Name: 'bioluminescent' reporter phage for the detection of category a bacterial pathogens
Uploaded: 2011-07-08T12:00:00
Description: Watch this Scientific Journal Video about 'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens at JoVE.com

इस शोध राष्ट्रीय स्वास्थ्य संस्थान के लघु व्यापार नवाचार अनुसंधान कार्यक्रम (NIAID, 1R43AI082698-01) और खाद्य और कृषि USDA राष्ट्रीय संस्थान (NIFA, 2009-33610-20028) के द्वारा समर्थित किया गया.

1. वाई. pestis थाली टीका <ol><li> स्ट्रीक वाई pestis (BeiResources NR15 #) A1122 Luria - Bertani पर शेयर संस्कृतियों (पौंड) अगर (मिलर). बाँझ तकनीक का प्रयोग करें और सभी वाई प्रदर्शन एक वर्ग द्वितीय प्रकार एक जैव सुरक्षा कैबिनेट वाई pestis...

<ol>
	<li>Darling, R. G., Catlett, C. L., Huebner, K. D., Jarrett, D. G. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Threats+in+bioterrorism.+I:+CDC+category+A+agents.">Threats in bioterrorism. I: CDC category A agents.</a> Emerg Med Clin North Am. 20, 273-309 (2002).</li><li>Chu, M. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> Laboratory manual of plague diagnostic tests.. , (2000).</li><li>. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> , (1999).</li><li>Inglesby, T. V. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Anthrax+as+a+biological+weapon,+2002:+updated+recommendations+for+management.">Anthrax as a biological weapon, 2002: updated recommendations for management.</a> JAMA. 287, 2236-2252 (2002).</li><li>Schuch, R., Fischetti, V. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Detailed+genomic+analysis+of+the+Wbeta+and+gamma+phages+infecting+Bacillus+anthracis:+implications+for+evolution+of+environmental+fitness+and+antibiotic+resistance.">Detailed genomic analysis of the Wbeta and gamma phages infecting Bacillus anthracis: implications for evolution of environmental fitness and antibiotic resistance.</a> J Bacteriol. 188, 3037-3051 (2006).</li><li>Garcia, E. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+genome+sequence+of+Yersinia+pestis+bacteriophage+phiA1122+reveals+an+intimate+history+with+the+coliphage+T3+and+T7+genomes.">The genome sequence of Yersinia pestis bacteriophage phiA1122 reveals an intimate history with the coliphage T3 and T7 genomes.</a> J Bacteriol. 185, 5248-5262 (2003).</li><li>Schofield, D. A., Molineux, I. J., Westwater, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Diagnostic+bioluminescent+phage+for+detection+of+Yersinia+pestis.">Diagnostic bioluminescent phage for detection of Yersinia pestis.</a> Journal of Clinical Microbiology. 47, 3887-3894 (2009).</li><li>Schofield, D. A., Westwater, C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Phage-mediated+bioluminescent+detection+of+Bacillus+anthracis.">Phage-mediated bioluminescent detection of Bacillus anthracis.</a> Journal of Applied Microbiology. 107, 468-478 (2009).</li><li>Chu, M. C. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=.">.</a> CDC: Basic laboratory protocols for the presumptive identification of Yersinia pestis. , 1-19 (2001).</li><li>Gunnison, J. B., Larson, A., Lazarus, A. S. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rapid+differentiation+between+Pasteurella+pestis+and+Pasteurella+pseudotuberculosis+by+action+of+bacteriophage.">Rapid differentiation between Pasteurella pestis and Pasteurella pseudotuberculosis by action of bacteriophage.</a> J Infect Dis. 88, 254-255 (1951).</li><li>Lazarus, A. S., Gunnison, J. B. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=The+Action+of+Pasteurella+pestis+Bacteriophage+on+Strains+of+Pasteurella,+Salmonella,+and+Shigella.">The Action of Pasteurella pestis Bacteriophage on Strains of Pasteurella, Salmonella, and Shigella.</a> J Bacteriol. 53, 705-714 (1947).</li><li>Sergueev, K. V., He, Y., Borschel, R. H., Nikolich, M. P., Filippov, A. A. <a target="_blank" href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&cmd=Search&doptcmdl=Citation&defaultField=Title+Word&term=Rapid+and+sensitive+detection+of+Yersinia+pestis+using+amplification+of+plague+diagnostic+bacteriophages+monitored+by+real-time+PCR.">Rapid and sensitive detection of Yersinia pestis using amplification of plague diagnostic bacteriophages monitored by real-time PCR.</a> PLoS One. 5, e11337-e11337 (2010).</li></ol>

इस विधि संवाददाता फेज करने के लिए तेजी से वाई का पता लगाने की क्षमता को दर्शाता है संवाददाता फेज के बाद pestis एक bioluminescent संकेत सुसंस्कृत वाई के जवाब transduce कर सकते हैं फेज इसके अलावा के बाद 20 मिनट के भ?...

<table border="1"><tbody><tr><th> अभिकर्मक के नाम </th><th> कंपनी </th><th> सूचीपत्र संख्या </th></tr><tr><td> Difco लेग अगर, मिलर </td><td> VWR </td><td> 90003-346 </td></tr><tr><td> Difco पौंड शोरबा, मिलर </td><td> VWR </td><td> 90003-350 </td></tr><tr><td> 17 x 100 मिमी संस्कृति ट्यूबों </td><td> संयुक्त राज्य अमेरिका वैज्ञानिक </td><td> 1485-0810 </td></tr><tr><td> n-डीन का </td><td> सिग्मा </td><td> D7384 </td></tr><tr><td> वेरिटास microplate luminometer </td><td> टर्नर Biosystems </td><td> 9100-001 </td></tr><tr><td> Microlite microtiter 96 अच्छी तरह से थाली </td><td> VWR </td><td> 62402-984 </td></tr></tbody></table>

'bioluminescent' reporter phage for the detection of category a bacterial pathogens

Yersinia pestis and Bacillus anthracis are Category A bacterial pathogens that are the causative agents of the plague and anthrax, respectively 1. Although the natural occurrence of both diseases&#39; is now relatively rare, the possibility of terrorist groups using these pathogens as a bioweapon is real. Because of the disease&#39;s inherent communicability, rapid clinical course, and high mortality rate, it is critical that an outbreak be detected quickly. Therefore methodologies that provide rapid detection and diagnosis are essential to ensure immediate implementation of public health measures and activation of crisis management.
Recombinant reporter phage may provide a rapid and specific approach for the detection of Y. pestis and B. anthracis. The Centers for Disease Control and Prevention currently use the classical phage lysis assays for the confirmed identification of these bacterial pathogens 2-4. These assays take advantage of naturally occurring phage which are specific and lytic for their bacterial hosts. After overnight growth of the cultivated bacterium in the presence of the specific phage, the formation of plaques (bacterial lysis) provides a positive identification of the bacterial target. Although these assays are robust, they suffer from three shortcomings: 1) they are laboratory based; 2) they require bacterial isolation and cultivation from the suspected sample, and 3) they take 24-36 h to complete. To address these issues, recombinant &#34;light-tagged&#34; reporter phage were genetically engineered by integrating the Vibrio harveyi luxAB genes into the genome of Y. pestis and B. anthracis specific phage 5-8. The resulting luxAB reporter phage were able to detect their specific target by rapidly (within minutes) and sensitively conferring a bioluminescent phenotype to recipient cells. Importantly, detection was obtained either with cultivated recipient cells or with mock-infected clinical specimens 7.
For demonstration purposes, here we describe the method for the phage-mediated detection of a known Y. pestis isolate using a luxAB reporter phage constructed from the CDC plague diagnostic phage &#934;A1122 6,7 (Figure 1). A similar method, with minor modifications (e.g. change in growth temperature and media), may be used for the detection of B. anthracis isolates using the B. anthracis reporter phage W&#946;::luxAB 8. The method describes the phage-mediated transduction of a biolumescent phenotype to cultivated Y. pestis cells which are subsequently measured using a microplate luminometer. The major advantages of this method over the traditional phage lysis assays is the ease of use, the rapid results, and the ability to test multiple samples simultaneously in a 96-well microtiter plate format.
<img alt="Figure 1" src="/files/ftp_upload/2740/2740fig1.jpg" /> 
Figure 1. Detection schematic. The phage are mixed with the sample, the phage infects the cell, luxAB are expressed, and the cell bioluminesces. Sample processing is not necessary; the phage and cells are mixed and subsequently measured for light.

Watch this Scientific Journal Video about 'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens at JoVE.com

'Bioluminescent' Reporter Phage for the Detection of Category A Bacterial Pathogens

प्राथमिकता बैक्टीरियल रोगज़नक़ों की पहचान के लिए एक सरल तरीका अनुवांशिक इंजीनियर संवाददाता फेज का उपयोग करने के लिए है. ये रिपोर्टर फेज है, जो उनके विशेष मेजबान प्रजातियों के लिए विशिष्ट हैं तेजी से bioluminescent संकेत मेजबान कोशिकाओं के जवाब transducing में सक्षम हैं. इस के साथ साथ, हम रिपोर्टर का पता लगाने के लिए फेज का उपयोग का वर्णन<em&gt; Yersinia pestis</em&gt;.

श्रेणी बैक्टीरियल रोगज़नक़ों की जांच के लिए &#39;bioluminescent&#39; रिपोर्टर फेज

Yersinia pestis and Bacillus anthracis are Category A bacterial pathogens that are the causative agents of the plague and anthrax, respectively 1. ...

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