Protecting cells from their neighbours
Almost all organisms evolve from a single cell, a fertilised egg. In the first hours after fertilisation, the fate of its future development is determined. It is dictated by the separation of cells that will become sperm and ovules - germ cells-, from the remaining cells, which will be responsible for forming the body - organs and tissues -, and that comprise the somatic cell line. Scientists at the Institute for Research in Biomedicine (IRB Barcelona), headed by Jordi Casanova, research professor at CSIC, have identified the mechanism that protects somatic cells against the behaviour of germ cells. When this mechanism fails, the embryo dies. Made in the fruit fly Drosophila melanogaster, this finding could be universal. This research is published today in the advanced online edition of EMBO Reports...