EasySep™小鼠TIL（CD45）正选试剂盒
产品号 #05504_C
小鼠间充质干细胞和胚胎成纤维细胞分化为成骨细胞的完全培养基
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总览
MesenCult™成骨刺激试剂盒（小鼠）是专为来自致密骨和骨髓的小鼠间充质干祖细胞（MSCs）以及小鼠胚胎成纤维细胞（MEFs）分化为成骨细胞而研制。本试剂盒可诱导小鼠MSCs和 MEFs 强力成骨，这一点可通过对参与骨分化和成熟的关键转录基因进行 qPCR 分析和茜素红染色得到证明。本试剂盒推荐用于鉴定MSCs和 MEFs 以及研究骨发育。
分类
专用培养基
细胞类型
间充质干/祖细胞，鼠胚胎成纤维细胞，成骨细胞
种属
小鼠
应用
细胞培养，分化
品牌
MesenCult
研究领域
药物发现和毒性检测，干细胞生物学
实验数据
产品说明书及文档
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应用领域
本产品专为以下研究领域设计，适用于工作流程中的高亮阶段。探索这些工作流程，了解更多我们为各研究领域提供的其他配套产品。
相关材料与文献
技术资料 (5)
文献 (6)
Hookworm Secreted Extracellular Vesicles Interact With Host Cells and Prevent Inducible Colitis in Mice.
Frontiers in immunology 2018
Abstract
Gastrointestinal (GI) parasites,hookworms in particular,have evolved to cause minimal harm to their hosts,allowing them to establish chronic infections. This is mediated by creating an immunoregulatory environment. Indeed,hookworms are such potent suppressors of inflammation that they have been used in clinical trials to treat inflammatory bowel diseases (IBD) and celiac disease. Since the recent description of helminths (worms) secreting extracellular vesicles (EVs),exosome-like EVs from different helminths have been characterized and their salient roles in parasite-host interactions have been highlighted. Here,we analyze EVs from the rodent parasite Nippostrongylus brasiliensis,which has been used as a model for human hookworm infection. N. brasiliensis EVs (Nb-EVs) are actively internalized by mouse gut organoids,indicating a role in driving parasitism. We used proteomics and RNA-Seq to profile the molecular composition of Nb-EVs. We identified 81 proteins,including proteins frequently present in exosomes (like tetraspanin,enolase,14-3-3 protein,and heat shock proteins),and 27 sperm-coating protein-like extracellular proteins. RNA-Seq analysis revealed 52 miRNA species,many of which putatively map to mouse genes involved in regulation of inflammation. To determine whether GI nematode EVs had immunomodulatory properties,we assessed their potential to suppress GI inflammation in a mouse model of inducible chemical colitis. EVs from N. brasiliensis but not those from the whipworm Trichuris muris or control vesicles from grapes protected against colitic inflammation in the gut of mice that received a single intraperitoneal injection of EVs. Key cytokines associated with colitic pathology (IL-6,IL-1$\beta$,IFN$\gamma$,and IL-17a) were significantly suppressed in colon tissues from EV-treated mice. By contrast,high levels of the anti-inflammatory cytokine IL-10 were detected in Nb-EV-treated mice. Proteins and miRNAs contained within helminth EVs hold great potential application in development of drugs to treat helminth infections as well as chronic non-infectious diseases resulting from a dysregulated immune system,such as IBD.
Identification of a mesenchymal progenitor cell hierarchy in adipose tissue.
Science (New York,N.Y.) 2019
Abstract
Metabolic health depends on the capacity of adipose tissue progenitor cells to undergo de novo adipogenesis. The cellular hierarchy and mechanisms governing adipocyte progenitor differentiation are incompletely understood. Through single-cell RNA sequence analyses,we show that the lineage hierarchy of adipocyte progenitors consists of distinct mesenchymal cell types that are present in both mouse and human adipose tissues. Cells marked by dipeptidyl peptidase-4 (DPP4)/CD26 expression are highly proliferative,multipotent progenitors. During the development of subcutaneous adipose tissue in mice,these progenitor cells give rise to intercellular adhesion molecule-1 (ICAM1)/CD54-expressing (CD54+) committed preadipocytes and a related adipogenic cell population marked by Clec11a and F3/CD142 expression. Transforming growth factor-beta maintains DPP4+ cell identity and inhibits adipogenic commitment of DPP4+ and CD142+ cells. Notably,DPP4+ progenitors reside in the reticular interstitium,a recently appreciated fluid-filled space within and between tissues,including adipose depots.
Aligned fibrous decellularized cell derived matrices for mesenchymal stem cell amplification.
Journal of biomedical materials research. Part A 2019 jul
Abstract
Biochemical and biophysical stimuli of stem cell niches finely regulate the self-renewal/differentiation equilibrium. Replicating this in vitro is technically challenging,making the control of stem cell functions difficult. Cell derived matrices capture certain aspect of niches that influence fate decisions. Here,aligned fibrous matrices synthesized by MC3T3 cells were produced and the role of matrix orientation and stiffness on the maintenance of stem cell characteristics and adipo- or osteo-genic differentiation of murine mesenchymal stem cells (mMSCs) was investigated. Decellularized matrices promoted mMSC proliferation. Fibrillar alignment and matrix stiffness work in concert in defining cell fate. Soft matrices preserve stemness,whereas stiff ones,in presence of biochemical supplements,promptly induce differentiation. Matrix alignment impacts the homogeneity of the cell population,that is,soft aligned matrices ameliorate the spontaneous adipogenic differentiation,whereas stiff aligned matrices reduce cross-differentiation. We infer that mechanical signaling is a dominant factor in mMSC fate decision and the matrix alignment contributes to produce a more homogeneous environment,which results in a uniform response of cells to biophysical environment. Matrix thus produced can be obtained in vitro in a facile and consistent manner and can be used for homogeneous stem cell amplification or for mechanotransduction-related studies.
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