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https://www.readbyqxmd.com/read/29777796/identification-of-a-sodium-pump-na-k-atpase-%C3%AE-1-targeted-peptide-for-pet-imaging-of-breast-cancer
#1
Qian Wang, Shi-Bing Li, Yi-Ying Zhao, Da-Nian Dai, Hui Du, Yan-Zhu Lin, Jia-Cong Ye, Jing Zhao, Wei Xiao, Yan Mei, Yi-Tai Xiao, Shi-Chu Liu, Yan Li, Yun-Fei Xia, Er-Wei Song, Gang-Hua Tang, Wei-Guang Zhang, Zhi-Jiang Li, Xiao-Bin Zheng, De-Hai Cao, Man-Zhi Li, Qian Zhong, Zhong-Ping Chen, Chao-Nan Qian, Wei Fan, Guo-Kai Feng, Mu-Sheng Zeng
The sodium pump Na+ /K+ ATPase a1 subunit(NKA a1), an attractive cancer-related biomarker and therapeutic target, is closely related to the development and progression of several cancers including breast cancer. Currently, a NKA a1 inhibitor, UNBS1450, has already evidenced its great therapeutic potential in personalized cancer treatment. The ability of non-invasive imaging of NKA a1 expression would be useful for selecting cancer patients who may benefit from this drug. Here, we identified an S3 peptide that is specifically homed to breast cancer by phage display...
May 16, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29777785/psmd2-regulates-breast-cancer-cell-proliferation-and-cell-cycle-progression-by-modulating-p21-and-p27-proteasomal-degradation
#2
Yunhai Li, Jing Huang, Beilei Zeng, Dejuan Yang, Jiazheng Sun, Xuedong Yin, Mengqi Lu, Zhu Qiu, Weiyan Peng, Tingxiu Xiang, Hongzhong Li, Guosheng Ren
Alterations in the ubiquitin-proteasome system (UPS) and UPS-associated proteins have been implicated in the development of many human malignancies. In this study, we investigated the expression profiles of 797 UPS-related genes using HiSeq data from The Cancer Genome Atlas and identified that PSMD2 was markedly upregulated in breast cancer. High PSMD2 expression was significantly correlated with poor prognosis. Gene set enrichment analysis revealed that transcriptome signatures involving proliferation, cell cycle, and apoptosis were critically enriched in specimens with elevated PSMD2...
May 16, 2018: Cancer Letters
https://www.readbyqxmd.com/read/29777449/potential-of-bacillus-subtilis-lipopeptides-in-anti-cancer-i-induction-of-apoptosis-and-paraptosis-and-inhibition-of-autophagy-in-k562-cells
#3
Haobin Zhao, Lu Yan, Xiaoguang Xu, Chunmei Jiang, Junling Shi, Yawen Zhang, Li Liu, Shuzhen Lei, Dongyan Shao, Qingsheng Huang
The lipopeptide iturin from Bacillus subtilis has been found to have a potential inhibitory effect on breast cancer, alveolar adenocarcinoma, renal carcinoma, and colon adenocarcinoma. In this study, the potential of B. subtilis lipopeptides (a mixture of iturin homologues, concentration of 42.75%) to inhibit chronic myelogenous leukemia was evaluated using K562 myelogenous leukemia cells. The results showed that the lipopeptides could completely inhibit the growth of K562 at 100 μM, with an IC50 value of 65...
May 9, 2018: AMB Express
https://www.readbyqxmd.com/read/29777335/a-trisubstituted-pyrazole-derivative-reduces-dmba-induced-mammary-tumor-growth-in-rats-by-inhibiting-estrogen-receptor-%C3%AE-expression
#4
Hanumappa Ananda, Kothanahally S Sharath Kumar, Muddenahalli S Sudhanva, Shobith Rangappa, Kanchugarakoppal S Rangappa
Aberrant expression of estrogen receptor alpha (ER-α) is observed in many pathological complications like breast cancer, endometrial cancer, and in osteoporosis. ER-α plays a vital role in the initiation and progression of breast cancer and confers chemo and radioresistance to the cancer cells by upregulating expression of anti-apoptotic proteins. The synthetic pyrazole derivative 3-(1-(4-bromophenyl)-5-phenyl-1H-pyrazol-3-yl)pyridine (compound 5d) displays significant cytotoxicity against mammary carcinoma cells...
May 18, 2018: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/29776638/breast-carcinoma-updates-in-molecular-profiling-2018
#5
REVIEW
Sudeshna Bandyopadhyay, Martin H Bluth, Rouba Ali-Fehmi
The most significant contribution of molecular subtyping of breast carcinomas has been the identification of estrogen-positive and estrogen-negative tumor subtypes. Knowledge of genetic alterations in these tumors will help clinicians identify novel therapeutic targets. Understanding the progression pathways involved in the transition of in situ carcinoma to invasive carcinoma might lead to efficient risk stratification in these patients. The Cancer Genome Analysis Network has collected genomic and epigenomic data to provide comprehensive information regarding carcinogenesis and pathway interactions...
June 2018: Clinics in Laboratory Medicine
https://www.readbyqxmd.com/read/29776342/dna-methylation-signatures-of-breast-cancer-in-peripheral-t-cells
#6
Surabhi Parashar, David Cheishvili, Niaz Mahmood, Ani Arakelian, Imrana Tanvir, Haseeb Ahmed Khan, Richard Kremer, Catalin Mihalcioiu, Moshe Szyf, Shafaat A Rabbani
BACKGROUND: Immune surveillance acts as a defense mechanism in cancer, and its disruption is involved in cancer progression. DNA methylation reflects the phenotypic identity of cells and recent data suggested that DNA methylation profiles of T cells and peripheral blood mononuclear cells (PBMC) are altered in cancer progression. METHODS: We enrolled 19 females with stage 1 and 2, nine with stage 3 and 4 and 9 age matched healthy women. T cells were isolated from peripheral blood and extracted DNA was subjected to Illumina 450 K DNA methylation array analysis...
May 18, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29776156/realizations-of-highly-heterogeneous-collagen-networks-via-stochastic-reconstruction-for-micromechanical-analysis-of-tumor-cell-invasion
#7
Hanqing Nan, Long Liang, Guo Chen, Liyu Liu, Ruchuan Liu, Yang Jiao
Three-dimensional (3D) collective cell migration in a collagen-based extracellular matrix (ECM) is among one of the most significant topics in developmental biology, cancer progression, tissue regeneration, and immune response. Recent studies have suggested that collagen-fiber mediated force transmission in cellularized ECM plays an important role in stress homeostasis and regulation of collective cellular behaviors. Motivated by the recent in vitro observation that oriented collagen can significantly enhance the penetration of migrating breast cancer cells into dense Matrigel which mimics the intravasation process in vivo [Han et al...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29775779/metabolomics-in-breast-cancer-a-decade-in-review
#8
REVIEW
Amelia McCartney, Alessia Vignoli, Laura Biganzoli, Richard Love, Leonardo Tenori, Claudio Luchinat, Angelo Di Leo
Breast cancer (BC) is a heterogeneous disease which has been characterised and stratified by many platforms such as clinicopathological risk factors, genomic assays, computer generated models, and various "-omic" technologies. Genomic, proteomic and transcriptomic analysis in breast cancer research is well established, and metabolomics, which can be considered a downstream manifestation of the former disciplines, is of growing interest. The past decade has seen significant progress made within the field of clinical metabolomic BC research, with several groups demonstrating results with significant promise in the setting of BC screening and biological characterisation, as well as future potential for prognostic metabolomic biomarkers...
May 3, 2018: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29774524/%C3%AE-e-catenin-is-a-candidate-tumor-suppressor-for-the-development-of-e-cadherin-expressing-lobular-type-breast-cancer
#9
Jolien S de Groot, Max A K Rätze, Miranda van Amersfoort, Tanja Eisemann, Eva J Vlug, Mijanou T Niklaas, Suet-Feung Chin, Carlos Caldas, Paul J van Diest, Jos Jonkers, Johan de Rooij, Patrick W B Derksen
Mutational inactivation of E-cadherin (CDH1) is the main driver of invasive lobular breast cancer (ILC), although approximately 10-15% of all ILCs retain membrane-localized E-cadherin, despite the presence of an apparent non-cohesive and invasive lobular growth pattern. Given that ILC is dependent on constitutive actomyosin contraction for tumor development and progression, we used a combination of cell systems and in vivo experiments to investigate the consequences of α-catenin (CTNNA1) loss in the regulation of anchorage independence of non-invasive breast carcinoma...
May 17, 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29774083/engineered-microfluidic-bioreactor-for-examining-the-three-dimensional-breast-tumor-microenvironment
#10
Matthew Rogers, Tammy Sobolik, David K Schaffer, Philip C Samson, Andrew C Johnson, Philip Owens, Simona G Codreanu, Stacy D Sherrod, John A McLean, John P Wikswo, Ann Richmond
The interaction of cancer cells with the stromal cells and matrix in the tumor microenvironment plays a key role in progression to metastasis. A better understanding of the mechanisms underlying these interactions would aid in developing new therapeutic approaches to inhibit this progression. Here, we describe the fabrication of a simple microfluidic bioreactor capable of recapitulating the three-dimensional breast tumor microenvironment. Cancer cell spheroids, fibroblasts, and endothelial cells co-cultured in this device create a robust microenvironment suitable for studying in real time the migration of cancer cells along matrix structures laid down by fibroblasts within the 3D tumor microenvironment...
May 2018: Biomicrofluidics
https://www.readbyqxmd.com/read/29774079/long-non-coding-rnas-ac026904-1-and-uca1-a-one-two-punch-for-tgf-%C3%AE-induced-snai2-activation-and-epithelial-mesenchymal-transition-in-breast-cancer
#11
Guo-Yin Li, Wei Wang, Jian-Yong Sun, Bo Xin, Xiang Zhang, Ting Wang, Qian-Feng Zhang, Li-Bo Yao, Hua Han, Dai-Ming Fan, An-Gang Yang, Lin-Tao Jia, Lei Wang
Transforming growth factor-β (TGF-β) has received much attention as a major inducer of epithelial-mesenchymal transition (EMT) during cancer progression, mainly by activating a set of pleiotropic transcription factors including SNAI2/Slug. However, the involvement of long non-coding RNAs (lncRNAs) in TGF-β-induced Slug activation and EMT remains largely unknown. Methods: In this study, we used microarray analysis to compare lncRNA expression profiles between TGF-β treated and untreated breast cancer cells...
2018: Theranostics
https://www.readbyqxmd.com/read/29774072/twist-promotes-tumor-metastasis-in-basal-like-breast-cancer-by-transcriptionally-upregulating-ror1
#12
Jingying Cao, Xin Wang, Tao Dai, Yuanzhong Wu, Meifang Zhang, Renxian Cao, Ruhua Zhang, Gang Wang, Rou Jiang, Binhua P Zhou, Jian Shi, Tiebang Kang
Rationale: Twist is a key transcription factor for induction of epithelial-mesenchymal transition (EMT), which promotes cell migration, invasion, and cancer metastasis, confers cancer cells with stem cell-like characteristics, and provides therapeutic resistance. However, the functional roles and targeted genes of Twist in EMT and cancer progression remain elusive. Methods: The potential targeted genes of Twist were identified from the global transcriptomes of T47D/Twist cells by microarray analysis. EMT phenotype was detected by western blotting and immunofluorescence of marker proteins...
2018: Theranostics
https://www.readbyqxmd.com/read/29774071/molecular-detection-and-analysis-of-exosomes-using-surface-enhanced-raman-scattering-gold-nanorods-and-a-miniaturized-device
#13
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/29773994/biological-roles-of-aberrantly-expressed-glycosphingolipids-and-related-enzymes-in-human-cancer-development-and-progression
#14
REVIEW
Dinghao Zhuo, Xiang Li, Feng Guan
Glycosphingolipids (GSLs), which consist of a hydrophobic ceramide backbone and a hydrophilic carbohydrate residue, are an important type of glycolipid expressed in surface membranes of all animal cells. GSLs play essential roles in maintenance of plasma membrane stability, in regulation of numerous cellular processes (including adhesion, proliferation, apoptosis, and recognition), and in modulation of signal transduction pathways. GSLs have traditionally been classified as ganglio-series, lacto-series, or globo-series on the basis of their diverse types of oligosaccharide chains...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29773584/mechanisms-in-endocrinology-cell-cycle-regulation-in-adrenocortical-carcinoma
#15
Sofia Pereira, Mariana P Monteiro, Isabelle Bourdeau, Andre Lacroix, Duarte Pignatelli
Adrenocortical carcinomas are rather rare endocrine tumors that often have a poor prognosis. The reduced survival rate associated with these tumors is due to their aggressive biological behavior, combined with the scarcity of effective treatment options that are currently available. The recent identification of the genomic alterations present in ACC have provided further molecular mechanisms to develop consistent strategies for the diagnosis, prevention of progression and treatment of advanced ACCs. Taken together, molecular and genomic advances could be leading the way to develop personalized medicine in ACCs similarly to similar developments in lung or breast cancers...
May 17, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29773414/hypofractionated-whole-breast-irradiation-with-or-without-boost-in-elderly-patients-clinical-evaluation-of-an-italian-experience
#16
Maria Carmen De Santis, Francesca Bonfantini, Francesca Di Salvo, Alba Fiorentino, Michela Dispinzieri, Mariangela Caputo, Serena Di Cosimo, Gabriella Mariani, Massimiliano Gennaro, Vito Cosentino, Milena Sant, Emanuele Pignoli, Riccardo Valdagni, Laura Lozza
PURPOSE: To examine local control, disease-free survival (DFS), and toxicity in elderly (≥ 65 years) breast cancer patients treated with hypofractionated radiotherapy (hypo-RT) with or without a boost to the tumor bed. PATIENTS AND METHODS: The study was conducted on 752 patients treated from April 2009 to February 2017. Patients received 42.4 Gy in 16 daily fractions (2.65 Gy per fraction). A boost was only administered in cases of grade 3 primary tumor and close or positive margins...
April 22, 2018: Clinical Breast Cancer
https://www.readbyqxmd.com/read/29773227/de1sign-of-synthetic-extracellular-matrices-for-probing-breast-cancer-cell-growth-using-robust-cyctocompatible-nucleophilic-thiol-yne-addition-chemistry
#17
Laura J Macdougall, Katherine L Wiley, April M Kloxin, Andrew P Dove
Controlled, three-dimensional (3D) cell culture systems are of growing interest for both tissue regeneration and disease, including cancer, enabling hypothesis testing about the effects of microenvironment cues on a variety of cellular processes, including aspects of disease progression. In this work, we encapsulate and culture in three dimensions different cancer cell lines in a synthetic extracellular matrix (ECM), using mild and efficient chemistry. Specifically, harnessing the nucleophilic addition of thiols to activated alkynes, we have created hydrogel-based materials with multifunctional poly(ethylene glycol) (PEG) and select biomimetic peptides...
May 7, 2018: Biomaterials
https://www.readbyqxmd.com/read/29772993/shoulder-lesion-in-a-69-year-old-woman
#18
Andrew J Hayden, Srinivas Kolla, Adele L Boskey, Steven Burekhovich, Chuanyong Lu, Michael Stracher, Aditya V Maheshwari
Milwaukee Shoulder Syndrome (MSS) is a painful progressive arthropathy in which hydroxyapatite crystal deposition in synovial tissue induces lysosomal release of collagenase and neutral proteases. These enzymes are destructive to periarticular tissue, including the synovium, articular cartilage, rotator cuff muscles, and the intrasynovial cortical bone. MSS predominantly occurring in women (90%) over the age of 70 years of age with a clinical history marked by recurrent joint effusions and pain, which classically worsens at night...
2018: Journal of Long-term Effects of Medical Implants
https://www.readbyqxmd.com/read/29772459/tyrosine-kinase-inhibitors-for-brain-metastases-in-her2-positive-breast-cancer
#19
REVIEW
Renata Duchnowska, Sibylle Loibl, Jacek Jassem
Approximately 30-50% of advanced HER2-positive breast cancer patients will develop central nervous system (CNS) metastases, with an annual risk of around 10%, and a half of them will die from brain progression. An increased risk of brain metastases is also seen in patients with early HER2-positive breast cancer administered curative therapy. Brain metastases in HER2-positive breast cancer patients usually constitute the first site of recurrence. The administration of anti-HER2 monoclonal antibodies, trastuzumab and pertuzumab, considerably delays the onset of symptomatic brain disease: however, the limited penetration of these compounds into the CNS hinders their efficacy...
May 9, 2018: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/29771735/re-beta-blockers-and-improved-progression-free-survival-in-patients-with-advanced-her2-negative-breast-cancer
#20
Gitte Vrelits Sørensen, Deirdre P Cronin-Fenton, Henrik Toft Sørensen, Per Damkier, Bent Ejlertsen, Peer M Christiansen, Timothy L Lash, Thomas P Ahern
No abstract text is available yet for this article.
May 16, 2018: Epidemiology
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