Surprising signal to control male fertility

Signaling molecules of the Wnt family are ubiquitous in biology. From cnidaria to man, they are responsible for forming the basic shape of all organisms. Without Wnt, our body would not have a top or bottom, front or rear. ...

Hippo 'crosstalk' may be vital to tumor suppression

Think of a waterfall, and you might see why cell-signaling pathways are important to cancer research. As water cascades, it impacts everything downstream. And everything upstream affects the waterfall.

New jigsaw piece for the repair of DNA crosslinks

Environmental influences such as ionizing radiation, intense heat or various chemical substances damage the DNA constantly. Only thanks to efficient repair systems can mutations – changes in the DNA – largely be prevented. ...

One step closer to cell reprogramming

In 2012, John B. Gurdon and Shinya Yamakana were awarded the Nobel Prize in medicine for discovering that adult cells can be reprogrammed into pluripotent ones (iPS); the cells obtained are capable of behaving in a similar ...

Biologists zero in on role of plasticity in evolution

For more than a century, scientists have suggested that the best way to settle the debate about how phenotypic plasticity—the way an organism changes in response to environment—may be connected to evolution would be to ...

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