Tumor suppressor regulates reproduction?

The tumor suppressor linkurl:p53;http://www.the-scientist.com/news/display/43281/ is a crucial player in the successful impregnation of mice, and plays a surprising new role in reproduction, according to a study published today in Nature. Arnold Levine's group at the University of Medicine and Dentistry, NJ, showed that p53 linkurl:regulates;http://www.the-scientist.com/news/display/50738/ a cytokine which is the most highly expressed at the onset of embryo implantation -- in fact, implantation