{"id":1084,"date":"2015-11-19T17:41:11","date_gmt":"2015-11-19T23:41:11","guid":{"rendered":"http:\/\/otech.uaeh.edu.mx\/noti\/?p=1084"},"modified":"2015-11-19T17:41:11","modified_gmt":"2015-11-19T23:41:11","slug":"disenan-nanoparticulas-que-se-unen-directamente-a-celulas-tumorales-sin-danar-a-las-sanas","status":"publish","type":"post","link":"https:\/\/otech.uaeh.edu.mx\/noti\/nanotecnologia\/disenan-nanoparticulas-que-se-unen-directamente-a-celulas-tumorales-sin-danar-a-las-sanas\/","title":{"rendered":"Dise\u00f1an nanopart\u00edculas que se unen directamente a c\u00e9lulas tumorales sin da\u00f1ar a las sanas"},"content":{"rendered":"<p>Miden entre 20 y 70 millon\u00e9simas partes de un metro y son esferas vac\u00edas formadas por prote\u00ednas, en las cuales se introduce hasta 110 mol\u00e9culas de la enzima activadora.<\/p>\n<p>&nbsp;<\/p>\n<p>Con el fin de aminorar los efectos secundarios y hacer m\u00e1s eficiente la quimioterapia como tratamiento contra el c\u00e1ncer,\u00a0investigadores del Centro de Nanociencias y Nanotecnolog\u00eda(CNyN) de la Universidad Nacional Aut\u00f3noma de M\u00e9xico (UNAM)\u00a0dise\u00f1an y producen nanopart\u00edculas biocatal\u00edticas que, por medio de enzimas, hacen que el f\u00e1rmaco que se administra para contrarrestar las c\u00e9lulas tumorales sea m\u00e1s eficaz.<\/p>\n<p>El doctor en ciencias biol\u00f3gicas, Rafael V\u00e1zquez Duhalt, y jefe del grupo de Bionanotecnolog\u00eda del CNyN, ubicado en Ensenada, Baja California, detall\u00f3 que la mayor\u00eda de los medicamentos usados en quimioterapia se administran como prof\u00e1rmacos; es decir, que no son t\u00f3xicos y se activan en todo el cuerpo y no directamente en el tumor, causando da\u00f1o a tejidos sanos.<\/p>\n<p>La activaci\u00f3n de los prof\u00e1rmacos se realiza a trav\u00e9s de prote\u00ednas catal\u00edticas llamadas Citocromo P450. \u201cPor ello, nuestra nanopart\u00edcula lo transporta directamente al tumor y no al resto del cuerpo, haciendo que la actividad del Citocromo aumente en las c\u00e9lulas tumorales y que el tratamiento sea m\u00e1s eficiente\u201c.<\/p>\n<p>Las nanopart\u00edculas miden entre 20 y 70 nan\u00f3metros y \u201cson esferas vac\u00edas formadas por prote\u00ednas, en las cuales podemos introducir hasta 110 mol\u00e9culas de la enzima activadora, estas las cubrimos con un pol\u00edmero biocompatible que evita las reacciones inmunes, y finalmente en la superficie se introducen mol\u00e9culas que son reconocidas solo por las c\u00e9lulas del tumor\u201c.<\/p>\n<p>La ventaja es que al administrar las nanopart\u00edculas cerca del sitio canceroso, estas se unir\u00e1n directamente s\u00f3lo a c\u00e9lulas tumorales, lo que ayudar\u00e1 a disminuir las dosis de medicamentos y, por ende, los efectos secundarios.<\/p>\n<p>Tras seis a\u00f1os de investigaci\u00f3n y con el objetivo de integrar las propiedades de los sistemas biol\u00f3gicos con las de los materiales nanoestructurados, el grupo de especialistas del doctor Rafael V\u00e1zquez Duhalt, trabaja con c\u00e1psides de virus por ser compatibles con el organismo y despu\u00e9s de una modificaci\u00f3n no presentan reacci\u00f3n inmunol\u00f3gica adversa.<\/p>\n<p>Con el apoyo de la Coordinaci\u00f3n de Innovaci\u00f3n y Desarrollo (CID) de la UNAM para el otorgamiento de la patente, la investigaci\u00f3n est\u00e1 en espera de la misma mientras se concluyen los estudios para poder aplicarse a pacientes. La tecnolog\u00eda est\u00e1 en fase inicial y de prueba del concepto, habr\u00e1 que esperar varios a\u00f1os todav\u00eda para que un producto comercial sea autorizado y comercializado.<\/p>\n<p>El desarrollo de nanopart\u00edculas biocatal\u00edticas no solo podr\u00edan ser eficaces en el tratamiento de c\u00e1ncer, existen diversas enfermedades originadas por deficiencia enzim\u00e1tica en el cuerpo como las hep\u00e1ticas que causan leucemia linfoc\u00edtica aguda, el albinismo, entre otras.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Miden entre 20 y 70 millon\u00e9simas partes de un metro y son esferas vac\u00edas formadas por prote\u00ednas, en las cuales se introduce hasta 110 mol\u00e9culas de la enzima activadora. &nbsp; Con el fin de aminorar los efectos secundarios y hacer m\u00e1s eficiente la quimioterapia como tratamiento contra el c\u00e1ncer,\u00a0investigadores del Centro de Nanociencias y Nanotecnolog\u00eda(CNyN) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1085,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[170],"tags":[],"class_list":["post-1084","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nanotecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Dise\u00f1an nanopart\u00edculas que se unen directamente a c\u00e9lulas tumorales sin da\u00f1ar a las sanas<\/title>\n<meta name=\"description\" content=\"Miden entre 20 y 70 millon\u00e9simas partes de un metro y son esferas vac\u00edas formadas por prote\u00ednas, en las cuales se introduce hasta 110 mol\u00e9culas\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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