Rath N C, Oronsky A L, Kerwar S S
Department of Inflammation and Immunology, American Cyanamid Company, Lederle Laboratories Division, Pearl River, New York 10965.
Clin Immunol Immunopathol. 1988 Apr;47(1):39-46. doi: 10.1016/0090-1229(88)90143-2.
Chondrocytes prepared from the articular cartilage of young rats synthesize and secrete an interleukin-1-like activity into the medium. The physical and biochemical properties of this IL-1-like activity are similar to macrophage-derived IL-1. Immunological studies suggest that this activity is related to IL-1 alpha. Isolated chondrocytes and those grown in culture can express Ia.