Name: dissection of human retina and rpe-choroid for proteomic analysis
Uploaded: 2017-11-12T14:00:00
Description: Watch this Scientific Journal Video about Dissection of Human Retina and RPE-Choroid for Proteomic Analysis at JoVE.com

VBM 得到 NIH 的资助 [K08EY020530, R01EY024665, R01EY025225, R01EY024698 和 R21AG050437], 桃乐丝杜克慈善基金会补助金: 2013103, 并研究, 以防止失明 (填料), 纽约, 纽约州。MT 和 T32GM007337 得到 NIH 的资助。

这项研究是由爱荷华大学和 #39 的机构审查委员会批准的, 并遵循《赫尔辛基宣言》中所规定的原则. 
 1. 中心和黄斑活检穿孔 <ol> <li> 打开和蝶形人眼, 如前一出版物所述, 它由4独立的组织瓣组成. 5 </li> <li> 开始时, butterflied 人眼放置在培养皿中, 将一个 4 mm 的穿孔活检工具放在凹窝上, 向下按压, 然后轻轻滚动, 直到在凹腹周围进行切口. </li>
	<li> 接下来, ?...

<ol>
	<li>Chirco, K. R., Sohn, E. H., Stone, E. M., Tucker, B. A., Mullins, R. F. <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+molecular+changes+in+the+aging+choroid:+implications+for+age-related+macular+degeneration.">Structural and molecular changes in the aging choroid: implications for age-related macular degeneration.</a> Eye (Lond). , (2016).</li><li>Zhang, 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=Defining+the+proteome+of+human+iris,+ciliary+body,+retinal+pigment+epithelium,+and+choroid.">Defining the proteome of human iris, ciliary body, retinal pigment epithelium, and choroid.</a> Proteomics. 16 (7), 1146-1153 (2016).</li><li>Funke, 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=Glaucoma+related+Proteomic+Alterations+in+Human+Retina+Samples.">Glaucoma related Proteomic Alterations in Human Retina Samples.</a> Sci Rep. 6, 29759 (2016).</li><li>Decanini, 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=Human+retinal+pigment+epithelium+proteome+changes+in+early+diabetes.">Human retinal pigment epithelium proteome changes in early diabetes.</a> Diabetologia. 51 (6), 1051-1061 (2008).</li><li>Skeie, J. M., Mahajan, V. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dissection+of+human+vitreous+body+elements+for+proteomic+analysis.">Dissection of human vitreous body elements for proteomic analysis.</a> J Vis Exp. (47), (2011).</li><li>Skeie, J. M., Mahajan, V. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Proteomic+landscape+of+the+human+choroid-retinal+pigment+epithelial+complex.">Proteomic landscape of the human choroid-retinal pigment epithelial complex.</a> JAMA Ophthalmol. 132 (11), 1271-1281 (2014).</li><li>Skeie, J. M., Tsang, S. H., Mahajan, V. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Evisceration+of+mouse+vitreous+and+retina+for+proteomic+analyses.">Evisceration of mouse vitreous and retina for proteomic analyses.</a> J Vis Exp. (50), (2011).</li><li>Skeie, J. 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=Proteomic+analysis+of+vitreous+biopsy+techniques.">Proteomic analysis of vitreous biopsy techniques.</a> Retina. 32 (10), 2141-2149 (2012).</li><li>Skeie, J. M., Mahajan, V. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Proteomic+interactions+in+the+mouse+vitreous-retina+complex.">Proteomic interactions in the mouse vitreous-retina complex.</a> PLoS One. 8 (11), e82140 (2013).</li><li>Mahajan, V. B., Skeie, J. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Translational+vitreous+proteomics.">Translational vitreous proteomics.</a> Proteomics Clin Appl. 8 (3-4), 204-208 (2014).</li><li>Skeie, J. M., Roybal, C. N., Mahajan, V. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Proteomic+insight+into+the+molecular+function+of+the+vitreous.">Proteomic insight into the molecular function of the vitreous.</a> PLoS One. 10 (5), e0127567 (2015).</li><li>Velez, 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=Precision+Medicine:+Personalized+Proteomics+for+the+Diagnosis+and+Treatment+of+Idiopathic+Inflammatory+Disease.">Precision Medicine: Personalized Proteomics for the Diagnosis and Treatment of Idiopathic Inflammatory Disease.</a> JAMA Ophthalmol. 134 (4), 444-448 (2016).</li><li>Velez, 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=Proteomic+analysis+of+elevated+intraocular+pressure+with+retinal+detachment.">Proteomic analysis of elevated intraocular pressure with retinal detachment.</a> Am J Ophthalmol Case Rep. 5, 107-110 (2017).</li><li>Skeie, J. 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=A+biorepository+for+ophthalmic+surgical+specimens.">A biorepository for ophthalmic surgical specimens.</a> Proteomics Clin Appl. 8 (3-4), 209-217 (2014).</li><li>Ferrer, I., 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=Brain+protein+preservation+largely+depends+on+the+postmortem+storage+temperature:+implications+for+study+of+proteins+in+human+neurologic+diseases+and+management+of+brain+banks:+a+BrainNet+Europe+Study.">Brain protein preservation largely depends on the postmortem storage temperature: implications for study of proteins in human neurologic diseases and management of brain banks: a BrainNet Europe Study.</a> J Neuropathol Exp Neurol. 66 (1), 35-46 (2007).</li><li>Ahmed, M. M., Gardiner, K. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Preserving+protein+profiles+in+tissue+samples:+differing+outcomes+with+and+without+heat+stabilization.">Preserving protein profiles in tissue samples: differing outcomes with and without heat stabilization.</a> J Neurosci Methods. 196 (1), 99-106 (2011).</li><li>Kanshin, E., Tyers, M., Thibault, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Sample+Collection+Method+Bias+Effects+in+Quantitative+Phosphoproteomics.">Sample Collection Method Bias Effects in Quantitative Phosphoproteomics.</a> J Proteome Res. 14 (7), 2998-3004 (2015).</li><li>Crecelius, 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=Assessing+quantitative+post-mortem+changes+in+the+gray+matter+of+the+human+frontal+cortex+proteome+by+2-D+DIGE.">Assessing quantitative post-mortem changes in the gray matter of the human frontal cortex proteome by 2-D DIGE.</a> Proteomics. 8 (6), 1276-1291 (2008).</li><li>Oka, T., Tagawa, K., Ito, H., Okazawa, H. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Dynamic+changes+of+the+phosphoproteome+in+postmortem+mouse+brains.">Dynamic changes of the phosphoproteome in postmortem mouse brains.</a> PLoS One. 6 (6), e21405 (2011).</li><li>Nagy, C., 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=Effects+of+postmortem+interval+on+biomolecule+integrity+in+the+brain.">Effects of postmortem interval on biomolecule integrity in the brain.</a> J Neuropathol Exp Neurol. 74 (5), 459-469 (2015).</li><li>Mukherjee, 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=Proteomic+analysis+of+frozen+tissue+samples+using+laser+capture+microdissection.">Proteomic analysis of frozen tissue samples using laser capture microdissection.</a> Methods Mol Biol. 1002, 71-83 (2013).</li></ol>

组织收集后, 样品处理和处理是至关重要的考虑因素14。液氮的保存优于化学固定, 因为后者可能导致蛋白质结构的破坏, 这可能会扭曲下游分析。此外, 液氮保存是首选的方法, 不涉及冻结样品。值得注意的是, 与0° c15相比, Ferrer et al.在4° c 或室温下保存的脑样品的蛋白质水平有显著差异。此外, 重要的是要小心, 当处理样品, 由于特定的化学和物理治疗前?...

视网膜、RPE 和脉络膜是复杂的组织, 在蛋白质表达、生理功能和病理敏感性方面表现出重要的区域差异1,2。例如, 与年龄相关的黄斑变性 (AMD)、视网膜色素变性和中央浆液性视网膜病变等疾病都表现出在凹、黄斑或视网膜周围的特征定位1,3, 4,6。在这里, 我们提出了一个方法来演示如何独立取样的视网膜区域。该方法的总体目标是提供一个可靠的指南, 收集的组织样本从中心, 黄斑, 周边地区的人视网膜和 RPE-脉络膜的蛋白质组分析。这一技术的发展和应用的基本原理是, 通过对这些特定的视网膜区域的蛋白质组分析, 可以获得重要的分子洞察力, 这些区域的生理和病理功能。
这种方法有望揭示相关区域疾病敏感性的蛋白质组基础, 并有助于确定新的具体治疗目标。事实上, 蛋白质组学对玻璃体及其与视网膜相互作用的研究为健康和患病组织的分子组成和功能提供了重要的洞察力5,7,8,9,10,11,12,13. 然而, 对不同的视网膜区域缺乏明确的比较蛋白质组分析。该技术将有助于支持这些急需的研究, 提供比其他方法的优势, 通过展示一个可靠的和可再生的组织收集方法。更重要的是, 该方法是非常容易获得的, 利用标准和现成的组织穿孔活检工具。我们的技术强调适当的收集和储存组织的蛋白质组处理, 使重要的考虑蛋白的稳定性和降解。因此, 这种方法是最适合的研究者考虑下游分子分析蛋白质的因素。

<table border="0" cellpadding="0" cellspacing="0" width="691">
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">4-mm skin punch biopsy tool</td>
			<td style="width:189px;">Miltex</td>
			<td style="width:119px;">REF 33-34</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">8-mm skin punch biopsy tool</td>
			<td style="width:189px;">Miltex</td>
			<td style="width:119px;">REF 33-37</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">0.12 Colibri Forceps</td>
			<td style="width:189px;">Stephens Instruments</td>
			<td style="width:119px;">S5-1145</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Wescott Scissors</td>
			<td style="width:189px;">Sklar Surgical Instruments</td>
			<td style="width:119px;">64-3146</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Microfuge tubes</td>
			<td style="width:189px;">Eppendorf</td>
			<td style="width:119px;">#022364111</td>
			<td>1.5 mL</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:216px;">Liquid Nitrogen</td>
			<td style="width:189px;">Praxair, Inc.</td>
			<td style="width:119px;">7727-37-9 [R]</td>
			<td></td>
		</tr>
	</tbody>
</table>

dissection of human retina and rpe-choroid for proteomic analysis

人视网膜由感觉 neuroretina 和底层的视网膜色素上皮 (RPE) 组成, 它与血管脉络膜层紧密地复合。视网膜的不同区域是解剖学上和分子上的区别, 促进独特的功能和证明差异易感性的疾病。蛋白质组分析的每个区域和层可以提供重要的洞察力的分子过程中的许多疾病, 包括年龄相关的黄斑变性 (AMD), 糖尿病和青光眼。然而, 在进行定量蛋白质组分析之前, 视网膜区域和层的分离是必不可少的。在这里, 我们描述了解剖和收集的中心, 黄斑, 和周边视网膜区域和底层 RPE-脉络膜复合体的方法, 涉及区域穿孔活检和手工清除组织层从人眼。一维 SDS 页以及下游蛋白质组学分析, 如液相色谱-串联质谱 (LC-ms), 可用于识别每个解剖视网膜层的蛋白质, 揭示视网膜疾病的分子标志物。

视网膜和 RPE-脉络膜组织可以以各种方式进行处理, 以适应个人的调查。收集后, 研究员将拥有视网膜和 RPE-脉络膜组织从中心地区, 外黄斑和周边视网膜 (图 1) 的样本。具体来说, 中心区域冲床将包括凹, parafovea, 和少量的相邻 perifovea。黄斑冲头包括 perifoveal 区的其余部分以及邻近近周边区域的少量。最后, 对 mid-peripheral 和远外围区域进行了外围冲压?...

Watch this Scientific Journal Video about Dissection of Human Retina and RPE-Choroid for Proteomic Analysis at JoVE.com

Dissection of Human Retina and RPE-Choroid for Proteomic Analysis

人类视网膜由功能和分子的不同区域组成, 包括黄斑、黄斑和外周视网膜。在这里, 我们描述了一个方法使用穿孔活检和手工清除组织层从人眼解剖和收集这些不同的视网膜区域的蛋白质组分析。

人视网膜解剖与 RPE-脉络膜的蛋白质组分析

The human retina is composed of the sensory neuroretina and the underlying retinal pigmented epithelium (RPE), which is firmly complexed to the vascular ...

Research

JoVE Journal

Biochemistry

Resolving Affinity Purified Protein Complexes by Blue Native PAGE and Protein Correlation Profiling

解决由蓝变性PAGE和蛋白质相关剖析亲和纯化的蛋白复合物

Most proteins act in association with others; hence, it is crucial to characterize these functional units in order to fully understand biological ...

科研

生物化学

Fractionation for Resolution of Soluble and Insoluble Huntingtin Species

可溶性和不溶性杭丁顿蛋白的分离分解

The accumulation of misfolded proteins is central to pathology in Huntington's disease (HD) and many other neurodegenerative disorders. Specifically, a ...

Split-BioID &#8212; Proteomic Analysis of Context-specific Protein Complexes in Their Native Cellular Environment

Split-BioID ÃƒÆ’Ã‚Â¢ÃƒÂ¢Ã¢â‚¬Å¡Ã‚Â¬ÃƒÂ¢Ã¢â€šÂ¬Ã‚Â Proteomic Analysis of Context-specific Protein Complexes in Their Native Cellular Environment

BioID 细胞环境中特异蛋白复合物的分离-蛋白质组学分析

To complement existing affinity purification (AP) approaches for the identification of protein-protein interactions (PPI), enzymes have been introduced ...

Purification and Reconstitution of TRPV1 for Spectroscopic Analysis

光谱分析 TRPV1 的纯化与重构

Polymodal ion channels transduce multiple stimuli of different natures into allosteric changes; these dynamic conformations are challenging to determine ...

Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis

用于稳定碳氧同位素分析的牙釉质碳酸盐的取样与预处理

Stable carbon and oxygen isotope analysis of human and animal tooth enamel carbonate has been applied in paleodietary, paleoecological, and ...

Dynamic Proteomic and miRNA Analysis of Polysomes from Isolated Mouse Heart After Langendorff Perfusion

Langendorff 灌注后离体小鼠心脏 Polysomes 的动态蛋白质组学及 miRNA 分析

Studies in dynamic changes in protein translation require specialized methods. Here we examined changes in newly-synthesized proteins in response to ...

Calibration-free In Vitro Quantification of Protein Homo-oligomerization Using Commercial Instrumentation and Free, Open Source Brightness Analysis Software

Calibration-free In Vitro Quantification of Protein Homo-oligomerization Using Commercial Instrumentation and Free, Open Source Brightness Analysis Software

利用商用仪器和自由开源亮度分析软件对蛋白质的聚齐聚进行无标定的体外定量化

Number and brightness is a calibration-free fluorescence fluctuation spectroscopy (FFS) technique for detecting protein homo-oligomerization. It can be ...

Proteomic Analysis of Human Macrophage Polarization Under a Low Oxygen Environment

低氧环境下人巨噬细胞极化的蛋白质组学分析

Macrophages are innate immune cells involved in a number of physiological functions ranging from responses to infectious pathogens to tissue homeostasis. ...

Analysis of Fucosylated Human Milk Trisaccharides in Biotechnological Context Using Genetically Encoded Biosensors

生物技术环境下的氟黏膜化人乳三糖--用基因编码生物传感器分析

Human milk oligosaccharides (HMOs) are complex carbohydrate components of human breast milk that exhibit plentiful benefits on infant health. However, ...

Analysis and Specification of Starch Granule Size Distributions

淀粉颗粒大小分布的分析和规格

Starch from all plant sources are made up of granules in a range of sizes and shapes having different occurrence frequencies, i.e., exhibiting a size and ...