Name: culturing caenorhabditis elegans in axenic liquid media and creation of transgenic worms by microparticle bombardment
Uploaded: 2014-08-02T15:00:00
Description: Watch this Scientific Journal Video about Culturing Caenorhabditis elegans in Axenic Liquid Media and Creation of Transgenic Worms by Microparticle Bombardment at JoVE.com

Este trabalho foi financiado pelos Institutos Nacionais de HealthGrants DK85035 e DK074797 (IH).

1. Cepas Worm <ol><li> Obter C. elegans do tipo selvagem estirpes Bristol N2 a partir do Centro de Genética Caenorhabditis (CGC) (http://www.cbs.umn.edu/cgc) e mantê-los em placas NGM semeados com E. OP50 coli 7. Nota: verme transgênico cepas IQ6011 (Phrg-1 :: GFP) utilizados foram gerados como descrito anteriormente 11. IQ6011 pode ser solicitado ao autor correspondente. </li></ol> 2. Preparação de modificação <em...

<ol>
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R., Hansen, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Lessons+from+C+elegans+signaling+pathways+for+longevity.">Lessons from C elegans signaling pathways for longevity.</a> Trends in endocrinology and metabolism TEM. 23, 637-644 (2012).</li><li>Kenyon, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+plasticity+of+aging+insights+from+long-lived+mutants.">The plasticity of aging insights from long-lived mutants.</a> Cell. 120, 449-460 (2005).</li><li>Vanfleteren, J. R., Braeckman, B. 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Y., Szilagyi, M. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Use+of+CeHR+Axenic+Medium+for+Exposure+and+Gene+Expression+Studies.">Use of CeHR Axenic Medium for Exposure and Gene Expression Studies.</a> East Coast Worm Meeting. , (2002).</li><li>Severance, S., 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=Genome-wide+analysis+reveals+novel+genes+essential+for+heme+homeostasis+in+Caenorhabditis+elegans.">Genome-wide analysis reveals novel genes essential for heme homeostasis in Caenorhabditis elegans.</a> PLoS genetics. 6, e1001044 (2010).</li><li>Rajagopal, 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=Haem+homeostasis+is+regulated+by+the+conserved+and+concerted+functions+of+HRG-1+proteins.">Haem homeostasis is regulated by the conserved and concerted functions of HRG-1 proteins.</a> Nature. 453, 1127-1131 (2008).</li><li>Nass, R., Hamza, I. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Chapter+1+Unit+1+9.">Chapter 1 Unit 1 9.</a> The nematode C. elegans as an animal model to explore toxicology in vivo: solid and axenic growth culture conditions and compound exposure parameters. 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Neste protocolo, apresentamos uma mCeHR mídia modificado axênica líquido que permite a rápida C. geração elegans com a produção de um grande número de vermes. Esta mídia mostra várias vantagens como os vermes são cultivados sem contaminar E. coli ou subprodutos de bactérias e pode ser explorada em estudos nutricionais e toxicológicos. O uso de E. coli ou outras bactérias em tais estudos tem vários inconvenientes. Por exemplo, o crescimento das bactérias podem mudar, s...

O nematóide do solo, Caenorhabditis elegans, é um poderoso organismo modelo utilizado em inúmeros estudos da genética à toxicologia. Como resultado do seu tamanho 1 mm de tempo de geração rápida de quatro dias, a facilidade de cultivo, e um grande número da progenitura, estes nemátodos têm sido utilizados num certo número de telas genéticos e farmacológicos 1, 2. Pesquisadores tirar proveito deste worm para identificar moléculas e vias conservadas em sistemas de vertebrados. Estas vias incluem sinais de morte celular, as vias de envelhecimento e metabolismo, e o sistema nervoso 3-6. Além disso, a transparência da C. elegans permite a geração de linhas transgénicas usando repórteres de proteínas fluorescentes, que podem ser visualizadas directamente para analisar os padrões de expressão de genes e localização de proteínas. Em muitos estudos desse nematóide é cultivado em uma superfície à base de agar sólido usando nematóide meio de crescimento placas (NGM) ou lculturas iquid semeada com Escherichia coli como uma fonte de alimento 7,8. Estas fontes alimentares bacterianas podem confundir estudos bioquímicos e toxicológicos com a interferência de bactérias subprodutos que afetam a interpretação dos resultados. A fim de evitar estes efeitos combinados, C. elegans podem ser cultivadas num meio líquido axênicos que é desprovido de bactérias como uma fonte de alimento. Usando essa mídia, cultivadas com sucesso milhões de vermes altamente sincronizadas para muitos padrão C. protocolos elegans, incluindo a análise de microarray de genes diferencialmente regulados em C. elegans expostas a diferentes concentrações de heme e a produção de vermes transgénicas usando bombardeamento de genes. Esta mídia é quimicamente definidos e modificados a partir de uma receita original formulada pelo Dr. Eric Clegg 9. Utilizando este suporte mCeHR, identificámos com sucesso genes envolvidos na homeostase do heme, que se refere a genes que respondem a heme (hrg s) 10, o qual farianão ter sido possível em condições de crescimento normais que utilizam placas de agar semeadas com E. NGM coli. Neste protocolo, descrevemos o procedimento para a introdução e manutenção de C. elegans crescidos em E. coli para o mCeHR axênica e utilizar este método para obter um grande número de vermes para a produção transgénica C. linhas elegans utilizando micropartículas bombardeio. Nós também apresentamos estudos que mostram a utilidade de usar mídia axênicos para determinar a exigência nutricional de C. elegans utilizando heme como um exemplo. Estes estudos mostram que o uso de meios de comunicação mCeHR permite o crescimento rápido de um grande número de C. elegans para muitas aplicações a jusante utilizados por pesquisadores verme.

<table border="0" cellpadding="0" cellspacing="0" width="754">
	<tbody>
		<tr height="25">
			<td height="25" style="height:25px;width:359px;">MgCl2.6H2O</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">M-2393</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Sodium citrate</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">S-4641</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Potassium citrate.H2O</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">P-1722</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">CuCl2.2H2O</td>
			<td style="width:108px;">Fisher</td>
			<td style="width:121px;">C455-500</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">MnCl2.4H2O</td>
			<td style="width:108px;">Fisher</td>
			<td style="width:121px;">M87-100</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">ZnCl2</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">Z-0152</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">Fe(NH4)2(SO4)2.6H2O</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">F-1018</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;">CaCl2.2H2O</td>
			<td style="width:108px;">Fisher</td>
			<td style="width:121px;">C70-500</td>
			<td style="width:167px;"></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Adenosine 5 -monophosphate, sodium salt</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">A-1752</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Cytidine 5 -phosphate</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">C-1006</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Guanosine 2 - and3&#160; -monophosphate</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">G-8002</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Uridine 5 -phosphate, disodium salt</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">U-6375</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Thymine&#160;</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">T0376</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">N-Acetylglucosamine</td>
			<td style="width:108px;">Sigma</td>
			<td>A3286</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">DL-Alanine</td>
			<td style="width:108px;">Fisher</td>
			<td>S25648&#160;</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">p-Aminobenzoic Acid</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">A-9878</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Biotin</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">B-4639</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Cyanocobalamine (B-12)</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">V-2876</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Folinate (Ca)&#160;</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">F-7878</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Niacin</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">N-0761</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Niacinamide</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">N-3376</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Pantetheine</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">P-2125</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Pantothenate (Ca)</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">P-6292</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Pteroylglutamic Acid (Folic Acid)</td>
			<td style="width:108px;">ACRCS</td>
			<td style="width:121px;">21663-0100</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Pyridoxal 5&#39;-phosphate</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">P-3657</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Pyridoxamine.2HCl</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">P-9158</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Pyridoxine.HCl</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">P-6280</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:359px;">Riboflavin 5-PO4(Na)</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">R-7774</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Thiamine.HCl</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">T-1270</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">DL-6,8-Thioctic Acid</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">T-1395</td>
			<td></td>
		</tr>
		<tr height="25">
			<td height="25" style="height:25px;width:359px;">KH2PO4</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">P-5379</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Choline di-acid citrate</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">C-2004</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">myo-Inositol</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">I-5125</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">D-Glucose</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">G-7520</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Lactalbumin enzymatic hydrolysate</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">L-9010</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Brain Heart Infusion</td>
			<td style="width:108px;">BD</td>
			<td style="width:121px;">211065</td>
			<td></td>
		</tr>
		<tr height="42">
			<td height="42" style="height:42px;width:359px;">Hemin chloride</td>
			<td style="width:108px;">Frontier Scientific</td>
			<td style="width:121px;">H651-9</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">HEPES, Na salt</td>
			<td style="width:108px;">Sigma</td>
			<td style="width:121px;">H-3784</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;width:359px;">Cholesterol</td>
			<td style="width:108px;">J.T. Baker</td>
			<td style="width:121px;">F676-05</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">MEM Non-Essential Amino Acids</td>
			<td style="width:108px;">Invitrogen</td>
			<td>11140-076</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">MEM Amino Acids Solution</td>
			<td style="width:108px;">Invitrogen</td>
			<td>11130-051</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Nalidixic acid sodium salt</td>
			<td style="width:108px;">Sigma</td>
			<td>N4382</td>
			<td></td>
		</tr>
		<tr height="21">
			<td height="21" style="height:21px;">Tetracycline Hydrochloride</td>
			<td style="width:108px;">MP Biomedicals</td>
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culturing caenorhabditis elegans in axenic liquid media and creation of transgenic worms by microparticle bombardment

Neste protocolo, apresentamos os materiais necessários, bem como o procedimento para a tomada de C modificado. Legans e habituação e de reprodução da mídia (mCeHR). Além disso, as etapas para expor e aclimatação C. elegans crescidos em E. coli para axênica meios líquidos são descritos. Finalmente, experimentos a jusante que utilizam axênica C. elegans ilustrar os benefícios deste procedimento. A capacidade de analisar e determinar C. elegans exigência nutricional foi ilustrada pelo crescimento N2 tipo selvagem vermes em meio líquido axênicos com concentrações variadas de heme. Este procedimento pode ser replicado com outros nutrientes para determinar a concentração óptima para o crescimento e desenvolvimento de sem-fim ou, para determinar os efeitos toxicológicos de tratamentos com drogas. Os efeitos da concentração do heme variadas sobre o crescimento de tipo selvagem vermes foram determinados por meio de observação microscópica qualitativa e quantificando tele número de vermes que cresciam em cada concentração de heme. Além disso, o efeito de concentrações variadas de nutrientes pode ser ensaiada utilizando vermes que expressam sensores fluorescentes que respondem a alterações nos teores de nutrientes de interesse. Além disso, um grande número de vermes foram facilmente produzida para a geração de C. elegans transgénicos utilizando bombardeamento com micropartículas.

Cultivar C. elegans em axênicos ajudas meio líquido na determinação de nutrientes que são necessários por vermes, sem a interferência de metabólitos secundários produzidos por E. coli. Vermes de tipo selvagem N2 aclimatar a mídia mCeHR dentro de três gerações e mostrar um crescimento comparável a vermes cultivadas em placas bacterianas NGM. Na verdade, esses vermes se tornar grávida dentro de 4 dias, em comparação com 3,5 dias para vermes cultivadas em OP50 bactérias. <p class="jo...

Watch this Scientific Journal Video about Culturing Caenorhabditis elegans in Axenic Liquid Media and Creation of Transgenic Worms by Microparticle Bombardment at JoVE.com

Culturing Caenorhabditis elegans in Axenic Liquid Media and Creation of Transgenic Worms by Microparticle Bombardment

C. elegans é normalmente cultivadas em placas de agar sólido ou em meio líquido semeadas com E. coli. Para evitar subprodutos bacterianos de confundir os estudos toxicológicos e nutricionais, utilizamos um meio líquido axênico, CEHR, para crescer e sincronizar um grande número de vermes para uma gama de aplicações a jusante.

A cultura<em&gt; Caenorhabditis elegans</em &gt; Em Axenic Liquid Media e Criação de transgênicos Worms por bombardeamento com micropartículas

In this protocol, we present the required materials, and the procedure for making modified&#160;C. elegans&#160;Habituation and Reproduction media ...

Research

JoVE Journal

Biology

Culturing Caenorhabditis elegans in Axenic Liquid Media and Creation of Transgenic Worms by Microparticle Bombardment

Measuring Caenorhabditis elegans Life Span on Solid Media

Measuring Caenorhabditis elegans Life Span on Solid Media

Medição Caenorhabditis elegans Expectativa de Vida em meios sólidos

Aging is a degenerative process characterized by a progressive deterioration of cellular components and organelles resulting in mortality. The nematode ...

Biologia

Generation of Transgenic C. elegans by Biolistic Transformation

Generation of Transgenic C. elegans by Biolistic Transformation

Geração de transgênicos C. elegans Por biobalística Transformação

The number of laboratories using the free living nematode C. elegans is rapidly growing. The popularity of this biological model is attributed to a rapid ...

Isolation and In vitro Activation of Caenorhabditis elegans Sperm

Isolation and In vitro Activation of Caenorhabditis elegans Sperm

Isolamento e In vitro A ativação do Caenorhabditis elegans Sperm

Males and hermaphrodites are the two naturally found sexual forms in the nematode C. elegans. The amoeboid sperm are produced by both males and ...

Time-lapse Microscopy of Early Embryogenesis in Caenorhabditis elegans

Time-lapse Microscopy of Early Embryogenesis in Caenorhabditis elegans

Lapso de tempo Microscopia de embriogênese inicial em Caenorhabditis elegans

Caenorhabditis elegans has often been used as a model system in studies of early developmental processes.  The transparency of the 
embryos, the genetic ...

Basic Caenorhabditis elegans Methods: Synchronization and Observation

Basic Caenorhabditis elegans Methods: Synchronization and Observation

Básico<em&gt; Caenorhabditis elegans</em&gt; Métodos: Sincronização e observação

Research into the molecular and developmental biology of the nematode Caenorhabditis elegans was begun in the early seventies by Sydney Brenner and it has ...

Prostaglandin Extraction and Analysis in Caenorhabditis elegans

Prostaglandin Extraction and Analysis in Caenorhabditis elegans

Extração de prostaglandina e Análise em<em&gt; Caenorhabditis elegans</em

Caenorhabditis elegans is emerging as a powerful animal model to study the biology of lipids1-9. Prostaglandins are an important class of eicosanoids, ...

Culturing of Human Nasal Epithelial Cells at the Air Liquid Interface

A cultura de células epiteliais nasais Humano na interface ar líquido

In vitro models using human primary  epithelial cells are essential in understanding key functions of the respiratory  epithelium in the context of ...

A Screenable In Vivo Assay for Mitochondrial Modulators Using Transgenic Bioluminescent Caenorhabditis elegans

A Screenable In Vivo Assay for Mitochondrial Modulators Using Transgenic Bioluminescent Caenorhabditis elegans

A rastreï¿½el<em&gt; In Vivo</em&gt; Ensaio para mitocondrial Modulators Usando Transgenic Bioluminescent<em&gt; Caenorhabditis elegans</em

The multicellular model organism Caenorhabditis elegans is a small nematode of approximately 1 mm in size in adulthood that is genetically and ...

Cultivation of Caenorhabditis elegans in Three Dimensions in the Laboratory

Cultivation of Caenorhabditis elegans in Three Dimensions in the Laboratory

cultivo de<em&gt; Caenorhabditis elegans</em&gt; Em três dimensões em Laboratório

The use of genetic model organisms such as Caenorhabditis elegans has led to seminal discoveries in biology over the last five decades. Most of what we ...

Combined Nucleotide and Protein Extractions in Caenorhabditis elegans

Combined Nucleotide and Protein Extractions in Caenorhabditis elegans

Combinado nucleotídeos e proteínas extrações em Caenorhabditis elegans

A single biological sample holds a plethora of information, and it is now common practice to simultaneously investigate several macromolecules to capture ...