PMID- 28988771 OWN - NLM STAT- MEDLINE DCOM- 20171101 LR - 20181202 IS - 1097-4172 (Electronic) IS - 0092-8674 (Print) IS - 0092-8674 (Linking) VI - 171 IP - 3 DP - 2017 Oct 19 TI - EGFR Ligands Differentially Stabilize Receptor Dimers to Specify Signaling Kinetics. PG - 683-695.e18 LID - S0092-8674(17)31066-8 [pii] LID - 10.1016/j.cell.2017.09.017 [doi] AB - Epidermal growth factor receptor (EGFR) regulates many crucial cellular programs, with seven different activating ligands shaping cell signaling in distinct ways. Using crystallography and other approaches, we show how the EGFR ligands epiregulin (EREG) and epigen (EPGN) stabilize different dimeric conformations of the EGFR extracellular region. As a consequence, EREG or EPGN induce less stable EGFR dimers than EGF-making them partial agonists of EGFR dimerization. Unexpectedly, this weakened dimerization elicits more sustained EGFR signaling than seen with EGF, provoking responses in breast cancer cells associated with differentiation rather than proliferation. Our results reveal how responses to different EGFR ligands are defined by receptor dimerization strength and signaling dynamics. These findings have broad implications for understanding receptor tyrosine kinase (RTK) signaling specificity. Our results also suggest parallels between partial and/or biased agonism in RTKs and G-protein-coupled receptors, as well as new therapeutic opportunities for correcting RTK signaling output. CI - Copyright (c) 2017 Elsevier Inc. All rights reserved. FAU - Freed, Daniel M AU - Freed DM AD - Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA. FAU - Bessman, Nicholas J AU - Bessman NJ AD - Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104-6059, USA. FAU - Kiyatkin, Anatoly AU - Kiyatkin A AD - Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA. FAU - Salazar-Cavazos, Emanuel AU - Salazar-Cavazos E AD - Department of Pathology and UNM Comprehensive Cancer Center, University of New Mexico Health Science Center, Albuquerque, NM 87131, USA. FAU - Byrne, Patrick O AU - Byrne PO AD - Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712, USA. FAU - Moore, Jason O AU - Moore JO AD - Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104-6059, USA. FAU - Valley, Christopher C AU - Valley CC AD - Department of Pathology and UNM Comprehensive Cancer Center, University of New Mexico Health Science Center, Albuquerque, NM 87131, USA. FAU - Ferguson, Kathryn M AU - Ferguson KM AD - Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA. FAU - Leahy, Daniel J AU - Leahy DJ AD - Department of Molecular Biosciences, University of Texas at Austin, Austin, TX 78712, USA. FAU - Lidke, Diane S AU - Lidke DS AD - Department of Pathology and UNM Comprehensive Cancer Center, University of New Mexico Health Science Center, Albuquerque, NM 87131, USA. FAU - Lemmon, Mark A AU - Lemmon MA AD - Department of Pharmacology, Yale University School of Medicine, New Haven, CT 06520, USA; Yale Cancer Biology Institute, Yale University, West Haven, CT 06516, USA; Department of Biochemistry and Biophysics, University of Pennsylvania Perelman School of Medicine, Philadelphia, PA 19104-6059, USA. Electronic address: mark.lemmon@yale.edu. LA - eng GR - P30 CA118100/CA/NCI NIH HHS/United States GR - U54 CA209992/CA/NCI NIH HHS/United States GR - R01 GM099092/GM/NIGMS NIH HHS/United States GR - R01 GM099321/GM/NIGMS NIH HHS/United States GR - R01 CA112552/CA/NCI NIH HHS/United States GR - U54 CA193417/CA/NCI NIH HHS/United States GR - R01 CA198164/CA/NCI NIH HHS/United States GR - F32 GM109688/GM/NIGMS NIH HHS/United States GR - P50 GM085273/GM/NIGMS NIH HHS/United States GR - T32 GM008275/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20171005 PL - United States TA - Cell JT - Cell JID - 0413066 RN - 0 (EPGN protein, human) RN - 0 (EREG protein, human) RN - 0 (Epigen) RN - 0 (Epiregulin) RN - 0 (Ligands) RN - EC 2.7.10.1 (EGFR protein, human) RN - EC 2.7.10.1 (ErbB Receptors) SB - IM MH - Crystallography, X-Ray MH - Epigen/*chemistry/metabolism MH - Epiregulin/*chemistry/metabolism MH - ErbB Receptors/*chemistry/*metabolism MH - Fluorescence Resonance Energy Transfer MH - Humans MH - Kinetics MH - Ligands MH - Models, Molecular MH - Protein Multimerization PMC - PMC5650921 MID - NIHMS906573 OTO - NOTNLM OT - biased agonist OT - cell fate decision OT - crystallography OT - dimerization OT - growth factor OT - kinetic proofreading OT - negative feedback OT - phosphatase OT - receptor tyrosine kinase OT - signaling specificity EDAT- 2017/10/11 06:00 MHDA- 2017/11/02 06:00 PMCR- 2018/10/19 CRDT- 2017/10/10 06:00 PHST- 2017/05/06 00:00 [received] PHST- 2017/07/31 00:00 [revised] PHST- 2017/09/12 00:00 [accepted] PHST- 2017/10/11 06:00 [pubmed] PHST- 2017/11/02 06:00 [medline] PHST- 2017/10/10 06:00 [entrez] PHST- 2018/10/19 00:00 [pmc-release] AID - S0092-8674(17)31066-8 [pii] AID - 10.1016/j.cell.2017.09.017 [doi] PST - ppublish SO - Cell. 2017 Oct 19;171(3):683-695.e18. doi: 10.1016/j.cell.2017.09.017. Epub 2017 Oct 5.