In-vitro activity of topoisomerase inhibitors against Pneumocystis carinii
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چکیده
منابع مشابه
Activity of inosine analogs against Pneumocystis carinii in culture.
Three analogs of inosine, formycin B, allopurinol ribonucleoside, and 9-deazainosine, were tested for their ability to suppress proliferation of Pneumocystis carinii in culture with WI-38 cells. The organism was inhibited by 9-deazainosine at 10 micrograms/ml, and there was some inhibition at 1 microgram/ml. Formycin B was effective only at 40 micrograms/ml. Allopurinol ribonucleoside had littl...
متن کاملIn-vitro activity of lytic peptides, inhibitors of ion transport systems and ionophorous antibiotics against Pneumocystis carinii.
The in-vitro activity of two vertebrate lytic peptides, two ion transport system inhibitors and two polyether ionophores was investigated against four clinical isolates of Pneumocystis carinii recovered from bronchoalveolar lavages of AIDS patients. The susceptibility tests were performed by inoculating the isolates on to cell monolayers and determining the parasite count after 72 h incubation ...
متن کاملGrowth of Pneumocystis Carinii in Axenic Culture
SUMMARY In this research, which was done for two years, we investigated various liquid and solid media without feeder ceells, for the ability to support growth of P. carinii. Data obtained from counting the organisms nuclei showed that, addition of Cycloheximide, penicillin, & streptomycin to neopeptoneN-Acetyle Glucoseamine (N.P.G. medium) can provides growth requirements of organism in its...
متن کاملAction of deferoxamine against Pneumocystis carinii.
We found earlier that deferoxamine (DFO), a drug used for treatment of iron overload, is active against a rat model of Pneumocystis carinii pneumonia (PCP). We had assumed a mode of action by deprivation of nutritional iron; however, data here show that DFO penetrates P. carinii, causing irreversible damage, thus indicating a different mode of action. Penetration was demonstrated by showing DFO...
متن کاملActivity of lipid-soluble inhibitors of dihydrofolate reductase against Pneumocystis carinii in culture and in a rat model of infection.
Trimetrexate and BW301U (piritrexim isethionate), lipid-soluble inhibitors of dihydrofolate reductase, are potent inhibitors of the growth of Pneumocystis carinii in culture with WI-38 cells. Inhibition was observed with 0.1 microgram of trimetrexate or BW301U per ml. Trimethoprim is ineffective at 100 micrograms/ml in this culture system. Both trimetrexate and BW301U were effective as prophyla...
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ژورنال
عنوان ژورنال: Journal of Antimicrobial Chemotherapy
سال: 1997
ISSN: 0305-7453,1460-2091
DOI: 10.1093/jac/40.4.583