Microarray analysis using disiloxyl 70mer oligonucleotides
Identifieur interne : 002A30 ( Main/Exploration ); précédent : 002A29; suivant : 002A31Microarray analysis using disiloxyl 70mer oligonucleotides
Auteurs : Marcus Gry Björklund [Suède] ; Christian Natanaelsson [Suède] ; Amelie Eriksson Karlström [Suède] ; Yong Hao [Suède] ; Joakim Lundeberg [Suède]Source :
- Nucleic Acids Research [ 0305-1048 ] ; 2008.
Abstract
DNA microarray technology has evolved dramatically in recent years, and is now a common tool in researchers' portfolios. The scope of the technique has expanded from small-scale studies to extensive studies such as classification of disease states. Technical knowledge regarding solid phase microarrays has also increased, and the results acquired today are more reliable than those obtained just a few years ago. Nevertheless, there are various aspects of microarray analysis that could be improved. In this article we show that the proportions of full-length probes used significantly affects the results of global analyses of transcriptomes. In particular, measurements of transcripts in low abundance are more sensitive to truncated probes, which generally increase the degree of cross hybridization and loss of specific signals. In order to improve microarray analysis, we here introduce a disiloxyl purification step, which ensures that all the probes on the microarray are at full length. We demonstrate that when the features on microarrays consist of full-length probes the signal intensity is significantly increased. The overall increase in intensity enables the hybridization stringency to be increased, and thus enhance the robustness of the results.
Url:
DOI: 10.1093/nar/gkm1145
Affiliations:
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type="main">Nucleic Acids Research</title><idno type="ISSN">0305-1048</idno><idno type="eISSN">1362-4962</idno><imprint><publisher>Oxford University Press</publisher><date type="published">2008</date><date type="e-published">2008</date><biblScope unit="vol">36</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="1334">1334</biblScope><biblScope unit="page" to="1342">1342</biblScope></imprint><idno type="ISSN">0305-1048</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0305-1048</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract">DNA microarray technology has evolved dramatically in recent years, and is now a common tool in researchers' portfolios. The scope of the technique has expanded from small-scale studies to extensive studies such as classification of disease states. Technical knowledge regarding solid phase microarrays has also increased, and the results acquired today are more reliable than those obtained just a few years ago. Nevertheless, there are various aspects of microarray analysis that could be improved. In this article we show that the proportions of full-length probes used significantly affects the results of global analyses of transcriptomes. In particular, measurements of transcripts in low abundance are more sensitive to truncated probes, which generally increase the degree of cross hybridization and loss of specific signals. In order to improve microarray analysis, we here introduce a disiloxyl purification step, which ensures that all the probes on the microarray are at full length. We demonstrate that when the features on microarrays consist of full-length probes the signal intensity is significantly increased. The overall increase in intensity enables the hybridization stringency to be increased, and thus enhance the robustness of the results.</div></front></TEI><affiliations><list><country><li>Suède</li></country></list><tree><country name="Suède"><noRegion><name sortKey="Bjorklund, Marcus Gry" sort="Bjorklund, Marcus Gry" uniqKey="Bjorklund M" first="Marcus Gry" last="Björklund">Marcus Gry Björklund</name></noRegion><name sortKey="Hao, Yong" sort="Hao, Yong" uniqKey="Hao Y" first="Yong" last="Hao">Yong Hao</name><name sortKey="Karlstrom, Amelie Eriksson" sort="Karlstrom, Amelie Eriksson" uniqKey="Karlstrom A" first="Amelie Eriksson" last="Karlström">Amelie Eriksson Karlström</name><name sortKey="Lundeberg, Joakim" sort="Lundeberg, Joakim" uniqKey="Lundeberg J" first="Joakim" last="Lundeberg">Joakim Lundeberg</name><name sortKey="Lundeberg, Joakim" sort="Lundeberg, Joakim" uniqKey="Lundeberg J" first="Joakim" last="Lundeberg">Joakim Lundeberg</name><name sortKey="Lundeberg, Joakim" sort="Lundeberg, Joakim" uniqKey="Lundeberg J" first="Joakim" last="Lundeberg">Joakim Lundeberg</name><name sortKey="Natanaelsson, Christian" sort="Natanaelsson, Christian" uniqKey="Natanaelsson C" first="Christian" last="Natanaelsson">Christian Natanaelsson</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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