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Desarrollo de un modelo de aterosclerosis inducida por inmunocomplejos de forma pasiva en ratones BALB/CBJ transgénicos al antígeno de superficie de la hepatitis B

Keywords: ATEROSCLEROSIS , TECNICAS INMUNOLOGICAS , ANTIGENOS DE SUPERFICIE DE LA HEPATITIS B , RATONES TRANSGENICOS , ATHEROSCLEROSIS , IMMUNOLOGIC TECHNIQUES , HEPATITIS B SURFACE ANTIGENS , MICE , TRANSGENIC

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Abstract:

Se obtuvieron anticuerpos-HBs a partir del desarrollo de ascitis en ratones BALB/CBJ. Se emplearon 2 grupos de animales BALB/CBJ transgénicos al AgsHb, de 8 meses de edad y un régimen de agua y comida ad libitum. A un grupo se le inoculó Ac anti-HBs con una dosis doble a la de su concentración de AgsHb y al otro grupo se le inoculó solución salina. Se realizaron 7 inoculaciones con un intervalo de 5 d entre ellas por la vena caudal. Una semana después de la última inoculación se realizó extracción de sangre y se les determinó inmunocomplejos circulantes en plasma. Se les practicó eutanasia y se les extrajo las aortas donde se comprobó la formación de placas de ateromas de forma macroscópica por observación al estereoscopio y microscópicamente por tinción con hematosilina-eosina. A partir de estos resultados se concluyó que se logró un modelo de aterosclerosis en ratones BALB/CBJ Tg al AgsHb por formación de inmunocomplejos de forma pasiva. Anti-HBs antibody was obtained starting from the development of ascites in BALB/CBJ mice. Two groups of 8-month-old BALB/CBJ animals transgenic to HBsAg on an ad libitum water and food regimen were used. A group was inoculated anti-HBs antibody with a dose that doubled its concentration of HBsAg, whereas the other group was inoculated saline solution. 7 innoculations were made by the caudal vein with an interval of 5 days between them. A week after the last inoculation, blood was extracted and the immunocomplexes circulating in plasma were determined. Euthanasia was practiced and the aortas were extracted. The formation of plaques of atheromas was proved in a macroscopic way by observation on the stereoscopico and, microscopically, by staining with haematoxylin-eosin. Based on these results, it was concluded that an atherosclerosis model was attained in BALB/CBJ mice transgenic to HBsAg by the formation of immunocomplexes in a passive way.

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