| Transcardiac Perfusion of the Mouse for Brain Tissue Dissection and Fixation
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Author:
Date:
2021-03-05
[Abstract] Transcardiac perfusion with saline followed by 4% paraformaldehyde (PFA) is widely used to clear blood and preserve brain for immunostaining or in situ hybridization. PFA breaks into formaldehyde in solution, which cross-link protein and DNA molecules to preserve tissue and cell structure. Here we provide a step by step guide for performing this procedure in mouse.
[摘要] [摘要]经盐水灌注心内膜灌注4％多聚甲醛（PFA ）被广泛用于清除血液和保存脑部以进行免疫染色或原位杂交。PFA在溶液中分解成甲醛，甲醛使蛋白质和DNA分子交联以保留组织和细胞结构。在这里，我们提供了在鼠标中执行此过程的逐步指南。
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| Transcardiac Perfusion of the Mouse for Brain Tissue Dissection and Fixation
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Author:
Date:
2021-01-05
[Abstract] Transcardiac perfusion with saline followed by 4% paraformaldehyde (PFA) is widely used to clear blood and preserve brain for immunostaining or in situ hybridization. PFA breaks into formaldehyde in solution, which cross-link protein and DNA molecules to preserve tissue and cell structure. Here we provide a step by step guide for performing this procedure in mouse.
[摘要] [摘要]经盐水灌注心内膜灌注4％多聚甲醛（PFA ）被广泛用于清除血液和保存脑部以进行免疫染色或原位杂交。PFA在溶液中分解成甲醛，甲醛使蛋白质和DNA分子交联以保留组织和细胞结构。在这里，我们提供了在鼠标中执行此过程的逐步指南。
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| Differentiation of Human Induced Pluripotent Stem Cells (hiPSCs) into Osteoclasts
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Author:
Date:
2020-12-20
[Abstract] Defects in bone resorption by osteoclasts result in numerous rare genetic bone disorders as well as in some common diseases such as osteoporosis or osteopetrosis. The use of hiPSC-differentiated osteoclasts opens new avenues in this research field by providing an unlimited cell source and overcoming obstacles such as unavailability of human specimens and suitable animal models. Generation of hiPSCs is well established but efficient differentiation of hiPSCs into osteoclasts has been challenging. Published hiPSC-osteoclast differentiation protocols use a hiPSC-OP9 co-culture system or hiPSC-derived embryoid bodies (EBs) with multiple cytokines. Our three-stage protocol consists of 1) EB mesoderm differentiation, 2) expansion of myelomonocytic cells and 3) maturation of hiPSC-osteoclasts. ...
[摘要] [摘要]破骨细胞引起的骨吸收缺陷导致许多罕见的遗传性骨疾病以及某些常见的疾病，例如骨质疏松症或骨质疏松症。采用的hiPSC -分化破骨细胞通过提供无限的细胞来源和克服障碍，如人体标本和合适的动物模型的可用性打开了该领域的新途径。hiPSC的生成已被公认，但是将hiPSC高效分化为破骨细胞一直具有挑战性。发布的hiPSC -osteoclast分化协议使用的hiPSC-OP9共培养体系或hiPSC细胞来源的胚状 具有多种细胞因子的机体（EB）。我们的三阶段协议包含：1）中胚层EB分化，2）的扩张骨髓单核细胞和3）的成熟的hiPSC -osteoclasts。我们通过在Nunclon Sphera微孔板上培养Accutase分离的hiPSCs来产生大小均一的EB，并在4天的细胞因子混合物中促进EB中胚层分化。对于第2阶段，将EBs转移至明胶包被的平板中，并用hM -CSF和hIL-3培养，以扩增骨髓单核细胞群。通过与维生素d，补充hTGF β，HM -CSF和hRANKL ，在第2阶段结束时收集的细胞的diff erentiated成成熟破骨细胞（第3阶段）。与其他技术相比，我们的协议不需要共培养系统。诱导EBs分化为中胚层 均匀的方式; 使用较少的细胞因子进行分化；只需要很短的时间就可以使破骨细胞成熟，并产生足够数量的破骨细胞用于后续的分子分析。
图形摘要： ...
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