Abstract：
Background:Ginsenosides are known as the principal pharmacological active constituents in Panax medicinal plants such as Asian ginseng, American ginseng, and Notoginseng. Some ginsenosides, especially the 20(R) isomers, are found in trace amounts in natural sources and are difficult to chemically synthesize. The present study provides an approach to produce such trace ginsenosides applying biotransformation through Escherichia coli modified with relevant genes. Methods:Seven uridine diphosphate glycosyltransferase (UGT) genes originating from Panax notoginseng, Medicago sativa, and Bacillus subtilis were synthesized or cloned and constructed into pETM6, an ePathBrick vector, which were then introduced into E. coli BL21star (DE3) separately. 20(R)-Protopanaxadiol (PPD), 20(R)-protopanaxatriol (PPT), and 20(R)-type ginsenosides were used as substrates for biotransformation with recombinant E. coli modified with those UGT genes. Results:E. coli engineered with GT95 syn selectively transfers a glucose moiety to the C20 hydroxyl of 20(R)-PPD and 20(R)-PPT to produce 20(R)-CK and 20(R)-F1, respectively. GTK1- and GTC1-modified E. coli glycosylated the C3-OH of 20(R)-PPD to form 20(R)-Rh2. Moreover, E. coli containing p2GT95synK1, a recreated two-step glycosylation pathway via the ePathBrich, implemented the successive glycosylation at C20-OH and C3-OH of 20(R)-PPD and yielded 20(R)-F2 in the biotransformation broth. Conclusion:This study demonstrates that rare 20(R)-ginsenosides can be produced through E. coli engineered with UTG genes.
journal_name
J Ginseng Resjournal_title
Journal of ginseng researchauthors
Yu L,Chen Y,Shi J,Wang R,Yang Y,Yang L,Zhao S,Wang Zdoi
10.1016/j.jgr.2017.09.005subject
Has Abstractpub_date
2019-01-01 00:00:00pages
116-124issue
1eissn
1226-8453issn
2093-4947pii
S1226-8453(16)30244-5journal_volume
43pub_type
杂志文章abstract：:Korean red ginseng (KRG) is used worldwide as a popular traditional herbal medicine. KRG has shown beneficial effects on cardiovascular diseases, such as atherosclerosis, diabetes, and hypertension. Up-regulation of a cytoprotective protein, heme oxygenase (HO)-1, is considered to augment the cellular defense against ...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.5142/jgr.2011.35.3.352
更新日期：2011-09-01 00:00:00
abstract：BACKGROUND:We evaluated the drug interaction profile of Red Ginseng (RG) with respect to the activities of major cytochrome P450 (CYP) enzymes and the drug transporter P-glycoprotein (P-gp) in healthy Korean volunteers. METHODS:This article describes an open-label, crossover study. CYP probe cocktail drugs, caffeine, ...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2015.11.005
更新日期：2016-10-01 00:00:00
abstract：BACKGROUND:Compound K (CK) is a bioactive derivative of ginsenoside Rb1 in Panax ginseng (Korean ginseng). Its biological and pharmacological activities have been studied in various disease conditions, although its immunomodulatory role in innate immunity mediated by monocytes/macrophages has been poorly understood. In...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2016.06.004
更新日期：2017-07-01 00:00:00
abstract：BACKGROUND:Ginsenoside Rb1 (G-Rb1), the major active constituent of ginseng, improves insulin sensitivity and exerts antidiabetic effects. We tested whether the insulin-sensitizing and antidiabetic effects of G-Rb1 results from a reduction in ectopic fat accumulation, mediated by inhibition of lipolysis in adipocytes. ...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2014.11.004
更新日期：2015-07-01 00:00:00
abstract：:In this study, photosynthetic parameters such as the net photosynthesis rate, stomatal conductance, intercellular CO2 concentration, and transpiration rate were examined in selected ginseng varieties and/or lines that are resistant (Yunpoong, HTIR 1, HTIR 2, and HTIR 3) and susceptible (Chunpoong) to high temperature ...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.5142/jgr.2012.36.4.461
更新日期：2012-10-01 00:00:00
abstract：:In this study, we have investigated the effects of total saponin from Korean red ginseng (TSKRG) on thrombin-induced platelet aggregation. TSKRG dose-dependently inhibited thrombin-induced platelet aggregation with IC50 value of about 81.1 μg/mL. In addition, TSKRG dose-dependently decreased thrombin-elevated the leve...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.5142/jgr.2013.37.176
更新日期：2013-04-01 00:00:00
abstract：:Identification of the origins of Panax ginseng has been issued in Korea scientifically and economically. We describe a metabolomics approach used for discrimination and prediction of ginseng roots from different origins in Korea. The fresh ginseng roots from six ginseng cooperative associations (Gangwon, Gaeseong, Pun...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.5142/jgr.2013.37.341
更新日期：2013-07-01 00:00:00
abstract：:Chronic liver disease, one of the most common diseases, typically arises from nonalcoholic fatty liver disease, alcoholic liver disease, chronic viral hepatitis, or hepatocellular carcinoma. Therefore, there is a pressing need for improved treatment strategies. Korean Red Ginseng has been known to have positive effect...
journal_title：Journal of ginseng research
pub_type： 杂志文章,评审
doi：10.1016/j.jgr.2016.11.004
更新日期：2017-10-01 00:00:00
abstract：Background:Korean Red Ginseng (KRG) has been known to possess many ginsenosides. These ginsenosides are used for curing cardiovascular problems. The present study show the protective potential of KRG against doxorubicin (DOX)-induced myocardial dysfunction, by assessing electrocardiographic, hemodynamic, and biochemica...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2019.03.002
更新日期：2020-05-01 00:00:00
abstract：Background:The reports about valuable oligosaccharides in ginseng are quite limited. There is an urgent need to develop a practical procedure to detect and analyze ginseng oligosaccharides. Methods:The oligosaccharide extracts from ginseng were permethylated by solid-phase methylation method and then were analyzed by ...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2019.08.001
更新日期：2020-11-01 00:00:00
abstract：BACKGROUND:Roles of immune reaction and toll-like receptor-4 (TLR-4) have widely been established in the pathogenesis of alcoholic liver disease (ALD). METHODS:We evaluated the biologic efficacy of Korean Red Ginseng (KRG), urushiol, and probiotics (Lactobacillus rhamnosus R0011 and Lactobacillus acidophilus R0052) in...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2014.04.002
更新日期：2014-07-01 00:00:00
abstract：:Jilin Province is one of the principal production bases of traditional Chinese medicine (TCM) in China with its typical preponderance in TCM resources, research and development power, and industrialization capacity. The province has 2,790 species of TCM materials in total. Over 20% of the TCM materials in common use a...
journal_title：Journal of ginseng research
pub_type： 杂志文章,评审
doi：10.1016/j.jgr.2014.05.007
更新日期：2014-10-15 00:00:00
abstract：:Our results suggested that thermal stress can lead to activation of hippocampal cell damage and reduction of memory-associated molecules in HT22 cells. These findings also provide a part of molecular rationale for the role of ginsenoside Rg5 as a potent cognitive impairment preventive compound in blocking the initiati...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2017.02.002
更新日期：2018-04-01 00:00:00
abstract：Background:Korean ginseng (Panax ginseng) plays an anti-inflammatory role in a variety of inflammatory diseases such as gastritis, hepatitis, and colitis. However, inflammation-regulatory activity of the calyx of the P. ginseng berry has not been thoroughly evaluated. To understand whether the calyx portion of the P. g...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2017.06.003
更新日期：2018-10-01 00:00:00
abstract：:Ocotillol-type saponins are one kind of tetracyclic triterpenoids, sharing a tetrahydrofuran ring. Natural ocotillol-type saponins have been discovered in Panax quinquefolius L., Panax japonicus, Hana mina, and Vietnamese ginseng. In recent years, the semisynthesis of 20(S/R)-ocotillol-type saponins has been reported....
journal_title：Journal of ginseng research
pub_type： 杂志文章,评审
doi：10.1016/j.jgr.2017.01.001
更新日期：2017-07-01 00:00:00
abstract：BACKGROUND:This study was carried out to investigate the effect of the steaming process on chemical constituents, free radical scavenging activity, and antiproliferative effect of Vietnamese ginseng. METHODS:Samples of powdered Vietnamese ginseng were steamed at 120°C for various times and their extracts were subjecte...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2013.11.015
更新日期：2014-04-01 00:00:00
abstract：:Korean red ginseng has been shown to possess a variety of biological activities. However, little is known about antiviral activity of ginsenosides of Korean red ginseng. Here, we investigated the protective effect by oral administration of various ginsenosides on the lethal infection of haemagglutinating virus of Japa...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.5142/jgr.2013.37.80
更新日期：2013-03-01 00:00:00
abstract：Background:Recently, we identified a novel ginseng-derived lysophosphatidic acid receptor ligand, called gintonin. We showed that gintonin induces [Ca2+]i transient-mediated morphological changes, proliferation, and migration in cells expressing lysophosphatidic acid receptors and that oral administration of gintonin e...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2016.12.007
更新日期：2018-01-01 00:00:00
abstract：Background:Despite the large number of studies on ginseng, pharmacological activities of ginseng seed oil (GSO) have not been established. GSO is rich in unsaturated fatty acids, mostly oleic and linoleic acids. Unsaturated fatty acids are known to exert a therapeutic effect in nonalcoholic fatty liver disease (NAFLD)....
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2017.04.010
更新日期：2018-10-01 00:00:00
abstract：Background:The biological and pharmacological effects of BST204, a fermented ginseng extract, have been reported in various disease conditions. However, its molecular action in metabolic disease remains poorly understood. In this study, we identified the antiadipogenic activity of BST204 resulting from its inhibition o...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2018.08.002
更新日期：2020-01-01 00:00:00
abstract：BACKGROUND:Radiotherapy is one of the most important modalities in cancer treatment; however, normal tissue damage is a serious concern. Drug development for the protection or reduction of normal tissue damage is therefore a clinical issue. Herein, we evaluated the protective properties of Panax ginseng Meyer and its c...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2016.02.006
更新日期：2017-04-01 00:00:00
abstract：:The transformation of ginsenoside Rb1 into a specific minor ginsenoside using Aspergillus niger KCCM 11239, as well as the identification of the transformed products and the pathway via thin layer chromatography and high performance liquid chromatography were evaluated to develop a new biologically active material. Th...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2013.11.008
更新日期：2014-01-01 00:00:00
abstract：Background:Ginsenoside Rg3, a derivative of steroidal saponins abundant in ginseng, has a range of effects on cancer cells, including anti-cell proliferation and anti-inflammation activity. Here, we investigate two long noncoding RNAs (lncRNAs), STXBP5-AS1 and RFX3-AS1, which are hypomethylated and hypermethylated in t...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2019.02.004
更新日期：2019-10-01 00:00:00
abstract：:Tissue fibrosis is an eventual pathologic change of numerous chronic illnesses, which is characterized by resident fibroblasts differentiation into myofibroblasts during inflammation, coupled with excessive extracellular matrix deposition in tissues, ultimately leading to failure of normal organ function. Now, there a...
journal_title：Journal of ginseng research
pub_type： 杂志文章,评审
doi：10.1016/j.jgr.2019.12.003
更新日期：2020-05-01 00:00:00
abstract：Background:Panax ginseng Meyer has been used as a nourishing edible herb in East Asia for thousands of years. 25-OH-PPT was first discovered as a natural rare triterpenoid saponin in ginseng stems and leaves by our group. Research found that it showed strong inhibitory effects on α-glucosidase and protein tyrosine phos...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2019.11.002
更新日期：2021-01-01 00:00:00
abstract：Background:The circadian rhythm is the internal clock that controls sleep-wake cycles, metabolism, cognition, and several processes in the body, and its disruption has been associated with aging. The differentiated embryo chondrocyte (Dec) gene is related to circadian rhythm. To our knowledge, there are no reports of t...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2020.09.003
更新日期：2021-01-01 00:00:00
abstract：BACKGROUND:Minor saponins or human intestinal bacterial metabolites, such as ginsenosides Rg3, F2, Rh2, and compound K, are more pharmacologically active than major saponins, such as ginsenosides Rb1, Rb2, and Rc. In this work, enzymatic hydrolysis of ginsenoside Rb1 was studied using enzyme preparations from cultured ...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2015.05.007
更新日期：2016-04-01 00:00:00
abstract：:Abnormal changes in skin color induce significant cosmetic problems and affect quality of life. There are two groups of abnormal change in skin color; hyperpigmentation and hypopigmentation. Hyperpigmentation, darkening skin color by excessive pigmentation, is a major concern for Asian people with yellow-brown skin. A...
journal_title：Journal of ginseng research
pub_type： 杂志文章,评审
doi：10.1016/j.jgr.2014.10.006
更新日期：2015-01-01 00:00:00
abstract：Background:The mixed-cultivation of different Panax ginseng cultivars can cause adverse effects on stability of yield and quality. K-1 is a superior cultivar with good root shape and stronger disease resistance. DNA markers mined from functional genes are clearly desirable for K-1, as they may associate with major trai...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2018.07.001
更新日期：2019-07-01 00:00:00
abstract：BACKGROUND:Ginsenosides are the major effective ingredients responsible for the pharmacological effects of ginseng. Malonyl ginsenosides are natural ginsenosides that contain a malonyl group attached to a glucose unit of the corresponding neutral ginsenosides. METHODS:Medium-pressure liquid chromatography and semiprep...
journal_title：Journal of ginseng research
pub_type： 杂志文章
doi：10.1016/j.jgr.2015.08.003
更新日期：2016-07-01 00:00:00
