Restoration of fragile histidine triad (FHIT) expression inhibits cell growth and induces apoptosis in cutaneous T-cell lymphoma cell line.

To investigate the effects of fragile histidine triad (FHIT) restoration on cell proliferation and apoptosis in human cutaneous T-cell lymphoma cell line, Hut-78, in vitro and in nude mouse. Wild-type FHIT gene was transfected by liposome into the Hut-78 cells. The alteration of cell growth curve and soft agar colony formation was studied in vitro and in nude mice. The FHIT gene was stably expressed in Hut-78 cells after the transfection. Compared with the controls, restoration of FHIT expression inhibited cell growth and induced apoptosis. Tumor formation in vivo was strongly suppressed by FHIT gene restoration. Our data demonstrate restoration of FHIT gene expression inhibit the tumor cell growth and provide an option for the treatment.