Abstract:
:Specification to primordial germ cells (PGCs) is mediated by mesoderm-induction signals during gastrulation. We found that Akt activation during in vitro mesodermal differentiation of embryonic stem cells (ESCs) generated self-renewing spheres with differentiation states between those of ESCs and PGCs. Essential regulators for PGC specification and their downstream germ cell-specific genes were expressed in the spheres, indicating that the sphere cells had commenced differentiation to the germ lineage. However, the spheres did not proceed to spermatogenesis after transplantation into testes. Sphere cell transfer to the original feeder-free ESC cultures resulted in chaotic differentiation. In contrast, when the spheres were cultured on mouse embryonic fibroblasts or in the presence of ERK-cascade and GSK3 inhibitors, reversion to the ESC-like state was observed. These results indicate that Akt signaling promotes a novel metastable and pluripotent state that is intermediate to those of ESCs and PGCs.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Yamano N,Kimura T,Watanabe-Kushima S,Shinohara T,Nakano Tdoi
10.1016/j.bbrc.2010.01.005subject
Has Abstractpub_date
2010-02-12 00:00:00pages
311-6issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(10)00027-6journal_volume
392pub_type
杂志文章abstract::Prion diseases are fatal neurodegenerative diseases associated with structural conversion of α-helical prion protein (PrP) into its β-sheet rich isoform (PrPSc). Previous genetic analyses have indicated that several amino acid residues involved in the hydrophobic core of PrP (such as V180, F198, and V210) play a criti...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.0128
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(84)80091-1
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2014.10.100
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(83)90662-9
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journal_title:Biochemical and biophysical research communications
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doi:10.1016/j.bbrc.2009.03.029
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)90945-8
更新日期:1984-10-15 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2010.10.012
更新日期:2010-11-12 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1999.0880
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.06.071
更新日期:2006-08-18 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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更新日期:2009-12-18 00:00:00
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
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abstract::Transglutaminase inhibitor (1,3,4,5-tetramethyl-2-[(2-oxopropyl)thio]imidazolium chloride or L-682777) affected the appearance of the fertilization envelope (FE) and subsequent development in Sphaerechinus granularis and Arbacia punctulata in a concentration-dependent manner. Abnormalities were first visible in formin...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2702
更新日期:1994-11-30 00:00:00