产品号 #100-0825_C
用于建立包含人多能干细胞衍生的脉络丛样上皮的类器官模型的培养基试剂盒
用于建立包含人多能干细胞衍生的脉络丛样上皮的类器官模型的培养基试剂盒
利用人类多能干细胞 (hPSC) 衍生的类器官,以脉络丛(构成血脑脊液屏障的特殊脑上皮)为模型,采用体外方法探索人类神经生物标志物并测定中枢神经系统 (CNS) 的通透性。通过其三维组织结构和功能性屏障上皮,您将获得前所未有的可及性和可控性,用于药物分布研究以及脑脊液 (CSF) 的制备和提取。
使用 STEMdiff™ 脉络丛分化试剂盒的简易五阶段方案,您可以高效且可重复地生成脉络丛类器官,用于各种下游应用。该试剂盒基于 Pellegrini 等人发表的配方(Science,2020),该配方因其在动物减少、替代和精炼方面的突破而荣获3Rs 奖。脉络丛类器官的形成始于一个中间拟胚体 (EB) 形成步骤,随后神经上皮细胞扩增并逐渐形成脉络丛样上皮。经过一段成熟期后,使用该试剂盒生成的类器官呈囊性结构,其内部充满类似脑脊液的液体,并被一层表达脑室上皮脉络丛特异性标志物(TTR、CLIC6、AQP1)的上皮层包裹。
如需长时间培养(> 40 天),可购买 STEMdiff™ 脉络丛类器官成熟试剂盒(货号 100-0825)来获取类器官成熟所需的成分。
细胞类型
上皮细胞,PSC衍生,神经细胞,PSC衍生,神经干/祖细胞,多能干细胞
种属
人
应用
细胞培养,分化,功能学筛选,类器官培养,表型鉴定,细胞毒性检测
品牌
STEMdiff
研究领域
疾病建模,药物发现和毒理检测,上皮细胞研究,细胞外囊泡研究,神经科学,类器官
制剂类别
无血清
Figure 1. Protocol Schematic for the STEMdiff™ Choroid Plexus Organoid Differentiation and Maturation Kits
Choroid plexus organoids can be generated from human embryonic stem (ES) or induced pluripotent stem (iPS) cells in 30 days. The protocol begins with embryoid body (EB) formation, followed by expansion of neuroepithelia and patterning to choroid plexus-like epithelium. After a period of epithelial maturation including extensive bubbling, the organoids develop cystic structures surrounded by an ependymal epithelial layer and filled with a fluid resembling cerebrospinal fluid (CSF).
Figure 2. Organoids Generated Using the STEMdiff™ Choroid Plexus Organoid Differentiation and Maturation Kits Exhibit Fluid-Filled Cysts and Ependymal Epithelial Morphology
(A) Phase-contrast image of a whole choroid plexus organoid at day 40 using the STEMdiff™ Choroid Plexus Organoid Differentiation and Maturation Kits. Organoids exhibit translucent cysts containing a CSF-like fluid. (B) Epithelia on choroid plexus organoids exhibit a tightly packed and cuboidal morphology typical of ependymal cells that line the brain ventricles in vivo.
Figure 3. Choroid Plexus Organoids Express Markers of Ependymal Epithelium and Show Limited Expression of Neuroepithelial Markers
Immunohistological analysis on whole cleared and stained (Masselink et al. 2019) choroid plexus organoids at day 40 reveals that their cystic structures are (A) TTR- (green) and (B) CLIC6- (red) positive. (C) These ependymal cell markers are highly co-localized. (D) Bundles of MAP2-positive (magenta) neurons are observed but are not co-localized with the ependymal cell markers.
Figure 4. Fluid Extracted from Cysts in Choroid Plexus Organoids is Enriched with Clusterin Protein, A Marker of Cerebrospinal Fluid (CSF)
CSF-like fluid was extracted from cysts contained in day 40 choroid plexus organoids using a 28G syringe. A western blot was performed on the extracted fluid to detect Clusterin and shows a band between the 37 and 50 kDa molecular weight marker. Clusterin is a soluble secreted chaperone protein found in high abundance in CSF.
Find supporting information and directions for use in the Product Information Sheet or explore additional protocols below.
This product is designed for use in the following research area(s) as part of the highlighted workflow stage(s). Explore these workflows to learn more about the other products we offer to support each research area.
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Species | Human |
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Formulation Category | Serum-Free |
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