Clinical Potential of Human Epidermal Growth Factor Receptor 2 and Human Epidermal Growth Factor Receptor 3 Imaging in Breast Cancer

Increased expression of the human epidermal growth factor receptor (HER) protein family are targets in breast cancer for imaging and therapy. Imaging modalities targeting HER2 and HER3 can diagnose breast cancer with a specific, biologically relevant target. Repeat biopsies do not address heterogeneity intratumorally or between primary disease and metastasis. HER2- and HER3-targeted PET is an important tool to diagnose disease in breast cancer and evaluate response to targeted therapies. PET and single photon emission computed tomography with radiolabeled biomolecules can be used to detect and quantify specific targets, conferring a better understanding of the behavior and effectiveness of treatments.
Source: PET Clinics - Category: Radiology Authors: Source Type: research

Related Links:

The objective of this analysis was to assess the pharmacokinetics of pertuzumab in combination with trastuzumab in Chinese patients with early breast cancer. Samples for pertuzumab and trastuzumab pharmacokinetic analysis were taken from Chinese patients during cycle 1 of treatment and at steady-state in cycle 10. Noncompartmental analysis was used to estimate minimum and maximum serum concentrations (Cmax and Cmin), area under the concentration-time curve, clearance, and other pharmacokinetic parameters. In 15 patients, mean steady-state Cmax and Cmin pertuzumab serum concentrations (368 ± 177 μg/ml, and 122 &pl...
Source: Anti-Cancer Drugs - Category: Cancer & Oncology Tags: Clinical Papers Source Type: research
Authors: Xu Z, Xu P, Fan W, Huang B, Cheng Q, Zhang Z, Wang P, Yu M Abstract Fluorescent in situ hybridization (FISH) is commonly used to determine the ratio of human epidermal growth factor receptor 2 (HER2) to centromere enumeration probe for chromosome 17 (CEP17), which further determines HER2 gene status in breast cancer. However, due to copy number alteration in CEP17, inaccurate diagnoses can occur. The current study was performed to investigate the diagnostic value of an alternative CEP17 reference probe for HER2 status in invasive breast cancer. A higher-order repeat in the centromeric region of chromosome ...
Source: Experimental and Therapeutic Medicine - Category: General Medicine Tags: Exp Ther Med Source Type: research
AbstractPurpose of ReviewBreast cancer is now recognized to be a very heterogeneous disease. This complexity was recently reflected in the newest American Joint Committee on Cancer (AJCC) breast cancer staging, implemented in 2018. Although it seems very daunting, the new staging is based on both the anatomical extent of the disease and the prognostic factors such as hormonal and HER2 status, grade of the tumor, and genomic assays providing information regarding risk of recurrence. The purpose of this review is to illustrate the reasoning for the change in previous, solely an anatomically based breast cancer staging system...
Source: Current Breast Cancer Reports - Category: Cancer & Oncology Source Type: research
A new analysis looked at how dose interruptions or reductions of  ado-trastuzumab emtansine in the treatment of advanced HER2-positive breast cancer impacted long-term survival outcomes.
Source: CancerNetwork - Category: Cancer & Oncology Authors: Source Type: news
Conclusions: Collagen degradation markers are associated with response to neoadjuvant therapy and seem to play a role in breast cancer.
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Article Source Type: research
Patients with metastatic HER2 breast cancer (MBC) often become resistant to HER 2 targeted therapy and recur. The Panacea trial suggested that HER2 MBC patients were more likely to respond to checkpoint therapy if TIL were present or if tumor expressed PD-L1. We assessed whether type I polarized dendritic cells (DC1) could improve checkpoint therapy in a preclinical model of HER2+ breast cancer. TUBO bearing mice were vaccinated with either MHC class I or class II HER2 peptide pulsed DC1 (class I or class II HER2-DC1) concurrent or sequentially with administration of anti-PD-1 or anti-PDL1. Infiltration of tumors by immu...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusion.With a longer follow‐up of almost 5 years, combination of weekly paclitaxel, trastuzumab, and pertuzumab remains effective with a favorable median PFS and a median OS not reached.Implications for Practice.The combination of weekly paclitaxel, trastuzumab, and pertuzumab has been endorsed by the National Comprehensive Cancer Network as one of the first‐line treatment options in patients with human epidermal growth receptor 2 (HER2)‐positive metastatic breast cancer (MBC). However, the long‐term safety and efficacy are still unknown. Findings from this phase II study provide favorable preliminary data on t...
Source: The Oncologist - Category: Cancer & Oncology Authors: Tags: Breast Cancer Source Type: research
Conclusions: Our results provide evidence for the H19-mediated regulation of trastuzumab resistance in HER2-positive breast cancer cells. H19 could act as a potential predictive biomarker for HER2-positive breast cancer patients, and downregulation of H19 could reverse trastuzumab resistance and enhance the inhibitory function of this drug.
Source: Journal of Cancer Research and Therapeutics - Category: Cancer & Oncology Authors: Source Type: research
In this report, we discuss the prognostic impact of these parameters and the necessity of their correct assessment in the diagnostic routine.
Source: Virchows Archiv - Category: Pathology Source Type: research
Conditions:   Bilateral Breast Carcinoma;   Breast Carcinoma;   HER2/Neu Negative;   Mastectomy Patient;   Recurrent Breast Carcinoma;   Triple-Negative Breast Carcinoma Interventions:   Drug: ATR Kinase Inhibitor M6620;   Other: Quality-of-Life Assessment;   Other: Questionnaire Administration;   Radiation: Radiation Therapy Sponsor:   National Cancer Institute (NCI) Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
More News: Breast Cancer | Cancer | Cancer & Oncology | CT Scan | HER2 | Radiology | SPECT