发布: 2017年09月05日第7卷第17期 DOI: 10.21769/BioProtoc.2530 浏览次数: 8548
评审: Anonymous reviewer(s)
Abstract
Cardiac neural crest cells (CNCCs) originate at the dorsal edge of the neural tube between the otic pit and the caudal edge of the 3rd somite, and migrate into the pharyngeal arches and the heart. We have shown that fibronectin (Fn1) plays an important role in the development of the CNCC by regulating the differentiation of CNCCs into vascular smooth muscle cells around pharyngeal arch arteries (Wang and Astrof, 2016). This protocol describes the isolation of CNCCs from the neural tube and from the caudal pharyngeal arches, and the differentiation of neural crest-derived cells into smooth muscle cells. This protocol was adapted from (Newgreen and Murphy, 2000; Pfaltzgraff et al., 2012).
Keywords: Cardiac neural crest (心脏神经嵴)Background
Previous published protocols described the isolation of neural crest cells from the neural tube. However, neural crest cells in the region of the neural tube between the otic pit and the 3rd somite include neural crest cell populations that contribute to a number of different cell types; for example, vagal neural crest cells also originate from this region. In this protocol, we modified the conventional method for the isolation of cardiac neural crest cells. Instead of using the neural tube, we used the caudal pharyngeal arch region at embryonic day (E) 9.5 (22-25 somite stage). This is prior to differentiation of cardiac neural crest cells into vascular smooth muscle cells. It is common for neural crest cultures to contain contaminating mesenchymal cell types, which often express smooth muscle genes. To identify neural crest-derived cells, we isolated neural crest cells from embryos resulting from the following cross: Fn1flox/flox;ROSAmTmG/mTmG female mice x Fn1+/−;Tfap2αIRESCre/+ male mice. In 50% of the progeny from this cross, neural crest cells are lineage-labeled by the expression of GFP, so we could easily identify neural crest cells by their GFP expression without the need for cell sorting (Wang and Astrof, 2016). Additional Cre-expressing strains that can be used are Wnt1-Cre2 (Lewis et al., 2013) and P3ProCre (Li et al., 2000) transgenic strains, e.g., (Wang and Astrof, 2016). All experimental procedures were approved by the Institutional Animal Care and Use Committee of Thomas Jefferson University and conducted in accordance with federal guidelines for humane care of animals.
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版权信息
© 2017 The Authors; exclusive licensee Bio-protocol LLC.
如何引用
Wang, X. and Astrof, S. (2017). Isolation of Mouse Cardiac Neural Crest Cells and Their Differentiation into Smooth Muscle Cells. Bio-protocol 7(17): e2530. DOI: 10.21769/BioProtoc.2530.
分类
发育生物学 > 细胞生长和命运决定 > 肌纤维
细胞生物学 > 细胞分离和培养 > 细胞分化
细胞生物学 > 细胞分离和培养 > 细胞分离
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