Abstract: Compositions for peptide therapeutics of cancer are provided. Methods of using such compositions containing the same are also described, and a step of allowing the peptide therapeutics to coexist with a cancer cell to destroy the cancer cell.

Abstract: The present invention provides a pharmaceutical composition and method for having cytotoxic activity to interact with cancer cells and destroy the cancer cells.

Abstract: The present invention provides a pharmaceutical composition and method for having cytotoxic activity to interact with cancer cells and destroy the cancer cells.

Abstract: The present invention provides a novel chemokine receptor antagonistic modified peptide. The novel chemokine receptor antagonistic modified peptide can be combined with a chemotherapeutic drug for treating cancer, especially for treating drug-resistant cancer, and inhibiting tumor growth more effectively.

Abstract: The present invention provides a novel modified chemokine peptide. The novel modified chemokine peptide can be combined with a targeted drug for treating cancer, especially for treating drug-resistant cancer, and inhibiting tumor growth more effectively.

Abstract: The present invention provides a novel modified chemokine peptide. Additionally, the novel modified chemokine peptide can be used to treat cancer and inhibit tumor growth more effectively.

Abstract: The present invention provides an evaluating system and the use thereof for the efficacy of antimicrobial peptide, which includes the following steps: (a) constructing a peptide by a first input unit, and load the peptide into an aqueous solution for a first time for equilibration; (b) constructing a lipid bilayer by a second input unit, and load the lipid bilayer into an aqueous solution for a second time for equilibration; (c) Using a first processing unit, simulations are carried out for an aqueous system containing an equilibrated peptide from the first input unit and the equilibrated lipid bilayer from the second input unit; (d) calculating the partition free energy of the peptide by a second processing unit; (e) outputting the prediction by an output unit, wherein the output unit is connected with the first processing unit and the second processing unit.

Abstract: An anti-endotoxin polypeptide is provided. The anti-endotoxin polypeptide having the formula (I) A1-L-C1, wherein A1 and C1 independently is a short peptide with ?-helix, L is AGP (Ala-Gly-Pro) or a peptide bond, and the hydrophobicity of the hydrophobic terminus in the anti-endotoxin polypeptide is between about 0.425 and 0.765. The anti-endotoxin polypeptide of the invention can neutralize the lipopolysaccharide and has the low hemolysis and high salt resistance, simultaneously. The present invention also provides a method for design an anti-endotoxin polypeptide, the anti-endotoxic activity is adjusted through increasing and/or decreasing hydrophobicity of the hydrophobic terminal end.

Abstract: A peptide with antimicrobial, anticancer and/or wound-healing promoting activities is provided. The peptide with antimicrobial, anticancer and/or wound-healing promoting activities, includes: an ?-helix peptide; and a short peptide consisting of about 4-10 positively charged amino acids, connected to an N-terminus of the ?-helix peptide to form the peptide with antimicrobial, anticancer and/or wound-healing promoting activities, wherein the total length of the peptide with antimicrobial, anticancer and/or wound-healing promoting activities is about 10-20 amino acids.

Abstract: An anti-endotoxin polypeptide is provided. The anti-endotoxin polypeptide having the formula (I) A1-L-C1, wherein A1 and C1 independently is a short peptide with ?-helix, L is AGP (Ala-Gly-Pro) or a peptide bond, and the hydrophobicity of the hydrophobic terminus in the anti-endotoxin polypeptide is between about 0.425 and 0.765. The anti-endotoxin polypeptide of the invention can neutralize the lipopolysaccharide and has the low hemolysis and high salt resistance, simultaneously. The present invention also provides a method for design an anti-endotoxin polypeptide, the anti-endotoxic activity is adjusted through increasing and/or decreasing hydrophobicity of the hydrophobic terminal end.

Abstract: The present invention provides a modified chemokine peptide, comprising (a) an “ELR” characteristic sequence which is situated at the N-terminus of the modified chemokine peptide, (b) a “PASQF” characteristic sequence which is neighbored to the upstream of the third cysteine counted from N-terminus of the chemokine peptide, and (c) a modification at the 17th position counted from the N-terminus of the modified chemokine peptide. Additionally, the modified chemokine peptide can be used to treat cancer and inhibit tumor growth.

Abstract: An antimicrobial peptide has an amino terminal and/or carboxyl terminal linked with at least one artificial bulky amino acid to increase the salt resistance and protease resistance of the antimicrobial peptide. The antimicrobial peptide of the invention has a high salt resistance, a high protease resistance, and a low hemolytic activity, simultaneously.

Abstract: A peptide with antimicrobial, anticancer and/or wound-healing promoting activities is provided. The peptide with antimicrobial, anticancer and/or wound-healing promoting activities, includes: an ?-helix peptide; and a short peptide consisting of about 4-10 positively charged amino acids, connected to an N-terminus of the ?-helix peptide to form the peptide with antimicrobial, anticancer and/or wound-healing promoting activities, wherein the total length of the peptide with antimicrobial, anticancer and/or wound-healing promoting activities is about 10-20 amino acids.

Abstract: The present invention provides an evaluating system and the use thereof for the efficacy of antimicrobial peptide, which includes the following steps: (a) constructing a peptide by a first input unit, and load the peptide into an aqueous solution for a first time for equilibration; (b) constructing a lipid bilayer by a second input unit, and load the lipid bilayer into an aqueous solution for a second time for equilibration; (c) Using a first processing unit, simulations are carried out for an aqueous system containing an equilibrated peptide from the first input unit and the equilibrated lipid bilayer from the second input unit; (d) calculating the partition free energy of the peptide by a second processing unit; (e) outputting the prediction by an output unit, wherein the output unit is connected with the first processing unit and the second processing unit.

Abstract: Disclosed is an antimicrobial peptide having an amino acid sequence of formula presented as (P1)M(nA1X1X2)N(P2)X, wherein P1 is selected from the group consisting of basic amino acids including Arg and Lys; A1 is selected from the group consisting of aromatic amino acids including Trp, Phe and Ala; X1 is selected from the group consisting of basic amino acids or nonpolar amino acids, including Arg, Lys, Val, Leu, Ala and Ile; X2 is selected from the group consisting of basic amino acids or nonpolar amino acids, including Arg, Lys, Val, Leu, Ala and Ile; P2 is selected from the group consisting of basic amino acids including Arg and Lys; and the numbers of M and X are respectively 0˜2; when N>2, A1 is Ala and the Ala residues are less than N?2.

Abstract: The present invention is related to a high salt-resistance antibacterial peptide by increasing width of side chain of amino acids and/or increasing length of side chain of amino acids in the antibacterial peptide; and a method for increasing salt-resistance of antibacterial peptide by increasing width of side chain and/or increasing length of side chain in the antibacterial peptide.

Abstract: The present invention provides an antimicrobial peptide, wherein the amino terminal and/or carboxyl terminal of the peptide is linked with at least one artificial bulkyl amino acid to increase the salt resistance and protease resistance of the antimicrobial peptide. The antimicrobial peptide of the invention has a high salt resistance, a high protease resistance, and a low hemolytic activity, simultaneously.

Abstract: Enclosed is an antagonist, which includes a peptide chain represented by an amino acid sequence. The amino acid sequence has a short sequence, C-X1X2X3X4X5-N, which is situated before and neighbored to the third cysteine (Cys, C) of the N-terminus, wherein X1 is an amino acid with aromatic ring, hydrophobic property or long chain, and X2, X3, X4 and X5 are glutamine (G), serine (S), alanine (A) and proline (P) respectively. In one embodiment, X1 is phenylalanine (F). The present antagonists can be used to inhibit or treat with the diseases caused by the activated cells expressing CXCR1 and/or CXCR2 receptor, for example, the acute or chronic inflammatory reaction induced with polymorphonuclear neutrophils (PMNs) expressing CXCR1 and/or CXCR2 receptor, and angiogenesis accompanied by tumor growth inhibition.

Abstract: The present invention is related to a high salt-resistance antibacterial peptide by increasing width of side chain of amino acids and/or increasing length of side chain of amino acids in the antibacterial peptide; and a method for increasing salt-resistance of antibacterial peptide by increasing width of side chain and/or increasing length of side chain in the antibacterial peptide.

Abstract: Enclosed is an antagonist, which includes a peptide chain represented by an amino acid sequence. The amino acid sequence has a short sequence, C-X1X2X3X4X5-N, which is situated before and neighbored to the third cysteine (Cys, C) of the N-terminus, wherein X1 is an amino acid with aromatic ring, hydrophobic property or long chain, and X2, X3, X4 and X5 are glutamine (G), serine (S), alanine (A) and proline (P) respectively. In one embodiment, X1 is phenylalanine (F). The present antagonists can be used to inhibit or treat with the diseases caused by the activated cells expressing CXCR1 and/or CXCR2 receptor, for example, the acute or chronic inflammatory reaction induced with polymorphonuclear neutrophils (PMNs) expressing CXCR1 and/or CXCR2 receptor, and angiogenesis accompanied by tumor growth inhibition.