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Molecular and clinical traits of HER2-low breast cancer patients and their relationship with neoadjuvant treatment effectiveness.
Eur J Cancer Prev
September 2024
Department of Oncology, Shanghai Pudong New Area Gongli Hospital, Shanghai, China and.
Background: We aimed to investigate the clinical and molecular characteristics of different degrees of human epidermal growth factor receptor 2 (HER2) protein expression in HER2-negative breast cancer and the related factors affecting the efficacy of neoadjuvant chemotherapy in HER2-low breast cancer patients.
Methods: The study endpoint was pathological complete remission (PCR). Blood specimens and fresh cancer tissue samples were collected before neoadjuvant chemotherapy for whole-exon sequencing (WES) and RNA sequencing (RNA-seq), and patients were divided into a human epidermal growth factor receptor 2 (HER2)-low group and a HER2-0 group according to their HER2 expression status via bioinformatics analysis.
Predicting breast cancer prognosis using PR and PIK3CA biomarkers: a comparative analysis of diagnostic groups.
BMC Cancer
January 2025
Department of Pathology, Shanxi Province Cancer Hospital/Shanxi Hospital Affiliated to Cancer Hospital, Chinese Academy of Medical Sciences/Cancer Hospital Affiliated to Shanxi Medical University, Taiyuan, Shanxi Province, 030013, People's Republic of China.
Purpose: To evaluate the prognostic significance of progesterone receptor (PR) expression and the PIK3CA mutation status in HR+/HER2 - breast cancer patients, with the goal of screening patients who may derive the greatest benefit from PI3K-targeted therapy.
Methods: A retrospective analysis was conducted on 152 HR+/HER2 - breast cancer patients stratified by PR expression levels and PIK3CA mutation status. The study population was divided into groups on the basis of a median PR threshold of 50% and further subdivided by PIK3CA mutation status.
Predictive and prognostic value of F-FES PET/CT for patients with recurrent or metastatic breast cancer treated with endocrine therapy plus cyclin-dependent kinase 4/6 inhibitors.
Eur J Nucl Med Mol Imaging
January 2025
Department of Nuclear Medicine, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-Ro 43-Gil, Songpa-Gu, Seoul, 05505, Korea.
Purpose: Estrogen receptor (ER) expression and heterogeneity affect endocrine therapy efficacy. F-fluoroestradiol (F-FES) PET/CT is an effective non-invasive method to analyze systemic ER expression. This study aimed to examine the predictive/prognostic value of F-FES PET/CT for patients treated with endocrine therapy plus cyclin-dependent kinase 4/6 (CDK4/6) inhibitors.
View Article and Find Full Text PDFReal-World Evidence of the Impact of CanAssist Breast on Physician's Decision About the Use of Adjuvant Chemotherapy in Early Breast Cancer.
Cureus
December 2024
Medical Oncology, Healthcare Global Enterprises (HCG) Cancer Center, Bangalore, IND.
Background Clinicians use prognostic biomarker/multi-gene-based tests for predicting recurrence in hormone receptor-positive/HER2-negative (HR+/HER2-) early-stage breast cancer (EBC). CanAssist Beast (CAB) uses the expression of five protein biomarkers in combination with tumor-specific parameters such as tumor size, histopathological grade, and lymph node status to predict the risk of distant recurrence within five years of diagnosis for patients with HR+/HER2-, EBC. The current study aimed to evaluate the impact of prognostic tests on adjuvant chemotherapy decisions by assessing the agreement between clinical and CAB risk stratification as low-risk (LR) or high-risk (HR) for distant recurrence.
View Article and Find Full Text PDFRisk Factors Predicting Outcomes in Advanced Upper Gastrointestinal Cancers Treated With Immune Checkpoint Inhibitors.
Gastroenterology Res
December 2024
Division of Medical Oncology, Department of Internal Medicine, The Arthur G. James Cancer Hospital and Richard J. Solove Research Institute, The Ohio State University Comprehensive Cancer Center, Columbus, OH 43210, USA.
Background: Immune checkpoint inhibitors (ICIs) have moved to the frontline in recent years to manage upper gastrointestinal (UGI) tumors, such as esophageal and gastric cancers. This retrospective review sheds light on real-world data on ICI-treated UGI tumors to identify risk factors (clinical and pathological) impacting the outcome other than traditional biomarkers (programmed cell death ligand 1 (PD-L1) or microsatellite instability status).
Methods: Patients with UGI tumors who received at least one dose of ICI for stage IV or recurrent disease between January 1, 2015, and July 31, 2021, at The Ohio State University were included in the study.
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