Pyrimethamine, an antimalarial drug, was found to be able to inhibit both enzymes (DHFR-TS and PTR1) of the leishmanial folate pathway, although this effect in vivo appears only in relatively high concentrations. To reach the parasites inside macrophage cells, where they are sheltered, targeted drug
Use of in vitro method to assess different brands of anti-leishmanial drugs
β Scribed by Sunil K. Arora; Raghu Sinha; Shobha Sehgal
- Book ID
- 104657683
- Publisher
- Springer-Verlag
- Year
- 1991
- Tongue
- English
- Weight
- 810 KB
- Volume
- 180
- Category
- Article
- ISSN
- 0300-8584
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β¦ Synopsis
Reports in the literature indicate the use of animal models for testing newer anti-leishmanial drugs in vivo. However, in certain established cell lines and macrophages in vitro models have the advantage over the in vivo system of simplicity and speed with which the results can be obtained. A simple in vitro system using peritoneal exudate macrophages of BALB/c mice infected with Leishmania donovani promastigotes has been tested for its use in determining the efficacy of several new drugs. Two well-established drugs, amphotericin B and sodium stibogluconate, as expected, could kill the intracellular parasites effectively. Two relatively new drugs not routinely used against leishmania, rifampicin and metronidazole at concentrations of 20 pg/ml and 10 pg/ml, respectively, were also able to kill the intracellular leishmania parasites effectively. Critical factors for drug testing in vitro have been elucidated: the most important being the temperature of incubation after infection.
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