Conclusion Keratinocytes can grow on collagen sponge and migrate onto wound to develop into stratified epithelia and inhibit wound contract.The keratinocyte graft can be used to repair skin defect.

• 结论体外培养的表皮细胞能在胶原海绵上生长，移植到创面上后，该细胞可自动移行到创面并形成多层表皮结构，抑制创面收缩，可用于修复皮肤缺损。