This invention is new peptide and something regarding this use, from details amino acid arrangement of arrangement number 1 or amino acid arrangement of arrangement number 1 and among the amino acid arrangements which at least possess arrangement homology of 90% or more, the fact that it prescribes at the quantity which is effective to the individual which needs this peptide and the aforementioned peptide which include the amino acid arrangement 21 or 41 it continues include, it regards the multiplication promotion method and healing of wound promotion method of the fibroblast.本発明は新規なペプチド及びこれの用途に関するものであり、より詳しくは配列番号1のアミノ酸配列又は配列番号1のアミノ酸配列と少なくとも90%以上の配列相同性を有するアミノ酸配列のうち、連続する21個乃至41個のアミノ酸配列を含むペプチド及び前記ペプチドをこれを必要とする個体に有効な量で投与することを含む、繊維芽細胞の増殖促進方法及び創傷治癒促進方法に関する。
