{"id":78076,"date":"2025-05-06T00:24:29","date_gmt":"2025-05-05T22:24:29","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=78076"},"modified":"2025-05-05T13:51:40","modified_gmt":"2025-05-05T11:51:40","slug":"fenbendazol-antiparazitikum-nabizejici-nadeji-v-lecbe-rakoviny","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2025\/05\/06\/fenbendazol-antiparazitikum-nabizejici-nadeji-v-lecbe-rakoviny\/","title":{"rendered":"Fenbendazol: Antiparazitikum nab\u00edzej\u00edc\u00ed nad\u011bji v l\u00e9\u010db\u011b rakoviny?"},"content":{"rendered":"<div id=\"fb-root\"><\/div>\n<p><strong>L\u00e9k p\u016fvodn\u011b vyvinut\u00fd pro od\u010derven\u00ed zv\u00ed\u0159at vyvol\u00e1v\u00e1 rozruch ve v\u00fdzkumu rakoviny: fenbendazol. Kazuistiky ukazuj\u00ed p\u016fsobiv\u00e9 remise u pacient\u016f s rakovinou u\u017e\u00edvaj\u00edc\u00edch tento levn\u00fd l\u00e9k. Ale jak fenbendazol funguje a je to skute\u010dn\u011b pr\u016flom? Analyzujeme v\u011bdeck\u00e9 pozad\u00ed titulk\u016f a v\u00fdzvy na cest\u011b k uzn\u00e1n\u00ed.<\/strong><\/p>\n<p>Fenbendazol (FBZ) je benzimidazol, kter\u00fd se ve veterin\u00e1rn\u00ed medic\u00edn\u011b pou\u017e\u00edv\u00e1 ji\u017e po cel\u00e1 desetilet\u00ed k l\u00e9\u010db\u011b parazit\u016f, jako jsou \u010dervi. Je levn\u00fd, dob\u0159e sn\u00e1\u0161en\u00fd a v mnoha zem\u00edch dostupn\u00fd bez l\u00e9ka\u0159sk\u00e9ho p\u0159edpisu. Jeho p\u0159\u00edbuzn\u00e9 l\u00e1tky, mebendazol a albendazol, se ji\u017e \u00fasp\u011b\u0161n\u011b pou\u017e\u00edvaj\u00ed p\u0159i lidsk\u00fdch parazit\u00e1rn\u00edch infekc\u00edch. Ale v posledn\u00edch letech se fenbendazol dostal do centra pozornosti v\u00fdzkumu rakoviny \u2013 ne kv\u016fli sv\u00fdm antiparazit\u00e1rn\u00edm \u00fa\u010dink\u016fm, ale kv\u016fli sv\u00e9 potenci\u00e1ln\u00ed schopnosti bojovat proti rakovinn\u00fdm bu\u0148k\u00e1m.<\/p>\n<h3 id=\"h-wie-wirkt-fenbendazol-gegen-krebs\" class=\"wp-block-heading\">Jak fenbendazol p\u016fsob\u00ed proti rakovin\u011b?<\/h3>\n<p>Kl\u00ed\u010d spo\u010d\u00edv\u00e1 v mikrotubulech, drobn\u00fdch struktur\u00e1ch v bu\u0148k\u00e1ch, kter\u00e9 jsou nezbytn\u00e9 pro bun\u011b\u010dn\u00e9 d\u011blen\u00ed. Fenbendazol destabilizuje tyto mikrotubuly, podobn\u011b jako chemoterapeutick\u00e1 \u010dinidla, jako jsou vinka alkaloidy nebo taxany. T\u00edm se blokuje bun\u011b\u010dn\u00e9 d\u011blen\u00ed, co\u017e postihuje zejm\u00e9na rakovinn\u00e9 bu\u0148ky, kter\u00e9 se rychle d\u011bl\u00ed. Studie ukazuj\u00ed dal\u0161\u00ed \u00fa\u010dinky:<\/p>\n<ul>\n<li>Indukce apopt\u00f3zy: FBZ podporuje programov\u011b odum\u00edraj\u00edc\u00ed bu\u0148ky v rakovinn\u00fdch bu\u0148k\u00e1ch.<\/li>\n<li>Inhibice sign\u00e1ln\u00edch drah: Blokuje onkogenn\u00ed sign\u00e1ln\u00ed dr\u00e1hy, jako je STAT3, a aktivuje dr\u00e1hy potla\u010duj\u00edc\u00ed n\u00e1dor, jako je p53.<\/li>\n<li>Antiangiogeneze: FBZ sni\u017euje tvorbu nov\u00fdch krevn\u00edch c\u00e9v, kter\u00e9 n\u00e1dory pot\u0159ebuj\u00ed pro sv\u016fj r\u016fst.<\/li>\n<\/ul>\n<p>Preklinick\u00e9 studie, jako nap\u0159\u00edklad ty od Dogra et al. (2018) ve Scientific Reports potvrzuj\u00ed tyto mechanismy v bun\u011b\u010dn\u00fdch lini\u00edch a zv\u00ed\u0159ec\u00edch modelech. Vylep\u0161en\u00e1 nano-formulace (FBZ-Nano) vykazovala je\u0161t\u011b siln\u011bj\u0161\u00ed \u00fa\u010dinky d\u00edky lep\u0161\u00ed biologick\u00e9 dostupnosti, kter\u00e1 p\u0159ekon\u00e1v\u00e1 n\u00edzkou rozpustnost ve vod\u011b standardn\u00edho FBZ.<\/p>\n<h3 id=\"h-beeindruckende-fallberichte\" class=\"wp-block-heading\">P\u016fsobiv\u00e9 zpr\u00e1vy o p\u0159\u00edpadech<\/h3>\n<p>Pov\u011bdom\u00ed o fenbendazolu rostlo d\u00edky neofici\u00e1ln\u00edm zpr\u00e1v\u00e1m a kazuistik\u00e1m. Studie Chianga a kol. (2021) popisuje t\u0159i pacienty s urogenit\u00e1ln\u00edm karcinomem, u kter\u00fdch do\u0161lo po u\u017e\u00edv\u00e1n\u00ed FBZ k \u00fapln\u00e9 remisi:<\/p>\n<ol>\n<li>Karcinom ledvinov\u00fdch bun\u011bk: 63let\u00fd mu\u017e s metastatick\u00fdm karcinomem, kter\u00fd nereagoval na standardn\u00ed l\u00e9\u010dbu, u\u017e\u00edval FBZ (1 g, 3kr\u00e1t t\u00fddn\u011b) a po 10 m\u011bs\u00edc\u00edch do\u0161lo k t\u00e9m\u011b\u0159 \u00fapln\u00e9 regresi n\u00e1doru bez vedlej\u0161\u00edch \u00fa\u010dink\u016f.<\/li>\n<li>Karcinom mo\u010dov\u00e9 trubice: 72let\u00fd mu\u017e s metast\u00e1zami v plic\u00edch, lymfatick\u00fdch uzlin\u00e1ch a mozku kombinoval FBZ s vitam\u00edny a CBD olejem. Po 9 m\u011bs\u00edc\u00edch rezistentn\u00ed n\u00e1dory zcela zmizely.<\/li>\n<li>Rakovina mo\u010dov\u00e9ho m\u011bch\u00fd\u0159e: 63let\u00e1 \u017eena s invazivn\u00edm n\u00e1dorem u\u017e\u00edvala FBZ soub\u011b\u017en\u011b s chemoterapi\u00ed. Po 6 cyklech n\u00e1dor zmizel a \u017eena je st\u00e1le bez onemocn\u011bn\u00ed.<\/li>\n<\/ol>\n<p>Dal\u0161\u00ed kazuistika od Verweije a kol. (2022) popisuje pacienta s metastatick\u00fdm kolorekt\u00e1ln\u00edm karcinomem, u kter\u00e9ho do\u0161lo k \u010d\u00e1ste\u010dn\u00e9 remisi po u\u017e\u00edv\u00e1n\u00ed FBZ (1 g denn\u011b, 3 dny u\u017e\u00edv\u00e1n\u00ed\/4 dny bez u\u017e\u00edv\u00e1n\u00ed). FBZ zde v\u0161ak byla kombinov\u00e1na s jinou terapi\u00ed, co\u017e interpretaci zt\u011b\u017euje.<\/p>\n<h3 id=\"h-warum-ist-fenbendazol-so-spannend\" class=\"wp-block-heading\">Pro\u010d je fenbendazol tak vzru\u0161uj\u00edc\u00ed?<\/h3>\n<p>Kazuistiky jsou pozoruhodn\u00e9, proto\u017ee pacienti m\u011bli pokro\u010dil\u00e9 n\u00e1dory, kter\u00e9 ji\u017e nereagovaly na konven\u010dn\u00ed terapie. FBZ nab\u00edz\u00ed n\u011bkolik v\u00fdhod: Je n\u00e1kladov\u011b efektivn\u00ed, zejm\u00e9na ve srovn\u00e1n\u00ed s \u201emodern\u00edmi terapiemi rakoviny\u201c. Obecn\u011b je dob\u0159e sn\u00e1\u0161en. V kazuistik\u00e1ch nebyly hl\u00e1\u0161eny \u017e\u00e1dn\u00e9 vedlej\u0161\u00ed \u00fa\u010dinky, co\u017e FBZ odli\u0161uje od mnoha chemoterapeutik. A: L\u00e9k je snadno dostupn\u00fd.<\/p>\n<h3 id=\"h-herausforderungen-und-offene-fragen\" class=\"wp-block-heading\">V\u00fdzvy a otev\u0159en\u00e9 ot\u00e1zky<\/h3>\n<p>Navzdory slibn\u00fdm zpr\u00e1v\u00e1m existuj\u00ed omezen\u00ed:<\/p>\n<ul>\n<li>Nedostatek klinick\u00fdch studi\u00ed: D\u016fkazy jsou zalo\u017eeny na kazuistik\u00e1ch a preklinick\u00fdch studi\u00edch. Chyb\u00ed randomizovan\u00e9 kontrolovan\u00e9 studie, kter\u00e9 by potvrdily \u00fa\u010dinnost a bezpe\u010dnost u lid\u00ed.<\/li>\n<li>Nejasn\u00e9 d\u00e1vkov\u00e1n\u00ed: Optim\u00e1ln\u00ed d\u00e1vka pro \u010dlov\u011bka nen\u00ed stanovena. V kazuistik\u00e1ch se d\u00e1vkovac\u00ed re\u017eimy li\u0161ily (nap\u0159. 1 g 3kr\u00e1t t\u00fddn\u011b vs. denn\u011b).<\/li>\n<li>Biologick\u00e1 dostupnost: N\u00edzk\u00e1 rozpustnost FBZ m\u016f\u017ee omezit jeho \u00fa\u010dinnost, a\u010dkoli nov\u00e9 formulace, jako je FBZ-Nano, vykazuj\u00ed slibn\u00e9 \u00fa\u010dinky.<\/li>\n<li>Kombinovan\u00e9 terapie: V n\u011bkter\u00fdch p\u0159\u00edpadech byl FBZ kombinov\u00e1n s jin\u00fdmi l\u00e1tkami (nap\u0159. chemoterapi\u00ed, vitam\u00edny), tak\u017ee nen\u00ed jasn\u00e9, kter\u00fd faktor zp\u016fsobil remisi.<\/li>\n<li>Samol\u00e9\u010dba: Vzhledem k tomu, \u017ee FBZ je dostupn\u00fd jako veterin\u00e1rn\u00ed l\u00e9\u010div\u00fd p\u0159\u00edpravek, existuje riziko, \u017ee jej pacienti budou u\u017e\u00edvat bez l\u00e9ka\u0159sk\u00e9ho dohledu, co\u017e s sebou nese ur\u010dit\u00e1 rizika.<\/li>\n<\/ul>\n<h3 id=\"h-was-sagt-die-wissenschaft\" class=\"wp-block-heading\">Co \u0159\u00edk\u00e1 v\u011bda?<\/h3>\n<p>Odborn\u00edci jako Dr. John Campbell volaj\u00ed po nal\u00e9hav\u00e9m vy\u0161et\u0159ov\u00e1n\u00ed FBZ ze strany regula\u010dn\u00edch org\u00e1n\u016f pro l\u00e9\u010diva, proto\u017ee kazuistiky jsou p\u016fsobiv\u00e9 a l\u00e9k se zd\u00e1 b\u00fdt bezpe\u010dn\u00fd. V\u011bda v\u0161ak z\u016fst\u00e1v\u00e1 opatrn\u00e1: bez rozs\u00e1hl\u00fdch studi\u00ed z\u016fst\u00e1v\u00e1 nejasn\u00e9, zda je FBZ \u201ez\u00e1zra\u010dn\u00fdm l\u00e9kem\u201c, nebo zda funguje pouze ve specifick\u00fdch p\u0159\u00edpadech. P\u0159edklinick\u00e9 \u00fadaje od Dogra et al. (2018) nazna\u010duj\u00ed, \u017ee FBZ m\u016f\u017ee p\u016fsobit synergicky s jin\u00fdmi chemoterapeutiky, co\u017e \u010din\u00ed budouc\u00ed kombinovan\u00e9 terapie zaj\u00edmav\u00fdmi.<\/p>\n<h3 id=\"h-wie-geht-es-weiter\" class=\"wp-block-heading\">Co se stane d\u00e1l?<\/h3>\n<p>Kazuistiky a preklinick\u00e9 \u00fadaje jsou slibn\u00e9, ale cesta k uzn\u00e1n\u00ed jako protin\u00e1dorov\u00e9 terapie je dlouh\u00e1. Pro objasn\u011bn\u00ed \u00fa\u010dinnosti, optim\u00e1ln\u00edho d\u00e1vkov\u00e1n\u00ed a bezpe\u010dnosti jsou nal\u00e9hav\u011b nutn\u00e9 dal\u0161\u00ed klinick\u00e9 studie. Do t\u00e9 doby by pacienti m\u011bli b\u00fdt opatrn\u00ed a u\u017e\u00edvat FBZ pouze pod l\u00e9ka\u0159sk\u00fdm dohledem. Nicm\u00e9n\u011b antiparazitikum, kter\u00e9 napad\u00e1 rakovinn\u00e9 bu\u0148ky, je fascinuj\u00edc\u00edm p\u0159\u00edb\u011bhem, kter\u00fd by mohl obohatit v\u00fdzkum rakoviny.<\/p>\n<p>A to p\u0159ipom\u00edn\u00e1 ivermektin, dal\u0161\u00ed antiparazitikum pou\u017e\u00edvan\u00e9 ve veterin\u00e1rn\u00ed i hum\u00e1nn\u00ed medic\u00edn\u011b, o kter\u00e9m se \u0159\u00edk\u00e1, \u017ee m\u00e1 dobr\u00e9 vlastnosti v boji proti n\u011bkter\u00fdm typ\u016fm rakoviny. Fenbendazol m\u00e1 potenci\u00e1l zp\u016fsobit revoluci v l\u00e9\u010db\u011b rakoviny \u2013 pokud v\u011bda dok\u00e1\u017ee potvrdit neofici\u00e1ln\u00ed \u00fasp\u011bchy. Zb\u00fdv\u00e1 doufat, \u017ee stejn\u011b jako u jin\u00fdch levn\u00fdch l\u00e9k\u016f nezv\u00edt\u011bz\u00ed chamtivost farmaceutick\u00e9ho pr\u016fmyslu po zisku a odpov\u00eddaj\u00edc\u00ed dokumenty nezmiz\u00ed v n\u011bjak\u00e9m \u0161upl\u00edku.<\/p>\n<p><em>Tento \u010dl\u00e1nek slou\u017e\u00ed pouze pro informa\u010dn\u00ed \u00fa\u010dely a nenahrazuje l\u00e9ka\u0159skou pomoc. Pokud jste nemocn\u00ed, pora\u010fte se pros\u00edm se sv\u00fdm l\u00e9ka\u0159em nebo l\u00e9k\u00e1rn\u00edkem, ne\u017e podniknete jak\u00e9koli kroky. Popsan\u00e9 l\u00e1tky a terapie by m\u011bly b\u00fdt pou\u017e\u00edv\u00e1ny pouze pod l\u00e9ka\u0159sk\u00fdm dohledem.<\/em><\/p>\n<h3 id=\"h-quellen\" class=\"wp-block-heading\">Zdroje<\/h3>\n<ul>\n<li>Chiang a kol. (2021) \u2013 \u201eFenbendazol zesiluje protin\u00e1dorov\u00fd \u00fa\u010dinek: S\u00e9rie p\u0159\u00edpad\u016f\u201c<br \/>\nOdkaz:\u00a0<a href=\"https:\/\/www.scitechnol.com\/peer-review\/fenbendazole-enhancing-antitumor-effect-a-case-series-2Kms.php?article_id=14307\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.scitechnol.com\/peer-review\/fenbendazole-enhancing-antitumor-effect-a-case-series-2Kms.php?article_id=14307<\/a><\/li>\n<li>Verweij a kol. (2022) \u2013 \u201eOp\u011btovn\u00e9 pou\u017eit\u00ed l\u00e9\u010div v onkologii (ReDO) \u2013 Fenbendazol jako protin\u00e1dorov\u00e9 \u010dinidlo: Kazuistika a mechanistick\u00e9 poznatky\u201c<br \/>\nOdkaz:\u00a0<a href=\"https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC9437363\/\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/pmc.ncbi.nlm.nih.gov\/articles\/PMC9437363\/<\/a><\/li>\n<li>Dogra a kol. (2018) \u2013 \u201eFenbendazol p\u016fsob\u00ed jako st\u0159edn\u011b siln\u00e9 destabilizuj\u00edc\u00ed \u010dinidlo mikrotubul\u016f a zp\u016fsobuje smrt rakovinn\u00fdch bun\u011bk modulac\u00ed v\u00edce bun\u011b\u010dn\u00fdch drah\u201c<br \/>\nOdkaz:\u00a0<a href=\"https:\/\/www.nature.com\/articles\/s41598-018-30158-6\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/www.nature.com\/articles\/s41598-018-30158-6<\/a><\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>L\u00e9k p\u016fvodn\u011b vyvinut\u00fd pro od\u010derven\u00ed zv\u00ed\u0159at vyvol\u00e1v\u00e1 rozruch ve v\u00fdzkumu rakoviny: fenbendazol. Kazuistiky ukazuj\u00ed p\u016fsobiv\u00e9&#8230;<\/p>\n","protected":false},"author":2,"featured_media":78077,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[9058,1020,1366,21],"_links":{"self":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/78076"}],"collection":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/comments?post=78076"}],"version-history":[{"count":0,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/posts\/78076\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media\/78077"}],"wp:attachment":[{"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/media?parent=78076"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/categories?post=78076"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.infokuryr.cz\/n\/wp-json\/wp\/v2\/tags?post=78076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}