期刊
MOLECULAR AND CELLULAR ENDOCRINOLOGY
卷 358, 期 1, 页码 116-126出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.mce.2012.03.012
关键词
Microarray; Gene expression; Transcription factors; Hypothalamus; Development; NPY neuron
资金
- Canadian Institutes for Health Research (CIHR)
- Canadian Diabetes Association (CDA)
- Canada Foundation for Innovation (CFI)
- Canada Research Chairs (CRC)
- Santalo Studentship
Few studies have utilized microarray analysis to understand the genome wide changes involved in the development of the hypothalamus despite its overall importance to basic physiology. Gene expression profiling of immortalized, clonal hypothalamic neurons, embryonic-derived mHypoE-46 and adult-derived mHypoA-2/12, reveals that the expression of 1225 probes was significantly changed between the two neuronal models. Further comparison of the gene expression profiles identified two categories of genes that were confirmed with qRT-PCR: (i) genes implicated in the Wnt signaling pathway; and (ii) transcription factors previously implicated in the development of the central nervous system. Yet, functional analysis of the two cell lines, including hormonal responses and secretion, indicate that they are comparable despite their developmental origin. This study provides a comprehensive analysis of embryonic- and adult-derived hypothalamic neuronal cell models that both express neuropeptide Y, and identifies novel genes as candidates for mediating the development of specific hypothalamic neurons. (c) 2012 Elsevier Ireland Ltd. All rights reserved.
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