This Week in PNAS

In this week's PNAS Early Edition, investigators at the University of Edinburgh in the UK show that "transcriptionally repressed genes become aberrantly methylated and distinguish tumors of different lineages in breast cancer." More specifically, in its investigation of promoter methylation in 19 breast cancer cell lines and 47 primary breast tumors, the team found "120 genes that were significantly repressed in association with methylation," which "allowed the unsupervised segregation of cell lines into epithelial and mesenchymal lineages." The Edinburgh team says that aberrant

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The New York Times and ProPublica look into the close relationship between a startup and Memorial Sloan Kettering Cancer Center.

Yahoo News reports millions of dollars are being transferred from NIH, CDC, and other programs to pay for the housing of detained undocumented immigrant children.

In Science this week: in vitro generation of human reproductive cells, and more.

Researchers gave a handful of octopuses MDMA to find that they too act more social on the drug, Gizmodo reports.