Expanding definitions of HER2 positivity

Expanding definitions of HER2 positivityExpanding definitions of HER2 positivity, Published online: 18 April 2018; doi:10.1038/modpathol.2017.141Expanding definitions of HER2 positivity
Source: Modern Pathology - Category: Pathology Authors: Source Type: research

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AbstractPurposeLiterature on the separate effects of physical activities (PA) on risk of breast cancer (BC) sub-types is heterogeneous. We investigated domain-specific associations between PA and BC risk by menopausal status and molecular subtype.Methods1389 histologically confirmed invasive BC cases and 1712 controls from the MCC-Spain study were included (age: 20 –85 years). Questionnaire information on PA at work, at home, and during leisure time, including recreational PA and sedentary time, and data on reproductive history, anthropometry, family history of BC, diet, and lifestyles were obtained through face...
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
ConclusionPremenopausal Asian women with breast cancer have unique disease characteristics and may benefit from treatment that differs somewhat from international guidelines. Given the great diversity of patients and clinical settings worldwide, the ABCCG advocates evidence-based yet flexible and individualized use of all potential options to improve breast cancer outcomes.
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
AbstractPurposeGene expression profiling (GEP) test scores calculate risks of recurrence and likely benefit of adjuvant chemotherapy in ER-positive, HER2-negative, early-stage breast cancer. As health literacy and numeracy skills in the general population are poor, healthcare professionals (HCPs) require a wide repertoire of communication skills to explain clearly risk of recurrence scores (RSs) and uncertainty. We developed and evaluated an educational program for HCPs discussing GEP test results and adjuvant treatment.MethodsEight-hour workshops contained elements aimed at improving knowledge, communication skills and se...
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
ConclusionPreoperative CEA and CA15-3 levels showed varying prognostic ability according to breast cancer subtype. Preoperative CA15-3 and CEA elevation are significant prognostic factors for luminal breast cancer, but they were not significant factors for TNBC.
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
In this study, we explored the role of MPO-positive cell infiltration and its prognostic significance in invasive breast cancer.MethodsWe performed immunohistochemical staining for MPO on multiple tissue microarrays comprising a total of 928 human breast cancer samples with detailed clinical-pathological annotation and outcome data.ResultsMPO-positive cell infiltration ( ≥ 5 cells/tissue punch) was found in 150 (16%) of the 928 evaluable breast cancer cases. In univariate survival analyses, infiltration by MPO-positive cells was associated with a significantly better overall survival (p 
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
ConclusionsThere is modest correlation in continuous gene expression, as measured by the RS and single-gene results for ER, PR, and HER2 between paired primary tumors and synchronous nodal metastases. RS testing for ER+ breast cancer should continue to be based on analysis of primary tumors.
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research
Roche today announced the phase III FeDeriCa study met its primary endpoint. The study showed a new investigational fixed-dose combination (FDC) of Perjeta ® (pertuzumab) and Herceptin® (trastuzumab), administered by subcutaneous (SC) injection in combination with intravenous (IV) chemotherapy, demonstrated non-inferior levels of Perjeta in the blood (pharmacokinetics) compared to standard IV infusion of Perjeta plus Herceptin and chemotherapy in peo ple with HER2-positive early breast cancer (eBC).
Source: Roche Media News - Category: Pharmaceuticals Source Type: news
Hoskin Many dietary flavonoids possess anti-cancer activities. Here, the effect of apple peel flavonoid fraction 4 (AF4) on the growth of triple-negative (MDA-MB-231, MDA-MB-468), estrogen receptor-positive (MCF-7), and HER2-positive (SKBR3) breast cancer cells was determined and compared with the effect of AF4 on normal mammary epithelial cells and dermal fibroblasts. AF4 inhibited breast cancer cell growth in monolayer cultures, as well as the growth of MCF-7 spheroids, without substantially affecting the viability of non-malignant cells. A sub-cytotoxic concentration of AF4 suppressed the proliferation of MDA-MB-23...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research
Conditions:   Breast Cancer Female;   HER2-positive Breast Cancer;   Hormone Receptor Positive Malignant Neoplasm of Breast;   Metastatic Breast Cancer;   Breast Diseases;   Hormone Receptor Positive Tumor Interventions:   Drug: Pyrotinib;   Drug: Trastuzumab;   Drug: Aromatase Inhibitors Sponsor:   Fuzhou General Hospital Not yet recruiting
Source: ClinicalTrials.gov - Category: Research Source Type: clinical trials
This study shows that EDTA decalcification minimally affects receptor expression results. The incidence of clinically relevant discordance between the primary tumor and bone metastases is low. These findings support that bone biopsies can reliably be used to assess receptor status.
Source: The American Journal of Surgical Pathology - Category: Pathology Tags: Original Articles Source Type: research
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