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https://www.readbyqxmd.com/read/29452455/complex-hur-function-in-pancreatic-cancer-cells
#1
REVIEW
Jonathan R Brody, Dan A Dixon
Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers with dismal patient outcomes. The underlying core genetic drivers of disease have been identified in human tumor specimens and described in genetically engineered mouse models. These genetic drivers of PDAC include KRAS signaling, TP53 mutations, and genetic loss of the SMAD4 tumor suppressor protein. Beyond the known mutational landscape of PDAC genomes, alternative disrupted targets that extend beyond conventional genetic mutations have been elusive and understudied in the context of PDAC cell therapeutic resistance and survival...
February 16, 2018: Wiley Interdisciplinary Reviews. RNA
https://www.readbyqxmd.com/read/29452418/phf20-collaborates-with-parp1-to-promote-stemness-and-aggressiveness-of-neuroblastoma-cells-through-activation-of-sox2-and-oct4
#2
Wenyong Long, Wei Zhao, Bo Ning, Jing Huang, Junjun Chu, Linfeng Li, Qianquan Ma, Changsheng Xing, Helen Y Wang, Qing Liu, Rong-Fu Wang
The differentiation status of neuroblastoma (NB) strongly correlates with its clinical outcomes; however, the molecular mechanisms driving maintenance of stemness and differentiation remain poorly understood. Here, we show that plant homeodomain finger-containing protein 20 (PHF20) functions as a critical epigenetic regulator in sustaining stem cell-like phenotype of NB by using CRISPR/Cas9-based targeted knockout (KO) for high-throughput screening of gene function in NB cell differentiation. Expression of PHF20 in NB was significantly associated with high aggressiveness of the tumor and poor outcomes for NB patients...
February 14, 2018: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/29452366/prevalence-and-incidence-of-anal-and-cervical-high-risk-human-papillomavirus-hpv-types-covered-by-current-hpv-vaccines-among-hiv-infected-women-in-the-study-to-understand-the-natural-history-of-hiv-aids-in-the-era-of-effective-therapy-the-sun-study
#3
Erna Milunka Kojic, Lois Conley, Tim Bush, Susan Cu-Uvin, Elizabeth R Unger, Keith Henry, John Hammer, Gerome Escota, Teresa M Darragh, Joel M Palefsky, John T Brooks, Pragna Patel
Background: Nonavalent (9v) human papilloma virus vaccine targets high-risk (HR)-HPV types 16, 18, 31, 33, 45, 52, 58, and low-risk 6, 11. We examined prevalence, incidence, and clearance of anal and cervical HR-HPV in HIV-infected women. Methods: From 2004-2006, the SUN Study enrolled 167 women from four US cities. Anal and cervical specimens were collected annually for cytology and identification of 37 HPV types; 14 HR include: 9v 16, 18, 31, 33, 45, 52, 58; non-9v 35, 39, 51, 56, 59, 66, 68...
February 14, 2018: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/29452346/beyond-second-line-therapy-in-patients-with-metastatic-colorectal-cancer-a-systematic-review
#4
D Arnold, G W Prager, A Quintela, A Stein, S Moreno, N Mounedji, J Taieb
Background: The optimal chemotherapeutic regimen for use beyond the second-line for patients with metastatic colorectal cancer (mCRC) remains unclear. Materials and methods: We systematically searched the Cochrane Database of Systematic Reviews, EMBASE and Medline for records published between January 2002 and May 2017, and cancer congress databases for records published between January 2014 and June 2017. Eligible studies evaluated the efficacy, safety and patient-reported outcomes of monotherapies or combination therapies at any dose and number of treatment cycles for use beyond the second line in patients with mCRC...
February 14, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29452344/overexpression-of-blm-promotes-dna-damage-and-increased-sensitivity-to-platinum-salts-in-triple-negative-breast-and-serous-ovarian-cancers
#5
N J Birkbak, Y Li, S Pathania, A Greene-Colozzi, M Dreze, C Bowman-Colin, Z Sztupinszki, M Krzystanek, M Diossy, N Tung, P D Ryan, J E Garber, D P Silver, J D Iglehart, Z C Wang, D Szuts, Z Szallasi, A L Richardson
Background: Platinum based therapy is an effective treatment for a subset of triple negative breast cancer and ovarian cancer patients. In order to increase response rate and decrease unnecessary use, robust biomarkers that predict response to therapy are needed. Patients and methods: We performed an integrated genomic approach combining differential analysis of gene expression and DNA copy number in sensitive compared to resistant triple negative breast cancers in two independent neoadjuvant cisplatin treated cohorts...
February 14, 2018: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29452309/echocardiography-for-the-management-of-patients-with-biventricular-pacing-possible-roles-in-cardiac-resynchronization-therapy-implementation
#6
REVIEW
Emmanouil Poulidakis, Constantina Aggeli, Konstantinos Kappos, Antonis S Manolis, Skevos Sideris, Konstantinos Gatzoulis, Evangelos Oikonomou, Dimitrios Tousoulis
Cardiac Resynchronization Therapy (CRT) is an established therapeutic option for the subset of patients with heart failure (HF), reduced ejection fraction (EF) and dyssynchrony evidenced by electrocardiography. Benefit from CRT has been proven in many clinical trials, yet a sizeable proportion of these patients with wide QRS do not respond to this intervention, despite the updated practice guidelines. Several echocardiographic indices, targeting mechanical rather than electrical dyssynchrony, have been suggested to address this issue, but research so far has not succeeded in providing a single and simple measurement with adequate sensitivity and specificity for identification of responders...
February 13, 2018: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/29452275/a-laser-activated-multifunctional-targeted-nanoagent-for-imaging-and-gene-therapy-in-a-mouse-xenograft-model-with-retinoblastoma-y79-cells
#7
Mingxing Wu, Haibo Xiong, Hongmi Zou, Meng Li, Pan Li, Yu Zhou, Yan Xu, Jia Jian, Fengqiu Liu, Hongyun Zhao, Zhigang Wang, Xiyuan Zhou
Retinoblastoma (RB) is the most common intraocular malignancy of childhood that urgently needs early detection and effective therapy methods. The use of nanosized gene delivery systems is appealing because of their highly adjustable structure to carry both therapeutic and imaging agents. Herein, we report a folic acid (FA)-modified phase-changeable cationic nanoparticle encapsulating liquid perfluoropentane (PFP) and indocyanine green (ICG) (FA-CN-PFP-ICG, FCNPI) with good plasmid DNA (pDNA) carrying capacity, favorable biocompatibility, excellent photoacoustic (PA) and ultrasound (US) contrast, enhanced gene transfection efficiency and therapeutic effect...
February 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29452272/ph-sensitive-doxorubicin-conjugated-prodrug-micelles-with-charge-conversion-for-cancer-therapy
#8
Boxuan Ma, Weihua Zhuang, Yanan Wang, Rifang Luo, Yunbing Wang
Intelligent drug delivery systems with prolonged circulation time, reduced drug leakage in blood, target site-triggered drug release and endosomal escape are attractive and ideal for malignant tumor therapy. Herein, doxorubicin (DOX)-conjugated smart polymeric micelles based on 4-carboxy benzaldehyde-grafted poly (L-lysine)-block-poly (methacryloyloxyethyl phosphorylcholine) (PLL(CB/DOX)-b-PMPC) copolymer are prepared. DOX and electronegative 4-carboxy benzaldehyde are conjugated to the PLL block via an imine linkage and as a result, the drug loaded micelles exhibited the pH-triggered charge-conversion property and accelerated drug release at tumor pH...
February 13, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29451980/tri-layer-polymeric-shells-containing-magnetite-nanocarrier-mediated-lcs-1-delivery-for-synthetic-lethal-therapy-of-blm-defective-colorectal-cancer-cells
#9
Anuradha Gupta, Anas Ahmad, Hardeep Singh, Sharanjeet Kaur, Neethu K M, Md Meraj Ansari, Govindasamy Jayamurugan, Rehan Khan
Synthetic lethality is a molecular targeted therapy for selective killing of cancer cells. We exploited a lethal interaction between Superoxide dismutase1 inhibition and Bloom syndrome gene product (BLM) defect for the treatment of colorectal cancer (CRC) cells (HCT 116) with lung cancer screen-1 (LCS-1) loaded customized nanocarrier. LCS-1 has poor aqueous solubility. To overcome its limitations, customized nanocarrier (NC), composed of magnetite core coated with three polymeric shells namely, aminocellulose, branched poly(amidoamine) and paraben-PEG, was developed for encapsulating LCS-1...
February 16, 2018: Biomacromolecules
https://www.readbyqxmd.com/read/29451967/cognitive-behavioral-therapy-for-anxiety-and-related-disorders-a-meta-analysis-of-randomized-placebo-controlled-trials
#10
REVIEW
Joseph K Carpenter, Leigh A Andrews, Sara M Witcraft, Mark B Powers, Jasper A J Smits, Stefan G Hofmann
The purpose of this study was to examine the efficacy of cognitive behavioral therapy (CBT) for anxiety-related disorders based on randomized placebo-controlled trials. We included 41 studies that randomly assigned patients (N = 2,843) with acute stress disorder, generalized anxiety disorder (GAD), obsessive compulsive disorder (OCD), panic disorder (PD), posttraumatic stress disorder (PTSD), or social anxiety disorder (SAD) to CBT or a psychological or pill placebo condition. Findings demonstrated moderate placebo-controlled effects of CBT on target disorder symptoms (Hedges' g = 0...
February 16, 2018: Depression and Anxiety
https://www.readbyqxmd.com/read/29451745/detection-of-ros1-positive-non-small-cell-lung-cancer-on-cytological-specimens-using-immunocytochemistry
#11
Tatjana Vlajnic, Spasenija Savic, Audrey Barascud, Betty Baschiera, Michel Bihl, Bruno Grilli, Michelle Herzog, Julien Rebetez, Lukas Bubendorf
BACKGROUND: Rearrangements of the ROS1 oncogene are found in 1% to 2% of non-small cell lung cancers (NSCLC) and are regarded as mutually exclusive oncogenic driver mutations. Since the approval of targeted therapy for ROS1-positive NSCLC, ROS1 testing has become a part of the diagnostic routine. Fluorescence in situ hybridization (FISH), optionally selected for by immunohistochemistry on histological material, is a common practice for the detection of ROS1 rearrangements. However, NSCLC often is diagnosed by cytology alone, requiring predictive marker testing on cytological specimens...
February 16, 2018: Cancer Cytopathology
https://www.readbyqxmd.com/read/29451577/an-upconversion-nanoplatform-with-extracellular-ph-driven-tumor-targeting-ability-for-improved-photodynamic-therapy
#12
Fujin Ai, Na Wang, Xiaoman Zhang, Tianying Sun, Qi Zhu, Wei Kong, Feng Wang, Guangyu Zhu
Upconversion nanoparticles (UCNPs) are widely utilized for photodynamic therapy (PDT) due to their specific upconverting luminescence that utilizes near infrared (NIR) light to excite photosensitizers (PSs) for PDT. The efficiency of UCNP-based PDT will be improved if the cancer-targeting property of nanomedicine is enhanced. Herein, we employed the pH low insertion peptide (pHLIP), a cancer-targeting moiety, to functionalize an 808 nm excited UCNP-based nanoplatform that has a minimized over-heating effect to perform PDT...
February 16, 2018: Nanoscale
https://www.readbyqxmd.com/read/29451575/functionalized-cu-3-bis-3-nanoparticles-for-dual-modal-imaging-and-targeted-photothermal-photodynamic-therapy
#13
Yanke Wang, Dongdong Cai, Huixia Wu, Yu Fu, Yang Cao, Yingjian Zhang, Dongmei Wu, Qiwei Tian, Shiping Yang
Multifunctional nano-biomaterials with the integration of diagnostic and therapeutic functions have shown great promise in improving the efficacy of cancer therapy. Herein, a new nanoplatform based on functionalized Cu 3 BiS 3 nanoparticles (NPs) is fabricated for tumour-targeted combination phototherapy. The as-synthesized hydrophobic Cu 3 BiS 3 NPs are modified with DSPE-PEG/DSPE-PEG-NH 2 , followed by the conjugation of the photosensitizer chlorin e6 (Ce6) and the target ligand folic acid (FA). The introduced Ce6 can further form a chelate complex with Gd 3+ ...
February 16, 2018: Nanoscale
https://www.readbyqxmd.com/read/29451568/upconversion-in-photodynamic-therapy-plumbing-the-depths
#14
Michael R Hamblin
Photodynamic therapy (PDT) involves the combination of non-toxic dyes called photosensitizers (PS) and harmless visible light that interact with ambient oxygen to give reactive oxygen species (ROS) that can damage biomolecules and kill cells. PDT has mostly been developed as a cancer therapy but can also be used as an antimicrobial approach against localized infections. However even the longest wavelength used for exciting PS (in the 700 nm region) has relatively poor tissue penetration, and many PS are much better excited by blue and green light...
February 16, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/29451485/-the-roles-of-mast-cells-in-radiation-induced-damage-are-still-an-enigma
#15
Fabien Milliat, Agnès François
Mast cells are immune cells that mature within the host tissue. The acquired phenotype is dictated by the tissue microenvironment, giving rise to diverse tissue-dependent phenotypes and functions. The lack of cellular models reflecting phenotypes found in vivo and important differences between human and rodent mast cells are obstacles to the understanding of their exact role in several pathophysiological processes. Studies published over the past few years showed that mast cells' role lies far beyond their involvement in allergy and anaphylaxis...
February 2018: Médecine Sciences: M/S
https://www.readbyqxmd.com/read/29451455/laser-ablative-therapy-of-sessile-hypothalamic-hamartomas-in-children-using-interventional-mri-report-of-5-cases
#16
Derek G Southwell, Harjus S Birk, Paul S Larson, Philip A Starr, Leo P Sugrue, Kurtis I Auguste
Hypothalamic hamartomas (HHs) are benign lesions that cause medically refractory seizures, behavioral disturbances, and endocrine dysfunction. Open resection of HHs does not guarantee seizure freedom and carries a relatively high risk of morbidity. Minimally invasive stereotactic laser ablation has recently been described as an effective and safe alternative for HH treatment. Prior studies have not, however, assessed HH lesion size and morphology, 2 factors that may influence treatment results and, ultimately, the generalizability of their findings...
February 16, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29451453/trapped-ventricle-after-laser-ablation-of-a-subependymal-giant-cell-astrocytoma-complicated-by-intraventricular-gadolinium-extravasation-case-report
#17
Michael Karsy, Daxa M Patel, Robert J Bollo
Magnetic resonance imaging-guided stereotactic laser ablation of intracranial targets, including brain tumors, has expanded dramatically over the past decade, but there have been few reports of complications, especially those occurring in a delayed fashion. Laser ablation of subependymal giant cell astrocytomas (SEGAs) is an attractive alternative to maintenance immunotherapy in some children with tuberous sclerosis complex (TSC); however, the effect of treatment on disease progression and the nature and frequency of potential complications remains largely unknown...
February 16, 2018: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/29451447/peripheral-nerve-grafts-implanted-into-the-substantia-nigra-in-patients-with-parkinson-s-disease-during-deep-brain-stimulation-surgery-1-year-follow-up-study-of-safety-feasibility-and-clinical-outcome
#18
Craig G van Horne, Jorge E Quintero, John T Slevin, Amelia Anderson-Mooney, Julie A Gurwell, Andrew S Welleford, John R Lamm, Renee P Wagner, Greg A Gerhardt
OBJECTIVE Currently, there is no treatment that slows or halts the progression of Parkinson's disease. Delivery of various neurotrophic factors to restore dopaminergic function has become a focus of study in an effort to fill this unmet need for patients with Parkinson's disease. Schwann cells provide a readily available source of such factors. This study presents a 12-month evaluation of safety and feasibility, as well as the clinical response, of implanting autologous peripheral nerve grafts into the substantia nigra of patients with Parkinson's disease at the time of deep brain stimulation (DBS) surgery...
February 16, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29451410/inclisiran-for-the-treatment-of-dyslipidemia
#19
Toshiyuki Nishikido, Kausik K Ray
Dyslipidemia is one of the most important risk factors for cardiovascular disease. Insufficient reduction in LDL-C from existing therapies in patients at high risk of atherogenic cardiovascular disease is an unmet clinical need. Circulating PCSK9 causes hypercholesterolemia by reducing LDL receptors in hepatocytes. Areas covered: PCSK9 inhibition has emerged as a promising new therapeutic strategy to reduce LDL-C. Inclisiran, a novel, synthetic, siRNA molecule, inhibits PCSK9 synthesis in hepatocytes. Inclisiran targets intracellular PCSK9 synthesis specifically, resulting in a dose-dependent, long-term, significant reduction in LDL-C...
February 16, 2018: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/29451277/tivozanib-a-new-treatment-option-for-renal-cell-carcinoma
#20
L Saes, F A L M Eskens
Tivozanib is a tyrosine kinase inhibitor that targets all vascular endothelial growth factor receptors (VEGFRs), causing inhibition of angiogenesis. It has recently been approved by the European Medicines Agency (EMA) for first-line treatment of adult patients with advanced renal cell carcinoma (RCC) and for adult patients who are VEGFR and mammalian target of rapamycin (mTOR) pathway inhibitor-naive, following disease progression after one prior treatment with cytokine therapy for advanced RCC. This review will focus on mechanisms of action, early drug development and results of published and ongoing clinical trials of tivozanib...
November 2017: Drugs of Today
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