Figure 1From: A practical approach for the validation of sterility, endotoxin and potency testing of bone marrow mononucleated cells used in cardiac regeneration in compliance with good manufacturing practiceSchematic representation of the invasion assay. BM-MNC cells were resuspended in 5% v/v human albumin and placed in the upper part of a modified Boyden chamber Matrigel invasion chamber. The chamber consist of a 24-well cell culture insert with an 8 μm pore size PET membrane, uniformly coated with Matrigel matrix. The matrix provides a barrier to non-invasive cells while presenting an appropriate protein structure for invading cells to penetrate before passing through the membrane. The chamber was then placed in a 24-well culture dish containing 500 μl of Endocult basal medium supplemented with Endocult single quots (Stemcells technologies, Vancouver, Canada) and 20% fetal calf serum. After 24 h of incubation transmigrated cells were counted.Back to article page