Fig. 1.Expression of MRJ-L and MRJ-S in cell lines and donor PBMCs. (a) Western blot analysis of endogenous MRJ-L and MRJ-S in various cells. Significant amounts of MRJ-L and MRJ-S are
seen in U937, PMA-stimulated U937, Jurkat and PHA-stimulated Jurkat cells (lanes 1–4). PBL (peripheral blood lymphocytes) and PHA-stimulated PBLs from donor 1 express similar
amounts of MRJ-L and MRJ-S (lanes 6–7). Note, however, that monocytes (lane 5) express only MRJ-S, but no MRJ-L. GAPDH was used as a loading control. (b) Western blotting of
MRJ-L and MRJ-S in cells from healthy donors and cell lines. (c) MRJ-L expression in macrophages from 31 HIV-1-infected patients and 27 healthy donors. Significantly higher levels of
MRJ-L are expressed in macrophages from HIV-1-infected individuals than uninfected controls. Average ± SD is shown. p = 0.009 by the Mann–Whitney Rank Sum test. (d) HIV-1 infection does not alter the expression level of MRJ-L in PBL and macrophages from donor 9 (low MRJ-L) or donor 11 (high MRJ-L). Cells were harvested at day 8 post-HIV-1 infection. Expression of GAPDH was compared for normalization.