Name: auditory brainstem response and outer hair cell whole-cell patch clamp recording in postnatal rats
Uploaded: 2018-05-24T12:30:00
Description: Watch this Scientific Journal Video about Auditory Brainstem Response and Outer Hair Cell Whole-cell Patch Clamp Recording in Postnatal Rats at JoVE.com

这项工作得到了973计划 (2014CB943002) 和中国国家自然科学基金 (11534013, 31500841) 赠款的支持。

所有涉及动物学科的实验性协议均由南方医科大学动物伦理委员会批准。
1. 准备实验解决方案
<ol><li>准备麻醉剂 (参见材料表): 1.5% 戊巴比妥钠溶解在 ddH2O。</li>
	<li>准备解剖解决方案 (参见材料表): 在 ddH2的1升中溶解一袋 Leiboviz 的 L-15 粉, o 将 pH 值调整为 7.3, 用1米氢氧化钠。使用前使用 osmometer 和 10 mM HEPES 将渗透调整为 300-330 mOsm。...

<ol>
	<li>He, D. Z., Zheng, J., Kalinec, F., Sacchi Kakehata, S. S. a. n. t. o. s. -., J, <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Tuning+in+to+the+amazing+outer+hair+cell:+membrane+wizardry+with+a+twist+and+shout.">Tuning in to the amazing outer hair cell: membrane wizardry with a twist and shout.</a> J Membr Biol. 209, 119-134 (2006).</li><li>Dallos, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Cochlear+amplification,+outer+hair+cells+and+prestin.">Cochlear amplification, outer hair cells and prestin.</a> Curr Opin Neurobiol. 18, 370-376 (2008).</li><li>Zheng, J., 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=Prestin+is+the+motor+protein+of+cochlear+outer+hair+cells.">Prestin is the motor protein of cochlear outer hair cells.</a> Nature. 405, 149-155 (2000).</li><li>Abe, 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=Developmental+expression+of+the+outer+hair+cell+motor+prestin+in+the+mouse.">Developmental expression of the outer hair cell motor prestin in the mouse.</a> J Membr Biol. 215, 49-56 (2007).</li><li>Waguespack, J., Salles, F. T., Kachar, B., Ricci, A. J. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Stepwise+morphological+and+functional+maturation+of+mechanotransduction+in+rat+outer+hair+cells.">Stepwise morphological and functional maturation of mechanotransduction in rat outer hair cells.</a> J Neurosci. 27, 13890-13902 (2007).</li><li>Zhang, L. I., Bao, S., Merzenich, 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=Persistent+and+specific+influences+of+early+acoustic+environments+on+primary+auditory+cortex.">Persistent and specific influences of early acoustic environments on primary auditory cortex.</a> Nat Neurosci. 4, 1123 (2001).</li><li>De, V. -. S. E., Chang, E. F., Bao, S., Merzenich, 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=Critical+period+window+for+spectral+tuning+defined+in+the+primary+auditory+cortex+(A1)+in+the+rat.">Critical period window for spectral tuning defined in the primary auditory cortex (A1) in the rat.</a> J Neurosci. 27, 180-189 (2007).</li><li>He, D. Z., Evans, B. N., Dallos, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=First+appearance+and+development+of+electromotility+in+neonatal+gerbil+outer+hair+cells.">First appearance and development of electromotility in neonatal gerbil outer hair cells.</a> Hearing Res. 78, 77-90 (1994).</li><li>Hang, J., 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=Synchronized+Progression+of+Prestin+Expression+and+Auditory+Brainstem+Response+during+Postnatal+Development+in+Rats.">Synchronized Progression of Prestin Expression and Auditory Brainstem Response during Postnatal Development in Rats.</a> Neural Plast. , 4545826 (2016).</li><li>Ehret, G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Development+of+absolute+auditory+thresholds+in+the+house+mouse+(Mus+musculus).">Development of absolute auditory thresholds in the house mouse (Mus musculus).</a> J Am Audiol Soc. 1, 179-184 (1976).</li><li>M&#248;ller, A. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Hearing:anatomy, physiology, and disorders of the auditory system. , (2006).</li><li>He, D. Z., Zheng, J., Edge, R., Dallos, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Isolation+of+cochlear+inner+hair+cells.">Isolation of cochlear inner hair cells.</a> Hearing Res. 145, 156-160 (2000).</li><li>Tang, J., Pecka, J. L., Tan, X., Beisel, K. W., He, D. Z. Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Engineered+Pendrin+Protein,+an+Anion+Transporter+and+Molecular+Motor.">Engineered Pendrin Protein, an Anion Transporter and Molecular Motor.</a> J Biological Chem. 286, 31014-31021 (2011).</li><li>Fu, 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=The+Effects+of+Urethane+on+Rat+Outer+Hair+Cells.">The Effects of Urethane on Rat Outer Hair Cells.</a> Neural Plast. 2016, 1-11 (2016).</li></ol>

在11岁以下的老鼠中, 听觉皮层可能没有反应出对声音刺激的动作电位6,7。因此, 后天11被描述为 "听觉发作"10。听力发病前听力功能的发展尚未得到很好的研究。使用类似的方法, 成人 ABR 记录, 我们证明, ABRs 可以引起的纯音调爆裂的鼠幼崽比 P11 (图 1)。然而, 从大鼠幼崽获得的 ABR 波形显示出与成年动物不同的特?...

耳蜗感觉毛细胞的两个不同功能是哺乳动物听觉的关键: mechanoelectric 转导 (见) 和 electromotility1,2。通过在发束中遇到的通道, IHCs (IHCs) 和 OHCs 将声音振动转换成膜电位的变化, 以及支配螺旋神经节神经元的电信号。OHCs 改变其细胞长度与膜电位, 放大低电平声音的振动。这种活动称为 electromotility 是由位于 OHCs3侧壁的运动蛋白 prestin 所衍生。
在许多物种中, 包括啮齿类动物, 听觉功能是不成熟的早期出生的时代4,5。在听觉皮层中, 在听觉皮质上没有任何动作电位可以检测到声音信号6,7。耳蜗的形态学和功能的发展已被广泛研究的老鼠, 沙鼠, 鼠4,5,8。毛发细胞的 mechanotransduction 和 electromotility 也在早期生命世纪的5中发展起来。
为评价大鼠不同出生年龄的听觉敏感性, 研制了一种听觉脑干反应 (ABR) 记录方法。全细胞贴片钳是研究 OHCs electrophysiologically 的理想技术。然而, 与神经元和其他上皮细胞中的膜片钳相比, 全细胞封闭率低, 限制了孤立 OHCs electromotility 的调查。
在这里, 我们描述了一个程序, 以调查 OHCs 的形态和 electrophysiologically 在急性分离的耳蜗从产后大鼠。该方法可对调节内毛细胞发育和功能的分子机制进行改进。

<table>
	<tbody>
		<tr>
			<td>Anesthetic</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Pentobarbital sodium</td>
			<td>Sigma</td>
			<td>P3761</td>
			<td>1.5% in water</td>
		</tr>
		<tr>
			<td>Name</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>Dissection solution</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Leiboviz&#39;s L-15 Medium</td>
			<td>Life Technologies</td>
			<td>41300-039</td>
			<td>1 pack in 1 L water</td>
		</tr>
		<tr>
			<td>Collagenase IV</td>
			<td>Sigma</td>
			<td>C5138</td>
			<td>2 mg/mL in L-15</td>
		</tr>
		<tr>
			<td>HEPES</td>
			<td>Sigma</td>
			<td>7365-45-9</td>
			<td>10 mM</td>
		</tr>
		<tr>
			<td>Name</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>Immunostaining solutions</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>PBS</td>
			<td>Thermo Fisher Scientific</td>
			<td>10010023</td>
			<td>PH 7.3</td>
		</tr>
		<tr>
			<td>Paraformaldehyde</td>
			<td>Sigma</td>
			<td>158127</td>
			<td>4% in PBS</td>
		</tr>
		<tr>
			<td>Triton X-100</td>
			<td>Amresco</td>
			<td>ZS-0694</td>
			<td>0.3% in PBS</td>
		</tr>
		<tr>
			<td>Normal goat serum</td>
			<td>Thermo Fisher Scientific</td>
			<td>10000C</td>
			<td>10% in PBS</td>
		</tr>
		<tr>
			<td>prestin antibody</td>
			<td>Santa Cruz</td>
			<td>SC-22694</td>
			<td>dil 1:200</td>
		</tr>
		<tr>
			<td>Alexa Fluor 488-conjugated antibody</td>
			<td>Thermo Fisher Scientific</td>
			<td>A-11055</td>
			<td>dil 1:600</td>
		</tr>
		<tr>
			<td>Phalloidin-Tetramethylrhodamine B isothiocyanate</td>
			<td>Sigma</td>
			<td>P1951</td>
			<td>dil 1:200</td>
		</tr>
		<tr>
			<td>DAPI</td>
			<td>Solarbio</td>
			<td>C0060</td>
			<td>dil 1:20</td>
		</tr>
		<tr>
			<td>Name</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>Extracellular solution</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Leiboviz&#39;s L-15 Medium</td>
			<td>Life Technologies</td>
			<td>41300-039</td>
			<td>1 pack in 1 L water</td>
		</tr>
		<tr>
			<td>HEPES</td>
			<td>Sigma</td>
			<td>7365-45-9</td>
			<td>10 mM</td>
		</tr>
		<tr>
			<td>Name</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>Intracellular solution</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>CsCl</td>
			<td>Sigma</td>
			<td>7647-17-8</td>
			<td>140 mM</td>
		</tr>
		<tr>
			<td>MgCl2</td>
			<td>Sigma</td>
			<td>7791-18-6</td>
			<td>2 mM</td>
		</tr>
		<tr>
			<td>EGTA</td>
			<td>Sigma</td>
			<td>67-42-5</td>
			<td>10 mM</td>
		</tr>
		<tr>
			<td>HEPES</td>
			<td>Sigma</td>
			<td>7365-45-9</td>
			<td>10 mM</td>
		</tr>
		<tr>
			<td>Name</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>Equipment</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Osmometer</td>
			<td>Gonotec</td>
			<td>OSMOMAT 3000 basic</td>
			<td></td>
		</tr>
		<tr>
			<td>Forcep</td>
			<td>WPI</td>
			<td>14095</td>
			<td>Tweezers dumont</td>
		</tr>
		<tr>
			<td>Micropipette puller</td>
			<td>Sutter Instrument</td>
			<td>MODLE-P97</td>
			<td></td>
		</tr>
		<tr>
			<td>Micro Forge</td>
			<td>Narishigen</td>
			<td>MF-830</td>
			<td></td>
		</tr>
		<tr>
			<td>Mini Operating System</td>
			<td>Sutter Instrument</td>
			<td>MP-285</td>
			<td></td>
		</tr>
		<tr>
			<td>MultiClamp</td>
			<td>Axon</td>
			<td>700B</td>
			<td></td>
		</tr>
		<tr>
			<td>Low-Noise Data Acquisition System</td>
			<td>Axon</td>
			<td>1440A</td>
			<td></td>
		</tr>
		<tr>
			<td>ES1 speaker</td>
			<td>Tucker-Davis Technologies</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>TDT system 3</td>
			<td>Tucker-Davis Technologies</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Name</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>Software</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>SigGenRP software</td>
			<td>Tucker-Davis Technologies</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>BioSigRP software</td>
			<td>Tucker-Davis Technologies</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>jClamp</td>
			<td>Scientific Solutions</td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>Name</td>
			<td>Company</td>
			<td>Catalog Number</td>
			<td>Comments</td>
		</tr>
		<tr>
			<td>Animal</td>
			<td></td>
			<td></td>
			<td></td>
		</tr>
		<tr>
			<td>SD rat</td>
			<td>Experimental Animal Center of Southern Medical University</td>
			<td></td>
			<td></td>
		</tr>
	</tbody>
</table>

auditory brainstem response and outer hair cell whole-cell patch clamp recording in postnatal rats

外毛细胞是哺乳动物耳蜗内两种感觉毛细胞之一。它们通过受体电位改变细胞长度, 放大低电平声信号的弱振动。OHCs 外毛细胞的形态和电生理特性在产后早期发育。外毛细胞的成熟可能有助于听觉系统的发展。然而, OHCs 的发展过程还没有得到很好的研究。这部分是由于难以用电生理方法来测量它们的功能。为了开发一种简单的方法来解决上述问题, 我们在这里描述了一步一步的协议, 以研究 OHCs 在急性离型耳蜗从产后大鼠的功能。通过这种方法, 我们可以对纯色调刺激的耳蜗反应进行评价, 并对 OHCs 中运动蛋白 prestin 的表达水平和功能进行研究。该方法也可用于研究内毛细胞 (IHCs)。

ABR 可以从7岁以上的麻醉鼠幼崽 (P7) 使用纯音调爆发 (图 1A) 中诱发。如图 1B所示, 从鼠幼崽获得的 ABR 波形仅显示三到四个小振幅的不同波。通常在成年动物的 ABR 波形中观察到七峰值 (图 1B)。
对于以下染色和电生理测量, 大鼠内耳从颞骨进行了新的解剖。我们...

Watch this Scientific Journal Video about Auditory Brainstem Response and Outer Hair Cell Whole-cell Patch Clamp Recording in Postnatal Rats at JoVE.com

Auditory Brainstem Response and Outer Hair Cell Whole-cell Patch Clamp Recording in Postnatal Rats

本协议描述的方法, 记录的听觉脑干反应的产后鼠幼崽。为研究外发细胞的功能发育情况, 本文分步介绍了全细胞膜片钳在分离外毛细胞中的实验过程。

产后大鼠听觉脑干反应及外毛细胞全细胞贴片钳记录

The outer hair cell is one of the two types of sensory hair cells in the mammalian cochlea. They alter their cell length with the receptor potential to ...

Research

JoVE Journal

Neuroscience

Patch Clamp Recordings in Inner Ear Hair Cells Isolated from Zebrafish

膜片钳记录在内耳毛细胞的分离斑马鱼

Patch  clamp analyses of the voltage-gated channels in sensory hair cells isolated  from a variety of species have been described previously1-4 but this  ...

科研

神经科学

Whole Cell Patch Clamp for Investigating the Mechanisms of Infrared Neural Stimulation

全细胞膜片钳红外神经刺激机制的调查

It has been  demonstrated in recent years that pulsed, infrared laser light can be used to  elicit electrical responses in neural tissue, independent of ...

Whole-cell Patch-clamp Recordings from Morphologically- and Neurochemically-identified Hippocampal Interneurons

从Morphologically-和确定的Neurochemically海马的interneurons全细胞膜片钳记录

GABAergic inhibitory interneurons play a central role within neuronal circuits of the brain. Interneurons comprise a small subset of the neuronal ...

Whole-cell Patch-clamp Recordings in Brain Slices

在脑片全细胞膜片钳记录

Whole-cell patch-clamp recording is an electrophysiological technique that allows the study of the&#160;electrical properties of a substantial part of the ...

Whole-cell Patch-clamp Recordings for Electrophysiological Determination of Ion Selectivity in Channelrhodopsins

全细胞贴片记录用于电泳生理测定通道视紫质中的离子选择性

Over the past decade, channelrhodopsins became indispensable in neuroscientific research where they are used as tools to non-invasively manipulate ...

Preparations and Protocols for Whole Cell Patch Clamp Recording of Xenopus laevis Tectal Neurons

Preparations and Protocols for Whole Cell Patch Clamp Recording of Xenopus laevis Tectal Neurons

爪蟾Tectal 神经元全细胞膜片钳记录的制备与协议

The Xenopus tadpole retinotectal circuit, comprised of the retinal ganglion cells (RGCs) in the eye which form synapses directly onto neurons in the optic ...

Cochlear Implant Surgery and Electrically-evoked Auditory Brainstem Response Recordings in C57BL/6 Mice

c57bl6 小鼠耳蜗植入术与电唤起脑干反应记录

Cochlear implants (CIs) are neuroprosthetic devices that can provide a sense of hearing to deaf people. However, a CI cannot restore all aspects of ...

Preparation of Acute Spinal Cord Slices for Whole-cell Patch-clamp Recording in Substantia Gelatinosa Neurons

凝胶神经元全细胞斑块夹的急性脊髓切片的制备

Recent whole-cell patch-clamp studies from substantia gelatinosa (SG) neurons have provided a large body of information about the spinal mechanisms ...

Evaluation of Synaptic Multiplicity Using Whole-cell Patch-clamp Electrophysiology

全细胞膜片电生理方法对突触倍数的评价

In the central nervous system, a pair of neurons often form&#160;multiple synaptic contacts and/or functional neurotransmitter release sites (synaptic ...

Evaluation of Auditory Brainstem Response in Chicken Hatchlings

鸡幼崽听觉脑干反应的评价

The auditory brainstem response (ABR) is an invaluable assay in clinical audiology, non-human animals, and human research. Despite the widespread use of ...