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https://www.readbyqxmd.com/read/27933724/comparative-analysis-reveals-amino-acids-critical-for-anticancer-activity-of-peptide-cigb-552
#1
Soledad Astrada, Yolanda Gomez, Exequiel Barrera, Gonzalo Obal, Otto Pritsch, Sergio Pantano, Maribel G Vallespí, Mariela Bollati-Fogolín
Because of resistance development by cancer cells against current anticancer drugs, there is a considerable interest in developing novel antitumor agents. We have previously demonstrated that CIGB-552, a novel cell-penetrating synthetic peptide, was effective in reducing tumor size and increasing lifespan in tumor-bearing mice. Studies of protein-peptide interactions have shown that COMMD1 protein is a major mediator of CIGB-552 antitumor activity. Furthermore, a typical serine-protease degradation pattern for CIGB-552 in BALB/c mice serum was identified, yielding peptides which differ from CIGB-552 in size and physical properties...
November 2016: Journal of Peptide Science: An Official Publication of the European Peptide Society
https://www.readbyqxmd.com/read/27933634/middle-cranial-fossa-approach-to-repair-tegmen-defects-assisted-by-three-dimensionally-printed-temporal-bone-models
#2
Sameer Ahmed, Kyle K VanKoevering, Stephanie Kline, Glenn E Green, H Alexander Arts
OBJECTIVES/HYPOTHESIS: To explore the perioperative utility of three-dimensionally (3D)-printed temporal bone models of patients undergoing repair of lateral skull base defects and spontaneous cerebrospinal fluid leaks with the middle cranial fossa approach. STUDY DESIGN: Case series. METHODS: 3D-printed temporal bone models-based on patient-specific, high-resolution computed tomographic imaging-were constructed using inexpensive polymer materials...
December 9, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27933494/long-term-effects-of-increasing-acidity-on-low-ph-sulfate-reducing-bioprocess-and-bacterial-community
#3
Jing Zhao, Di Fang, Pengfei Zhang, Lixiang Zhou
An ethanol-fed, sulfate-reducing anaerobic baffled reactor was operated over a period of 260 days to assess the effects of sequentially more acidic conditions (pH 4.5-2.5) on sulfate reduction and bacterial community. Results showed that the reactor could reduce sulfate and generate alkalinity at progressively lower pH values of 4.5, 3.5, and 2.5 in a synthetic wastewater containing 2500 mg/L sulfate. About 93.9% of the influent sulfate was removed at a rate of 4691 mg/L/day, and the effluent pH was increased to 6...
December 8, 2016: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/27933484/dna-as-a-target-for-anticancer-phen-imidazole-pd-ii-complexes
#4
Maryam Heydari, Mahboube Eslami Moghadam, AliAkbar Tarlani, Hossein Farhangian
Imidazole ring is a known structure in many natural or synthetic drug molecules and its metal complexes can interact with DNA and do the cleavage. Hence, to study the influence of the structure and size of the ligand on biological behavior of metal complexes, two water-soluble Pd(II) complexes of phen and FIP ligands (where phen is 1,10-phenanthroline and FIP is 2-(Furan-2-yl)-1H-Imidazo[4,5-f][1, 10]phenanthroline) with the formula of [Pd(phen)(FIP)](NO3)2 and [Pd(FIP)2]Cl2, that were activated against chronic myelogenous leukemia cell line, K562, were selected...
December 8, 2016: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/27933454/improved-production-of-adipate-with-escherichia-coli-by-reversal-of-%C3%AE-oxidation
#5
Nicolai Kallscheuer, Jochem Gätgens, Marvin Lübcke, Jörg Pietruszka, Michael Bott, Tino Polen
The linear C6 dicarboxylic acid adipic acid is an important bulk chemical in the petrochemical industry as precursor of the polymer nylon-6,6-polyamide. In recent years, efforts were made towards the biotechnological production of adipate from renewable carbon sources using microbial cells. One strategy is to produce adipate via a reversed β-oxidation pathway. Hitherto, the adipate titers were very low due to limiting enzyme activities for this pathway. In most cases, the CoA intermediates are non-natural substrates for the tested enzymes and were therefore barely converted...
December 8, 2016: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/27933436/emerging-biotechnologies-for-production-of-itaconic-acid-and-its-applications-as-a-platform-chemical
#6
REVIEW
Badal C Saha
Recently, itaconic acid (IA), an unsaturated C5-dicarboxylic acid, has attracted much attention as a biobased building block chemical. It is produced industrially (>80 g L(-1)) from glucose by fermentation with Aspergillus terreus. The titer is low compared with citric acid production (>200 g L(-1)). This review summarizes the latest progress on enhancing the yield and productivity of IA production. IA biosynthesis involves the decarboxylation of the TCA cycle intermediate cis-aconitate through the action of cis-aconitate decarboxylase (CAD) enzyme encoded by the CadA gene in A...
December 8, 2016: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/27932801/dna-encoded-chemistry-enabling-the-deeper-sampling-of-chemical-space
#7
Robert A Goodnow, Christoph E Dumelin, Anthony D Keefe
DNA-encoded chemical library technologies are increasingly being adopted in drug discovery for hit and lead generation. DNA-encoded chemistry enables the exploration of chemical spaces four to five orders of magnitude more deeply than is achievable by traditional high-throughput screening methods. Operation of this technology requires developing a range of capabilities including aqueous synthetic chemistry, building block acquisition, oligonucleotide conjugation, large-scale molecular biological transformations, selection methodologies, PCR, sequencing, sequence data analysis and the analysis of large chemistry spaces...
December 9, 2016: Nature Reviews. Drug Discovery
https://www.readbyqxmd.com/read/27932576/mammalian-synthetic-biology-for-studying-the-cell
#8
REVIEW
Melina Mathur, Joy S Xiang, Christina D Smolke
Synthetic biology is advancing the design of genetic devices that enable the study of cellular and molecular biology in mammalian cells. These genetic devices use diverse regulatory mechanisms to both examine cellular processes and achieve precise and dynamic control of cellular phenotype. Synthetic biology tools provide novel functionality to complement the examination of natural cell systems, including engineered molecules with specific activities and model systems that mimic complex regulatory processes...
December 8, 2016: Journal of Cell Biology
https://www.readbyqxmd.com/read/27932550/spermaurin-an-la1-like-peptide-from-the-venom-of-the-scorpion-scorpio-maurus-palmatus-improves-sperm-motility-and-fertilization-in-different-mammalian-species
#9
Guillaume Martinez, Jean-Pascal Hograindleur, Sébastien Voisin, Roland Abi Nahed, Tarek M Abd El Aziz, Jessica Escoffier, Julien Bessonnat, Claire-Maëlle Fovet, Michel De Waard, Sylviane Hennebicq, Vincent Aucagne, Pierre F Ray, Eric Schmitt, Philippe Bulet, Christophe Arnoult
STUDY QUESTION: Is it possible to identify original compounds that are able to enhance sperm motility from the venom of the scorpion Scorpio maurus palmatus? SUMMARY ANSWER: We identified a potent disulfide-rich peptide (DRP) of 73 amino acids that significantly improved the motility of fresh and frozen-thawed sperm in different mammalian species, including human, and improved fertilization outcome in mouse IVF experiments. WHAT IS KNOWN ALREADY: Any disturbance of sperm motility has a strong impact on fertilization and can lead to subfertility or infertility...
December 8, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27932506/synthetic-mri-in-the-detection-of-multiple-sclerosis-plaques
#10
A Hagiwara, M Hori, K Yokoyama, M Y Takemura, C Andica, T Tabata, K Kamagata, M Suzuki, K K Kumamaru, M Nakazawa, N Takano, H Kawasaki, N Hamasaki, A Kunimatsu, S Aoki
BACKGROUND AND PURPOSE: Synthetic MR imaging enables the creation of various contrast-weighted images including double inversion recovery and phase-sensitive inversion recovery from a single MR imaging quantification scan. Here, we assessed whether synthetic MR imaging is suitable for detecting MS plaques. MATERIALS AND METHODS: Quantitative and conventional MR imaging data on 12 patients with MS were retrospectively analyzed. Synthetic T2-weighted, FLAIR, double inversion recovery, and phase-sensitive inversion recovery images were produced after quantification of T1 and T2 values and proton density...
December 8, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27932446/topoisomerase-i-mediated-cleavage-at-unrepaired-ribonucleotides-generates-dna-double-strand-breaks
#11
Shar-Yin N Huang, Jessica S Williams, Mercedes E Arana, Thomas A Kunkel, Yves Pommier
Ribonuclease activity of topoisomerase I (Top1) causes DNA nicks bearing 2',3'-cyclic phosphates at ribonucleotide sites. Here, we provide genetic and biochemical evidence that DNA double-strand breaks (DSBs) can be directly generated by Top1 at sites of genomic ribonucleotides. We show that RNase H2-deficient yeast cells displayed elevated frequency of Rad52 foci, inactivation of RNase H2 and RAD52 led to synthetic lethality, and combined loss of RNase H2 and RAD51 induced slow growth and replication stress...
December 8, 2016: EMBO Journal
https://www.readbyqxmd.com/read/27932313/3rd-congress-on-applied-synthetic-biology-in-europe-costa%C3%A2-da-caparica-portugal-february-2016
#12
Miguel Cueva
The third meeting organised by the European Federation of Biotechnology (EFB) on advances in Applied Synthetic Biotechnology in Europe (ASBE) was held in Costa da Caparica, Portugal, in February 2016. Abundant novel applications in synthetic biology were described in the six sessions of the meeting, which was divided into technology and tools for synthetic biology (I, II and III), bionanoscience, biosynthetic pathways and enzyme synthetic biology, and metabolic engineering and chemical manufacturing. The meeting presented numerous methods for the development of novel synthetic strains, synthetic biological tools and synthetic biology applications...
December 5, 2016: New Biotechnology
https://www.readbyqxmd.com/read/27932011/child-physical-development-in-the-uk-the-imprint-of-time-and-socioeconomic-status
#13
B H Apouey
OBJECTIVES: Social health inequalities remain a key policy challenge. The existing literature has not presented a synthetic view on the evolution of inequalities in physical development across childhood. We examine social disparities as children grow older using a range of different outcomes. STUDY DESIGN: Population-based secondary data analysis. METHODS: We employ longitudinal data on British children aged 9 months to 12 years from the Millennium Cohort Study (n = 13,811-18,987) and focus on multiple child physical measures: weight, body mass index (BMI), overweight, fat mass and waist circumference...
December 2016: Public Health
https://www.readbyqxmd.com/read/27931843/parp-inhibitor-combination-therapy
#14
REVIEW
Amy Dréan, Christopher J Lord, Alan Ashworth
In 2014, olaparib (Lynparza) became the first PARP (Poly(ADP-ribose) polymerase) inhibitor to be approved for the treatment of cancer. When used as single agents, PARP inhibitors can selectively target tumour cells with BRCA1 or BRCA2 tumour suppressor gene mutations through synthetic lethality. However, PARP inhibition also shows considerable promise when used together with other therapeutic agents. Here, we summarise both the pre-clinical and clinical evidence for the utility of such combinations and discuss the future prospects and challenges for PARP inhibitor combinatorial therapies...
December 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27931836/erythropoietin-and-thrombopoietin-mimetics-natural-alternatives-to-erythrocyte-and-platelet-disorders
#15
REVIEW
Usha Gutti, Satya Ratan Pasupuleti, Itishri Sahu, Aneesh Kotipalli, Ram Babu Undi, Ravinder Kandi, Raja Gopal Venakata Saladi, Ravi Kumar Gutti
Erythropoietin (EPO) and thrombopoietin (TPO) plays a major role in the regulation of hematopoietic development. Though, blood transfusion was the most widely used method to treat low blood count, over the years with advancements in recombinant technology and drug designing, the EPO and TPO mimetics are dominating the therapeutics industry. On the other hand, the recombinant human EPO and TPO are associated either with reduced half-life or immune reactions. The restoration of alternate medicine in recent years has the hope to overcome limitations associated with recombinant technology, to treat various disorder including blood diseases, with low to no side effects...
December 2016: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/27931288/therapeutic-injection-of-a-c-type-cpg-odn-induced-an-antitumor-immune-response-in-c57-bl6-mice-of-orthotopically-transplanted-hepatocellular-carcinoma
#16
Huijie Jia, Tiesuo Zhao, Di Zou, Xiaolong Jia, Ji Gao, Xiangfeng Song
Synthetic CpG oligodeoxynucleotides (ODNs), as TLR9 agonists, have been found to play a possible role in antitumor effect. In order to determine the effect of YW002, known as a C-type CpG ODN, on the treatment of hepatocellular carcinoma (HCC), which is one of the most aggressive carcinomas, we chose to inject YW002 at the doses of 12.5 g and 25 g per mouse 7 days post-tumor challenge. The survival rate of mice was recorded every day. On day 14 postinjection, five mice in each group were bled and randomly sacrificed...
May 2016: Oncology Research
https://www.readbyqxmd.com/read/27931220/native-musk-and-synthetic-musk-ketone-strongly-induced-the-growth-repression-and-the-apoptosis-of-cancer-cells
#17
Ling Xu, Yi Cao
BACKGROUND: Musk is widely used in clinical practice for its anti-cancer properties. Here, we treated various types of cancer using musk to determine which cancers are sensitive to musk treatment. We also compared effects of native musk and synthetic musk ketone in cancer cells. Furthermore, we investigated mechanisms underlying effects of musk. METHODS: Twenty two cancer cell lines were treated with musk. Cell proliferation and apoptosis analyses were carried out...
December 8, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27931164/the-cleavage-site-preference-of-the-porcine-pepsin-on-the-n-terminal-%C3%AE-1-chain-of-bovine-type-i-collagen-a-focal-analysis-with-mass-spectrometry
#18
Jun Qian, Shinji Ito, Junko Satoh, Hongmin Geng, Keisuke Tanaka, Shunji Hattori, Kenji Kojima, Teisuke Takita, Kiyoshi Yasukawa
Bovine type I collagen consists of two α1 and one α2 chains, containing the internal triple helical regions and the N- and C-terminal telopeptides. In industries, it is frequently digested with porcine pepsin to produce a triple helical collagen without the telopeptides. However, the digestion mechanism is not precisely understood. Here, we performed a mass spectrometric analysis of the pepsin digest of the N-terminal telopeptide pQLSYGYDEKSTGISVP (1-16) in the α1 chain. When purified collagen was digested, pQLSYGY (1-6) and pQLSYGYDEKSTG (1-12) were identified, while DEKSTG (7-12) was not...
December 9, 2016: Bioscience, Biotechnology, and Biochemistry
https://www.readbyqxmd.com/read/27931138/medicinal-plants-and-natural-products-in-amelioration-of-arsenic-toxicity-a-short-review
#19
Sanijb Bhattacharya
CONTEXT: Chronic arsenic toxicity (arsenicosis) is considered a serious public health menace worldwide, as there is no specific, safe, and efficacious therapeutic management of arsenicosis. OBJECTIVES: To collate the studies on medicinal plants and natural products with arsenic toxicity ameliorative effect, active pre-clinically and/or clinically. METHODS: Literature survey was carried out by using Google, Scholar Google and Pub-Med. Only the scientific journal articles found on the internet for last two decades were considered...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/27931099/aggregation-of-elongated-colloids-in-water
#20
Lei Wu, Carlos P Ortiz, Douglas J Jerolmack
Colloidal aggregation is a canonical example of disordered growth far from equilibrium, and has been extensively studied for the case of spherical monomers. Many particles encountered in industry and the environment are highly elongated, however, and the control of particle shape on aggregation kinetics and structure is not well known. Here we explore this control in laboratory experiments that document aqueous diffusion and aggregation of two different elongated colloids: natural asbestos fibers and synthetic glass rods, with similar aspect ratios of about 5:1...
December 9, 2016: Langmuir: the ACS Journal of Surfaces and Colloids
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