Xiamen Amoytop Biotech Co., Ltd. - Company profile and overview of discovery, development and manufacture of recombinant proteins, such as interleukin 11, granulocyte macrophage and colony stimulating factors in Xiamen, China. ProSpec-Tany Technogene Ltd. - Offers E.coli-derived recombinant human glycoprotein hormones, chemokines, growth factors, viral antigens, monoclonal and polyclonal antibodies, from Israel. Chemocentryx - Developing medicines for autoimmune and inflammatory disorders, cancer, infectious disease and transplant rejection based on the chemokine system. Includes brief overview of chemokines. Based in San Carlos, CA. BioLegend - Company offering comprehensive panel of reagents for flow cytometry, ELISA, immunoprecipitation, Western blotting. Products include mouse, rat and human cytokines and chemokines, and their antibodies. On-line ordering, and contacts in San Diego, California. CytoShop - Company focused on the discovering and marketing of cytokines, chemokines, growth factors, neurotrophins and other immunochemicals for research purposes. On-line ordering and contacts in Rehovot, Israel. Regeneron Pharmaceuticals, Inc. - Biopharmaceutical company involved in discovery and development of therapeutic medicines for the treatment of rheumatoid arthritis, cancer, allergies as well as neurodegenerative diseases and peripheral neuropathies. Contacts in Tarrytown, NY. Patricell Ltd. - Offers animal and normal human cell systems for in vitro research, growth factors, immunology reagents, mono- and polyclonal antibodies. Contacts in Surrey, United Kingdom. Sigma-Aldrich: Cytokines and Growth Factors - Offering biochemical and organic chemicals, for use in scientific and genomic research, biotechnology and pharmaceutical development. Includes MSDS, and online ordering. DIAsource Immunoassays - Company specialized in the development and commercialization of RIA, IRMA and ELISA immunoassays for accurate diagnosis of endocrine disorders. Epoch Life Science Inc. - Company focused on the discovering, developing and manufacturing growth factors, cytokines and recombinant proteins for cell culture research both in vitro and in vivo. Online, phone or fax ordering; e-mail and telephone contacts.