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Trehalose 6,6'-dimycolate (TDM, cord factor) has frequently been used as an adjuvant to stimulate antibody production. Although it also induces cellular immunity, detailed studies about the underlying events do not exist. To determine the kinetics of TDM-specific changes promoting a T helper 1 (Th1) response, we injected mice with TDM or 2,3,6,6'-tetraacyl trehalose 2'-sulfate (SL, sulfolipid), another...
Using a model system of young, senescent and SV40-immortalized WI-38 fibroblasts, we identified two mRNAs upregulated in immortalized cells (imup-1, immortalization-upregulated protein 1, and imup-2). Compared to normal tissues, both genes were more frequently expressed in cancer cells. The open reading frame of imup-1 spans 321bp, coding for a 10.9kDa protein of 106 amino acids, while an insertion...
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