{"id":9184,"date":"2026-10-09T21:34:33","date_gmt":"2026-10-09T20:34:33","guid":{"rendered":"https:\/\/wheat-quail-856400.hostingersite.com\/?p=9184"},"modified":"2026-10-27T10:26:37","modified_gmt":"2026-10-27T09:26:37","slug":"why-switch-to-serum-free-cho-medium-for-mab-production","status":"publish","type":"post","link":"https:\/\/seamlessbio.de\/de\/why-switch-to-serum-free-cho-medium-for-mab-production\/","title":{"rendered":"Warum auf serumfreies CHO-Medium f\u00fcr die mAb-Produktion umsteigen?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"9184\" class=\"elementor elementor-9184\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-4a1ad7bd e-flex e-con-boxed e-con e-parent\" data-id=\"4a1ad7bd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-13c9a17e elementor-widget elementor-widget-text-editor\" data-id=\"13c9a17e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t\n<p class=\"wp-block-paragraph\">F\u00f6tales K\u00e4lberserum ist seit Jahrzehnten der Standardzusatz in der CHO-Zellkultur. Es funktioniert \u2013 doch 2026 reicht \u201ees funktioniert\u201c f\u00fcr Hersteller monoklonaler Antik\u00f6rper, Biosimilars und rekombinanter Proteine nicht mehr aus. Regulatorischer Druck, Chargenvariabilit\u00e4t und die Kosten der Chargenreservierung erzwingen ein Umdenken.<\/p>\n<!-- BUY BOX (SEO: links to buy pages) -->\n<div class=\"sb-buy-box\" style=\"border:1px solid #cfe9e6;background:#f4fbfa;border-radius:12px;padding:22px 26px;margin:28px auto;max-width:1200px;box-sizing:border-box\">\n<h2 style=\"font-size:22px;line-height:1.3;margin:0 0 6px\">Serumfreie Zellkulturmedien ab EU-Lager kaufen<\/h2>\n<p style=\"margin:0 0 14px\">Angebot oder kostenloses Testmuster anfragen \u2013 keine Mindestbestellmenge, Angebot innerhalb von 48 Stunden.<\/p>\n<ul style=\"margin:0;padding-left:20px;columns:2 300px;column-gap:32px\">\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/simplacex-serumfreies-medium-hek293t\/\">SimplaceX \u2013 serumfreies HEK293T-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/simplacecdx-chemisch-definiertes-medium-hek293t\/\">SimplaceCDX \u2013 chemisch definiertes HEK293T-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/naivacore-naives-ipsc-medium-hensm\/\">NaivaCore \u2013 naives iPSC-Medium (HENSM)<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/serumfreies-medium-cho\/\">Serumfreie CHO-Zellkulturmedien<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/cellimax-metacho-cd-cho-basalmedium\/\">CelliMax\u00ae MetaCHO &amp; Versa \u2013 CHO-Basalmedien<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/produkt\/cellimax-cho-fga-feedmedium\/\">CelliMax\u00ae CHO-Feeds \u2013 FGa, FGa plus, FGb<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/serumfreies-msc-medium-gmp\/\">Serumfreies MSC-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/serumfreies-ipsc-medium-gmp\/\">Serumfreies iPSC- &amp; hESC-Medium<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/anwendungen\/organoid-3d-cell-culture\/\">OrganoMedium \u2013 Medium f\u00fcr die Organoid-Expansion<\/a><\/li>\n<li style=\"margin:0 0 6px\"><a href=\"https:\/\/seamlessbio.de\/de\/massgeschneiderte-zellkulturmedien\/\">Ma\u00dfgeschneiderte Zellkulturmedien \u2013 individuelle Formulierung<\/a><\/li>\n<\/ul>\n<p style=\"margin:14px 0 0\"><a href=\"https:\/\/seamlessbio.de\/de\/request-quote\/\" style=\"font-weight:600\">Angebot anfordern \u2192<\/a><\/p>\n<\/div>\n<!-- \/BUY BOX -->\n\n\n\n\n<p class=\"wp-block-paragraph\">Ein praktischer Blick darauf, warum serumfreies CHO-Medium zum Standard in der professionellen Bioprozesstechnik geworden ist und was der Umstieg tats\u00e4chlich bedeutet.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Das Grundproblem von FKS in der CHO-Kultur<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">FKS ist biologisch komplex und schlecht definiert. Jede Charge ist anders. Zytokinspiegel, Wachstumsfaktoren, Lipidgehalt \u2013 nichts davon ist standardisiert. F\u00fcr die mAb-Produktion bedeutet das:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Chargen-zu-Chargen-Schwankungen<\/strong> die Titer, Glykosylierungsprofile und Produktqualit\u00e4t beeinflusst<\/li>\n\n\n\n<li><strong>Regulatorischer Aufwand<\/strong>: Jede neue Charge muss vor dem Einsatz in der GMP-Herstellung validiert werden<\/li>\n\n\n\n<li><strong>Versorgungsrisiko<\/strong>: Die Verf\u00fcgbarkeit von FKS ist deutlich knapper geworden; 2025 und 2026 wurden durchgehend Engp\u00e4sse gemeldet<\/li>\n\n\n\n<li><strong>TSE\/BSE-Bedenken<\/strong>: Bestandteile tierischen Ursprungs erfordern nach EU- und FDA-Leitlinien zus\u00e4tzliche Dokumentation<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Keines dieser Probleme verschwindet durch sorgf\u00e4ltige Chargenpr\u00fcfung. Sie sind strukturell bedingt, solange ein undefinierter Zusatz tierischen Ursprungs verwendet wird.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Was serumfreies CHO-Medium tats\u00e4chlich l\u00f6st<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ein chemisch definiertes, serumfreies CHO-Medium beseitigt die Variable. Jede Komponente ist in bekannter Konzentration identifiziert. Das Ergebnis:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Gleichbleibende Leistung<\/strong> von Charge zu Charge \u2013 entscheidend f\u00fcr GMP-Prozesse<\/li>\n\n\n\n<li><strong>Keine Chargenpr\u00fcfung<\/strong> f\u00fcr das Medium selbst erforderlich<\/li>\n\n\n\n<li><strong>Frei von tierischen Bestandteilen (AOF)<\/strong>: vereinfacht beh\u00f6rdliche Einreichungen nach EMA- und FDA-Leitlinien<\/li>\n\n\n\n<li><strong>Proteinfreie Option<\/strong>: entfernt Albumin und Transferrin vollst\u00e4ndig aus der Formulierung und vereinfacht so die Aufreinigung<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">F\u00fcr Fed-Batch- und Perfusionsprozesse erm\u00f6glicht ein gut formuliertes serumfreies Medium zudem h\u00f6here lebende Zelldichten als FKS-haltige Medien \u2013 in optimierten Suspensionsprozessen oft \u00fcber 20\u201330 \u00d7 10\u2076 Zellen\/ml.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">H\u00e4ufige Bedenken beim Umstieg<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Sinkt mein Titer?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nicht, wenn die Adaptation richtig durchgef\u00fchrt wird. CHO-K1, CHO-S und CHO DG44 passen sich unter serumfreien Bedingungen gut an Suspensionskultur an. Der Prozess dauert 2\u20134 Wochen mit schrittweiser FKS-Reduktion. Der Titer stabilisiert oder verbessert sich in der Regel, sobald die Zellen vollst\u00e4ndig adaptiert sind.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Muss ich meinen Prozess revalidieren?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Ja \u2013 aber nur einmal, und danach ist die regulatorische Position deutlich st\u00e4rker. GMP-Hersteller verlangen zunehmend chemisch definierte Medien als Voraussetzung f\u00fcr die Prozessfreigabe.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Und GMP-Qualit\u00e4t?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Nicht alle serumfreien CHO-Medien werden unter GMP hergestellt. F\u00fcr die klinische Herstellung sind GMP-Produktion mit ISO-13485-Zertifizierung und vollst\u00e4ndige Chargendokumentation unverzichtbar. Kl\u00e4ren Sie das mit Ihrem Lieferanten, bevor Sie sich festlegen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">CHO-Zelllinien und Medienkompatibilit\u00e4t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Verschiedene CHO-Wirtszelllinien haben unterschiedliche N\u00e4hrstoffanforderungen:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Zelllinie<\/th><th>Hauptanwendung<\/th><th>Anmerkungen<\/th><\/tr><\/thead><tbody><tr><td>CHO-K1<\/td><td>mAb, Entwicklung stabiler Zelllinien<\/td><td>Am weitesten verbreitet; passt sich gut an SFM an<\/td><\/tr><tr><td>CHO-S<\/td><td>Produktion in Suspension<\/td><td>Bereits an Suspensionskultur adaptiert<\/td><\/tr><tr><td>CHO DG44<\/td><td>DHFR-basierte Genamplifikation<\/td><td>Ben\u00f6tigt nukleosidfreie Formulierung<\/td><\/tr><tr><td>CHO-DHFR\u207b<\/td><td>Stabile Hochexpressionslinien<\/td><td>Kompatibel mit MTX-Selektion<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ein serumfreies Medium f\u00fcr CHO-K1 in Suspension ist ohne Nukleosidzusatz f\u00fcr CHO DG44 m\u00f6glicherweise nicht optimal. Pr\u00fcfen Sie die Kompatibilit\u00e4t mit Ihrer Wirtslinie immer vor dem Scale-up.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Fazit<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Der Umstieg von FKS auf serumfreies CHO-Medium ist kein Risiko \u2013 er senkt das Risiko. Medienvariabilit\u00e4t, Lieferabh\u00e4ngigkeit, regulatorischer Mehraufwand: Diese Kosten entfallen mit serumfreien Formulierungen. F\u00fcr jeden Hersteller mit Ziel GMP-Produktion oder Zulassungsantrag lautet die Frage nicht mehr, ob, sondern wann umgestellt wird.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u2192 Entdecken Sie das Portfolio serumfreier CHO-Medien von SeamlessBio, einschlie\u00dflich chemisch definierter Optionen und GMP-Qualit\u00e4t: <a href=\"\/de\/serumfreies-medium-cho\/\">Serumfreie Medien f\u00fcr CHO-Zellen<\/a><\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Fetal bovine serum has been the default supplement in CHO cell culture for decades. It works \u2014 but in 2026, &#8220;it works&#8221; is no longer good enough for manufacturers of monoclonal antibodies, biosimilars and recombinant proteins. Regulatory pressure, batch variability and the cost of lot reservation are forcing a rethink. Buy serum-free cell culture media [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_templately_pack_id":"","_templately_imported_at":"","_templately_source":"","_templately_import_session_id":"","footnotes":""},"categories":[256],"tags":[],"class_list":["post-9184","post","type-post","status-publish","format-standard","hentry","category-serum-free"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Why Switch to Serum-Free CHO Medium for mAb Production? - SeamlessBio<\/title>\n<meta name=\"description\" content=\"Still using FBS for CHO cell culture? Here&#039;s why serum-free CHO medium outperforms in mAb, biosimilar and recombinant protein manufacturing \u2014 and how to switch without yield loss.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/seamlessbio.de\/de\/why-switch-to-serum-free-cho-medium-for-mab-production\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why Switch to Serum-Free CHO Medium for mAb Production? - SeamlessBio\" \/>\n<meta property=\"og:description\" content=\"Still using FBS for CHO cell culture? Here&#039;s why serum-free CHO medium outperforms in mAb, biosimilar and recombinant protein manufacturing \u2014 and how to switch without yield loss.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/seamlessbio.de\/de\/why-switch-to-serum-free-cho-medium-for-mab-production\/\" \/>\n<meta property=\"og:site_name\" content=\"SeamlessBio\" \/>\n<meta property=\"article:published_time\" content=\"2026-10-09T20:34:33+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-10-27T09:26:37+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/seamlessbio.de\/wp-content\/uploads\/2026\/04\/134428046.png\" \/>\n\t<meta property=\"og:image:width\" content=\"973\" \/>\n\t<meta property=\"og:image:height\" content=\"288\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\u00a0Minuten\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/\"},\"author\":{\"name\":\"admin\",\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/#\\\/schema\\\/person\\\/380871817f00a1e16eccbe7585a20c17\"},\"headline\":\"Why Switch to Serum-Free CHO Medium for mAb Production?\",\"datePublished\":\"2026-10-09T20:34:33+00:00\",\"dateModified\":\"2026-10-27T09:26:37+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/\"},\"wordCount\":622,\"publisher\":{\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/#organization\"},\"articleSection\":[\"Serum-free\"],\"inLanguage\":\"de\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/\",\"url\":\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/\",\"name\":\"Why Switch to Serum-Free CHO Medium for mAb Production? - SeamlessBio\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/#website\"},\"datePublished\":\"2026-10-09T20:34:33+00:00\",\"dateModified\":\"2026-10-27T09:26:37+00:00\",\"description\":\"Still using FBS for CHO cell culture? Here's why serum-free CHO medium outperforms in mAb, biosimilar and recombinant protein manufacturing \u2014 and how to switch without yield loss.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/#breadcrumb\"},\"inLanguage\":\"de\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/why-switch-to-serum-free-cho-medium-for-mab-production\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Start\",\"item\":\"https:\\\/\\\/seamlessbio.de\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Serum-free\",\"item\":\"https:\\\/\\\/seamlessbio.de\\\/category\\\/serum-free\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Why Switch to Serum-Free CHO Medium for mAb Production?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/seamlessbio.de\\\/#website\",\"url\":\"https:\\\/\\\/seamlessbio.de\\\/\",\"name\":\"SeamlessBio\",\"description\":\"Human serum, plasma and hPL, single-use bioprocessing bags, serum-free media, animal sera and FBS. 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