Angiogenin outperforms VEGF, EPCs and CECs in predicting Dukes' and AJCC stage in colorectal cancer. (18th May 2013)

• Record Type: Journal Article
• Authors: Ramcharan, Sean K.; Lip, Gregory Y. H.; Stonelake, Paul S.; Blann, Andrew D.
• Is Part Of: European journal of clinical investigation. Volume 43:Number 8(2013:Aug.)
• Page Start: 801
• Page End: 808
• Publication Date: 2013-05-18
• Subjects: Pathology -- Periodicals; Medical research -- Periodicals; 616.075
• DOI: 10.1111/eci.12108
• Languages: English
• ISSNs: 0014-2972

Abstract

<abstract abstract-type="main" id="eci12108-abs-0001"> <title>Abstract</title> <sec id="eci12108-sec-0001" sec-type="section"> <title>Background</title> <p>Circulating endothelial cells (CECs), endothelial progenitor cells (EPCs), Willebrand factor (vWf), soluble E‐selectin, vascular endothelial growth factor (VEGF) and angiogenin are of interest in cancer vascular biology. However, few studies have looked at more than one in combination. We set out to determine which would be best in predicting the Dukes' and American Joint Committee on Cancer (AJCC) scores in colorectal cancer patients.</p> </sec> <sec id="eci12108-sec-0002" sec-type="section"> <title>Methods</title> <p>We recruited 154 patients with colorectal cancer, 29 healthy controls and 26 patients with benign bowel disease. CD34<sup>+</sup>/CD45<sup>−</sup>/CD146<sup>+</sup> CECs and CD34<sup>+</sup>/CD45<sup>−</sup>/CD309[KDR]<sup>+</sup> EPCs were measured by flow cytometry, plasma markers by ELISA.</p> </sec> <sec id="eci12108-sec-0003" sec-type="section"> <title>Results</title> <p>All research indices were raised in colorectal cancer (<italic>P </italic><<italic> </italic>0·05) compared to control groups. Although CECs (<italic>P </italic><<italic> </italic>0·05), EPCs (<italic>P </italic><<italic> </italic>0·01) and angiogenin (<italic>P </italic><<italic> </italic>0·01) increased stepwise across the four Dukes' stages and four AJCC stages, only angiogenin remained significant in multiple regression analysis (<italic>P </italic>=<italic> </italic>0·003 for Dukes, <italic>P </italic>=<italic> </italic>0·01 for AJCC). Angiogenin levels were higher in Dukes' stages C and D compared to stage A, and AJCC stages 4–6 and 7–10 compared to stage 1 (all <italic>P </italic><<italic> </italic>0·05). Adding a second research marker to angiogenin did not markedly improve this relationship.</p> </sec> <sec id="eci12108-sec-0004" sec-type="section"> <title>Conclusion</title> <p>Although we found disturbances in endotheliod cells and plasma markers of the endothelium and growth factors, only angiogenin levels were independently associated with progression of the Dukes' stage and AJCC stage, with the association with Duke's stage being stronger. We suggest that angiogenin is a potential biomarker in risk stratification for colorectal cancer, and may aid clinical decision making.</p> </sec> </abstract>