292PBRCA1/2 testing in HER2- advanced breast cancer (ABC): Results from the European component of a multi-country real-world study

This study assessed BRCA1/2 testing rates in HER2- adult women with ABC in Germany, France, Italy, Spain and UK (EU5).MethodsPatient (pt) demographics/clinical characteristics were collected from oncologists in EU5 via Adelphi Advanced Breast Cancer Disease Specific Program. Data collected from 2 years (2015 and 2017) were merged across common variables. Differences in pt demographics/characteristics among BRCA1/2 tested/untested pts were analyzed via t-tests and z-tests. BRCA1/2 testing was analyzed via z-tests. Analyses of BRCA1/2 testing rates were stratified by hormone receptor status [hormone receptor positive (HR+)/HER2- or triple negative breast cancer (TNBC)] and HR status by family history (FHx) of BC or OC.Results4,876 records were provided by 742 oncologists. The mean age was 63.6 yrs; 75% HR+/HER2-, 23% TNBC, 2% unknown HR status. Compared to BRCA1/2 untested pts, BRCA1/2 tested pts were younger [57.7 vs 65.2 yrs (p
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research

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Authors: Workman P Abstract This personal perspective focuses on small-molecule inhibitors of proteostasis networks in cancer-specifically the discovery and development of chemical probes and drugs acting on the molecular chaperones HSP90 and HSP70, and on the HSF1 stress pathway. Emphasis is on progress made and lessons learned and a future outlook is provided. Highly potent, selective HSP90 inhibitors have proved invaluable in exploring the role of this molecular chaperone family in biology and disease pathology. Clinical activity was observed, especially in non small cell lung cancer and HER2 positive breas...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
AbstractObjectiveThe aim of this analysis is to evaluate the relative weight of different epidemiological risk factors on the development of different breast cancer subtypes (i.e. luminal, Her2+  overexpressed or triple negative).MethodsDe-identified datasets of female participants recruited within the Prostate, Lung, Colorectal, and Ovarian (PLCO) trial were accessed. Multivariate Cox regression analysis was utilized to assess factors affecting the development of breast cancer (regardless of subtype). Additional multivariate analyses were conducted to assess factors affecting the development of the three principal ...
Source: Clinical and Translational Oncology - Category: Cancer & Oncology Source Type: research
Abstract OBJECTIVE: The aim of this analysis is to evaluate the relative weight of different epidemiological risk factors on the development of different breast cancer subtypes (i.e. luminal, Her2+ overexpressed or triple negative). METHODS: De-identified datasets of female participants recruited within the Prostate, Lung, Colorectal, and Ovarian (PLCO) trial were accessed. Multivariate Cox regression analysis was utilized to assess factors affecting the development of breast cancer (regardless of subtype). Additional multivariate analyses were conducted to assess factors affecting the development of t...
Source: Clinical Prostate Cancer - Category: Cancer & Oncology Authors: Tags: Clin Transl Oncol Source Type: research
Abstract BACKGROUND: Approximately 80% of breast cancers amongst premenopausal women are hormone receptor-positive. Adjuvant endocrine therapy is an integral component of care for hormone receptor-positive breast cancer and in premenopausal women includes oestrogen receptor blockade with tamoxifen, temporary suppression of ovarian oestrogen synthesis by luteinising hormone releasing hormone (LHRH) agonists, and permanent interruption of ovarian oestrogen synthesis with oophorectomy or radiotherapy. Recent international consensus statements recommend single-agent tamoxifen or aromatase inhibitors with ovarian funct...
Source: Cochrane Database of Systematic Reviews - Category: General Medicine Authors: Tags: Cochrane Database Syst Rev Source Type: research
Molecules, Vol. 25, Pages 1025: Trastuzumab Conjugated Superparamagnetic Iron Oxide Nanoparticles Labeled with 225Ac as a Perspective Tool for Combined α-Radioimmunotherapy and Magnetic Hyperthermia of HER2-Positive Breast Cancer Molecules doi: 10.3390/molecules25051025 Authors: Edyta Cędrowska Marek Pruszyński Weronika Gawęda Michał Żuk Paweł Krysiński Frank Bruchertseifer Alfred Morgenstern Maria-Argyro Karageorgou Penelope Bouziotis Aleksander Bilewicz It has been proven and confirmed in numerous repeated tests, that the use of a combination of several therapeutic methods gives muc...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research
Abstract NOTCH1, NOTCH2, NOTCH3 and NOTCH4 are transmembrane receptors that transduce juxtacrine signals of the delta‑like canonical Notch ligand (DLL)1, DLL3, DLL4, jagged canonical Notch ligand (JAG)1 and JAG2. Canonical Notch signaling activates the transcription of BMI1 proto‑oncogene polycomb ring finger, cyclin D1, CD44, cyclin dependent kinase inhibitor 1A, hes family bHLH transcription factor 1, hes related family bHLH transcription factor with YRPW motif 1, MYC, NOTCH3, RE1 silencing transcription factor and transcription factor 7 in a cellular context‑dependent manner, while non‑canonical Notch s...
Source: International Journal of Molecular Medicine - Category: Molecular Biology Authors: Tags: Int J Mol Med Source Type: research
Heerlein Hussain :The epidermal growth factor receptor (EGFR) family contains four transmembrane tyrosine kinases (EGFR1/ErbB1, Her2/ErbB2, Her3/ErbB3 and Her4/ErbB4) and 13 secreted polypeptide ligands. EGFRs are overexpressed in many solid tumors, including breast, pancreas, head-and-neck, prostate, ovarian, renal, colon, and non-small-cell lung cancer. Such overexpression produces strong stimulation of downstream signaling pathways, which induce cell growth, cell differentiation, cell cycle progression, angiogenesis, cell motility and blocking of apoptosis.The high expression and/or functional activation of EGF...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
Abstract Several papers have reported that calcium channel blocking drugs were associated with increased breast cancer risk and worsened prognosis. One of the most common signs of breast tumors is the presence of small deposits of calcium, known as microcalcifications. Therefore, we studied the effect of dihydropyridine nifedipine on selected calcium transport systems in MDA-MB-231 cells, originating from triple negative breast tumor and JIMT1 cells that represent a model of HER2-positive breast cancer, which possesses amplification of HER2 receptor, but cells do not response to HER2 inhibition treatment with tras...
Source: Biochemical Pharmacology - Category: Drugs & Pharmacology Authors: Tags: Biochem Pharmacol Source Type: research
CONCLUSIONS: Treatment with dual anti-HER2 therapy for 24 weeks led to a numeric increase in pCR rate in women with HER2-positive breast cancer, without using chemotherapy. If validated, this approach may help identify patients who may benefit from de-escalation of therapy. PMID: 31662331 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
ConclusionsAccording to this retrospective study, BRCA mutant patients tend to have worse clinical and pathological features comparing age-matched controls.Legal entity responsible for the studySercan Aksoy.FundingHas not received any funding.DisclosureAll authors have declared no conflicts of interest.
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research
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