• Nature article on EGFR blockade response in colorectal cancer corrected figure duplication. • Micrograph in Extended Data Fig. 8 mistakenly duplicated from Fig. 10, misrepresenting P-ERK levels. • Correct image shows MAP2K1-mutant PDX treated with MEK inhibitor AZD6244. • Original quantification and statistical analyses remain valid; conclusions unchanged. • Corrected figure provided in supplementary information; article cannot be updated directly. • Authors include Dario Ribero, Andrea Bertotti, Eniko Papp, Livio Trusolino, Victor E. Velculescu.

Article Summaries:

  • Correction to: Nature https://doi.org/10.1038/nature14969 Published online 30 September 2015 In Extended Data Fig. 8 of this article, a micrograph shown in the left column (panel AZD) was inadvertently duplicated during figure preparation. The intended image was meant to show phospho-ERK (P-ERK) levels in a MAP2K1-mutant patient-derived xenograft (PDX) exposed to the MEK inhibitor AZD6244 (AZD). However, this image was accidentally overlaid with a micrograph from Extended Data Fig. 10 (left column, panel PAN), which displays P-ERK levels in an EGFR-mutant PDX exposed to panitumumab (PAN). A co

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