Journal of Experimental Medicine, Vol 148, 261-275, Copyright © 1978 by Rockefeller University Press
Mononuclear phagocytes from carrageenan-induce granulomas. Isolation, cultivation, and characterization
RJ Bonney, I Gery, TY Lin, MF Meyenhofer, W Acevedo and P Davies
Stable cultures of mononuclear phagocytes from carrageenan-induced
granulomas in mice have been established after enzymatic dispersion of
these lesions. The cells can be maintained for up to 3 wk without division
in serum-free media. The mononuclear phagocytes were identified by several
criteria. The cells are adherent, phagocytic, contain lysosomal acid
hydrolases at high specific activities, secrete lysozyme, and bind soluble
aggregates of IgG. The activities of 5'- nucleotidase and leucine
aminopeptidase in the cultured granuloma cells showed that they resembled
macrophages from thioglycollate-stimulated mice but not unstimulated
macrophages in these respects. Supernates from the cultured granuloma cells
contain factor(s) which induce the proliferation of thymocytes; the release
of such factors by the cells is stimulated by lipopolysaccharide.