Name: mouse adipose tissue collection and processing for rna analysis
Uploaded: 2018-01-31T14:00:00
Description: Watch this Scientific Journal Video about Mouse Adipose Tissue Collection and Processing for RNA Analysis at JoVE.com

这项工作得到了加拿大糖尿病患者的支持。

在该程序中使用的小鼠的护理符合加拿大动物保护委员会规定的实验动物的护理和使用标准。所有的程序都由大学动物保护和使用委员会在密友研究中心批准。
1. 雄性小鼠尸检和脂肪组织的收集
<ol><li>根据学习目标制作实验组。本研究从两组雄性小鼠的 C57Bl/6 背景 (n=12-14/group) 中采集样本。确保在这里使用的小鼠有12-15 周的年龄, 并且在12小时的光照/暗循环中保持正常 (N) 或...

<ol>
	<li>Guh, D. P., 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+incidence+of+co-morbidities+related+to+obesity+and+overweight:+a+systematic+review+and+meta-analysis.">The incidence of co-morbidities related to obesity and overweight: a systematic review and meta-analysis.</a> BMC. Public Health. 9, 88 (2009).</li><li>Wronska, A., Kmiec, Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Structural+and+biochemical+characteristics+of+various+white+adipose+tissue+depots.">Structural and biochemical characteristics of various white adipose tissue depots.</a> Acta Physiol (Oxf). 205 (2), 194-208 (2012).</li><li>Cannon, B., Nedergaard, J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Brown+adipose+tissue:+function+and+physiological+significance.">Brown adipose tissue: function and physiological significance.</a> Physiol Rev. 84 (1), 277-359 (2004).</li><li>Holland, N. T., Smith, M. T., Eskenazi, B., Bastaki, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Biological+sample+collection+and+processing+for+molecular+epidemiological+studies.">Biological sample collection and processing for molecular epidemiological studies.</a> Mutat Res. 543 (3), 217-234 (2003).</li><li>Ibrahim, M. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Subcutaneous+and+visceral+adipose+tissue:+structural+and+functional+differences.">Subcutaneous and visceral adipose tissue: structural and functional differences.</a> Obes Rev. 11 (1), 11-18 (2010).</li><li>Mann, A., Thompson, A., Robbins, N., Blomkalns, A. 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C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=DNA,+RNA,+and+protein+extraction:+the+past+and+the+present.">DNA, RNA, and protein extraction: the past and the present.</a> J Biomed Biotechnol. 2009, 574398 (2009).</li><li>Sellin Jeffries, M. K., Kiss, A. J., Smith, A. W., Oris, J. 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J., Walsh, K. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Adipokines:+a+link+between+obesity+and+cardiovascular+disease.">Adipokines: a link between obesity and cardiovascular disease.</a> J Cardiol. 63 (4), 250-259 (2014).</li><li>Taylor, S. C., Mrkusich, E. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+state+of+RT-quantitative+PCR:+firsthand+observations+of+implementation+of+minimum+information+for+the+publication+of+quantitative+real-time+PCR+experiments+(MIQE).">The state of RT-quantitative PCR: firsthand observations of implementation of minimum information for the publication of quantitative real-time PCR experiments (MIQE).</a> J Mol Microbiol Biotechnol. 24 (1), 46-52 (2014).</li><li>Hummon, A. B., Lim, S. R., Difilippantonio, M. 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随着 HF 饮食喂养, 肥胖小鼠发现有增加的身体和白脂肪组织重量相比, 喂食一个 N 饮食小鼠。用苯酚溶液提取的 RNA 具有纯度好的样品。瘦素是脂肪主要由脂肪组织产生的, 并且与脂肪质量16呈正相关。正如所料, 瘦素 mRNA 表达增加的肥胖小鼠相伴与他们的脂肪质量。
此方法有几个关键步骤。主要一个是一个白色脂肪组织仓库的污染与另一个, 因为它是已知的?...

肥胖是一种世界性的流行病, 可能导致并发症, 如2型糖尿病1。饮食诱导的肥胖和转基因动物模型经常用于肥胖及其相关并发症的研究。传统上, 白脂肪组织被称为过剩能量的储存室, 主要由脂质组成, 而褐色脂肪组织将能量转化为热能2,3。脂肪组织是动态的, 并将扩大和收缩取决于许多因素, 如食物摄入量和体力活动。因此, 为了确定促成这些变化的因素, 需要有足够的脂肪组织收集和处理4。
在白色脂肪组织中, 一般认为皮下和内脏脂肪库有不同的性质, 如解剖定位和功能2,5。因此, 为了避免产生冲突的结果或大的变异性, 需要注意避免这些不同的脂肪库之间的交叉污染收集脂肪垫。
此外, 从小鼠白脂肪组织中分离 RNA 或蛋白质有三大挑战。首先, 在肥胖小鼠身上收集脂肪垫并不是一件容易的事, 因为与其他器官如肾脏和心脏6相比, 不同的白色脂肪库的边界并不总是清晰的。其次, 由于脂肪组织的高脂质含量, 在 RNA 或蛋白质分离期间, 一层油脂漂浮在顶部, 防止直接进入样品。第三, 相对于褐色脂肪组织或其他组织, 白脂肪组织有相当低的 RNA 和蛋白质含量, 这是主要的关注, 当使用小鼠, 喂食正常 (N) 饮食和小鼠, 预计将有低脂肪质量 (即KO 模型, 药物治疗, 运动训练等)7,8。
因此, 选择适当的方法分离 RNA 从脂肪组织是关键的。苯酚/氯仿萃取的替代方法是商业套件。它们通常基于最初的苯酚提取步骤, 然后在一列9上进行 RNA 纯化。然而, 这些套件通常更昂贵, 并提供较低的产量样本, 而 RNA 质量可能是可变的, 但更少的时间消耗。然而, 这里所描述的苯酚溶液/氯仿萃取的最大优点之一是可能从单个样本10中分离出 RNA、DNA 和蛋白质。由于小鼠脂肪垫通常是小的, 并给出少量的 RNA 和蛋白质 (特别是在精益小鼠模型), 这些协议最大化的数据, 你可以得到一个小样本。
本文的目的是详细描述一个方法, 以确保足够的样本收集从三小鼠白脂肪组织仓库, 以及数量和质量的 RNA 隔离。通过遵循该协议获得的 RNA 可用于实时 PCR 检测。该协议不是为了 RNA 分离培养的原发脂肪细胞。

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			<td height="21" style="height:21px;width:457px;">1 mL seringes</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td style="width:167px;"></td>
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			<td height="25" style="height:25px;">1X TE solution (10 mM Tris-HCl and 1 mM EDTA&#8226;Na2. pH 8.0)</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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			<td height="21" style="height:21px;width:457px;">22 G needles</td>
			<td style="width:189px;"></td>
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			<td height="21" style="height:21px;width:457px;">26 G needles</td>
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			<td height="21" style="height:21px;width:457px;">75% Ethanol</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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			<td height="21" style="height:21px;width:457px;">Block heater (dry bath)</td>
			<td style="width:189px;"></td>
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			<td></td>
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			<td height="21" style="height:21px;width:457px;">Chloroform</td>
			<td>Sigma</td>
			<td>C2432-500mL</td>
			<td></td>
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			<td height="21" style="height:21px;width:457px;">dATP&#160;&#160;&#160;</td>
			<td style="width:189px;">Thermo scientific</td>
			<td style="width:189px;">R0141</td>
			<td></td>
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			<td height="21" style="height:21px;width:457px;">dCTP&#160;&#160;</td>
			<td style="width:189px;">Thermo scientific</td>
			<td style="width:189px;">R0151</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">dGTP&#160;&#160;</td>
			<td style="width:189px;">Thermo scientific</td>
			<td style="width:189px;">R0161</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">DNase I (1 U/&#181;l)&#160;</td>
			<td style="width:189px;">Thermo scientific</td>
			<td style="width:189px;">EN0521</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">dTTP&#160;</td>
			<td style="width:189px;">Thermo scientific</td>
			<td style="width:189px;">R0171</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Faststart Universal SYBR green Master (Rox)</td>
			<td style="width:189px;">Roche</td>
			<td style="width:189px;">4913922001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Faststart universal SYBR green master (Rox) fluorescent dye&#160;</td>
			<td style="width:189px;">Roche</td>
			<td style="width:189px;">4913914001</td>
			<td></td>
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			<td height="21" style="height:21px;width:457px;">Filtered tips</td>
			<td style="width:189px;"></td>
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			<td height="21" style="height:21px;width:457px;">Forceps&#160;</td>
			<td style="width:189px;">Instrumentarium</td>
			<td>HB275</td>
			<td></td>
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			<td height="21" style="height:21px;width:457px;">Gauze</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
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			<td height="21" style="height:21px;width:457px;">Hammer</td>
			<td style="width:189px;"></td>
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			<td></td>
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			<td height="21" style="height:21px;width:457px;">High fat rodent diet</td>
			<td>Bio-Serv, Frenchtown, NJ</td>
			<td style="width:189px;">F3282</td>
			<td></td>
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			<td height="21" style="height:21px;width:457px;">Isopropanol&#160;</td>
			<td>Laboratoire MAT</td>
			<td>IH-0101</td>
			<td></td>
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		<tr height="39">
			<td height="39" style="height:39px;width:457px;">Leptin forward PCR primer (5&#8217;-GGGCTTCACCCCATTCTGA-3&#8217;) 10 uM</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="39">
			<td height="39" style="height:39px;width:457px;">Leptin reverse PCR primer (5&#8217;-GGCTATCTGCAGCACATTTTG-3&#8217;) 10 uM</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Liquid nitrogen</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Maxima Reverse Transcriptase (enzyme and 5x buffer)</td>
			<td style="width:189px;">Thermo scientific</td>
			<td style="width:189px;">EP0742</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Nanopure water (referred as ultrapure water)</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Nitrile examination gloves</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Nitrile gloves</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
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			<td height="39" style="height:39px;width:457px;">Normal rodent diet</td>
			<td style="width:189px;">Harlan Laboratories, Madison, WI</td>
			<td style="width:189px;">Harlan 2018</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">P1000 pipetman</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">P2 pipetman</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">P20 pipetman</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">P200 pipetman</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Phenol solution (TRIzol)&#160;</td>
			<td style="width:189px;">Ambion Life Technologies</td>
			<td style="width:189px;">15598018</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Pre-identified aluminium foil</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;">Quartz spectrophotometer cuvette</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Rack for PCR tube strips</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Racks for RT-PCR tube strips</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Random hexamers&#160;</td>
			<td style="width:189px;">Invitrogen</td>
			<td style="width:189px;">58875</td>
			<td></td>
		</tr>
		<tr height="41">
			<td height="41" style="height:41px;width:457px;">Real-time PCR Rotor Gene system&#160;</td>
			<td style="width:189px;">Corbett research</td>
			<td style="width:189px;">RG-3000 Rotor-Gene thermal cycler</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Refrigerated bench-top centrifuge</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">RiboLock RNase Inhibitor&#160;</td>
			<td style="width:189px;">Thermo scientific</td>
			<td style="width:189px;">EO0381</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">RNase-free 1.5 mL eppendorf tubes</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">RNase-free 1.5 mL screw cap tubes</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">RNase-free PCR tube strips (0.2 mL) and caps</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">RNase-free water&#160;</td>
			<td style="width:189px;">Hyclone</td>
			<td style="width:189px;">SH30538.02</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">RT-PCR machine</td>
			<td style="width:189px;">Qiagen</td>
			<td style="width:189px;">Rotor-Gene Corbett 3000</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">RT-PCR tube strips (0.1 mL) and caps</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="39">
			<td height="39" style="height:39px;width:457px;">S16 forward PCR primer (5&#8217;-ATCTCAAAGGCCCTGGTAGC-3&#8217;) 10 uM</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="39">
			<td height="39" style="height:39px;width:457px;">S16 reverse PCR primer (5&#8217; ACAAAGGTAAACCCCGATCG-3&#8217;) 10 uM</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Spectrophotometer</td>
			<td style="width:189px;">Biochrom</td>
			<td style="width:189px;">Ultrospec 3100 pro</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Stainless steel mortar and pestle</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="77">
			<td height="77" style="height:77px;width:457px;">Surgical pads</td>
			<td style="width:189px;">Home made a foam board wrapped in a disposable absorbent underpad</td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Surgical scissors&#160;</td>
			<td style="width:189px;">Intrumentarium</td>
			<td style="width:189px;">130.450.11</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Thermal cycler</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Thermal cycler&#160;</td>
			<td style="width:189px;">Biometra</td>
			<td style="width:189px;">Thermocycler</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Vortex mixer</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:457px;">Weighing spatula</td>
			<td style="width:189px;"></td>
			<td style="width:189px;"></td>
			<td></td>
		</tr>
	</tbody>
</table>

mouse adipose tissue collection and processing for rna analysis

与其他组织相比, 白脂肪组织的 RNA 和蛋白质含量在诸如实时 PCR 和西方印迹等下游应用中有相当少的成分, 因为它主要含有脂类。RNA 分离从脂肪组织样本也有挑战性, 因为需要额外的步骤, 以避免这些脂质。在这里, 我们提出了一个程序收集三从小鼠解剖不同的白色脂肪组织, 以处理这些样本和执行 RNA 隔离。我们进一步描述了用实时 PCR 技术合成 cDNA 和基因表达实验。本协议允许减少动物的头发和血液对脂肪垫的污染, 以及在组织收集期间不同的脂肪垫之间的交叉污染。它也被优化, 以确保足够数量和质量的 RNA 提取。该协议可广泛应用于任何小鼠模型, 其中脂肪组织样本需要进行常规实验, 如实时 PCR, 但不打算与原发脂肪细胞培养分离。

按照尸检程序, 三白脂肪组织收集和加权两组小鼠 (N 和 HF 饮食喂养小鼠)。正如预期的那样, HF 饮食中的小鼠在 N 饮食 (表 1) 上与窝相比, 增加了最终体重和体重增长。这些观察伴随着超过2倍的体重增加的 PGF, 重复频率和超重的肥胖小鼠相比, 在 N 饮食。
在对分离的 RNA 进行任何实验之前, 它的纯度被评估如步骤4.9 ?...

Watch this Scientific Journal Video about Mouse Adipose Tissue Collection and Processing for RNA Analysis at JoVE.com

Mouse Adipose Tissue Collection and Processing for RNA Analysis

小鼠脂肪组织的采集和 RNA 分析处理

本文的目的是提出一步一步的程序, 收集不同的白脂肪组织的小鼠, 处理脂肪样本和提取 RNA。

Compared to other tissues, white adipose tissue has a considerably less RNA and protein content for downstream applications such as real-time PCR and ...

Research

JoVE Journal

Biochemistry

Experimental Design for Laser Microdissection RNA-Seq: Lessons from an Analysis of Maize Leaf Development

激光显微切割RNA测序实验设计：从玉米叶片发展的经验分析

Genes with important roles in development frequently have spatially and/or temporally restricted expression patterns. Often these gene transcripts are not ...

科研

生物化学

An Efficient Method for the Isolation of Highly Purified RNA from Seeds for Use in Quantitative Transcriptome Analysis

对于高度纯化RNA的种子定量转录组分析的隔离中使用的有效方法

Plant seeds accumulate large amounts of storage reserves comprising biodegradable organic matter. Humans rely on seed storage reserves for food and as ...

Toeprinting Analysis of Translation Initiation Complex Formation on Mammalian mRNAs

哺乳动物基因翻译起始复合体形成的 Toeprinting 分析

Translation initiation is the rate-limiting step of protein synthesis and represents a key point at which cells regulate their protein output. Regulation ...

Capture and Identification of RNA-binding Proteins by Using Click Chemistry-assisted RNA-interactome Capture (CARIC) Strategy

Capture and Identification of RNA-binding Proteins by Using Click Chemistry-assisted RNA-interactome Capture CARIC Strategy

利用单击化学辅助 rna-路特捕获 (无花果) 策略捕获和鉴定 rna 结合蛋白

A comprehensive identification of RNA-binding proteins (RBPs) is key to understanding the posttranscriptional regulatory network in cells. A widely used ...

Rapid Collection of Floral Fragrance Volatiles using a Headspace Volatile Collection Technique for GC-MS Thermal Desorption Sampling

使用头空间挥发性收集技术快速收集花香挥发物，用于 GC-MS 热解吸采样

Fragrances of many flower families have been sampled and the volatiles analyzed. Knowing the compounds that make up the fragrances can be an important ...

Studying RNA Interactors of Protein Kinase RNA-Activated during the Mammalian Cell Cycle

哺乳动物细胞周期内蛋白质激酶 rna 激活的 rna 相互作用研究

Protein kinase RNA-activated (PKR) is a member of the innate immune response proteins and recognizes the double-stranded secondary structure of viral ...

Rapid and Cost-Effective RNA Extraction of Rat Pancreatic Tissue

大鼠胰腺组织快速、经济高效的RNA提取

Regardless of the extraction method, optimized RNA extraction of tissues and cell lines are carried out in four stages: 1) homogenization, 2) effective ...

RNA Blot Analysis for the Detection and Quantification of Plant MicroRNAs

用于植物微RNA检测和定量的RNA斑点分析

MicroRNAs (miRNAs) are a class of endogenously expressed non-coding, ~21 nt small RNAs involved in the regulation of gene expression in both plants and ...