Figure 1

Immunoblot analysis for protein expression of placental leucine aminopeptidase (P-LAP) and adipocyte-derived leucine aminopeptidase (A-LAP) in trophoblastic tissues and cell lines. P-LAP was detected as a 180-kDa band, while A-LAP was detected as a 110-kDa band. Lane 1, 18-week normal placenta; Lanes 2 to 6, five different choriocarcinoma tissues obtained from patient numbers 1 to 5 as shown in Table 2; Lane 7, BeWo cells; and Lane 8, JEG3 cells.