{"id":3359,"date":"2026-09-01T21:25:45","date_gmt":"2026-09-01T20:25:45","guid":{"rendered":"https:\/\/wheat-quail-856400.hostingersite.com\/?p=3359"},"modified":"2026-11-12T18:51:03","modified_gmt":"2026-11-12T17:51:03","slug":"serum-free-medium-aav-production-complete-recipe","status":"publish","type":"post","link":"https:\/\/seamlessbio.de\/de\/serum-free-medium-aav-production-complete-recipe\/","title":{"rendered":"Serumfreies Medium f\u00fcr die AAV-Produktion"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"3359\" class=\"elementor elementor-3359\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-60e7357c e-flex e-con-boxed e-con e-parent\" data-id=\"60e7357c\" 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-2850f315 elementor-widget elementor-widget-text-editor\" data-id=\"2850f315\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<!--\nWORDPRESS BLOG POST\nSlug: serum-free-medium-aav-production-complete-recipe\nSEO Title: Serum-Free Medium for AAV Production \u2014 The Complete Component List | SeamlessBio\nMeta Description: The complete component list for serum-free HEK293T medium for AAV production \u2014 rHSA, OsrhTF, insulin, growth factors, and what each does. With practical transition protocol.\nFocus Keyword: serum-free medium AAV production HEK293T\nAdditional Keywords: rHSA AAV production medium, recombinant transferrin HEK293T serum-free, animal component-free AAV medium, serum-free HEK293 gene therapy\nCategory: Cell Culture \u00b7 AAV & Viral Vectors\nTags: AAV, HEK293T, FBS, gene therapy, viral vector, cell culture\n-->\n<style>\n.sb-bp{font-family:-apple-system,BlinkMacSystemFont,\"Segoe UI\",Roboto,sans-serif;max-width:780px;margin:0 auto;padding:0 0 60px;color:#202020;line-height:1.75}\n.sb-bp .lede{font-size:18px;font-weight:500;color:#3a4a50;border-left:4px solid #18b7b2;padding-left:20px;margin:0 0 32px;line-height:1.65}\n.sb-bp h2{font-size:24px;font-weight:800;margin:44px 0 14px;color:#111;padding-bottom:10px;border-bottom:2px solid #e2eceb}\n.sb-bp h3{font-size:18px;font-weight:700;margin:32px 0 10px;color:#18b7b2}\n.sb-bp p{margin:0 0 18px}\n.sb-bp ul,.sb-bp ol{margin:0 0 18px;padding-left:24px}\n.sb-bp li{margin-bottom:8px}\n.sb-bp table{width:100%;border-collapse:collapse;font-size:14px;margin:20px 0 28px;display:block;overflow-x:auto}\n.sb-bp th{background:#18b7b2;color:#fff;text-align:left;padding:10px 14px;font-weight:700;white-space:nowrap}\n.sb-bp td{padding:10px 14px;border-bottom:1px solid #e2eceb;vertical-align:top}\n.sb-bp tr:last-child td{border-bottom:none}\n.sb-bp td:first-child{font-weight:600;color:#111}\n.sb-bp a{color:#18b7b2;text-decoration:none;font-weight:600}\n.sb-bp a:hover{text-decoration:underline}\n.sb-bp strong{color:#111}\n.sb-bp .box{background:#f1faf9;border-left:4px solid #18b7b2;border-radius:0 12px 12px 0;padding:20px 24px;margin:28px 0}\n.sb-bp .cta-box{background:linear-gradient(135deg,#e4f6f5,#f4fbfb);border:1px solid rgba(24,183,178,.2);border-radius:16px;padding:28px;margin-top:44px;text-align:center}\n.sb-bp .cta-box h3{color:#111;margin:0 0 10px}\n.sb-bp .cta-box p{color:#5b6b71;margin:0 0 18px;font-size:15px}\n.sb-bp .cta-btns{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}\n.sb-bp .btn{display:inline-block;background:#18b7b2;color:#fff!important;padding:10px 22px;border-radius:8px;font-weight:700;font-size:14px;text-decoration:none!important}\n.sb-bp .btn-o{display:inline-block;border:2px solid #18b7b2;color:#18b7b2!important;padding:8px 22px;border-radius:8px;font-weight:700;font-size:14px;text-decoration:none!important}\n<\/style>\n<div class=\"sb-bp\">\n<p class=\"lede\">Der Umstieg der AAV-Produktion von serumhaltigem auf serumfreies Medium wird zunehmend durch regulatorischen Druck getrieben \u2013 besonders bei IND-erm\u00f6glichendem und klinischem AAV, wo tierische Bestandteile eine umfangreiche TSE\/BSE-Dokumentation erfordern. Dieser Beitrag liefert die vollst\u00e4ndige Komponentenliste, erkl\u00e4rt, was jede Komponente im FKS ersetzt, und bietet ein praktisches Umstellungsprotokoll.<\/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 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<h2>Warum serumfrei in der AAV-Produktion?<\/h2>\n<p>F\u00fcr AAV in Forschungsqualit\u00e4t liefert optimiertes Low-Endotoxin-FKS hervorragende Ergebnisse, und der Umstieg auf serumfrei bringt Aufwand ohne klaren Nutzen. F\u00fcr AAV in klinischer Qualit\u00e4t sieht die Rechnung anders aus:<\/p>\n<ul>\n  <li><strong>Regulatorischer Aufwand:<\/strong> FKS erfordert TSE\/BSE-Risikobewertung, Herkunftszertifizierung und chargenspezifische Dokumentation zu Fremdagenzien \u2013 gepr\u00fcft von FDA\/EMA bei jeder IND\/CTA-Einreichung<\/li>\n  <li><strong>Konsistenz von Charge zu Charge:<\/strong> Serumfreies, chemisch definiertes Medium schwankt in der Zusammensetzung nicht zwischen Chargen \u2013 FKS-bedingte Titerschwankungen entfallen<\/li>\n  <li><strong>Aufreinigung:<\/strong> Bovines Albumin aus FKS wird in vielen Aufreinigungsschritten mit dem AAV mitgef\u00fchrt und muss als prozessbedingte Verunreinigung dokumentiert werden<\/li>\n  <li><strong>GMP-Konformit\u00e4t:<\/strong> Tierkomponentenfreies (ACF) Medium vereinfacht die Risikobewertung der Rohstoffe und beseitigt ein wichtiges regulatorisches Thema in der kommerziellen AAV-Herstellung<\/li>\n<\/ul>\n\n<h2>Was FKS leistet \u2013 und was Sie ersetzen m\u00fcssen<\/h2>\n<p>FKS erf\u00fcllt in HEK293T-Medium sechs Schl\u00fcsselfunktionen. Jede muss in einer serumfreien Formulierung einzeln ersetzt werden:<\/p>\n\n<table>\n  <thead><tr><th>FKS-Funktion<\/th><th>Serumfreier Ersatz<\/th><th>Typische Konzentration<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>Tr\u00e4gerprotein (Transport von Lipiden, Wirkstoffen, Hormonen)<\/td><td>rHSA (rekombinantes humanes Serumalbumin)<\/td><td>1\u20132 g\/L<\/td><\/tr>\n    <tr><td>Eisenversorgung (\u00fcber den Transferrinrezeptor)<\/td><td>OsrhTF (rekombinantes humanes Transferrin)<\/td><td>5\u201310 \u00b5g\/mL<\/td><\/tr>\n    <tr><td>Signal zur Glukoseaufnahme<\/td><td>Rekombinantes humanes Insulin<\/td><td>5\u201310 \u00b5g\/mL<\/td><\/tr>\n    <tr><td>Proliferation (IGF-1-Rezeptor-Signal)<\/td><td>Rekombinantes humanes IGF-1<\/td><td>25\u201350 ng\/mL<\/td><\/tr>\n    <tr><td>Abfangen reaktiver Sauerstoffspezies<\/td><td>Natriumselenit<\/td><td>5\u201320 ng\/mL<\/td><\/tr>\n    <tr><td>Lipidversorgung<\/td><td>Chemisch definiertes Lipidkonzentrat<\/td><td>0.2% v\/v<\/td><\/tr>\n  <\/tbody>\n<\/table>\n\n<h2>Das vollst\u00e4ndige serumfreie HEK293T-Medium f\u00fcr die AAV-Produktion<\/h2>\n<p>Ausgehend von DMEM mit hohem Glukosegehalt und L-Glutamin (ohne Pyruvat \u2013 Pyruvat konkurriert mit dem Glukosestoffwechsel) f\u00fcgen Sie hinzu:<\/p>\n\n<table>\n  <thead><tr><th>Komponente<\/th><th>Konzentration<\/th><th>Funktion<\/th><th>Herkunft<\/th><\/tr><\/thead>\n  <tbody>\n    <tr><td>rHSA (in Reis exprimiert, OsrhHSA)<\/td><td>1\u20132 g\/L<\/td><td>Tr\u00e4gerprotein, Radikalf\u00e4nger, Stabilisierung<\/td><td>Rekombinante Pflanzenexpression \u2013 ACF<\/td><\/tr>\n    <tr><td>OsrhTF (rekombinantes humanes Transferrin)<\/td><td>5\u201310 \u00b5g\/mL<\/td><td>Eisenversorgung per TfR1-Endozytose<\/td><td>Rekombinante Pflanzenexpression \u2013 ACF<\/td><\/tr>\n    <tr><td>Rekombinantes humanes Insulin<\/td><td>5\u201310 \u00b5g\/mL<\/td><td>Glukoseaufnahme, mTOR-Signal, Proliferation<\/td><td>Rekombinant aus E. coli \u2013 ACF<\/td><\/tr>\n    <tr><td>Rekombinantes humanes IGF-1<\/td><td>25\u201350 ng\/mL<\/td><td>Proliferation, IGF-1R-Signal<\/td><td>Rekombinant \u2013 ACF<\/td><\/tr>\n    <tr><td>Natriumselenit<\/td><td>5\u201320 ng\/mL<\/td><td>Kofaktor der Glutathionperoxidase \u2013 Schutz vor reaktiven Sauerstoffspezies<\/td><td>Synthetisch \u2013 ACF<\/td><\/tr>\n    <tr><td>Ethanolamin<\/td><td>1\u20132 \u00b5M<\/td><td>Phospholipidbiosynthese<\/td><td>Synthetisch \u2013 ACF<\/td><\/tr>\n    <tr><td>Chemisch definiertes Lipidkonzentrat<\/td><td>0.2% v\/v<\/td><td>Versorgung mit Membranlipiden<\/td><td>Synthetisch \u2013 ACF<\/td><\/tr>\n    <tr><td>L-Glutamin (oder stabiles Glutamin-Dipeptid)<\/td><td>2\u20134 mM<\/td><td>Energiestoffwechsel, Nukleotidbiosynthese<\/td><td>Synthetisch \u2013 ACF<\/td><\/tr>\n  <\/tbody>\n<\/table>\n\n<div class=\"box\">\n<strong>Kritischer Punkt \u2013 Eisenmangel:<\/strong> Die h\u00e4ufigste Ursache f\u00fcr eine gescheiterte serumfreie Adaptation von HEK293T ist fehlendes Transferrin. Eisenmangel f\u00fchrt innerhalb von 2\u20133 Passagen zu mitochondrialen St\u00f6rungen und ist schwer zu erkennen, weil die Zellen unter dem Mikroskop bis zum Zusammenbruch normal aussehen. Geben Sie immer 5\u201310 \u00b5g\/ml OsrhTF zu \u2013 ohne Transferrin scheitert ein serumfreies Medium, egal wie gut alles andere formuliert ist.\n<\/div>\n\n<h2>rHSA \u2013 warum in Reis exprimiertes OsrhHSA die richtige Wahl ist<\/h2>\n<p>rHSA f\u00fcr AAV-Produktionsmedien muss tierfrei und xenofrei sein. Drei Expressionssysteme sind kommerziell verf\u00fcgbar:<\/p>\n<ul>\n  <li><strong>In Reis exprimiertes OsrhHSA (Oryza sativa):<\/strong> vollst\u00e4ndig tierfrei, kein Kontaminationsrisiko durch S\u00e4ugerzellen, \u226595 % Reinheit, in kommerziellen AAV-GMP-Prozessen eingesetzt \u2013 die richtige Wahl f\u00fcr ACF-AAV-Medien<\/li>\n  <li><strong>In Hefe exprimiertes rHSA (Pichia pastoris):<\/strong> tierfrei, aber manche Chargen zeigen hefespezifische Glykosylierungsartefakte \u2013 akzeptabel, f\u00fcr GMP aber weniger bevorzugt<\/li>\n  <li><strong>In CHO exprimiertes rHSA:<\/strong> in S\u00e4ugerzellen exprimiert \u2013 nicht mehr ACF, bringt wieder ein Risiko tierischer Bestandteile<\/li>\n<\/ul>\n\n<h2>Umstellungsprotokoll \u2013 von FKS auf serumfrei in HEK293T<\/h2>\n<p>HEK293T-Zellen passen sich leichter an serumfreies Medium an als die meisten S\u00e4ugerzelllinien \u2013 typischerweise in 3\u20135 Passagen. Der empfohlene \u00dcbergang:<\/p>\n<ol>\n  <li><strong>Passage 1:<\/strong> DMEM + 5 % FKS + vollst\u00e4ndiges serumfreies Supplementpaket<\/li>\n  <li><strong>Passage 2:<\/strong> DMEM + 2 % FKS + vollst\u00e4ndiges serumfreies Supplementpaket<\/li>\n  <li><strong>Passage 3:<\/strong> DMEM + 1 % FKS + vollst\u00e4ndiges serumfreies Supplementpaket<\/li>\n  <li><strong>Passage 4:<\/strong> DMEM + nur serumfreie Supplemente \u2013 kein FKS<\/li>\n  <li><strong>Ab Passage 5:<\/strong> Vor der serumfreien Produktion im vollen Ma\u00dfstab einen kleinen AAV-Produktionstest zur Best\u00e4tigung der Titergleichwertigkeit durchf\u00fchren<\/li>\n<\/ol>\n<p>\u00dcberwachen Sie die Verdopplungszeit bei jeder Passage \u2013 akzeptabel sind f\u00fcr HEK293T in serumfreiem DMEM \u226422 Stunden. \u00dcberschreitet die Verdopplungszeit bei einem Schritt 24 Stunden, bleiben Sie eine weitere Passage bei dieser FKS-Konzentration, bevor Sie weiter reduzieren.<\/p>\n\n<h2>Welcher Titer ist mit serumfreiem im Vergleich zu FKS-haltigem Medium zu erwarten?<\/h2>\n<p>Mit einer gut optimierten serumfreien Formulierung sind die AAV-Titer gleichwertig zu optimiertem Low-Endotoxin-FKS \u2013 in manchen Laboren sogar etwas h\u00f6her, weil der Wegfall von Endotoxin und schwankender Wachstumsfaktorzusammensetzung Quellen der Chargenvariabilit\u00e4t beseitigt. Rechnen Sie mit 1\u20132 Passagen Adaptation, in denen die Titer 30\u201350 % unter dem FKS-Ausgangswert liegen k\u00f6nnen, bevor sie sich auf gleiches oder h\u00f6heres Niveau erholen.<\/p>\n<div class=\"cta-box\">\n<h3>Komponenten f\u00fcr serumfreie AAV-Medien \u2013 rHSA und OsrhTF<\/h3>\n<p>SeamlessBio liefert OsrhHSA (in Reis exprimiertes rHSA) und OsrhTF (in Reis exprimiertes rekombinantes Transferrin) \u2013 die wichtigsten ACF-Komponenten f\u00fcr serumfreie HEK293T-Medien in der AAV-Produktion.<\/p>\n<div class=\"cta-btns\">\n<a href=\"https:\/\/seamlessbio.de\/de\/produkte\/albuminproteine\/\" class=\"btn-o\">rHSA \u2013 OsrhHSA-Portfolio \u2192<\/a>\n<a href=\"https:\/\/seamlessbio.de\/de\/what-is-recombinant-transferrin\/\" class=\"btn-o\">Rekombinantes Transferrin OsrhTF \u2192<\/a>\n<a href=\"https:\/\/seamlessbio.de\/de\/what-is-rhsa-recombinant-human-serum-albumin\/\" class=\"btn-o\">Was ist rHSA? \u2192<\/a>\n<a href=\"https:\/\/seamlessbio.de\/de\/produkte\/fks-low-endotoxin\/\" class=\"btn-o\">FKS Low Endotoxin f\u00fcr HEK293T \u2192<\/a>\n<a href=\"https:\/\/seamlessbio.de\/de\/kontakt\/\" class=\"btn-o\">Angebot anfordern \u2192<\/a>\n<\/div>\n<\/div>\n<\/div>\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>Moving AAV production from serum-containing to serum-free medium is increasingly driven by regulatory pressure \u2014 particularly for IND-enabling and clinical-grade AAV where animal-derived components require extensive TSE\/BSE documentation. This post gives you the complete component list, explains what each component replaces in FBS, and provides a practical transition protocol. Buy serum-free cell culture media from [&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":[1],"tags":[],"class_list":["post-3359","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Serum-Free for AAV Production - Complete Component List<\/title>\n<meta name=\"description\" content=\"The complete component list for serum-free HEK293T medium for AAV production \u2014 rHSA, OsrhTF, insulin, growth factors, and what each does. 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