3). antigen and the major histocompatibility complex (MHC) present on the cell surface of APC cells, and the T-cell receptor (TCR) of T-cells. Signal 1 only induces a partial T-cell response. In addition, there is a second signal, signal 2, part of a co-stimulatory pathway for T-cells that is required for their full activation, which […]
Among surface nucleolin binding growth factors and proteins, midkine and pleiotrophin can transform cells, whereas on endothelial cells they exert both mitogenic and angiogenic effect [16]. nodules while displaying no toxicity to normal tissue. Moreover, microvessel density was significantly reduced in tumors recovered from HB-19 treated mice compared to corresponding controls. Studies on the melanoma-derived […]