首页 > 最新文献

Cell stem cell最新文献

英文 中文
Decoding the temporal and regional specification of microglia in the developing human brain. 解码发育中的人脑中小胶质细胞的时间和区域特征。
Pub Date : 2022-02-17 DOI: 10.1016/j.stem.2022.02.004
Yanxin Li, Zhongqiu Li, Min Yang, Feiyang Wang, Yue Zhang, R. Li, Qian Li, Yunxia Gong, Binhong Wang, Baoguang Fan, Chunyue Wang, Lei Chen, Hong Li, Jennie Ong, Zhaoqian Teng, Lei Jin, Yan-Ling Wang, Peng Du, Jianwei Jiao
{"title":"Decoding the temporal and regional specification of microglia in the developing human brain.","authors":"Yanxin Li, Zhongqiu Li, Min Yang, Feiyang Wang, Yue Zhang, R. Li, Qian Li, Yunxia Gong, Binhong Wang, Baoguang Fan, Chunyue Wang, Lei Chen, Hong Li, Jennie Ong, Zhaoqian Teng, Lei Jin, Yan-Ling Wang, Peng Du, Jianwei Jiao","doi":"10.1016/j.stem.2022.02.004","DOIUrl":"https://doi.org/10.1016/j.stem.2022.02.004","url":null,"abstract":"","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49132148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 17
Recapitulation of endogenous 4R tau expression and formation of insoluble tau in directly reprogrammed human neurons. 在直接重编程的人类神经元中再现内源性4R tau表达和不溶性tau的形成。
Pub Date : 2021-08-04 DOI: 10.2139/ssrn.3899434
Lucia Capano, C. Sato, E. Ficulle, A. Yu, Kanta Horie, Ji-Sun Kwon, Kyle F. Burbach, Nicolas R. Barthélemy, Susan G. Fox, C. Karch, R. Bateman, H. Houlden, R. Morimoto, D. Holtzman, K. Duff, A. Yoo
Tau is a microtubule-binding protein expressed in neurons, and the equal ratios between 4-repeat (4R) and 3-repeat (3R) isoforms are maintained in normal adult brain function. Dysregulation of 3R:4R ratio causes tauopathy, and human neurons that recapitulate tau isoforms in health and disease will provide a platform for elucidating pathogenic processes involving tau pathology. We carried out extensive characterizations of tau isoforms expressed in human neurons derived by microRNA-induced neuronal reprogramming of adult fibroblasts. Transcript and protein analyses showed that miR neurons expressed all six isoforms with the 3R:4R isoform ratio equivalent to that detected in human adult brains. Also, miR neurons derived from familial tauopathy patients with a 3R:4R ratio altering mutation showed increased 4R tau and the formation of insoluble tau with seeding activity. Our results collectively demonstrate the utility of miRNA-induced neuronal reprogramming to recapitulate endogenous tau regulation comparable with the adult brain in health and disease.
Tau是一种在神经元中表达的微管结合蛋白,在正常成人脑功能中,4-repeat (4R)和3-repeat (3R)亚型的比例是相等的。3R:4R比例失调导致tau病变,人类神经元在健康和疾病中概括tau亚型,将为阐明涉及tau病理学的致病过程提供一个平台。我们对成人成纤维细胞的微rna诱导的神经元重编程衍生的人类神经元中表达的tau亚型进行了广泛的表征。转录物和蛋白质分析显示miR神经元表达所有6种亚型,其3R:4R亚型的比例与成人大脑中检测到的相同。此外,来自3R:4R比例改变突变的家族性tau病患者的miR神经元显示4R tau增加,并形成具有播种活性的不溶性tau。我们的研究结果共同证明了mirna诱导的神经元重编程在概括内源性tau调节方面的作用,与成人大脑在健康和疾病方面的作用相当。
{"title":"Recapitulation of endogenous 4R tau expression and formation of insoluble tau in directly reprogrammed human neurons.","authors":"Lucia Capano, C. Sato, E. Ficulle, A. Yu, Kanta Horie, Ji-Sun Kwon, Kyle F. Burbach, Nicolas R. Barthélemy, Susan G. Fox, C. Karch, R. Bateman, H. Houlden, R. Morimoto, D. Holtzman, K. Duff, A. Yoo","doi":"10.2139/ssrn.3899434","DOIUrl":"https://doi.org/10.2139/ssrn.3899434","url":null,"abstract":"Tau is a microtubule-binding protein expressed in neurons, and the equal ratios between 4-repeat (4R) and 3-repeat (3R) isoforms are maintained in normal adult brain function. Dysregulation of 3R:4R ratio causes tauopathy, and human neurons that recapitulate tau isoforms in health and disease will provide a platform for elucidating pathogenic processes involving tau pathology. We carried out extensive characterizations of tau isoforms expressed in human neurons derived by microRNA-induced neuronal reprogramming of adult fibroblasts. Transcript and protein analyses showed that miR neurons expressed all six isoforms with the 3R:4R isoform ratio equivalent to that detected in human adult brains. Also, miR neurons derived from familial tauopathy patients with a 3R:4R ratio altering mutation showed increased 4R tau and the formation of insoluble tau with seeding activity. Our results collectively demonstrate the utility of miRNA-induced neuronal reprogramming to recapitulate endogenous tau regulation comparable with the adult brain in health and disease.","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43600359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Relayed signaling between mesenchymal progenitors and muscle stem cells ensures adaptive stem cell response to increased mechanical load. 间充质祖细胞和肌肉干细胞之间的传递信号确保了干细胞对增加的机械负荷的适应性反应。
Pub Date : 2021-03-30 DOI: 10.2139/ssrn.3815989
Akihiro Kaneshige, Takayuki Kaji, Lidan Zhang, Hayato Saito, Ayasa Nakamura, Tamaki Kurosawa, M. Ikemoto-Uezumi, K. Tsujikawa, S. Seno, M. Hori, Y. Saito, T. Matozaki, Kazumitsu Maehara, Y. Ohkawa, M. Potente, Shuichi Watanabe, T. Braun, A. Uezumi, S. Fukada
Adaptation to mechanical load, leading to enhanced force and power output, is a characteristic feature of skeletal muscle. Formation of new myonuclei required for efficient muscle hypertrophy relies on prior activation and proliferation of muscle stem cells (MuSCs). However, the mechanisms controlling MuSC expansion under conditions of increased load are not fully understood. Here we demonstrate that interstitial mesenchymal progenitors respond to mechanical load and stimulate MuSC proliferation in a surgical mouse model of increased muscle load. Mechanistically, transcriptional activation of Yes-associated protein 1 (Yap1)/transcriptional coactivator with PDZ-binding motif (Taz) in mesenchymal progenitors results in local production of thrombospondin-1 (Thbs1), which, in turn, drives MuSC proliferation through CD47 signaling. Under homeostatic conditions, however, CD47 signaling is insufficient to promote MuSC proliferation and instead depends on prior downregulation of the Calcitonin receptor. Our results suggest that relayed signaling between mesenchymal progenitors and MuSCs through a Yap1/Taz-Thbs1-CD47 pathway is critical to establish the supply of MuSCs during muscle hypertrophy.
骨骼肌的一个特征是适应机械负荷,从而增强力量和功率输出。有效肌肉肥大所需的新肌细胞核的形成依赖于肌肉干细胞(MuSC)的先前激活和增殖。然而,在增加负载的条件下控制MuSC膨胀的机制还没有完全理解。在肌肉负荷增加的手术小鼠模型中,我们证明间质间充质祖细胞对机械负荷有反应并刺激MuSC增殖。从机制上讲,间充质祖细胞中Yes相关蛋白1(Yap1)/具有PDZ结合基序的转录共激活因子(Taz)的转录激活导致血小板反应蛋白1(Thbs1)的局部产生,进而通过CD47信号驱动MuSC增殖。然而,在稳态条件下,CD47信号传导不足以促进MuSC增殖,而是依赖于降钙素受体的先前下调。我们的研究结果表明,间充质祖细胞和MuSC之间通过Yap1/Taz-Thbs1-CD47途径的中继信号传导对于在肌肉肥大期间建立MuSC的供应至关重要。
{"title":"Relayed signaling between mesenchymal progenitors and muscle stem cells ensures adaptive stem cell response to increased mechanical load.","authors":"Akihiro Kaneshige, Takayuki Kaji, Lidan Zhang, Hayato Saito, Ayasa Nakamura, Tamaki Kurosawa, M. Ikemoto-Uezumi, K. Tsujikawa, S. Seno, M. Hori, Y. Saito, T. Matozaki, Kazumitsu Maehara, Y. Ohkawa, M. Potente, Shuichi Watanabe, T. Braun, A. Uezumi, S. Fukada","doi":"10.2139/ssrn.3815989","DOIUrl":"https://doi.org/10.2139/ssrn.3815989","url":null,"abstract":"Adaptation to mechanical load, leading to enhanced force and power output, is a characteristic feature of skeletal muscle. Formation of new myonuclei required for efficient muscle hypertrophy relies on prior activation and proliferation of muscle stem cells (MuSCs). However, the mechanisms controlling MuSC expansion under conditions of increased load are not fully understood. Here we demonstrate that interstitial mesenchymal progenitors respond to mechanical load and stimulate MuSC proliferation in a surgical mouse model of increased muscle load. Mechanistically, transcriptional activation of Yes-associated protein 1 (Yap1)/transcriptional coactivator with PDZ-binding motif (Taz) in mesenchymal progenitors results in local production of thrombospondin-1 (Thbs1), which, in turn, drives MuSC proliferation through CD47 signaling. Under homeostatic conditions, however, CD47 signaling is insufficient to promote MuSC proliferation and instead depends on prior downregulation of the Calcitonin receptor. Our results suggest that relayed signaling between mesenchymal progenitors and MuSCs through a Yap1/Taz-Thbs1-CD47 pathway is critical to establish the supply of MuSCs during muscle hypertrophy.","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45561212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 21
Genomic structure predicts metabolite dynamics in microbial communities 基因组结构预测微生物群落的代谢物动态
Pub Date : 2020-09-30 DOI: 10.1101/2020.09.29.315713
K. Gowda, Derek Ping, Madhav Mani, S. Kuehn
The metabolic function of microbial communities has played a defining role in the evolution and persistence of life on Earth, driving redox reactions that form the basis of global biogeochemical cycles. Community metabolism emerges from a hierarchy of processes including gene expression, ecological interactions, and environmental factors. In wild communities, gene content is correlated with environmental context, but predicting metabolic dynamics from genomic structure remains elusive. Here we show, for the process of denitrification, that community metabolism is predictable from the genes each member of the community possesses. Machine learning reveals a sparse and generalizable mapping from gene content to metabolite dynamics across a genomically-diverse library of bacteria. A consumer-resource model correctly predicts community metabolism from single-strain phenotypes. Our results demonstrate that the conserved impacts of metabolic genes can predict community function, enabling the prediction of metabolite dynamics from metagenomes, designing denitrifying communities, and discovering how genome evolution impacts metabolism.
微生物群落的代谢功能在地球上生命的进化和持续中发挥了决定性的作用,推动了形成全球生物地球化学循环基础的氧化还原反应。群落代谢过程包括基因表达、生态相互作用和环境因素。在野生群落中,基因含量与环境相关,但从基因组结构预测代谢动力学仍然难以捉摸。在这里,我们表明,对于反硝化过程,群落代谢是可预测的基因,每个成员的群落拥有。机器学习揭示了细菌基因组多样性文库中从基因内容到代谢物动态的稀疏和可推广的映射。消费者资源模型正确地预测了单一菌株表型的群落代谢。我们的研究结果表明,代谢基因的保守影响可以预测群落功能,从而可以预测来自宏基因组的代谢物动力学,设计反硝化群落,并发现基因组进化如何影响代谢。
{"title":"Genomic structure predicts metabolite dynamics in microbial communities","authors":"K. Gowda, Derek Ping, Madhav Mani, S. Kuehn","doi":"10.1101/2020.09.29.315713","DOIUrl":"https://doi.org/10.1101/2020.09.29.315713","url":null,"abstract":"The metabolic function of microbial communities has played a defining role in the evolution and persistence of life on Earth, driving redox reactions that form the basis of global biogeochemical cycles. Community metabolism emerges from a hierarchy of processes including gene expression, ecological interactions, and environmental factors. In wild communities, gene content is correlated with environmental context, but predicting metabolic dynamics from genomic structure remains elusive. Here we show, for the process of denitrification, that community metabolism is predictable from the genes each member of the community possesses. Machine learning reveals a sparse and generalizable mapping from gene content to metabolite dynamics across a genomically-diverse library of bacteria. A consumer-resource model correctly predicts community metabolism from single-strain phenotypes. Our results demonstrate that the conserved impacts of metabolic genes can predict community function, enabling the prediction of metabolite dynamics from metagenomes, designing denitrifying communities, and discovering how genome evolution impacts metabolism.","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86608485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 43
Deconstructing Stepwise Fate Conversion of Human Fibroblasts to Neurons by MicroRNAs. 通过微小RNA解构人类成纤维细胞向神经元的逐步命运转化。
Pub Date : 2020-09-17 DOI: 10.2139/ssrn.3485473
Kitra Cates, M. McCoy, J. Kwon, Yangjian Liu, Daniel G. Abernathy, Bo Zhang, Shaopeng Liu, P. Gontarz, W. K. Kim, Shawei Chen, Wenjun Kong, Joshua N. Ho, Kyle F. Burbach, Harrison W. Gabel, Samantha A. Morris, A. Yoo
Cell-fate conversion generally requires reprogramming effectors to both introduce fate programs of the target cell type and erase the identity of starting cell population. Here, we reveal insights into the activity of microRNAs miR-9/9∗ and miR-124 (miR-9/9∗-124) as reprogramming agents that orchestrate direct conversion of human fibroblasts into motor neurons by first eradicating fibroblast identity and promoting uniform transition to a neuronal state in sequence. We identify KLF-family transcription factors as direct target genes for miR-9/9∗-124 and show their repression is critical for erasing fibroblast fate. Subsequent gain of neuronal identity requires upregulation of a small nuclear RNA, RN7SK, which induces accessibilities of chromatin regions and neuronal gene activation to push cells to a neuronal state. Our study defines deterministic components in the microRNA-mediated reprogramming cascade.
细胞命运转换通常需要重编程效应器来引入靶细胞类型的命运程序并消除起始细胞群体的身份。在这里,我们揭示了微小RNA miR-9/9*和miR-124(miR-9/9*-124)作为重编程剂的活性,它们通过首先消除成纤维细胞的身份并促进序列中向神经元状态的均匀过渡,来协调人类成纤维细胞向运动神经元的直接转化。我们确定KLF家族转录因子是miR-9/9*-124的直接靶基因,并表明它们的抑制对消除成纤维细胞的命运至关重要。随后获得神经元身份需要上调小核RNA RN7SK,其诱导染色质区域的可及性和神经元基因激活,以将细胞推向神经元状态。我们的研究定义了微小RNA介导的重编程级联中的确定性成分。
{"title":"Deconstructing Stepwise Fate Conversion of Human Fibroblasts to Neurons by MicroRNAs.","authors":"Kitra Cates, M. McCoy, J. Kwon, Yangjian Liu, Daniel G. Abernathy, Bo Zhang, Shaopeng Liu, P. Gontarz, W. K. Kim, Shawei Chen, Wenjun Kong, Joshua N. Ho, Kyle F. Burbach, Harrison W. Gabel, Samantha A. Morris, A. Yoo","doi":"10.2139/ssrn.3485473","DOIUrl":"https://doi.org/10.2139/ssrn.3485473","url":null,"abstract":"Cell-fate conversion generally requires reprogramming effectors to both introduce fate programs of the target cell type and erase the identity of starting cell population. Here, we reveal insights into the activity of microRNAs miR-9/9∗ and miR-124 (miR-9/9∗-124) as reprogramming agents that orchestrate direct conversion of human fibroblasts into motor neurons by first eradicating fibroblast identity and promoting uniform transition to a neuronal state in sequence. We identify KLF-family transcription factors as direct target genes for miR-9/9∗-124 and show their repression is critical for erasing fibroblast fate. Subsequent gain of neuronal identity requires upregulation of a small nuclear RNA, RN7SK, which induces accessibilities of chromatin regions and neuronal gene activation to push cells to a neuronal state. Our study defines deterministic components in the microRNA-mediated reprogramming cascade.","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48548224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 28
Capture of Mouse and Human Stem Cells with Features of Formative Pluripotency 具有形成性多能性特征的小鼠和人干细胞的捕获
Pub Date : 2020-09-04 DOI: 10.1101/2020.09.04.283218
Masaki Kinoshita, Michael Barber, William Mansfield, Yingzhi Cui, D. Spindlow, G. Stirparo, S. Dietmann, J. Nichols, Austin G Smith
Pluripotent cells emerge via a naïve founder population in the blastocyst, acquire capacity for germline and soma formation, and then undergo lineage priming. Mouse embryonic stem (ES) cells and epiblast stem cells (EpiSCs) represent the initial naïve and final primed phases of pluripotency, respectively. Here we investigate the intermediate formative stage. Using minimal exposure to specification cues, we expand stem cells from formative mouse epiblast. Unlike ES cells or EpiSCs, formative stem (FS) cells respond directly to germ cell induction. They colonise chimaeras including the germline. Transcriptome analyses show retained pre-gastrulation epiblast identity. Gain of signal responsiveness and chromatin accessibility relative to ES cells reflect lineage capacitation. FS cells show distinct transcription factor dependencies from EpiSCs, relying critically on Otx2. Finally, FS cell culture conditions applied to human naïve cells or embryos support expansion of similar stem cells, consistent with a conserved attractor state on the trajectory of mammalian pluripotency.
多能干细胞通过胚泡中天真的创始人群体出现,获得种系和胞体形成的能力,然后进行谱系启动。小鼠胚胎干细胞(ES)和成表干细胞(EpiSC)分别代表多能性的初始幼稚期和最终启动期。在这里我们研究中间形成阶段。使用最小限度的暴露于特定线索,我们从形成性小鼠表皮母细胞中扩增干细胞。与ES细胞或表观干细胞不同,形成性干细胞直接对生殖细胞诱导作出反应。它们在包括种系在内的嵌合体中定植。转录组分析显示保留了原肠胚形成前表皮母细胞的特性。相对于ES细胞,信号反应性和染色质可及性的增加反映了谱系获能。FS细胞表现出与EpiSC不同的转录因子依赖性,严重依赖Otx2。最后,应用于人类幼稚细胞或胚胎的FS细胞培养条件支持类似干细胞的扩增,这与哺乳动物多能性轨迹上的保守吸引子状态一致。
{"title":"Capture of Mouse and Human Stem Cells with Features of Formative Pluripotency","authors":"Masaki Kinoshita, Michael Barber, William Mansfield, Yingzhi Cui, D. Spindlow, G. Stirparo, S. Dietmann, J. Nichols, Austin G Smith","doi":"10.1101/2020.09.04.283218","DOIUrl":"https://doi.org/10.1101/2020.09.04.283218","url":null,"abstract":"Pluripotent cells emerge via a naïve founder population in the blastocyst, acquire capacity for germline and soma formation, and then undergo lineage priming. Mouse embryonic stem (ES) cells and epiblast stem cells (EpiSCs) represent the initial naïve and final primed phases of pluripotency, respectively. Here we investigate the intermediate formative stage. Using minimal exposure to specification cues, we expand stem cells from formative mouse epiblast. Unlike ES cells or EpiSCs, formative stem (FS) cells respond directly to germ cell induction. They colonise chimaeras including the germline. Transcriptome analyses show retained pre-gastrulation epiblast identity. Gain of signal responsiveness and chromatin accessibility relative to ES cells reflect lineage capacitation. FS cells show distinct transcription factor dependencies from EpiSCs, relying critically on Otx2. Finally, FS cell culture conditions applied to human naïve cells or embryos support expansion of similar stem cells, consistent with a conserved attractor state on the trajectory of mammalian pluripotency.","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43946090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 123
Stem Cell Research Responds to COVID-19: Deepak Srivastava, Fiona Watt, and George Daley 干细胞研究应对COVID-19: Deepak Srivastava, Fiona Watt和George Daley
Pub Date : 2020-06-01 DOI: 10.1016/j.stem.2020.05.012
Anonymous
{"title":"Stem Cell Research Responds to COVID-19: Deepak Srivastava, Fiona Watt, and George Daley","authors":"Anonymous","doi":"10.1016/j.stem.2020.05.012","DOIUrl":"https://doi.org/10.1016/j.stem.2020.05.012","url":null,"abstract":"","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.stem.2020.05.012","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41376188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Transition from Quiescent to Activated States in Human Hematopoietic Stem Cells Is Governed by Dynamic 3D Genome Reorganization. 人类造血干细胞从静止状态到激活状态的转变由动态三维基因组重组控制。
Pub Date : 2020-06-01 DOI: 10.2139/ssrn.3611286
N. Takayama, Alex Murison, Shin-ichiro Takayanagi, C. Arlidge, Stanley Zhou, Laura Garcia-Prat, Michelle A. Chan-Seng-Yue, Sasan Zandi, O. Gan, Helena Boutzen, K. Kaufmann, Aaron C Trotman-Grant, E. Schoof, Ken J. Kron, Noelia Díaz, John J. Y. Lee, T. Medina, D. D. De Carvalho, Michael D. Taylor, Juan M. Vaquerizas, Stephanie Z. Xie, J. Dick, M. Lupien
Lifelong blood production requires long-term hematopoietic stem cells (LT-HSCs), marked by stemness states involving quiescence and self-renewal, to transition into activated short-term HSCs (ST-HSCs) with reduced stemness. As few transcriptional changes underlie this transition, we used single-cell and bulk assay for transposase-accessible chromatin sequencing (ATAC-seq) on human HSCs and hematopoietic stem and progenitor cell (HSPC) subsets to uncover chromatin accessibility signatures, one including LT-HSCs (LT/HSPC signature) and another excluding LT-HSCs (activated HSPC [Act/HSPC] signature). These signatures inversely correlated during early hematopoietic commitment and differentiation. The Act/HSPC signature contains CCCTC-binding factor (CTCF) binding sites mediating 351 chromatin interactions engaged in ST-HSCs, but not LT-HSCs, enclosing multiple stemness pathway genes active in LT-HSCs and repressed in ST-HSCs. CTCF silencing derepressed stemness genes, restraining quiescent LT-HSCs from transitioning to activated ST-HSCs. Hence, 3D chromatin interactions centrally mediated by CTCF endow a gatekeeper function that governs the earliest fate transitions HSCs make by coordinating disparate stemness pathways linked to quiescence and self-renewal.
终身造血需要长期造血干细胞(LT-HSCs),以包括静止和自我更新的干性状态为标志,转变为干性降低的活化短期造血干细胞。由于很少有转录变化是这种转变的基础,我们使用单细胞和批量分析法对人HSC和造血干细胞和祖细胞(HSPC)亚群进行转座酶可及染色质测序(ATAC-seq),以揭示染色质可及性特征,一个包括LT-HSC(LT/HSPC特征),另一个不包括LT-HSCs(激活的HSPC[Act/HSPC]特征)。这些特征在早期造血承诺和分化过程中呈负相关。Act/HSPC信号包含CCCTC结合因子(CTCF)结合位点,介导351个染色质相互作用,参与ST HSC,但不参与LT HSC,包含在LT HSC中活跃并在ST HSC中被抑制的多个干性途径基因。CTCF沉默去压缩的干性基因,抑制静止的LT HSC向活化的ST HSC过渡。因此,CTCF集中介导的3D染色质相互作用赋予了一种守门人功能,通过协调与静止和自我更新相关的不同干性途径来控制HSC最早的命运转变。
{"title":"The Transition from Quiescent to Activated States in Human Hematopoietic Stem Cells Is Governed by Dynamic 3D Genome Reorganization.","authors":"N. Takayama, Alex Murison, Shin-ichiro Takayanagi, C. Arlidge, Stanley Zhou, Laura Garcia-Prat, Michelle A. Chan-Seng-Yue, Sasan Zandi, O. Gan, Helena Boutzen, K. Kaufmann, Aaron C Trotman-Grant, E. Schoof, Ken J. Kron, Noelia Díaz, John J. Y. Lee, T. Medina, D. D. De Carvalho, Michael D. Taylor, Juan M. Vaquerizas, Stephanie Z. Xie, J. Dick, M. Lupien","doi":"10.2139/ssrn.3611286","DOIUrl":"https://doi.org/10.2139/ssrn.3611286","url":null,"abstract":"Lifelong blood production requires long-term hematopoietic stem cells (LT-HSCs), marked by stemness states involving quiescence and self-renewal, to transition into activated short-term HSCs (ST-HSCs) with reduced stemness. As few transcriptional changes underlie this transition, we used single-cell and bulk assay for transposase-accessible chromatin sequencing (ATAC-seq) on human HSCs and hematopoietic stem and progenitor cell (HSPC) subsets to uncover chromatin accessibility signatures, one including LT-HSCs (LT/HSPC signature) and another excluding LT-HSCs (activated HSPC [Act/HSPC] signature). These signatures inversely correlated during early hematopoietic commitment and differentiation. The Act/HSPC signature contains CCCTC-binding factor (CTCF) binding sites mediating 351 chromatin interactions engaged in ST-HSCs, but not LT-HSCs, enclosing multiple stemness pathway genes active in LT-HSCs and repressed in ST-HSCs. CTCF silencing derepressed stemness genes, restraining quiescent LT-HSCs from transitioning to activated ST-HSCs. Hence, 3D chromatin interactions centrally mediated by CTCF endow a gatekeeper function that governs the earliest fate transitions HSCs make by coordinating disparate stemness pathways linked to quiescence and self-renewal.","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2020-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49531655","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 41
Gene Editing Expands the Donor Pool for CCR5-Negative Stem Cell Transplants. 基因编辑扩大了ccr5阴性干细胞移植的供体库。
Pub Date : 2019-12-05 DOI: 10.1016/j.stem.2019.11.006
P. Cannon
{"title":"Gene Editing Expands the Donor Pool for CCR5-Negative Stem Cell Transplants.","authors":"P. Cannon","doi":"10.1016/j.stem.2019.11.006","DOIUrl":"https://doi.org/10.1016/j.stem.2019.11.006","url":null,"abstract":"","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.stem.2019.11.006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44933744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Sensing the Environment: Extracellular Lactate Levels Control Adult Neurogenesis. 感知环境:细胞外乳酸水平控制成人神经发生。
Pub Date : 2019-12-05 DOI: 10.1016/j.stem.2019.11.008
Valentina Scandella, M. Knobloch
{"title":"Sensing the Environment: Extracellular Lactate Levels Control Adult Neurogenesis.","authors":"Valentina Scandella, M. Knobloch","doi":"10.1016/j.stem.2019.11.008","DOIUrl":"https://doi.org/10.1016/j.stem.2019.11.008","url":null,"abstract":"","PeriodicalId":93928,"journal":{"name":"Cell stem cell","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.stem.2019.11.008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43089920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 13
期刊
Cell stem cell
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
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
×
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
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