Extensive rewiring of the EGFR network in colorectal cancer cells expressing transforming levels of KRASG13D

Susan A. Kennedy, Mohamed Ali Jarboui, Sriganesh Srihari, Cinzia Raso, Kenneth Bryan, Layal Dernayka, Theodosia Charitou, Manuel Bernal-Llinares, Carlos Herrera-Montavez, Aleksandar Krstic, David Matallanas, Max Kotlyar, Igor Jurisica, Jasna Curak, Victoria Wong, Igor Stagljar, Thierry LeBihan, Lisa Imrie, Priyanka Pillai, Miriam A. LynnErik Fasterius, Cristina Al-Khalili Szigyarto, James Breen, Christina Kiel, Luis Serrano, Nora Rauch, Oleksii Rukhlenko, Boris N. Kholodenko, Luis F. Iglesias-Martinez, Colm J. Ryan, Ruth Pilkington, Patrizia Cammareri, Owen Sansom, Steven Shave, Manfred Auer, Nicola Horn, Franziska Klose, Marius Ueffing, Karsten Boldt, David J. Lynn, Walter Kolch

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Protein-protein-interaction networks (PPINs) organize fundamental biological processes, but how oncogenic mutations impact these interactions and their functions at a network-level scale is poorly understood. Here, we analyze how a common oncogenic KRAS mutation (KRASG13D) affects PPIN structure and function of the Epidermal Growth Factor Receptor (EGFR) network in colorectal cancer (CRC) cells. Mapping >6000 PPIs shows that this network is extensively rewired in cells expressing transforming levels of KRASG13D (mtKRAS). The factors driving PPIN rewiring are multifactorial including changes in protein expression and phosphorylation. Mathematical modelling also suggests that the binding dynamics of low and high affinity KRAS interactors contribute to rewiring. PPIN rewiring substantially alters the composition of protein complexes, signal flow, transcriptional regulation, and cellular phenotype. These changes are validated by targeted and global experimental analysis. Importantly, genetic alterations in the most extensively rewired PPIN nodes occur frequently in CRC and are prognostic of poor patient outcomes.

Original languageEnglish
Article number499
Number of pages14
JournalNature Communications
Publication statusPublished - 24 Jan 2020

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Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing,adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.


  • Protein-protein-interaction networks
  • oncogenic mutations
  • Epidermal growth factor receptor network
  • colorectal cancer cells
  • Phosphorylation


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