elevated glutathione (GSH) level. Efflux of drugs by functional P-gp, MRP1 and elevated GSH level can confer resistance to apoptosis induced by a range of different stimuli. Therefore, it is necessary to develop new cell death inducers with relatively lower toxicity toward non-malignant cells that can overcome MDR by induction of apoptotic or non-apoptotic cell death pathways. Herein we report the synthesis and spectroscopic characterization of a GSH depleting, redox active S…
Pathophysiological Aspects of Glucose Uptake by the Tumor Tissue under Various Conditions of Oxygen and Glucose Supply
1976
Earlier examinations of the glucose uptake in neoplastic tissue by isolated DS- Carcinosarcoma implanted into the rat kidney had the results as follows (VAUPEL, 1974): 1. An increase of the tumor mass from 3 to 13 g wet weight caused an exponential decrease of the glucose consumption by the tumor tissue from 44.4 to 6.7/umoles per 100 g/min; very young tumors of 3 – 4 g bad uptake rates from 27.8 to 44.4/umoles/100 g/min. 2. Simultaneous measurements of the mean actual glucose concentrations in the tumor tissue showed that in the very young tumors the concentration still ranged from 1.75 to 2.25/umoles/g wet weight, whereas those in old tumors drop as low as 0 to 0.17/umoles/g.