PRODUCT RECOMMENDATION
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PROTOCOL
Generation of iPSC-derived megakaryocytes and platelets
Red blood cell generation from human pluripotent stem cells
CUSTOMER TESTIMONIALS
"Our iPSC culture on LN521 is easy and stable. The use of LN521 allows us to maintain the iPSCs in monolayer culture for a prolonged time and also supports the differentiation of MKs and PLTs. It represents a good alternative to other matrices especially as it is fully defined and therefore compatible with GMP standards”
Dorothee Eicke, PhD-Student, Hannover Medical School, Germany
"Before BioLamina, it was challenging to assess the reactivity of individual laminin isoforms towards cells because it is very difficult to purify laminins from tissues. Using the recombinant and very pure laminins from BioLamina, we could show that vascular isoforms containing the α5 or α4 but not α2 chain support efficient blood platelet adhesion and activation underflow in a process dependent on integrin α6β1, GPVI and the GPIb-VWF axis."
Dr. Mathieu Schaff, INSERM, Université de Strasbourg, France
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ARTICLES
HOW TO CULTURE HEMATOPOIETIC CELLS ON BIOLAMININ SUBSTRATES
Laminins play a major role in the hematopoietic microenvironment
Laminins are widely expressed in human bone marrow play a major role in the hematopoietic microenvironment. Laminin isoforms 521, 511, 411 and 421 are the most abundant, synthesized by human bone marrow stromal cells (Siler, 2000). Laminin 521 and laminin 511 have been shown to have strong adhesive interaction with CD34+ human hematopoietic stem cells (HSC) and progenitor cells, mediated largely via the integrin a6B1 receptor (Siler, 2000; Qian, 2006). Laminin 521 and laminin 511 is also highly adhesive to lineage-committed myelomonocytic and erythroid progenitor cells and most lymphoid and myeloid cell lines (Gu, 2003). These alpha-5 containing laminins also stimulate migration and proliferation of human hematopoietic progenitor cells (Gu, 2003), suggesting an important physiological role of laminins during hematopoiesis. Other laminin isoforms, such as laminin 111, show only weak adhesive interaction (Siler, 2000; Gu, 2003). Rodent CD34+ HSC transplantation experiment has shown that the laminin-integrin interaction also mediates homing (Qian, 2006; Carvalho, 2008).
Biolaminin 521 is an optimal substrate for large-scale production of clinically compliant megakaryocytes and platelets
Due to the biorelevant environment created, Biolaminin 521 is an optimal substrate for clinically compliant hematopoietic differentiation. In a publication by Börger et al, the authors present an animal origin-free and defined protocol for the generation of functional megakaryocytes and platelets from an HLA-universal iPSCs on the human recombinant Biolaminin 521 culture substrate (Börger, 2015). Biolaminin 521 has also successfully been used for large-scale MK production. With an effective, xeno-free and scalable system, Biolaminin 521-coated microcarriers increased MK production per iPSC by up to 10-fold (18.7x107 MKs per 50 ml medium). MKs obtained in this system showed typical features of mature MKs and were able to produce PLTs in vitro and in vivo (Eicke, 2018). Laminins also have an important contribution to thrombus formation in vivo. Schaff and colleagues (2013) show that laminin 411, laminin 511, and laminin 521, but not laminin 211, allow efficient platelet adhesion and activation (via integrin a6B1) across a wide range of arterial wall shear rates.
iPS cell-derived megakaryocyte with proplatelets.
Courtesy of Dorothee Eicke, Hannover Med. School.
A recent publication by Singapore researchers (Sivalingam, 2016) shows that a Biolaminin 521 coated microcarrier-based embryoid body (EB) platform support superior red blood cell (RBS) generation from human pluripotent stem cells. The authors developed a scalable, serum- and animal origin-free, and chemically defined microcarrier-based platform using human recombinant Biolaminin 521 as an extracellular matrix for hPSC expansion, EB formation, and subsequently hematopoietic differentiation of hPSC. Improved survival and better quality EBs generated with the microcarrier-based method resulted in significantly improved mesoderm induction and resulted in drastic improvement in hematopoietic precursor expansion and the yield of RBS generation compared to a conventional EB-based differentiation method.
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Expansion of human PSC
Mesenchymal stem cells
Clonal cell culture applications
Eye cells
Cardiac cells
Neural cells
Skeletal muscle cells
Kidney cells
Hepatic cells
Cancer cells
Lung cells
Animal stem cells
Endothelial cells
Pancreatic cells
Intestinal cells
Normal and cancerous mammary cells
Epithelial cells
Biolaminin 521 CTG
Biolaminin 521 CTG cell therapy grade cell culture matrix makes pluripotent stem cell culture easy. A defined, animal origin-free and biologically relevant cell culture system for better cell models.
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Expansion of human PSC
Clonal cell culture applications
Eye cells
Cardiac cells
Neural cells
Skeletal muscle cells
Kidney cells
Hepatic cells
Cancer cells
Lung cells
Animal stem cells
Mesenchymal stem cells
Endothelial cells
Pancreatic cells
Intestinal cells
Normal and cancerous mammary cells
Epithelial cells
Biolaminin 521 MX
Biolaminin 521 MX research-grade cell culture matrix makes pluripotent stem cell culture easy. A defined, animal origin-free and biologically relevant cell culture system for better cell models.
- x
Expansion of human PSC
Mesenchymal stem cells
Clonal cell culture applications
Eye cells
Cardiac cells
Neural cells
Skeletal muscle cells
Kidney cells
Hepatic cells
Cancer cells
Lung cells
Animal stem cells
Endothelial cells
Pancreatic cells
Intestinal cells
Normal and cancerous mammary cells
Epithelial cells
Biolaminin 521 LN
Biolaminin 521 LN research-grade cell culture matrix makes pluripotent stem cell culture easy. A defined, animal origin-free and biologically relevant cell culture system for better cell models.