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https://www.readbyqxmd.com/read/28926584/transcriptome-analysis-reveals-molecular-anthelmintic-effects-of-procyanidins-in-c-elegans
#1
Verena Spiegler, Andreas Hensel, Jochen Seggewiß, Milena Lubisch, Eva Liebau
Worldwide, more than 1 billion people are affected by infestations with soil-transmitted helminths and also in veterinary medicine helminthiases are a severe threat to livestock due to emerging resistances against the common anthelmintics. Proanthocyanidins have been increasingly investigated for their anthelmintic properties, however, except for an interaction with certain proteins of the nematodes, not much is known about their mode of action. To investigate the anthelmintic activity on a molecular level, a transcriptome analysis was performed in Caenorhabditis elegans after treatment with purified and fully characterized oligomeric procyanidins (OPC)...
2017: PloS One
https://www.readbyqxmd.com/read/28925941/cold-atmospheric-plasma-in-the-treatment-of-osteosarcoma
#2
REVIEW
Denis Gümbel, Sander Bekeschus, Nadine Gelbrich, Matthias Napp, Axel Ekkernkamp, Axel Kramer, Matthias B Stope
Human osteosarcoma (OS) is the most common primary malignant bone tumor occurring most commonly in adolescents and young adults. Major improvements in disease-free survival have been achieved by implementing a combination therapy consisting of radical surgical resection of the tumor and systemic multi-agent chemotherapy. However, long-term survival remains poor, so novel targeted therapies to improve outcomes for patients with osteosarcoma remains an area of active research. This includes immunotherapy, photodynamic therapy, or treatment with nanoparticles...
September 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28921643/bridging-adult-experience-to-pediatrics-in-oncology-drug-development
#3
Ruby Leong, Hong Zhao, Gregory Reaman, Qi Liu, Yaning Wang, Clinton F Stewart, Gilbert Burckart
Pediatric drug development in the United States has grown under the current regulations made permanent by the Food and Drug Administration Safety and Innovation Act of 2012. Over 1200 pediatric studies have now been submitted to the US FDA, but there is still a high rate of failure to obtain pediatric labeling for the indication pursued. Pediatric oncology represents special problems in that the disease is most often dissimilar to any cancer found in the adult population. Therefore, the development of drug dosing in pediatric oncology patients represents a special challenge...
October 2017: Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28917272/towards-personalized-medicine-of-colorectal-cancer
#4
REVIEW
Mohammad Azhar Aziz, Zeyad Yousef, Ayman M Saleh, Sameer Mohammad, Bandar Al Knawy
Efforts in colorectal cancer (CRC) research aim to improve early detection and treatment for metastatic stages which could translate into better prognosis of this disease. One of the major challenges that hinder these efforts is the heterogeneous nature of CRC and involvement of diverse molecular pathways. New large-scale 'omics' technologies are making it possible to generate, analyze and interpret biological data from molecular determinants of CRC. The developments of sophisticated computational analyses would allow information from different omics platforms to be integrated, thus providing new insights into the biology of CRC...
October 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28916961/practical-computational-toolkits-for-dendrimers-and-dendrons-structure-design
#5
Nuno Martinho, Liana C Silva, Helena F Florindo, Steve Brocchini, Teresa Barata, Mire Zloh
Dendrimers and dendrons offer an excellent platform for developing novel drug delivery systems and medicines. The rational design and further development of these repetitively branched systems are restricted by difficulties in scalable synthesis and structural determination, which can be overcome by judicious use of molecular modelling and molecular simulations. A major difficulty to utilise in silico studies to design dendrimers lies in the laborious generation of their structures. Current modelling tools utilise automated assembly of simpler dendrimers or the inefficient manual assembly of monomer precursors to generate more complicated dendrimer structures...
September 15, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28916927/genetic-test-risk-prediction-and-counseling
#6
Maggie Haitian Wang, Haoyi Weng
Advancement in technology has nurtured the new era of genetic tests for personalized medicine. In this chapter, we will introduce the current development, challenges, and the outlook of genetic test, disease risk prediction, and genetic counseling. In the first section, we will present the success cases in the areas of molecular classification of tumors, pharmacogenomics, and Mendelian disorders, and the challenges of genetic tests implementations. In the second section, common methods for genetic risk prediction models and evaluation measures will be introduced, as well as challenges in feature reliability, risk model stability, and clinical utility...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28906208/pattern-recognition-receptors-signaling-pathways-and-dysregulation-in-canine-chronic-enteropathies-brief-review
#7
Romy M Heilmann, Karin Allenspach
Pattern-recognition receptors (PRRs) are expressed by innate immune cells and recognize pathogen-associated molecular patterns (PAMPs) as well as endogenous damage-associated molecular pattern (DAMP) molecules. With a large potential for synergism or convergence between their signaling pathways, PRRs orchestrate a complex interplay of cellular mediators and transcription factors, and thus play a central role in homeostasis and host defense. Aberrant activation of PRR signaling, mutations of the receptors and/or their downstream signaling molecules, and/or DAMP/PAMP complex-mediated receptor signaling can potentially lead to chronic auto-inflammatory diseases or development of cancer...
September 1, 2017: Journal of Veterinary Diagnostic Investigation
https://www.readbyqxmd.com/read/28902203/molecular-engineering-solutions-for-therapeutic-peptide-delivery
#8
REVIEW
Handan Acar, Jeffrey M Ting, Samanvaya Srivastava, James L LaBelle, Matthew V Tirrell
Proteins and their interactions in and out of cells must be well-orchestrated for the healthy functioning and regulation of the body. Even the slightest disharmony can cause diseases. Therapeutic peptides are short amino acid sequences (generally considered <50 amino acids) that can naturally mimic the binding interfaces between proteins and thus, influence protein-protein interactions. Because of their fidelity of binding, peptides are a promising next generation of personalized medicines to reinstate biological harmony...
September 13, 2017: Chemical Society Reviews
https://www.readbyqxmd.com/read/28895180/recent-progress-using-the-staudinger-ligation-for-radiolabeling-applications
#9
Constantin Mamat, Matthew Gott, Jörg Steinbach
The increasing application of positron emission tomography (PET) and single photon emission computer tomography (SPECT) in radiopharmacy and nuclear medicine has stimulated the development of a multitude of novel and versatile bioorthogonal conjugation techniques. Currently, there is particular interest in radiolabeling biologically active, high molecular weight compounds like peptides, proteins or antibodies, but also for the labeling of small organic compounds. An enormous challenge in radiolabeling these biologically active molecules is that the introduction of radiohalogens like fluorine-18 as well as various radiometals proceeds under harsh conditions, which could destroy the biomolecule...
September 11, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28892296/tailored-approaches-in-drug-development-and-diagnostics-from-molecular-design-to-biological-model-systems
#10
REVIEW
Cecilia Sahlgren, Annika Meinander, Hongbo Zhang, Fang Cheng, Maren Preis, Chunlin Xu, Tiina A Salminen, Diana Toivola, Daniel Abankwa, Ari Rosling, Didem Şen Karaman, Outi M H Salo-Ahen, Ronald Österbacka, John E Eriksson, Stefan Willför, Ion Petre, Jouko Peltonen, Reko Leino, Mark Johnson, Jessica Rosenholm, Niklas Sandler
Approaches to increase the efficiency in developing drugs and diagnostics tools, including new drug delivery and diagnostic technologies, are needed for improved diagnosis and treatment of major diseases and health problems such as cancer, inflammatory diseases, chronic wounds, and antibiotic resistance. Development within several areas of research ranging from computational sciences, material sciences, bioengineering to biomedical sciences and bioimaging is needed to realize innovative drug development and diagnostic (DDD) approaches...
September 11, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28889086/the-notch-3-receptor-a-molecular-switch-to-tumorigenesis
#11
REVIEW
Shakeel Inder, Sinead O'Rourke, Niamh McDermott, Rustom Manecksha, Stephen Finn, Thomas Lynch, Laure Marignol
The Notch pathway is a highly conserved pathway increasingly implicated with the progression of human cancers. Of the four existing receptors associated with the pathway, the deregulation in the expression of the Notch-3 receptor is associated with more aggressive disease and poor prognosis. Selective targeting of this receptor has the potential to enhance current anti-cancer treatments. Molecular profiling strategies are increasingly incorporated into clinical decision making. This review aims to evaluate the clinical potential of Notch-3 within this new era of personalised medicine...
September 1, 2017: Cancer Treatment Reviews
https://www.readbyqxmd.com/read/28886910/challenges-towards-revitalizing-hemp-a-multifaceted-crop
#12
REVIEW
Craig Schluttenhofer, Ling Yuan
Hemp has been an important crop throughout human history for food, fiber, and medicine. Despite significant progress made by the international research community, the basic biology of hemp plants remains insufficiently understood. Clear objectives are needed to guide future research. As a semi-domesticated plant, hemp has many desirable traits that require improvement, including eliminating seed shattering, enhancing the quantity and quality of stem fiber, and increasing the accumulation of phytocannabinoids...
September 5, 2017: Trends in Plant Science
https://www.readbyqxmd.com/read/28883652/tracking-the-tumor-invasion-front-using-long-term-fluidic-tumoroid-culture
#13
Koh Meng Aw Yong, Zida Li, Sofia D Merajver, Jianping Fu
The analysis of invading leader cells at the tumor invasion front is of significant interest as these cells may possess a coordinated functional and molecular phenotype which can be targeted for therapy. However, such analyses are currently limited by available technologies. Here, we report a fluidic device for long-term three-dimensional tumoroid culture which recapitulated the tumor invasion front, allowing for both quantification of invasive potential and molecular characterization of invasive leader cells...
September 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28880909/in-vivo-biological-activity-and-glycosylation-analysis-of-a-biosimilar-recombinant-human-follicle-stimulating-hormone-product-bemfola-compared-with-its-reference-medicinal-product-gonal-f
#14
Renato Mastrangeli, Abhijeet Satwekar, Francesca Cutillo, Cinzia Ciampolillo, Wolf Palinsky, Salvatore Longobardi
Recombinant human follicle-stimulating hormone (r-hFSH) is widely used in fertility treatment. Although biosimilar versions of r-hFSH (follitropin alfa) are currently on the market, given their structural complexity and manufacturing process, it is important to thoroughly evaluate them in comparison with the reference product. This evaluation should focus on how they differ (e.g., active component molecular characteristics, impurities and potency), as this could be associated with clinical outcome. This study compared the site-specific glycosylation profile and batch-to-batch variability of the in-vivo bioactivity of Bemfola, a biosimilar follitropin alfa, with its reference medicinal product GONAL-f...
2017: PloS One
https://www.readbyqxmd.com/read/28879857/improving-crispr-cas9-on-target-specificity
#15
Muhammad Jamal, Arif Ullah, Muhammad Ahsan, Rohit Tyagi, Zeshan Habib, Khaista Rehman
The CRISPR-Cas9 has revolutionized the field of molecular biology, medical genetics and medicine. The technology is robust, facile and simple to achieve genome targeting in cells and organisms. However, to propagate these nucleases for therapeutic application, the on-target specificity is of paramount importance. Although the binding and cleavage of off-target sites by Cas9 is issue of concern, however the specificity of CRISPR technology is greatly improved in current research employing the use of engineer nucleases, improved gRNA selection, novel Cas9 orhtologs and the advancement in methods to detect and screen off-target sites and its effects...
September 7, 2017: Current Issues in Molecular Biology
https://www.readbyqxmd.com/read/28875852/molecular-modeling-studies-of-novel-fluoroquinolone-molecules
#16
Naresh Kumar Katari, Tejeswara Rao Allaka, Venkataramireddy Veeramreddy, Jaya Shree Anireddy
BACKGROUND: Fluoroquinolones have been the centre of considerable scientific and clinical interest due to their broad spectrum pharmacological activities. Pefloxacin is an analogue of norfloxacin, which is a 3rd generation of fluoroquinolone [5] antibiotic similar to ciprofloxacin. Pefloxacin is used to treat a variety of bacterial infections like respiratory tract, ear, nose and throat (ENT) infections, skin infections, urinary tract infections. Hydrazone as a pharmacophore unit that attract the medicinal chemists because of structure activity relationship (SAR) studies of fluoroquinolones especially the functionality at C-3 position...
August 29, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/28875300/advances-in-the-application-and-impact-of-micrornas-as-therapies-for-skin-disease
#17
REVIEW
Paul Lawrence, Joseph Ceccoli
The advent of RNA interference (RNAi) technology has profoundly impacted molecular biology research and medicine but has also advanced the field of skin care. Both effector molecules of RNAi, short-interfering RNA molecules and microRNAs (miRNAs), have been explored for their relative impact and utility for treating a variety of skin conditions. These post-transcriptional RNA regulatory molecules down-modulate protein expression through targeting of the 3' untranslated regions of messenger RNAs, leading to their degradation or repression through sequestration...
September 5, 2017: BioDrugs: Clinical Immunotherapeutics, Biopharmaceuticals and Gene Therapy
https://www.readbyqxmd.com/read/28871390/exploring-sets-of-molecules-from-patents-and-relationships-to-other-active-compounds-in-chemical-space-networks
#18
Ryo Kunimoto, Jürgen Bajorath
Patents from medicinal chemistry represent a rich source of novel compounds and activity data that appear only infrequently in the scientific literature. Moreover, patent information provides a primary focal point for drug discovery. Accordingly, text mining and image extraction approaches have become hot topics in patent analysis and repositories of patent data are being established. In this work, we have generated network representations using alternative similarity measures to systematically compare molecules from patents with other bioactive compounds, visualize similarity relationships, explore the chemical neighbourhood of patent molecules, and identify closely related compounds with different activities...
September 4, 2017: Journal of Computer-aided Molecular Design
https://www.readbyqxmd.com/read/28870982/understanding-the-effect-of-corticosteroid-pretreatment-in-brain-dead-organ-donors-new-mechanistic-insights-for-improvement-of-organ-quality-in-liver-transplantation
#19
Carola Dahrenmöller, Raymond Reding
Transplant surgeons are currently faced with the challenge to accept marginal liver transplants due to steatosis or old age. Improving organ quality by implementing a selective organ protective donor management could be the first step towards a graft of enhanced quality. However, the molecular mechanisms of such treatments are still poorly understood. Glucocorticoid medication in donor medicine has been carried out and discussed for a long time. In a recent study published in Clinical Science, Jiménez-Castro et al...
September 15, 2017: Clinical Science (1979-)
https://www.readbyqxmd.com/read/28870900/probing-the-molecular-mechanisms-governing-the-oncolytic-activity-of-paeonia-suffruticosa-on-triple-negative-breast-cancer-cells-in-vitro
#20
Dongyeon Kim, Daniel Radin, Donna Leonardi
BACKGROUND/AIM: Extracts of Paeonia suffruticosa are traditionally used in Chinese medicine to increase blood flow. Recently, this extract has been shown to possess anti-tumor and anti-inflammatory properties, though this mechanism remains unknown. In the current work, we prepared extracts of P. suffruticosa and analyzed their effects on MDA-MB-231 triple-negative breast cancer cells. MATERIALS AND METHODS: Varying concentrations of an aqueous extract of P. suffruticosa was administered to MDA-MB-231...
September 2017: Anticancer Research
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