Abstract：
:MicroRNAs (miRNAs) are gaining recognition as essential regulators involved in many biological processes, and they are emerging as therapeutic targets for treating disease. Here, we introduce a method for effective delivery of anti-miRNA oligonucleotides (AMOs) using functionalized gold nanoparticles (AuNPs). To demonstrate the ability of AMOs to silence miRNA, we selected miR-29b, which is known to downregulate myeloid cell leukemia-1 (MCL-1), a factor responsible for promoting cell survival. We first generated AuNPs coated with cargo DNA, which was then coupled to complementary DNA linked to an antisense miR-29b sequence. When the AuNPs were delivered into HeLa cells, MCL-1 protein and mRNA levels were increased significantly. Furthermore, apoptosis induced by tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) was inhibited, proving that AMOs targeting miR-29b were effectively delivered by our innovative AuNP. In addition, we provided evidence that AuNP could deliver other AMOs against miR-21 into two independent cell lines, KGN and 293T, suggesting that the AuNP conjugates can be versatile for any AMO and cell type.
journal_name
J Biotechnoljournal_title
Journal of biotechnologyauthors
Kim JH,Yeom JH,Ko JJ,Han MS,Lee K,Na SY,Bae Jdoi
10.1016/j.jbiotec.2011.07.014subject
Has Abstractpub_date
2011-09-20 00:00:00pages
287-92issue
3eissn
0168-1656issn
1873-4863pii
S0168-1656(11)00390-7journal_volume
155pub_type
杂志文章abstract：:Different systems are being studied and used to prepare recombinant proteins for pharmaceutical use. The blood, and still more the milk, from transgenic animals appear a very attractive source of pharmaceuticals. The cells from these animals are expected to produce well-matured proteins in potentially huge amounts. Se...
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abstract：:The development of SIN-lentivectors has paved the way for the double copy vectors (DCV), which substitute the deletion in the 3'LTR with either transgenic or insulator sequences. However, the limits of this approach remain unclear. Previous results have demonstrated that transduction efficiencies of DCV carrying large...
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journal_title：Journal of biotechnology
pub_type： 杂志文章
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abstract：:Glutamate dehydrogenase is a central enzyme connecting nitrogen and carbon metabolism via its precursors ammonium and oxoglutarate and its product glutamate. In Corynebacterium glutamicum glutamate dehydrogenase is especially important, since it is a key enzyme for the biotechnological production of the flavour enhanc...
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abstract：:In this study the ability of CYP109E1 from Bacillus megaterium to metabolize vitamin D3 (VD3) was investigated. In an in vitro system using bovine adrenodoxin reductase (AdR) and adrenodoxin (Adx4-108), VD3 was converted by CYP109E1 into several products. Furthermore, a whole-cell system in B. megaterium MS941 was est...
journal_title：Journal of biotechnology
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pub_type： 杂志文章,评审
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pub_type： 杂志文章
doi：10.1016/s0168-1656(02)00301-2
更新日期：2003-03-20 00:00:00
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pub_type： 杂志文章,评审
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journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/s0168-1656(01)00276-0
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journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2015.07.020
更新日期：2015-10-20 00:00:00
abstract：:Poly(methyl methacrylate-acrylic acid) microspheres were prepared and the acid groups were activated by using either carbodiimide (CDI) or thionyl chloride (SOCl2). alpha-Amylase was covalently bound on these activated microspheres. The properties of the immobilized enzyme were investigated and compared with those of ...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/s0168-1656(97)00179-x
更新日期：1998-02-05 00:00:00
abstract：:Streptomyces sp. strain CFMR 7, which naturally degrades rubber, was isolated from a rubber plantation. Whole genome sequencing and assembly resulted in 2 contigs with total genome size of 8.248 Mb. Two latex clearing protein (lcp) genes which are responsible for rubber degrading activities were identified. ...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2015.09.007
更新日期：2015-11-20 00:00:00
abstract：:Recombinant Volvariella volvacea endoglucanase 1 (EG1) and its catalytic module (EG1-CM) were obtained by expression in Pichia pastoris, purified by two-step chromatography, and the catalytic activities and binding capacities were compared. EG1 and EG1-CM exhibited very similar specific activities towards the soluble ...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2007.05.016
更新日期：2007-07-15 00:00:00
abstract：:The unsaturations and groups bound to the ring and to the lateral chain of lactones give a large diversity in this class of molecules. In this work we produced enzymatically a macrolactone in organic media. The substrate used was a hydroxy-fatty acid: (+)-coriolic acid and the enzymes tested were free or immobilized m...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/s0168-1656(01)00374-1
更新日期：2002-01-18 00:00:00
abstract：:In the present investigation, a detailed biochemical analysis of the high H₂ producer D1 protein mutant strain L159I-N230Y of Chlamydomonas reinhardtii, carrying a double amino acid substitution, was made. The leucine residue L159 was replaced by isoleucine, and the N230 asparagine was replaced by tyrosine. The perfor...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2011.06.019
更新日期：2012-02-20 00:00:00
abstract：:A comprehensive study on the purification and characterization of pectinolytic enzymes produced by Aspergillus niger MIUG 16 on raw materials solid-state fermentation is reported. Five pectinolytic enzymes were purified using a combination of chromatographic techniques. The properties of these homogenous enzymes were ...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2007.06.005
更新日期：2007-08-31 00:00:00
abstract：:A new current amplified immunosensor for the determination of carcinoembryonic antigen (CEA) was demonstrated in this work. The electrode architecture was fabricated by positively charged toluidine blue (TB) coated on negatively charged poly-sulfanilic acid (PSAA) modified glassy carbon electrode (GCE) surface through...
journal_title：Journal of biotechnology
pub_type： 杂志文章
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abstract：:Super-resolution fluorescence imaging methods based on reversible photoswitching of fluorophores with subsequent localization currently develop to promising tools for cellular imaging. Since most of these methods rely on the transfer of the majority of fluorophores to a non-fluorescent dark state and precise localizat...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2010.02.010
更新日期：2010-09-15 00:00:00
abstract：:Following its introduction in 1967, rifampicin has become a mainstay of therapy in the treatment of tuberculosis, leprosy and many other widespread diseases. Its potent antibacterial activity is due to specific inhibition of bacterial RNA polymerase. However, resistance to rifampicin was reported shortly after its int...
journal_title：Journal of biotechnology
pub_type： 杂志文章,评审
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更新日期：2015-05-20 00:00:00
abstract：:Acinetobacter baumannii has turned into an important threat in nosocomial outbreak infections and multidrug resistance leading to high mortality rates in the 21st century. In recent years its mortality has increased by 15% which in part could be due to lack of a rapid and sensitive diagnostic test. In this work we int...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2016.05.024
更新日期：2016-08-10 00:00:00
abstract：:Microarray analysis has become a popular and routine method in functional genomics. It is typical for such experiments to involve a small number of replicates, which causes unreliable estimates of the sample variance. Microarrays have fostered the development of new statistical methods to analyze data resulting from e...
journal_title：Journal of biotechnology
pub_type： 杂志文章
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更新日期：2009-03-10 00:00:00
abstract：:Baculovirus vectors show promise as a novel tool for gene delivery into mammalian cells and gene transfer with wild-type baculovirus has been demonstrated both in vitro and in vivo. To study expression and intracellular trafficking of foreign viral membrane proteins in baculovirus-transduced mammalian cells, the envel...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2004.06.015
更新日期：2004-10-19 00:00:00
abstract：:Enzyme engineering by molecular modelling and site-directed mutagenesis can be remarkably efficient. Directed enzyme evolution appears as a more general strategy for the isolation of catalysts as it can be applied to most chemical reactions in aqueous solutions. Selections, as opposed to screening, allow the simultane...
journal_title：Journal of biotechnology
pub_type： 杂志文章,评审
doi：10.1016/j.jbiotec.2004.03.032
更新日期：2004-09-30 00:00:00
abstract：:An O-methyltransferase SpOMT2884, originating from Streptomyces peucetius ATCC 27952, was cloned, expressed, and applied for the production of target metabolite from Escherichia coli. Biochemical characterization of the 25kDa recombinant protein by in vitro and in vivo experiments showed that SpOMT2884 was an S-adenos...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2014.05.005
更新日期：2014-08-20 00:00:00
abstract：:Structural composition and gene content of a biogas-producing microbial community from a production-scale biogas plant fed with renewable primary products was recently analyzed by means of a metagenome sequencing approach. To determine the transcriptionally active part of the same biogas community and to identify key ...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2012.01.020
更新日期：2012-04-30 00:00:00
abstract：:Deployment of the elongated flexuous virions of Turnip mosaic virus (TuMV), a potyvirus, for peptide display on their external surface has been previously reported by us. Nonetheless, both in TuMV and other potyviruses some peptides hinder the ability of the virus to infect host plants. We found that a peptide derived...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2017.06.014
更新日期：2017-07-20 00:00:00
abstract：:Protein modifications by intricate cellular machineries often redesign the structure and function of existing proteins to impact biological networks. Disulfide bond formation between cysteine (Cys) pairs is one of the most common modifications found in extracellularly-destined proteins, key to maintaining protein stru...
journal_title：Journal of biotechnology
pub_type： 杂志文章
doi：10.1016/j.jbiotec.2017.03.006
更新日期：2017-04-20 00:00:00
