Different chemical proteomic approaches to identify the targets of lapatinib

AbstractThe process of identifying the protein targets and off-targets of a biologically active compound is of great importance in modern drug discovery. Various chemical proteomics approaches have been established for this purpose. To compare the different approaches, and to understand which method...

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Main Authors: Tatjana Kovačević, Krunoslav Nujić, Mario Cindrić, Snježana Dragojević, Adrijana Vinter, Amela Hozić, Milan Mesić
Format: Article
Language:English
Published: Taylor & Francis Group 2023-12-01
Series:Journal of Enzyme Inhibition and Medicinal Chemistry
Subjects:
Online Access:https://www.tandfonline.com/doi/10.1080/14756366.2023.2183809
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author Tatjana Kovačević
Krunoslav Nujić
Mario Cindrić
Snježana Dragojević
Adrijana Vinter
Amela Hozić
Milan Mesić
author_facet Tatjana Kovačević
Krunoslav Nujić
Mario Cindrić
Snježana Dragojević
Adrijana Vinter
Amela Hozić
Milan Mesić
author_sort Tatjana Kovačević
collection DOAJ
description AbstractThe process of identifying the protein targets and off-targets of a biologically active compound is of great importance in modern drug discovery. Various chemical proteomics approaches have been established for this purpose. To compare the different approaches, and to understand which method would provide the best results, we have chosen the EGFR inhibitor lapatinib as an example molecule. Lapatinib derivatives were designed using linkers with motifs, including amino (amidation), alkyne (click chemistry) and the diazirine group (photo-affinity). These modified lapatinib analogues were validated for their ability to inhibit EGFR activity in vitro and were shown to pull down purified recombinant EGFR protein. In all of the approaches evaluated here, we identified EGFR as the main protein target from the lysate of immortalised cell line expressing EGFR, thus validating its potential use to identify unknown protein targets. Taken together, the results reported here give insight into the cellular activities of lapatinib.
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spelling doaj.art-0e9e0eecf46f428088a5bbe0540be1c82023-12-08T03:24:21ZengTaylor & Francis GroupJournal of Enzyme Inhibition and Medicinal Chemistry1475-63661475-63742023-12-0138110.1080/14756366.2023.2183809Different chemical proteomic approaches to identify the targets of lapatinibTatjana Kovačević0Krunoslav Nujić1Mario Cindrić2Snježana Dragojević3Adrijana Vinter4Amela Hozić5Milan Mesić6Selvita Ltd., Zagreb, CroatiaSelvita Ltd., Zagreb, CroatiaRuđer Bošković Institute, Zagreb, CroatiaSelvita Ltd., Zagreb, CroatiaSelvita Ltd., Zagreb, CroatiaRuđer Bošković Institute, Zagreb, CroatiaSelvita Ltd., Zagreb, CroatiaAbstractThe process of identifying the protein targets and off-targets of a biologically active compound is of great importance in modern drug discovery. Various chemical proteomics approaches have been established for this purpose. To compare the different approaches, and to understand which method would provide the best results, we have chosen the EGFR inhibitor lapatinib as an example molecule. Lapatinib derivatives were designed using linkers with motifs, including amino (amidation), alkyne (click chemistry) and the diazirine group (photo-affinity). These modified lapatinib analogues were validated for their ability to inhibit EGFR activity in vitro and were shown to pull down purified recombinant EGFR protein. In all of the approaches evaluated here, we identified EGFR as the main protein target from the lysate of immortalised cell line expressing EGFR, thus validating its potential use to identify unknown protein targets. Taken together, the results reported here give insight into the cellular activities of lapatinib.https://www.tandfonline.com/doi/10.1080/14756366.2023.2183809Chemical proteomicsaffinity chromatographydiazirinesphotoaffinity labellingEGFRlapatinib
spellingShingle Tatjana Kovačević
Krunoslav Nujić
Mario Cindrić
Snježana Dragojević
Adrijana Vinter
Amela Hozić
Milan Mesić
Different chemical proteomic approaches to identify the targets of lapatinib
Journal of Enzyme Inhibition and Medicinal Chemistry
Chemical proteomics
affinity chromatography
diazirines
photoaffinity labelling
EGFR
lapatinib
title Different chemical proteomic approaches to identify the targets of lapatinib
title_full Different chemical proteomic approaches to identify the targets of lapatinib
title_fullStr Different chemical proteomic approaches to identify the targets of lapatinib
title_full_unstemmed Different chemical proteomic approaches to identify the targets of lapatinib
title_short Different chemical proteomic approaches to identify the targets of lapatinib
title_sort different chemical proteomic approaches to identify the targets of lapatinib
topic Chemical proteomics
affinity chromatography
diazirines
photoaffinity labelling
EGFR
lapatinib
url https://www.tandfonline.com/doi/10.1080/14756366.2023.2183809
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