منابع مشابه
Embryonic divisions
The British prime minister, Gordon Brown, may have been hoping for a quiet Easter break but he soon got warning in the press of an issue that would scupper any such thoughts. The government is backing a bill that will put into law many of the practices currently licensed case by case by the Human Fertilization and Embryology Authority. Britain is currently one of the nations at the forefront of...
متن کاملExclusive multipotency and preferential asymmetric divisions in post-embryonic neural stem cells of the fish retina
The potency of post-embryonic stem cells can only be addressed in the living organism, by labeling single cells after embryonic development and following their descendants. Recently, transplantation experiments involving permanently labeled cells revealed multipotent neural stem cells (NSCs) of embryonic origin in the medaka retina. To analyze whether NSC potency is affected by developmental pr...
متن کاملThe APC/C inhibitor XErp1/Emi2 is essential for Xenopus early embryonic divisions.
Mitotic divisions result from the oscillating activity of cyclin-dependent kinase 1 (Cdk1). Cdk1 activity is terminated by the anaphase-promoting complex/cyclosome (APC/C), a ubiquitin ligase that targets cyclin B for destruction. In somatic divisions, the early mitotic inhibitor 1 (Emi1) and the spindle assembly checkpoint (SAC) regulate cell cycle progression by inhibiting the APC/C. Early em...
متن کاملCadherin expression by embryonic divisions and derived gray matter structures in the telencephalon of the chicken.
The expression of three cadherins (cadherin-6B, cadherin-7, and R-cadherin) was studied by immunohistochemistry in the telencephalon of chicken embryos at intermediate stages of development (11 and 15 days of incubation). Expression patterns were related to cytoarchitecture and to previously published data on functional connections and on the expression of gene regulatory proteins. Our results ...
متن کاملDrosophila Hey is a target of Notch in asymmetric divisions during embryonic and larval neurogenesis.
bHLH-O proteins are a subfamily of the basic-helix-loop-helix transcription factors characterized by an 'Orange' protein-protein interaction domain. Typical members are the Hairy/E(spl), or Hes, proteins, well studied in their ability, among others, to suppress neuronal differentiation in both invertebrates and vertebrates. Hes proteins are often effectors of Notch signalling. In vertebrates, a...
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ژورنال
عنوان ژورنال: Current Biology
سال: 2008
ISSN: 0960-9822
DOI: 10.1016/j.cub.2008.04.001