HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative Review

Trastuzumab is the primary treatment for all stages of HER2-overexpressing breast cancer in patients. Though discovered over 20 years ago, trastuzumab-induced cardiotoxicity (TIC) remains a research topic in cardio-oncology. This review explores the pathophysiological basis of TIC and its clinical m...

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Main Authors: Svetoslava Elefterova Slavcheva, Atanas Angelov
Format: Article
Language:English
Published: MDPI AG 2023-12-01
Series:Journal of Cardiovascular Development and Disease
Subjects:
Online Access:https://www.mdpi.com/2308-3425/10/12/489
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author Svetoslava Elefterova Slavcheva
Atanas Angelov
author_facet Svetoslava Elefterova Slavcheva
Atanas Angelov
author_sort Svetoslava Elefterova Slavcheva
collection DOAJ
description Trastuzumab is the primary treatment for all stages of HER2-overexpressing breast cancer in patients. Though discovered over 20 years ago, trastuzumab-induced cardiotoxicity (TIC) remains a research topic in cardio-oncology. This review explores the pathophysiological basis of TIC and its clinical manifestations. Their understanding is paramount for early detection and cardioprotective treatment. Trastuzumab renders cardiomyocytes susceptible by inhibiting the cardioprotective NRG-1/HER2/HER4 signaling pathway. The drug acts on HER2-receptor-expressing cardiomyocytes, endothelium, and cardiac progenitor cells (see the Graphical Abstract). The activation of immune cells, fibroblasts, inflammation, and neurohormonal systems all contribute to the evolution of TIC. A substantial amount of research demonstrates that trastuzumab induces overt and subclinical left ventricular (LV) systolic failure. Data suggest the development of right ventricular damage, LV diastolic dysfunction, and heart failure with preserved ejection fraction. Further research is needed to define a chronological sequence of cardiac impairments to guide the proper timing of cardioprotection implementation.
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spelling doaj.art-434777148dd1413aa180120c7ad537472023-12-22T14:16:43ZengMDPI AGJournal of Cardiovascular Development and Disease2308-34252023-12-01101248910.3390/jcdd10120489HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative ReviewSvetoslava Elefterova Slavcheva0Atanas Angelov1First Department of Internal Diseases, EC Cardiology, Faculty of Medicine, Medical University “Prof. Dr. Paraskev Stoyanov”, 9000 Varna, BulgariaFirst Department of Internal Diseases, EC Cardiology, Faculty of Medicine, Medical University “Prof. Dr. Paraskev Stoyanov”, 9000 Varna, BulgariaTrastuzumab is the primary treatment for all stages of HER2-overexpressing breast cancer in patients. Though discovered over 20 years ago, trastuzumab-induced cardiotoxicity (TIC) remains a research topic in cardio-oncology. This review explores the pathophysiological basis of TIC and its clinical manifestations. Their understanding is paramount for early detection and cardioprotective treatment. Trastuzumab renders cardiomyocytes susceptible by inhibiting the cardioprotective NRG-1/HER2/HER4 signaling pathway. The drug acts on HER2-receptor-expressing cardiomyocytes, endothelium, and cardiac progenitor cells (see the Graphical Abstract). The activation of immune cells, fibroblasts, inflammation, and neurohormonal systems all contribute to the evolution of TIC. A substantial amount of research demonstrates that trastuzumab induces overt and subclinical left ventricular (LV) systolic failure. Data suggest the development of right ventricular damage, LV diastolic dysfunction, and heart failure with preserved ejection fraction. Further research is needed to define a chronological sequence of cardiac impairments to guide the proper timing of cardioprotection implementation.https://www.mdpi.com/2308-3425/10/12/489cardiotoxicitytrastuzumabpathophysiologyclinical manifestation
spellingShingle Svetoslava Elefterova Slavcheva
Atanas Angelov
HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative Review
Journal of Cardiovascular Development and Disease
cardiotoxicity
trastuzumab
pathophysiology
clinical manifestation
title HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative Review
title_full HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative Review
title_fullStr HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative Review
title_full_unstemmed HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative Review
title_short HER2-Targeted Therapy—From Pathophysiology to Clinical Manifestation: A Narrative Review
title_sort her2 targeted therapy from pathophysiology to clinical manifestation a narrative review
topic cardiotoxicity
trastuzumab
pathophysiology
clinical manifestation
url https://www.mdpi.com/2308-3425/10/12/489
work_keys_str_mv AT svetoslavaelefterovaslavcheva her2targetedtherapyfrompathophysiologytoclinicalmanifestationanarrativereview
AT atanasangelov her2targetedtherapyfrompathophysiologytoclinicalmanifestationanarrativereview