3T3 L1 Cell Line from mouse

3T3 L1 cell line from mouse has been used to study changes in lipopolysaccharide-induced inflammatory cytokine production and anti-inflammatory effects of galectin-3 in 3T3-L1 adipocytes. It has also been used in neutral red uptake assay (NRU) and neutral red release assay (NRR) as in vitro methods to assess eye irritation hazards of formulations and chemicals.

3T3 L1 is a continuous strain of 3T3 developed through clonal isolation. The cells are not contact inhibited. Cells can be induced to become adipose-like using the method described in the subculture routine information. Appearance of adipocytes can take weeks to achieve.
We would like to manage customer expectations with regard to the potential of the current 3T3 cell line stocks to differentiate into adipocytes. If you intend to use the cells for adipocyte differentiation please note: When cells are stimulated, using an appropriate protocol, differentiation may take several weeks to occur, e.g. 2 - 5 weeks, and the proportion of the population which differentiates can be limited. If you have previously used 3T3 cells from an alternative source we cannot guarantee the differentiation performance will be the same.
We are working to source a new stock of this cell line that has a higher rate of adipocyte differentiation potential which we aim to be able to offer in the future. When this is available we will update the cell line details on the website.

Mouse Embryo

DMEM + 2mM Glutamine + 10% Calf Serum (CS)

Split sub-confluent cultures (70-80%) i.e. seeding at 1-2 x10⁴/cm² in a 75cm² flask using 0.05% trypsin or trypsin/EDTA; 5% CO₂; 37°C. Never allow the culture to become fully confluent and subculture every 3 days. To stimulate differentiation into adipocytes grow the cells to confluency using the DMEM + 10% calf serum. 2 days after confluency induce differentiation by adding 0.5 mM 3-isobutyl-1-methylxanthine (IBMX), 0.25uM Dexamethasone and 1ug/ml Insulin in DMEM with 10% Foetal Bovine Serum (FBS). After 2 days remove the IBMX and dexamethasone but maintain with insulin for another 2 days. On day 4, after inducing differentiation, and thereafter, culture the cells in DMEM with 10% FBS. Change medium every second day. Differentiation may take several weeks to occur e.g. 2 - 5 weeks. Differentiation begins in patches but with time a significant percentage of the population should change. Before any experiments on the differentiated cells incubate in serum-free DMEM for 2 hours.

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