A Cancer Cell paper that caused a flurry of activity on the website PubPeer is under investigation, after the last author announced on the site that he’d requested a correction from the journal. A spokesman from Cancer Cell confirmed to us the paper is under investigation:We are aware of the concerns raised regarding the Binda et al. paper published by Cancer Cell in 2012, and they are currently under investigation by the journal. The article, titled “The EphA2 Receptor Drives Self-Renewal and Tumorigenicity in Stem-like Tumor-Propagating Cells from Human Glioblastomas,” ran in the December 2012 issue of Cancer Cell. Peer 1 asked when Vescovi sent the correction request to Cancer Cell — before or after the PubPeer comment stream.