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https://www.readbyqxmd.com/read/27924154/early-diagnosis-of-brain-metastases-using-a-biofluids-metabolomics-approach-in-mice
#1
James R Larkin, Alex M Dickens, Timothy D W Claridge, Claire Bristow, Kleopatra Andreou, Daniel C Anthony, Nicola R Sibson
Over 20% of cancer patients will develop brain metastases. Prognosis is currently extremely poor, largely owing to late-stage diagnosis. We hypothesized that biofluid metabolomics could detect tumours at the micrometastatic stage, prior to the current clinical gold-standard of blood-brain barrier breakdown. Metastatic mammary carcinoma cells (4T1-GFP) were injected into BALB/c mice via intracerebral, intracardiac or intravenous routes to induce differing cerebral and systemic tumour burdens. B16F10 melanoma and MDA231BR-GFP human breast carcinoma cells were used for additional modelling...
2016: Theranostics
https://www.readbyqxmd.com/read/27923595/vitamin-d-compounds-inhibit-cancer-stem-like-cells-and-induce-differentiation-in-triple-negative-breast-cancer
#2
REVIEW
Naing Lin Shan, Joseph Wahler, Hong Jin Lee, Min Ji Bak, Soumyasri Das Gupta, Hubert Maehr, Nanjoo Suh
Triple-negative breast cancer is one of the least responsive breast cancer subtypes to available targeted therapies due to the absence of hormonal receptors, aggressive phenotypes, and the high rate of relapse. Early breast cancer prevention may therefore play an important role in delaying the progression of triple-negative breast cancer. Cancer stem cells are a subset of cancer cells that are thought to be responsible for tumor progression, treatment resistance, and metastasis. We have previously shown that vitamin D compounds, including a Gemini vitamin D analog BXL0124, suppress progression of ductal carcinoma in situ in vivo and inhibit cancer stem-like cells in MCF10DCIS mammosphere cultures...
December 3, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27923361/epidemiology-of-breast-cancer-retrospective-study-in-the-central-african-republic
#3
Augustin Balekouzou, Ping Yin, Christian Maucler Pamatika, Ghose Bishwajit, Sylvain Wilfrid Nambei, Marceline Djeintote, Barbara Esther Ouansaba, Chang Shu, Minghui Yin, Zhen Fu, Tingting Qing, Mingming Yan, Yuanli Chen, Hongyu Li, Zhongyu Xu, Boniface Koffi
BACKGROUND: Breast cancer is recognised as a major public health problem in developing countries; however, there is very limited evidence about its epidemiology in the Central African Republic. The aim of this study was to investigate the epidemiological and histopathological characteristics of breast cancer in Bangui. METHODS: This is a retrospective study based on the data collected from pathological anatomy records from 2003 to 2015 in Bangui. A questionnaire was designed to collect information and data was analysed using descriptive and inferential statistical methods...
December 7, 2016: BMC Public Health
https://www.readbyqxmd.com/read/27909824/usefulness-of-ctc-and-dtc-bm-detection-for-adjuvant-therapy-effects-and-prognosis-prediction-in-early-breast-carcinoma-results-of-8-11-years-of-follow-up-evaluation
#4
Hiroshi Takeyama, T Shimada, S Kinoshita, K Uchida
BACKGROUND: Circulating tumor cells (CTCs) reportedly have been detected in the peripheral blood of more than 50% of breast carcinoma cases with distant metastases. Moreover, the survival period is shorter for patients who had more than five CTCs after a single chemotherapy treatment. However, a few data show the relationships between CTCs and expressions of disseminated tumor cells in the bone marrow (DTCs-BM), including treatment effects and prognoses in early breast carcinomas. METHODS: In this study, CTCs and DTC-BMs were measured by the CellSearch System for 20 patients with stages 1-3 carcinomas, who were followed for 8-11 years...
December 1, 2016: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/27902592/dynamic-contrast-enhanced-breast-magnetic-resonance-imaging-for-the-prediction-of-early-and-late-recurrences-in-breast-cancer
#5
Eun Jung Choi, HyeMi Choi, Sin Ae Choi, Ji Hyun Youk
The aim of the study was to evaluate dynamic contrast-enhanced breast magnetic resonance imaging (DCE-MRI) features for the prediction of early and late recurrences in patients with breast cancer.Of 1030 breast cancer patients who underwent surgery at our hospital from January 2007 to July 2011, 83 recurrent breast cancer patients were enrolled in this study. We compared MRI features (background parenchymal enhancement [BPE], internal enhancement, adjacent vessel sign, whole-breast vascularity, initial enhancement pattern, kinetic curve types, and quantitative kinetic parameters) and clinico-pathologic variables (age, stage, histologic grade, nuclear grade, existence of lymphovascular invasion and extensive intraductal carcinoma component, and immunohistochemical profiles) between patients with early (≤2...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27888782/effect-of-smoking-cessation-in-saliva-compounds-by-ftir-spectroscopy
#6
Laís Morandini Rodrigues, Taciana Deprá Magrini, Celina Faig Lima, Jaqueline Scholz, Herculano da Silva Martinho, Janete Dias Almeida
INTRODUCTION: Smoking is currently considered one of the biggest risk factors for the development of various diseases and early death. Fourier transform infrared (FTIR) spectroscopy is a valuable tool for analysis of biofluids such as saliva and is considered useful for diagnostic purposes. The aim of this study was to evaluate the effect of smoking cessation on saliva composition by FTIR spectroscopy. METHODS: We analyzed the saliva of participants in two groups: a smoker group made up of 10 chronic smokers and a former smoker group made up of 10 individuals who had stopped smoking...
November 23, 2016: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/27873170/overcalling-low-risk-findings-grouped-amorphous-calcifications-found-at-screening-mammography-associated-with-minimal-cancer-risk
#7
Madoka Iwase, Hiroko Tsunoda, Kanako Nakayama, Emiko Morishita, Naoki Hayashi, Koyu Suzuki, Hideko Yamauchi
BACKGROUND: Because of the increasing availability of screening mammography and spread of information about its benefits, the incidence of early breast cancer has been increasing in Japan. However, screening mammography can result in overdiagnoses or false positives, causing in some subjects undergoing unnecessary invasive procedures. The current mammography guidelines recommend further investigation of subjects with grouped amorphous calcifications; this recommendation may have resulted in overdiagnoses or false positives...
November 21, 2016: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/27872946/implementation-of-image-guided-intensity-modulated-accelerated-partial-breast-irradiation-three-year-results-of-a%C3%A2-phase%C3%A2-ii-clinical-study
#8
Norbert Mészáros, Tibor Major, Gábor Stelczer, Zoltán Zaka, Emőke Mózsa, Dávid Pukancsik, Zoltán Takácsi-Nagy, János Fodor, Csaba Polgár
PURPOSE: To report 3‑year results of accelerated partial breast irradiation (APBI) using image-guided intensity-modulated radiotherapy (IG-IMRT) following breast conserving surgery (BCS) for low-risk early invasive breast cancer. PATIENTS AND METHODS: Between July 2011 and March 2014, 60 patients with low-risk early invasive breast cancer underwent BCS and were enrolled in this phase II prospective study. The total dose was 36.9 Gy (9 fractions of 4.1 Gy, two fractions/day)...
November 21, 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/27872526/progesterone-receptors-pathological-complete-response-and-early-outcome-for-locally-advanced-breast-cancer-a-single-centre-study-pplb-01
#9
Sanjit Agrawal, Lalit Banswal, Animesh Saha, Indu Arun, Soumitra Shankar Datta, Sanjoy Chatterjee, Rosina Ahmed
Neoadjuvant chemotherapy (NACT) for locally advanced breast cancer (LABC), apart from increasing breast conservation rates, also provides an opportunity to assess tumour response to chemotherapy, with Pathological Complete Response (pCR) described as an independent prognostic factor and a surrogate marker for better outcome and survival. Our primary aim was to identify clinical and pathological factors associated with pCR following NACT in patients with LABC treated at our institution. Our secondary aim was to analyze the impact of pCR and associated factors on disease free survival (DFS) and overall survival (OS)...
December 2016: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27866865/accelerated-partial-breast-irradiation-executive-summary-for-the-update-of-an-astro-evidence-based-consensus-statement
#10
Candace Correa, Eleanor E Harris, Maria Cristina Leonardi, Benjamin D Smith, Alphonse G Taghian, Alastair M Thompson, Julia White, Jay R Harris
PURPOSE: To update the accelerated partial breast irradiation Consensus Statement published in 2009 and provide guidance on use of intraoperative radiation therapy (IORT) for partial breast irradiation in early-stage breast cancer, based on published evidence complemented by expert opinion. METHODS AND MATERIALS: A systematic PubMed search using the same terms as the original Consensus Statement yielded 419 articles; 44 articles were selected. The authors synthesized the published evidence and, through a series of conference calls and e-mails, reached consensus regarding the recommendations...
September 17, 2016: Practical Radiation Oncology
https://www.readbyqxmd.com/read/27864452/identifying-progression-predictors-of-breast-ductal-carcinoma-in-situ
#11
REVIEW
Joe Yeong, Aye Aye Thike, Puay Hoon Tan, Jabed Iqbal
Ductal carcinoma in situ (DCIS) refers to neoplastic epithelial cells proliferating within the mammary ducts of the breast, which have not breached the basement membrane nor invaded surrounding tissues. Traditional thinking holds that DCIS represents an early step in a linear progression towards invasive ductal carcinoma (IDC). However, as only approximately half of DCIS cases progress to IDC, important questions around the key determinants of malignant progression need to be answered. Recent studies have revealed that molecular differences between DCIS and IDC cells are not found at the genomic level; instead, altered patterns of gene expression and post-translational regulation lead to distinct transcriptomic and proteomic profiles...
November 18, 2016: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/27861897/genome-evolution-in-ductal-carcinoma-in-situ-invasion-of-the-clones
#12
REVIEW
Anna Casasent, Mary Edgerton, Nicholas E Navin
Ductal Carcinoma In Situ (DCIS) is the most frequently diagnosed early stage breast cancer. Only a subset of patients progress to invasive ductal carcinoma (IDC), and this presents a formidable clinical challenge for determining which patients to treat aggressively and which patients to monitor without therapeutic intervention. Understanding the molecular and genomic basis of invasion has been difficult to study in DCIS cancers due to several technical obstacles, including low tumour cellularity, lack of fresh-frozen tissues, and intratumour heterogeneity...
November 9, 2016: Journal of Pathology
https://www.readbyqxmd.com/read/27844260/breast-density-notification-legislation-and-breast-cancer-stage-at-diagnosis-early-evidence-from-the-seer-registry
#13
Ilana Richman, Steven M Asch, Eran Bendavid, Jay Bhattacharya, Douglas K Owens
BACKGROUND: Twenty-eight states have passed breast density notification laws, which require physicians to inform women of a finding of dense breasts on mammography. OBJECTIVE: To evaluate changes in breast cancer stage at diagnosis after enactment of breast density notification legislation. DESIGN: Using a difference-in-differences analysis, we examined changes in stage at diagnosis among women with breast cancer in Connecticut, the first state to enact legislation, compared to changes among women in control states...
November 14, 2016: Journal of General Internal Medicine
https://www.readbyqxmd.com/read/27842517/screening-and-characterization-of-novel-specific-peptides-targeting-mda-mb-231-claudin-low-breast-carcinoma-by-computer-aided-phage-display-methodologies
#14
Franklin L Nobrega, Débora Ferreira, Ivone M Martins, Maria Suarez-Diez, Joana Azeredo, Leon D Kluskens, Lígia R Rodrigues
BACKGROUND: Claudin-low breast carcinoma represents 19% of all breast cancer cases and is characterized by an aggressive progression with metastatic nature and high rates of relapse. Due to a lack of known specific molecular biomarkers for this breast cancer subtype, there are no targeted therapies available, which results in the worst prognosis of all breast cancer subtypes. Hence, the identification of novel biomarkers for this type of breast cancer is highly relevant for an early diagnosis...
November 14, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27825140/an-early-biomarker-and-potential-therapeutic-target-of-runx-3-hypermethylation-in-breast-cancer-a-system-review-and-meta-analysis
#15
De-Guo Lu, Ying-Mei Ma, Ai-Ju Zhu, Yun-Wei Han
Runt-related transcription factor 3 (RUNX3) methylation plays an important role in the carcinogenesis of breast cancer (BC). However, the association between RUNX3 hypermethylation and significance of BC remains under investigation. The purpose of this study is to perform a meta-analysis and literature review to evaluate the clinicopathological significance of RUNX3 hypermethylation in BC. A comprehensive literature search was performed in Medline, Web of Science, EMBASE, Cochrane Library Database, CNKI and Google scholar...
November 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27825136/pubertal-and-adult-windows-of-susceptibility-to-a-high-animal-fat-diet-in-trp53-null-mammary-tumorigenesis
#16
Yirong Zhu, Mark D Aupperlee, Yong Zhao, Ying Siow Tan, Erin L Kirk, Xuezheng Sun, Melissa A Troester, Richard C Schwartz, Sandra Z Haslam
Premenopausal breast cancer is associated with increased animal fat consumption among normal weight, but not overweight women (Farvid et al., 2014). Our previous findings in obesity-resistant BALB/c mice similarly showed promotion of carcinogen-induced mammary tumorigenesis by a diet high in saturated animal fat (HFD). This effect was specific to pubertal versus adult HFD. This study identifies the effects of HFD during puberty versus adulthood in Trp53-null transplant BALB/c mice and investigates its mechanism of enhancing tumorigenesis...
November 4, 2016: Oncotarget
https://www.readbyqxmd.com/read/27821312/intrinsic-and-extrinsic-flaws-of-the-nomogram-predicting-bone-only-metastasis-in-women-with-early-breast-cancer-an-external-validation-study
#17
Lobna Ouldamer, Sofiane Bendifallah, Marie Chas, Laura Boivin, Lea Bedouet, Gilles Body, Marcos Ballester, Emile Daraï
BACKGROUND: The recently developed MDACC nomogram purports to predict the risk of bone-only metastasis in women with early breast carcinoma based on five clinical and pathological characteristics. We set out to externally validate and assess its robustness using a tertiary breast cancer centre database. METHODS: All consecutive women treated for early breast cancer in our centre between January 1989 and December 2013 and who had all the nomogram variables documented were eligible for analysis...
November 4, 2016: European Journal of Cancer
https://www.readbyqxmd.com/read/27816540/frequency-of-whole-breast-radiation-therapy-after-intraoperative-radiation-therapy-due-to-criteria-identified-by-lumpectomy
#18
Eric A Mellon, Amber Orman, Luis E Joya, Michael E Montejo, Christine Laronga, Susan J Hoover, M Catherine Lee, Nazanin Khakpour, Pamela F Kubal, Roberto Diaz
PURPOSE: For selected early breast cancers, intraoperative radiation therapy (IORT) at the time of lumpectomy can be an efficient alternative to fractionated whole breast radiation therapy (WBRT). However, some patients are later recommended WBRT after IORT due to surgical pathologic findings. To understand risk factor identification rates triggering WBRT recommendation, we analyzed adverse prognostic features based on multiple international criteria for suitability for accelerated partial breast irradiation...
November 2, 2016: Brachytherapy
https://www.readbyqxmd.com/read/27809747/mir-221-222-as-new-players-in-tamoxifen-resistance
#19
Gholamreza Karimi, Nafise Alamolhida, Javad Behravan, Fateme Mosaffa
Breast cancer is the most frequent cancer in women. Despite advances in early detection and treatment, it has the second highest mortality rate after lung cancer. Around 85% of breast carcinomas are ER+; thus, antiestrogens like tamoxifen are beneficial. Although, tamoxifen is useful for many patients, plenty of patients respond poorly to initial therapy or recurrence occurs in about 30% of cases, because tamoxifen resistance happens. Drug resistance remains a major clinical obstacle to successful treatment of breast cancer and more than 90% of unsuccessful treatments are because of acquired resistance and MultiDrug Resistance (MDR) is a major contributor...
November 2, 2016: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/27803959/accelerated-partial-breast-irradiation-with-external-beam-radiotherapy-first-results-of-the-german-phase%C3%A2-2-trial
#20
Oliver J Ott, Vratislav Strnad, Wilhelm Stillkrieg, Wolfgang Uter, Matthias W Beckmann, Rainer Fietkau
BACKGROUND AND PURPOSE: To evaluate the feasibility and efficacy of external beam three-dimensional (3D) conformal accelerated partial breast irradiation (APBI) for selected patients with early breast cancer. PATIENTS AND METHODS: Between 2011 and 2016, 72 patients were recruited for this prospective phase 2 trial. Patients were eligible for APBI if they had histologically confirmed breast cancer or pure ductal carcinoma in situ (DCIS), a tumor diameter ≤3 cm, clear resection margins ≥2 mm, no axillary lymph node involvement, no distant metastases, tumor bed clips, and were aged ≥50 years...
November 1, 2016: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
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