HF MicroBrx™ Hollow Fiber R&D Tool New to hollow fiber technology? Testing many clones or media? Pursuing R&D or feasibility projects? Static culture product concentration low? HF MicroBrx is our patented, micro-sized hollow fiber bioreactor for your R&D projects. HF MicroBrx is ideal for rapidly testing of numerous variables at low-cost, unlike larger cell culture systems! HF MicroBrx is simple to use — like T-Flasks — and only needs a CO2 incubator. Experience the advantages of hollow fiber cell culture: • • • • • Culture suspension or adherent cells Cells naturally grow to tissue-density Product concentrates as it’s secreted Product is not diluted in the feed media Collect usable product — even from low-secreting cell lines! Biovest’s HF MicroBrx™: 0.2 mL culture volume, 0.003 m2 Biovest’s large-scale hollow fiber bioreactor: 155 mL culture volume, 2.1 m2 surface area HF MicroBrx™ Hollow Fiber R&D Tool EC Port (non cell-side) HF MicroBrx Design One Bioreactor … Two Compartments HF MicroBrx, like our large-scale hollow fiber bioreactor systems, has two compartments that are separated from one another IC Port (cell-side) by the semi-permeable (<60 KDa MWCO) membrane (wall) of the hollow fiber. ExtraCapillary (EC) Space • • • • • • IC Volume outside of the hollow fibers Large volume, ~4.5 mL Functions as reservoir of small nutrients Cell-free (non cell-side of hollow fiber wall) Product-free Cell culture medium in EC may or may not contain growth supplements EC Glucose IntraCapillary (IC) Space • • • • • Porous Hollow Fiber Wall Combined volume inside all of the hollow fibers Small volume, ~0.2 mL Contains cell culture (cell-side of hollow fiber wall) Contains concentrated product Cell culture medium in IC contains growth supplements (unless protein-free adapted) Lactate O2 Ammonia CO2 Sil ico ne Tu bin g Glutamine Rapid Experiments! Day 0 Day 1 Fill & rinse with media, Place in CO2 incubator Inoculate (low- or high-density condition) • 0.2 mL cells (5x106/mL) to model growth phase • 0.2 mL cells (5x107/mL) to model production phase Day 2,3 Optionally • change EC medium (high-density inoculum) • assay metabolites, pH, DO Day 4 Collect Data • harvest & count cells • assay metabolites, pH, DO • assay and test product CO2 Exchange O2 Diffusion Specifications & Requirements Sold sterile in 3-pack with needed supplies ~1˝ (2.5 cm) diameter, ~9˝ (23 cm) long CO2 cell culture incubator Select Journal Citations Low-Density Evaluation • good growth is ~ 2 – 5x expansion in 3 days High-Density Evaluation • correlate production dynamics to cell number Gramer, M.J., Britton, T.B. (2002) Antibody Production by a Hybridoma Cell Line at High Density is Limited by Two Independent Mechanisms. Biotech. Bioeng., 79, 277-283. Gramer, M.J., Britton, T.B. (2000) Selection and isolation of cells for optimal growth in hollow fiber bioreactors. Hybridoma., 19, 407-412. Curt Gleiter, Client Service - Instruments www.biovest.com 8500 Evergreen Blvd. | Minneapolis, Minnesota 55433 USA (763) 786-0302 ext. 215 | [email protected]
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