Merck, S4920-5ML, SITE Liquid Media Supplement (100×)

General description
SITE Liquid Media Supplement (100×) serves as a substitute for serum-free formulations. It contains purified factors required for in vitro growth and differentiation studies. The addition of supplements to media will vary, depending on the cell type being studied and the basal medium employed. It is a general cell supplement designed for use in non-complex media (e.g., minimum essential medium (MEM), Roswell Park Memorial Institute Medium (RPMI-1640)) and complex media (e.g., Ham′s F-12, Dulbecco′s Modified Eagle Medium (DME) /F-12, MEM) with sodium pyruvate.
Application
SITE Liquid Media Supplement (100×) has been used:
in the 3D culture of mouse embryonic pancreatic epithelial cells
to isolate rabbit gastric glands and parietal cells
to isolate rabbit single proximal tubule cells

Biochem/physiol Actions
Insulin: a polypeptide hormone that promotes the uptake of glucose and amino acids and may owe an observed mitogenic effect to this property.
Transferrin: an iron-transport protein. Iron is an essential trace element but can be toxic in its free form. To nourish cells in culture, iron is supplied bound to transferrin in serum.
Selenium: an essential trace element normally provided by serum.
Ethanolamine: plays a significant role in the proliferation of hybridoma cells and frequently is added to supplements used for culturing these cells.

Preparation Note
Prepared in Earle′s Balanced Salt Solution (EBSS) without phenol red.
Other Notes
Contains 1.0mg/ml recombinant human insulin, 0.55mg/ml human transferrin (substantially iron-free), 0.5μg/ml sodium selenite and 0.2mg/ml ethanolamine at the 100x concentration.