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Journal Article
Research Support, U.S. Gov't, Non-P.H.S.
Blood group antigen A and flow cytometric analysis in resected early-stage non-small cell lung cancer.
Clinical Cancer Research 1997 January
The loss of blood group antigen A on tumor tissue has been reported to be a strong adverse prognostic marker for patients with resected non-small cell lung cancer (NSCLC). Results have varied with respect to the prognostic significance of flow cytometric data. We sought to confirm the prognostic significance of blood group antigen A loss and flow cytometry in a large cohort of patients with early-stage NSCLC. Two hundred and sixty patients with surgically resected stage I (n = 193) and II (n = 67) NSCLC with at least a 5-year follow-up were identified. Using paraffin-embedded primary tumor, immunohistochemical stains for blood group antigen A were performed on 90 patients with blood type A or AB. The DNA index and percentage of cells in S phase were successfully obtained on 188 and 152 patients, respectively. The median survival time of the patients with primary tumors negative for blood group antigen A was 38 months (n = 36), compared with 98 months (n = 54) for those with antigen A-positive tumors (P < 0.01). The median disease-free survival times for antigen A-negative and -positive tumors were 26 months and 98 months, respectively (P < h 0.01). The median survival time of the patients with aneuploid tumors was 51 months (n = 131), compared with 50 months (n = 57) for those with diploid tumors (P = 0.42). The median survival time of the patients with S phase >8% was 44 months (n = 105), compared with 60 months (n = 47) for those with S phase
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