Name: detection of microrna expression in peritoneal membrane of rats using quantitative real-time pcr
Uploaded: 2017-06-27T14:00:00
Description: Watch this Scientific Journal Video about Detection of microRNA Expression in Peritoneal Membrane of Rats Using Quantitative Real-time PCR at JoVE.com

Vi vill tacka Miyako Shigeta för sitt utmärkta tekniska stöd. Detta arbete stöddes delvis av JSPS KAKENHI (bidragsnummer 25461252).

Alla djurförsöksprotokoll godkändes av djuretikutskottet i Jichi Medical University och utfördes i enlighet med riktlinjerna för användning och vård av experimentella djur från Jichi Medical University Guide for Laboratory Animals. 1. Peritoneum Provsamling <ol><li> Samla in följande föremål: 50 ml centrifugrör med bomullsdragen i isofluran, korkfolie, petriskål med fosfatbuffrad saltlösning (PBS), kirurgiska sax och tång. </li><li> Eutanera en råtta med en överdos av isof...

<ol>
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M., Shaw, G., Larner, S. F. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Concurrent+mRNA+and+protein+extraction+from+the+same+experimental+sample+using+a+commercially+available+column-based+RNA+preparation+kit.">Concurrent mRNA and protein extraction from the same experimental sample using a commercially available column-based RNA preparation kit.</a> Biotechniques. 40 (1), 54-58 (2006).</li><li>Mestdagh, 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=Evaluation+of+quantitative+miRNA+expression+platforms+in+the+microRNA+quality+control+(miRQC)+study.">Evaluation of quantitative miRNA expression platforms in the microRNA quality control (miRQC) study.</a> Nat Methods. 11 (8), 809-815 (2014).</li><li>Bustin, S. 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=The+MIQE+guidelines:+minimum+information+for+publication+of+quantitative+real-time+PCR+experiments.">The MIQE guidelines: minimum information for publication of quantitative real-time PCR experiments.</a> Clin Chem. 55 (4), 611-622 (2009).</li><li>Schmittgen, T. D., Livak, 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=Analyzing+real-time+PCR+data+by+the+comparative+C(T)+method.">Analyzing real-time PCR data by the comparative C(T) method.</a> Nat Protoc. 3 (6), 1101-1108 (2008).</li><li>Krediet, R. T., Lindholm, B., Rippe, B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Pathophysiology+of+peritoneal+membrane+failure.">Pathophysiology of peritoneal membrane failure.</a> Perit Dial Int. 20, S22-S42 (2000).</li><li>Devuyst, O., Margetts, P. J., Topley, N. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+pathophysiology+of+the+peritoneal+membrane.">The pathophysiology of the peritoneal membrane.</a> J Am Soc Nephrol. 21 (7), 1077-1085 (2010).</li><li>Hirahara, I., Ishibashi, Y., Kaname, S., Kusano, E., Fujita, T. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Methylglyoxal+induces+peritoneal+thickening+by+mesenchymal-like+mesothelial+cells+in+rats.">Methylglyoxal induces peritoneal thickening by mesenchymal-like mesothelial cells in rats.</a> Nephrol Dial Transplant. 24 (2), 437-447 (2009).</li><li>Dallas, P. B., 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=Gene+expression+levels+assessed+by+oligonucleotide+microarray+analysis+and+quantitative+real-time+RT-PCR+--+how+well+do+they+correlate?.">Gene expression levels assessed by oligonucleotide microarray analysis and quantitative real-time RT-PCR -- how well do they correlate?.</a> BMC Genomics. 6, 59 (2005).</li><li>Rockett, J. C., Hellmann, G. M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Confirming+microarray+data--is+it+really+necessary?.">Confirming microarray data--is it really necessary?.</a> Genomics. 83 (4), 541-549 (2004).</li></ol>

Användning av protokollet som presenteras i detta manuskript renades miRNA i råttor-peritonealt membran med framgång och användes med användning av qRT-PCR. Tillförlitligheten av qRT-PCR-dataanalys beror på kvaliteten på renade miRNA. Därför kan renheten hos miRNA kontrolleras före qRT-PCR genom förhållandet absorbans vid 260 nm till det vid 280 nm, vilket kan mätas med användning av en spektrofotometer. När signifikant amplifiering av miRNA inte kan erhållas med användning av qRT-PCR, kan koncentratio...

MicroRNAs (miRNAs) är korta, icke-kodande RNA som post-transkriptionellt reglerar uttrycket RNA (mRNA) uttryck 1 . Förändringar i uttrycket av miRNA reglerar uttrycket av många mRNA som spelar pivotala roller i olika patologiska tillstånd, inklusive cancer, inflammation, metaboliska störningar och fibros 2 , 3 , 4 , 5 , 6 , 7 , 8 . Därför har miRNAs potential som nya biomarkörer och terapeutiska mål 2 , 3 , 4 , 5 , 6 , 7 , 8 . MiRNA-expressionsprofilen har bestämts i olika råttorOrgan och vävnader, inklusive lever, hjärta, lung och njure 9 . Standardmetoder för rening och detektion av miRNA i råttor-peritonealmembran har emellertid inte varit väl etablerade. Det övergripande målet med detta protokoll är att framgångsrikt rena och detektera miRNA i råtta-peritonealt membran. Först homogeniserades peritonealmembranprovet med användning av en glashomogenisator följt av exponering för ett biopolymer-fragmenteringssystem i en mikrocentrifugspinnkolonn 10 . Därefter renades totalt RNA inklusive miRNA från peritonealt membranprov med användning av en silikamembranbaserad spinnkolonn 10 . Sedan syntetiserades cDNA från det renade totala RNA med användning av omvänt transkriptas, poly (A) -polymeras och oligo-dT-primer 11 . Slutligen bestämdes uttrycket av miRNA genom qRT-PCR med användning av ett interkalerande färgämne 11 . Skälen till detta protokoll är bAsed vid tidigare studier som visade signifikant rening och detektion av miRNA i vävnader genom en enkel process 8 , 10 , 11 . Det har rapporterats att användningen av ett biopolymer-fragmenteringssystem i en mikrocentrifugspinnkolonn och silikamembranbaserad spinnkolonn kan rena högkvalitativt totalt RNA från vävnaderna 10 . Metoden att syntetisera cDNA från renat totalt RNA med användning av omvänt transkriptas, poly (A) -polymeras och oligo-dT-primer och metoden för att detektera miRNA-uttryck med qRT-PCR med användning av interkalerande färgämne i detta protokoll har rapporterats visa hög noggrannhet och Känslighet 11 . Dessutom är det en enkel process, vilket sparar tid och förhindrar tekniska fel. Därför är detta protokoll användbart i studier som kräver mycket noggrann och känslig detektering av miRNA i råtta peritonealt membran i ett brett spektrum av patologiska tillstånd.

<table border="1" fo:keep-together.within-page="1" fo:keep-with-next.within-page="always">
	<tbody>
		<tr>
			<td>QIA shredder</td>
			<td>Qiagen</td>
			<td>79654</td>
			<td>biopolymer-shredding system in a micro centrifuge spin-column</td>
		</tr>
		<tr>
			<td>miRNeasy Mini kit</td>
			<td>Qiagen</td>
			<td>217004</td>
			<td>silica-membrane based spin column</td>
		</tr>
		<tr>
			<td>QIAzol Lysis Reagent</td>
			<td>Qiagen</td>
			<td>79306</td>
			<td>phenol/guanidine-based lysis reagent</td>
		</tr>
		<tr>
			<td>Buffer RLT</td>
			<td>Qiagen</td>
			<td>79216</td>
			<td>wash buffer 1</td>
		</tr>
		<tr>
			<td>Buffer RWT</td>
			<td>Qiagen</td>
			<td>1067933</td>
			<td>wash buffer 2</td>
		</tr>
		<tr>
			<td>miScript II RT kit&#160;</td>
			<td>Qiagen</td>
			<td>218161</td>
			<td>includes 10&#215; Nucleics Mix containing deoxynucleotides, ribonucleotide triphosphates, and oligo-dT primers; miScript Reverse Transcriptase Mix containing poly(A) polymerase and reverse transcriptase and; miScript HiSpec buffer</td>
		</tr>
		<tr>
			<td>miScript SYBR Green PCR kit</td>
			<td>Qiagen</td>
			<td>218073</td>
			<td>includes QuantiTect SYBR Green PCR Master Mix and miScript Universal Primer</td>
		</tr>
		<tr>
			<td>RNU6-2 primer&#160;&#160;</td>
			<td>Qiagen</td>
			<td>MS00033740</td>
			<td>not disclosed</td>
		</tr>
		<tr>
			<td>miRNA-142-3p primer</td>
			<td>Qiagen</td>
			<td>MS00031451</td>
			<td>5&#39;-UGUAGUGUUUCC 
			UACUUUAUGGA-3&#39;&#160;&#160;</td>
		</tr>
		<tr>
			<td>miRNA-21-5p primer</td>
			<td>Qiagen</td>
			<td>MS00009079</td>
			<td>5&#39;-UAGCUUAUCAG 
			ACUGAUGUUGA-3&#39;</td>
		</tr>
		<tr>
			<td>miRNA-221-3p primer</td>
			<td>Qiagen</td>
			<td>MS00003857</td>
			<td>5&#39;-AGCUACAUUGU 
			CUGCUGGGUUUC-3&#39;</td>
		</tr>
		<tr>
			<td>miRNA-223-3p primer</td>
			<td>Qiagen</td>
			<td>MS00033320</td>
			<td>5&#39;-UGUCAGUUUG 
			UCAAAUACCCC-3&#39;</td>
		</tr>
		<tr>
			<td>miRNA-34a-5p primer</td>
			<td>Qiagen</td>
			<td>MS00003318</td>
			<td>5&#39;-UGGCAGUGUCU 
			UAGCUGGUUGU-3&#39;</td>
		</tr>
		<tr>
			<td>miRNA-327 primer</td>
			<td>Qiagen</td>
			<td>MS00000805</td>
			<td>5&#39;-CCUUGAGGGG 
			CAUGAGGGU-3&#39;</td>
		</tr>
		<tr>
			<td>MicroAmp Optical 96 well reaction plate for qRT-PCR</td>
			<td>Thermo Fisher Scientific</td>
			<td>4316813</td>
			<td>96-well reaction plate</td>
		</tr>
		<tr>
			<td>MicroAmp Optical Adhesive Film&#160;</td>
			<td>Thermo Fisher Scientific</td>
			<td>4311971</td>
			<td>adhesive film for 96-well reaction plate</td>
		</tr>
		<tr>
			<td>QuantStudio 12K Flex Flex Real-Time PCR system</td>
			<td>Thermo Fisher Scientific</td>
			<td>4472380</td>
			<td>real-time PCR instrument</td>
		</tr>
		<tr>
			<td>QuantStudio 12K Flex Software version 1.2.1.</td>
			<td>Thermo Fisher Scientific</td>
			<td>4472380</td>
			<td>real-time PCR instrument software</td>
		</tr>
		<tr>
			<td>methylglyoxal</td>
			<td>Sigma-Aldrich</td>
			<td>M0252</td>
			<td></td>
		</tr>
		<tr>
			<td>Midperic</td>
			<td>Terumo</td>
			<td>not assign&#160;</td>
			<td>peritoneal dialysis fluid</td>
		</tr>
		<tr>
			<td>Sprague&#8211;Dawley rats</td>
			<td>SLC</td>
			<td>not assign&#160;</td>
			<td></td>
		</tr>
	</tbody>
</table>

detection of microrna expression in peritoneal membrane of rats using quantitative real-time pcr

MicroRNAs (miRNAs) är små icke-kodande RNA som reglerar Messenger RNA-uttryck efter transskriptionellt. MiRNA-expressionsprofilen har undersökts i olika organ och vävnader i råtta. Standardmetoder för rening av miRNA och detektering av deras uttryck i råttor peritonealt membran har emellertid inte varit väl etablerade. Vi har utvecklat en effektiv och tillförlitlig metod för att rena och kvantifiera miRNAs med hjälp av kvantitativ omvänd transkriptionspolymeras kedjereaktion (qRT-PCR) i råttor peritonealt membran i realtid. Detta protokoll består av fyra steg: 1) rening av peritonealt membranprov; 2) rening av totalt RNA inklusive miRNA från peritonealt membranprov; 3) omvänt transkription av miRNA för att producera cDNA; Och 4) qRT-PCR för att detektera miRNA-uttryck. Med hjälp av detta protokoll bestämde vi framgångsrikt att uttrycket av sex miRNA (miRNA-142-3p, miRNA-21-5p, miRNA-221-3p, miRNA-223-3p, miRNA-327 och miRNA-34a-5p) ökadeSignifikant i peritonealmembranet hos en peritoneal fibrosmodell i råtta jämfört med de i kontrollgrupper. Detta protokoll kan användas för att studera profilen av miRNA-uttryck i peritonealt membran hos råttor under många patologiska förhållanden.

Resultaten som presenteras här bygger på vår tidigare rapporterade studie 8 . Vi undersökte miRNA-expressionsprofilen i peritoneal fibros. Peritoneal fibros är en stor komplikation vid peritonealdialys. Det kännetecknas av förlust av mesotelcells-monoskiktet och överskott av ackumulering av extracellulära matriskomponenter och är associerad med peritonealt membransvikt 14 , 15 . En ryggmodell fö...

Watch this Scientific Journal Video about Detection of microRNA Expression in Peritoneal Membrane of Rats Using Quantitative Real-time PCR at JoVE.com

Detection of microRNA Expression in Peritoneal Membrane of Rats Using Quantitative Real-time PCR

Här presenterar vi ett protokoll för detektering av mikroRNA-uttryck i rått-peritonealt membran med användning av kvantitativ omvänd transkriptions-polymeras kedjereaktion i realtid. Denna metod är lämplig för studier av mikroRNA-expressionsprofilen i råttor-peritonealt membran i flera patologiska tillstånd.

Detektion av mikroRNA-uttryck i peritonealt membran hos råttor med användning av kvantitativ realtids-PCR

MicroRNAs (miRNAs) are small noncoding RNAs that regulate messenger RNA expression post-transcriptionally. The miRNA expression profile has been ...

The overall goal of this procedure is to successfully purify and detect miRNAs in the rat peritoneal membrane. To begin this procedure, after inhalational anesthesia with 4%isoflurane. Spray the abdominal skin of the rat with 70%ethanol and mount it on the cork sheet, on its'back.Next make a longitudinal incision in the animal's abdominal skin, muscle, and peritoneal membrane using scissors and forceps. Pick up the peritoneal membrane using the forceps and make horizontal incisions on its'upper portion along the lowest rib bone under the diaphragm. And on its'lower side on the lateral region using the surgical scissors.Next, make lateral longitudinal incisions to remove the peritoneal membrane from the body, using the surgical scissors. Then wash it with PPS in a petri dish. Cut out and trim 20 milligrams of peritoneal membrane sample.In this procedure, place a 20 milligram peritoneal membrane sample into a glass homogenizer. And add 700 microliters phenol guanidine based lysis reagent. After that, homogenize the peritoneal membrane sample on ice, by slowing pressing a pestle onto the sample with twisting.Repeat this process several dozen times, until the peritoneal membrane sample has completely dissolved into the phenol guanidine based lysis reagent. for further homogenization, transfer the homogenized lysate to a bio-polymer shredding system in the micro centrifuge spin column in a two milliliter collection tube. Then centrifuge it at 14, 000 times G for three minutes at four degrees Celsius.Next, transfer the homogenized lysate to a new micro centrifuge tube. Add 140 microliters of chloroform to the homogenized lysate and cap the tube securely. Subsequently, mix the tube by inversion for 15 seconds.Afterward, incubate the sample for two to three minutes at room temperature. Following that, centrifuge it at 12, 000 times G for 15 minutes at four degrees Celsius. Transfer 300 microliters of the supernatant to a new micro centrifuge tube, without disturbing the precipitant.And add 450 micro liters of 100%ethanol. Then mix the sample by vortexing for five seconds. Next pipette up to 700 micro liters of the sample into a silicone membrane based spin column, placed in a two milliliter collection tube, and close the cap.Then centrifuge it at 15, 000 times G for 15 seconds. After centrifugation, discard the flow through in the collection tube. Then add 700 microliters of wash buffer 1, to the silicon membrane based spin column to stringently wash the sample and close the cap.Centrifuge it at 15, 000 times G for 15 seconds. After centrifugation, discard the flow through in the collection tube. Add 500 microliters of wash buffer 2, to the silica membrane based spin column, to remove any trace of salt, and close the cap.Then centrifuge it at 15, 000 times G for 15 seconds. After centrifugation, discard the flow through and the collection tube and repeat this procedure again. Next, centrifuge the silica membrane based spin column again at 15, 000 times G for one minute.After centrifugation, discard the collection tube and any flow through. Place the silica membrane based spin column in a new, one point five milliliter collection tube. Then transfer 25 microliters of RNase free water onto the column and close the cap.Leave the sample at room temperature for five minutes. Centrifuge it at 15, 000 times G for one minute. Following that, transfer the 25 microliter alouette containing the total RNA to a new micro centrifuge tube and store it at minus 80 degrees Celsius before use.In this procedure, prepare a master mix solution that contains two microliters of 10x nucleic acid mix, two microliters of reverse transcriptase mix, and four microliters of 5x Hispec buffer, for a total of 8 microliters per tube. Then dispense 8 microliters of the master mix solution into each tube. Measure the quantity of the total RNAs using a Spectrophotometer.Afterward, add one microgram of the isolated total RNAs, purified from the peritoneal membrane sample, to each tube. Following that, add RNase free water to each tube to bring it to a total of 20 microliters. Then mix it thoroughly by pipetting and centrifuge it for 15 seconds.Following that, incubate the sample for 60 minutes at 37 degrees Celsius. Then incubate it for five minutes at 95 degrees Celsius. Transfer the newly generated cDNA to a new micro centrifuge tube and dilute it 10 times with RNase free water.In this procedure, prepare a master mix containing 12 point five microliters of 2x PCR master mix, two point five microliters of five micromolar of each miRNA primer dissolved in nuclease free water, and one point two five microliters of 10x universal primer, for each well. Dispense 22 point five microliters of this master mix into each well of a 96 well plate. Then add two point five microliters of template cDNA to each well.Seal the 96 well reaction plate with a piece of film. Then centrifuge it at 1, 000 times G for 30 seconds. To run the PCR cycling program, set the plate in the real time PCR instrument.In the real time PCR software, define the experimental properties. Next, assign names to the samples and target miRNAs in each well. Then in the real time PCR software input a reaction volume of 20 micro liters and the following PCR cycling conditions in accordance with the instructions.Pre incubation at 95 degrees Celsius for 15 minutes. And then 40 cycles of denaturation at 94 degrees Celsius for 15 seconds, and kneeling at 55 degrees Celsius for 30 seconds, And extension at 70 degrees Celsius for 30 seconds. Based on miRNA, micro array screening, the levels of six miRNAs have been found to be significantly increased in the peritoneal membrane of peritoneal fibrosis rats, compared with those in mock rats and control rats, using QRTCPR, following the protocol presented in this manuscript.

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micro-RNAs (miRNAs) are single-stranded RNA transcripts that bind to messenger RNAs (mRNAs) and inhibit their translation or promote their degradation. To ...

Detection of Human Immunodeficiency Virus Type 1 (HIV-1) Antisense Protein (ASP) RNA Transcripts in Patients by Strand-Specific RT-PCR

Detection of Human Immunodeficiency Virus Type 1 HIV-1 Antisense Protein ASP RNA Transcripts in Patients by Strand-Specific RT-PCR

Detektion av humant immunbrist virus typ 1 (HIV-1) RNA-avskrifter för antisense protein (ASP) hos patienter med programspecifika RT-PCR-

In retroviruses, antisense transcription has been described in both human immunodeficiency virus type 1 (HIV-1) and human T-lymphotropic virus 1 (HTLV-1). ...

High-Throughput Quantitative RT-PCR in Single and Bulk C. elegans Samples Using Nanofluidic Technology

High-Throughput Quantitative RT-PCR in Single and Bulk C. elegans Samples Using Nanofluidic Technology

Kvantitativ RT-PCR med hög genomströmning i en- och bulk C. elegansprover med nanofluidisk teknik

This paper presents a high-throughput reverse transcription quantitative PCR (RT-qPCR) assay for Caenorhabditis elegans that is fast, robust, and highly ...