New research shows that a protein produced by a cancer-causing virus influences a key signaling pathway in the immune cells that the virus infects. This stimulates the cells to divide, helping the virus spread through the body. The study, led by researchers at Ohio State University, examined the human T lymphotropic virus type 1 (HTLV-1) and a protein that it produces called p12. The research is published in the April issue of the journal AIDS Research and Human Retroviruses.