Human Cardiac Fibroblasts (HCF)

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Some of our customers have successfully used PromoCell Endothelial Cell Growth Medium MV2 (C-22022) when co-culturing Human Coronary Artery Endothelial Cells (HCAEC; C-12221) and Normal Human Dermal Fibroblasts (NHDF; C-12300).

Short protocol:

• Trypsinize the cells as usual
• Centrifuge and resuspend in suitable cold freezing medium at a density of 1-4 x 10⁶ cells/ml
• Cool down the cells slowly to -80°C (approx. -1°C per min). We recommend to use "Mr. Frosty" from Nalge or "CoolCell" from Biocision; which both provide gradual and controlled cooling rates when placed in a -80°C freezer overnight.
• Transfer the vials into liquid nitrogen for long-term storage

• Mesenchymal Stem Cells (C-12974/C-12971/C-12977) need Fibronectin-coating when grown in PromoCell MSC Growth Medium XF (C-28019) and when differentiated in MSC Neurogenic (C-28015); Adipogenic (C-28016); or Osteogenic (C-28013) Differentiation Media.
• Human monocyte-derived macrophages (C-12914/C-12916/C-12915/C-12917) must be seeded into Fibronectin-coated culture vessels in combination with PromoCell's M1- and M2-Generation Media XF (C-28055; C-28056).
• For efficient induction of osteoblast mineralization with PromoCell's Osteoblast Mineralization Medium (C-27020); the TC plates should be pre-coated with collagen type I.

• Liquid phase storage provides a consistent temperature of -196°C; a longer holding time and a greater vial capacity but involves the risk of contamination issues.
• Storage in the gas phase is very safe with respect to contaminations but the holding time of the cells is shorter and the vial capacity is reduced.

General protocol for recovery of anchorage-dependent primary cells: Remove vial from liquid nitrogen; transport it on dry ice to the cell culture lab. Thaw in a 37°C waterbath for approx. 2 min; until it is just defrosted. Keep the vial immersed in water until just below the screw cap during thawing and only remove it shortly after approx. 90 sec to check the progress. Do not repeatedly insert and remove the vial while thawing in water. Carefully disinfect the vial with plenty of 70% EtOH under the laminar flow hood and aseptically transfer the thawed suspension into an appropriate TC dish with growth medium (pre-warmed in the incubator for > 30 min). The cells usually attach within a few hours. Perform media change after 24 hrs at the latest to remove residual DMSO from the freezing media. Additional information can be found in the instruction manuals of our cells.