HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR Inhibitors

Epidermal growth factor receptor (EGFR) is one of the anticancer drug targets for certain malignancies, including nonsmall cell lung cancer (NSCLC), colorectal cancer (CRC), and head and neck squamous cell carcinoma. However, the grave issue of drug resistance through diverse mechanisms persists, in...

Full description

Bibliographic Details
Main Author: Kimio Yonesaka
Format: Article
Language:English
Published: MDPI AG 2021-03-01
Series:Cancers
Subjects:
Online Access:https://www.mdpi.com/2072-6694/13/5/1047
_version_ 1797416039438352384
author Kimio Yonesaka
author_facet Kimio Yonesaka
author_sort Kimio Yonesaka
collection DOAJ
description Epidermal growth factor receptor (EGFR) is one of the anticancer drug targets for certain malignancies, including nonsmall cell lung cancer (NSCLC), colorectal cancer (CRC), and head and neck squamous cell carcinoma. However, the grave issue of drug resistance through diverse mechanisms persists, including secondary EGFR-mutation and its downstream RAS/RAF mutation. Since the discovery of the role of human epidermal growth factor receptor 2 (HER2) and HER3 in drug resistance, HER2- or HER3-targeting treatment strategies using monoclonal antibodies have been intensively examined and have demonstrated impressive responsiveness and limitations. Finally, an innovative targeted therapy called antibody drug conjugates (ADC) has provided a solution to overcome this resistance. Specifically, a new cleavable linker-payload system enables stable drug delivery to cancer cells, causing selective destruction. HER2-targeting ADC trastuzumab deruxtecan demonstrated promising responsiveness in patients with HER2-positive CRC, in a phase 2 clinical trial (objective response rate = 45.3%). Furthermore, HER3-targeting patritumab deruxtecan, another ADC, exhibited impressive tumor shrinkage in pretreated patients with EGFR-mutated NSCLC, in a phase 1 clinical trial. This manuscript presents an overview of the accumulated evidence on HER2- and HER3-targeting therapy, especially ADCs, and discussion of remaining issues for further improving these treatments in cancers resistant to EGFR inhibitors.
first_indexed 2024-03-09T05:58:01Z
format Article
id doaj.art-2a5fb476dc4c47a0ab67943c97f89da7
institution Directory Open Access Journal
issn 2072-6694
language English
last_indexed 2024-03-09T05:58:01Z
publishDate 2021-03-01
publisher MDPI AG
record_format Article
series Cancers
spelling doaj.art-2a5fb476dc4c47a0ab67943c97f89da72023-12-03T12:11:32ZengMDPI AGCancers2072-66942021-03-01135104710.3390/cancers13051047HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR InhibitorsKimio Yonesaka0Department of Medical Oncology, Kindai University Faculty of Medicine, 377-2 Ohno-Higashi Osaka-Sayamashi, Osaka 589-8511, JapanEpidermal growth factor receptor (EGFR) is one of the anticancer drug targets for certain malignancies, including nonsmall cell lung cancer (NSCLC), colorectal cancer (CRC), and head and neck squamous cell carcinoma. However, the grave issue of drug resistance through diverse mechanisms persists, including secondary EGFR-mutation and its downstream RAS/RAF mutation. Since the discovery of the role of human epidermal growth factor receptor 2 (HER2) and HER3 in drug resistance, HER2- or HER3-targeting treatment strategies using monoclonal antibodies have been intensively examined and have demonstrated impressive responsiveness and limitations. Finally, an innovative targeted therapy called antibody drug conjugates (ADC) has provided a solution to overcome this resistance. Specifically, a new cleavable linker-payload system enables stable drug delivery to cancer cells, causing selective destruction. HER2-targeting ADC trastuzumab deruxtecan demonstrated promising responsiveness in patients with HER2-positive CRC, in a phase 2 clinical trial (objective response rate = 45.3%). Furthermore, HER3-targeting patritumab deruxtecan, another ADC, exhibited impressive tumor shrinkage in pretreated patients with EGFR-mutated NSCLC, in a phase 1 clinical trial. This manuscript presents an overview of the accumulated evidence on HER2- and HER3-targeting therapy, especially ADCs, and discussion of remaining issues for further improving these treatments in cancers resistant to EGFR inhibitors.https://www.mdpi.com/2072-6694/13/5/1047EGFRHER2HER3ADCtrastuzumab deruxtecan (T-DXd)patritumab deruxtecan
spellingShingle Kimio Yonesaka
HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR Inhibitors
Cancers
EGFR
HER2
HER3
ADC
trastuzumab deruxtecan (T-DXd)
patritumab deruxtecan
title HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR Inhibitors
title_full HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR Inhibitors
title_fullStr HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR Inhibitors
title_full_unstemmed HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR Inhibitors
title_short HER2-/HER3-Targeting Antibody—Drug Conjugates for Treating Lung and Colorectal Cancers Resistant to EGFR Inhibitors
title_sort her2 her3 targeting antibody drug conjugates for treating lung and colorectal cancers resistant to egfr inhibitors
topic EGFR
HER2
HER3
ADC
trastuzumab deruxtecan (T-DXd)
patritumab deruxtecan
url https://www.mdpi.com/2072-6694/13/5/1047
work_keys_str_mv AT kimioyonesaka her2her3targetingantibodydrugconjugatesfortreatinglungandcolorectalcancersresistanttoegfrinhibitors