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Cloning. 2001;3(2):59-67.

Pluripotency of bovine embryonic cell line derived from precompacting embryos.

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  • 1BresaGen, Inc., Athens, Georgia 30604, USA. mitalipova@hotmail.com

Abstract

We report herein the establishment of three bovine pluripotent embryonic cell lines derived from 8-16-cell precompacting embryos. Two cell lines were cultured for 10 passages and underwent spontaneous differentiation. One cell line (Z2) has been cultured continuously for over 3 years and has remained undifferentiated. These cells express cell surface markers that have been used routinely to characterize embryonic stem (ES) and embryonic germ (EG) cells in other species such as stage-specific embryonic antigens SSEA-1, SSEA-3, and SSEA-4, and c-Kit receptor. In the absence of a feeder layer, these cells differentiated into a variety of cell types and formed embryoid bodies (EBs). When cultured for an extended period of time, EBs differentiated into derivatives of three EG layers - mesoderm, ectoderm, and endoderm - which were characterized by detection of specific cell surface markers. Our results indicate that the Z2 cell line is pluripotent and resembles an ES cell line. To our knowledge, this is the first bovine embryonic cell line that has remained pluripotent in culture for more than 150 passages.

PMID:
11900640
[PubMed - indexed for MEDLINE]
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