Abstract:
:Bovine embryonic stem-like cells (ES-like cells) appear to maintain a normal diploid karyotype indefinitely during culture in vitro and to express marker proteins that are characteristic of ES cells from mice, namely, alkaline phosphatase (AP), stage-specific embryonic antigen-1 (SSEA-1), STAT-3, and Oct 4. After proliferation of undifferentiated ES-like cells in vitro, some bovine ES-like cells differentiated to neural precursor cells, which were cultured in the presence of basic fibroblast growth factor (bFGF), epidermal growth factor (EGF), and platelet-derived growth factor (PDGF). In addition, calves were successfully cloned using ES-like cells and the frequency of term pregnancies for blastocysts derived from ES-like cells was higher than those of early pregnancies and maintained pregnancies after nuclear transplantation (NT) with bovine somatic cells. Successful cloning from bovine ES-like cells should allow the introduction into cattle of specific genetic characteristics of biomedical and/or agricultural importance.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Saito S,Sawai K,Ugai H,Moriyasu S,Minamihashi A,Yamamoto Y,Hirayama H,Kageyama S,Pan J,Murata T,Kobayashi Y,Obata Y,Yokoyama KKdoi
10.1016/s0006-291x(03)01536-5subject
Has Abstractpub_date
2003-09-12 00:00:00pages
104-13issue
1eissn
0006-291Xissn
1090-2104pii
S0006291X03015365journal_volume
309pub_type
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