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https://www.readbyqxmd.com/read/28732389/loss-of-sun2-promotes-the-progression-of-prostate-cancer-by-regulating-fatty-acid-oxidation
#1
Cheng Yajun, Ye Chen, Li Xiaosa, Wang Xiao, Chen Jia, Wang Zhong, Xu Bin
The role of Sun2 has been described by previous studies in various types of cancers, including breast cancer and lung cancer. However, its role and potential molecular mechanism in the progression of prostate cancer have not been fully elucidated. In the present study, we found that Sun2 expression was reduced in prostate cancer tissues compared with paired normal tissues, and that low expression of Sun2 was significantly correlated with Higher Gleason scores, postoperative T stage (pT), Lymph nodal invasion and Clinical pathological stages...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732387/the-micrornas-mir-200b-3p-and-mir-429-5p-target-the-limk1-cfl1-pathway-to-inhibit-growth-and-motility-of-breast-cancer-cells
#2
Dengfeng Li, Hong Wang, Hongming Song, Hui Xu, Bingkun Zhao, Chenyang Wu, Jiashu Hu, Tianqi Wu, Dan Xie, Junyong Zhao, Qiang Shen, Lin Fang
Triple-negative breast cancer (TNBC) has the worst prognosis of all subtypes of breast cancer (BC), with limited options for conventional therapy and no targeted therapies. MicroRNAs (miRNAs) are small noncoding RNAs that negatively regulate gene expression. In this study, we aimed to determine whether two members of the miR-200 family, miR-200b-3p and miR-429-5p, are involved in BC cell proliferation and motility and to elucidate their target genes and pathways. We performed a meta-analysis that reveals down-regulated expression of miR-200b-3p and miR-429-5p in BC tissues and cell lines, consistent with a lower expression of miR-200b-3p and miR-429-5p in MDA-MB-231 and HCC1937 cells than in MCF-7 and MCF-10 cells...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732369/efficacy-and-safety-of-accelerated-partial-breast-irradiation-a-meta-analysis-of-published-randomized-studies
#3
Gengchun Liu, Zhongyi Dong, Baqun Huang, Yuelong Liu, Yan Tang, Qing Li, Yihui Zhu
BACKGROUND AND PURPOSE: Accelerated partial breast irradiation (APBI) technology has theoretical advantages in comparison with traditional adjuvant radiation therapy (whole-breast irradiation; WBI) after breast-conserving surgery. However, published randomized controlled trials have shown inconsistent outcomes. Therefore, a comprehensive assessment of the effectiveness and safety of APBI technology is needed. RESULTS: A total of 7 studies of 7452 patients were included in this analysis...
July 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732355/checkpoint-kinase-1-inhibition-sensitises-transformed-cells-to-dihydroorotate-dehydrogenase-inhibition
#4
Stéphanie Arnould, Geneviève Rodier, Gisèle Matar, Charles Vincent, Nelly Pirot, Yoann Delorme, Charlène Berthet, Yoan Buscail, Jean Yohan Noël, Simon Lachambre, Marta Jarlier, Florence Bernex, Hélène Delpech, Pierre Olivier Vidalain, Yves L Janin, Charles Theillet, Claude Sardet
Reduction in nucleotide pools through the inhibition of mitochondrial enzyme dihydroorotate dehydrogenase (DHODH) has been demonstrated to effectively reduce cancer cell proliferation and tumour growth. The current study sought to investigate whether this antiproliferative effect could be enhanced by combining Chk1 kinase inhibition. The pharmacological activity of DHODH inhibitor teriflunomide was more selective towards transformed mouse embryonic fibroblasts than their primary or immortalised counterparts, and this effect was amplified when cells were subsequently exposed to PF477736 Chk1 inhibitor...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732351/tropomyosin-isoform-tpm2-1-regulates-collective-and-amoeboid-cell-migration-and-cell-aggregation-in-breast-epithelial-cells
#5
HyeRim Shin, Dayoung Kim, David M Helfman
Metastasis dissemination is the result of various processes including cell migration and cell aggregation. These processes involve alterations in the expression and organization of cytoskeletal and adhesion proteins in tumor cells. Alterations in actin filaments and their binding partners are known to be key players in metastasis. Downregulation of specific tropomyosin (Tpm) isoforms is a common characteristic of transformed cells. In this study, we examined the role of Tpm2.1 in non-transformed MCF10A breast epithelial cells in cell migration and cell aggregation, because this isoform is downregulated in primary and metastatic breast cancer as well as various breast cancer cell lines...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732347/histone-demethylase-jmjd2c-epigenetic-regulators-in-tumors
#6
REVIEW
Chengcheng Zhang, Zhongqi Wang, Qing Ji, Qi Li
Histone methylation is one of the major epigenetic modifications, and various histone methylases and demethylases participate in the epigenetic regulating. JMJD2C has been recently identified as one of the histone lysine demethylases. As one member of the Jumonji-C histone demethylase family, JMJD2C has the ability to demethylate tri- or di-methylated histone 3 and 2 in either K9 (lysine residue 9) or K36 (lysine residue 36) sites by an oxidative reaction, thereby affecting heterochromatin formation, genomic imprinting, X-chromosome inactivation, and transcriptional regulation of genes...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28732325/epidemiology-and-pathophysiology-of-pregnancy-associated-breast-cancer-a-review
#7
REVIEW
Rossana Ruiz, Carmen Herrero, Kathrin Strasser-Weippl, Diego Touya, Jessica St Louis, Alexandra Bukowski, Paul E Goss
The interactions between pregnancy and breast cancer (BC) are complex. Overall, parity is associated with long-term protective effects against BC, however in a small group of susceptible patients, pregnancy can lead to the development of a form of BC with a particularly poor prognosis. Pregnancy-associated breast cancer (PABC) remains an under-studied but important and growing clinical problem worldwide. Several aspects of PABC, including risk factors and mechanisms involved in its occurrence and aggressiveness, are incompletely understood...
July 18, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28732324/anti-m%C3%A3-llerian-hormone-amh-levels-in-premenopausal-breast-cancer-patients-treated-with-taxane-based-adjuvant-chemotherapy-a-translational-research-project-of-the-success-a-study
#8
E K Trapp, J Steidl, B Rack, M S Kupka, U Andergassen, J Jückstock, A Kurt, T Vilsmaier, A de Gregorio, N de Gregorio, M Tzschaschel, C Lato, A Polasik, H Tesch, A Schneeweiss, M W Beckmann, P A Fasching, W Janni, V Müller
BACKGROUND: Premenopausal women undergoing chemotherapy are at high risk for premature ovarian failure and its long-term consequences. Data on potential markers to evaluate ovarian reserve pre- and posttreatment are limited. Anti-Müllerian hormone (AMH) known for ovarian reserve in reproductive medicine could be a surrogate marker and was assessed in premenopausal breast cancer patients of the SUCCESS A study (EUDRA-CT no. 2005-000490-21). METHODS: We identified 170 premenopausal patients, age ≤ 40 years at trial entry, who received FEC-Doc as taxane-anthracylince based chemotherapy...
July 18, 2017: Breast: Official Journal of the European Society of Mastology
https://www.readbyqxmd.com/read/28732311/solid-and-aqueous-magnetoliposomes-as-nanocarriers-for-a-new-potential-drug-active-against-breast-cancer
#9
Ana Rita O Rodrigues, Pedro M F Mendes, Pedro M L Silva, V A Machado, Bernardo G Almeida, J P Araújo, Maria-João R P Queiroz, Elisabete M S Castanheira, Paulo J G Coutinho
Iron oxide nanoparticles, with diameters around 12nm, were synthesized by coprecipitation method. The magnetic properties indicate a superparamagnetic behavior with a coercive field of 9.7Oe and a blocking temperature of 118K. Both aqueous and solid magnetoliposomes containing magnetite nanoparticles have sizes below 150nm, suitable for biomedical applications. Interaction between both types of magnetoliposomes and models of biological membranes was proven. A new antitumor compound, a diarylurea derivative of thienopyridine, active against breast cancer, was incorporated in both aqueous and solid magnetoliposomes, being mainly located in the lipid membrane...
July 8, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28732081/il-6-variant-is-associated-with-metastasis-in-breast-cancer-patients
#10
Chike O Abana, Brian S Bingham, Ju Hwan Cho, Amy J Graves, Tatsuki Koyama, Robert T Pilarski, A Bapsi Chakravarthy, Fen Xia
INTRODUCTION: Although tumor metastases remain significant drivers of mortality, the genetic factors that increase the risks of metastases are not fully identified. Interleukin 6 (IL-6) has emerged as an important factor in breast cancer progression with IL-6 single nucleotide polymorphism (SNP) variants shown to affect survival. We hypothesized that SNPs of the IL-6 promoter at rs1800795 in breast cancer patients are associated with distant metastases. METHODS: We performed an initial case-control study using Vanderbilt University Medical Center's BioVU, a genomic biobank linked to de-identified electronic medical records in the Synthetic Derivative database, to identify germline SNPs that may predict the development of metastatic disease to any site from any solid tumor including breast cancer...
2017: PloS One
https://www.readbyqxmd.com/read/28732040/perceptions-of-arab-men-regarding-female-breast-cancer-screening-examinations-findings-from-a-middle-east-study
#11
Tam Truong Donnelly, Al-Hareth Al-Khater, Salha Bujassoum Al-Bader, Mohamed Ghaith Al-Kuwari, Mariam Ali Abdul Malik, Nabila Al-Meer, Rajvir Singh
OBJECTIVES: In the Middle East, Qatar in particular, the incidence of breast cancer has substantially increased in recent years, and is expected to double by 2030. This diagnosis also occurs at a later stage in the disease. Early detection along with proper treatment reduces radical mastectomy and mortality rates, yet only one-third of Arab women in Qatar participate in breast cancer screening (BCS) activities of any sort. Many women in the conservative Qatari society rely on male family members for support and protection...
2017: PloS One
https://www.readbyqxmd.com/read/28732031/breast-tissue-ablation-with-irreversible-electroporation-in-rabbits-a-safety-and-feasibility-study
#12
Wenlong Zhang, Wanning Wang, Wei Chai, Xiaomei Luo, Jiannan Li, Jian Shi, Liqi Bi, Lizhi Niu
BACKGROUND AND AIM: Irreversible electroporation (IRE) was confirmed to control several solid tumors effectively in vivo. Our preclinical study aimed to assess the feasibility and safety of IRE in the breast of rabbit. METHODS: Thirty New Zealand white rabbits were randomly divided into 3 groups of 10 rabbits (control group, IRE group A, and B). Two mono-electrode needles were inserted into the breast tissue by percutaneous puncture. Electrocardiogram and vital signs were monitored before, during, and after ablation...
2017: PloS One
https://www.readbyqxmd.com/read/28731946/treatment-minimization-in-older-patients-with-early-stage-breast-cancer
#13
Tara M Hansen, Richard C Zellars
The management of early-stage breast cancer in older patients is complex and requires a careful balance of the risk of cancer death with the competing risks of comorbidities and treatment-related toxicity in women with largely favorable disease. As the US population continues to age, oncologists will increasingly encounter this clinical challenge. Several strategies involving each core component of breast cancer therapy have been investigated to minimize treatment in these patients while still maintaining acceptable outcomes...
July 2017: Cancer Journal
https://www.readbyqxmd.com/read/28731562/relative-validity-of-a-brief-fat-and-fibre-behaviour-questionnaire-in-a-population-of-overweight-and-obese-breast-cancer-survivors-a-note-of-caution
#14
Megan E Whelan, Elisabeth A H Winkler, Elizabeth G Eakin, Marina M Reeves
AIM: Dietary intake assessment is often difficult in research contexts because of time and resource constraints and participant burden. Valid, reliable and brief assessments of dietary behaviour are needed. Additionally, examination of instrument performance in a variety of populations is needed. This study assessed relative validity and responsiveness to change of the Fat and Fibre Behaviour Questionnaire (FFBQ) in a population of breast cancer survivors compared with dietary intake measured by 24-hour recalls...
February 2017: Nutrition & Dietetics: the Journal of the Dietitians Association of Australia
https://www.readbyqxmd.com/read/28731491/patient-satisfaction-and-acceptance-of-their-totally-implanted-central-venous-catheter-a-french-prospective-multicenter-study
#15
Pierre-Yves Marcy, Renaud Schiappa, Jean-Marc Ferrero, Christian Dahlet, Olivier Brenet, Gabriel Yazbec, Pierre-Yves Dubois, Bernard Salm, Yves Fouche, Veronique Mari, Marion Montastruc, Nathalie Lebrec, Benoit Ancel, Nicolas Paillocher, Denis Dupoiron, Olivier Rangeard, Jocelyn Gal, Marc Ettaiche, Yann Chateau, Emmanuel Chamorey
INTRODUCTION: Most cancer patients require a totally implanted central venous catheter (TIVAD) for their treatment. In a previous study, we developed and validated a questionnaire dubbed QASICC (Questionnaire for Acceptance of, and Satisfaction with, Implanted Central Venous Catheter) assessing patient satisfaction with, and acceptance of, their TIVAD. In the present study, we conducted a large, prospective, multicenter study in cancer patients aimed to analyze factors that could influence patients' acceptance of, and satisfaction with, their device...
July 19, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28731284/the-rna-binding-protein-hur-inhibits-expression-of-ccl5-and-limits-recruitment-of-macrophages-into-tumors
#16
Thilo F Brauß, Sofia Winslow, Sebastian Lampe, Anica Scholz, Andreas Weigert, Nathalie Dehne, Kristoffer von Stedingk, Tobias Schmid, Bernhard Brüne
The RNA-binding protein HuR promotes tumor growth by affecting proliferation, metastasis, apoptosis, and angiogenesis. Although immune cells, especially tumor-associated macrophages, are critical components of the tumor stroma, the influence of HuR in tumors on the recruitment of immune cells remains poorly understood. In the present study, we therefore aimed to elucidate the impact of tumor cell HuR on the interaction between tumor cells and macrophages. To this end, we stably depleted HuR in human MCF-7 breast cancer cells...
July 21, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28731186/let-7c-5p-inhibits-cell-proliferation-and-induces-cell-apoptosis-by-targeting-ercc6-in-breast-cancer
#17
Xiaonan Fu, Xuan Mao, Yuxiang Wang, Xianfeng Ding, Yongfeng Li
In this study, we found that let-7c-5p expression was clearly downregulated in breast cancer tissues compared with that of corresponding adjacent tissues. Furthermore, overexpression of let-7c-5p in MCF-7 breast cancer cells could significantly inhibit cell proliferation and induce cell apoptosis. The target genes of let-7c-5p were predicted by the way of bioinformatics, and validated by dual luciferase reporter assay and western blotting demonstrating that excision repair cross complementing 6 (ERCC6) gene was a direct target...
July 19, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731185/snail-maintains-metastatic-potential-cancer-stem-like-properties-and-chemoresistance-in-mesenchymal-mouse-breast-cancer-tubo%C3%A2-p2j-cells
#18
Sun Young Ma, Jin-Hee Park, Hana Jung, Sung-Min Ha, Yeonye Kim, Dong Hyen Park, Deuk Hee Lee, Sooyong Lee, In-Ho Chu, So Young Jung, Il-Hwan Kim, Il-Whan Choi, Chang Soo Choi, Saegwang Park
Snail, a zinc-finger transcriptional repressor of E-cadherin expression, is one of the key inducers of epithelial-mesenchymal transition (EMT) in epithelial cancer. In breast cancer, EMT has been associated with malignancies, including metastasis, cancer stem-like properties, and resistance to chemotherapy and radiotherapy. In this study, we analysed the role of Snail in the highly metastatic mesenchymal TUBO‑P2J mouse breast cancer cells, by loss of function using short hairpin RNA. Though silencing Snail did not restore the E-cadherin expression or induce morphological changes, Snail silencing significantly ablated in vitro and in vivo metastatic potentials...
July 18, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28731166/screening-of-the-prognostic-targets-for-breast-cancer-based-co-expression-modules-analysis
#19
Huijuan Liu, Hui Ye
The purpose of the present study was to screen the prognostic targets for breast cancer based on a co-expression modules analysis. The microarray dataset GSE73383 was downloaded from the Gene Expression Omnibus (GEO) database, including 15 breast cancer samples with good prognosis and 9 breast cancer samples with poor prognosis. The differentially expressed genes (DEGs) were identified with the limma package. The Database for Annotation, Visualization and Integrated Discovery was used to perform Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis...
July 21, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28731159/ganoderic-acid-a-inhibits-proliferation-and-invasion-and-promotes-apoptosis-in-human-hepatocellular-carcinoma-cells
#20
Xu Wang, Di Sun, Jiandong Tai, Lei Wang
Ganoderic acid A (GA‑A), a triterpenoid, has been demonstrated to suppress cell proliferation in various cancers, including breast cancer and osteosarcoma. However, its effect on human hepatocellular carcinoma (HCC) remains to be elucidated. The present study aimed to investigate the effect of GA‑A on HCC cells in vitro. The HepG2 and SMMC7721 human HCC cell lines were treated with differing concentrations of GA‑A for 24, 48 and 72 h. The cell growth rate, cell cycle and apoptosis, migration and invasion were determined using a Cell Counting Kit‑8, flow cytometry and transwell assays, respectively...
July 21, 2017: Molecular Medicine Reports
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