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Breast Cancer HER2+

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https://www.readbyqxmd.com/read/29786482/human-epidermal-growth-factor-2-positive-breast-cancer-with-mammographic-microcalcification-relationship-to-pathologic-complete-response-after-neoadjuvant-chemotherapy
#1
Fayyaz A K Mazari, Nisha Sharma, David Dodwell, Kieran Horgan
Purpose To determine the relationship between the presence or absence of mammographic calcifications in human epidermal growth factor receptor 2 (HER2)-positive breast cancers and pathologic complete response (pCR) to neoadjuvant chemotherapy and to determine other tumor and clinical characteristics that may be predictive of such a response. Materials and Methods A database of all patients with HER2-positive breast cancer who underwent neoadjuvant chemotherapy between 2007 and 2015 was retrospectively reviewed...
May 16, 2018: Radiology
https://www.readbyqxmd.com/read/29786125/neoadjuvant-chemotherapy-use-in-breast-cancer-is-greatest-in-excellent-responders-triple-negative-and-her2-subtypes
#2
Brittany L Murphy, Courtney N Day, Tanya L Hoskin, Elizabeth B Habermann, Judy C Boughey
BACKGROUND: While breast cancer has historically been treated with surgery followed by adjuvant chemotherapy (AC) and radiation when indicated, neoadjuvant chemotherapy (NAC) use is thought to be increasing; however, the trends of its use in various biological subtypes have not been evaluated. We sought to evaluate the trend of NAC use over time by biological subtype. METHODS: We identified all patients with invasive breast cancer who underwent curative intent surgery and were treated with chemotherapy from 2010 to 2015 from the National Cancer Database...
May 21, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29785440/an-immunoconjugated-up-conversion-nanocomplex-for-selective-imaging-and-photodynamic-therapy-against-her2-positive-breast-cancer
#3
Gonzalo Ramírez-García, Sandeep S Panikar, Tzarara López-Luke, Valeria Piazza, Miguel Angel Honorato-Colin, Tanya Camacho-Villegas, Rodolfo Hernández-Gutiérrez, Elder De la Rosa
Photodynamic therapy represents a very attractive therapeutic tool considered to be effective, minimally invasive and minimally toxic. However, conventional photodynamic therapy actually has two main constraints: the limited penetration depth of visible light needed for its activation, and the lack of selectivity. Considering this, this work reports the synthesis and evaluation of a novel nanoconjugate for imaging and selective photodynamic therapy against HER2-positive breast cancer, a particularly aggressive form of the disease...
May 22, 2018: Nanoscale
https://www.readbyqxmd.com/read/29785156/correlations-of-aldehyde-dehydrogenase-1-aldh1-expression-with-traditional-prognostic-parameters-and-different-molecular-subtypes-of-breast-carcinoma
#4
Piyabi Sarkar, Keya Basu, Pubali Sarkar, Uttara Chatterjee, Madhumita Mukhopadhyay, Manoj Kumar Choudhuri, Diptendra Kumar Srakar
Background and aim: Breast cancer, a heterogeneous disease, is the most common cause of cancer-related death in women worldwide. Despite considerable developments in treatment modalities, a subset of patients with advanced-stage breast carcinoma display poor prognosis. Breast cancer heterogeneity and risk of recurrence could be explained with the help of cancer stem cell hypothesis. Stem cells have the capacity to self-renew and differentiate into multiple cell types. Aldehyde dehydrogenase-1 (ALDH1), an enzyme responsible for the oxidation of intracellular aldehydes, contributes to normal and tumor stem cell differentiation...
2018: Clujul Medical (1957)
https://www.readbyqxmd.com/read/29784737/nccn-guidelines-updates-breast-cancer
#5
Sharon H Giordano, Anthony D Elias, William J Gradishar
The emergence of CDK4/6 inhibitors has changed the treatment algorithm for advanced/metastatic estrogen receptor-positive breast cancer. In pivotal trials of palbociclib, ribociclib, and abemaciclib, doubling in progression-free survival has been seen. All 3 agents in this class are now included in the NCCN Guidelines for Breast Cancer, and clinicians should be incorporating these agents into their treatment algorithms. The other important issue in this breast cancer setting is extended duration of endocrine therapy...
May 2018: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/29783652/pituitary-gonadal-thyroid-hormones-and-endocrine-disruptors-in-pre-and-postmenopausal-nigerian-women-with-er-pr-and-her-2-positive-and-negative-breast-cancers
#6
Olulope Ajayi, Mabel Charles-Davies, John Anetor, Adeyinka Ademola
Breast cancer is broadly sub-divided into hormone responsive and non-hormone responsive subtypes. Estradiol has been associated with hormone responsive breast cancers. There is, however, a paucity of information on the role of sex hormones, gonadotropins, and thyroid hormone in non-hormone responsive breast cancer. This study aimed to determine differences in the serum levels of sex hormones, gonadotropins, thyroid hormones, and endocrine disruptors (lead, cadmium, and arsenic) in Nigerian women with hormone responsive and non-hormone responsive breast cancers...
May 18, 2018: Medical Sciences: Open Access Journal
https://www.readbyqxmd.com/read/29782359/brca1-mutations-associated-with-increased-risk-of-brain-metastases-in-breast-cancer-a-1-2-matched-pair-analysis
#7
Peter J Zavitsanos, David E Wazer, Jaroslaw T Hepel, Yihong Wang, Kamaljeet Singh, Kara L Leonard
BACKGROUND: Brain metastases (BM) occur in ∼5% of breast cancer patients. BRCA1-associated cancers are often basal-like and basal-like cancers are known to have a predilection for central nervous system metastases. We performed a matched-pair analysis of breast cancer patients with and without BRCA mutations and compared the frequency of BM in both groups. MATERIALS AND METHODS: From a database of 1935 patients treated for localized breast cancer at our institution from 2009 to 2014 we identified 20 patients with BRCA1 or BRCA2 mutations and manually matched 40 patients without BRCA mutations accounting for age, stage, estrogen receptor expression, and human epidermal growth factor receptor 2 (HER2) expression...
May 18, 2018: American Journal of Clinical Oncology
https://www.readbyqxmd.com/read/29781326/progression-free-survival-with-endocrine-based-therapies-following-progression-on-non-steroidal-aromatase-inhibitor-among-postmenopausal-women-with-hr-her2-metastatic-breast-cancer-a-network-meta-analysis
#8
Rajeev Ayyagari, Derek Tang, Oscar Patterson-Lomba, Zhou Zhou, Jipan Xie, David Chandiwana, Anand A Dalal, Polly Ann Niravath
OBJECTIVE: To quantify the comparative efficacy of currently available endocrine-based therapies (ETs) for postmenopausal women with HR+/HER2- mBC after NSAI progression. DESIGN: network meta-analysis (NMA) Methods: Randomized clinical trials of ETs for HR+/HER2- mBC were identified via a systematic literature review using Medline, EMBASE, Cochrane Library, and key conference proceedings. All trials met the following inclusion criteria: 1) included women with HR+/HER2- mBC, 2) previous treatment with ETs or chemotherapy as first-line therapy, 3) treatment with ET as monotherapy or in combination with targeted therapy, 4) PFS was reported, and 5) published in 2007 (when HER2 testing became standardized) or later...
May 21, 2018: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/29781317/combination-therapies-for-the-treatment-of-her2-positive-breast-cancer-current-and-future-prospects
#9
Mariana Brandão, Noam F Pondé, Francesca Poggio, Nuria Kotecki, Mauren Salis, Matteo Lambertini, Evandro de Azambuja
HER2-positive disease is an aggressive subtype of breast cancer that has been revolutionized by anti-HER2 directed therapies. Multiple drugs have been developed and are currently in clinical use, including trastuzumab, lapatinib, pertuzumab, T-DM1 and neratinib, alone or combined in "dual HER2-blockade" regimens. Areas covered: A comprehensive literature review was performed regarding the current state and the future of combination regimens containing anti-HER2 agents, focusing on their efficacy, toxicity and cost-effectiveness...
May 21, 2018: Expert Review of Anticancer Therapy
https://www.readbyqxmd.com/read/29780255/predicting-initial-margin-status-in-breast-cancer-patients-during-breast-conserving-surgery
#10
Zihao Pan, Liling Zhu, Qian Li, Jianguo Lai, Jingwen Peng, Fengxi Su, Shunrong Li, Kai Chen
Background: We sought to develop and validate a model for prediction of initial margin status during breast-conserving surgery (BCS). Methods: We included eligible breast cancer patients receiving BCS in Sun Yat-sen Memorial Hospital from January 2003 to December 2014. All patients received intraoperative frozen-section analysis for initial margin assessment. We used univariate and multivariate logistic regression analyses to screen for predictors. A nomogram was developed in the training cohort (n=1,193) from the south branch of the hospital and externally validated in the validation cohort (n=499) from the north branch...
2018: OncoTargets and Therapy
https://www.readbyqxmd.com/read/29779938/expression-of-truncated-her2-and-its-prognostic-value-in-her2-positive-breast-cancer-patients
#11
Alaa Mohamed Maria, Mohamed El-Shebiney, Ayman Mohamed El-Saka, Yomna Zamzam
PURPOSE: The purpose of this work was to assess the truncated form of human epidermal growth factor receptor 2 (HER2) such as p95-HER2 expression in HER2-positive breast cancer (BC) patients who developed metastatic disease after adjuvant treatment with a trastuzumab-containing regimen. PATIENTS AND METHODS: Thirty-two histologically diagnosed HER2-positive BC patients who developed distant failure after treatment with trastuzumab-based chemotherapy (CT) regimen as an adjuvant therapy were included in the study...
May 17, 2018: Journal of the Egyptian National Cancer Institute
https://www.readbyqxmd.com/read/29779072/intratumoral-heterogeneity-on-dedicated-breast-positron-emission-tomography-predicts-malignancy-grade-of-breast-cancer
#12
Norio Masumoto, Takayuki Kadoya, Shinsuke Sasada, Akiko Emi, Koji Arihiro, Morihito Okada
PURPOSE: Dedicated breast positron emission tomography (DbPET) provides detailed high-resolution images and can detect intratumoral heterogeneity using 18 F-fluorodeoxyglucose (FDG). We aimed to evaluate the correlation between FDG uptake on DbPET and the clinicopathological features of breast cancer, particularly those with an intratumoral heterogeneous distribution of FDG on DbPET. METHODS: We evaluated 195 consecutive patients with invasive breast cancer who underwent preoperative whole-body PET (WBPET) and DbPET concurrently between January 2016 and March 2017...
May 19, 2018: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29778787/efficacy-of-palbociclib-combinations-in-hormone-receptor-positive-metastatic-breast-cancer-patients-after-prior-everolimus-treatment
#13
Ajay Dhakal, Christina M Matthews, Ellis Glenn Levine, Kilian Elizabeth Salerno, Fan Zhang, Kazuaki Takabe, Amy P Early, Stephen B Edge, Tracy O'Connor, Thaer Khoury, Jessica S Young, Mateusz Opyrchal
PURPOSE: Outcome data on hormone receptor positive (HR+ ), human epidermal growth factor receptor 2 (HER2) nonamplified (HER2- ) metastatic breast cancer (MBC) treated with palbociclib after treatment with everolimus are lacking. The PALOMA-3 trial, showing benefit of palbociclib plus fulvestrant compared to fulvestrant alone in HR+ HER2- MBC after progression while receiving endocrine therapy excluded women previously treated with everolimus. The objective of this study was to examine outcomes of HR+ HER2- MBC with prior exposure to everolimus while receiving palbociclib-based therapy...
April 28, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29777404/randomized-trial-comparing-resection-of-primary-tumor-with-no-surgery-in-stage-iv-breast-cancer-at-presentation-protocol-mf07-01
#14
Atilla Soran, Vahit Ozmen, Serdar Ozbas, Hasan Karanlik, Mahmut Muslumanoglu, Abdullah Igci, Zafer Canturk, Zafer Utkan, Cihangir Ozaslan, Turkkan Evrensel, Cihan Uras, Erol Aksaz, Aykut Soyder, Umit Ugurlu, Cavit Col, Neslihan Cabioglu, Betül Bozkurt, Ali Uzunkoy, Neset Koksal, Bahadir M Gulluoglu, Bulent Unal, Can Atalay, Emin Yıldırım, Ergun Erdem, Semra Salimoglu, Atakan Sezer, Ayhan Koyuncu, Gunay Gurleyik, Haluk Alagol, Nalan Ulufi, Uğur Berberoglu, Mustafa Dulger, Omer Cengiz, Efe Sezgin, Ronald Johnson
BACKGROUND: The MF07-01 trial is a multicenter, phase III, randomized, controlled study comparing locoregional treatment (LRT) followed by systemic therapy (ST) with ST alone for treatment-naïve stage IV breast cancer (BC) patients. METHODS: At initial diagnosis, patients were randomized 1:1 to either the LRT or ST group. All the patients were given ST either immediately after randomization or after surgical resection of the intact primary tumor. RESULTS: The trial enrolled 274 patients: 138 in the LRT group and 136 in the ST group...
May 17, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29777007/development-of-64-cu-nota-trastuzumab-for-her2-targeting-radiopharmaceutical-with-improved-pharmacokinetics-for-human-study
#15
Sang-Keun Woo, Su Jin Jang, Min-Jung Seo, Ju Hui Park, Byoung Soo Kim, Eun Jung Kim, Yong Jin Lee, Tae Sup Lee, Gwang Il An, In Ho Song, Youngho Seo, Kwang Il Kim, Joo Hyun Kang
Purpose The purpose of this study was to develop 64 Cu-labeled trastuzumab with improved pharmacokinetics for human epidermal growth factor receptor 2. Methods Trastuzumab was conjugated with SCN-Bn-NOTA and radiolabeled with 64 Cu. Serum stability and immunoreactivity of 64 Cu-NOTA-trastuzumab were tested. Small animal PET imaging and biodistribution study were performed in HER2-positive breast cancer xenograft model (BT-474). Internal dosimetry of experimental animals was performed using the image-based approach with the Monte Carlo N-Particle Code...
May 18, 2018: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
https://www.readbyqxmd.com/read/29776911/shorter-trastuzumab-course-still-effective
#16
(no author information available yet)
Reducing the duration of trastuzumab treatment may be beneficial for women with HER2-positive breast cancer: In the phase III PERSEPHONE trial, women who received the drug for 6 months had a similar rate of disease-free survival as women on a 12-month course, but were half as likely to stop treatment due to cardiac side effects.
May 18, 2018: Cancer Discovery
https://www.readbyqxmd.com/read/29774318/biological-subtypes-of-breast-cancer-and-sentinel-lymph-node-biopsy
#17
Muhammet Kadri Çolakoğlu, Erhan Güven, Gökhan Giray Akgül, Lütfi Doğan, Mehmet Ali Gülçelik
Objective: Breast cancer subtypes are used as prognostic and predictive factors considering the genomic profile of the disease. This study is designed to investigate the Sentinel Lymph Node (SLN) detection rate in breast cancer for different biological characteristics. Material and Methods: Patients on whom we performed the methylene blue method alone were named as Group I, radiocolloid substance method alone as Group II and both methylene blue and radiocolloid method as Group III...
April 2018: European Journal of Breast Health
https://www.readbyqxmd.com/read/29774130/targeting-invadopodia-mediated-breast-cancer-metastasis-by-using-abl-kinase-inhibitors
#18
Tomer Meirson, Alessandro Genna, Nikola Lukic, Tetiana Makhnii, Joel Alter, Ved P Sharma, Yarong Wang, Abraham O Samson, John S Condeelis, Hava Gil-Henn
Metastatic dissemination of cancer cells from the primary tumor and their spread to distant sites in the body is the leading cause of mortality in breast cancer patients. While researchers have identified treatments that shrink or slow metastatic tumors, no treatment that permanently eradicates metastasis exists at present. Here, we show that the ABL kinase inhibitors imatinib, nilotinib, and GNF-5 impede invadopodium precursor formation and cortactin-phosphorylation dependent invadopodium maturation, leading to decreased actin polymerization in invadopodia, reduced extracellular matrix degradation, and impaired matrix proteolysis-dependent invasion...
April 24, 2018: Oncotarget
https://www.readbyqxmd.com/read/29774071/molecular-detection-and-analysis-of-exosomes-using-surface-enhanced-raman-scattering-gold-nanorods-and-a-miniaturized-device
#19
Elyahb Allie Kwizera, Ryan O'Connor, Vojtech Vinduska, Melody Williams, Elizabeth R Butch, Scott E Snyder, Xiang Chen, Xiaohua Huang
Exosomes are a potential source of cancer biomarkers. Probing tumor-derived exosomes can offer a potential non-invasive way to diagnose cancer, assess cancer progression, and monitor treatment responses. Novel molecular methods would facilitate exosome analysis and accelerate basic and clinical exosome research. Methods: A standard gold-coated glass microscopy slide was used to develop a miniaturized affinity-based device to capture exosomes in a target-specific manner with the assistance of low-cost 3-D printing technology...
2018: Theranostics
https://www.readbyqxmd.com/read/29773838/impact-of-timing-of-trastuzumab-initiation-on-long-term-outcome-of-patients-with-early-stage-her2-positive-breast-cancer-the-one-thousand-her2-patients-project
#20
Giuseppe Gullo, Naomi Walsh, David Fennelly, Reetesh Bose, Janice Walshe, Dimitrios Tryfonopoulos, Kate O'Mahony, Lisa Hammond, Nuno Silva, Deirdre McDonnell, Josephine Ballot, Cecily Quinn, Enda W McDermott, Denis Evoy, Ruth Prichard, James Geraghty, John Amstrong, John Crown
BACKGROUND: The optimal timing of (neo)adjuvant trastuzumab initiation with respect to chemotherapy and surgery remains undefined. METHODS: Retrospective analysis of a large institutional database of HER2-positive patients who received anti-HER2 therapy. We included all Stage I to III patients treated with trastuzumab with a minimum follow up of 3 years. The date of first breast biopsy was recorded as initial diagnosis. RESULTS: A total of 506 patients [adjuvant: 386 (76%)-neo-adjuvant: 120 (24%)] were included...
May 18, 2018: British Journal of Cancer
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