1.   Genentech, of South San Francisco, California, copied the entire protein molecule using ovarian cells in Chinese hamsters.

2.   He said he would focus on investigating ovarian cell growth.

3.   The researchers then grafted human ovarian cells under the skin of the test mice, where the cells behaved just as they would if they were inside a woman.

4.   The researchers had earlier found that the death of the ovarian cells involved a series of chemicals, including ceramide.