A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon Cancer

Antibody-drug conjugates (ADCs) have demonstrated a great therapeutic potential against cancer due to their target specificity and cytotoxicity. To exert a maximum therapeutic effect on cancerous cells, we have conjugated two different payloads to different amino acids, cysteines (cys) and lysines (...

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Main Authors: Candice Maria Mckertish, Veysel Kayser
Format: Article
Language:English
Published: MDPI AG 2023-07-01
Series:Pharmaceutics
Subjects:
Online Access:https://www.mdpi.com/1999-4923/15/8/2020
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author Candice Maria Mckertish
Veysel Kayser
author_facet Candice Maria Mckertish
Veysel Kayser
author_sort Candice Maria Mckertish
collection DOAJ
description Antibody-drug conjugates (ADCs) have demonstrated a great therapeutic potential against cancer due to their target specificity and cytotoxicity. To exert a maximum therapeutic effect on cancerous cells, we have conjugated two different payloads to different amino acids, cysteines (cys) and lysines (lys), on trastuzumab, which is a humanised anti-HER2 monoclonal antibody. First, trastuzumab was conjugated with monomethyl auristatin E (MMAE), an antimitotic agent, through a cleavable linker (Val-Cit) to prepare ADC (Tmab-VcMMAE). Then, the ADC (Tmab-VcMMAE) was conjugated with a second antimitotic agent, Mertansine (DM1), via a non-cleavable linker Succinimidyl-4-(<i>N</i>-maleimidomethyl)cyclohexane-1-carboxylate (SMCC) to form a dual conjugate (Tmab-VcMMAE-SMCC-DM1). Our results indicated that the dual-payload conjugate, Tmab-VcMMAE-SMCC-DM1, had a synergistic and superior cytotoxic effect compared to trastuzumab alone. Ultimately employing a dual conjugation approach has the potential to overcome treatment-resistance and tumour recurrences and could pave the way to employ other payloads to construct dual (or multiple) payload complexes.
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spelling doaj.art-f3a82f403e674b09bff1a6b125fb87652023-11-19T02:35:28ZengMDPI AGPharmaceutics1999-49232023-07-01158202010.3390/pharmaceutics15082020A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon CancerCandice Maria Mckertish0Veysel Kayser1Sydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, AustraliaSydney School of Pharmacy, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, AustraliaAntibody-drug conjugates (ADCs) have demonstrated a great therapeutic potential against cancer due to their target specificity and cytotoxicity. To exert a maximum therapeutic effect on cancerous cells, we have conjugated two different payloads to different amino acids, cysteines (cys) and lysines (lys), on trastuzumab, which is a humanised anti-HER2 monoclonal antibody. First, trastuzumab was conjugated with monomethyl auristatin E (MMAE), an antimitotic agent, through a cleavable linker (Val-Cit) to prepare ADC (Tmab-VcMMAE). Then, the ADC (Tmab-VcMMAE) was conjugated with a second antimitotic agent, Mertansine (DM1), via a non-cleavable linker Succinimidyl-4-(<i>N</i>-maleimidomethyl)cyclohexane-1-carboxylate (SMCC) to form a dual conjugate (Tmab-VcMMAE-SMCC-DM1). Our results indicated that the dual-payload conjugate, Tmab-VcMMAE-SMCC-DM1, had a synergistic and superior cytotoxic effect compared to trastuzumab alone. Ultimately employing a dual conjugation approach has the potential to overcome treatment-resistance and tumour recurrences and could pave the way to employ other payloads to construct dual (or multiple) payload complexes.https://www.mdpi.com/1999-4923/15/8/2020antibody drug conjugatesADCsantimitoticmicrotubule polymerizationVcMMAESMCC-DM1
spellingShingle Candice Maria Mckertish
Veysel Kayser
A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon Cancer
Pharmaceutics
antibody drug conjugates
ADCs
antimitotic
microtubule polymerization
VcMMAE
SMCC-DM1
title A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon Cancer
title_full A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon Cancer
title_fullStr A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon Cancer
title_full_unstemmed A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon Cancer
title_short A Novel Dual-Payload ADC for the Treatment of HER2+ Breast and Colon Cancer
title_sort novel dual payload adc for the treatment of her2 breast and colon cancer
topic antibody drug conjugates
ADCs
antimitotic
microtubule polymerization
VcMMAE
SMCC-DM1
url https://www.mdpi.com/1999-4923/15/8/2020
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