وجود سلولهای پیش ساز عصبی حساس به هورمون رشد در مغز پستانداران بالغ

Blackmore, Daniel G and Reynolds, Brent A and گل محمدی, محمد قاسم and Large, Beatrice and Aguilar, Roberto M and Haro, Luis and Waters, Michael J and Rietze, Rodney L (1390) وجود سلولهای پیش ساز عصبی حساس به هورمون رشد در مغز پستانداران بالغ. scientific reports ــ 2 (250). شاپا 2045-2322

Text - Published Version

Official URL: http://www.nature.com/srep/2012/120207/srep00250/f...


Growth hormone responsive neural precursor cells reside within the adult mammalian brain

English Abstract

The detection of growth hormone (GH) and its receptor in germinal regions of the mammalian brain prompted our investigation ofGHand its role in the regulation of endogenous neural precursor cell activity. Here we report that the addition of exogenous GH significantly increased the expansion rate in long-term neurosphere cultures derived from wild-type mice, while neurospheres derived fromGHnull mice exhibited a reduced expansion rate. We also detected a doubling in the frequency of large (i.e. stem cell-derived) colonies for up to 120 days following a 7-day intracerebroventricular infusion of GH suggesting the activation of endogenous stem cells. Moreover, gamma irradiation induced the ablation of normally quiescent stem cells in GH-infused mice, resulting in a decline in olfactory bulb neurogenesis. These results suggest that GH activates populations of resident stem and progenitor cells, and therefore may represent a novel therapeutic target for age-related neurodegeneration and associated cognitive decline.

Item Type:Article
زبان سند : انگلیسی
نویسنده مسئول :Daniel G Blackmore
Additional Information:abstract index: Science Citation Index Expanded (ISI BIOSIS Previews- Zoological Record -
کلیدواژه ها (انگلیسی):Neural Precursor Cells - Growth Hormone - Mammalian Brain
Subjects:QS Human Anatomy
WL Nervous system
Divisions:Faculty of Medicine > Department of Basic Sciences > Department of Anatomy
ID Code:3127
Deposited By: Dr Mohammad Gasem Golmohammani
Deposited On:08 Dec 1390 13:41
Last Modified:07 Dec 1402 10:31

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