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      Ácido acetilsalicílico (AAS) inhibe angiogénesis en membrana alantocorionica de pollo (MAC) Translated title: Acetyl-salicylic acid inhibits angiogenesis in alanto chorionic chicken membrane

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          Abstract

          Introducción: El ácido acetilsalicílico (AAS) es ampliamente utilizado en el manejo de patología cardiovascular. En modelos "in vitro" el AAS restringe la angiogénesis, atribuyéndose este efecto al bloqueo de ciclooxigenasa-1, manteniendo íntegra la zona adhe-rente endotelial, citotoxicidad directa y otras vías de señalización. Hipótesis: El AAS en concentración terapéutica antiplaquetaria utilizada en humanos ejerce un efecto antiangiogénico en modelo de membrana alantocorió-nica de pollo (MAC). Objetivo: Comparar la capacidad antiangiogénica del AAS en distintas concentraciones en MAC utilizando como punto de comparación la angiogénesis fisiológica de la MAC. Método: Se incubaron 46 huevos fecundados de gallinas White Leghorn, en cámara temperada a 37°C, provenientes del Instituto de Salud Pública de Chile. Mediante procedimiento descrito por Ribatti (2006), se instiló sobre filtro de metilcelulosa 10uL de Dimetilsulfóxido al 0.1% + m199, sin fármaco al control, asociado a AAS y ácido salicílico (AS) a los grupos de estudio en concentraciones 2mM y 5 mM. Posteriormente se fijó y analizó la muestra en forma ciega. Resultados: El promedio de vasos del control fue 21.8. Para el grupo AAS 2mM y 5mM fue 11.3 y 10, siendo para el grupo AS 2mM y 5mM 15.6 y 12.4. El análisis estadístico mediante ANOVA y t-Student muestra que todos los grupos que recibieron fármacos tuvieron una disminución significativa en el numero de vasos sanguíneos en relación al grupo control. No hubo diferencias significativas entre ambo grupos de AAS. El AS demostró tener mayor potencia antiangiogénica dosis dependiente. Discusión: En este estudio se demuestra que el AAS ejerce un efecto antiangiogénico en concentración terapéutica en condiciones fisiológicas de un modelo "in vivo".

          Translated abstract

          Background: Acetylsalicylic acid (ASA) is widely used in the treatment of various cardiovascular disorders. In vitro, AAS decreases angiogenesis, through cyclo-oxigenase-1 blockade while keeping active the adherent endothelial zone, direct toxicity and other signaling pathways. Hypothesis: AAS at therapeutic anti plaquetary doses exerts an anti-angiogenic effect in the alanto choronic chicken membrane (ACM) Method: 46 fertilized eggs form White Leghorn hens were incubated at 37oC. 10 uL of 0.1% Dimethyl sulfoxide +Ml 19 with no drug were used as control, while experimental groups received ASA and Salicylic acid (SA), 2mM. After fixation, samples were analyzed in a blind fashion Results: The mean number of vessels was 21.8 for controls, 11.3 and 10 for ASA 2mM and ASA 5mM, respectively. Corresponding values for SA 2 and SA 5mM were 15.6 and 12.4, respectively. Thus, a statistically significant (ANOVA and Student's t) decrease in the number of vessels was observed in both ASA groups. SA showed had a greater potential for anti-angiogenesis in a dose dependent way. Conclusion: This study shows that ASA in therapeutic concentrations has an anti-angiogenic effect in a physiologic model in vivo.

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          Angiogenesis in life, disease and medicine.

          The growth of blood vessels (a process known as angiogenesis) is essential for organ growth and repair. An imbalance in this process contributes to numerous malignant, inflammatory, ischaemic, infectious and immune disorders. Recently, the first anti-angiogenic agents have been approved for the treatment of cancer and blindness. Angiogenesis research will probably change the face of medicine in the next decades, with more than 500 million people worldwide predicted to benefit from pro- or anti-angiogenesis treatments.
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            The Chick Embryo Chorioallantoic Membrane in the Study of Angiogenesis and Metastasis

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              A quantitative angiogenesis model for efficacy testing of chemopreventive agents

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                rchcardiol
                Revista chilena de cardiología
                Rev Chil Cardiol
                Sociedad Chilena de Cardiología y Cirugía Cardiovascular
                0718-8560
                2016
                : 35
                : 2
                : 127-132
                Affiliations
                [1 ] Universidad de Chile Chile
                [2 ] Clínica Indisa Chile
                [3 ] Hospital San José Chile
                Article
                S0718-85602016000200005
                dd0639b7-93ab-4905-bbc5-11cf271ae1ee

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                Product

                SciELO Chile

                Self URI (journal page): http://www.scielo.cl/scielo.php?script=sci_serial&pid=0718-8560&lng=en
                Categories
                CARDIAC & CARDIOVASCULAR SYSTEMS

                Cardiovascular Medicine
                Aspirin,salicylic acid,angiogenesis,chorioallantoic membrane,chicken
                Cardiovascular Medicine
                Aspirin, salicylic acid, angiogenesis, chorioallantoic membrane, chicken

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