CYTOKINE - Small, non- immunoglobulin proteins produced by monocytes and lymphocytes that serve as intercellular communicators after binding to specific receptors on the responding cells. Reverse Phase Chromatography - A chromatographical separation method primarily based on a column stationary part coated to provide non- polar hydrophobic surface. DuPont chromatography resins shortly and effectively elute the salts and premium amino acids supplier non-anion compounds whereas retaining the anionic compounds. CHEMOTAXIS - Net oriented movement in a focus gradient of sure compounds.