Derivation of Trophoblast Stem (TS) Cell Lines from Blastocysts Protocol This protocol decribes derivation of TS cell lines from 3.5-days post coitum (dpc) mouse blastocysts. The procedure is similar to the derivation of embryonic stem (ES) cell lines. However, the success rate is considerably higher, and less expertise is required to recognize pluripotent TS cell colonies.
Differentiating Embryonic Stem (ES) Cells into Embryoid Bodies Protocol Pluripotent ES cells can develop into many types of differentiated tissues if they are placed back into a differentiating environment. Often, differentiation proceeds through an intermediate stage called the embryoid body (EB). EBs can be manipulated further to generate more differentiated cell types. This protocol describes a method for differentiation of ES cells into EBs.
Electroporation of ES Cells Protocol Protocol for the electroporation of ES cells. Cells are routinely passaged two days prior to electroporating. Usually one 10 cm plate at approximately 80% confluency will provide enough cells for 1-2 electroporations.
Passage of Embryonic Stem (ES) Cells Protocol This protocol describes passage of ES cells. They should be split at 1:3 to 1:7 every 2-3 days depending on their growth rate when they reach 70% confluency. They should never be allowed to grow past 90% confluency, but rather they should form tightly packed colonies not touching each other.
This protocol a protocol on how to generate transfected embryonic stem (ES) cell clones. The previous protocol in this series is the Protocol for Electroporation of ES cells. The next protocol in the series is the Protocol on Disaggregation, Expansion, and Freezing of Transfected ES Clones.
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