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HER2 Unraveled—The Vital Distinction Between Overexpression and Gene Amplification in Cancer

11 Dec 2025

This content is sponsored. It is intended for healthcare professionals only.

Human epidermal growth factor receptor 2 (HER2) is a crucial biomarker in contemporary cancer management. Alterations in the HER2 protein or in the protein-coding gene, erythroblastic leukemia viral oncogene homolog 2 (ERBB2; hereafter referred to as HER2 in line with common practice), have significant clinical implications. Overexpression of the HER2 protein, gene amplification or activating mutations can overactivate or enhance downstream HER2 signaling pathways. Increased HER2 signaling drives key processes in tumorigenesis, including cellular transformation, survival, proliferation, and in

HER2 Unraveled—The Vital Distinction Between Overexpression and Gene Amplification in Cancer

For healthcare professionals

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