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https://www.readbyqxmd.com/read/29236346/therapy-related-acute-myeloid-leukaemia-and-myelodysplastic-syndrome-in-victoria-australia-2003-2014
#1
Doen Ming Ong, Helen Farrugia, Andrew Wei
BACKGROUND: The burden of therapy-related acute myeloid leukaemia (tAML) / therapy-related myelodysplastic syndrome (tMDS) in Australia has not been characterized. METHODS: We analysed adults aged ≥20 years at diagnosis of acute myeloid leukaemia (AML) / myelodysplastic syndrome (MDS) reported to the Victorian Cancer Registry (VCR) between 2003-2014. RESULTS: 73/3,120 (2.3%) AML cases were classified tAML. tAML patients were younger than non-tAML patients at diagnosis (median age 66 vs...
December 13, 2017: Internal Medicine Journal
https://www.readbyqxmd.com/read/29236319/effects-of-long-non-coding-rna-host2-on-cell-migration-and-invasion-by-regulating-microrna-let-7b-in-breast-cancer
#2
Peng-Wei Lu, Lin Li, Fang Wang, Yuan-Ting Gu
The study intends to investigate the effects of long non-coding RNA HOST2 (lncRNA HOST2) on cell migration and invasion by regulating microRNA let-7b (let-7b) in breast cancer. Breast cancer and adjacent normal tissues were collected from 98 patients with breast cancer. Breast cancer MCF-7 cells were divided into the blank, negative control (NC), pcDNA3-Mock, siHOST2, let-7b inhibitor, pcDNA3-HOST2, let-7b mimic, pcDNA3-HOST2 + let-7b mimic and siHOST2 + let-7b inhibitor groups. RT-qPCR was used to detect the mRNA expressions of HOST2, let-7b and c-Myc...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236315/lnc-rna-snhg20-participated-in-proliferation-invasion-and-migration-of-breast-cancer-cells-via-mir-495
#3
Yan-Xing Guan, Zhan-Min Zhang, Xue-Zhong Chen, Qing Zhang, Shao-Zheng Liu, Yong-Lu Zhang
OBJECTIVE: To explore the mechanism of lnc SNHG20 in the regulation of proliferation, invasion and migration of breast cancer cells. MATERIALS AND METHODS: mRNA levels of SNHG20, miR-495 and HER2 were detected by qRT-PCR. Protein level of HER2 was measured by Western blot. Cell proliferation, invasion and migration were detected by CCK-8 assay, Boyden chamber assay and Transwell assay. The combination between SNHG20 and miR-495 was confirmed by RNA pull down assay...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236310/insulin-induces-an-emt-like-process-in-mammary-epithelial-cells-mcf10a
#4
Cecilia Rodriguez-Monterrosas, Ricardo Díaz-Aragon, Elizabeth Leal-Orta, Pedro Cortes-Reynosa, Eduardo Perez Salazar
Diabetes mellitus has been related with an increased risk of breast cancer, whereas it has been suggested that links between diabetes mellitus and cancer are hyperinsulinemia, insulin resistance, hyperglycemia and chronic inflammation induced by adipose tissue. Contribution of hyperinsulinemia to carcinogenesis is mediated through resistance to endogenous insulin and by exogenous insulin used in treatment. Epithelial to mesenchymal transition (EMT) is a process by which epithelial cells are transdifferentiated to a mesenchymal state that has been implicated in cancer progression...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236294/acute-myeloid-leukemia-and-myelodysplastic-syndrome-after-adjuvant-chemotherapy-a-population-based-study-among-older-breast-cancer-patients
#5
Aron S Rosenstock, Jiangong Niu, Sharon H Giordano, Hui Zhao, Antonio C Wolff, Mariana Chavez-MacGregor
BACKGROUND: Chemotherapy for early breast cancer is associated with a small risk of developing myelodysplastic syndrome (MDS) and/or acute myeloid leukemia (AML). The aim of this study was to determine the risk of developing AML or MDS after modern adjuvant chemotherapy in older breast cancer patients and to further define the risk of individual chemotherapy regimens. METHODS: Patients diagnosed with stage I to III breast cancer from 2003 to 2009 were identified in the Surveillance, Epidemiology, and End Results-Medicare and Texas Cancer Registry-Medicare linked databases...
December 13, 2017: Cancer
https://www.readbyqxmd.com/read/29236292/a-novel-report-of-mir-4301-induces-cell-apoptosis-by-negatively-regulating-drd2-expression-in-human-breast-cancer-cells
#6
Naghmeh Gholipour, Anna Ohradanova-Repic, Ghasem Ahangari
BACKGROUND: In several cancers, microRNA (miRNAs) play vital roles in tumour initiation, drug resistance and metastasis. The aim of this study was to examine the expression levels of miR-4301 in human breast cancer and investigate whether its potential roles involved targeting Dopamine receptor D2 (DRD2). METHODS: Real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) was also used to examine the expression levels of miR-4301 in human breast cancer cell lines MDA-MB-231, MCF-7 and SKBR3...
December 13, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29236235/potential-biomarkers-of-cdk4-6-inhibitors-in-hormone-receptor-positive-advanced-breast-cancer
#7
REVIEW
Hehui Fang, Doudou Huang, Fang Yang, Xiaoxiang Guan
PURPOSE: Cyclin D/cyclin-dependent kinase 4/6 (CDK4/6) complex inhibitors have recently been proven effective when combined with endocrine therapy in clinical trials. However, the clinical benefit from CDK4/6 inhibitor varied from different patients. In order to optimize the clinical application of CDK4/6 inhibitors, this review focuses on the potential biomarkers applicable to identify patients who will benefit the most from CDK4/6 inhibition. METHODS: We have summarized the clinical trials about addition of CDK4/6 inhibitors to endocrine therapy and reviewed literature currently available on the potential biomarkers in predicting efficacy of CDK4/6 inhibitors...
December 13, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29236174/oncotype-dx%C3%A2-in-breast-cancer-patients-clinical-experience-outcome-and-follow-up-a-case-control-study
#8
Michelle G Rath, Lorenz Uhlmann, Marita Fiedler, Joerg Heil, Michael Golatta, Christine Dinkic, Andre Hennigs, Sarah Schott, Veronika Ernst, Thorsten Koch, Christof Sohn, Cosima Brucker, Joachim Rom
PURPOSE: Breast cancer is the leading cause of death from cancer in women and the most common cancer in the world [1]. To date, many patients with estrogen-receptor-positive (ER+) breast cancer are overtreated with chemotherapy when the rationale for adjuvant chemotherapy is based on clinicopathologic parameters. Different studies were able to demonstrate that a 21-gene expression assay (Oncotype DX® Genomic Health, Redwood City, CA) can predict the benefit from adjuvant chemotherapy in ER+ breast cancers [2, 3] and provide additional prognostic information independent of clinicopathological features [4]...
December 13, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29236079/unexpected-binding-mode-of-a-potent-indeno-1-2-b-indole-type-inhibitor-of-protein-kinase-ck2-revealed-by-complex-structures-with-the-catalytic-subunit-ck2%C3%AE-and-its-paralog-ck2%C3%AE
#9
Jennifer Hochscherf, Dirk Lindenblatt, Benedict Witulski, Robin Birus, Dagmar Aichele, Christelle Marminon, Zouhair Bouaziz, Marc Le Borgne, Joachim Jose, Karsten Niefind
Protein kinase CK2, a member of the eukaryotic protein kinase superfamily, is associated with cancer and other human pathologies and thus an attractive drug target. The indeno[1,2-b]indole scaffold is a novel lead structure to develop ATP-competitive CK2 inhibitors. Some indeno[1,2-b]indole-based CK2 inhibitors additionally obstruct ABCG2, an ABC half transporter overexpressed in breast cancer and co-responsible for drug efflux and resistance. Comprehensive derivatization studies revealed substitutions of the indeno[1,2-b]indole framework that boost either the CK2 or the ABCG2 selectivity or even support the dual inhibition potential...
December 13, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/29235719/prevalence-and-sociodemographic-correlates-of-routine-breast-cancer-screening-practices-among-migrant-australian-women
#10
Michelle Lam, Cannas Kwok, Mi-Joung Lee
OBJECTIVE: To evaluate breast cancer screening (BCS) practice and explore the relationship between sociodemographic factors and breast awareness (BA), clinical breast examination (CBE) and mammography in migrant-Australian women. METHOD: Secondary analysis was performed on the pooled sample (n=1,744) from five cross-sectional studies of BCS rates among immigrant-Australian women, and the associated sociodemographic factors. RESULTS: Only 19% of women participated in routine BA, 27...
December 13, 2017: Australian and New Zealand Journal of Public Health
https://www.readbyqxmd.com/read/29235566/long-term-survival-outcomes-of-triple-receptor-negative-breast-cancer-survivors-who-are-disease-free-at-5-years-and-relationship-with-low-hormone-receptor-positivity
#11
S M Reddy, C H Barcenas, A K Sinha, L Hsu, S L Moulder, D Tripathy, G N Hortobagyi, V Valero
BACKGROUND: We counsel our triple-negative breast cancer (TNBC) patients that the risk of recurrence is highest in the first 5 years after diagnosis. However, there are limited data with extended follow-up on the frequency, characteristics, and predictors of late events. METHODS: We queried the MD Anderson Breast Cancer Management System database to identify patients with stage I-III TNBC who were disease free at 5 years from diagnosis. The Kaplan-Meier method was used to estimate yearly recurrence-free interval (RFI), recurrence-free survival (RFS), and distant relapse-free survival (DRFS), as defined by the STEEP criteria...
December 12, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/29235520/ubiquitin-conjugating-enzyme-e2t-ube2t-and-denticleless-protein-homolog-dtl-are-linked-to-poor-outcome-in-breast-and-lung-cancers
#12
Javier Perez-Peña, Verónica Corrales-Sánchez, Eitan Amir, Atanasio Pandiella, Alberto Ocana
Protein ubiquitination and degradation represent druggable vulnerabilities of cancer cells. We used gene expression and functional annotation analyses to identify genes in the ubiquitin pathway which are differentially expressed between normal breast and basal-like tumors. With this approach we identified 16 ubiquitin related genes overexpressed in basal-like breast cancers compared with normal breast. We then explored the association between these genes and outcomes using the KMPlotter online tool. Two genes, the ubiquitin-conjugating enzyme E2T (UBE2T) and the denticleless protein homolog (DTL) were overexpressed and linked with detrimental outcome in basal-like and luminal breast cancer patients...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29235516/leveraging-ectopic-hsp90-expression-to-assay-the-presence-of-tumor-cells-and-aggressive-tumor-phenotypes-in-breast-specimens
#13
Brian Crouch, Helen Murphy, Stella Belonwu, Amy Martinez, Jennifer Gallagher, Allison Hall, Mary Scott Soo, Marianne Lee, Philip Hughes, Timothy Haystead, Nirmala Ramanujam
Hsp90 has been studied extensively as a therapeutic target in breast cancer in pre-clinical and clinical trials, demonstrating a variety of roles in metastatic progression. The evidence to date suggests a compelling opportunity to leverage attributes of Hsp90 expression beyond therapeutics with potential applications in breast cancer diagnosis, prognosis, and recurrence risk assessment. In this study, we developed a completely non-destructive strategy using HS-27, a fluorescently-tethered Hsp90 inhibitor, to assay Hsp90 expression on intact tissue specimens with comparable contrast to in vivo administration routes, and demonstrate the feasibility of our approach in breast cancer patients...
December 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29235476/breast-cancer-metastasis-suppressor-otud1-deubiquitinates-smad7
#14
Zhengkui Zhang, Yao Fan, Feng Xie, Hang Zhou, Ke Jin, Li Shao, Wenhao Shi, Pengfei Fang, Bing Yang, Hans van Dam, Peter Ten Dijke, Xiaofeng Zheng, Xiaohua Yan, Junling Jia, Min Zheng, Jin Jin, Chen Ding, Sheng Ye, Fangfang Zhou, Long Zhang
Metastasis is the main cause of death in cancer patients. TGF-β is pro-metastatic for malignant cancer cells. Here we report a loss-of-function screen in mice with metastasis as readout and identify OTUD1 as a metastasis-repressing factor. OTUD1-silenced cancer cells show mesenchymal and stem-cell-like characteristics. Further investigation reveals that OTUD1 directly deubiquitinates the TGF-β pathway inhibitor SMAD7 and prevents its degradation. Moreover, OTUD1 cleaves Lysine 33-linked poly-ubiquitin chains of SMAD7 Lysine 220, which exposes the SMAD7 PY motif, enabling SMURF2 binding and subsequent TβRI turnover at the cell surface...
December 13, 2017: Nature Communications
https://www.readbyqxmd.com/read/29235371/hybrid-2d-3d-quantitative-structure-activity-relationship-and-modeling-studies-perspectives-of-pepstatin-a-analogs-as-cathepsin-d-inhibitors
#15
Olayide A Arodola, Mahmoud Es Soliman
AIM: Cathepsin D, one of the attractive targets in the treatment of breast cancer, has been implicated in HIV neuropathogenesis with potential proteolytic effects on chemokines. Methodology/result: Diverse modeling tools were used to reveal the key structural features affecting the inhibitory activities of 78 pepstatin A analogs. Analyses were performed to investigate the stability, rationality and fluctuation of the analogs. Results showed a clear correlation between the experimental and predicted activities of the analogs as well as the variation in their activities relative to structural modifications...
December 13, 2017: Future Medicinal Chemistry
https://www.readbyqxmd.com/read/29235045/axillary-staging-for-breast-cancer-during-pregnancy-feasibility-and-safety-of-sentinel-lymph-node-biopsy
#16
S N Han, F Amant, E H Cardonick, S Loibl, F A Peccatori, O Gheysens, C A Sangalli, V Nekljudova, K Dahl Steffensen, M Mhallem Gziri, C P Schröder, C A R Lok, A Verest, P Neven, A Smeets, G Pruneri, M Cremonesi, O Gentilini
BACKGROUND: Safety of sentinel lymph node (SLN) biopsy for breast cancer during pregnancy is insufficiently explored. We investigated efficacy and local recurrence rate in a large series of pregnant patients. PATIENTS AND METHODS: Women diagnosed with breast cancer who underwent SLN biopsy during pregnancy were identified from the International Network on Cancer, Infertility and Pregnancy, the German Breast Group, and the Cancer and Pregnancy Registry. Chart review was performed to record technique and outcome of SLN biopsy, locoregional and distant recurrence, and survival...
December 12, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29235044/worse-survival-after-breast-cancer-in-women-with-anorexia-nervosa
#17
Annet Bens, Fotios C Papadopoulos, Eero Pukkala, Anders Ekbom, Mika Gissler, Lene Mellemkjær
PURPOSE: A history of anorexia nervosa has been associated with a reduced risk of developing breast cancer. We investigated survival after breast cancer among women with a prior anorexia nervosa diagnosis compared with women in a population comparison group. METHODS: This register-based study included combined data from Sweden, Denmark and Finland. A total of 76 and 1462 breast cancer cases identified among 22,654 women with anorexia nervosa and 224,619 women in a population comparison group, respectively, were included in the study...
December 12, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29235043/effects-of-physical-exercise-on-markers-of-inflammation-in-breast-cancer-patients-during-adjuvant-chemotherapy
#18
Jonna K van Vulpen, Martina E Schmidt, Miranda J Velthuis, Joachim Wiskemann, Andreas Schneeweiss, Roel C H Vermeulen, Nina Habermann, Cornelia M Ulrich, Petra H M Peeters, Elsken van der Wall, Anne M May, Karen Steindorf
PURPOSE: Exercise has been shown to reduce fatigue during cancer treatment. Hypothesized mechanisms include inflammatory pathways. Therefore, we investigated effects of exercise on markers of inflammation in breast cancer patients during adjuvant chemotherapy. METHODS: We pooled data from two randomized controlled exercise intervention trials with breast cancer patients during adjuvant chemotherapy (n = 130), which had previously shown beneficial effects of exercise on fatigue...
December 12, 2017: Breast Cancer Research and Treatment
https://www.readbyqxmd.com/read/29234899/correction-to-ten-year-results-of-accelerated-hypofractionated-adjuvant-whole-breast-radiation-with-concomitant-boost-to-the-lumpectomy-cavity-after-conserving-surgery-for-early-breast-cancer
#19
Domenico Cante, Edoardo Petrucci, Piera Sciacero, Cristina Piva, Silvia Ferrario, Silvia Bagnera, Sebastiano Patania, Guido Mondini, Massimo Pasquino, Valeria Casanova Borca, Giorgio Vellani, Maria Rosa La Porta, Pierfrancesco Franco
An error inadvertently occurred in the discussion of the original publication when citing the local relapse rates of the EORTC 22881-10882 trial ('boost vs no boost trial').
December 12, 2017: Medical Oncology
https://www.readbyqxmd.com/read/29234814/hormone-therapy-for-the-primary-prevention-of-chronic-conditions-in-postmenopausal-women-us-preventive-services-task-force-recommendation-statement
#20
David C Grossman, Susan J Curry, Douglas K Owens, Michael J Barry, Karina W Davidson, Chyke A Doubeni, John W Epling, Alex R Kemper, Alex H Krist, Ann E Kurth, C Seth Landefeld, Carol M Mangione, Maureen G Phipps, Michael Silverstein, Melissa A Simon, Chien-Wen Tseng
Importance: Menopause occurs at a median age of 51.3 years, and the average US woman who reaches menopause is expected to live another 30 years. The prevalence and incidence of most chronic conditions, such as coronary heart disease, dementia, stroke, fractures, and breast cancer, increase with age; however, the excess risk for these conditions that can be attributed to menopause alone is uncertain. Since the publication of findings from the Women's Health Initiative that hormone therapy use is associated with serious adverse health effects in postmenopausal women, use of menopausal hormone therapy has declined...
December 12, 2017: JAMA: the Journal of the American Medical Association
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