Activity of aztreonam in pneumology, Part 2: Influence on phagocytosis and intracellular killing of human alveolar macrophages.
J Chemother
; 6(1): 44-9, 1994 Feb.
Article
en En
| MEDLINE
| ID: mdl-8071678
ABSTRACT
The study aim was to evaluate the activity of aztreonam on phagocytosis and intracellular killing of Staphylococcus aureus ATCC6538 by human alveolar macrophages. Drug concentrations of 1, 10, 25, 100 micrograms/ml were assayed in culture medium. Aztreonam induces dose-dependent phagocytosis up to 25 micrograms/ml concentrations; with a phagocytosis index (PIa) of 1.18 +/- 0.2 at 1 microgram/ml; of 1.27 +/- 0.2 at 10 micrograms/ml; of 1.42 +/- 0.3 at 25 micrograms/ml. No phagocytosis increase or inhibition, with unchanged cell viability compared to controls, is shown at 100 micrograms/ml aztreonam (PI 1.03 +/- 0.3). Intracellular killing acts in a similar way the killing index (KIa) is 1.27 +/- 0.3 at 1 microgram/ml concentrations; 1.38 +/- 0.3 at 10 micrograms/ml; 1.61 +/- 0.4 at 25 micrograms/ml whereas at 100 micrograms/ml the KIa is 1.03 +/- 0.3. This study shows aztreonam's ability to stimulate macrophages' functional activity against a microorganism (S. aureus) which is not susceptible to its antibacterial activity.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Fagocitosis
/
Aztreonam
/
Adyuvantes Inmunológicos
/
Macrófagos Alveolares
Límite:
Humans
Idioma:
En
Revista:
J Chemother
Asunto de la revista:
ANTINEOPLASICOS
/
TERAPIA POR MEDICAMENTOS
Año:
1994
Tipo del documento:
Article
País de afiliación:
Italia