Use of a CXCR4 antagonistic peptide and an immune-check point regulator in the treatment of cancer is provided. Accordingly there is provided a method of treating cancer in a subject in need thereof, the method comprising administering to the subject a therapeutically effective amount of a peptide having an amino acid sequence as set forth in SEQ ID NO: 1 or an analog or derivative thereof; and a therapeutically effective amount of a PD1 antagonist, a PDL-1 antagonist, a CTLA-4 antagonist, a LAG-3 antagonist, a TIM-3 antagonist, a KIR antagonist, an IDO antagonist, an OX40 agonist, a CD137 agonist, a CD27 agonist, a CD40 agonist, a GITR agonist, a CD28 agonist or an ICOS agonist, thereby treating the cancer in the subject. Also provided are pharmaceutical compositions and articles of manufacture.

Use of a CXCR4 antagonistic peptide and an immune-check point regulator in the treatment of cancer is provided. Accordingly there is provided a method of treating cancer in a subject in need thereof, the method comprising administering to the subject a therapeutically effective amount of a peptide having an amino acid sequence as set forth in SEQ ID NO: 1 or an analog or derivative thereof; and a therapeutically effective amount of a PD1 antagonist, a PDL-1 antagonist, a CTLA-4 antagonist, a LAG-3 antagonist, a TIM-3 antagonist, a KIR antagonist, an IDO antagonist, an OX40 agonist, a CD137 agonist, a CD27 agonist, a CD40 agonist, a GITR agonist, a CD28 agonist or an ICOS agonist, thereby treating the cancer in the subject. Also provided are pharmaceutical compositions and articles of manufacture.

The present invention provides a method for treating a human patient with a pathology by administering to the subject an effective amount of an agent selected from the group of: native full-length CCN3 proteins; analog CCN3 full-length proteins with native cysteine residues substituted by a replacement amino acid; CCNp native peptide fragments having from about 12 to about 20 amino acids; analog CCNp peptide fragments with native cysteine residues substituted with a replacement amino acid; and combinations thereof.

The present invention provides a method for treating a human patient with a pathology by administering to the subject an effective amount of an agent selected from the group of: native full-length CCN3 proteins; analog CCN3 full-length proteins with native cysteine residues substituted by a replacement amino acid; CCNp native peptide fragments having from about 12 to about 20 amino acids; analog CCNp peptide fragments with native cysteine residues substituted with a replacement amino acid; and combinations thereof.

Disclosed herein is a use of an adenosine triphosphate (ATP) binding cassette (ABC) transporter peptide inhibitor HX-12C. This disclosure also discloses a method of treating a tumor with multidrug resistance mediated by the ABC transporter using a combination of the peptide HX-12C shown in SEQ ID NO: 1 and an ABC transporter substrate chemotherapeutic drug. Moreover, this disclosure also provides a composition for treating a tumor with multidrug resistance mediated by an ABC transporter, consisting of the peptide HX-12C shown in SEQ ID NO: 1 and an ABC transporter substrate chemotherapeutic drug.

Disclosed herein is a use of an adenosine triphosphate (ATP) binding cassette (ABC) transporter peptide inhibitor HX-12C. This disclosure also discloses a method of treating a tumor with multidrug resistance mediated by the ABC transporter using a combination of the peptide HX-12C shown in SEQ ID NO: 1 and an ABC transporter substrate chemotherapeutic drug. Moreover, this disclosure also provides a composition for treating a tumor with multidrug resistance mediated by an ABC transporter, consisting of the peptide HX-12C shown in SEQ ID NO: 1 and an ABC transporter substrate chemotherapeutic drug.

Disclosed herein is a use of an adenosine triphosphate (ATP) binding cassette (ABC) transporter peptide inhibitor HX-12C. This disclosure also discloses a method of treating a tumor with multidrug resistance mediated by the ABC transporter using a combination of the peptide HX-12C shown in SEQ ID NO: 1 and an ABC transporter substrate chemotherapeutic drug. Moreover, this disclosure also provides a composition for treating a tumor with multidrug resistance mediated by an ABC transporter, consisting of the peptide HX-12C shown in SEQ ID NO: 1 and an ABC transporter substrate chemotherapeutic drug.

The present invention relates to the use of at least one peptide having sequence VRLIVAVRIWRR, VRLIVAVRIKRR, VRLIVKVRIWRR, VRLIVKVRIKRR (SEQ ID NO: 1, SEQ ID NO 2, SEQ ID NO 3, SEQ ID NO 4), as a bactericidal antimicrobial agent against Listeria monocytogenes.

The present invention relates to the use of at least one peptide having sequence VRLIVAVRIWRR, VRLIVAVRIKRR, VRLIVKVRIWRR, VRLIVKVRIKRR (SEQ ID NO: 1, SEQ ID NO 2, SEQ ID NO 3, SEQ ID NO 4), as a bactericidal antimicrobial agent against Listeria monocytogenes.

The present invention is directed to isolated peptides, compositions comprising same and methods of use thereof for treating tumors infiltrated with macrophages, such as glioblastomas.