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Published on: August 21, 2013
Compaction-defective embryonal carcinoma cell variants
1Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD 21205.
Abstract:
Compaction of the morula is a prerequisite for subsequent differentiation of the mouse embryo. Analogous differentiation follows compaction in aggregates of several embryonal carcinoma cell lines. This report describes the isolation of two compaction-defective variants from the H6 embryonal carcinoma cell line. These were isolated directly as clonal compaction-defective aggregates in medium containing 1.3% methylcellulose. They were obtained following chemical mutagenesis, since spontaneous variants were not seen. Compaction-defective variants of the F9 ECC line or the ES-D3 embryonic stem cell line could not be obtained. One of the H6 compaction-defective variants appeared to be dominant when hybridized to its parental line, while the other appeared to be recessive.
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