This Week in PNAS

In PNAS this week, investigators in Germany and the UK show that translation of the proto-oncogene c-Myc is repressed by miR-24c following etoposide-induced DNA damage. "While miR-34c is induced by p53 following DNA damage, we show that in cells lacking p53 this is achieved by an alternative pathway which involves p38 MAPK signaling to MK2," they write, adding that their data reveal c-Myc as a major target of miR-34c.

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Jay Shendure and his colleagues have developed a new method to more comprehensively identify human cell types, the NY Times reports.

Researchers in the UK and Japan have shown that infertility in mice with three sex chromosomes can be overcome, according to the Guardian.

China is embracing preimplantation genetic diagnosis, Nature News reports. 

In PLOS this week: host genetic factors associated with cervical neoplasia progression, population patterns for an ancient flowering rainforest plant, and more.