Association between the preoperative Midkine (+)/CEA (+) level and poor prognosis in colorectal cancer patients
摘要
To evaluate the clinicopathological and prognostic significance of preoperative serum Midkine levels in patients with colorectal cancer.
MethodsPreoperative Midkine levels were analyzed using an enzyme-linked immunosorbent assay in 78 patients with colorectal cancer, at stages 0 (n = 2), I (n = 19), II (n = 25), III (n = 24), and IV (n = 8). Using a cut-off value of 421 pg/mL, the patients were divided into a Midkine(+) group and a Midkine(−) group. Clinicopathological factors and prognosis were compared between the two groups, using univariate and multivariate analyses.
ResultsThe overall positive rates were 46%, 32%, and 21% for CEA, Midkine, and CA19-9, respectively. The positive rate of the Midkine/CEA combination was 55%. The positive rates at stage 0/I were 19%, 19%, and 5% for CEA, Midkine, and CA19-9, respectively. The Midkine(+) group showed poor survival, but the differences were not significant. The Midkine (+)/CEA (+) group had significantly worse relapse-free survival (RFS) (p = 0.02). The Midkine (+)/CEA (+) level was an independent risk factor for RFS (p = 0.04) and overall survival (p = 0.03).
ConclusionThe Midkine (+)/CEA (+) combination may be an indicator of poor prognosis for patients with colorectal cancer.