This Week in PNAS | GenomeWeb

This Week in PNAS

In this week's PNAS Early Edition, researchers at the Sanford-Burnham Medical Research Institute, along with their collaborators at Columbia University, show that deletion of DDB1 "abrogates the self-renewing capacity of hepatocytes, resulting in compensatory proliferation of DDB1-expressing hepatocytes." In addition, the team shows that "constitutive stimulation of this regeneration process leads to development of hepatocellular carcinoma, which surprisingly contains no disruption of the DDB1 gene." The authors suggest this indicates a "cell-non-autonomous role of DDB1 inactivatio

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The Wall Street Journal reports that National Institutes of Health Director Francis Collins' response to contamination concerns at the agency might have delayed care.

The final revision of the Common Rule doesn't include the proposed change requiring consent for leftover biospecimens.

The first Reproducibility Project: Cancer Biology papers show mixed results.

In Nature this week: mobile phone-based targeted DNA sequencing, and more.