Mouse Embryonic Fibroblasts & Embryonic Stem Cells

One of the many services that MAPS provides is generating custom mouse embryonic fibroblasts (MEFs) and embryonic stem cells (ESCs) from your desired strain.

MAPS is a start-to-finish service, helping with importation of mice, and undertaking all mouse and tissue culture work. Depending on your project needs, we can produce otherwise identical lines of MEFs or ESCs with different genotypes (e.g. wild type, heterozygous, homozygous).

ESCs can be an incredibly useful in vitro tool. For example, having stem cells made from your own transgenic strain, on your genetic background, may be ideal for optimizing CRISPR/Cas9 reactions. MEFs are also a cost effective way to run many biochemical experiments. Overall, using MEFs and ESCs may reduce the use of mice, in keeping with the three R’s of animal research.

MAPS currently has a variety of different types of MEFs available for sale, and a number of proven germline competent mouse ESCs ready to be targeted

Fees are specific to the requirements of the individual project. Services offered are flexible and projects can be customized to meet individual needs. For project-based pricing please contact us at