Human chemokine Beta-10 polypeptides and DNA (RNA) encoding such chemokine polypeptides and a procedure for producing such polypeptides by recombinant techniques is disclosed. Also disclosed are methods for utilizing such chemokine polypeptides for the treatment of leukemia, tumors, chronic infections, autoimmune disease, fibrotic disorders, wound healing and psoriasis. Antagonists against such chemokine polypeptides and their use as a therapeutic to treat rheumatoid arthritis, autoimmune and chronic inflammatory and infective diseases, allergic reactions, prostaglandin-independent fever and bone marrow failure are also disclosed.

Pure peptide products, derived from either human glioma cell line U-105MG or human peripheral blood mononuclear leukocytes are provided; the products have a molecular mass of about 8,400 daltons, and the products exhibit optimal monocyte chemotactic activity at a concentration of 1 nM. Methods of treating infection and neoplasms in a human body with the peptide products are additionally provided, as well as pharmaceutical compositions for the peptide products.

Pure peptide products, derived from either human glioma cell line U-105MG or human peripheral blood mononuclear leukocytes are provided; the products have a molecular mass of about 8,400 daltons, and the products exhibit optimal monocyte chemotactic activity at a concentration of 1 nM. The cloning of full length cDNA for the peptide products is also provided, as well as recombinant methods for the production of monocyte chemoattractant products. Methods of treating infection and neoplasms in a human body with such peptides and monocyte chemoattractant products are additionally provided, as well as pharmaceutical compositions for the same.

Pure peptide products, derived from either human glioma cell line U-105MG or human peripheral blood mononuclear leukocytes are provided; the products have a molecular mass of about 8,400 daltons, and the products exhibit optimal monocyte chemotactic activity at a concentration of 1 nM. Methods of treating infection and neoplasms in a human body with such peptides and monocyte chemoattractant products are additionally provided, as well as pharmaceutical compositions for the same.

The present invention concerns a member of the human chemokine CC protein family. In particular isolated nucleic acid molecules are provided encoding the chemokine .beta.-15 protein. Chemokine .beta.-15 polypeptides are also provided. The invention further concerns diagnostic methods for detecting thymus disorders and therapeutic methods for modulating bone marrow cell proliferation and differentiation.