Organoids with functional cells inside and out
The developed brain organoid model, recently reported by researchers at Lund University in Nature Communications, enabled reproducible differentiation of functional neurons in 3D.
Yes it is- large scale cell culturing of pluripotent stem cells in bioreactors with Biolaminin® coated micro- and macro beads has proved to meet clinical needs – both in quantity and quality
Biolaminin 521 coated microcarrier systems can easily be scaled up in dynamic large-scale culture systems such as stirred bioreactors due to their 3D suspended nature. This system leads to high volumetric cell yield which is achieved due to better oxygenation, better metabolite mass transport, and limited microenvironment toxicity. In comparison to monolayer culture, this system allows cost-effective, GMP-compliant production of large amounts of clinical-grade hPSC with consistent and predictable characteristics to achieve the needs in developing cellular therapy.
A bioreactor system with Biolaminin-521 coated microcarriers was reported to offer a GMP-compatible and scalable bioprocessing platform to produce human embryonic stem cells (hESCs) with the quantity and quality compliant for clinical applications (Lam et al. 2015). BioLaminin 521 coated microcarriers efficiently supported hESC attachment, spreading, and growth in agitated conditions, without the need for additional positive charges. Importantly, the cultured cells-maintained pluripotency for more than 10 passages and retained normal karyotype. The cells were able to differentiate into lineages of all three germ layers and then specifically to cardiomyocytes.
A chemically defined method, utilizing Biolaminin 521 and microcarrier-based suspension culture, was applied to scale up red blood cell (RBC) production (Sivalingam et al. 2018, Sivalingam et al. 2020). The improved cell survival and the better-quality process resulted in significant improvement in hematopoietic precursor expansion and RBC yield compared to a conventional embryoid body-based method.
Quantum Cell Expansion System (QES) coated with Biolaminin 521 was shown to provide the necessary environment for exponential induced pluripotent stem cell (iPSC) growth (Mesquita et al. 2019). Exponential iPSC growth was not observed when vitronectin coating was used in the QES, even though media consumption was the same under both conditions. This indicates that the coating has an important effect on the proliferation rate of the cells.
The Biolaminin 521 coated microcarrier beads in stirred bioreactors were also shown to increase megakaryocyte production per iPSC by up to 10-fold (Eicke et al. 2018). Megakaryocytes are the precursors of platelets and they can be used for platelet production, as well as a source for platelet-derived growth factors. Megakaryocytes obtained with this system showed typical features of mature cells and were able to produce platelets in vitro and in vivo. The possibility to use freshly produced platelets in large numbers will facilitate the development of megakaryocyte-based therapeutic strategies.
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