CCL20 and neoplasm: Flow cytometry showed that CD3 + T cells conspicuously accumulated in Raji-MIP3α tumors at day 5 compared with Raji tumors, and the median percentage of CD3 positive cells in Raji and Raji-MIP3α tumor sites was 14.64% and 23.33% on day 3, respectively (P = 0.3098), and 15.30% and 42.45% on day 5, respectively (P = 0.0013).