Zhang [8] observed the effects of LBP fractions on human liver cancer cells (SMMC-7721) and found that LBP-a4 with an MW of 10.2 kDa could inhibit the proliferation of SMMC-7721 cells in a dose- and time-dependent manner, but LBP-p8 with an MW of 6.50 × 103 kDa could promote the growth of SMMC-7721 cells. This evidence concerns the gene LBP and liver cancer.