(A) HT-29 and (B) CCD-18Co cells analyzed for
cell growth following 24, 48 and 72 h post transfection with FLAG-tagged empty
vector (Control Vector), GLTP overexpression vector (FLAG-GLTP), W96A-GLTP
mutant with an ablated glycolipid binding site vector
(FLAG-W96AGLTP), GLTP depletion vector (siGLTP) and
non-targeting siRNA control vector (siCtrl). Total cells were
collected and counted by hemocytometry. Experiments were done in triplicate and
values represent means ± sem. *P<0.05, **P<0.01,
**P<0.001 Student t-test. (see Supplemental Fig. S2 for HCT-116
cell data)