While the human immunodeficiency virus has been studied extensively, it appears that there are still new things to be learned. Myriad Genetics Inc. last week reported in Cell the discovery of a new cellular target for HIV. By disrupting the function of the tumor susceptibility gene 101 (Tsg101), researchers said they significantly reduced the release of HIV from infected cells.

"The object is to try to block the way HIV usurps the cell's own vesicular machinery, relocating and using it to pinch off the cell membrane," said Scott Morham, a scientist at MYGN (Salt Lake City, Utah) and co-author of the study.