Use of integrin alpha 6 transcripts in a stool mRNA assay for the detection of colorectal cancers at curable stages

Oncotarget
Jean-François BeaulieuÉric Tremblay

Abstract

An important criterion for colorectal cancer (CRC) screening is the ability to detect lesions at a curable stage. In the present study, we have assessed the integrin α6 subunit transcript (ITGA6) as part of a stool assay for the detection of colorectal lesions. In comparison with control samples, ITGA6 levels were found to be significantly increased at all stages (P < 0.01). Receiver operating characteristic analysis revealed areas under the curve of 0.89 for the prediction of CRC with 81% sensitivity and 88% specificity and of 0.90 for the prediction of advanced adenomas (Ad) with 75% sensitivity and 88% specificity. The ITGA6A variant was also found to be increased relative to ITGA6 in stage II and III CRCs. Combining ITGA6 with other selected transcripts and/or immunochemical fecal occult blood test (iFOBT) results further increased sensitivity and specificity for the detection of colorectal lesions. ITGA6 detection used alone and under various combinations including detection of other mRNA markers and iFOBT was assessed on stool samples obtained from 175 patients (91 CRCs, 24 Ad and 60 healthy controls). These data confirm the usefulness and reliability of an mRNA stool assay for the detection of colorectal lesions. The val...Continue Reading

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Citations

May 20, 2017·World Journal of Gastroenterology : WJG·Elizabeth HerringJean-François Beaulieu
Jun 3, 2017·Virchows Archiv : an International Journal of Pathology·M C J van LanschotG A Meijer

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PCR
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Prism
GraphPad

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