Abstract
Porcine skin (PS) gelatin suppressed proliferation of a murine hepatic cell carcinoma cell line, MH134, a murine fibrosarcoma cell line, Meth A and a murine T cell lymphoma cell line, RL Male 1. The magnitude of suppression of the proliferation by cold water fish skin (CWFS) or bovine bone (BB) gelatin was lower than that by PS gelatin. On the other hand, BB gelatin stimulated proliferation of murine spleen cells. The magnitude of stimulation of the proliferation by CWFS gelatin was lower than that by BB gelatin. PS gelatin slightly suppressed proliferation of murine spleen cells. PS gelatin induced apoptosis but not necrosis of MH134 tumor cells. CWFS gelatin induced weaker apoptosis of the cells than PS gelatin. DNA histogram indicated that PS and CWFS gelatins acted on MH134 tumor cells to increase ratios of G2 + M-phase.
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