Name: genome-wide analysis of hdac inhibitor-mediated modulation of micrornas and mrnas in b cells induced to undergo class-switch dna recombination and plasma cell differentiation
Uploaded: 2017-09-20T12:30:00
Description: Watch this Scientific Journal Video about Genome-wide Analysis of HDAC Inhibitor-mediated Modulation of microRNAs and mRNAs in B Cells Induced to Undergo Class-switch DNA Recombination and Plasma Cell

这项工作得到 NIH 资助 ai 105813 和 ai 079705 (对 pc), 狼疮研究的目标识别联盟狼疮补助金 ALR 295955 (对 pc), 和关节炎国家研究基金会研究补助金 (HZ)。TS 由中国长沙中南大学第二湘医院儿科医学中心支持, 湘医学院圣安东尼奥医科学生访问计划的背景。

该协议遵循圣安东尼奥德克萨斯大学健康科学中心机构动物保育和使用委员会的动物保育准则. 
 1. 刺激企业社会责任、血浆细胞分化和 HDI 治疗的小鼠 B 细胞 <ol> <li> 脾细胞悬浮液的制备 注: 执行除鼠标外的层流罩中的所有步骤安乐死和解剖。
	<ol> <li> 通过 CO 2 吸入安乐特定的无病原体 C57BL/6J 小鼠 (8-12 周龄)。
		<li> 将鼠标放在解剖板上, 腹部朝上。...

<ol>
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该协议提供了诱导 B 细胞类交换和细胞分化的综合方法;分析其对表观遗传调节剂的影响, 即 HDI;并检测人的 HDI 对这些细胞的 mRNA 和 miRNA 表达的影响。大多数这些方法也可以用来分析表观遗传因子对人 B 细胞功能和 mRNA/miRNA 表达的影响。qRT PCR 和 mRNA-seq/miRNA 的方法也可以用来分析 B 细胞分离的小鼠与后生调节剂, 如助。
表观遗传调节可能影响细胞增殖和活力等多种不同的细胞?...

表观遗传标记或因素, 如 DNA 甲基化, 组蛋白后修饰, 编码 rna (包括 rna), 通过改变基因表达1调节细胞功能。表观遗传修饰调节 b 淋巴细胞功能, 如免疫球蛋白类-开关 DNA 重组 (CSR), 体细胞变异 (SHM), 并分化为记忆 b 细胞或血浆细胞, 从而调节抗体和自我抗体响应2,3。CSR 和 SHM 的关键要求激活诱导的胞脱氨酶 (援助, 编码为Aicda), 这是高度诱导 B 细胞响应 t 依赖性和 t 独立抗原4。类交换/hypermutated b 细胞进一步分化成血浆细胞, 其中分泌大量的抗体在时尚严重依赖于 B 淋巴细胞诱导成熟蛋白 1 (Blimp1, 编码为Prdm1)5。B 细胞异常的表观遗传变化可能导致异常的抗体/自身抗体应答, 这会导致过敏反应或自身免疫1,4。了解后生因素, 如 rna, 调节 B 细胞内在基因表达不仅对疫苗的发展很重要, 而且对于揭示潜在的异常抗体/自身免疫反应的机制也是必不可少的。
组蛋白乙酰化和脱乙酰度是由组蛋白乙酰 (HAT) 和组蛋白乙酰 (HDAC) 催化的蛋白组蛋白的赖氨酸残留修饰。这些修改导致染色质的增加或减少的可及性, 并进一步允许或阻止转录因子或蛋白质与 DNA 的结合和基因表达的改变5,6,7,8. HDAC 抑制剂 (HDI) 是一类干扰 HDACs 功能的化合物。在这里, 我们使用 HDI (VPA) 来解决 HDAC 对 B 细胞固有基因表达谱的调节及其机制。
rna 是小的, 编码 rna 大约18到22核苷酸长度是通过几个阶段产生的。miRNA 寄主基因转录和形成发夹主 rna (pri-rna)。它们被出口到细胞质中, 其中 rna 被进一步加工成前体 rna (pre-miRNAs)。最后, 成熟的 rna 是通过 pre-miRNAs 的裂解形成的。rna 识别在其目标基因的 3 "未翻译区域" 中的互补序列6,7。通过后沉默, rna 调节细胞活动, 如增殖, 分化, 和凋亡10,11。由于多个 rna 可以针对同一 mRNA, 而一个单一的 miRNA 可能针对多个基因, 因此重要的是要有一个上下文视图的 miRNA 表达式配置文件, 以了解个人的价值和 rna 的集体效应。rna 已被证明参与 b 细胞的发育和外周分化, 以及 b 细胞阶段特异性分化, 抗体应答, 和自身免疫1,4,9。在 3 "UTR Aicda和Prdm1中, 有几个经过验证或预测的进化保守站点, 可通过 rna8进行攻击。
后生调制, 包括组蛋白后修饰和 rna, 显示一个细胞类型和细胞阶段特异的基因表达调控模式9。在这里, 我们描述的方法, 以确定人的 HDI 介导的 miRNA 和 mRNA 表达, 社会责任, 和血浆细胞分化。其中包括诱导 B 细胞接受 CSR 和细胞分化的协议;用 HDI 治疗 B 细胞;并通过 qRT PCR、miRNA-seq 和 mrna-seq10、11、12、813来分析 miRNA 和 mrna 的表达。

<table border="0" cellpadding="0" cellspacing="0" width="854">
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:528px;">C57BL/6 mice</td>
			<td style="width:152px;">Jackson Labs</td>
			<td align="right" style="width:111px;">664</td>
			<td style="width:64px;"></td>
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			<td height="21" style="height:21px;">Corning cellgro RPMI 1640 Medium (Mod.) 1X with L-Glutamine (Size: 6 x 500mL; With L-Glutamine)</td>
			<td>Fisher Scientific</td>
			<td>MT 10-040-CV&#160;</td>
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			<td>SH300</td>
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			<td height="21" style="height:21px;">HyClone Antibiotic Antimycotic Solution 100 mL</td>
			<td>Fisher Scientific - Hyclone</td>
			<td>SV3007901&#160;</td>
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			<td>Fisher Scientific</td>
			<td>44-420-3250ML</td>
			<td></td>
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			<td height="21" style="height:21px;">Falcon Cell Strainers</td>
			<td>Fisher Scientific</td>
			<td>21008-952&#160;&#160;</td>
			<td></td>
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			<td height="21" style="height:21px;">Trypan Blue Stain 0.04%</td>
			<td>GIBCO/Life Technologies/Inv</td>
			<td align="right">15250</td>
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			<td height="21" style="height:21px;">ACK Lysis Buffer&#160;</td>
			<td>Fisher Scientific</td>
			<td>BW10-548E&#160;</td>
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			<td height="21" style="height:21px;">Hausser Scientific Bright-Line Counting Chamber</td>
			<td>Fisher Scientific</td>
			<td>02-671-51B</td>
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			<td height="35" style="height:35px;width:528px;">EasySep Magnet</td>
			<td>Stem Cell Technologies</td>
			<td align="right">18000</td>
			<td></td>
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			<td height="21" style="height:21px;">Falcon Round-Bottom Polystyrene Tubes with Cap</td>
			<td>Fisher Scientific</td>
			<td>14-959-1A</td>
			<td></td>
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			<td height="21" style="height:21px;">EasySep Mouse B cell Isolation Kit</td>
			<td>Stem Cell Tech</td>
			<td align="right">19854</td>
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			<td height="21" style="height:21px;">BD Needle Only 18 Gauge 1.5 inch SHORT BEVEL 100/box&#160;</td>
			<td>BD Biosciences</td>
			<td>&#160;305199</td>
			<td></td>
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			<td height="21" style="height:21px;">PE/Cy7 anti-mouse CD138 (Syndecan-1) Antibody</td>
			<td>BioLegend&#160;</td>
			<td>142513 (25 ug)</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">PE-Cy7 B220 antibody</td>
			<td>BioLegend</td>
			<td align="right">103222</td>
			<td></td>
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			<td height="21" style="height:21px;">7-AAD (1 mg)</td>
			<td>Sigma Aldrich</td>
			<td>A9400-1MG</td>
			<td></td>
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			<td height="21" style="height:21px;">APC anti-mouse/human CD45R/B220 antibody</td>
			<td>Biolegend</td>
			<td align="right">103212</td>
			<td></td>
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			<td height="21" style="height:21px;">Mouse APC-IgG1 200 &#181;g</td>
			<td>Biolegend</td>
			<td align="right">406610</td>
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			<td height="21" style="height:21px;">FITC anti-mouse IgM Antibody</td>
			<td>Biolegend</td>
			<td align="right">406506</td>
			<td></td>
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			<td height="21" style="height:21px;">FITC anti-mouse/human CD45R/B220 Antibody</td>
			<td>Biolegend</td>
			<td align="right">103206</td>
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			<td height="21" style="height:21px;">PE Anti-Human/Mouse CD45R (B220) (RA3-6B2)</td>
			<td>Biolegend</td>
			<td align="right">103208</td>
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			<td height="21" style="height:21px;">HBSS 1X</td>
			<td>Fisher Scientific</td>
			<td>MT-21-022-CM</td>
			<td></td>
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			<td height="21" style="height:21px;">Bovine Serum Albumin, Fraction V, Heat Shock Treated&#160;</td>
			<td>Fisher Scientific</td>
			<td>BP1600-100</td>
			<td></td>
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			<td height="21" style="height:21px;">LPS 25mg (Lipopolysaccharides from Escherichia coli 055:B5)</td>
			<td>Sigma Aldrich</td>
			<td>L2880-25MG</td>
			<td></td>
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			<td height="21" style="height:21px;">Recombinant mouse IL-4 (carrier-free)</td>
			<td>BioLegend</td>
			<td>574302 (size: 10 ug)</td>
			<td></td>
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			<td height="21" style="height:21px;">Valproic acid sodium salt</td>
			<td>Sigma Aldrich</td>
			<td>P4543</td>
			<td></td>
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			<td height="21" style="height:21px;">SterilGARD e3 Class II Type A2 Biosafety Cabinet</td>
			<td>The Baker Company</td>
			<td>SG404</td>
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			<td height="22" style="height:22px;">Large-Capacity Reach-In CO2 Incubator&#160;</td>
			<td>Thermo Scientific</td>
			<td align="right">3950</td>
			<td></td>
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			<td height="21" style="height:21px;">Isotemp Digital-Control Water Baths: Model 205</td>
			<td>Fisher Scientific</td>
			<td>15-462-5Q</td>
			<td></td>
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		<tr height="21">
			<td height="21" style="height:21px;">5mL Round Bottom Polystyrene Test Tube</td>
			<td>Fisher Scientific</td>
			<td>&#160;14-959-5</td>
			<td></td>
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			<td height="21" style="height:21px;">Corning CentriStar 15ml Centrifuge Tubes&#160;</td>
			<td>Fisher Scientific&#160;</td>
			<td>05-538-59A</td>
			<td></td>
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			<td height="21" style="height:21px;">1.7 mL Microtube, clear</td>
			<td>Genesee</td>
			<td>22-282</td>
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			<td height="21" style="height:21px;">Higher-Speed Easy Reader Plastic Centrifuge Tubes 50ml</td>
			<td>Fisher Scientific</td>
			<td>06-443-18</td>
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			<td height="21" style="height:21px;">ELMI SkySpin CM-6MT</td>
			<td>ELMI</td>
			<td>CM-6MT</td>
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			<td>ELMI</td>
			<td>6M</td>
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			<td>ELMI</td>
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			<td>Fisher Scientific</td>
			<td>89130-900</td>
			<td></td>
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			<td>Fisher Scientific</td>
			<td>89130-898</td>
			<td></td>
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			<td height="21" style="height:21px;">5 mL serological pipette tips</td>
			<td>Fisher Scientific</td>
			<td>898130-896</td>
			<td></td>
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			<td height="21" style="height:21px;">48-well plates</td>
			<td>Fisher Scientific</td>
			<td>07-200-86</td>
			<td></td>
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			<td height="21" style="height:21px;">Allegra 6 Benchtop Centrifuge, Non-Refrigerated</td>
			<td>Beckman Coulter</td>
			<td align="right">366802</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">GH-3.8A Rotor, Horizontal, ARIES Smart Balance</td>
			<td>Beckman Coulter</td>
			<td align="right">366650</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Allegra 25R Benchtop Centrifuge, Refrigerated</td>
			<td>Beckman Coulter</td>
			<td align="right">369434</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">TA-15-1.5 Rotor, Fixed Angle</td>
			<td>Beckman Coulter</td>
			<td align="right">368298</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Fisher Scientific AccuSpin Micro 17</td>
			<td>Fisher Scientific</td>
			<td>13-100-675</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Fisher Scientific Analog Vortex Mixer&#160;</td>
			<td>Fisher Scientific</td>
			<td>02-215-365</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">miRNeasy Mini Kit (50)</td>
			<td>Qiagen</td>
			<td align="right">217004</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Direct-zol RNA MiniPrep kit</td>
			<td>Zymo Research</td>
			<td>R2050</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Chloroform (Approx. 0.75% Ethanol as Preservative/Molecular Biology)</td>
			<td>Fisher Scientific</td>
			<td>BP1145-1</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Rnase-Free Dnase set (50)</td>
			<td>QIAGEN</td>
			<td align="right">79254</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">NanoDrop 2000 Spectrophotometers</td>
			<td>Thermo Scientific</td>
			<td>ND-2000</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Superscript III First-strand Synthesis System RT-PCR</td>
			<td>Invitrogen</td>
			<td align="right">175013897</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">iTaq Universal SYBR Green Supermix</td>
			<td>Bio-rad&#160;</td>
			<td>172-5121</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Fisherbrand 96-Well Semi-Skirted PCR Plates, case of 25</td>
			<td>Fisher</td>
			<td style="width:111px;">14-230-244</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Microseal &#39;B&#39; Adhesive Seals</td>
			<td>Bio-Rad</td>
			<td>MSB-1001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">MyiQ Optics Module</td>
			<td>Bio-Rad</td>
			<td>170-9744</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">iCycler Chassis</td>
			<td>Bio-Rad</td>
			<td>170-8701</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Optical Kit</td>
			<td>Bio-Rad</td>
			<td>170-9752</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">BD LSR II Flow Cytometry Analyzer</td>
			<td>BD Biosciences</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">FACSDiva software</td>
			<td>BD Biosciences</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">FlowJo 10</td>
			<td>BD Biosciences</td>
			<td></td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">2100 Bioanalyzer</td>
			<td>Agilent Technologies</td>
			<td>G2943CA</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">S200 Focused-ultrasonicator</td>
			<td>Covaris</td>
			<td>S200</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">SPRIworks Fragment Library System I for Illumina</td>
			<td>Beckman Coulter</td>
			<td>A288267</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">cBot Cluster Generation Station</td>
			<td>illumina</td>
			<td>SY-312-2001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">HiSeq 2000 Genome Sequencer</td>
			<td>Illumina</td>
			<td>SY-401-1001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">TruSeq RNA Library Prep Kit v2</td>
			<td>Illumina</td>
			<td>RS-122-2001</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">TruSeq Small RNA Library Prep Kit</td>
			<td>Illumina</td>
			<td>RS-200-0012</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">NEXTflex Illumina Small RNA Sequencing Kit v3</td>
			<td>Bioo Scientific</td>
			<td>5132-05</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">2200 TapeStation</td>
			<td>Agilent</td>
			<td>G2964AA</td>
			<td></td>
		</tr>
	</tbody>
</table>

genome-wide analysis of hdac inhibitor-mediated modulation of micrornas and mrnas in b cells induced to undergo class-switch dna recombination and plasma cell differentiation

抗体应答是通过几个关键的 B 细胞内在的过程来完成的, 包括体细胞变异 (SHM), 类开关 DNA 重组 (CSR) 和血浆细胞分化。近年来, 表观遗传修饰或因素, 如组蛋白脱乙酰和 rna (rna), 已被证明与 B 细胞的遗传程序, 以形成抗体反应, 而表观遗传因素的功能障碍已发现导致自身抗体应答。分析 b 细胞的基因组全 miRNA 和 mRNA 表达对表观遗传调节因子的反应, 对于了解 b 细胞功能和抗体应答的表观遗传调节具有重要意义。在这里, 我们演示了一个协议诱导 b 细胞进行 CSR 和细胞分化, 治疗这些 b 细胞与组蛋白乙酰 (HDAC) 抑制剂 (助), 并分析 mRNA 和 rna 表达。在这个协议, 我们直接分析互补 DNA (cDNA) 序列使用下一代 mrna 测序 (mrna-seq) 和 miRNA 的技术, 测序读取的基因组, 和定量的反向转录 (qRT)-PCR。通过这些方法, 我们已经定义, 在 B 细胞中诱导的 csr 和细胞分化, 人类发展指数, 一个后生的调节器, 选择性地调节 miRNA 和 mRNA 表达, 改变 csr 和细胞分化。

使用我们的协议, 纯化 B 细胞放置 LPS (3 µg/毫升) 和 IL-4 (5 ng/毫升) 的96小时可以诱导30-40% 的 CSR 到 IgG1 和〜10% 的血浆细胞分化。在与 HDI (500µM VPA) 治疗后, 对 IgG1 的 CSR 降低到 10-20%, 而血浆细胞分化降低到 ~ 2% (图 1)。post-recombination Iμ-Cγ1和成熟的 VhDJh-Cγ1记录的数量的减少进一步证实了 HDI 对 csr 的抑制, 这是已完成的 csr 的标志。由 qRT-PCR 测量,...

Watch this Scientific Journal Video about Genome-wide Analysis of HDAC Inhibitor-mediated Modulation of microRNAs and mRNAs in B Cells Induced to Undergo Class-switch DNA Recombination and Plasma Cell

Genome-wide Analysis of HDAC Inhibitor-mediated Modulation of microRNAs and mRNAs in B Cells Induced to Undergo Class-switch DNA Recombination and Plasma Cell Differentiation

后生因素可以与基因程序相互作用, 调节基因表达, 调节 B 细胞功能。结合体外b 细胞刺激、qRT PCR、高通量 rna 序列和 mRNA 序列方法, 可以分析 b 细胞中 miRNA 和基因表达的表观遗传调控。

HDAC 抑制剂介导的 B 细胞 rna 和基因的基因组分析--诱导进行类开关 DNA 重组和血浆细胞分化

Antibody responses are accomplished through several critical B cell-intrinsic processes, including somatic hypermutation (SHM), class-switch DNA ...

Research

JoVE Journal

Immunology and Infection

Induction and Assessment of Class Switch Recombination in Purified Murine B Cells

纯净小鼠的B细胞的诱导和评估类开关重组

Humoral immunity is the branch of the immune system maintained by B cells and mediated through the secretion of antibodies. Upon B cell activation, the ...

科研

免疫与感染

Directed Differentiation of Induced Pluripotent Stem Cells towards T Lymphocytes

定向分化诱导性多潜能干细胞向T淋巴细胞

Adoptive cell transfer (ACT) of antigen-specific CD8+  cytotoxic T lymphocytes (CTLs) is a promising treatment for a variety of  malignancies 1. CTLs can  ...

Establishment of an In vitro System to Study Intracellular Behavior of Candida glabrata in Human THP-1 Macrophages

Establishment of an In vitro System to Study Intracellular Behavior of Candida glabrata in Human THP-1 Macrophages

建立一个<em&gt;在体外</em&gt;系统来研究细胞内的行为<em&gt;光滑念珠菌</em&gt;在人THP-1巨噬细胞

A cell culture model system, if a close mimic of host environmental conditions, can serve as an inexpensive, reproducible and easily manipulatable ...

Rapid Molecular Detection and Differentiation of Influenza Viruses A and B

快速分子检测和流感病毒A和B的分化

Influenza is a contagious respiratory illness caused by influenza viruses A and B in humans and causes a significant amount of morbidity and mortality ...

The Isolation, Differentiation, and Quantification of Human Antibody-secreting B Cells from Blood: ELISpot as a Functional Readout of Humoral Immunity

的分离，分化和人类的定量分泌抗体的B细胞从血液：酶联免疫斑点作为体液免疫的功能读出

The hallmark of humoral immunity is to generate functional ASCs, which synthesize and secrete Abs specific to an antigen (Ag), such as a pathogen, and are ...

Detection and Enrichment of Rare Antigen-specific B Cells for Analysis of Phenotype and Function

检测和罕见富集抗原特异性B细胞的表型和功能分析

B cells reactive with a specific antigen usually occur at a frequency of &lt;0.05% of lymphocytes. For decades researchers have sought methods to isolate ...

An In Vivo Mouse Model to Measure Na&#239;ve CD4 T Cell Activation, Proliferation and Th1 Differentiation Induced by Bone Marrow-derived Dendritic Cells

An In Vivo Mouse Model to Measure NaÃƒÆ’Ã†'Ãƒâ€šÃ‚Â¯ve CD4 T Cell Activation, Proliferation and Th1 Differentiation Induced by Bone Marrow-derived Dendritic Cells

小鼠骨髓基质树突状细胞诱导 CD4 T 细胞活化、增殖和 Th1 分化的体外模型研究

Quantification of na&#239;ve CD4 T cell activation, proliferation, and differentiation to T helper 1 (Th1) cells is a useful way to assess the role played ...

Analysis of Shear Flow-induced Migration of Murine Marginal Zone B Cells In Vitro

小鼠边缘区 b 细胞剪切流诱导迁移的体外分析

Marginal zone B cells (MZBs) are a population of B cells that reside in the mouse splenic marginal zones that envelop follicles. To reach the follicles, ...

In Vitro Differentiation Model of Human Normal Memory B Cells to Long-lived Plasma Cells

人正常记忆 b 细胞与长寿浆细胞体外分化模型

Plasma cells (PCs) secrete large amounts of antibodies and develop from B cells that have been activated. PCs are rare cells located in the bone marrow or ...