检索结果-南通市图书馆

Recent updates on the biological basis of heterogeneity in bone marrow stromal cells/ skeletal stem cells

Biomaterials Translational 2022年第1期3卷 3-16页

作者： Deepika Arora pamela gehron robey National Institute of Dental and Craniofacial Research National Institutes of HealthDepartment of Health and Human ServicesBethesdaMDUSA Biosystems and Biomaterials Division National Institute of Standards and TechnologyDepartment of CommerceGaithersburgMDUSA Department of Biotechnology School of Biological Engineering&Life SciencesShobhit Institute of Engineering&Technology(Deemed-to-be-University)MeerutIndia

Based on studies over the last several decades,the self-renewing skeletal lineages derived from bone marrow stroma could be an ideal source for skeletal tissue ***,the markers for osteogenic precursors;i.e.,bone marrow-derived skeletal stem cells(SSCs),in association with other cells of the marrow stroma(bone marrow stromal cells,BMSCs)and their heterogeneous nature both in vivo and in vitro remain to be *** review aims to highlight:i)the importance of distinguishing BMSCs/SSCs from other“mesenchymal stem/stromal cells”,and ii)factors that are responsible for their heterogeneity,and how these factors impact on the differentiation potential of SSCs towards *** prospective role of SSC enrichment,their expansion and its impact on SSC phenotype is *** has also been given to emerging single cell RNA sequencing approaches in scrutinizing the unique population of SSCs within the BMSC population,along with their committed *** the factors involved in heterogeneity may help researchers to improvise their strategies to isolate,characterize and adopt best culture practices and source identification to develop standard operating protocols for developing reproducible stem cells ***,more scientific understanding of the molecular basis of heterogeneity is warranted that may be obtained from the robust high-throughput functional transcriptomics of single cells or clonal populations.

关键词： bone marrow stromal cells clonal analysis heterogeneity single cell analysis skeletal stem cells

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Gsα^(R201C)and estrogen reveal different subsets of bone marrow adiponectin expressing osteogenic cells

引用

Bone Research 2022年第4期10卷 784-798页

作者： Biagio Palmisano Rossella Labella Samantha Donsante Cristina Remoli Emanuela Spica Ilenia Coletta Giorgia Farinacci Michele Dello Spedale Venti Isabella Saggio Marta Serafini pamela gehron robey Alessandro Corsi Mara Riminucci Department of Molecular Medicine Sapienza University of RomeRome 00161Italy Tettamanti Research Center Department of PediatricsUniversity of Milano Bicocca/Fondazione MBBMMonza 20900Italy Department of Biology and Biotechnology Sapienza University of RomeRome 00185Italy Institute of Structural Biology and School of Biological Sciences Nanyang Technological University 639798 SingaporeSingapore CNR Institute of Molecular Biology and Pathology Piazzale Aldo Moro 5Rome 00185Italy Skeletal Biology Section National Institute of Dental and Craniofacial ResearchNational Institutes of HealthDepartment of Health and Human ServicesBethesdaMD 20892USA

The Gsα/cAMP signaling pathway mediates the effect of a variety of hormones and factors that regulate the homeostasis of the post-natal ***,the dysregulated activity of Gsαdue to gain-of-function mutations (R201C/R201H)results in severe architectural and functional derangements of the entire bone/bone marrow *** the consequences of gain-of-function mutations of Gsαhave been extensively investigated in osteoblasts and in bone marrow osteoprogenitor cells at various differentiation stages,their effect in adipogenically-committed bone marrow stromal cells has remained *** generated a mouse model with expression of Gsα^(R201C) driven by the Adiponectin(Adq)***-Gsα^(R201C) mice developed a complex combination of metaphyseal,diaphyseal and cortical bone *** the metaphysis,Gsα^(R201C) caused an early phase of bone resorption followed by bone *** bone formation was sustained by cells that were traced by Adq-Cre and eventually resulted in a high trabecular bone mass *** the diaphysis,Gsα^(R201C),in combination with estrogen,triggered the osteogenic activity of Adq-Cre-targeted perivascular bone marrow stromal cells leading to intramedullary bone ***,consistent with the previously unnoticed presence of Adq-Cre-marked pericytes in intraosseous blood vessels,Gsα^(R201C) caused the development of a lytic phenotype that affected both cortical(increased porosity)and trabecular(tunneling resorption)*** results provide the first evidence that the Adq-cell network in the skeleton not only regulates bone resorption but also contributes to bone formation,and that the Gsα/cAMP pathway is a major modulator of both functions.

关键词： estrogen sustained skeleton

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Erythropoietin modulates bone marrow stromal cell differentiation

引用

Bone Research 2019年第3期7卷 272-285页

作者： Sukanya Suresh Luis Fernandez de Castro Soumyadeep Dey pamela G. robey Constance Tom Noguchi Molecular Medicine Branch National Institute of Diabetes and Digestive and Kidney Diseases National Institutes of Health Bethesda MD 20892 USA Skeletal Biology Section National Institute of Dental and Craniofacial Research National Institutes of Health Bethesda MD 20892 USA

Erythropoietin is essential for bone marrow erythropoiesis and erythropoietin receptor on non-erythroid cells including bone marrow stromal cells suggests systemic effects of erythropoietin. Tg6 mice with chronic erythropoietin overexpression have a high hematocrit, reduced trabecular and cortical bone and bone marrow adipocytes, and decreased bone morphogenic protein 2 driven ectopic bone and adipocyte formation. Erythropoietin treatment(1 200 IU·kg–1) for 10 days similarly exhibit increased hematocrit,reduced bone and bone marrow adipocytes without increased osteoclasts, and reduced bone morphogenic protein signaling in the bone marrow. Interestingly, endogenous erythropoietin is required for normal differentiation of bone marrow stromal cells to osteoblasts and bone marrow adipocytes.ΔEpoR_E mice with erythroid restricted erythropoietin receptor exhibit reduced trabecular bone, increased bone marrow adipocytes, and decreased bone morphogenic protein 2 ectopic bone formation. Erythropoietin treated ΔEpoR_E mice achieved hematocrit similar to wild-type mice without reduced bone, suggesting that bone reduction with erythropoietin treatment is associated with non-erythropoietic erythropoietin response. Bone marrow stromal cells from wild-type,Tg6, and ΔEpoR_E-mice were transplanted into immunodeficient mice to assess development into a bone/marrow organ. Like endogenous bone formation, Tg6 bone marrow cells exhibited reduced differentiation to bone and adipocytes indicating that high erythropoietin inhibits osteogenesis and adipogenesis, while ΔEpoR_E bone marrow cells formed ectopic bones with reduced trabecular regions and increased adipocytes, indicating that loss of erythropoietin signaling favors adipogenesis at the expense of osteogenesis. In summary, endogenous erythropoietin signaling regulates bone marrow stromal cell fate and aberrant erythropoietin levels result in their impaired differentiation.

关键词： bone marrow adipocyte normal differentiation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Secreted frizzled related-protein 2(Sfrp2)deficiency decreases adult skeletal stem cell function in mice

引用

Bone Research 2021年第4期9卷 606-617页

作者： Luis Fernandez de Castro Brian丄Sworder Byron Mui Kathryn Futrega Agnes Berendsen Matthew D.Phillips Nathan J.Burbach Natasha Cherman Sergei Kuznetsov Yankel Gabet Kenn Holmbeck pamela G.robey Skeletal Biology Section National Institute of Dental and Craniofacial ResearchNational Institutes of HealthDepartment of Health and Human ServicesNational Institutes of HealthBethesdaMDUSA Department of Molecular Medicine Boston UniversityBostonMAUSA School of Dentistry University of Minnesota-Twin CitiesMinneapolisMNUSA Department of Anatomy and Anthropology Sackler Faculty of MedicineTel Aviv UniversityTel Aviv-YafoIsrael

In a previous transcriptomic study of human bone marrow stromal cells(BMSCs,also known as bone marrow-derived^mesenchymal stem cells#,)/SFRP2 was highly over-represented in a subset of multipotent BMSCs(skeletal stem cells,SSCs),which recreate a bone/marrow organ in an in vivo ectopic bone formation *** modulate WNT signaling,which is essential to maintain skeletal homeostasis,but the specific role of SFRP2 in BMSCs/SSCs is ***,we evaluated Sfrp2 deficiency on BMSC/SSC function in models of skeletal organogenesis and *** skeleton of Sfrp2-def\c\ent(KO)mice is overtly normal;but their BMSCs/SSCs exhibit reduced colony-forming efficiency,reflecting low SSC self-renewal/***2 KO BMSCs/SSCs formed less trabecular bone than those from WT littermates in the ectopic bone formation ***,regeneration of a cortical drilled hole defect was dramatically impaired in Sfrp2 KO ***2-deficient BMSCs/SSCs exhibited poor in vitro osteogenic differentiation as measured by Runx2 and Osterix expression and calcium ***,activation of the Wnt co-receptor;Lrp6,and expression of Wnt target genes,Axin2,C-myc and Cyclin Dl,were reduced in Sfrp2-deficient BMSCs/*** of recombinant Sfrp2 restored most of these activities,suggesting that Sfrp2 acts as a Wnt *** demonstrate that Sfrp2 plays a role in self-renewal of SSCs and in the recruitment and differentiation of adult SSCs during bone ***2 is also a useful marker of BMSC/SSC multipotency,and a factor to potentially improve the quality of ex vivo expanded BMSC/SSC products.

关键词： skeletal impaired healing

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：