期刊
PATHOLOGY INTERNATIONAL
卷 58, 期 8, 页码 529-532出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1440-1827.2008.02268.x
关键词
CD68; DLBCL; prognosis; TAM
类别
Tumor-associated macrophages (TAM) have been ascribed both pro- and anti-tumor properties, but the majority of clinical cancer studies have shown that the presence of a high number of TAM is related to poor prognosis, suggesting that TAM predominantly exert pro-tumoral activity. The prognostic role of TAM in patients with diffuse large B-cell lymphoma (DLBCL), however, is so far unknown. Therefore, TAM were immunohistochemically stained with a CD68 antibody in a retrospective, population-based study including 176 DLBCL patients treated with curative intent. With the exception that patients > 60 years of age had a larger number of CD68+ cells (1143 vs 1018 cells/mm(2); P = 0.05), no significant differences were found between the number of CD68+ cells and other clinical factors. Similarly, germinal center B-cell (GCB)/non-GCB immunophenotype or low/high Ki-67 percentage were not associated with CD68 expression. Finally, no significant correlation was found between the number of CD68+ cells and progression-free survival (P = 0.34) or overall survival (P = 0.94). These data indicate that the pro-tumor effect of TAM has limited clinical relevance in DLBCL patients, which could imply that therapeutic strategies aimed at enhancing their anti-tumor activity are of continuous clinical interest.
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