Abstract

Wound healing substance (WHS) from cultured Clostridium perfringens has been reported to be effective in the treatment of wounds. The effects of WHS, now named SNK-863, on proliferation and differentiation of human keratinocytes were examined. The characteristics of WHS are as follows: 1) WHS stimulates human keratinocyte growth and DNA synthesis; 2) WHS and EGF show some additive effects on human keratinocyte growth; 3) WHS does not interfere with the binding of EGF to its receptor; 4) WHS does not counteract the growth inhibitory effects of TGF-beta or vitamin D3 on human keratinocytes; 5) WHS has no significant effect on human keratinocyte differentiation. These results indicate that the growth-promoting effect of WHS on keratinocytes may contribute to the treatment of wound healing.

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