A modified chemokine peptide comprising a peptide sequence, wherein the N-terminus of the peptide sequence comprises: (a) a "Glutamate -Leucine -Arginine " sequence, defined as an A characteristic sequence, wherein the A characteristic sequence is situated at the N-terminus of the modified chemokine peptide; (b) a "Proline -Alanine -Serine -Glutamine -Phenylalanine " sequence, defined as a B characteristic sequence, wherein the B characteristic sequence is neighbored to the upstream of the third cysteine counted from N-terminus of a chemokine peptide, and wherein the modified chemokine peptide comprises the A characteristic sequence, the B characteristic sequence, and a modified position, wherein the modified position is situated at the 17 th, 12 th, or 13 th position counted from the N-terminus of the modified chemokine peptide, wherein the phenylalanine at the 17 th position from the N-terminus of the modified chemokine peptide is substituted with leucine, valine, or isoleucine, or the threonine at the 12 th position from the N-terminus of the modified chemokine peptide is substituted with serine,or the tyrosine at the 13 th position from the N-terminus of the modified chemokine peptide is substituted with leucine, phenylalanine, Tryptophan, or isoleucine, and wherein the source chemokine peptide is selected from the group consisting of SEQ ID NO: 1, and SEQ ID NO: 2. (a) a "Glutamate -Leucine -Arginine " sequence, defined as an A characteristic sequence, wherein the A characteristic sequence is situated at the N-terminus of the modified chemokine peptide; (b) a "Proline -Alanine -Serine -Glutamine -Phenylalanine " sequence, defined as a B characteristic sequence, wherein the B characteristic sequence is neighbored to the upstream of the third cysteine counted from N-terminus of a chemokine peptide, and wherein the modified chemokine peptide comprises the A characteristic sequence, the B characteristic sequence, and a modified position, wherein the modified position is situated at the 17 th, 12 th, or 13 th position counted from the N-terminus of the modified chemokine peptide, wherein the phenylalanine at the 17 th position from the N-terminus of the modified chemokine peptide is substituted with leucine, valine, or isoleucine, or the threonine at the 12 th position from the N-terminus of the modified chemokine peptide is substituted with serine,or the tyrosine at the 13 th position from the N-terminus of the modified chemokine peptide is substituted with leucine, phenylalanine, Tryptophan, or isoleucine, and wherein the source chemokine peptide is selected from the group consisting of SEQ ID NO: 1, and SEQ ID NO: 2. wherein the modified chemokine peptide comprises the A characteristic sequence, the B characteristic sequence, and a modified position, wherein the modified position is situated at the 17 th, 12 th, or 13 th position counted from the N-terminus of the modified chemokine peptide, wherein the phenylalanine at the 17 th position from the N-terminus of the modified chemokine peptide is substituted with leucine, valine, or isoleucine, or the threonine at the 12 th position from the N-terminus of the modified chemokine peptide is substituted with serine,or the tyrosine at the 13 th position from the N-terminus of the modified chemokine peptide is substituted with leucine, phenylalanine, Tryptophan, or isoleucine, and the threonine at the 12 th position from the N-terminus of the modified chemokine peptide is substituted with serine,or the tyrosine at the 13 th position from the N-terminus of the modified chemokine peptide is substituted with leucine, phenylalanine, Tryptophan, or isoleucine, and wherein the source chemokine peptide is selected from the group consisting of SEQ ID NO: 1, and SEQ ID NO: 2.