Name: lc-ms analysis of human platelets as a platform for studying mitochondrial metabolism
Uploaded: 2016-04-04T15:00:00
Description: Watch this Scientific Journal Video about LC-MS Analysis of Human Platelets as a Platform for Studying Mitochondrial Metabolism at JoVE.com

Biz NIH hibe P30ES013508 ve T32ES019851 desteğini kabul.

Etik Beyanı: İnsan örneklerin tedavisi ile ilgili tüm protokoller Üniversitesi&#39;nin Pennsylvania insan araştırma etik komitesinin yönergeleri izleyin. Tamponlar 1. Hazırlık ve 100x Stok Çözümleri <ol><li> Baz Tyrode tampon 1 L hazırlayın. 2 ∙ 2 H 2 O, 0.224 gr KCl ve 0.095 gr MgCl 2. GKD 2 O. ile 1 L toplam ses seviyesini ayarlayın 8,123 gr NaCl, 1,428 gr NaHCO 3, 0.466 gr CaCl birleştirin Filtre tabanı Tyrode ta...

<ol>
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Burada tedirgin mitokondriyal metabolizmayı incelemek için bir platform olarak izole trombosit yarar göstermiştir. Özellikle, rotenone kompleks I inhibisyonu cevaben metabolik adaptasyon özelliği var. Bu çalışmada, insan trombositleri hücre hatlarında rotenone karmaşık bir önlenmesindeki rolünü daha önce bildirilen bulgular genişletmiştir. Daha da önemlisi, bu rotenon da inhibe trombosit süksinil-CoA oluşumu, trombosit βHB-CoA bir artışını ve asetil-CoA&#39;nın t...

Fonksiyonel mitokondriyal metabolizma nörodejenerasyonu, kanser ve kardiyovasküler hastalıklar 30 dahil olmak üzere hastalıkların geniş bir implike edilmiştir. Bu nedenle, büyük çaba hastalık patogenezinde katkıda metabolik kusurları karakterize konulmuş. Sıvı kromatografi-tandem kütle spektrometrisi (LC-MS / MS) kompleks biyolojik matrisler analitlerin miktar altın standart olarak kabul edilir ve genellikle metabolik çalışmalar 8 için kullanılmaktadır. Genellikle insan hastalığı ile ilgili erişilebilir ve iyi tanımlanmış bir model elde biyomedikal çalışmalarda durumda, Ancak, bir meydan okumadır. Birçok çalışma hücre metabolizması 7,9 tarihinde ksenobiyotikler veya genetik anormalliklerin etkisini sondalama için hücresel modeller dönüştürdü çalıştırırız. Kafa karıştırıcı tanıtabilirsiniz kanser hücrelerinde meydana metabolik yeniden programlama 21 faktörleri ve bu nedenle ideal değildir. Bu sorunlar, circumve olabilirMetabolik analizler için yeterli biyokütle elde zor olabilir, ancak birincil hücre modelleri ile nted. Dahası, kültürde kullanılan antibiyotiklere yüksek miktarda etkisi potansiyel karıştırıcı mitokondriyal çalışmalar 16 olarak vurgulanmıştır. İnsan trombosit metabolik çalışmalar 5,22,27,32 için yeterli mitokondriyal içeriğe sahip bir birincil hücre modeli kullanmak için fırsat tanıyacaktır. Kan bireysel donörden ya da kan bankalarından büyük hacimlerde çizer ve bu nedenle dış etkenler kolayca kontrol edilebileceği bir model üzerinden ilk, trombositler kolayca elde edilebilir. İkincisi, nedeniyle küçük boyutu, trombositler bile kolayca minimal donanımlı laboratuvarlarda 5 minimal hazırlık çalışmaları ile diğer kan bileşenleri izole edilebilir. Unutmayın ki, trombositler çekirdekleri içermez ve bu nedenle bağımsız transkripsiyonel düzenleme metabolizması değişiklikleri incelemek için kullanılabilir. Burada olduğunu göstermektedirasil-koenzim A (CoA) tiyoesterleri rölatif ölçümü ek olarak, izole edilmiş trombosit sistemi karbon metabolizması incelemek için kullanılabilir. Özellikle, önemli metaboliti asetil- içine [13 C] -Label birleşmesini prob kararlı izotop (radyoaktif olmayan) etiketli [13 C 6] -glükoz ve [13 ° C 16] -palmitat içerebilir ile metabolik etiketleme kullandığını rapor KoA glikoliz veya yağ asidi oksidasyonu yoluyla. Bu durum biyokimyasal yollar 13,24 asil-KoA türlerinin yaygın tutulumu ve bu rotenone 3,33 karmaşık I inhibisyonu gibi diğer değişkenler, test için bu sistemin tractability bir, güçlü genellenebilir ve çok yönlü bir platform sağlar. Aşağıdaki Protokolde verilen bilgilere ek olarak, izotop etiketleme ve LC-MS-tabanlı analizler için kullanılan yöntemlerin geniş bir açıklama Basu ve Blair 4 bulunabilir.

<table border="0" cellpadding="0" cellspacing="0" width="406">
	<tbody>
		<tr height="21">
			<td height="21" style="height:21px;width:161px;">Reagent</td>
			<td style="width:92px;"></td>
			<td style="width:68px;"></td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Sodium Chloride (NaCl)</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">746398</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Sodium Bicarbonate (NaHCO3)</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">S5761</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Calcium Chloride Dihydrate (CaCl2 * H2O)</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">223506</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Potassium Chloride (KCl)</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">P9541</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Magnesium Chloride (MgCl2)</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">208337</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Glucose</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">G8270</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">13C6-Glucose</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td>389374</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Palmitic acid</td>
			<td style="width:92px;">Cayman</td>
			<td style="width:68px;">10006627</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">13C16-Palmitic Acid</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">605573</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Rotenone</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">R8875</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Trichloro Acetic Acid</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">T6399</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">5-Sulfosalicylic Acid</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">390275</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Acetonitirle</td>
			<td style="width:92px;">Fischer Scientific</td>
			<td style="width:68px;">A996-4</td>
			<td style="width:85px;">(optima)</td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Water (H2O)</td>
			<td style="width:92px;">Fischer Scientific</td>
			<td style="width:68px;">W7-4</td>
			<td style="width:85px;">(optima)</td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Formic acid</td>
			<td style="width:92px;">Fischer Scientific</td>
			<td style="width:68px;">85171</td>
			<td style="width:85px;">(optima)</td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Dimethyl Sulfoxide</td>
			<td style="width:92px;">Sigma-Aldrich</td>
			<td style="width:68px;">472301</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Ethanol</td>
			<td style="width:92px;">Fischer Scientific</td>
			<td style="width:68px;">04-355-222</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Methanol</td>
			<td style="width:92px;">Fischer Scientific</td>
			<td style="width:68px;">A454-4</td>
			<td style="width:85px;">(optima)</td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Ammonium Acetate</td>
			<td style="width:92px;">Fischer Scientific</td>
			<td style="width:68px;">A639-500</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">2 mL Eppendorf Tubes</td>
			<td style="width:92px;">BioExpress</td>
			<td style="width:68px;">C-3229-1</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">LC vials (plastic)</td>
			<td style="width:92px;">Waters</td>
			<td style="width:68px;">186002640</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">10 mL Glass Centrifuge Tubes</td>
			<td style="width:92px;">Kimble Chase</td>
			<td style="width:68px;">73785-10</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Oasis Solid Phase Extraxtion (SPE) Columns</td>
			<td style="width:92px;">Waters</td>
			<td style="width:68px;">WAT094225</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="29">
			<td height="29" style="height:29px;width:161px;">Pastuer Pipets</td>
			<td style="width:92px;">Fischer Scientific</td>
			<td style="width:68px;">13-678-200</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="31">
			<td height="31" style="height:31px;width:161px;">Name</td>
			<td style="width:92px;">Company</td>
			<td style="width:68px;">Catalog Number</td>
			<td style="width:85px;">Comments</td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:161px;">Equipment</td>
			<td style="width:92px;"></td>
			<td style="width:68px;"></td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="30">
			<td height="30" style="height:30px;width:161px;">CO2 Water-Jacketed Incubator</td>
			<td style="width:92px;">Nuaire</td>
			<td style="width:68px;">AutoFlow NU-8500</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="45">
			<td height="45" style="height:45px;width:161px;">Triple Quadropole Mass Spectrometer</td>
			<td style="width:92px;">Thermo Scientific</td>
			<td style="width:68px;">Finnigan TSQ Quantum</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="45">
			<td height="45" style="height:45px;width:161px;">HPLC</td>
			<td style="width:92px;">Thermo Scientific</td>
			<td style="width:68px;">Dionex Ultimate 3000</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:161px;">Source</td>
			<td style="width:92px;">Thermo Scientific</td>
			<td style="width:68px;">HESI II</td>
			<td style="width:85px;"></td>
		</tr>
		<tr height="46">
			<td height="46" style="height:46px;width:161px;">HPLC Column</td>
			<td style="width:92px;">Phenomenex</td>
			<td style="width:68px;">Luna C18</td>
			<td style="width:85px;">3 &#956;m particle size, 200 mm x 2 mm</td>
		</tr>
	</tbody>
</table>

lc-ms analysis of human platelets as a platform for studying mitochondrial metabolism

Perturbed mitochondrial metabolism has received renewed interest as playing a causative role in a range of diseases. Probing alterations to metabolic pathways requires a model in which external factors can be well controlled, allowing for reproducible and meaningful results. Many studies employ transformed cellular models for these purposes; however, metabolic reprogramming that occurs in many cancer cell lines may introduce confounding variables. For this reason primary cells are desirable, though attaining adequate biomass for metabolic studies can be challenging. Here we show that human platelets can be utilized as a platform to carry out metabolic studies in combination with liquid chromatography-tandem mass spectrometry analysis. This approach is amenable to relative quantification and isotopic labeling to probe the activity of specific metabolic pathways. Availability of platelets from individual donors or from blood banks makes this model system applicable to clinical studies and feasible to scale up. Here we utilize isolated platelets to confirm previously identified compensatory metabolic shifts in response to the complex I inhibitor rotenone. More specifically, a decrease in glycolysis is accompanied by an increase in fatty acid oxidation to maintain acetyl-CoA levels. Our results show that platelets can be used as an easily accessible and medically relevant model to probe the effects of xenobiotics on cellular metabolism.

Biz maruz kalma rotenone elde edilen daha önce açıklanan telafi metabolik adaptasyon genellenebilirliğini yeniden var bu metodolojinin yararını gösteren. Bu bulgu, daha önce hücre kültürü modelleri tespit edilmiştir ve bu soruşturmanın bu metabolik vardiya da nukleussuz ve hücre kültürü aynı deneysel eserler eğilimli değildir trombositler oluşursa test etmek amaçlanmıştır. onların metabolik aktiviteyi muhafaza rağmen bu eser, insan infüzyon için çok eski s...

Watch this Scientific Journal Video about LC-MS Analysis of Human Platelets as a Platform for Studying Mitochondrial Metabolism at JoVE.com

LC-MS Analysis of Human Platelets as a Platform for Studying Mitochondrial Metabolism

Burada izole edilmiş insan trombosit Ben rotenone inhibitör kompleksi cevaben metabolik uyarlamalar incelemek için ex vivo olarak erişilebilir bir şekilde modeli kullanılabilir göstermektedir. Bu yaklaşım, sıvı kromatografisi-kütle spektrometrisi ile izotopik izleme ve nispi miktarını kullanır ve çalışma düzeni, çeşitli uygulanabilir.

Mitokondriyal Metabolizma incelenmesi için Platform olarak İnsan Trombositler LC-MS Analizi

Perturbed mitochondrial metabolism has received renewed interest as playing a causative role in a range of diseases. Probing alterations to metabolic ...

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SCIENTISTS IN ACTION

Technique for Studying Arthropod and Microbial Communities within Tree Tissues

Ağaç Dokuların içinde eklembacaklı ve Mikrobiyal Toplulukları incelenmesi için Tekniği

Phloem tissues of pine are habitats for many thousands of organisms.  Arthropods and microbes use phloem and cambium tissues to seek mates, lay eggs, rear ...

Transient Gene Expression in Tobacco using Gibson Assembly and the Gene Gun

Gibson Meclisi ve Gen Tabancası kullanarak Tütün geçici Gen İfadesi

In order to target a single protein to multiple subcellular organelles, plants typically duplicate the relevant genes, and express each gene separately ...

Use of Chironomidae (Diptera) Surface-Floating Pupal Exuviae as a Rapid Bioassessment Protocol for Water Bodies

Use of Chironomidae Diptera Surface-Floating Pupal Exuviae as a Rapid Bioassessment Protocol for Water Bodies

Chironomidae (Diptera) kullanılması Yüzey Yüzer Su Organları bir Rapid Bioassessment Protokolü Pupa Exuviae

Rapid bioassessment protocols using benthic macroinvertebrate assemblages have been successfully used to assess human impacts on water quality. ...

Modification and Application of a Leaf Blower-vac for Field Sampling of Arthropods

Modifikasyon ve Arthropodların Saha Örnekleme için bir Yaprak Blower-vac Uygulama

Rice fields host a large diversity of arthropods, but investigating their population dynamics and interactions is challenging. Here we describe the ...

Thermal Scanning Conductometry (TSC) as a General Method for Studying and Controlling the Phase Behavior of Conductive Physical Gels

Thermal Scanning Conductometry TSC as a General Method for Studying and Controlling the Phase Behavior of Conductive Physical Gels

Eğitim ve iletken fiziksel aşama davranışını denetlemek için bir genel yöntem jelleri gibi Conductometry (TSK) tarama termal

The thermal scanning conductometry protocol is a new approach in studying ionic gels based on low molecular weight gelators. The method is designed to ...

Quantifying Plant Soluble Protein and Digestible Carbohydrate Content, Using Corn (Zea mays) As an Exemplar

Quantifying Plant Soluble Protein and Digestible Carbohydrate Content, Using Corn Zea mays As an Exemplar

Bitki çözünür Protein ve sindirilebilir karbonhidrat içeriği, Mısır (Zea mays) kullanarak bir suret olarak miktarının

Elemental data are commonly used to infer plant quality as a resource to herbivores. However, the ubiquity of carbon in biomolecules, the presence of ...

Studying Neurobehavioral Effects of Environmental Pollutants on Zebrafish Larvae

Çevresel Kirleticilerin Zebrabalığı Larvaları Üzerindeki Nörodavranışsal Etkilerinin İncelenmi

Recent years more and more environmental pollutants have been proved neurotoxic, especially at the early development stages of organisms. Zebrafish larvae ...

The Effect of Construction and Demolition Waste Plastic Fractions on Wood-Polymer Composite Properties

İnşaat ve Yıkım Atık Plastik Fraksiyonlarının Ahşap-Polimer Kompozit Özellikleri Üzerine Etkisi

Construction and demolition waste (CDW), including valuable materials such as plastics, have a remarkable influence on the waste sector. In order for ...

A Gnotobiotic System for Studying Microbiome Assembly in the Phyllosphere and in Vegetable Fermentation

Fillosferde ve Bitkisel Fermantasyonda Mikrobiyom Montajı Nın İncelenmesi için Gnotobiyotik Sistem

The phyllosphere, the above ground portion of the plant that can be colonized by microbes, is a useful model system to identify processes of microbial ...

Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis

Microplot Design and Plant and Soil Sample Preparation for 15Nitrogen Analysis

15Azot Analizi için Mikroplot Tasarımı ve Bitki ve Toprak Numune Hazırlama

Many&#160;nitrogen fertilizer studies evaluate the overall effect of a treatment on end-of-season measurements such as grain yield or cumulative N losses. ...