利用细胞术技术研究干细胞生物学

H. Nakauchi
{"title":"利用细胞术技术研究干细胞生物学","authors":"H. Nakauchi","doi":"10.1109/MHS.2009.5352042","DOIUrl":null,"url":null,"abstract":"Hematopoietic stem cells (HSCs) are best-studied stem cells and they have contributed a great deal for the development of stem cell biology. HSCs reside in a bone marrow niche in a non-dividing state from which they occasionally are aroused to undergo cell division. Using highly purified HSCs by flow cytometry, we have recently shown that cytokine treatment of HSCs led to polarization of the lipid raft marker GM1 ganglioside as well as to phosphorylation of Akt and relocation of FOXO3a to the cytoplasm. Lipid raft clustering induced by cytokines is essential for HSC re-entry into the cell cycle. Furthermore, based on a hypothesis that signals from the niche inhibit LRC and induce hibernation in HSCs, we screened candidate niche signals for inhibition of LRC. Among niche signals examined, transforming growth factor-β (TGF-β) efficiently inhibits LRC and induces p57Kip2 expression, leading to HSC hibernation ex vivo. These data establish the role of TGF-β as a niche signal in control of HSC hibernation and provide important clues to identify stem cell niche in bone marrow.","PeriodicalId":344667,"journal":{"name":"2009 International Symposium on Micro-NanoMechatronics and Human Science","volume":"35 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Use of cytometry technology for the study of stem cell biology\",\"authors\":\"H. Nakauchi\",\"doi\":\"10.1109/MHS.2009.5352042\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Hematopoietic stem cells (HSCs) are best-studied stem cells and they have contributed a great deal for the development of stem cell biology. HSCs reside in a bone marrow niche in a non-dividing state from which they occasionally are aroused to undergo cell division. Using highly purified HSCs by flow cytometry, we have recently shown that cytokine treatment of HSCs led to polarization of the lipid raft marker GM1 ganglioside as well as to phosphorylation of Akt and relocation of FOXO3a to the cytoplasm. Lipid raft clustering induced by cytokines is essential for HSC re-entry into the cell cycle. Furthermore, based on a hypothesis that signals from the niche inhibit LRC and induce hibernation in HSCs, we screened candidate niche signals for inhibition of LRC. Among niche signals examined, transforming growth factor-β (TGF-β) efficiently inhibits LRC and induces p57Kip2 expression, leading to HSC hibernation ex vivo. These data establish the role of TGF-β as a niche signal in control of HSC hibernation and provide important clues to identify stem cell niche in bone marrow.\",\"PeriodicalId\":344667,\"journal\":{\"name\":\"2009 International Symposium on Micro-NanoMechatronics and Human Science\",\"volume\":\"35 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2009-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2009 International Symposium on Micro-NanoMechatronics and Human Science\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MHS.2009.5352042\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 International Symposium on Micro-NanoMechatronics and Human Science","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MHS.2009.5352042","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0

摘要

造血干细胞(Hematopoietic stem cells, hsc)是目前研究最多的干细胞,为干细胞生物学的发展做出了巨大贡献。造血干细胞以非分裂状态存在于骨髓壁龛中,偶尔会被唤醒进行细胞分裂。通过流式细胞术使用高度纯化的造血干细胞,我们最近发现细胞因子处理造血干细胞导致脂筏标记物GM1神经节苷脂的极化以及Akt的磷酸化和FOXO3a向细胞质的转移。细胞因子诱导的脂筏聚集是HSC重新进入细胞周期的必要条件。此外,基于来自生态位信号抑制LRC并诱导hsc冬眠的假设,我们筛选了抑制LRC的候选生态位信号。在检测的生态位信号中,转化生长因子-β (TGF-β)有效抑制LRC并诱导p57Kip2表达,导致HSC在体外冬眠。这些数据确立了TGF-β作为一个生态位信号在控制HSC冬眠中的作用,为鉴定骨髓干细胞生态位提供了重要线索。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
Use of cytometry technology for the study of stem cell biology
Hematopoietic stem cells (HSCs) are best-studied stem cells and they have contributed a great deal for the development of stem cell biology. HSCs reside in a bone marrow niche in a non-dividing state from which they occasionally are aroused to undergo cell division. Using highly purified HSCs by flow cytometry, we have recently shown that cytokine treatment of HSCs led to polarization of the lipid raft marker GM1 ganglioside as well as to phosphorylation of Akt and relocation of FOXO3a to the cytoplasm. Lipid raft clustering induced by cytokines is essential for HSC re-entry into the cell cycle. Furthermore, based on a hypothesis that signals from the niche inhibit LRC and induce hibernation in HSCs, we screened candidate niche signals for inhibition of LRC. Among niche signals examined, transforming growth factor-β (TGF-β) efficiently inhibits LRC and induces p57Kip2 expression, leading to HSC hibernation ex vivo. These data establish the role of TGF-β as a niche signal in control of HSC hibernation and provide important clues to identify stem cell niche in bone marrow.
求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
自引率
0.00%
发文量
0
期刊最新文献
Mesoscale-object handling by temperature modulation of surface stresses Three dimensional bipedal walking locomotion using dynamic passivization of joint control Wheelchair driving control with sway suppression of passenger's posture and evaluation of comfortable ride by emotional sweating Risk management system based on uncertainty estimation by multi-agent Functional shRNA expression system with reduced off-target effects
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1