{"id":1175,"date":"2026-07-19T08:00:00","date_gmt":"2026-07-19T06:00:00","guid":{"rendered":"https:\/\/infoimasd.com\/?p=1175"},"modified":"2026-07-17T13:54:02","modified_gmt":"2026-07-17T11:54:02","slug":"csic-interferon-alzheimer-mujeres-neuroinflamacion","status":"publish","type":"post","link":"https:\/\/infoimasd.com\/index.php\/2026\/07\/19\/csic-interferon-alzheimer-mujeres-neuroinflamacion\/","title":{"rendered":"Un estudio del CSIC identifica un mecanismo inmunitario que podr\u00eda explicar por qu\u00e9 el alzh\u00e9imer afecta m\u00e1s a las mujeres"},"content":{"rendered":"\n<p class=\"has-medium-font-size wp-block-paragraph\"><strong>Un equipo del Instituto de Neurociencias (IN-CSIC-UMH) ha identificado un mecanismo del sistema inmunitario que podr\u00eda ayudar a explicar por qu\u00e9 la enfermedad de Alzheimer afecta aproximadamente al doble de mujeres que de hombres<\/strong>. <a href=\"https:\/\/link.springer.com\/article\/10.1186\/s12974-026-03840-0\" data-type=\"link\" data-id=\"https:\/\/link.springer.com\/article\/10.1186\/s12974-026-03840-0\">El estudio, publicado en la revista Journal of Neuroinflammation,<\/a> revela que la denominada se\u00f1alizaci\u00f3n por interfer\u00f3n presenta una activaci\u00f3n mucho m\u00e1s intensa en mujeres con alzh\u00e9imer, favoreciendo procesos inflamatorios asociados a la neurodegeneraci\u00f3n.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">La investigaci\u00f3n, liderada por Jos\u00e9 P. L\u00f3pez-Atalaya, investigador del <a href=\"https:\/\/infoimasd.com\/index.php\/2026\/07\/16\/csic-cortistatina-potencial-terapeutico-ictus\/\" data-type=\"post\" data-id=\"1157\">Consejo Superior de Investigaciones Cient\u00edficas (CSIC)<\/a>, abre <strong>nuevas perspectivas para el desarrollo de tratamientos dirigidos a modular esta respuesta inmunitaria y reducir la progresi\u00f3n de la enfermedad<\/strong>. Aunque la mayor esperanza de vida femenina explica parte de la mayor incidencia del alzh\u00e9imer, cada vez existen m\u00e1s evidencias de que tambi\u00e9n intervienen factores biol\u00f3gicos. La se\u00f1alizaci\u00f3n por interfer\u00f3n constituye uno de los principales mecanismos de defensa del organismo frente a las infecciones v\u00edricas. Sin embargo, cuando permanece activada de forma prolongada puede favorecer procesos inflamatorios perjudiciales para el cerebro.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">El equipo del Instituto de Neurociencias observ\u00f3 que <strong>esta v\u00eda inmunitaria se encuentra significativamente m\u00e1s activada en mujeres con enfermedad de Alzheimer que en hombres<\/strong>, incluso cuando ambos presentan un grado similar de afectaci\u00f3n cerebral. <em>\u00abSab\u00edamos que las mujeres desarrollan con mayor frecuencia la enfermedad, pero desconoc\u00edamos qu\u00e9 mecanismos biol\u00f3gicos pod\u00edan explicar esta diferencia. Nuestros resultados muestran que la respuesta por interfer\u00f3n est\u00e1 mucho m\u00e1s activada en las mujeres con alzh\u00e9imer y que esta activaci\u00f3n excesiva puede contribuir tanto a las alteraciones cerebrales como al deterioro de la funci\u00f3n cognitiva\u00bb<\/em>, explica Jos\u00e9 P. L\u00f3pez-Atalaya.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">El papel de la microgl\u00eda en la neuroinflamaci\u00f3n<\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Para llegar a estas conclusiones, los investigadores analizaron tejido cerebral post mortem de pacientes con alzh\u00e9imer y combinaron esos datos con modelos animales de la enfermedad y t\u00e9cnicas de secuenciaci\u00f3n de ARN de c\u00e9lula \u00fanica. <strong>El trabajo permiti\u00f3 identificar a la microgl\u00eda, las principales c\u00e9lulas inmunitarias del cerebro, como uno de los focos donde esta respuesta por interfer\u00f3n se activa con mayor intensidad.<\/strong> Aunque la microgl\u00eda desempe\u00f1a una funci\u00f3n esencial en la protecci\u00f3n del sistema nervioso, su activaci\u00f3n prolongada puede desencadenar procesos inflamatorios que da\u00f1an las neuronas y aceleran la progresi\u00f3n de enfermedades neurodegenerativas. Seg\u00fan Ver\u00f3nica L\u00f3pez L\u00f3pez, primera autora del estudio, los resultados refuerzan la evidencia de que la neuroinflamaci\u00f3n desempe\u00f1a un papel central en la evoluci\u00f3n del alzh\u00e9imer.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Una posible nueva estrategia terap\u00e9utica<\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Los investigadores tambi\u00e9n quisieron determinar si la activaci\u00f3n de esta v\u00eda inmunitaria era \u00fanicamente una consecuencia de la enfermedad o si contribu\u00eda directamente a su desarrollo. <strong>Los experimentos demostraron que activar la se\u00f1alizaci\u00f3n por interfer\u00f3n era suficiente para provocar inflamaci\u00f3n cerebral y alteraciones en los circuitos relacionados con la memoria.<\/strong> Adem\u00e1s, comprobaron que potenciar esta respuesta espec\u00edficamente en la microgl\u00eda agravaba tanto la neuroinflamaci\u00f3n como los procesos asociados a la neurodegeneraci\u00f3n.<\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Por el contrario, el bloqueo farmacol\u00f3gico de la prote\u00edna STING, fundamental para activar la se\u00f1alizaci\u00f3n por interfer\u00f3n, consigui\u00f3 reducir la inflamaci\u00f3n cerebral, disminuir las alteraciones neuropatol\u00f3gicas y mejorar el rendimiento en pruebas de memoria espacial en hembras de modelos experimentales de alzh\u00e9imer. <strong>Estos resultados sit\u00faan la v\u00eda del interfer\u00f3n como una posible diana terap\u00e9utica <\/strong>para futuras estrategias dirigidas a ralentizar la progresi\u00f3n de la enfermedad.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Un avance que deber\u00e1 confirmarse en pacientes<\/h3>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">Los autores subrayan que los hallazgos se han obtenido principalmente en modelos experimentales y que ser\u00e1n necesarios ensayos cl\u00ednicos para comprobar si este enfoque puede trasladarse a pacientes. No obstante, consideran que <strong>el trabajo aporta una nueva explicaci\u00f3n biol\u00f3gica sobre la mayor vulnerabilidad de las mujeres frente al alzh\u00e9imer y abre una l\u00ednea prometedora para desarrollar tratamientos capaces de modular la neuroinflamaci\u00f3n.<\/strong><\/p>\n\n\n\n<p class=\"has-medium-font-size wp-block-paragraph\">En la investigaci\u00f3n tambi\u00e9n participaron cient\u00edficos del <a href=\"https:\/\/infoimasd.com\/index.php\/2026\/07\/16\/csic-memoria-anual-2025-publicaciones-cientificas-innovacion\/\" data-type=\"post\" data-id=\"1151\">CSIC<\/a> en el Instituto de Neurociencias, la Universitat de Barcelona, la Universidad de Sevilla y el Instituto de Biomedicina de Sevilla (IBiS). El estudio ha contado con financiaci\u00f3n de la <a href=\"https:\/\/infoimasd.com\/index.php\/2026\/07\/16\/proyectos-generacion-conocimiento-2025-aei-record-presupuesto\/\" data-type=\"post\" data-id=\"1137\">Agencia Estatal de Investigaci\u00f3n<\/a>, el Ministerio de Ciencia, Innovaci\u00f3n y Universidades, el Programa <a href=\"https:\/\/infoimasd.com\/index.php\/2026\/07\/13\/centros-excelencia-severo-ochoa-maria-de-maeztu-2025\/\" data-type=\"post\" data-id=\"1079\">Severo Ochoa<\/a>, la Generalitat Valenciana, la Fundaci\u00f3n Tatiana P\u00e9rez de Guzm\u00e1n el Bueno, la Fundaci\u00f3n Ram\u00f3n Areces, la Fundaci\u00f3n \u00abla Caixa\u00bb y la Fundaci\u00f3n Pasqual Maragall.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La investigaci\u00f3n se\u00f1ala la se\u00f1alizaci\u00f3n por interfer\u00f3n como una posible diana terap\u00e9utica para reducir la neuroinflamaci\u00f3n y frenar la progresi\u00f3n de la enfermedad.<\/p>\n","protected":false},"author":1,"featured_media":1177,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[11],"tags":[397,179,469,471,460,470,472],"class_list":["post-1175","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-investigacion","tag-alzheimer","tag-csic","tag-instituto-de-neurociencias","tag-interferon","tag-neurociencia","tag-neuroinflamacion","tag-salud-mujeres"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - 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