کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9409437 1613303 2005 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Expression domains suggest cell-cycle independent roles of growth-arrest molecules in the adult brain of the medaka, Oryzias latipes
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی علوم اعصاب سلولی و مولکولی
پیش نمایش صفحه اول مقاله
Expression domains suggest cell-cycle independent roles of growth-arrest molecules in the adult brain of the medaka, Oryzias latipes
چکیده انگلیسی
Teleost fish are unique for their enormous potential to produce new neurons in the adult brain. Nevertheless, the regulation of this adult neurogenesis remains to be characterized. Does it resort to the same molecular mechanisms as those at play in embryonic development? Here, we analyse the expression of the neurogenic gene Ol-DeltaA in the brain of medaka (Oryzias latipes) embryos and adults. To determine the relationships between neurogenic and growth-arrest genes in the adult brain, we compare the expression domains of Ol-DeltaA with those of Ol-KIP and Ol-Gadd45γ, two well-characterized genes involved in cell-cycle arrest and growth inhibition. While it is widely assumed that genes controlling cell-cycle exit show restricted expression domains next to proliferating cells (in the sites of prospective cell differentiation), we observe highly particular expression domains of Ol-KIP and Ol-Gadd45γ not associated to proliferating areas of the adult brain, suggesting locally different and cell-cycle independent roles of these molecules in the adult brain.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research Bulletin - Volume 66, Issues 4–6, 15 September 2005, Pages 426-430
نویسندگان
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