Freezing Harvested hMSCs and Recovery of hMSCs from Frozen Vials for Subsequent Expansion, Analysis, and Experimentation
Human multipotential stromal cells (hMSCs) are easily isolated from bone marrow and can be expanded by up to 200-fold in culture. Cultures of hMSCs are heterogeneous mixtures of stem/progenitor cells and more mature cell types. The proportion of each cell type in a given culture depends on how the cells are maintained. To maintain their stem cell-like qualities, hMSCs should be plated at low seeding densities (60–150 cells/cm2 ), lifted when between 60% and 80% confluent and should not be expanded beyond 4–5 passages. Thus, it is useful to establish a frozen bank of early passage cells. hMSCs store well in vapor phase liquid nitrogen (LN2 ) and are easily recovered for further expansion. This chapter describes one method of establishing a bank of early passage hMSCs using a seed lot system and the subsequent recovery of hMSCs from frozen stocks. The recovered cells can then be harvested and used for analyses of identification, functionality, in vitro and/or in vivo experimentation, or further expanded.
- Lanthanide-Based Upconversion Nanoparticles for Connexin-Targeted Imaging in Co-cultures
- The Use of FRET Microscopy to Elucidate Steady State Channel Conformational Rearrangements and G Protein Interaction with the GI
- Generation of Nonviral Integration-Free Induced Pluripotent Stem Cells from Plucked Human Hair Follicles
- Studying Ligand Efficacy at G Protein-Coupled Receptors Using FRET
- Characterization of Archived Formalin-Fixed/Paraffin-Embedded or Cryofixed Tissue, Including Nucleus Extraction
- Angiogenic Signalling Pathways
- Revised protocol for establishing a mammary cell line from tumors
- Studying the Structure of Microtubules by Electron Microscopy
- Tissue Recombinants to Study Extracellular Matrix Targeting to Basement Membranes
- 细胞吸附试验