Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand binding

Abstract Signaling bias is the ability of a receptor to differentially activate downstream signaling pathways in response to different ligands. Bias investigations have been hindered by inconsistent results in different cellular contexts. Here we introduce a methodology to identify and quantify bias...

Full description

Bibliographic Details
Main Authors: Daniel Wirth, Ece Özdemir, Kalina Hristova
Format: Article
Language:English
Published: Nature Portfolio 2023-11-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-42926-8
_version_ 1797452133079973888
author Daniel Wirth
Ece Özdemir
Kalina Hristova
author_facet Daniel Wirth
Ece Özdemir
Kalina Hristova
author_sort Daniel Wirth
collection DOAJ
description Abstract Signaling bias is the ability of a receptor to differentially activate downstream signaling pathways in response to different ligands. Bias investigations have been hindered by inconsistent results in different cellular contexts. Here we introduce a methodology to identify and quantify bias in signal transduction across the plasma membrane without contributions from feedback loops and system bias. We apply the methodology to quantify phosphorylation efficiencies and determine absolute bias coefficients. We show that the signaling of epidermal growth factor receptor (EGFR) to EGF and TGFα is biased towards Y1068 and against Y1173 phosphorylation, but has no bias for epiregulin. We further show that the L834R mutation found in non-small-cell lung cancer induces signaling bias as it switches the preferences to Y1173 phosphorylation. The knowledge gained here challenges the current understanding of EGFR signaling in health and disease and opens avenues for the exploration of biased inhibitors as anti-cancer therapies.
first_indexed 2024-03-09T15:04:22Z
format Article
id doaj.art-d4339b3021404b07876745f1d1736eaf
institution Directory Open Access Journal
issn 2041-1723
language English
last_indexed 2024-03-09T15:04:22Z
publishDate 2023-11-01
publisher Nature Portfolio
record_format Article
series Nature Communications
spelling doaj.art-d4339b3021404b07876745f1d1736eaf2023-11-26T13:45:13ZengNature PortfolioNature Communications2041-17232023-11-0114111310.1038/s41467-023-42926-8Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand bindingDaniel Wirth0Ece Özdemir1Kalina Hristova2Department of Materials Science and Engineering and Institute for NanoBioTechnology, Johns Hopkins UniversityDepartment of Materials Science and Engineering and Institute for NanoBioTechnology, Johns Hopkins UniversityDepartment of Materials Science and Engineering and Institute for NanoBioTechnology, Johns Hopkins UniversityAbstract Signaling bias is the ability of a receptor to differentially activate downstream signaling pathways in response to different ligands. Bias investigations have been hindered by inconsistent results in different cellular contexts. Here we introduce a methodology to identify and quantify bias in signal transduction across the plasma membrane without contributions from feedback loops and system bias. We apply the methodology to quantify phosphorylation efficiencies and determine absolute bias coefficients. We show that the signaling of epidermal growth factor receptor (EGFR) to EGF and TGFα is biased towards Y1068 and against Y1173 phosphorylation, but has no bias for epiregulin. We further show that the L834R mutation found in non-small-cell lung cancer induces signaling bias as it switches the preferences to Y1173 phosphorylation. The knowledge gained here challenges the current understanding of EGFR signaling in health and disease and opens avenues for the exploration of biased inhibitors as anti-cancer therapies.https://doi.org/10.1038/s41467-023-42926-8
spellingShingle Daniel Wirth
Ece Özdemir
Kalina Hristova
Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand binding
Nature Communications
title Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand binding
title_full Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand binding
title_fullStr Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand binding
title_full_unstemmed Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand binding
title_short Quantification of ligand and mutation-induced bias in EGFR phosphorylation in direct response to ligand binding
title_sort quantification of ligand and mutation induced bias in egfr phosphorylation in direct response to ligand binding
url https://doi.org/10.1038/s41467-023-42926-8
work_keys_str_mv AT danielwirth quantificationofligandandmutationinducedbiasinegfrphosphorylationindirectresponsetoligandbinding
AT eceozdemir quantificationofligandandmutationinducedbiasinegfrphosphorylationindirectresponsetoligandbinding
AT kalinahristova quantificationofligandandmutationinducedbiasinegfrphosphorylationindirectresponsetoligandbinding