Name: single-cell microinjection for cell communication analysis
Uploaded: 2017-02-26T13:00:00
Description: Watch this Scientific Journal Video about Single-cell Microinjection for Cell Communication Analysis at JoVE.com

The authors dedicate this paper in honor of Prof. Gilberto Oliveira-Castro who introduced research in intercellular communication by gap junctions in Brazil. This work was funded by Capes, CNPQ and Faperj.

<html> 세포의 1. 준비 <ol><li> 흉선 상피 세포 라인 (IT76M1) 또는 셀의 문화를 유지하는 것은 인큐베이터에서 테스트하기 (37 ° C / 5 % CO 2). </li><li> PBS 1X와 세포를 씻으 (이 항목에 배를 반복). </li><li> 5 분 동안 세포에 트립신을 추가합니다. </li><li> 트립신 원심 분리 (5 분, 800 XG)와 함께 세포를 10 % FBS (소 태아 혈청)와 (항목 1.3 첨가 트립신 볼륨 회) 배지를 추가한다. </li><li> 혈구의 세포를 계산?...

<ol>
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R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Junctional+intercellular+communication+and+the+control+of+growth.">Junctional intercellular communication and the control of growth.</a> Biochim Biophys Acta. 560 (1), 1-65 (1979).</li><li>Alves, L. 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=Functional+gap+junctions+in+thymic+epithelial+cells+are+formed+by+connexin+43.">Functional gap junctions in thymic epithelial cells are formed by connexin 43.</a> Eur.J Immunol. 25 (2), 431-437 (1995).</li><li>Alves, L. 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=Are+there+functional+gap+junctions+or+junctional+hemichannels+in+macrophages?.">Are there functional gap junctions or junctional hemichannels in macrophages?.</a> Blood. 88 (1), 328-334 (1996).</li><li>Fonseca, P. 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=Characterization+of+connexin+30.3+and+43+in+thymocytes.">Characterization of connexin 30.3 and 43 in thymocytes.</a> Immunology letters. 94 (1-2), 65-75 (2004).</li><li>Nihei, O. 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=Modulatory+effects+of+cAMP+and+PKC+activation+on+gap+junctional+intercellular+communication+among+thymic+epithelial+cells.">Modulatory effects of cAMP and PKC activation on gap junctional intercellular communication among thymic epithelial cells.</a> BMC Cell Biol. 11, 3 (2010).</li><li>Czyz, J., Szpak, K., Madeja, Z. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+role+of+connexins+in+prostate+cancer+promotion+and+progression.">The role of connexins in prostate cancer promotion and progression.</a> Nat Rev Urol. 9 (5), 274-282 (2012).</li><li>El-Saghir, J. A., El-Habre, E. T., El-Sabban, M. E., Talhouk, R. 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L., Nedergaard, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Brain+connexins+in+demyelinating+diseases:+therapeutic+potential+of+glial+targets.">Brain connexins in demyelinating diseases: therapeutic potential of glial targets.</a> Brain Res. 1487, 61-68 (2012).</li><li>Park, H. a. n. -. A., R, S., Khanna, S. a. v. i. t. a., Sen, C. h. a. n. d. a. n. . 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W. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Functional+connections+between+cells+as+revealed+by+dye-coupling+with+a+highly+fluorescent+naphthalimide+tracer.">Functional connections between cells as revealed by dye-coupling with a highly fluorescent naphthalimide tracer.</a> Cell. 14 (3), 741-759 (1978).</li><li>Meda, P. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Probing+the+function+of+connexin+channels+in+primary+tissues.">Probing the function of connexin channels in primary tissues.</a> Methods. 20 (2), 232-244 (2000).</li><li>Klaunig, J. E., Shi, Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Assessment+of+gap+junctional+intercellular+communication.">Assessment of gap junctional intercellular communication.</a> Curr Protoc Toxicol. , (2009).</li><li>Hanani, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lucifer+yellow+-+an+angel+rather+than+the+devil.">Lucifer yellow - an angel rather than the devil.</a> J Cell Mol Med. 16 (1), 22-31 (2012).</li><li>Orci, L., Biochemistry, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Blockage+of+Cell-to-Cell+Communication+within+Pancreatic+Acini+Is+Associated+with+Increased+Basal+Release+of+Amylase+Materials+and+Methods+Preparation+of+Acini.">Blockage of Cell-to-Cell Communication within Pancreatic Acini Is Associated with Increased Basal Release of Amylase Materials and Methods Preparation of Acini.</a> Cell. 103 (August), 475-483 (1986).</li><li>Hitomi, 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=Differential+connexin+function+enhances+self-renewal+in+glioblastoma.">Differential connexin function enhances self-renewal in glioblastoma.</a> Cell Rep. 11 (7), 1031-1042 (2015).</li><li>Nihei, O. K., Campos de Carvalho, ., C, A., Spray, D. C., Savino, W., Alves, L. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=A+novel+form+of+cellular+communication+among+thymic+epithelial+cells:+intercellular+calcium+wave+propagation.">A novel form of cellular communication among thymic epithelial cells: intercellular calcium wave propagation.</a> Am J Physiol Cell Physiol. 285 (5), C1304-C1313 (2003).</li><li>Kanno, Y., Loewenstein, W. R. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Intercellular+Diffusion.">Intercellular Diffusion.</a> Science. 143 (3609), 959-960 (1964).</li><li>Alves, L. A., Nihei, O. K., Fonseca, P. C., Carvalho, A. 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간 채널에 의해 투과성 16 요구되지만, 기능적 간 간극 결합의 존재, 불 투과성 멤브레인 추적자의 사용을 확인하기 위해. 형광, 제 형광 염료는 세포 간 결합 (22), 비 접합부 (3) 사이의 막 투과성이므로 루시퍼 옐로우 염료 (15)에 의해 치환 된 관찰. 현재, 형광 추적자의 많은 다른 유형 중에서 최선의 선택 범위와 실험의 조건?...

갭 접합은 인접 셀 1 사이에서 상호 통신을 허용 간 채널입니다. 이 통신은 각각의 채널 간을 형성 connexon 또는 hemichannel에 기여 둘 이상의 이웃 셀을 연결한다. 포유 동물 세포에서, connexon는 세포질 내에서이 네 개의 경막 도메인 및 C 및 N 단자 여섯 코넥 단량체에 의해 형성된다. 간극 연접 만 이온 초 메신저 작은 대사의 흐름을 허용하지만, 또한 시냅스 전달, 심장 수축, 세포 성장과 분화 3, 4, 5, 6 등의 많은 생리적 과정에 셀룰러 통신의 여러 형태에 기여하지 7,8. 또한 갭 접합이와 관련이있다암 9, 10, 11 근위축증 일부 유전 질환 및 질병 12 탈수 초성 질환을 포함하는 많은. 간 크로스 토크의이 유형은 여러 가지 방법으로 13, 14, 15, 16에 의해 평가 될 수있다. 본 논문에서는, 우리는 살아있는 세포에서 갭 접합을 통해 셀룰러 통신을 시각화 루시퍼 노란색의 단일 세포 미세 주입을 수행하는 방법을 보여줍니다. 우리는 셀과 마이크로 피펫의 미세 조작기의 사용과 흉선 상피 세포 라인에 루시퍼 노란색 염료의 주입을 준비하는 방법에 대해 설명합니다. 일반적으로이 실험 절차는 염료와 함께로드 셀에 연결 셀의 평균에 의해 분석 될 수있다. 또한,이 방법은 갭 아래 분자량을 갖는 다른 형광 염료로 사용될 수있다약 1,000 달톤 인 접합 차단.

<table border="0" cellpadding="0" cellspacing="0" width="1228">
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:195px;">Lucifer yellow</td>
			<td style="width:71px;">Sigma</td>
			<td style="width:137px;">L0259</td>
			<td style="width:827px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:195px;">Lithium Chloride</td>
			<td style="width:71px;">Sigma</td>
			<td style="width:137px;">L4408</td>
			<td style="width:827px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:195px;">PBS tablets</td>
			<td style="width:71px;">Sigma&#160;</td>
			<td style="width:137px;">P4417</td>
			<td style="width:827px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:195px;">RPMI</td>
			<td style="width:71px;">Sigma</td>
			<td style="width:137px;">R4130</td>
			<td style="width:827px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:195px;">Bovine fetal serum</td>
			<td style="width:71px;">Cultilab</td>
			<td style="width:137px;"></td>
			<td style="width:827px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:195px;">Trypsin</td>
			<td style="width:71px;">Sigma</td>
			<td style="width:137px;">T4799</td>
			<td style="width:827px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Microscope</td>
			<td style="width:71px;">Nikon</td>
			<td style="width:137px;">TE-2000</td>
			<td>For microinjection experiments, one needs an inverted fluorescence microscope and &#64257;lters for &#64258;uorescent microscopy</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">vibration-insulated table&#160;</td>
			<td style="width:71px;">Newport</td>
			<td style="width:137px;">VH3036W-OPT</td>
			<td>A vibration-insulated table is needed to protect the experiments from vibration and avoid cell damage</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Micromanipulator</td>
			<td style="width:71px;">Narishige</td>
			<td style="width:137px;">MMO-203</td>
			<td>This equipment allows precision adjustments of the micropipette, which is needed for cell micro injection.</td>
		</tr>
		<tr height="100">
			<td height="100" style="height:100px;">Current Generator&#160;</td>
			<td style="width:71px;">Digitimer</td>
			<td style="width:137px;">DS2</td>
			<td>To produce the dye flow through the micropipette, a current below one nano ampere was given using a current generator with an electrode inside the micropipette or an amplifier which has a capacitance compensation circuit (old electrometer) or current injection functions of new patch clamp amplifiers, and the ground wire submersed in the plate dish. Alternatively, the dye can be injected by a pneumatic microinjector, following the factory recommendations.&#160;&#160;&#160;</td>
		</tr>
	</tbody>
</table>

single-cell microinjection for cell communication analysis

Gap junctions are intercellular channels that allow the communication of neighboring cells. This communication depends on the contribution of a hemichannel by each neighboring cell to form the gap junction. In mammalian cells, the hemichannel is formed by six connexins, monomers with four transmembrane domains and a C and N terminal within the cytoplasm. Gap junctions permit the exchange of ions, second messengers, and small metabolites. In addition, they have important roles in many forms of cellular communication within physiological processes such as synaptic transmission, heart contraction, cell growth and differentiation. We detail how to perform a single-cell microinjection of Lucifer Yellow to visualize cellular communication via gap-junctions in living cells. It is expected that in functional gap junctions, the dye will diffuse from the loaded cell to the connected cells. It is a very useful technique to study gap junctions since you can evaluate the diffusion of the fluorescence in real time. We discuss how to prepare the cells and the micropipette, how to use a micromanipulator and inject a low molecular weight fluorescent dye in an epithelial cell line.

이 세포는 (43) (21) 넥신에 의해 형성 기능 갭 접합을 표현 설명했다으로 흉선 상피 세포주 IT-76MI는 갭 접합에 의해 염료 커플 링을 평가하는 데 사용되었다. 피펫의 팁 아래 하나의 셀에 적용 할 때 그림 1은 루시퍼 노란색의 주입을 보여줍니다. 몇 분 후, 연결된 셀 갭 정션을 통한 형광 염료의 확산을 나타내는 형광체 (별표)가된다. 세포 및 시간 형광되었...

Watch this Scientific Journal Video about Single-cell Microinjection for Cell Communication Analysis at JoVE.com

Single-cell Microinjection for Cell Communication Analysis

우리는 살아있는 세포에서 갭 접합을 통해 셀룰러 통신을 시각화 루시퍼 노란색의 단일 세포 미세 주입을 수행하고 몇 가지 유용한 팁을 제공하는 방법을 여기에 대해 설명합니다. 우리는이 논문으로 인해 기능 갭 접합에 세포 결합의 정도를 평가하기 위해 모두 도움이 될 것으로 기대하고있다. 여기에 설명 된 모든 1,000 달톤 이하의 분자량을 가진 다른 형광 염료에 적응 원칙적으로 될 수있다.

휴대 통신 분석을위한 단일 세포 미세 주입

Gap junctions are intercellular channels that allow the communication of neighboring cells. This communication depends on the contribution of a ...

Hi, my name is Anael. I work at Oswaldo Cruz Foundation at Cellular Communication Laboratory. We study here P2 Receptors and gap injection in the context of immune system and liver.Today, I will present you the microinjection of cell. Gap injections play some physiological roles as synapse transmission, heart contractions, and others. For this technique, we can study if the gap injections are functional or not.Okay, let's see the base components of the microinjection setup. Here we have the inverted fluorescence microscope where we will see the cells. This is a CCD camera to record the results.We have here the current generator that we will introduce the dye into the cell. Next we have the holder where the microelectrode is connected. And the micro-manipulator that's connected to the holder and allow the movement of the microelectrode in the three axis, Z, Y, and X.Before start the experiment, we have to make the microelectrode.We use this borosilicate glass capillary and this equipment named polar. We attach the borosilicate capillary here. This tungsten filament we will heat to make two microelectrodes.Now the tungsten filament's heating and the wave here we will pull down to make the two microelectrodes.Easy. Our first step is to fill the microelectrode with the dye. One tip here is that you have to fill only the tip with a few microliters to do the experiment.It's not necessary to fill everything. Note with more details. Fill only the tip.Let's start an experiment. We have here the cells in the petri dish, in a sodium solution. The silver wire connected to the current generator.We have now to attach the microelectrodes in the head stage. Here in the head stage we have another silver wire also connected to the current generator. Once the microelectrode is attached, we can put it inside of the bath.Note that the tip of the pipette is carefully touching the bath. This procedure is make very carefully to avoid the crash of the tip in the bottom of the petri dish. Once inside of the bath, we can go to the microscope to look for the shadow of the micropipette.We recommend we start looking in the magnification lens. When we find the shadow of the pipette, we can move the microelectrode toward the cell using the micromanipulator. Once it's very close to the cell, we can do a test post to verify if the microelectrode's not obstructed.How we will see next. Here we are seeing the micropipette and we are adjusting the micropipette very close to the cell. We can see cell movement right and left.Then we change to the filter, fluorescence filter. We can apply hyperpolarizing pulse to test if the tip of the pipette is not obstructed. Since the micropipette is inside of the cell, we can apply hyperpolarizing pulse to load the cell with the dye.We use here the loose free yellow dye. After loading the cell with the dye, if the neighbor cells are connected by gap injections, we wait some minutes and we will see neighbor cells brightening by the diffusion of the dye by these gap injections. In our experiment we can see five cells, marked with stars, showing fluorescence.Here there is a good example of an experiment of microinjection in thymic epithelial cells, in A and B.In the figures C and D, shows a microinjection in thymic inert cell of loose free yellow and another dye, not permeable to gap injection showed in the insert. The figure E and F thymic epithelial cell line microinjected with loose free yellow and in the insert loose free yellow and a gap injection block. The results show that loose free yellow did not spread to the neighbor cells.Next we see a microinjection in thymic epithelial cells, in presence of dexamethasone and the quantification in B.Dexamethasone increased the degree of coupling, as showed in the figure B.Of 100 injections, the number of three or four cells connected was more frequent in the presence of this drug. I hope I could help beginners to do this important technique to cellular communication study. Thanks and bye bye.

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Single-cell Microfluidic Analysis of Bacillus subtilis

Single-cell Microfluidic Analysis of Bacillus subtilis

새 균의 subtilis 의 단일 셀 미세 분석

Microfluidic technology overcomes many of the limitations to traditional analytical methods in microbiology. Unlike bulk-culture methods, it offers ...

Analysis of Beta-cell Function Using Single-cell Resolution Calcium Imaging in Zebrafish Islets

Zebrafish 독도에서 단일 셀 해상도 칼슘 이미징 사용 하 여 베타 세포 기능 분석

Pancreatic beta-cells respond to increasing blood glucose concentrations by secreting the hormone insulin. The dysfunction of beta-cells leads to ...

Single-Cell Proteomics Preparation for Mass Spectrometry Analysis Using Freeze-Heat Lysis and an Isobaric Carrier

동결열 용해 및 등압 담체를 사용한 질량분석법 분석을 위한 단일 세포 단백질체학 준비

Single-cell proteomics analysis requires sensitive, quantitatively accurate, widely accessible, and robust methods. To meet these requirements, the ...

Single-Cell Suspension Preparation from Nile Tilapia Intestine for Single-Cell Sequencing

Nile tilapia is one of the most commonly cultured freshwater fish species worldwide and is a widely used research model for aquaculture fish studies. The ...

Population and Single-Cell Analysis of Antibiotic Persistence in Escherichia coli

Population and Single-Cell Analysis of Antibiotic Persistence in Escherichia coli

대장균의 항생제 지속성에 대한 개체군 및 단일 세포 분석

Antibiotic persistence refers to the capacity of small bacterial subpopulations to transiently tolerate high doses of bactericidal antibiotics. Upon ...

Isolation and Transcriptome Analysis of Plant Cell Types

식물 세포 유형의 분리 및 전사체 분석

In multicellular organisms, developmental programming and environmental responses can be highly divergent in different cell types or even within cells, ...

Multiome 10X 유전체학 분석을 위한 고품질 시료 전처리

High-Quality Brain and Bone Marrow Nuclei Preparation for Single Nuclei Multiome Assays

저자 스포트라이트: 단일 세포 분석을 통한 생물의학 연구의 발전 

단일 핵 멀티옴 분석을 위한 고품질 뇌 및 골수 핵 준비

Single-cell analysis has become the approach of choice for unraveling the complexity of biological processes that require assessing the variability of ...