ArticleBMC medicine2022
Distinct clinical and somatic mutational features of breast tumors with high-, low-, or non-expressing human epidermal growth factor receptor 2 status.
Article in BMC medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 88 papers, 4 of them syntheses that pooled it.
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Who cites it
88 citing papers in PubMed, 4 syntheses or guidelines pooled it.
- Pathologic response rates in HER2-low versus HER2-zero early breast cancer patients receiving neoadjuvant therapy: a systematic review and meta-analysis.Breast cancer research : BCR · 2025Pooled it
- Survival outcomes in HER2-low versus HER2-zero breast cancer after neoadjuvant chemotherapy: a meta-analysis.World journal of surgical oncology · 2024Pooled it
- Prognostic value of HER2-low status in breast cancer: a systematic review and meta-analysis.ESMO open · 2023Pooled it
- Clinicopathologic characteristics and prognostic significance of HER2-low expression in patients with early breast cancer: A systematic review and meta-analysis.Frontiers in oncology · 2023Pooled it
- Induction chemotherapy followed by camrelizumab plus apatinib and chemotherapy as first-line treatment for extensive-stage small-cell lung cancer: a multicenter, single-arm trial.Signal transduction and targeted therapy · 2025Trial
- [Clinicopathological characteristics of human epidermal growth factor receptor-2 1+ cases in breast cancer].Revista medica del Instituto Mexicano del Seguro Social · 2026Observational
- "Beyond HER2 overexpression: somatic alterations in HER2 and PI3K genes in HER2-high and HER2-low/TNBC breast cancer.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026Article
- Distinct immune microenvironment in HER2-low triple-negative breast cancer underlies inferior response to immunotherapy.NPJ precision oncology · 2026Article
- Noninvasive stratification of HER2 status in breast cancer using multiparametric DECT: a prospective cohort study.International journal of surgery (London, England) · 2026Article
- Article
- Pathogenic germline variants associated with different HER2 expression among breast cancer patients.Discover oncology · 2026Article
- Molecular characteristics and prognosis of triple negative breast cancer stratified by HER2 status.Chinese medical journal · 2026Article
- Value of intratumoral and peritumoral radiomics based on DCE-MRI in predicting HER2-low and HER2-zero in breast cancer.BMC medical imaging · 2026Article
- Intratumoral and peritumoral habitat imaging based on multiparametric MRI to predict HER2-negative breast cancer subtypes: a multicenter study.BMC medical imaging · 2026Article
- Real-World Study Assessing Characteristics and Treatment Patterns of Patients With Human Epidermal Growth Factor Receptor 2 Immunohistochemistry 0 and Human Epidermal Growth Factor Receptor 2-Low Stage IV Breast Cancer: A Multicenter Retrospective Study.JCO precision oncology · 2026Article
- Prevalence of HER2-low status and outcomes in early-stage HER2-negative breast cancer.NPJ breast cancer · 2026Article
- A SHAP-interpretable XGBoost model: MRI-based intratumoral perfusion heterogeneity predicts HER2-zero, -low, and -positive ternary expression status in breast cancer.Cancer imaging : the official publication of the International Cancer Imaging Society · 2026Article
- Multiparametric MRI-based nomogram integrating clinicopathological factors for predicting HER2 expression status in breast cancer.Frontiers in oncology · 2026Article
- Development and validation of a multimodality radiomics-based nomogram for predicting HER2 expression status in invasive breast cancer.Frontiers in oncology · 2026Article
- Illuminating the clinicopathological and genomic landscape of HER2-null, ultralow, and low breast cancers: insights into diagnostic discordance between biopsy and surgical excision.NPJ breast cancer · 2025Article
28 more citing papers are in PubMed but not listed here.
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Authors and funding
17 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundHER2-low breast cancers were reported to have distinct clinicopathological characteristics from HER2-zero; however, the difference in their genetic features remains unclear. This study investigated the clinical and molecular features of breast tumors according to HER2 status.
methodsWe analyzed the clinicopathological and genomic data of 523 Chinese women with breast cancer. Genomic data was generated by targeted next-generation sequencing (NGS) of breast tumor samples using a commercial 520 gene panel. The cohort was stratified according to HER2 status as HER2-zero (n = 90), HER2-low (n = 231), and HER2-positive (n = 202) according to their immunohistochemistry and fluorescence in situ hybridization results.
resultsHER2-low breast tumors were enriched with hormone receptor-positive tumors, and who had lower Ki67 expression levels. Genes were differentially mutated across HER2 subgroups. HER2-low tumors had significantly more mutations involved in PI3K-Akt signaling than HER2-positive (p < 0.001) and HER2-zero breast tumors (p < 0.01). HER2-zero tumors had more mutations in checkpoint factors (p < 0.01), Fanconi anemia (p < 0.05), and p53 signaling and cell cycle pathway (p < 0.05) compared to HER2-low breast tumors. Compared with HER2-zero tumors, HER2-low tumors had significantly lower pathological complete response rates after neoadjuvant therapy (15.9% vs. 37.5%, p = 0.042) and proportion of relapsed/progressed patients across follow-up time points (p = 0.031), but had comparable disease-free survival (p = 0.271).
conclusionOur results demonstrate the distinct clinical and molecular features and clinical outcomes of HER2-low breast tumors.
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