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Squamous cell carcinoma antigen (SCCA) and CYFRA 21-1 have been reported as useful tumor markers for esophageal squamous cell carcinoma (ESCC), but no information has yet been reported about the relationship between these serum tumor markers and tissue proliferative activity (Ki-67) in ESCC patients. To study the correlation between SCCA, CYFRA 21-1, Ki-67, and clinicopathological factors in ESCC patients. Pretreatment SCCA and CYFRA 21-1 serum levels were measured, while the expression of Ki-67 was assessed on tumor tissue. The associations between these biomarkers, clinicopathological factors, and overall survival were analyzed. One hundred sixty six patients participated in this study. Elevated SCCA and CYFRA 21-1 were found in 78.9% and 50.0% of the patients, respectively, while 42.8% had both serum markers elevated. The SCCA and CYFRA 21-1 levels were not correlated (p = 0.128) to each other nor to age, sex, T N, M location, grade, or Ki-67. High Ki-67 expression levels were significantly correlated with T4 (p = 0.010), M1 (p = 0.010), and poor grade (p = 0.015) but not to age, sex, N, or location. Levels of SCCA, CYFRA 21-1, and Ki-67, alone or in any combination, were not correlated to survival of patients. The authors showed that Ki-67 in tumor tissue is probably a more reliable marker than serum SCCA and CYFRA 21-1 in predicting the clinical course of ESCC.

Citation

Somkiat Sunpaweravong, Puttisak Puttawibul, Patrapim Sunpaweravong, Anupong Nitiruangjaras, Pleumjit Boonyaphiphat, Marisa Kemapanmanus. Correlation between Serum SCCA and CYFRA 2 1-1, Tissue Ki-67, and Clinicopathological Factors in Patients with Esophageal Squamous Cell Carcinoma. Journal of the Medical Association of Thailand = Chotmaihet thangphaet. 2016 Mar;99(3):331-7

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PMID: 27276745

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