Expression stability of commonly used reference genes in canine articular connective tissues
Identifieur interne : 000E86 ( Main/Exploration ); précédent : 000E85; suivant : 000E87Expression stability of commonly used reference genes in canine articular connective tissues
Auteurs : Duncan Ayers [Royaume-Uni] ; Dylan N. Clements [Royaume-Uni] ; Fiona Salway [Royaume-Uni] ; Philip Jr Day [Royaume-Uni, Allemagne]Source :
- BMC Veterinary Research [ 1746-6148 ] ; 2007.
Abstract
The quantification of gene expression in tissue samples requires the use of reference genes to normalise transcript numbers between different samples. Reference gene stability may vary between different tissues, and between the same tissue in different disease states. We evaluated the stability of 9 reference genes commonly used in human gene expression studies. Real-time reverse transcription PCR and a mathematical algorithm were used to establish which reference genes were most stably expressed in normal and diseased canine articular tissues and two canine cell lines stimulated with lipolysaccaride (LPS).
The optimal reference genes for comparing gene expression data between normal and diseased infrapatella fat pad were
The reference genes demonstrating the most stable expression within each different canine articular tissue were identified, but no single reference gene was identified as having stable expression in all different tissue types. This study underlines the necessity to select reference genes on the basis of tissue and disease specific expression profile evaluation and highlights the requirement for the identification of new reference genes with greater expression stability for use in canine articular tissue gene expression studies.
Url:
DOI: 10.1186/1746-6148-3-7
PubMed: 17484782
PubMed Central: 1884148
Affiliations:
- Allemagne, Royaume-Uni
- Angleterre, District d'Arnsberg, Grand Manchester, Rhénanie-du-Nord-Westphalie
- Dortmund, Manchester
- Université de Manchester
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Le document en format XML
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<front><div type="abstract" xml:lang="en"><sec><title>Background</title>
<p>The quantification of gene expression in tissue samples requires the use of reference genes to normalise transcript numbers between different samples. Reference gene stability may vary between different tissues, and between the same tissue in different disease states. We evaluated the stability of 9 reference genes commonly used in human gene expression studies. Real-time reverse transcription PCR and a mathematical algorithm were used to establish which reference genes were most stably expressed in normal and diseased canine articular tissues and two canine cell lines stimulated with lipolysaccaride (LPS).</p>
</sec>
<sec><title>Results</title>
<p>The optimal reference genes for comparing gene expression data between normal and diseased infrapatella fat pad were <italic>RPL13A </italic>
and <italic>YWHAZ </italic>
(M = 0.56). The ideal reference genes for comparing normal and osteoarthritic (OA) cartilage were <italic>RPL13A </italic>
and <italic>SDHA </italic>
(M = 0.57). The best reference genes for comparing normal and ruptured canine cranial cruciate ligament were <italic>B2M </italic>
and <italic>TBP </italic>
(M = 0.59). The best reference genes for normalising gene expression data from normal and LPS stimulated cell lines were <italic>SDHA </italic>
and <italic>YWHAZ </italic>
(K6) or <italic>SDHA </italic>
and <italic>HMBS </italic>
(DH82), which had expression stability (M) values of 0.05 (K6) and 0.07 (DH82) respectively. The number of reference genes required to reduce pairwise variation (V) to <0.20 was 4 for cell lines, 5 for cartilage, 7 for cranial cruciate ligament and 8 for fat tissue. Reference gene stability was not related to the level of gene expression.</p>
</sec>
<sec><title>Conclusion</title>
<p>The reference genes demonstrating the most stable expression within each different canine articular tissue were identified, but no single reference gene was identified as having stable expression in all different tissue types. This study underlines the necessity to select reference genes on the basis of tissue and disease specific expression profile evaluation and highlights the requirement for the identification of new reference genes with greater expression stability for use in canine articular tissue gene expression studies.</p>
</sec>
</div>
</front>
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<li>Rhénanie-du-Nord-Westphalie</li>
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<tree><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="Ayers, Duncan" sort="Ayers, Duncan" uniqKey="Ayers D" first="Duncan" last="Ayers">Duncan Ayers</name>
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<name sortKey="Salway, Fiona" sort="Salway, Fiona" uniqKey="Salway F" first="Fiona" last="Salway">Fiona Salway</name>
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<country name="Allemagne"><region name="Rhénanie-du-Nord-Westphalie"><name sortKey="Day, Philip Jr" sort="Day, Philip Jr" uniqKey="Day P" first="Philip Jr" last="Day">Philip Jr Day</name>
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