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https://www.readbyqxmd.com/read/28521959/cancer-cell-death-induced-by-nanomagnetolectin
#1
Dina M M AlSadek, Haitham A Badr, Tamer A Al-Shafie, Sabry M El-Bahr, Motawa E El-Houseini, Leyla B Djansugurova, Chen-Zhong Li, Hafiz Ahmed
Magnetic nanoparticles represent a new paradigm for molecular targeting therapy in cancer. However, the transformative targeting potential of magnetic nanoparticles has been stymied by a key obstacle-safe delivery to specified target cells in vivo. As cancer cells grow under nutrient deprivation and hypoxic conditions and decorate cell surface with excessive sialoglycans, sialic acid binding lectins might be suitable for targeting cancer cells in vivo. Here we explore the potential of magnetic nanoparticles functionalized with wheat germ lectin (WGA) conjugate, so-called nanomagnetolectin, as apoptotic targetable agents for prostate cancer...
May 10, 2017: European Journal of Cell Biology
https://www.readbyqxmd.com/read/28497359/the-pattern-of-thalamocortical-and-brain-stem-projections-to-the-vibrissae-related-sensory-and-motor-cortices-in-de-whiskered-congenital-hypothyroid-rats
#2
Mohammad Reza Afarinesh, Gila Behzadi
The present study is designed to investigate the plastic organization of the thalamo-cortical (TC) and brain stem afferents of whisker primary sensory (wS1) and motor (wM1) cortical areas in congenital hypothyroid (CH) pups following whisker deprivation (WD) from neonatal to adolescence period. Maternal hypothyroidism was induced by adding propylthiouracil (PTU) to the drinking water from early embryonic day 16 to postnatal day (PND) 60. Pregnant rats were divided into intact and CH groups (n = 8). In each group, the total whiskers of pups (4 of 8) were trimmed continuously from PND 1 to PND 60...
May 11, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28481304/roles-of-glycoproteins-in-the-diagnosis-and-differential-diagnosis-of-chronic-and-latent-keshan-disease
#3
Sen Wang, Zheng Fan, Bing Zhou, Yingting Wang, Peiru Du, Wuhong Tan, Mikko J Lammi, Xiong Guo
We aimed to explore the roles of glycoproteins in the pathogenesis of chronic and latent Keshan disease (CKD and LKD), and screen the lectins as indicators of significant differences in glycoproteins of KD saliva and serum. Blood and saliva were collected from 50 CKD, 50 LKD patients and 54 normal individuals. Saliva and serum lectin microarrays and saliva and serum microarrays were used to screen and verify the differences in the levels of lectin among the three groups. In the male saliva lectin microarray, Solanum tuberosum (potato) lectin (STL) and other 9 lectins showed differences between CKD and normal; STL and other 9 lectins showed differences between LKD and normal; Aleuria aurantia lectin (AAL) and other 15 lectins showed differences between CKD and LKD...
May 8, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28450392/o-linked-n-acetylglucosamine-transferase-1-regulates-global-histone-h4-acetylation-via-stabilization-of-the-non-specific-lethal-protein-nsl3
#4
Dong-Lu Wu, Lin-Hong Zhao, Zhi-Tong Feng, Chao Yu, Jian Ding, Ling-Yao Wang, Fei Wang, Da Liu, Hui-Hui Zhu, Fei-Yang Xing, Joan W Conaway, Ronald C Conaway, Yong Cai, Jing-Ji Jin
The human MOF-containing histone acetyltransferase (HAT) NSL (non-specific lethal) complex comprises 9 subunits including the O-linked N-acetylglucosamine (O-GlcNAc) transferase (isoform 1) (OGT1). However, whether O-GlcNAc transferase activity of OGT1 controls HAT activity of the NSL complex and whether OGT1 physically interacts with the other NSL complex subunits remains unclear. Here, we demonstrate that OGT1 regulates the activity of the NSL complex by mainly acetylating histone H4K16, K5, and K8 via O-GlcNAcylation and stabilization of the NSL complex subunit NSL3...
April 27, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28446532/next-generation-sequencing-ngs-analysis-on-single-circulating-tumor-cells-ctcs-with-no-need-of-whole-genome-amplification-wga
#5
Raffaele Palmirotta, Domenica Lovero, Erica Silvestris, Claudia Felici, Davide Quaresmini, Paola Cafforio, Franco Silvestris
BACKGROUND: Isolation and genotyping of circulating tumor cells (CTCs) is gaining an increasing interest by clinical researchers in oncology not only for investigative purposes, but also for concrete application in clinical practice in terms of diagnosis, prognosis and decision treatment with targeted therapies. For the mutational analysis of single CTCs, the most advanced biotechnology methodology currently available includes the combination of whole genome amplification (WGA) followed by next-generation sequencing (NGS)...
May 2017: Cancer Genomics & Proteomics
https://www.readbyqxmd.com/read/28444133/increased-collagen-within-the-transverse-tubules-in-human-heart-failure
#6
David J Crossman, Xin Shen, Mia Jüllig, Michelle Munro, Yufeng Hou, Martin Middleditch, Darshan Shrestha, Amy Li, Sean Lal, Cristobal G Dos Remedios, David Baddeley, Peter N Ruygrok, Christian Soeller
Aims: In heart failure transverse-tubule (t-tubule) remodelling disrupts calcium release, and contraction. T-tubules in human failing hearts exhibit increased labelling by wheat germ agglutinin (WGA), a lectin that binds to the dystrophin-associated glycoprotein complex. We hypothesized changes in this complex may explain the increased WGA labelling and contribute to t-tubule remodelling in the failing human heart. In this study we sought to identify the molecules responsible for this increased WGA labelling...
April 20, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28422419/carbohydrate-analog-microarrays-for-identification-of-lectin-selective-ligands
#7
Injae Shin, Ji Young Hyun, Cheol Wan Park, Yanna Liu, Daeun Kwon, Seong-Hyun Park, Sungjin Park, Jaeyoung Pai
Fifty five mono- and disaccharide analogs were prepared and used for construction of microarrays to uncover lectin-selective ligands. The microarray study shows that two disaccharide analogs, 28' and 44', selectively bind to S. tuberosum lectin (STL) and wheat germ agglutinin (WGA), respectively. The results of cell studies also indicate that 28' and 44' selectively block binding of STL and WGA to mammalian cells unlike a natural ligand LacNAc that suppresses binding of both STL and WGA to cells.
April 19, 2017: Chembiochem: a European Journal of Chemical Biology
https://www.readbyqxmd.com/read/28408603/single-cell-whole-genome-analyses-by-linear-amplification-via-transposon-insertion-lianti
#8
Chongyi Chen, Dong Xing, Longzhi Tan, Heng Li, Guangyu Zhou, Lei Huang, X Sunney Xie
Single-cell genomics is important for biology and medicine. However, current whole-genome amplification (WGA) methods are limited by low accuracy of copy-number variation (CNV) detection and low amplification fidelity. Here we report an improved single-cell WGA method, Linear Amplification via Transposon Insertion (LIANTI), which outperforms existing methods, enabling micro-CNV detection with kilobase resolution. This allowed direct observation of stochastic firing of DNA replication origins, which differs from cell to cell...
April 14, 2017: Science
https://www.readbyqxmd.com/read/28398642/wga-alexa-conjugates-for-axonal-tracing
#9
Sabrina L Levy, Joshua J White, Elizabeth P Lackey, Lindsey Schwartz, Roy V Sillitoe
Anatomical labeling approaches are essential for understanding brain organization. Among these approaches are various methods of performing tract tracing. However, a major hurdle to overcome when marking neurons in vivo is visibility. Poor visibility makes it challenging to image a desired neuronal pathway so that it can be easily differentiated from a closely neighboring pathway. As a result, it becomes impossible to analyze individual projections or their connections. The tracer that is chosen for a given purpose has a major influence on the quality of the tracing...
April 10, 2017: Current Protocols in Neuroscience
https://www.readbyqxmd.com/read/28397141/differentiation-dependent-rearrangements-of-actin-filaments-and-microtubules-hinder-apical-endocytosis-in-urothelial-cells
#10
Larisa Tratnjek, Rok Romih, Mateja Erdani Kreft
During differentiation, superficial urothelial cells (UCs) of the urinary bladder form the apical surface, which is almost entirely covered by urothelial plaques containing densely packed uroplakin particles. These urothelial plaques are the main structural components of the blood-urine permeability barrier in the urinary bladder. We have shown previously that endocytosis from the apical plasma membrane decreases during urothelial cell differentiation. Here, we investigated the role of actin filament and microtubule rearrangements in apical endocytosis of differentiating UCs cells using hyperplastic and normoplastic porcine urothelial models...
April 10, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28361040/different-phenotypes-of-mature-biofilm-in-flavobacterium-psychrophilum-share-a-potential-for-virulence-that-differs-from-planktonic-state
#11
Héctor A Levipan, Ruben Avendaño-Herrera
Flavobacterium psychrophilum is the etiological agent of bacterial coldwater disease and the rainbow trout fry syndrome in salmonid aquaculture worldwide. However, there have been few studies into the capacity of F. psychrophilum to form biofilms and how these cellular accretions differ from planktonic cells or how they affect potential virulence. We evaluated the biofilm formation by three Chilean isolates of F. psychrophilum (LM-02-Fp, LM-06-Fp, and LM-13-Fp) and two non-Chilean strains (JIP02/86 and NCMB1947(T)), and compared biofilm and planktonic states to obtain insights into expression differences of virulence- and biofilm-related genes (VBRGs)...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28359935/a-large-increase-of-sour-taste-receptor-cells-in-skn-1-deficient-mice-does-not-alter-the-number-of-their-sour-taste-signal-transmitting-gustatory-neurons
#12
Naohiro Maeda, Masataka Narukawa, Yoshiro Ishimaru, Kurumi Yamamoto, Takumi Misaka, Keiko Abe
The connections between taste receptor cells (TRCs) and innervating gustatory neurons are formed in a mutually dependent manner during development. To investigate whether a change in the ratio of cell types that compose taste buds influences the number of innervating gustatory neurons, we analyzed the proportion of gustatory neurons that transmit sour taste signals in adult Skn-1a(-/-) mice in which the number of sour TRCs is greatly increased. We generated polycystic kidney disease 1 like 3-wheat germ agglutinin (pkd1l3-WGA)/Skn-1a(+/+) and pkd1l3-WGA/Skn-1a(-/-) mice by crossing Skn-1a(-/-) mice and pkd1l3-WGA transgenic mice, in which neural pathways of sour taste signals can be visualized...
March 28, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28356418/impact-of-contaminating-dna-in-whole-genome-amplification-kits-used-for-metagenomic-shotgun-sequencing-for-infection-diagnosis
#13
Matthew Thoendel, Patricio Jeraldo, Kerryl E Greenwood-Quaintance, Janet Yao, Nicholas Chia, Arlen D Hanssen, Matthew P Abdel, Robin Patel
Whole genome amplification (WGA) is a useful tool for amplification of very small quantities of DNA for many uses, including metagenomic shotgun sequencing for infection diagnosis. Depending on the application, background DNA from WGA kits can be problematic. Three WGA kits were tested for their utility in a metagenomics approach to identify pathogens in sonicate fluid comprised of biofilms and other materials dislodged from the surfaces of explanted prosthetic joints using sonication. The Illustra Genomiphi V2, Illustra Single Cell Genomiphi, and Qiagen REPLI-g Single Cell kits were tested on identical sonicate fluid samples...
March 29, 2017: Journal of Clinical Microbiology
https://www.readbyqxmd.com/read/28344519/assessment-of-repli-g-multiple-displacement-whole-genome-amplification-wga-techniques-for-metagenomic-applications
#14
Sofia Ahsanuddin, Ebrahim Afshinnekoo, Jorge Gandara, Mustafa Hakyemezoğlu, Daniela Bezdan, Samuel Minot, Nick Greenfield, Christopher E Mason
Amplification of minute quantities of DNA is a fundamental challenge in low-biomass metagenomic and microbiome studies because of potential biases in coverage, guanine-cytosine (GC) content, and altered species abundances. Whole genome amplification (WGA), although widely used, is notorious for introducing artifact sequences, either by amplifying laboratory contaminants or by nonrandom amplification of a sample's DNA. In this study, we investigate the effect of REPLI-g multiple displacement amplification (MDA; Qiagen, Valencia, CA, USA) on sequencing data quality and species abundance detection in 8 paired metagenomic samples and 1 titrated, mixed control sample...
April 2017: Journal of Biomolecular Techniques: JBT
https://www.readbyqxmd.com/read/28340305/the-clinical-application-of-ngs-based-snp-haplotyping-for-pgd-of-hb-h-disease
#15
Linjun Chen, Zhenyu Diao, Zhipeng Xu, Jianjun Zhou, Guijun Yan, Haixiang Sun
This study investigated the usefulness of next-generation sequencing (NGS)-based single nucleotide polymorphism (SNP) haplotyping for preimplantation genetic diagnosis (PGD) of hemoglobin H (Hb H) disease. Multiple displacement amplification (MDA) was used for whole genome amplification (WGA) of biopsied trophectoderm (TE) cells. Gap-PCR and NGS-based SNP haplotyping was used to distinguish the two genotypes of -α(3.7)/αα and -(SEA)/αα for PGD of Hb H disease. One out of the ten blastocysts (B11) was successfully diagnosed as genotype -α(3...
June 2017: Systems Biology in Reproductive Medicine
https://www.readbyqxmd.com/read/28280340/wheat-germ-agglutinin-conjugated-liposomes-incorporated-with-cardiolipin-to-improve-neuronal-survival-in-alzheimer-s-disease-treatment
#16
Yung-Chih Kuo, Che-Yu Lin, Jay-Shake Li, Yung-I Lou
Curcumin (CRM) and nerve growth factor (NGF) were entrapped in liposomes (LIP) with surface wheat germ agglutinin (WGA) to downregulate the phosphorylation of kinases in Alzheimer's disease (AD) therapy. Cardiolipin (CL)-conjugated LIP carrying CRM (CRM-CL/LIP) and also carrying NGF (NGF-CL/LIP) were used with AD models of SK-N-MC cells and Wistar rats after an insult with β-amyloid peptide (Aβ). We found that CRM-CL/LIP inhibited the expression of phosphorylated p38 (p-p38), phosphorylated c-Jun N-terminal kinase (p-JNK), and p-tau protein at serine 202 and prevented neurodegeneration of SK-N-MC cells...
2017: International Journal of Nanomedicine
https://www.readbyqxmd.com/read/28277825/the-efficacy-of-wga-modified-daunorubicin-anti-resistant-liposomes-in-treatment-of-drug-resistant-mcf-7-breast-cancer
#17
Shuang Liu, Xiao-Li Song, Yan-Hong Wang, Xiao-Min Wang, Yao Xiao, Xin Wang, Lan Cheng, Xue-Tao Li
BACKGROUND: Breast cancer is the most common malignancy and remains a leading cause of cancer-related deaths in female. Chemotherapy failure of breast cancer is mainly associated with multidrug resistance of cancer cells. PURPOSE: The WGA modified daunorubicin anti-resistant liposomes were developed for circumventing the multidrug resistance and eliminating cancer cells. METHODS: WGA was modified on liposomal surface for increasing the intracellular uptake...
February 21, 2017: Journal of Drug Targeting
https://www.readbyqxmd.com/read/28259144/sag-qc-quality-control-of-single-amplified-genome-information-by-subtracting-non-target-sequences-based-on-sequence-compositions
#18
Toru Maruyama, Tetsushi Mori, Keisuke Yamagishi, Haruko Takeyama
BACKGROUND: Whole genome amplification techniques have enabled the analysis of unexplored genomic information by sequencing of single-amplified genomes (SAGs). Whole genome amplification of single bacteria is currently challenging because contamination often occurs in experimental processes. Thus, to increase the confidence in the analyses of sequenced SAGs, bioinformatics approaches that identify and exclude non-target sequences from SAGs are required. Since currently reported approaches utilize sequence information in public databases, they have limitations when new strains are the targets of interest...
March 4, 2017: BMC Bioinformatics
https://www.readbyqxmd.com/read/28249214/lectin-magnetic-separation-lms-for-isolation-of-toxoplasma-gondii-oocysts-from-concentrated-water-samples-prior-to-detection-by-microscopy-or-qpcr
#19
Jemere Bekele Harito, Andrew T Campbell, Kristoffer Relling Tysnes, J P Dubey, Lucy J Robertson
Although standard methods for analyzing water samples for the protozoan parasites Cryptosporidium spp. and Giardia duodenalis are available and widely used, equivalent methods for analyzing water samples for Toxoplasma gondii oocysts are lacking. This is partly due to the lack of a readily available, reliable immunomagnetic separation technique (IMS). Here we investigated the use of lectin-magnetic separation (LMS) for isolating T. gondii oocysts from water sample concentrates, with subsequent detection by microscopy or molecular methods...
May 1, 2017: Water Research
https://www.readbyqxmd.com/read/28237713/poly-l-glutamic-acid-drug-delivery-system-for-the-intravesical-therapy-of-bladder-cancer-using-wga-as-targeting-moiety
#20
C Apfelthaler, M Anzengruber, F Gabor, M Wirth
In the management of bladder cancer, surgical resection of the tumour is usually followed by intravesical instillation of immunomodulatives and/or chemotherapeutics. The purpose of this local intravesical therapy is to eliminate residual malignant cells after surgical intervention. The main limitation of a localised adjuvant therapy is the insufficient concentration of the active pharmaceutical ingredient (API) in malignant cells due to the unique structure of the human urothelium making it an exclusively hard to overcome barrier in the human body...
February 22, 2017: European Journal of Pharmaceutics and Biopharmaceutics
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