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https://www.readbyqxmd.com/read/28651425/expression-of-gfr%C3%AE-3-correlates-with-tumor-progression-and-promotes-cell-metastasis-in-urothelial-carcinoma
#1
Yang Yan, Meng-Nan Liu, Bin Yang, Jiang Geng, Jun-Hua Zheng, Xu-Dong Yao
BACKGROUND: Urothelial carcinoma (UC) is a major heath problem in the general population. We aimed to evaluate the function of GFRα3 and unravel its underlying molecular mechanism to develop novel treatment options equivalent to UC. METHODS: To evaluate the function of GFRα3, a group of 60 pairs of UC patients were recruited in for this study. UC tissues and their adjacent normal control tissues (NCTs) were collected between 2012 and 2015. We used immunohistochemistry to analyze the correlation between GFRα3 expression and clinicopathologic variables and patient survival...
June 23, 2017: Minerva Urologica e Nefrologica, the Italian Journal of Urology and Nephrology
https://www.readbyqxmd.com/read/28651208/relationship-between-thms-ndma-formation-potential-and-molecular-weight-of-organic-compounds-for-source-and-treated-water-in-shanghai-china
#2
Dong An, Bin Gu, Sainan Sun, Han Zhang, Yanan Chen, Huifeng Zhu, Jian Shi, Jun Tong
Molecular weight (MW) distributions in source and treated water in Shanghai, China were investigated to understand the relationship between trihalomethanes formation potential/N-nitrosodimethylamine formation potential (THMFP/NDMAFP) and dissolved organic carbon (DOC) for different MW ranges (<1K, 1-10K, 10-30K, >30KDa). The result of MW distributions in source water indicated a relationship between THMFP/NDMAFP and DOC such that DOC for <1K and 1-30KDa DOC were linearly related to THMFP and NDMAFP, respectively...
June 23, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28651105/heterogeneous-epigenetic-regulation-of-hace1-in-burkitt-lymphoma-derived-cells
#3
Abdelilah Bouzelfen, Hafid Kora, Marion Alcantara, Philippe Bertrand, Jean-Baptiste Latouche, Fabrice Jardin
We examined the consequences of 3-deazaneplanocin A (DZNep) on HACE1 expression in human Burkitt- Lymphoma-derived cells to investigate fundamental molecular mechanisms that control its expression. We treated the human Burkitt- Lymphoma-derived cells lines Ramos and Raji with DZNep and examined HACE1 mRNA expression by RT-PCR. We also studied the effect of DZNep on the methylation of lysine 9 and 27 of histone 3 (H3K27me3 and H3K9me2) associated with the CpG88 and CpG177 islands of the HACE1 promoters by chromatin immunoprecipitation and quantitative PCR...
June 16, 2017: Leukemia Research
https://www.readbyqxmd.com/read/28651018/meta-analysis-of-mirna-expression-profiles-for-prostate-cancer-recurrence-following-radical-prostatectomy
#4
Elnaz Pashaei, Elham Pashaei, Maryam Ahmady, Mustafa Ozen, Nizamettin Aydin
BACKGROUND: Prostate cancer (PCa) is a leading reason of death in men and the most diagnosed malignancies in the western countries at the present time. After radical prostatectomy (RP), nearly 30% of men develop clinical recurrence with high serum prostate-specific antigen levels. An important challenge in PCa research is to identify effective predictors of tumor recurrence. The molecular alterations in microRNAs are associated with PCa initiation and progression. Several miRNA microarray studies have been conducted in recurrence PCa, but the results vary among different studies...
2017: PloS One
https://www.readbyqxmd.com/read/28650989/tumor-tissue-protein-signatures-reflect-histological-grade-of-breast-cancer
#5
Petter Skoog, Mattias Ohlsson, Mårten Fernö, Lisa Rydén, Carl A K Borrebaeck, Christer Wingren
Histological grade is one of the most commonly used prognostic factors for patients diagnosed with breast cancer. However, conventional grading has proven technically challenging, and up to 60% of the tumors are classified as histological grade 2, which represents a heterogeneous cohort less informative for clinical decision making. In an attempt to study and extend the molecular puzzle of histologically graded breast cancer, we have in this pilot project searched for additional protein biomarkers in a new space of the proteome...
2017: PloS One
https://www.readbyqxmd.com/read/28650961/mfpred-rapid-and-accurate-prediction-of-protein-peptide-recognition-multispecificity-using-self-consistent-mean-field-theory
#6
Aliza B Rubenstein, Manasi A Pethe, Sagar D Khare
Multispecificity-the ability of a single receptor protein molecule to interact with multiple substrates-is a hallmark of molecular recognition at protein-protein and protein-peptide interfaces, including enzyme-substrate complexes. The ability to perform structure-based prediction of multispecificity would aid in the identification of novel enzyme substrates, protein interaction partners, and enable design of novel enzymes targeted towards alternative substrates. The relatively slow speed of current biophysical, structure-based methods limits their use for prediction and, especially, design of multispecificity...
June 26, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28650953/de-novo-paternal-fbn1-mutation-detected-in-embryos-before-implantation
#7
Shuling Wang, Ziru Niu, Hui Wang, Minyue Ma, Wei Zhang, Shu Fang Wang, Jun Wang, Hong Yan, Yifan Liu, Na Duan, Xiandong Zhang, Yuanqing Yao
BACKGROUND Marfan syndrome (MFS) is an autosomal dominant disease caused by mutations in the Fibrillin (FBN)1 gene and characterized by disorders in the cardiovascular, skeletal, and visual systems. The diversity of mutations and phenotypic heterogeneity of MFS make prenatal molecular diagnoses difficult. In this study, we used pre-implantation genetic diagnosis (PGD) to identify the pathogenic mutation in a male patient with MFS and to determine whether his offspring would be free of the disease. MATERIAL AND METHODS The history and pedigree of the proband were analyzed...
June 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28650848/ser-thr-protein-kinase-b2-nadph-oxidase-2-signaling-in-thromboinflammation
#8
Jing Li, Jaehyung Cho
PURPOSE OF REVIEW: Interactions between neutrophils and platelets contribute to the progression of thromboinflammatory disease. However, the regulatory mechanism governing these interactions is poorly understood. The present review focuses on the crucial role of Ser/Thr protein kinase B (AKT)2-NADPH oxidase 2 (NOX2) signaling in regulating neutrophil and platelet activation and their heterotypic interactions under thromboinflammatory conditions. RECENT FINDINGS: Growing evidence has shown that platelets, leukocytes, and blood coagulation need to be considered to treat thromboinflammatory disease in which inflammation and thrombosis occur concurrently...
June 24, 2017: Current Opinion in Hematology
https://www.readbyqxmd.com/read/28650662/glucose-restriction-combined-with-autophagy-inhibition-and-chemotherapy-in-hct-116-spheroids-decreases-cell-clonogenicity-and-viability-regulated-by-tumor-suppressor-genes
#9
Monica M Schroll, Gabriel J LaBonia, Katelyn R Ludwig, Amanda B Hummon
Drug resistance is a prevalent phenomenon that decreases the efficacy of cancer treatments and contributes to cancer progression and metastasis. Weakening drug resistant cancer cells prior to chemotherapy is a potential strategy to combat chemoresistance. One approach to damage resistant cancer cells is modulation of nutritional intake. The combination of nutrient restriction with targeted compound treatment results in pronounced molecular changes. This study provides valuable information about augmenting existing chemotherapeutic regimes with simultaneous glucose restriction and autophagy inhibition in colorectal cancer cells...
June 26, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28650635/ternary-interactions-and-energy-transfer-between-fluorescein-isothiocyanate-adenosine-triphosphate-and-graphene-oxide-nanocarriers
#10
Katarzyna Ratajczak, Magdalena Stobiecka
The interactions of fluorescent probes and biomolecules with nanocarriers are of key importance to the emerging targeted drug delivery systems. Graphene oxide nanosheets (GONs) as the nanocarriers offer biocompatibility and robust drug binding capacity. The interactions of GONs with fluorophores lead to strong fluorescence quenching, which may interfere with fluorescence bioimaging and biodetection. Herein, we report on the interactions and energy transfers in a model ternary system: GONs-FITC-ATP, where FITC is a model fluorophore (fluorescein isothiocyanate) and ATP is a common biomolecule (adenosine-5'-triphosphate)...
June 26, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28650512/elucidating-sequence-and-solvent-specific-design-targets-to-protect-and-stabilize-enzymes-for-biocatalysis-in-ionic-liquids
#11
K G Sprenger, J G Plaks, J L Kaar, J Pfaendtner
For many different frameworks, the structure, function, and dynamics of an enzyme is largely determined by the nature of its interactions with the surrounding host environment, thus a molecular level understanding of enzyme/host interactions is essential to the design of new processes and applications. Ionic liquid (IL) solvents are a popular class of solvents in which to study enzyme behavior, yet it is still not possible to predict how a given enzyme will behave in a given IL solvent. Furthermore, a dearth of experimental data with which to evaluate simulation force fields has prevented the full integration of experimental and computational techniques to gain a complete picture of enzyme/IL interactions...
June 26, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28650469/a-compartmentalized-phosphoinositide-signaling-axis-at-cilia-is-regulated-by-inpp5e-to-maintain-cilia-and-promote-sonic-hedgehog-medulloblastoma
#12
S E Conduit, V Ramaswamy, M Remke, D N Watkins, B J Wainwright, M D Taylor, C A Mitchell, J M Dyson
Sonic Hedgehog (SHH) signaling at primary cilia drives the proliferation and progression of a subset of medulloblastomas, the most common malignant paediatric brain tumor. Severe side effects associated with conventional treatments and resistance to targeted therapies has led to the need for new strategies. SHH signaling is dependent on primary cilia for signal transduction suggesting the potential for cilia destabilizing mechanisms as a therapeutic target. INPP5E is an inositol polyphosphate 5-phosphatase that hydrolyses PtdIns(4,5)P2 and more potently, the phosphoinositide (PI) 3-kinase product PtdIns(3,4,5)P3...
June 26, 2017: Oncogene
https://www.readbyqxmd.com/read/28650320/combination-of-exendin-4-and-dpp-4-silencing-promoted-angiogenesis-of-human-coronary-artery-endothelial-cells-via-activation-of-pi3k-akt-pathway
#13
Xuewen Qi, Haifeng Liu, Limei Mao, Peng Sun, Degui Kong
This study was aimed to explore the combined effects of Exendin-4 with dipeptidyl peptidase-IV (DPP-4) silencing on vascular endothelial growth factor (VEGF)-induced cell proliferation and angiogenesis in Human Coronary Artery Endothelial Cells (HCAECs), as well as the underlying molecular mechanisms which were involved in this process. HCAECs were treated by exendin-4, small interfering RNA (siRNA) targeting DPP-4 (DPP-4-siRNA) or exendin-4 plus DPP-4-siRNA, respectively. Cell migration, proliferation and angiogenesis in vitro were assessed by scratch-wound assay, MTT, tran swell assay, and matrigel tube formation, respectively...
March 2017: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28650032/antibiotics-from-gram-negative-bacteria-a-comprehensive-overview-and-selected-biosynthetic-highlights
#14
REVIEW
J Masschelein, M Jenner, G L Challis
Covering: up to 2017The overwhelming majority of antibiotics in clinical use originate from Gram-positive Actinobacteria. In recent years, however, Gram-negative bacteria have become increasingly recognised as a rich yet underexplored source of novel antimicrobials, with the potential to combat the looming health threat posed by antibiotic resistance. In this article, we have compiled a comprehensive list of natural products with antimicrobial activity from Gram-negative bacteria, including information on their biosynthetic origin(s) and molecular target(s), where known...
June 26, 2017: Natural Product Reports
https://www.readbyqxmd.com/read/28650000/andexanet-alfa-a-recombinant-mimetic-of-human-factor-xa-for-the-reversal-of-anticoagulant-therapies
#15
G Escolar, M Diaz-Ricart, E Arellano-Rodrigo
Activated coagulation factor X (FXa) is a common target for classic and newer anticoagulants. Parenteral anticoagulants with an indirect inhibitory action on FXa (low-molecular-weight heparins) have a well-established clinical efficacy in the prophylaxis and therapy of thromboembolic conditions. More recently developed direct oral anticoagulants (DOACs) have emerged as a new class of antithrombotic drugs. Rivaroxaban, apixaban and edoxaban are direct inhibitors of FXa approved for the management of venous thromboembolism and stroke prevention in atrial fibrillation...
May 2017: Drugs of Today
https://www.readbyqxmd.com/read/28649987/a-ppar%C3%AE-transcriptional-cascade-directs-adipose-progenitor-cell-niche-interaction-and-niche-expansion
#16
Yuwei Jiang, Daniel C Berry, Ayoung Jo, Wei Tang, Robert W Arpke, Michael Kyba, Jonathan M Graff
Adipose progenitor cells (APCs) reside in a vascular niche, located within the perivascular compartment of adipose tissue blood vessels. Yet, the signals and mechanisms that govern adipose vascular niche formation and APC niche interaction are unknown. Here we show that the assembly and maintenance of the adipose vascular niche is controlled by PPARγ acting within APCs. PPARγ triggers a molecular hierarchy that induces vascular sprouting, APC vessel niche affinity and APC vessel occupancy. Mechanistically, PPARγ transcriptionally activates PDGFRβ and VEGF...
June 26, 2017: Nature Communications
https://www.readbyqxmd.com/read/28649807/microrna-196-regulates-hox-gene-expression-in-human-gluteal-adipose-tissue
#17
Adeline Divoux, Hui Xie, Jian-Liang Li, Kalypso Karastergiou, Ranjan J Perera, R Jeffrey Chang, Susan K Fried, Steven R Smith
OBJECTIVE: Lower body fat is associated with diminishing cardiometabolic risk. Physiological differences between gluteofemoral and abdominal subcutaneous adipocyte functions are known, but the molecular basis for depot differences in adipocyte function is poorly understood. The objective of this study was to identify depot differences in microRNA (miRNA) expression in human abdominal and gluteofemoral subcutaneous adipose tissues and their implication in gene regulation. METHODS: Abdominal and gluteofemoral adipose tissue aspirates obtained from 18 participants (9 male and 9 female, age 30 ± 1...
June 25, 2017: Obesity
https://www.readbyqxmd.com/read/28649673/rapid-acting-antidepressants-in-chronic-stress-models-molecular-and-cellular-mechanisms
#18
Brendan D Hare, Sriparna Ghosal, Ronald S Duman
Stress-associated disorders, including depression and anxiety, impact nearly 20% of individuals in the United States. The social, health, and economic burden imposed by stress-associated disorders requires in depth research efforts to identify suitable treatment strategies. Traditional medications (e.g., selective serotonin reuptake inhibitors, monoamine oxidase inhibitors) have significant limitations, notably a time lag for therapeutic response that is compounded by low rates of efficacy. Excitement over ketamine, a rapid acting antidepressant effective in treatment resistant patients, is tempered by transient dissociative and psychotomimetic effects, as well as abuse potential...
February 2017: Chronic stress
https://www.readbyqxmd.com/read/28649649/patterns-of-cell-cycle-checkpoint-deregulation-associated-with-intrinsic-molecular-subtypes-of-human-breast-cancer-cells
#19
Jacquelyn J Bower, Leah D Vance, Matthew Psioda, Stephanie L Smith-Roe, Dennis A Simpson, Joseph G Ibrahim, Katherine A Hoadley, Charles M Perou, William K Kaufmann
Genomic instability is a hallmark of breast cancer, contributes to tumor heterogeneity, and influences chemotherapy resistance. Although Gap 2 and mitotic checkpoints are thought to prevent genomic instability, the role of these checkpoints in breast cancer is poorly understood. Here, we assess the Gap 2 and mitotic checkpoint functions of 24 breast cancer and immortalized mammary epithelial cell lines representing four of the six intrinsic molecular subtypes of breast cancer. We found that patterns of cell cycle checkpoint deregulation were associated with the intrinsic molecular subtype of breast cancer cell lines...
2017: NPJ Breast Cancer
https://www.readbyqxmd.com/read/28649643/molecular-stratification-of-early-breast-cancer-identifies-drug-targets-to-drive-stratified-medicine
#20
Jane Bayani, Cindy Q Yao, Mary Anne Quintayo, Fu Yan, Syed Haider, Alister D'Costa, Cassandra L Brookes, Cornelis J H van de Velde, Annette Hasenburg, Dirk G Kieback, Christos Markopoulos, Luc Dirix, Caroline Seynaeve, Daniel Rea, Paul C Boutros, John M S Bartlett
Many women with hormone receptor-positive early breast cancer can be managed effectively with endocrine therapies alone. However, additional systemic chemotherapy treatment is necessary for others. The clinical challenges in managing high-risk women are to identify existing and novel druggable targets, and to identify those who would benefit from these therapies. Therefore, we performed mRNA abundance analysis using the Tamoxifen and Exemestane Adjuvant Multinational (TEAM) trial pathology cohort to identify a signature of residual risk following endocrine therapy and pathways that are potentially druggable...
2017: NPJ Breast Cancer
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