How do you use embryonic fibroblasts in culture mouse?

Culture and passage of mouse embryonic fibroblasts. To obtain cells for culture, carefully place a 5 ml pipette through the supernatant and pipette up the pellet along with 0.5–1 ml of the supernatant (Figure 2H, 2I), and place in a 100-mm dish containing 10 ml complete culture medium for each embryo.

How do you isolate MEFs?

Making MEFs

  1. Place freshly harvested embryos in 10cm cell culture dish.
  2. Cover embryos in PBSA and remove placental and other maternal tissues.
  3. Cut away top of head (eye and above) and eviscerate removing all innards.
  4. Save head for DNA isolation for genotyping (or yolk sac)
  5. Place embryo body in separate 10cm plate.

Are MEFs immortalized?

These cells are SV40 immortalized mouse embryonic fibroblasts (MEFs), which were generated from wild type mice. These cells are SV40 immortalized mouse embryonic fibroblasts (MEFs), which were generated from wild type mice.

What are MEF cells?

Mouse Embryonic Fibroblasts (MEFs) are a type of fibroblast prepared from mouse embryo. MEFs show a spindle shape when cultured in vitro, a typical feature of fibroblasts. The MEF is a limited cell line. After several transmission, MEFs will senesce and finally die off.

What is in MEF conditioned media?

MEF conditioned media represents an efficient alternative to MEF feeder cells and is one of the mostly widely used feeder-free systems for embryonic stem cell culture. MEF Conditioned Media includes the soluble factors required to support stem cell growth and pluripotency.

Why do we use mouse embryonic fibroblasts?

Abstract. Mouse embryonic fibroblasts (MEFs) are commonly collected as a means to maintain the culture and growth of embryonic stem cells (ESCs). However, their utility can extend well beyond their use exclusively in ESC culture.

How do you immortalize MEF?

Two major approaches have been used to immortalize primary MEFs: (i) spontaneous immortalization after a series of passages and (ii) transformation by overexpression of an oncogene. The serial passage protocol, as described by Xu [2], relies on spontaneous mutation to achieve immortalization.

What are MEFs used for?

Primary mouse embryonic fibroblasts (MEFs) are the most commonly used feeder layers that help to support growth and maintain pluripotency of embryonic stem cells (ESC) in long-term culture. Feeders provide substrates/nutrients that are essential to maintain pluripotency and prevent spontaneous differentiation of ESC.

What are STO feeder cells?

STO feeder cells, a line established from mouse SIM embryonic fibroblasts, have been frequently used for establishing embryonic stem cells and maintaining them in an undifferentiated state.

What are mouse feeder cells?

Mouse embryonic fibroblasts (MEFs) are the most commonly used feeder cell type and have reliably served as feeder cells for co-culture with mouse ESC since they were first derived in 1981.