J Cancer 2019; 10(22):5315-5323. doi:10.7150/jca.31267 This issue
The Significance of Serum S100A9 and TNC Levels as Biomarkers in Colorectal Cancer
1. Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, Changsha 410008, China
2. Department of Gastrointestinal Surgery, Xiangya Hospital, Central South University, Changsha, China.
3. Department of Gastroenterology, Xiangya Hospital, Central South University, Changsha 410008, China.
Zhou M, Li M, Liang X, Zhang Y, Huang H, Feng Y, Wang G, Liu T, Chen Z, Pei H, Chen Y. The Significance of Serum S100A9 and TNC Levels as Biomarkers in Colorectal Cancer. J Cancer 2019; 10(22):5315-5323. doi:10.7150/jca.31267. Available from https://www.jcancer.org/v10p5315.htm
Purpose: The aim of this study was to evaluate the diagnostic value of S100A9 and tenascin-c (TNC) levels as colorectal cancer (CRC) biomarkers in several ways, including through screening tests, differentiation tests, combination with existing biomarkers (CEA and CA19-9), and serum level measurements before and after surgery.
Materials and Methods: In this case-control study, S100A9 and TNC serum levels were measured in 460 participants: 258 CRC patients, 99 patients with benign colonic disease (BCD) and 103 healthy donors (HD).
Results: The serum levels of S100A9 were 22.32 (14.88-29.55) ng/ml, 10.02 (5.83-14.15) ng/ml and 10.05 (7.68-15.34) ng/ml in the CRC, BCD and HD groups, respectively. The serum levels of TNC were 4.30 (2.12-6.04) ng/ml, 1.60 (1.06-2.30) ng/ml and 2.00 (1.37-3.00) ng/ml in the CRC, BCD and HD groups, respectively. Significantly higher levels of both biomarkers (S100A9 and TNC) were found in CRC patients (both p<0.001).
Both S100A9 and TNC levels were superior to CEA and CA19-9 levels as CRC diagnostic biomarkers; the combination of S100A9, TNC and CEA levels was an excellent biomarker with 79.8% sensitivity and 89.6% specificity. The serum levels of S100A9 and TNC in CRC patients were significantly lower after surgery than before surgery (p<0.01).
Conclusion: S100A9 and TNC levels could serve as diagnostic biomarkers of colorectal cancer.
Keywords: S100A9, Tenascin-c, colorectal cancer, serum biomarker