RESUMENTaenia solium es un helminto aplanado responsable de la teniosis y de la cisticercosis humana, siendo esta última producida por el consumo de huevos infectivos. Los cisticercos pueden desarrollarse en diferentes tejidos del hombre, frecuentemente en el sistema nervioso central causando la neurocisticercosis (NCC). Para el diagnóstico de la NCC se requiere de una adecuada interpretación de datos clínicos, resultados de neuroimagen y pruebas serológicas. Sin embargo, las pruebas serológicas podrían mejorarse con el desarrollo de antígenos candidatos capaces de incrementar su sensibilidad y especificidad. En los últimos años se han descrito una serie de proteínas de superficie y de secreción de T. solium esenciales para la interacción parásito-hospedero. Una de estas familias son las cisteínoproteasas catepsinas L, las cuales cumplen un rol preponderante para el desarrollo y supervivencia del parásito, participando en la invasión tisular, la evasión de la respuesta inmune, el desenquistamiento y enquistamiento del cisticerco. Son consideradas como antígenos potenciales para el inmunodiagnóstico de la neurocisticercosis. Palabras clave: Catepsina L; Taenia solium; Interacciones huésped-parásitos; Pruebas inmunológicas; Neurocisticercosis (fuente: DeCS BIREME) CATHEPSIN L CYSTEINE PROTEASE FROM Taenia solium: ITS BIOLOGICAL ROLE IN THE INFECTION AND POTENTIAL USE FOR THE IMMUNODIAGNOSIS OF NEUROCYSTICERCOSIS ABSTRACTTaenia solium is a plane helminth responsible for taeniasis and human cysticercosis, the latter being the result of the consumption of infective eggs. Cysticerci can develop in different human tissues, often in the central nervous system, causing neurocysticercosis (NCC). For the diagnosis of NCC, an adequate interpretation of clinical data, neuroimaging results and serological tests are required. However, serological tests could be improved by developing candidate antigens able to increase their sensibility and specificity. In the last years, a series of surface and secretory proteins of T. solium essential for the parasite-host interaction have been described. One of these families is cathepsin L cysteine proteases, which have a predominant role in the development and survival of the parasite. They take part in the tissue invasion, immune response evasion, excystation and encystment of cysticercus. They are considered potential antigens for the immunodiagnosis of neurocysticercosis. Key words: Cathepsin L; Taenia solium; Host-parasite interactions; Immunologic tests; Neurocysticercosis (source: MeSH NLM). Rev Peru Med Exp Salud Publica INTRODUCCIÓNTaenia solium pertenece a la familia Taeniidae, de la clase Céstoda, del filum Platyhelminthes, cuyo estadio adulto causa la teniosis, y su estadio larvario (cisticerco o metacéstodo) causa la cisticercosis (1) . La teniosis no produce sintomatología grave; por el contrario, la cisticercosis del sistema nervioso central, denominada neurocisticercosis (NCC), se presenta con sintomatología diversa, pudiendo cursar con convulsiones, mareos, dolor de cabez...
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