Name: whole-cell patch-clamp recordings of isolated primary epithelial cells from the epididymis
Uploaded: 2017-08-03T12:30:00
Description: Watch this Scientific Journal Video about Whole-cell Patch-clamp Recordings of Isolated Primary Epithelial Cells from the Epididymis at JoVE.com

Vi takker Dr. Christopher Antos for nyttige kommentarer til teksten. Dette arbeidet ble støttet av oppstartsfinansiering fra ShanghaiTech University tildelt Winnie Shum og med finansiering fra National Natural Science Foundation of China (NNSFC nr. 31471370).

Alle dyreforsøk utføres i samsvar med retningslinjene fra Institutt for dyrepleie og bruk av ShanghaiTech University, som oppfyller de lokale og internasjonale kravene. 1. Eksperimentelle dyr <ol><li> Bruk voksne Sprague-Dawley-hanrotter (~ 300-450 g) mellom 8-12 uker gamle. På denne alderen hos rotter har sædene kommet i cauda-epididymidene. </li></ol> 2. Isolering av epitelceller fra rotte-Cauda-epididymider MERK: Følgende trinn utf...

<ol>
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Y. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Epithelial+membrane+potentials+of+the+epididymis+in+rats+[proceedings].">Epithelial membrane potentials of the epididymis in rats [proceedings].</a> J Physiol. 263 (2), 280 (1976).</li><li>Lybaert, 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=KATP+channel+subunits+are+expressed+in+the+epididymal+epithelium+in+several+mammalian+species.">KATP channel subunits are expressed in the epididymal epithelium in several mammalian species.</a> Biol Reprod. 79 (2), 253-261 (2008).</li></ol>

I denne protokollen ga den enzymatiske dispersjonen av rotte-cauda-epididymider konsekvent sunne epitelceller. Kvaliteten på epididymepitelceller for patch-clamp-eksperimentene er avhengig av noen få kritiske trinn i protokollen. For eksempel er sentrifugeringen av celleblandingen ved en lav sentrifugalkraft (30 xg) viktig for fjerning av spermatozoa og det epididymale luminale innholdet; De epididymale epitelceller blir usunn i nærvær av spermatozoa i cellekulturen. I tillegg er dyrking av den dissocierte celleblan...

Epididymene i den mannlige reproduktive delen er et organ foret med et lag av mosaikkepitelceller. Som i andre epitelvev, fungerer de forskjellige celletyper av det epididymale epitelet, inkludert hovedceller, klare celler, basale celler og celler fra immunologiske og lymfatiske systemer, på en samordnet måte for å fungere som barrieren ved tubulefronten og som Bærende celler for spermadyring og fysiologi 1 , 2 , 3 . Således spiller disse epitelceller en viktig rolle i reproduktiv helse. Epitelceller betraktes generelt som ikke-exciterbare celler som ikke er i stand til å generere all-of-none-actionpotensialer som svar på depolariserende stimuli, på grunn av mangel på spenningsgated Na + eller Ca 2+ kanaler 4 , 5 . Imidlertid uttrykker epitelceller uniQue sett av ionkanaler og transportører som regulerer sine spesialiserte fysiologiske roller, som sekresjon og næringsmiddeltransport 6 . Forskjellige epitelceller har derfor karakteristiske elektriske egenskaper. For eksempel uttrykker de primære cellene CFTR for væske- og kloridtransport og uttrykker TRPV6 for kalsiumreabsorpsjon, mens de klare celler uttrykker protonpumpen V-ATPase for luminal surgjøring 1 , 7 , 8 , 9 . Noen transportører og ionkanaler som regulerer de fysiologiske egenskapene til de epididymale epitelceller har blitt rapportert, men de funksjonelle egenskapene til epididymepitelceller er i stor grad ikke forstått 10 , 11 , 12 , 13 . WhOle-celle patch-clamp opptak er en veletablert teknikk for å undersøke de inneboende egenskapene til både ekstreme og ikke-excitable celler, og er spesielt nyttig for å studere funksjonene til primært dissocierte celler i heterogene celleprøver; Spenningsklemmen brukes til å måle de passive membranegenskapene og ionstrømmene av enkeltceller 14 , 15 . De passive membranegenskapene inkluderer inngangsbestandighet og kapasitans. Den tidligere parameter indikerer den indre membranledningen, mens sistnevnte innebærer overflatearealet til cellemembranen (et fosfolipid-dobbeltlag hvor ionekanaler og transportører er plassert, som tjener som en tynn isolator som separerer ekstracellulært og intracellulært medium). Membrankapasitansen er direkte proporsjonal med cellemembranets overflateareal. Sammen med membranmotstanden som reflekteres av inngangsbestandigheten, vil membrantidskonstanten, wSom indikerer hvor raskt cellemembranpotensialet reagerer på strømmen av ionkanalstrømmer, kan bestemmes. I denne forbindelse, ved å kombinere de nåværende responskarakteristikkene fra en serie spenningstrinn som påføres cellene, bestemmes den biofysiske kinetikk og egenskaper av cellene 15 , 16 , 17 , 18 . I foreliggende papir beskriver vi prosedyrene for isolering av epitelceller fra rotte cauda-epididymis og trinnene for måling av membranegenskapene til forskjellige celletyper i den dissocierte celleblandingen ved anvendelse av helcellepatchklemmen. Vi viser at de epididymale hovedcellene viser forskjellige membranelektrofysiologiske egenskaper og at konduktansene lett kan identifiseres fra andre celletyper.

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		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Instrument of AXON system</td>
			<td style="width:129px;"></td>
			<td style="width:139px;"></td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="64">
			<td height="64" style="height:64px;width:149px;">Computer controlled amplifier</td>
			<td style="width:129px;">Molecular Devices - Axon</td>
			<td style="width:139px;">Multiclamp 700B patch-clamp amplifier</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Digital Acquisition system</td>
			<td style="width:129px;">Molecular Devices - Axon</td>
			<td style="width:139px;">Digidata 1550 converter</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Microscope</td>
			<td style="width:129px;">Olympus</td>
			<td style="width:139px;">BX-61WI</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Micromanipulator</td>
			<td style="width:129px;">Sutter Instruments</td>
			<td style="width:139px;">MPC-325</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Recording chamber and in-line Heater</td>
			<td style="width:129px;">Warner Instruments</td>
			<td style="width:139px;">TC-324C</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Instrument of HEKA system</td>
			<td style="width:129px;"></td>
			<td style="width:139px;"></td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Patch Clamp amplifier</td>
			<td style="width:129px;">Harvard Bioscience - HEKA</td>
			<td style="width:139px;">EPC-10 USB double</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Microscope</td>
			<td style="width:129px;">Olympus</td>
			<td style="width:139px;">IX73</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Micromanipulator</td>
			<td style="width:129px;">Sutter Instruments</td>
			<td style="width:139px;">MPC-325</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Recording chamber and in-line Heater</td>
			<td style="width:129px;">Warner Instruments</td>
			<td style="width:139px;">TC-324C</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Other Instrument</td>
			<td style="width:129px;"></td>
			<td style="width:139px;"></td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Micropipette Puller</td>
			<td style="width:129px;">Sutter Instrument&#160;</td>
			<td style="width:139px;">P-1000</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="64">
			<td height="64" style="height:64px;width:149px;">Recording Chamber</td>
			<td style="width:129px;">Warner Instruments</td>
			<td style="width:139px;">RC-26G or homemade chamber</td>
			<td style="width:207px;"></td>
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		<tr height="64">
			<td height="64" style="height:64px;width:149px;">Borosilicate capillary glass with filament</td>
			<td style="width:129px;">Sutter Instrument / Harvard Apparatus</td>
			<td style="width:139px;">BF150-86-10</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Vibration isolation table</td>
			<td style="width:129px;">TMC&#160;</td>
			<td style="width:139px;">63544</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Digital Camare</td>
			<td style="width:129px;">HAMAMASTU</td>
			<td style="width:139px;">ORCA-Flash4.0 V2 C11440-22CU</td>
			<td style="width:207px;"></td>
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		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Reagents for isolation</td>
			<td style="width:129px;"></td>
			<td style="width:139px;"></td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">RPMI 1640 medium</td>
			<td style="width:129px;">Gibco</td>
			<td style="width:139px;">22400089</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">Penicillin/Streptomycin</td>
			<td style="width:129px;">Gibca</td>
			<td style="width:139px;">15140112</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="21">
			<td height="43" style="height:43px;width:149px;">IMDM</td>
			<td style="width:129px;">ATCC&#160;</td>
			<td style="width:139px;">30-2005&#160;</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="43" style="height:43px;width:149px;">IMDM</td>
			<td height="22" style="height:22px;width:129px;">Gibco</td>
			<td style="width:139px;">C12440500BT</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Collagenase I</td>
			<td style="width:129px;">Sigma</td>
			<td style="width:139px;">C0130</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Collagenase II</td>
			<td style="width:129px;">Sigma</td>
			<td style="width:139px;">C6885</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="43">
			<td height="43" style="height:43px;width:149px;">5-&#945;-dihydrotestosterone</td>
			<td style="width:129px;">Medchemexpress</td>
			<td style="width:139px;">HY-A0120</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Fetal bovine serum</td>
			<td style="width:129px;">capricorn</td>
			<td style="width:139px;">FBS-12A</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="106">
			<td height="106" style="height:106px;width:149px;">Micropipette internal solutions (K+-based solution) (pH 7.2, 280-295 mOsm)</td>
			<td style="width:129px;"></td>
			<td style="width:139px;"></td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">KCl, 35mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900068</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:149px;">MgCl2 &#183; 6H2O, 2mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">M2393</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">EGTA, 0.1mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">E4378</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">HEPES, 10mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900477</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">K-gluconate, 100mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">P-1847</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Mg-ATP, 3mM</td>
			<td style="width:129px;">Sigma/Various</td>
			<td style="width:139px;">A9187</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="106">
			<td height="106" style="height:106px;width:149px;">The standard external recording physiological salt solution (PSS) (pH 7.4, 300-310 mOsm)</td>
			<td style="width:129px;"></td>
			<td style="width:139px;"></td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">NaCl, 140mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900058</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">KCl, 4.7mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900068</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:149px;">CaCl2, 2.5mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900266</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:149px;">MgCl2 &#183; 6H2O, 1.2mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">M2393</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="26">
			<td height="26" style="height:26px;width:149px;">NaH2PO4, 1.2mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900060</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">HEPES, 10mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900477</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">Glucose, 10mM</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900392</td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">For pH adjustment</td>
			<td style="width:129px;"></td>
			<td style="width:139px;"></td>
			<td style="width:207px;"></td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">NaOH</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">V900797</td>
			<td style="width:207px;">Purity &#62;=97%</td>
		</tr>
		<tr height="22">
			<td height="22" style="height:22px;width:149px;">KOH</td>
			<td style="width:129px;">Sigma/various</td>
			<td style="width:139px;">60371</td>
			<td style="width:207px;">Purity &#62;=99.99%</td>
		</tr>
	</tbody>
</table>

whole-cell patch-clamp recordings of isolated primary epithelial cells from the epididymis

Den epididymis er et viktig organ for spermmåling og reproduktiv helse. Det epididymale epitelet består av introduserte celletyper som er tydelige, ikke bare i molekylære og morfologiske egenskaper, men også i fysiologiske egenskaper. Disse forskjellene gjenspeiler deres mangfoldige funksjoner, som sammen etablerer det nødvendige mikromiljøet for utvikling av post-testikulær sperma i det epididymale lumen. Forståelsen av de biofysiske egenskapene til de epididymale epitelceller er kritisk for å avdekke sine funksjoner i sperm og reproduktiv helse under både fysiologiske og patofysiologiske forhold. Selv om deres funksjonsegenskaper ennå ikke har blitt fullstendig uttalt, kan de epididymale epitelceller studeres ved hjelp av patch-clamp-teknikken, et verktøy for måling av de mobile hendelsene og membranegenskapene til enkeltceller. Her beskriver vi metodene for celleisolasjon og full-celle patch-clamp-opptak til megaSikker på de elektriske egenskapene til primære dissocierte epitelceller fra rotte cauda-epididymider.

Den beskrevne enzymatiske fordøyelsesprosedyren for isolering av epitelceller fra rotte-cauda-epididymider er en modifisert protokoll fra våre tidligere studier 9 , 12 . Denne metoden produserer en blanding av enkeltceller med over 90% levedyktighet og uten overflateblister eller hovne cellevolum. Den heterogene celleblanding i hovedsak består av hovedceller, klare celler og basalceller, som vi har beskrevet tidligere <sup cla...

Watch this Scientific Journal Video about Whole-cell Patch-clamp Recordings of Isolated Primary Epithelial Cells from the Epididymis at JoVE.com

Whole-cell Patch-clamp Recordings of Isolated Primary Epithelial Cells from the Epididymis

Vi presenterer en protokoll som kombinerer celleisolasjon og helcelle patch-clamp opptak for å måle de elektriske egenskapene til de primære dissocierte epitelceller fra rotte cauda-epididymider. Denne protokollen tillater undersøkelse av funksjonelle egenskaper til primære epididymepitelceller for å belyse epididymis fysiologiske rolle.

Hele-celle Patch-clamp Opptak av isolerte primære epitelceller fra epididymene

The epididymis is an essential organ for sperm maturation and reproductive health. The epididymal epithelium consists of intricately connected cell types ...

Research

JoVE Journal

Developmental Biology

Using Isolated Mitochondria from Minimal Quantities of Mouse Skeletal Muscle for High throughput Microplate Respiratory Measurements

Bruke Isolert Mitokondrier fra minimale mengder av Mouse Skeletal Muscle for høy gjennomstrømming Mikro respirasjonsmålinger

Skeletal muscle mitochondria play a specific role in many disease pathologies. As such, the measurement of oxygen consumption as an indicator of ...

Primary Endodermal Epithelial Cell Culture from the Yolk Sac Membrane of Japanese Quail Embryos

Primær endodermal epithelial Cell Culture fra plommesekken membran av japanske Quail embryoer

We established an endodermal epithelial cell culture model (EEC) for studying the function of certain enzymes and proteins in mediating nutrient ...

Cultivate Primary Nasal Epithelial Cells from Children and Reprogram into Induced Pluripotent Stem Cells

Dyrke Primær Nasal Epitelceller fra Barne- og omprogrammere inn Utførte Pluripotent stamceller

Nasal epithelial cells (NECs) are the part of the airways that respond to air pollutants and are the first cells infected with respiratory viruses. They ...

Development of an In Vitro Assay to Evaluate Contractile Function of Mesenchymal Cells that Underwent Epithelial-Mesenchymal Transition

Development of an In Vitro Assay to Evaluate Contractile Function of Mesenchymal Cells that Underwent Epithelial-Mesenchymal Transition

Utvikling av en<em&gt; In Vitro</em&gt; Assay å evaluere kontraktile funksjon av mesenchymalceller som gjennomgikk Epitelial-Mesenchymale Overgangs

Fibrosis is often involved in the pathogenesis of various chronic progressive diseases such as interstitial pulmonary disease. Pathological hallmark is ...

In Vitro Colony Assays for Characterizing Tri-potent Progenitor Cells Isolated from the Adult Murine Pancreas

In Vitro Colony Assays for Characterizing Tri-potent Progenitor Cells Isolated from the Adult Murine Pancreas

In Vitro Colony analyser for å karakterisere Tri-potente stamceller isolert fra den voksne Murine Pancreas

Stem and progenitor cells from the adult pancreas could be a potential source of therapeutic beta-like cells for treating patients with type 1 diabetes. ...

Generation of Induced-pluripotent Stem Cells Using Fibroblast-like Synoviocytes Isolated from Joints of Rheumatoid Arthritis Patients

Generering av indusert-pluripotente stamceller ved hjelp av fibroblast synoviocytter Isolert fra ledd av pasienter med revmatoid artritt

Mature somatic cells can be reversed into a pluripotent stem cell-like state using a defined set of reprogramming factors. Numerous studies have generated ...

Induction of Mesenchymal-Epithelial Transitions in Sarcoma Cells

Induksjon av Mesenchymale-Epitelial Transitions i sarkomceller

Phenotypic plasticity refers to a phenomenon in which cells transiently gain traits of another lineage. During carcinoma progression, phenotypic ...

Rapid, Directed Differentiation of Retinal Pigment Epithelial Cells from Human Embryonic or Induced Pluripotent Stem Cells

Rask, rettet differensiering av netthinnens Pigment epitelceller fra menneskelige embryonale eller indusert Pluripotent stamceller

We describe a robust method to direct the differentiation of pluripotent stem cells into retinal pigment epithelial cells (RPE). The purpose of providing ...

The Isolation and Culture of Primary Epicardial Cells Derived from Human Adult and Fetal Heart Specimens

Isolasjon og kultur av primære Epicardial celler avledet fra menneskelige voksne og fosterets hjerte prøver

The epicardium, an epithelial cell layer covering the myocardium, has an essential role during cardiac development, as well as in the repair response of ...

Computational Analysis of the Caenorhabditis elegans Germline to Study the Distribution of Nuclei, Proteins, and the Cytoskeleton

Computational Analysis of the Caenorhabditis elegans Germline to Study the Distribution of Nuclei, Proteins, and the Cytoskeleton

Beregningsorientert analyse av Caenorhabditis elegans Germline å studere distribusjon av kjerner, proteiner og Cytoskeleton

The Caenorhabditis elegans (C. elegans) germline is used to study several biologically important processes including stem cell development, apoptosis, and ...