Previously, scientists in Britain have successfully created primitive sperm cells from bone marrow cells of men. Now the latest study, scientists returned to repeat the feat by making the sperm cells from female embryonic stem cells.
With the results of this study allow lesbian couples to have children one day, ie by dividing the gene into sperm created from bone marrow of one woman, who can then be used to fertilize the egg from her partner.
Men and women differ because of sex chromosomes. Male and female chromosome X, - XX female and XY male - but only men have the Y chromosome that carries several genes that are considered essential to make sperm, giving rise to skepticism in the presence of female stem cell news which can be used to make sperm.
In April 2010, Prof Karim Nayernia, a professor of Stem Cell Biology at Newcastle University, has made headlines by taking stem cells (stem cells) from adult male and make it develop into primitive sperm.
Now he has managed to repeat the feat by creating the primitive sperm cells with female embryonic stem cells in an unpublished work, as reported by the Telegraph, Tuesday (13/09/2011).
Prof Nayernia showed the potential of this method in 2006, when he used sperm derived from embryonic stem cells to fertilize the male mice to produce seven pups, six of them can live to adulthood. He is now optimistic about prospects for the study of sperm from female embria this.
"I think, in principle, it is scientifically possible," said Prof Karim Nayernia, as reported by New Scientist.
He said had received approval from the university's ethical to use stem cells from female bone marrow to start the experiment make sperm from female embryos.
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