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IL-12 induces SDS-stable class II alphabeta dimers in murine dendritic cells
U Grohmann1, C Orabona, R Bianchi
1Department of Experimental Medicine, University of Perugia, Italy. grohmann@tin.it
We assessed the effect of rIL-12 on the expression of class II molecules and on the ratio between SDS-stable and unstable alphabeta dimers in dendritic cells. We found that in vitro exposure of the cells to IL-12 increased their surface expression of mature class II molecules, despite a marked decline in class II biosynthesis. This effect was accompanied by a striking increase in the overall proportion of SDS-stable heterodimers.
We assessed the effect of rIL-12 on the expression of class II molecules and on the ratio between SDS-stable and unstable alphabeta dimers in dendritic cells. We found that in vitro exposure of the cells to IL-12 increased their surface expression of mature class II molecules, despite a marked decline in class II biosynthesis. This effect was accompanied by a striking increase in the overall proportion of SDS-stable heterodimers.