Efecto antibacteriano de Surfacen® y la proteína A del surfactante pulmonar frente a un aislado clínico de Streptococcus pneumoniae
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Abstract
Surfacen®, una preparación clínica de surfactante pulmonar exógeno, y la proteína A del surfactante pulmonar (SP-A), se evaluaron en relación a su efecto in vitro sobre el crecimiento de un aislado
clínico de Streptococcus pneumoniae. La bacteria fue incubada en solución salina durante 5 h a 37oC junto a Surfacen® y la SP-A. Los resultados mostraron que Surfacen®, a las concentraciones de 10 y 25 mg/ml, logró una reducción de un logaritmo del crecimiento bacteriano; a su vez la SP-A porcina tuvo igual efecto a las concentraciones de 0,25; 0,5 y 1 mg/ml. La adición de SP-A porcina a la máxima concentración de Surfacen® (25 mg/ml) mostró una mayor actividad antibacteriana al reducir dos logaritmos del crecimiento bacteriano.
Palabra clave: surfactante pulmonar, Surfacen®, antibacteriano, proteína A del surfactante (SP-A), Síndrome de Distrés Respiratorio Agudo.
ANTIBACTERIAL EFFECT OF SURFACEN AND SURFACTANT PROTEIN A (SP-A) AGAINST A CLINICAL ISOLATE OF STREPTOCOCCUS PNEUMONIAE
ABSTRACT: Surfacen®, a clinical preparation of exogenous pulmonary surfactant, and pulmonary surfactant protein A (SP-A) were evaluated in relation to their in vitro effect on the growth of a clinical isolate of Streptococcus pneumoniae. The bacterium was incubated in a normal saline solution for 5 h at 37oC, together with Surfacen® and SP-A. Surfacen® showed antibacterial activity against the clinical isolate of Streptococcus pneumonia at 10 or 25 mg/ml with one logarithm of reduction of the bacterial growth; also SP-A had the same effect at concentrations of 0.25, 0.5 or 1 mg/ml. Porcine SP-A addition at the highest Surfacen® concentration (25 mg/ml) showed a higher antibacterial activity by reducing two logarithms of bacterial growth.
Key word: lung surfactant, Surfacen®, antibacterial, Surfactant Protein A (SP-A), Acute Respiratory Distress Syndrome.
clínico de Streptococcus pneumoniae. La bacteria fue incubada en solución salina durante 5 h a 37oC junto a Surfacen® y la SP-A. Los resultados mostraron que Surfacen®, a las concentraciones de 10 y 25 mg/ml, logró una reducción de un logaritmo del crecimiento bacteriano; a su vez la SP-A porcina tuvo igual efecto a las concentraciones de 0,25; 0,5 y 1 mg/ml. La adición de SP-A porcina a la máxima concentración de Surfacen® (25 mg/ml) mostró una mayor actividad antibacteriana al reducir dos logaritmos del crecimiento bacteriano.
Palabra clave: surfactante pulmonar, Surfacen®, antibacteriano, proteína A del surfactante (SP-A), Síndrome de Distrés Respiratorio Agudo.
ANTIBACTERIAL EFFECT OF SURFACEN AND SURFACTANT PROTEIN A (SP-A) AGAINST A CLINICAL ISOLATE OF STREPTOCOCCUS PNEUMONIAE
ABSTRACT: Surfacen®, a clinical preparation of exogenous pulmonary surfactant, and pulmonary surfactant protein A (SP-A) were evaluated in relation to their in vitro effect on the growth of a clinical isolate of Streptococcus pneumoniae. The bacterium was incubated in a normal saline solution for 5 h at 37oC, together with Surfacen® and SP-A. Surfacen® showed antibacterial activity against the clinical isolate of Streptococcus pneumonia at 10 or 25 mg/ml with one logarithm of reduction of the bacterial growth; also SP-A had the same effect at concentrations of 0.25, 0.5 or 1 mg/ml. Porcine SP-A addition at the highest Surfacen® concentration (25 mg/ml) showed a higher antibacterial activity by reducing two logarithms of bacterial growth.
Key word: lung surfactant, Surfacen®, antibacterial, Surfactant Protein A (SP-A), Acute Respiratory Distress Syndrome.
Article Details
How to Cite
1.
Blanco Hidalgo O, Lugones Ladrón de Guevara Y, Riverón Alemán Y, Núñez Drake A, Toraño Peraza G, Faure García R. Efecto antibacteriano de Surfacen® y la proteína A del surfactante pulmonar frente a un aislado clínico de Streptococcus pneumoniae. Rev. Salud Anim. [Internet]. 2014 Apr. 29 [cited 2024 Nov. 24];36(1):48. Available from: https://revistas.censa.edu.cu/index.php/RSA/article/view/371
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COMUNICACIÓN CORTA
National Center for Animal and Plant Health (CENSA)