Abstract:
:Cyclic guanosine monophosphate (cGMP) is a universal second messenger that is synthesized from guanosine triphosphate (GTP) by guanylyl cyclases (GCs) and hydrolyzed into guanosine monophosphate (GMP) by phosphodiesterases (PDEs). Small-molecule drugs that induce high cGMP levels in specialized tissues by boosting GC activity or inhibiting PDE activity have become the predominant treatment strategy for a wide range of medical conditions, including congestive heart failure, pulmonary hypertension, atherosclerosis-based claudication and erectile dysfunction. By fusing the cGMP receptor protein (CRP) of Rhodospirillum centenum to the Herpes simplex-derived transactivation domain VP16, we created a novel synthetic mammalian cGMP-sensing transcription factor (GTA) that activates synthetic promoters (PGTA) containing newly identified GTA-specific operator sites in a concentration-dependent manner. In cell lines expressing endogenous natriuretic peptide receptor A (NPR-A) (HeLa), GTA/PGTA-driven transgene expression was induced by B-type natriuretic peptide (BNP; Nesiritide(®)) in a concentration-dependent manner, which activated NPR-A׳s intracellular GC domain and triggered a corresponding cGMP surge. Ectopic expression of NPR-A in NPR-A-negative cell lines (HEK-293T) produced high cGMP levels and mediated maximum GTA/PGTA-driven transgene expression, which was suppressed by co-expression of PDEs (PDE-3A, PDE-5A and PDE-9A) and was re-triggered by the corresponding PDE inhibitor drugs (Pletal(®), Perfan(®), Primacor(®) (PDE-3A), Viagra(®), Levitra(®), Cialis(®) (PDE-5A) and BAY73-6691 (PDE-9A)). Mice implanted with microencapsulated designer cells co-expressing the GTA/PGTA device with NPR-A and PDE-5A showed control of blood SEAP levels through administration of sildenafil (Viagra(®)). Designer cells engineered for PDE inhibitor-modulated transgene expression may provide a cell-based PDE-targeting drug discovery platform and enable drug-adjusted gene- and cell-based therapies.
journal_name
Metab Engjournal_title
Metabolic engineeringauthors
Kim T,Folcher M,Charpin-El Hamri G,Fussenegger Mdoi
10.1016/j.ymben.2015.03.016subject
Has Abstractpub_date
2015-05-01 00:00:00pages
169-179eissn
1096-7176issn
1096-7184pii
S1096-7176(15)00042-7journal_volume
29pub_type
杂志文章abstract::Successful redirection of endogenous resources into heterologous pathways is a central tenet in the creation of efficient microbial cell factories. This redirection, however, may come at a price of poor biomass accumulation, reduced cofactor regeneration and low recombinant enzyme expression. In this study, we propose...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2012.08.006
更新日期:2012-11-01 00:00:00
abstract::Fumaric acid, a dicarboxylic acid used as a food acidulant and in manufacturing synthetic resins, can be produced from glucose in fermentation by Rhizopus oryzae. However, the fumaric acid yield is limited by the co-production of ethanol and other byproducts. To increase fumaric acid production, overexpressing endogen...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2012.07.001
更新日期:2012-09-01 00:00:00
abstract::Synthesis and accumulation of plant oils in the entire vegetative biomass offers the potential to deliver yields surpassing those of oilseed crops. However, current levels still fall well short of those typically found in oilseeds. Here we show how transcriptome and biochemical analyses pointed to a futile cycle in a ...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2016.12.007
更新日期:2017-01-01 00:00:00
abstract::Saccharomyces cerevisiae lacks the ability to ferment the pentose sugar xylose that is the second most abundant sugar in nature. Therefore two different xylose catabolic pathways have been heterologously expressed in S. cerevisiae. Whereas the xylose reductase (XR)-xylitol dehydrogenase (XDH) pathway leads to the prod...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2011.05.005
更新日期:2011-09-01 00:00:00
abstract::Succinic acid is a platform chemical of recognized industrial value and accordingly faces a continuous challenge to enable manufacturing from most attractive raw materials. It is mainly produced from glucose, using microbial fermentation. Here, we explore and optimize succinate production from sucrose, a globally appl...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2017.10.003
更新日期:2017-11-01 00:00:00
abstract::Development of sustainable biological process for the production of bulk chemicals from renewable feedstock is an important goal of white biotechnology. Ethylene glycol (EG) is a large-volume commodity chemical with an annual production of over 20 million tons, and it is currently produced exclusively by petrochemical...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2015.10.013
更新日期:2016-01-01 00:00:00
abstract::Current studies on microbial isoprene biosynthesis have mostly focused on regulation of the upstream mevalonic acid (MVA) or methyl-erythritol-4-phosphate (MEP) pathway. However, the downstream bottleneck restricting isoprene biosynthesis capacity caused by the weak expression and low activity of plant isoprene syntha...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2016.12.011
更新日期:2017-01-01 00:00:00
abstract::Geobacter species are among the most effective microorganisms known for the bioremediation of radioactive and toxic metals in contaminated subsurface environments and for converting organic compounds to electricity in microbial fuel cells. However, faster rates of electron transfer could aid in optimizing these proces...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2008.06.005
更新日期:2008-09-01 00:00:00
abstract::Xylose, which is a major constituent of lignocellulosic biomass, was utilized for the production of poly(lactate-co-3-hydroxybutyrate) [P(LA-co-3HB)], having transparent and flexible properties. The recombinant Escherichia coli JW0885 (pflA(-)) expressing LA-polymerizing enzyme (LPE) and monomer supplying enzymes grow...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2012.11.007
更新日期:2013-01-01 00:00:00
abstract::We present a model-based method, designated Inverse Metabolic Control Analysis (IMCA), which can be used in conjunction with classical Metabolic Control Analysis for the analysis and design of cellular metabolism. We demonstrate the capabilities of the method by first developing a comprehensively curated kinetic model...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2016.04.002
更新日期:2016-09-01 00:00:00
abstract::Metabolic engineering requires multiple rounds of strain construction to evaluate alternative pathways and enzyme concentrations. Optimizing multigene pathways stepwise or by randomly selecting enzymes and expression levels is inefficient. Here, we apply methods from design of experiments (DOE) to guide the constructi...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.05.002
更新日期:2018-07-01 00:00:00
abstract::Plants are versatile chemists producing a tremendous variety of specialized compounds. Here, we describe the engineering of entirely novel metabolic pathways in planta enabling generation of halogenated indigo precursors as non-natural plant products. Indican (indolyl-β-D-glucopyranoside) is a secondary metabolite cha...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.02.003
更新日期:2018-03-01 00:00:00
abstract::Valine, which is one of the branched-chain amino acids (BCAAs) essential for humans, is widely used in animal feed, dietary supplements and pharmaceuticals. At the commercial level, valine is usually produced by bacterial fermentation from glucose. However, valine biosynthesis can also proceed in the yeast Saccharomyc...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.02.011
更新日期:2018-03-01 00:00:00
abstract::Flavonoids exert a wide variety of biological functions that are highly attractive for the pharmaceutical and healthcare industries. However, their application is often limited by low water solubility and poor bioavailability, which can generally be relieved through glycosylation. Glycosyltransferase C (GtfC), a metag...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2019.07.002
更新日期:2019-09-01 00:00:00
abstract::Utilization of Candida glabrata overproducing pyruvate is a promising strategy for high-level acetoin production. Based on the known regulatory and metabolic information, acetaldehyde and thiamine were fed to identify the key nodes of carboligase activity reaction (CAR) pathway and provide a direction for engineering ...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2013.12.005
更新日期:2014-03-01 00:00:00
abstract::Lipogenic organisms provide an ideal platform for biodiesel and oleochemical production. Through our previous rational metabolic engineering efforts, lipogenesis titers in Yarrowia lipolytica were significantly enhanced. However, the resulting strain still suffered from decreased biomass generation rates. Here, we emp...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2015.02.003
更新日期:2015-05-01 00:00:00
abstract::A 2D-NMR method based on zero-quantum filtered (ZQF-) TOtal Correlation SpectroscopY (TOCSY) was applied to measure 13C-enrichments in complex mixtures of 13C-labeled metabolites generated in carbon-labeling experiments. Using ZQF-TOCSY, more than 30 13C-enrichments could be potentially measured from the analysis of a...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2007.03.001
更新日期:2007-05-01 00:00:00
abstract::The biological nitrogen fixation carried out by some Bacteria and Archaea is one of the most attractive alternatives to synthetic nitrogen fertilizers. In this study we compared the effect of controlling the maximum activation state of the Azotobacter vinelandii glutamine synthase by a point mutation at the active sit...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2014.03.002
更新日期:2014-05-01 00:00:00
abstract::Metabolic pathways in cells must be sufficiently robust to tolerate fluctuations in expression levels and changes in environmental conditions. Perturbations in expression levels may lead to system failure due to the disappearance of a stable steady state. Increasing evidence has suggested that biological networks have...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2014.06.006
更新日期:2014-09-01 00:00:00
abstract::Corynebacterium glutamicum was metabolically engineered for the production of glutaric acid, a C5 dicarboxylic acid that can be used as platform building block chemical for nylons and plasticizers. C. glutamicum gabT and gabD genes and Pseudomonas putida davT and davD genes encoding 5-aminovalerate transaminase and gl...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.08.007
更新日期:2019-01-01 00:00:00
abstract::Directed molecular evolution is a recursive process of controlled genetic diversification and functional screening. The success of this approach is dependent on both the quality of the genetic diversity and the ability to accurately screen a large population of individual genetic variants for those having improved fun...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2004.09.001
更新日期:2005-01-01 00:00:00
abstract::In this study strains of Ralstonia eutropha H16 and Pseudomonas putida KT2440 were engineered which are suitable for biotechnological production of 2-methylcitric acid (2MC). Analysis of a previous mutant of R. eutropha able to accumulate 2MC recommended this strain as a candidate for fermentative production of 2MC. T...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2006.05.007
更新日期:2006-11-01 00:00:00
abstract::One of the key drivers for successful metabolic engineering in microbes is the efficacy by which genomes can be edited. As such there are many methods to choose from when aiming to modify genomes, especially those of model organisms like yeast and bacteria. In recent years, clustered regularly interspaced palindromic ...
journal_title:Metabolic engineering
pub_type: 杂志文章,评审
doi:10.1016/j.ymben.2015.12.003
更新日期:2016-03-01 00:00:00
abstract::Oleaginous yeasts are valuable systems for biosustainable production of hydrocarbon-based chemicals. Yarrowia lipolytica is one of the best characterized of these yeast with respect to genome annotation and flux analysis of metabolic processes. Nonetheless, progress is hampered by a dearth of genome-wide tools enablin...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2018.05.008
更新日期:2018-07-01 00:00:00
abstract::Retroviral vectors released from mouse-derived packaging cell lines are inactivated in human sera by naturally occurring antibodies due to the recognition of Galalpha1,3Galbeta1,4GlcNAc (alphagal-epitope) decorated surface proteins. In this study, an extensive analysis of the glycosylation potential of NIH3T3-derived ...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2005.02.004
更新日期:2005-05-01 00:00:00
abstract::This paper presents a new mathematical framework for modeling of in vivo dynamics and for metabolic re-design: the linlog approach. This approach is an extension of metabolic control analysis (MCA), valid for large changes of enzyme and metabolite levels. Furthermore, the presented framework combines MCA with kinetic ...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/s1096-7176(03)00025-9
更新日期:2003-07-01 00:00:00
abstract::β-Oxidation is the ubiquitous metabolic strategy to break down fatty acids. In the course of this four-step process, two carbon atoms are liberated per cycle from the fatty acid chain in the form of acetyl-CoA. However, typical β-oxidative strategies are not restricted to monocarboxylic (fatty) acid degradation only, ...
journal_title:Metabolic engineering
pub_type: 杂志文章,评审
doi:10.1016/j.ymben.2017.05.004
更新日期:2017-07-01 00:00:00
abstract::Biotin is an archetypal vitamin used as cofactor for carboxylation reactions found in all forms of life. However, biotin biosynthesis is an elaborate multi-enzymatic process and metabolically costly. Moreover, many industrially relevant organisms are incapable of biotin synthesis resulting in the requirement to supple...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1016/j.ymben.2016.12.013
更新日期:2017-03-01 00:00:00
abstract::Previous work in our laboratories investigated the use of methyl alpha-glucoside (alpha-MG), a glucose analog that shares a phosphotransferase system with glucose, to modulate glucose uptake and therefore reduce acetate accumulation. The results of that study showed a significant improvement in batch culture performan...
journal_title:Metabolic engineering
pub_type: 杂志文章
doi:10.1006/mben.1999.0141
更新日期:2000-04-01 00:00:00
abstract::The construction of large DNA molecules that encode pathways, biological machinery, and entire genomes has been limited to the reproduction of natural sequences. However, now that robust methods for assembling hundreds of DNA fragments into constructs > 20 kb are readily available, optimization of large genetic elemen...
journal_title:Metabolic engineering
pub_type: 杂志文章,评审
doi:10.1016/j.ymben.2012.02.005
更新日期:2012-05-01 00:00:00