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https://www.readbyqxmd.com/read/28214331/pomc-maintains-tumor-initiating-properties-of-tumor-tissue-derived-long-term-cultured-breast-cancer-stem-cells
#1
Xiaoti Lin, Weiyu Chen, Fengqin Wei, Binhua P Zhou, Mien-Chie Hung, Xiaoming Xie
The identification and understanding of the molecular network of cancer stem cells (CSCs) have had a profound impact on our view of carcinogenesis and treatment strategy. Unfortunately, a major problem is that serial passages of CSCs from clinical solid tumor specimens currently are not available in any lab, and thus, reported data are difficult to confirm and intensively interrogated. Here, we have generated two tumor tissue-derived breast CSC (BCSC) lines that showed prolonged maintenance over 20 serial passages in vitro, while retaining their tumor-initiating biological properties...
February 18, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/28214326/treatment-preferences-for-biologicals-in-psoriasis-experienced-patients-appreciate-sustainability
#2
Christian Kromer, Wiebke K Peitsch, Raphael Herr, Astrid Schmieder, Diana Sonntag, Marthe-Lisa Schaarschmidt
BACKGROUND AND OBJECTIVES: Treatment satisfaction can be improved by integrating patients' preferences into shared decision-making. We recently investigated patients' preferences for attributes of biologicals, and showed high preferences for safety and efficacy. The objective of the present study was to assess the impact of treatment experience on these preferences. PATIENTS AND METHODS: Preferences for outcome (probability of 50 % and 90 % improvement, time until response, sustainability of success, probability of mild and severe adverse events, probability of ACR 20 response) and process attributes (treatment location, frequency, duration, and delivery method) were analyzed in 200 participants with moderate-to-severe psoriasis using conjoint analysis...
February 2017: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/28214240/bridging-locoregional-therapy-longitudinal-trends-and-outcomes-in-patients-with-hepatocellular-carcinoma
#3
REVIEW
Hayley C Oligane, Orrie N Close, Minzhi Xing, Hyun S Kim
The purpose of this article is to analyze longitudinal trends in locoregional therapy (LRT) use and review locoregional therapy's role in the management of hepatocellular carcinoma prior to orthotropic liver transplantation Porrett et al. (2006) . LRT has a role in both bridge to transplantation and downstaging of patients not initially meeting Milan or UCSF Criteria. Due to the lack of randomized controlled trials, no specific bridging LRT modality is recommended over another for treating patients on the waiting list, however each modality has unique and patient-specific advantages...
February 2, 2017: Transplantation Reviews
https://www.readbyqxmd.com/read/28213944/separation-of-hydroxynorketamine-stereoisomers-using-capillary-electrophoresis-with-sulfated-%C3%AE-cyclodextrin-and-highly-sulfated-%C3%AE-cyclodextrin
#4
Friederike A Sandbaumhüter, Regula Theurillat, Wolfgang Thormann
The racemic N-methyl-d-aspartate receptor antagonist ketamine is used in anesthesia, analgesia and the treatment of depressive disorders. It is known that interactions of hydroxylated norketamine metabolites and 5,6-dehydronorketamine (DHNK) with the α7 -nicotinic acetylcholine receptor and the α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor are responsible for the antidepressive effects. Ketamine and its first metabolite norketamine are not active on these receptors. As stereoselectivity plays a role in ketamine metabolism, a cationic capillary electrophoresis based method capable of resolving and analyzing the stereoisomers of four hydroxylated norketamine metabolites, norketamine and DHNK was developed...
February 18, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28213876/update-on-neoadjuvant-regimens-for-patients-with-operable-oesophageal-gastrooesophageal-junction-adenocarcinomas-and-squamous-cell-carcinomas
#5
REVIEW
Samantha J Cox, Sean M O'Cathail, Bernadette Coles, Tom Crosby, Somnath Mukherjee
Survival outcomes following multimodal treatment of operable oesophageal and gastrooesophageal cancer remain disappointingly poor. Although an appreciation of the impact of both tumour location and histological subtype is now shaping the design of clinical trials, there has been a lack of consensus of the optimal neoadjuvant treatment strategy. This update article will review recent advances in the use of both neoadjuvant chemotherapy and chemoradiotherapy. The emerging role of PET imaging to direct appropriate neoadjuvant treatment regimens and the additive benefit of biological agents are also discussed...
January 2017: Current Oncology Reports
https://www.readbyqxmd.com/read/28213833/molecular-imaging-in-synthetic-biology-and-synthetic-biology-in-molecular-imaging
#6
REVIEW
Assaf A Gilad, Mikhail G Shapiro
Biomedical synthetic biology is an emerging field in which cells are engineered at the genetic level to carry out novel functions with relevance to biomedical and industrial applications. This approach promises new treatments, imaging tools, and diagnostics for diseases ranging from gastrointestinal inflammatory syndromes to cancer, diabetes, and neurodegeneration. As these cellular technologies undergo pre-clinical and clinical development, it is becoming essential to monitor their location and function in vivo, necessitating appropriate molecular imaging strategies, and therefore, we have created an interest group within the World Molecular Imaging Society focusing on synthetic biology and reporter gene technologies...
February 17, 2017: Molecular Imaging and Biology: MIB: the Official Publication of the Academy of Molecular Imaging
https://www.readbyqxmd.com/read/28213794/selected-cytokine-pathways-in-rheumatoid-arthritis
#7
REVIEW
Mélissa Noack, Pierre Miossec
Rheumatoid arthritis (RA) is a chronic inflammatory disease leading to joint destruction. Cytokines play a key role in its pathogenesis. They contribute to the induction and maintenance of inflammation and thus provide therapeutic targets. Many cytokines are involved in RA, and this review focuses on a few critical ones: tumor necrosis factor (TNF), interleukin (IL)-6, IL-1, IL-17, and GM-CSF. TNF and IL-6 are both well-established targets in RA treatment, and new biologic agents are reaching the market. IL-1 represents a more complex cytokine as results in humans do not reach those in animal models...
February 17, 2017: Seminars in Immunopathology
https://www.readbyqxmd.com/read/28213708/removal-mechanisms-for-extremely-high-level-fluoroquinolone-antibiotics-in-pharmaceutical-wastewater-treatment-plants
#8
Xinyan Guo, Zheng Yan, Yi Zhang, Xiangji Kong, Deyang Kong, Zhengjun Shan, Na Wang
Pharmaceutical wastewater treatment plants (PWWTPs) receive industrial effluents from the plant that contain extremely high levels of antibiotics and are regarded as one of the major sources of antibiotics in the environment. Two PWWTPs have been selected in Zhejiang Province, China, to assess the removal mechanisms of fluoroquinolone antibiotics (FQs). PWWTP A uses activated sludge with biocarriers in a moving bed biofilm reactor in anoxic and aerobic units, and PWWTP B uses biological units under anaerobic, aerobic, and anoxic conditions...
February 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28213701/ursolic-acid-mediated-changes-in-glycolytic-pathway-promote-cytotoxic-autophagy-and-apoptosis-in-phenotypically-different-breast-cancer-cells
#9
Anna Lewinska, Jagoda Adamczyk-Grochala, Ewa Kwasniewicz, Anna Deregowska, Maciej Wnuk
Plant-derived pentacyclic triterpenotids with multiple biological activities are considered as promising candidates for cancer therapy and prevention. However, their mechanisms of action are not fully understood. In the present study, we have analyzed the effects of low dose treatment (5-20 µM) of ursolic acid (UA) and betulinic acid (BA) on breast cancer cells of different receptor status, namely MCF-7 (ER(+), PR(+/-), HER2(-)), MDA-MB-231 (ER(-), PR(-), HER2(-)) and SK-BR-3 (ER(-), PR(-), HER2(+)). UA-mediated response was more potent than BA-mediated response...
February 17, 2017: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/28213564/seven-year-tolerability-profile-of-glucocorticoids-use-in-early-rheumatoid-arthritis-data-from-the-espoir-cohort
#10
Camille Roubille, Nathalie Rincheval, Maxime Dougados, René-Marc Flipo, Jean-Pierre Daurès, Bernard Combe
OBJECTIVE: To explore the 7-year tolerability profile of glucocorticoids (GC) for early rheumatoid arthritis (RA). METHODS: We examined data for 602 patients with RA from the early arthritis Etude et Suivi des POlyarthrites Indifférenciées Récentes (ESPOIR) cohort (<6 months disease duration) stratified into two groups: with or without GC treatment at least once during follow-up (median 7 years (IQR 0.038-7.65)). The main outcome was a composite of death, cardiovascular disease (including myocardial ischaemia, cerebrovascular accident and heart failure), severe infection and fracture...
February 17, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28213406/mitochondria-regulated-formation-of-endothelial-extracellular-vesicles-shifts-the-mediator-of-flow-induced-vasodilation
#11
Julie K Freed, Matthew J Durand, Brian Robert Hoffmann, John C Densmore, Andrew S Greene, David D Gutterman
In order to examine the effect of endothelial-derived extracellular vesicles (eEVs) on the mechanism of flow-induced dilation (FID) composition, formation, and functional effects on the mechanism of FID were examined from two different eEV subtypes, one produced from ceramide, the other from plasminogen-activator inhibitor 1 (PAI-1). Using videomicroscopy, internal diameter changes in response to increases in flow were measured in human adipose resistance arteries acutely exposed (30min) to eEVs derived from cultured endothelial cells exposed to ceramide or PAI-1...
February 17, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28213365/fda-approval-summary-tas-102
#12
Leigh Marcus, Steven J Lemery, Sachia Khasar, Emily Wearne, Whitney S Helms, Weishi Yuan, Kun He, Xianhua Cao, Jingyu Yu, Hong Zhao, Yaning Wang, Olen Stephens, Erika Englund, Rajiv Agarwal, Patricia Keegan, Richard Pazdur
FDA approved TAS-102 (Lonsurf, Taiho Oncology, Inc.) for the treatment of patients with metastatic colorectal cancer (mCRC) who have been previously treated with fluoropyrimidine-, oxaliplatin- and irinotecan-based chemotherapy, an anti-VEGF biological therapy, and if RAS wild-type, an anti-EGFR therapy. In an international, multicenter, double-blinded, placebo-controlled trial (TPU-TAS-102-301, herein referred to as RECOURSE), 800 patients with previously treated mCRC were randomly allocated (2:1) to receive either TAS-102 35mg/m2 orally twice daily after meals on Days 1-5 and 8-12 of each 28-day cycle (n=534) or matching placebo (n=266)...
February 17, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28213337/effect-of-advanced-oxidation-on-n-nitrosodimethylamine-ndma-formation-and-microbial-ecology-during-pilot-scale-biological-activated-carbon-filtration
#13
Dong Li, Ben Stanford, Eric Dickenson, Wendell O Khunjar, Carissa L Homme, Erik J Rosenfeldt, Jonathan O Sharp
Water treatment combining advanced oxidative processes with subsequent exposure to biological activated carbon (BAC) holds promise for the attenuation of recalcitrant pollutants. Here we contrast oxidation and subsequent biofiltration of treated wastewater effluent employing either ozone or UV/H2O2 followed by BAC during pilot-scale implementation. Both treatment trains largely met target water quality goals by facilitating the removal of a suite of trace organics and bulk water parameters. N-nitrosodimethylamine (NDMA) formation was observed in ozone fed BAC columns during biofiltration and to a lesser extent in UV/H2O2 fed columns and was most pronounced at 20 min of empty bed contact time (EBCT) when compared to shorter EBCTs evaluated...
February 2, 2017: Water Research
https://www.readbyqxmd.com/read/28213335/transformation-products-of-clindamycin-in-moving-bed-biofilm-reactor-mbbr
#14
Gordon T H Ooi, Monica Escola Casas, Henrik R Andersen, Kai Bester
Clindamycin is widely prescribed for its ability to treat a number of common bacterial infections. Thus, clindamycin enters wastewater via human excretion or disposal of unused medication and widespread detection of pharmaceuticals in rivers proves the insufficiency of conventional wastewater treatment plants in removing clindamycin. Recently, it has been discovered that attached biofilm reactors, e.g., moving bed biofilm reactors (MBBRs) obtain a higher removal of pharmaceuticals than conventional sludge wastewater treatment plants...
February 2, 2017: Water Research
https://www.readbyqxmd.com/read/28213333/hmba-is-a-putative-hsp70-activator-stimulating-hexim1-expression-that-is-down-regulated-by-estrogen
#15
Rati Lama, Chunfang Gan, Nethrie Idippily, Viharika Bobba, David Danielpour, Monica Montano, Bin Su
Hexamethylene bis-acetamide inducible protein 1 (HEXIM1) is identified as a novel inhibitor of estrogen stimulated breast cell growth, and it suppresses estrogen receptor-α transcriptional activity. HEXIM1 protein level has been found to be downregulated by estrogens. Recently, HEXIM1 has been found to inhibit androgen receptor transcriptional activity as well. Researchers have used Hexamethylene bis-acetamide (HMBA) for decades to stimulate HEXIM1 expression, which also inhibit estrogen stimulated breast cancer cell gene activation and androgen stimulated prostate cancer gene activation...
February 14, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28213288/inhibition-of-estrogen-related-receptor-%C3%AE-attenuates-vascular-smooth-muscle-cell-proliferation-and-migration-by-regulating-rhoa-p27-kip1-and-%C3%AE-catenin-wnt4-signaling-pathway
#16
Qunyi Li, Lei Zhu, Liudi Zhang, Haifei Chen, Yingfeng Zhu, Yongli Du, Wanxian Zhong, Mingkang Zhong, Xiaojin Shi
RhoA/p27(Kip1) and β-Catenin/Wnt4 signaling processes play central roles in proliferation and migration in vascular smooth muscle cells (VSMCs). ERRα, a member of orphan nuclear receptors, is a potent prognostic factor in breast, ovarian, colon and other types of tumors. However, biological significance of ERRα in VSMCs as well as the molecular mechanisms remains largely unknown. Therefore, the present study was designed to investigate whether ERRα is involved in the proliferation and migration of VSMCs in vitro and neointimal formation in vivo...
February 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28212922/organ-specific-biomarkers-in-lupus
#17
REVIEW
Haijing Wu, Jinrong Zeng, Ming Zhao, Qianjin Lu
Systemic lupus erythematosus (SLE) is a complex and highly heterogeneous disease, which affects multiple organs, including joints, skin, kidneys, heart, hematopoietic system, and nerve system. While the etiopathogenesis of SLE still remains unclear, genetic susceptibilities and aberrant epigenetic modifications are believed to be involved. For precision therapy, it is necessary to assess accurately and objectively organ involvements and disease activity, which is difficult by current clinical laboratory tests...
February 14, 2017: Autoimmunity Reviews
https://www.readbyqxmd.com/read/28212865/casein-kinase-2-interacting-protein-1-regulates-m1-and-m2-inflammatory-macrophage-polarization
#18
Yuhan Chen, Wen Liu, Yiwu Wang, Luo Zhang, Jun Wei, Xueli Zhang, Fuchu He, Lingqiang Zhang
The importance of macrophage plasticity, albeit being discovered recently, has been highlighted in a broad spectrum of biological processes operative in physiological and pathological environments. Macrophage polarized activation and inactivation has profound effects on immune and inflammatory responses with several major pathways being elucidated in the past few years. However, transcriptional regulation mechanisms governing macrophage polarization is still preliminary. In this study, we identify the Casein Kinase 2 Interacting Protein 1 (CKIP-1) as a molecular toggle manipulating macrophage speciation...
February 14, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28212842/pathophysiological-consequences-of-receptor-mistraffic-tales-from-the-platelet-p2y12-receptor
#19
Margaret R Cunningham, Riyaad Aungraheeta, Stuart J Mundell
Genetic variations in G protein-coupled receptor (GPCR) genes can disrupt receptor function in a wide variety of human genetic diseases, including platelet bleeding disorders. Platelets are critical for haemostasis with inappropriate platelet activation leading to the development of arterial thrombosis, which can result in heart attack and stroke whilst decreased platelet activity is associated with an increased risk of bleeding. GPCRs expressed on the surface of platelets play key roles in regulating platelet activity and therefore function...
February 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28212756/the-holy-grail-solid-tumor-efficacy-by-proteasome-inhibition
#20
Mark Rolfe
Proteasome inhibitors have revolutionized the treatment of multiple myeloma but have had disappointing results when treating solid tumors. The work of Weyburne et al. (2017), published in this issue of Cell Chemical Biology, sheds some light on this conundrum and suggests a novel approach to achieve solid tumor efficacy.
February 16, 2017: Cell Chemical Biology
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