As shown in Fig. 1 and summarized in Table 1, PTEN protein expression was completely absent (score 0, - in Table 1) in 9/30 tumor cell lines; among 21 cell lines with PTEN protein expression, PTEN expression was weak (score 0.1–0.3, + in Table 1) in 10, moderate (score 0.3–0.6, ++ in Table 1) in 9, and strong (score 0.6–1, +++ in Table 1) in 2. The gene discussed is PTEN; the disease is neoplasm.