When should I use Biosilk 521? What biological effect does Biolaminin 521 have on the cells?
Biolaminin 521 (laminin-521 protein) is a key cell adhesion protein of the natural stem cell niche, expressed and secreted by human pluripotent stem cells (hPSCs) in the inner cell mass of the embryo. The Biolaminin 521 cell culture substrates successfully recreate the biologically relevant hPSC milieu in vitro. Via integrin binding, Biolaminin 521 induces the PI3K/Akt signaling pathway, promoting high survival and robust long-term self-renewal of human embryonic stem cells (hESC) and induced pluripotent stem cells (iPSC). Biolaminin 521 supports the high survival of cells as single cells even without the addition of ROCKi and also promotes migration with facilitates cell organization in the Biosilk scaffold. Together, Biosilk and Biolaminin 521 create a biologically relevant 3D culture environment for the expansion and differentiation of human ES and iPS cells. The laminin 521 protein is also one of the most common laminins expressed in the human adult body and therefore Biolaminin 521 also supports the culture of specialized tissue cell types, such as pancreatic cells, liver cells, vascular cells, cardiac and skeletal muscle cells, and different neural cells.