Name: isolation and quantitative evaluation of brush cells from mouse tracheas
Uploaded: 2019-06-12T13:30:00
Description: Watch this Scientific Journal Video about Isolation and Quantitative Evaluation of Brush Cells from Mouse Tracheas at JoVE.com

我们感谢布里格姆和妇女人类免疫学中心流动核心的亚当·奇币,感谢他在流式细胞分型方面的帮助。这项工作得到了国家卫生研究院资助R01 HL120952(N.A.B.),R01 AI134989(N.A.B),U19 AI095219(N.A.B., L.G.B) 和 K08 AI132723 (L.G.B),由美国过敏、哮喘和免疫学学会 (AAAAI)/ 美国肺过敏呼吸疾病奖(N.A.B.),由AAAAI基金会教师发展奖(L.G.B.),史蒂文和朱迪·凯青年创新者奖(N.A.B.),乔伊斯琳·奥斯汀女医生职业发展基金(L.G.B.)颁发,维尼克家族的慷慨捐赠(L.G.B.)。

在进行以下实验之前,确保所有动物护理使用和规程都得到机构动物护理和使用委员会 (IACUC) 的批准,并符合国家研究理事会的"护理和使用指南"。实验室动物"( 第8版,2011年)和《大起百万人指南》。下文所述的所有程序都经过布里格姆和妇女医院的机构动物护理和使用委员会的审查和批准。
1. 试剂制备
<ol><li>制备脱脂消化溶液,这是一种PBS溶液,含有16U/mL消?...

<ol>
	<li>Tizzano, M., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Nasal+chemosensory+cells+use+bitter+taste+signaling+to+detect+irritants+and+bacterial+signals.">Nasal chemosensory cells use bitter taste signaling to detect irritants and bacterial signals.</a> Proceedings of the National Academy of Sciences of the United States of America. 107 (7), 3210-3215 (2010).</li><li>Genovese, F., Tizzano, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Microvillous+cells+in+the+olfactory+epithelium+express+elements+of+the+solitary+chemosensory+cell+transduction+signaling+cascade.">Microvillous cells in the olfactory epithelium express elements of the solitary chemosensory cell transduction signaling cascade.</a> PLoS One. 13 (9), 0202754 (2018).</li><li>Bankova, L. G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+cysteinyl+leukotriene+3+receptor+regulates+expansion+of+IL-25-producing+airway+brush+cells+leading+to+type+2+inflammation.">The cysteinyl leukotriene 3 receptor regulates expansion of IL-25-producing airway brush cells leading to type 2 inflammation.</a> Science Immunology. 3 (28), (2018).</li><li>Krasteva, G., Canning, B. J., Papadakis, T., Kummer, W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cholinergic+brush+cells+in+the+trachea+mediate+respiratory+responses+to+quorum+sensing+molecules.">Cholinergic brush cells in the trachea mediate respiratory responses to quorum sensing molecules.</a> Life Sciences. 91 (21-22), 992-996 (2012).</li><li>Nadjsombati, M. S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Detection+of+Succinate+by+Intestinal+Tuft+Cells+Triggers+a+Type+2+Innate+Immune+Circuit.">Detection of Succinate by Intestinal Tuft Cells Triggers a Type 2 Innate Immune Circuit.</a> Immunity. 49 (1), 33-41 (2018).</li><li>von Moltke, J., Ji, M., Liang, H. E., Locksley, R. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tuft-cell-derived+IL-25+regulates+an+intestinal+ILC2-epithelial+response+circuit.">Tuft-cell-derived IL-25 regulates an intestinal ILC2-epithelial response circuit.</a> Nature. 529 (7585), 221-225 (2016).</li><li>Deckmann, K., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Bitter+triggers+acetylcholine+release+from+polymodal+urethral+chemosensory+cells+and+bladder+reflexes.">Bitter triggers acetylcholine release from polymodal urethral chemosensory cells and bladder reflexes.</a> Proceedings of the National Academy of Sciences of the United States of America. 111 (22), 8287-8292 (2014).</li><li>Liu, S., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Members+of+Bitter+Taste+Receptor+Cluster+Tas2r143/Tas2r135/Tas2r126+Are+Expressed+in+the+Epithelium+of+Murine+Airways+and+Other+Non-gustatory+Tissues.">Members of Bitter Taste Receptor Cluster Tas2r143/Tas2r135/Tas2r126 Are Expressed in the Epithelium of Murine Airways and Other Non-gustatory Tissues.</a> Frontiers in Physiology. 8, 849 (2017).</li><li>Krasteva, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cholinergic+chemosensory+cells+in+the+auditory+tube.">Cholinergic chemosensory cells in the auditory tube.</a> Histochemistry and Cell Biology. 137 (4), 483-497 (2012).</li><li>Krasteva, G., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cholinergic+chemosensory+cells+in+the+trachea+regulate+breathing.">Cholinergic chemosensory cells in the trachea regulate breathing.</a> Proceedings of the National Academy of Sciences of the United States of America. 108 (23), 9478-9483 (2011).</li><li>Montoro, D. T., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+revised+airway+epithelial+hierarchy+includes+CFTR-expressing+ionocytes.">A revised airway epithelial hierarchy includes CFTR-expressing ionocytes.</a> Nature. 560 (7718), 319-324 (2018).</li><li>Plasschaert, L. W., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+single-cell+atlas+of+the+airway+epithelium+reveals+the+CFTR-rich+pulmonary+ionocyte.">A single-cell atlas of the airway epithelium reveals the CFTR-rich pulmonary ionocyte.</a> Nature. 560 (7718), 377-381 (2018).</li><li>Dwyer, D. F., Barrett, N. A., Austen, K. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Immunological+Genome+Project,+C.+Expression+profiling+of+constitutive+mast+cells+reveals+a+unique+identity+within+the+immune+system.">Immunological Genome Project, C. Expression profiling of constitutive mast cells reveals a unique identity within the immune system.</a> Nature Immunology. 17 (7), 878-887 (2016).</li><li>Howitt, M. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tuft+cells,+taste-chemosensory+cells,+orchestrate+parasite+type+2+immunity+in+the+gut.">Tuft cells, taste-chemosensory cells, orchestrate parasite type 2 immunity in the gut.</a> Science. 351 (6279), 1329-1333 (2016).</li><li>Bankova, L. G., Dwyer, D. F., Liu, A. Y., Austen, K. F., Gurish, M. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Maturation+of+mast+cell+progenitors+to+mucosal+mast+cells+during+allergic+pulmonary+inflammation+in+mice.">Maturation of mast cell progenitors to mucosal mast cells during allergic pulmonary inflammation in mice.</a> Mucosal Immunology. 8 (3), 596-606 (2015).</li><li>Rock, J. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Basal+cells+as+stem+cells+of+the+mouse+trachea+and+human+airway+epithelium.">Basal cells as stem cells of the mouse trachea and human airway epithelium.</a> Proceedings of the National Academy of Sciences of the United States of America. 106 (31), 12771-12775 (2009).</li><li>Rock, J. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Multiple+stromal+populations+contribute+to+pulmonary+fibrosis+without+evidence+for+epithelial+to+mesenchymal+transition.">Multiple stromal populations contribute to pulmonary fibrosis without evidence for epithelial to mesenchymal transition.</a> Proceedings of the National Academy of Sciences of the United States of America. 108 (52), 1475-1483 (2011).</li><li>Gerbe, F., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Intestinal+epithelial+tuft+cells+initiate+type+2+mucosal+immunity+to+helminth+parasites.">Intestinal epithelial tuft cells initiate type 2 mucosal immunity to helminth parasites.</a> Nature. 529 (7585), 226-230 (2016).</li><li>Rock, J. R., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Transmembrane+protein+16A+(TMEM16A)+is+a+Ca2+-regulated+Cl-+secretory+channel+in+mouse+airways.">Transmembrane protein 16A (TMEM16A) is a Ca2+-regulated Cl- secretory channel in mouse airways.</a> Journal of Biological Chemistry. 284 (22), 14875-14880 (2009).</li><li>Olsen, J. V., Ong, S. E., Mann, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Trypsin+cleaves+exclusively+C-terminal+to+arginine+and+lysine+residues.">Trypsin cleaves exclusively C-terminal to arginine and lysine residues.</a> Molecular and Cellular Proteomics. 3 (6), 608-614 (2004).</li><li>Verma, S., Dixit, R., Pandey, K. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cysteine+Proteases:+Modes+of+Activation+and+Future+Prospects+as+Pharmacological+Targets.">Cysteine Proteases: Modes of Activation and Future Prospects as Pharmacological Targets.</a> Frontiers in Pharmacology. 7, 107 (2016).</li><li>Huettner, J. E., Baughman, R. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Primary+culture+of+identified+neurons+from+the+visual+cortex+of+postnatal+rats.">Primary culture of identified neurons from the visual cortex of postnatal rats.</a> Journal of Neuroscience. 6 (10), 3044-3060 (1986).</li><li>Kaiser, O., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dissociated+neurons+and+glial+cells+derived+from+rat+inferior+colliculi+after+digestion+with+papain.">Dissociated neurons and glial cells derived from rat inferior colliculi after digestion with papain.</a> PLoS One. 8 (12), 80490 (2013).</li><li>Aoyagi, T., Takeuchi, T., Matsuzaki, A., Kawamura, K., Kondo, S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Leupeptins,+new+protease+inhibitors+from+Actinomycetes.">Leupeptins, new protease inhibitors from Actinomycetes.</a> Journal of Antibiotics (Tokyo). 22 (6), 283-286 (1969).</li><li>Kohanski, M. A., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Solitary+chemosensory+cells+are+a+primary+epithelial+source+of+IL-25+in+patients+with+chronic+rhinosinusitis+with+nasal+polyps.">Solitary chemosensory cells are a primary epithelial source of IL-25 in patients with chronic rhinosinusitis with nasal polyps.</a> The Journal of Allergy and Clinical Immunology. 142 (2), 460-469 (2018).</li><li>Patel, N. N., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Solitary+chemosensory+cells+producing+interleukin-25+and+group-2+innate+lymphoid+cells+are+enriched+in+chronic+rhinosinusitis+with+nasal+polyps.">Solitary chemosensory cells producing interleukin-25 and group-2 innate lymphoid cells are enriched in chronic rhinosinusitis with nasal polyps.</a> International Forum of Allergy &amp; Rhinology. , (2018).</li><li>Kouzaki, H., O'Grady, S. M., Lawrence, C. B., Kita, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Proteases+induce+production+of+thymic+stromal+lymphopoietin+by+airway+epithelial+cells+through+protease-activated+receptor-2.">Proteases induce production of thymic stromal lymphopoietin by airway epithelial cells through protease-activated receptor-2.</a> The Journal of Immunology. 183 (2), 1427-1434 (2009).</li><li>Cambier, J. C., Vitetta, E. S., Kettman, J. R., Wetzel, G. M., Uhr, J. W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=B-cell+tolerance.+III.+Effect+of+papain-mediated+cleavage+of+cell+surface+IgD+on+tolerance+susceptibility+of+murine+B+cells.">B-cell tolerance. III. Effect of papain-mediated cleavage of cell surface IgD on tolerance susceptibility of murine B cells.</a> The Journal of Experimental Medicine. 146 (1), 107-117 (1977).</li><li>Nishikado, H., et al. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cysteine+protease+antigens+cleave+CD123,+the+alpha+subunit+of+murine+IL-3+receptor,+on+basophils+and+suppress+IL-3-mediated+basophil+expansion.">Cysteine protease antigens cleave CD123, the alpha subunit of murine IL-3 receptor, on basophils and suppress IL-3-mediated basophil expansion.</a> Biochemical and Biophysical Research Communications. 460 (2), 261-266 (2015).</li></ol>

我们发现,高剂量消血治疗40分钟,然后短的木瓜治疗(30分钟)的组合为气管消化和刷细胞分离提供了最佳方案。与替代协议相比,这种组合既避免了广泛的消化,又能产生最高产量的刷细胞。
虽然肺消化提取造血细胞传统上依赖于温和的消化酶,如胶原酶IV15,但分离上皮细胞需要更复杂的方案。上皮细胞的单细胞悬浮体更难实现,因为紧密和粘附结将它们结合在彼此...

刷细胞属于一类化学感官上皮细胞,其特征是苦味受体的表达和味蕾细胞中发现的味觉受体转导机制。与味蕾细胞不同,化学感官上皮细胞分散在上皮表面,被称为鼻上皮1、2、气管中的微微神经质细胞。3,4,和肠中的突子细胞5,6。表达苦味受体和苦味转导机制的皮下细胞也存在于尿道7、8和听觉管9中。气道刷细胞在神经生成和免疫气道反应中具有独特的功能。它们是乙酰胆碱产生的化学感觉细胞,在用苦化合物和细菌代谢物(如法定感物质10)激活时引起保护性呼吸反射。气道刷细胞也是IL-25的主要气道上皮来源,它调节气道3中的气过敏原-2型炎症。
低气道刷细胞的完整转录组及其对环境刺激的反应的表征,由于在气管上皮中数量少,且大支气管10以外的数量非常有限。用于从肠道上皮分离化学感觉细胞的技术并没有从气管中产生比例高的数字,可能是因为神经末梢为10或其他的气管刷细胞的亲密接触呼吸粘部中的组织特异性因子,如粘附物和紧密结蛋白的组成。最近关于单细胞RNA测序分析成功分离高数量的气管刷细胞的报告,要么采用2小时培养,要么用帕金孵育,要么用18小时孵育11,12。由于使用消化酶的较长孵育期会降低细胞活力,并改变消化组织13细胞的转录轮廓,这可能偏向其他化学感觉上皮种群的比较分析。
在这里,我们报告一种用于RNA测序的气管刷细胞分离方法。用高剂量去巴西气管治疗将上皮从亚粘管中分离出来。随后消化上皮片与木瓜,允许这种结构细胞的出色地恢复。

<table border="0" cellpadding="0" cellspacing="0" style="width:749px;" width="749">
	<colgroup>
		<col />
		<col />
		<col />
		<col />
	</colgroup>
	<tbody>
		<tr height="21">
			<td>Antibodies</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">Anti-GFP (Polyclonal goat Ig)</td>
			<td style="width:101px;">Abcam</td>
			<td>cat# ab5450</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">APC anti-mouse CD326 (EpCAM)&#160; (G8.8)</td>
			<td style="width:101px;">Biolegend</td>
			<td style="width:136px;">cat#118214</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">APC Rat IgG2a, k isotype control</td>
			<td style="width:101px;">Biolegend</td>
			<td style="width:136px;">cat#400511</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">DAPI</td>
			<td style="width:101px;">Biolegend</td>
			<td style="width:136px;">cat#422801</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="80">
			<td height="80" style="height:80px;width:345px;">Donkey anti-goat IgG (H+L) Highly Cross-Adsorbed Secondary Antibody, Alexa Fluor 488</td>
			<td style="width:101px;">Life Technologies/Molecular Probes</td>
			<td>cat#A-11055</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">Normal Goat IgG</td>
			<td style="width:101px;">R&#38;D Systems</td>
			<td style="width:136px;">cat#AB-108-C</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">Pacific Blue anti-mouse CD45 (30F-11)</td>
			<td style="width:101px;">Biolegend</td>
			<td style="width:136px;">cat#103126</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">Pacific Blue Rat IgG2b, k isotype control</td>
			<td style="width:101px;">Biolegend</td>
			<td style="width:136px;">cat#400627</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:345px;">TruStain FcX (anti-mouse CD16/32) Antibody</td>
			<td style="width:101px;">Biolegend</td>
			<td style="width:136px;">cat#101320</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td>Chemicals, Peptides, and Recombinant Proteins</td>
			<td style="width:167px;"></td>
			<td></td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:345px;">Dispase</td>
			<td style="width:101px;">Gibco</td>
			<td style="width:136px;">cat# 17105041&#160;</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">DNase I</td>
			<td style="width:101px;">Sigma&#160;</td>
			<td>cat# 10104159001</td>
			<td></td>
		</tr>
		<tr height="104">
			<td height="104" style="height:104px;width:345px;">HEPES-Tyrode&#8217;s Buffer Without Calcium (10 mM HEPES, 135 mM NaCl, 2.8 mM KCl, 1 mM MgCl2, 12 mM NaHCO3, 0.4 mM NaH2PO4, 0.25% BSA, 5.5 mM Glucose. Prepared in 18.2 megohms water and filtered through 0.22 &#181;m filter</td>
			<td style="width:101px;">Boston BioProducts</td>
			<td style="width:136px;">cat# PY-912</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="82">
			<td height="82" style="height:82px;width:345px;">Tyrode&#8217;s Solution (HEPES-Buffered) 140 mM NaCl, 5 mM KCl, 25 mM HEPES, 2 mM CaCl2, 2 mM MgCl2 and 10 mM glucose. Prepared in 18.2 megohms water and filtered through 0.22 &#181;m filter. )</td>
			<td style="width:101px;">Boston BioProducts</td>
			<td style="width:136px;">cat# BSS-355</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">L-Cysteine</td>
			<td style="width:101px;">Sigma</td>
			<td style="width:136px;">cat# C7352</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">Leupeptin trifluoroacetate salt</td>
			<td style="width:101px;">Sigma</td>
			<td style="width:136px;">cat# L2023</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">Papain from papaya latex</td>
			<td style="width:101px;">Sigma</td>
			<td style="width:136px;">cat# P3125</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:345px;">Propidium iodide&#160;</td>
			<td style="width:101px;">Sigma</td>
			<td style="width:136px;">cat# P4170</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:345px;">Experimental Models: Organisms/Strains</td>
			<td style="width:101px;"></td>
			<td style="width:136px;"></td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;">ChATBAC-eGFP (B6.Cg-Tg(RP23-268L19-EGFP)2Mik/J)</td>
			<td style="width:101px;">The Jackson Laboratory</td>
			<td style="width:136px;">7902</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:345px;">Equipment</td>
			<td style="width:101px;"></td>
			<td style="width:136px;"></td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:345px;">LSM 800 with Airyscan confocal system&#160;on a&#160;Zeiss Axio Observer Z1 Inverted Microscope</td>
			<td style="width:101px;">Zeiss</td>
			<td style="width:136px;"></td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">LSRFortessa</td>
			<td>BD</td>
			<td style="width:136px;">647465</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:345px;">Disposable equipment</td>
			<td style="width:101px;"></td>
			<td style="width:136px;"></td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:345px;">1.5 mL sterile tubes</td>
			<td style="width:101px;">Thomas Scientific</td>
			<td style="width:136px;">1157C86</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">5 mL Poysterene Round-bottom Tube, 12 x 75 mm style</td>
			<td style="width:101px;">Falcon</td>
			<td style="width:136px;">14-959-1A</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">50 mL Polypropylene conical tube, 30 x 115 mm style</td>
			<td style="width:101px;">Falcon</td>
			<td style="width:136px;">352098</td>
			<td></td>
		</tr>
		<tr height="40">
			<td height="40" style="height:40px;width:345px;">Feather Disposable Scalpel no.12</td>
			<td style="width:101px;">Fisher Scientific</td>
			<td style="width:136px;">NC9999403</td>
			<td></td>
		</tr>
		<tr height="20">
			<td height="20" style="height:20px;width:345px;">Petri dish, 100 x 15 mm Style</td>
			<td style="width:101px;">Falcon</td>
			<td style="width:136px;">351029</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:345px;">Sterile cell strainer, 100 &#956;m</td>
			<td style="width:101px;">Fisherbrand</td>
			<td style="width:136px;">cat#22363549</td>
			<td></td>
		</tr>
	</tbody>
</table>

isolation and quantitative evaluation of brush cells from mouse tracheas

流毛刷细胞是胆碱能化学感觉上皮细胞,准备将信号从气道流明传输到免疫和神经系统。它们是化学感觉上皮细胞家族的一部分,包括肠道粘液中的突触细胞、气管中的刷细胞以及鼻黏液中的单独化学感觉和微绒细胞。不同上皮腔的切觉细胞共享关键的细胞内标记和核心转录特征,但也表现出显著的转录异质性,可能反映局部组织环境。需要从单细胞悬浮液中分离气管刷细胞,以详细定义这些稀有上皮细胞的功能,但它们的分离具有挑战性,这可能是由于气管刷细胞和神经末梢之间的密切相互作用或由于气道特异性的紧密和粘附结的组成。在这里,我们描述了从小鼠气管上皮分离刷细胞的过程。该方法基于气管上皮从亚粘液中的初始分离,允许随后用木瓜进行上皮板的较短孵育。此过程为流动细胞分和可行气管刷细胞的功能分析提供了快速、方便的解决方案。

这个程序已经成功地实现分离气管刷细胞的RNA测序3。用2步方案分离气管和消化组织后,在排除带有PI的死细胞后,用荧光标记CD45和EpCAM收集并染色细胞。在基于正向和侧散射特性门控双精度点后,我们将画笔单元定义为 CD45 的低/负、EpCAM 的正值和 eGFP 的正数(图 2A)。刷细胞按流动细胞测定表示CD45低/负细胞的±0.16-0.42%...

Watch this Scientific Journal Video about Isolation and Quantitative Evaluation of Brush Cells from Mouse Tracheas at JoVE.com

Isolation and Quantitative Evaluation of Brush Cells from Mouse Tracheas

刷细胞是罕见的胆碱能化学感觉上皮细胞发现在天真的小鼠气管。由于其数量有限,其功能在气道免疫和改造中的作用的体外评估具有挑战性。我们描述了一种通过流式细胞测定分离气管刷细胞的方法。

小鼠特拉切斯刷细胞的分离与定量评价

Tracheal brush cells are cholinergic chemosensory epithelial cells poised to transmit signals from the airway lumen to the immune and nervous systems. ...

我们开发了一种分离气管刷细胞的程序，这是来自胆碱乙酰转移酶荧光记者小鼠的罕见专用化疗上皮细胞。此方法基于气管上皮与亚木科萨的初始分离，允许随后将上皮表与木瓜进行更短的孵育。这允许气管刷细胞的稳健恢复，并已成功用于通过RNA测序对刷细胞进行分离和转录分析。用消化酶长期孵育可以降低细胞活力，改变从组织分离的细胞的转录体特征。在这里，我们分离气管上皮与消性，然后孵育与papain短时间产生高产量的可行刷细胞。我们的方法有助于上气道上皮的研究。同样的协议可以应用于将刷细胞与其他粘膜位点（如鼻组织）隔离开来。我们高度可重复技术的演示将允许同行科学家分离和进一步研究气管刷细胞。要开始此过程，请将 dispase 和 DNase I 添加到 PBS 中，以在此显示的最终浓度下准备解胃消化溶液。在37摄氏度的水浴中加热溶液之前，确保溶解粉末完全溶解。接下来，将 5% 的热灭活 FBS 添加到 DMEM 中，以准备停止解决方案。要准备泰洛德 I 缓冲液，请将木瓜和 L-半胱氨酸添加到 HEPES Tyrode 的缓冲液中，不带钙。要准备泰洛德II缓冲液，将利普汀加入海佩斯泰洛德的缓冲液，每毫升浓度为2微升，不含有钙。要准备 FACS 缓冲液，请使用 Hank 的平衡盐溶液，不带钙、镁和酚红色，并辅以两毫摩尔 EDTA 和 2%FBS。对鼠标实施安乐死后，使用 21 个测量针将其固定在上肢和下肢延伸的手术板上。用70%乙醇喷洒毛皮，以消毒该地区。使用直钳，抬起腹部的皮肤和毛皮，并使用解剖剪刀在中心切口。使用剪刀将皮肤从皮下组织从腹部分离到曼迪布拉。在用钳子把皮下组织举起来时，用腹部壁中央的剪刀做一个小切口。然后用V形切口打开内酮。使用钳子，轻轻地将小肠移动到一边。找到腹部主动脉和维纳卡瓦，用解剖剪刀做切口，以便快速排泄。找到隔膜。使用 18 量针，在胸骨正下方的隔膜中打开一个开口，以放气肺部。使用锋利的尖直解剖剪刀，沿着肋骨底部切割，小心地将隔膜从肋骨分离。使用钳子抬起胸骨的外露端，将胸骨从肋骨底部纵向切割到颈部。使用短直剪刀做一个中央宫颈切口，并分离亚人膜腺的两个叶。在此之后，使用一对细点高精度钳子小心地去除周围的结缔组织和胸腺覆盖卡琳娜。通过先分离表皮水平的近端，然后解剖气管分叉水平的端端，可释放气管。找到表皮，将气管纵向地从表皮切到卡琳娜。首先，将气管放入含有750微升的去皮消化液的1.5毫升管中，预先加热至37摄氏度。用铝箔盖住管子，以减少直接光线的暴露，并在 200 RPM 和室温下在摇床上孵育 40 分钟。然后加入750微升DMEM与5%FBS停止反应，并将管子放在冰上。将气管转移到培养皿中。方向气管与上皮面朝上。纵向解剖气管具有半圆柱形，由旋转环保持。上皮在凹面上。使用直钳，将气管的表皮区域系在培养皿上，并使用大小为 22 的处置手术刀将气管上的上皮擦掉。上皮层将作为半透明板分开。使用手术刀切碎上皮，将上皮层转移到两毫升管。用 750 微升的 Tyrode I 缓冲液冲洗 Petri 盘，然后将其转移到包含上皮层的管中。用铝箔盖住管子，以减少直接接触直光，并在 200 RPM 的摇床上孵育 37 摄氏度，持续 30 分钟。然后添加750微升的冷泰洛德II缓冲液。大力旋转消化的组织20至30秒。使用连接到 18 量针的注射器，将均质三酯三酯三酯 10 次。在此之后，切换到 21 量表针和三刺激 10 到 20 次。通过100微米滤株将细胞过滤成50毫升的圆锥管。以 30 比 1 的体积比添加冷 FACS 缓冲液。在350倍g和4摄氏度下离心10分钟。丢弃上清液，将颗粒重新在冷 FACS 缓冲液中。将此悬浮液转移到 12 乘 75 毫米聚苯乙烯管中。在350倍g和4摄氏度下再次离心10分钟。丢弃上一杯，将颗粒重新在 100 微升的 FACS 缓冲液中。接下来，加入一微升抗小鼠CD1632阻断抗体，阻断非特异性结合，在冰上孵育15分钟。然后在文本协议中概述的各自等型对中添加抗体。在冰上孵育45分钟，同时防止直接光线。在此之后，添加 4.5 毫升的冷 FACS 缓冲液并混合。在350倍的g和4摄氏度的离心机。丢弃上清液，将颗粒重新在 300 微升的冷 FACS 缓冲液中。在流动细胞计量排序之前立即添加碘化丙二。在这项研究中，从ChAT eGFP乙酰胆碱荧光测量小鼠的气管刷细胞被成功分离为RNA测序。通过向前和侧面散射角从碎片中识别细胞。使用正向散射高度和宽度以及侧面散射高度和宽度排除双精度值。双精度值是具有高宽度值的单元格。在单细胞内，活细胞被确定为碘化阴性。在活的单细胞中，CD45 低至负细胞根据等型控制进行识别。在CD45低负细胞中，EPCAM阳性细胞在F1C通道中也是eGFP阳性的，是刷细胞的种群。刷细胞号通过接触微生物代谢物和原生动物而改变，因此反映了机构微生物群的变异性。因此，我们建议通过荧光显微镜估计刷细胞的数量，通过流动细胞测量排序来测量预期隔离的刷细胞数量。确保正确分离气管的上皮层，因为它决定孤立的刷细胞的产生。分离的气管刷细胞可用于广泛的测定，如RNA测序、细胞培养和功能分析。

Research

JoVE Journal

Immunology and Infection

Isolation of Mouse Peritoneal Cavity Cells

小鼠腹膜腔细胞的分离

The peritoneal cavity is a membrane-bound and fluid-filled abdominal cavity of mammals, which contains the liver, spleen, most of the gastro-intestinal ...

科研

免疫与感染

Isolation of Mouse Lung Dendritic Cells

小鼠肺树突状细胞的分离

Lung dendritic cells (DC) play a fundamental role in sensing invading pathogens 1,2 as well as in the control of tolerogenic responses 3 in the ...

Isolation and Characterization of Dendritic Cells and Macrophages from the Mouse Intestine

从老鼠肠道树突状细胞和巨噬细胞的分离和表征

Within the intestine reside unique populations of innate and adaptive immune cells that are involved in promoting tolerance towards commensal flora and ...

A Quantitative Evaluation of Cell Migration by the Phagokinetic Track Motility Assay

细胞迁移的的Phagokinetic轨道运动MLCK的定量评价

Cellular motility is an important biological process for both unicellular and multicellular organisms. It is essential for movement of unicellular ...

Isolation of Lymphocytes from Mouse Genital Tract Mucosa

小鼠生殖道黏膜淋巴细胞分离

Mucosal surfaces, including in the gastrointestinal, urogenital, and respiratory tracts, provide portals of entry for pathogens, such as viruses and ...

Isolation of Myeloid Dendritic Cells and Epithelial Cells from Human Thymus

从人类胸腺髓样树突状细胞和上皮细胞的分离

In this protocol we provide a method to isolate dendritic cells (DC) and epithelial cells (TEC) from the human thymus. DC and TEC are the major antigen ...

Isolation of Double Negative &#945;&#946; T Cells from the Kidney

Isolation of Double Negative ÃƒÅ½Ã‚Â±ÃƒÅ½Ã‚Â² T Cells from the Kidney

从肾脏双重否定αβ性T细胞的分离

There is currently no standard protocol for the isolation of DN T cells from the non-lymphoid tissues despite their increasingly reported involvement in ...

Derivation of T Cells In Vitro from Mouse Embryonic Stem Cells

Derivation of T Cells In Vitro from Mouse Embryonic Stem Cells

对T细胞推导<em&gt;在体外</em&gt;从小鼠胚胎干细胞

The OP9/OP9-DL1 co-culture system has become a well-established method for deriving differentiated blood cell types from embryonic and hematopoietic ...

High-throughput Quantitative Real-time RT-PCR Assay for Determining Expression Profiles of Types I and III Interferon Subtypes

高通量实时定量RT-PCR检测方法的确定I型和III型干扰素亚型的表达谱

Described in this report is a qRT-PCR assay for the analysis of seventeen human IFN subtypes in a 384-well plate format that incorporates highly specific ...

Isolation of Sertoli Cells and Peritubular Cells from Rat Testes

从大鼠睾丸支持细胞的分离和管周细胞

The testis, and in particular the male gamete, challenges the immune system in a unique way because differentiated sperm first appear at the time of ...