ArticleIn vitro cellular & developmental biology. Animal2015
Derivation of embryonic stem cells from Kunming mice IVF blastocyst in feeder- and serum-free condition.
Article in In vitro cellular & developmental biology. Animal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
6 authors at 4 institutions in 3 countries.
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Abstract
Kunming mice are widely used in China; however, it is difficult to isolate embryonic stem cells (ESCs) in conventional derivation condition containing feeder cells and serum. 6-Bromoindirubin-3'-oxime (BIO), a glycogen synthase kinase 3 (GSK3) inhibitor, could facilitate the maintenance of pluripotency of ESCs. Therefore, BIO could be considered as a candidate to replace feeder cells and serum. On the other hand, in vitro fertilization (IVF) is an important technology in assisted reproduction. It is reported that there was some difference in gene expression between IVF and in vivo developed blastocyst. ESCs derived from IVF blastocyst could provide a valuable tool to research the effect of IVF on differentiation and development. In the present study, we established two novel ESC lines from IVF blastocyst of Kunming mice in a feeder- and serum-free condition containing 2.5 μM BIO. In this condition, expanded IVF blastocyst could spontaneously hatch from zonae pellucidae and attached to the gelatin-coated bottom of dishes. ESC-like outgrowth could be observed without overfull trophoblast cells. After further propagation, two Kunming mice ESC lines, designated as KMES1 and KMES2, were obtained. These two novel ESCs shared common morphological characteristics with other rodent ESCs, showed strong alkaline phosphatase activity, and expressed pluripotent markers, including Oct-4, Nanog, and SSEA-1. Embryoid body (EB) and teratoma test indicated that these ESCs could spontaneously differentiate into cells representative of all three embryonic germ layers.
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