Christine E Campbell, Karstin Webber, Jonathan E Bard, Lee D Chaves, Jason M Osinski, Richard M Gronostajski
{"title":"核因子I A(Nfia)和核因子I B(Nfib)是小鼠出生后神经干细胞自我更新的共同需要。","authors":"Christine E Campbell, Karstin Webber, Jonathan E Bard, Lee D Chaves, Jason M Osinski, Richard M Gronostajski","doi":"10.1089/scd.2022.0204","DOIUrl":null,"url":null,"abstract":"<p><p>Mouse postnatal neural stem cells (pNSCs) can be expanded in vitro in the presence of epidermal growth factor and fibroblast growth factor 2 and upon removal of these factors cease proliferation and generate neurons, astrocytes, and oligodendrocytes. The genetic requirements for self-renewal and lineage-commitment of pNSCs are incompletely understood. In this study, we show that the transcription factors NFIA and NFIB, previously shown individually, to be essential for the normal commitment of pNSCs to the astrocytic lineage in vivo, are jointly required for normal self-renewal of pNSCs in vitro and in vivo. Using conditional knockout alleles of <i>Nfia</i> and <i>Nfib</i>, we show that the simultaneous loss of these two genes under self-renewal conditions in vitro reduces the expression of the proliferation markers PCNA and Ki67, eliminates clonogenicity of the cells, reduces the number of cells in S phase, and induces aberrant differentiation primarily into the neuroblast lineage. This phenotype requires the loss of both genes and is not seen upon loss of <i>Nfia</i> or <i>Nfib</i> alone, nor with combined loss of <i>Nfia</i> and <i>Nfix</i> or <i>Nfib</i> and <i>Nfix</i>. These data demonstrate a unique combined requirement for both <i>Nfia</i> and <i>Nfib</i> for pNSC self-renewal.</p>","PeriodicalId":94214,"journal":{"name":"Stem cells and development","volume":" ","pages":"153-167"},"PeriodicalIF":0.0000,"publicationDate":"2024-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Nuclear Factor I A and Nuclear Factor I B Are Jointly Required for Mouse Postnatal Neural Stem Cell Self-Renewal.\",\"authors\":\"Christine E Campbell, Karstin Webber, Jonathan E Bard, Lee D Chaves, Jason M Osinski, Richard M Gronostajski\",\"doi\":\"10.1089/scd.2022.0204\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>Mouse postnatal neural stem cells (pNSCs) can be expanded in vitro in the presence of epidermal growth factor and fibroblast growth factor 2 and upon removal of these factors cease proliferation and generate neurons, astrocytes, and oligodendrocytes. The genetic requirements for self-renewal and lineage-commitment of pNSCs are incompletely understood. In this study, we show that the transcription factors NFIA and NFIB, previously shown individually, to be essential for the normal commitment of pNSCs to the astrocytic lineage in vivo, are jointly required for normal self-renewal of pNSCs in vitro and in vivo. Using conditional knockout alleles of <i>Nfia</i> and <i>Nfib</i>, we show that the simultaneous loss of these two genes under self-renewal conditions in vitro reduces the expression of the proliferation markers PCNA and Ki67, eliminates clonogenicity of the cells, reduces the number of cells in S phase, and induces aberrant differentiation primarily into the neuroblast lineage. This phenotype requires the loss of both genes and is not seen upon loss of <i>Nfia</i> or <i>Nfib</i> alone, nor with combined loss of <i>Nfia</i> and <i>Nfix</i> or <i>Nfib</i> and <i>Nfix</i>. These data demonstrate a unique combined requirement for both <i>Nfia</i> and <i>Nfib</i> for pNSC self-renewal.</p>\",\"PeriodicalId\":94214,\"journal\":{\"name\":\"Stem cells and development\",\"volume\":\" \",\"pages\":\"153-167\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-04-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Stem cells and development\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1089/scd.2022.0204\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2024/3/21 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Stem cells and development","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1089/scd.2022.0204","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2024/3/21 0:00:00","PubModel":"Epub","JCR":"","JCRName":"","Score":null,"Total":0}
Nuclear Factor I A and Nuclear Factor I B Are Jointly Required for Mouse Postnatal Neural Stem Cell Self-Renewal.
Mouse postnatal neural stem cells (pNSCs) can be expanded in vitro in the presence of epidermal growth factor and fibroblast growth factor 2 and upon removal of these factors cease proliferation and generate neurons, astrocytes, and oligodendrocytes. The genetic requirements for self-renewal and lineage-commitment of pNSCs are incompletely understood. In this study, we show that the transcription factors NFIA and NFIB, previously shown individually, to be essential for the normal commitment of pNSCs to the astrocytic lineage in vivo, are jointly required for normal self-renewal of pNSCs in vitro and in vivo. Using conditional knockout alleles of Nfia and Nfib, we show that the simultaneous loss of these two genes under self-renewal conditions in vitro reduces the expression of the proliferation markers PCNA and Ki67, eliminates clonogenicity of the cells, reduces the number of cells in S phase, and induces aberrant differentiation primarily into the neuroblast lineage. This phenotype requires the loss of both genes and is not seen upon loss of Nfia or Nfib alone, nor with combined loss of Nfia and Nfix or Nfib and Nfix. These data demonstrate a unique combined requirement for both Nfia and Nfib for pNSC self-renewal.