Abstract:
:The identification of the genes regulating neural progenitor cell (NPC) functions is of great importance to developmental neuroscience and neural repair. Previously, we combined genetic subtraction and microarray analysis to identify genes enriched in neural progenitor cultures. Here, we apply a strategy to further stratify the neural progenitor genes. In situ hybridization demonstrates expression in the central nervous system germinal zones of 54 clones so identified, making them highly relevant for study in brain and neural progenitor development. Using microarray analysis we find 73 genes enriched in three neural stem cell (NSC)-containing populations generated under different conditions. We use the custom microarray to identify 38 "stemness" genes, with enriched expression in the three NSC conditions and present in both embryonic stem cells and hematopoietic stem cells. However, comparison of expression profiles from these stem cell populations indicates that while there is shared gene expression, the amount of genetic overlap is no more than what would be expected by chance, indicating that different stem cells have largely different gene expression patterns. Taken together, these studies identify many genes not previously associated with neural progenitor cell biology and also provide a rational scheme for stratification of microarray data for functional analysis.
journal_name
Dev Bioljournal_title
Developmental biologyauthors
Easterday MC,Dougherty JD,Jackson RL,Ou J,Nakano I,Paucar AA,Roobini B,Dianati M,Irvin DK,Weissman IL,Terskikh AV,Geschwind DH,Kornblum HIdoi
10.1016/j.ydbio.2003.09.003subject
Has Abstractpub_date
2003-12-15 00:00:00pages
309-22issue
2eissn
0012-1606issn
1095-564Xpii
S0012160603005232journal_volume
264pub_type
杂志文章abstract::Previous studies from this laboratory (M. Bronner-Fraser (1985). J. Cell Biol. 101, 610) have demonstrated that an antibody to a cell surface receptor complex caused alterations in avian neural crest cell migration. Here, these observations are extended to examine the distribution and persistency of injected antibody,...
journal_title:Developmental biology
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