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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.1
- 수록면
- 48 - 57 (10page)
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초록· 키워드
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Background: Ginsenoside Rh2 is well known for many pharmacological activities, such as anticancer, antidiabetes, antiinflammatory, and antiobesity properties. Glycosyltransferases (GTs) are ubiquitous enzymes present in nature and are widely used for the synthesis of oligosaccharides, polysaccharides, glycoconjugates, and novel derivatives. We aimed to synthesize new ginsenosides from Rh2 using the recombinant GT enzyme and investigate its cytotoxicity with diverse cell lines.
Methods: We have used a GT gene with 1,224-bp gene sequence cloned from Lactobacillus rhamnosus (LRGT) and then expressed in Escherichia coli BL21 (DE3). The recombinant GT protein was purified and demonstrated to transform Rh2 into two novel ginsenosides, and they were characterized by nuclear magnetic resonance (NMR) techniques and evaluated by 3-(4, 5-dimethylthiazol-2-yl)-2-5-diphenyltetrazolium bromide assay.
Results: Two novel ginsenosides with an additional glucopyranosyl (6/1) and two additional glucopyranosyl (6/1) linked with the C-3 position of the substrate Rh2 were synthesized, respectively. Cell viability assay in the lung cancer (A549) cell line showed that glucosyl ginsenoside Rh2 inhibited cell viability more potently than ginsenoside Rg3 and Rh2 at a concentration of 10 μM. Furthermore, glucosyl ginsenoside Rh2 did not exhibit any cytotoxic effect in murine macrophage cells (RAW264.7), mouse embryo fibroblasts cells (3T3-L1), and skin cells (B16BL6) at a concentration of 10 μM compared with ginsenoside Rh2 and Rg3.
Conclusion: This is the first report on the synthesis of two novel ginsenosides, namely, glucosyl ginsenoside Rh2 and diglucosyl ginsenoside Rh2 from Rh2 by using recombinant GT isolated from L. rhamnosus. Moreover, diglucosyl ginsenoside Rh2 might be a new candidate for treatment of inflammation, obesity, and skin whiting, and especially for anticancer.
Methods: We have used a GT gene with 1,224-bp gene sequence cloned from Lactobacillus rhamnosus (LRGT) and then expressed in Escherichia coli BL21 (DE3). The recombinant GT protein was purified and demonstrated to transform Rh2 into two novel ginsenosides, and they were characterized by nuclear magnetic resonance (NMR) techniques and evaluated by 3-(4, 5-dimethylthiazol-2-yl)-2-5-diphenyltetrazolium bromide assay.
Results: Two novel ginsenosides with an additional glucopyranosyl (6/1) and two additional glucopyranosyl (6/1) linked with the C-3 position of the substrate Rh2 were synthesized, respectively. Cell viability assay in the lung cancer (A549) cell line showed that glucosyl ginsenoside Rh2 inhibited cell viability more potently than ginsenoside Rg3 and Rh2 at a concentration of 10 μM. Furthermore, glucosyl ginsenoside Rh2 did not exhibit any cytotoxic effect in murine macrophage cells (RAW264.7), mouse embryo fibroblasts cells (3T3-L1), and skin cells (B16BL6) at a concentration of 10 μM compared with ginsenoside Rh2 and Rg3.
Conclusion: This is the first report on the synthesis of two novel ginsenosides, namely, glucosyl ginsenoside Rh2 and diglucosyl ginsenoside Rh2 from Rh2 by using recombinant GT isolated from L. rhamnosus. Moreover, diglucosyl ginsenoside Rh2 might be a new candidate for treatment of inflammation, obesity, and skin whiting, and especially for anticancer.
목차
ABSTRACT
1. Introduction
2. Materials and methods
3. Results and discussion
4. Conclusion
References
참고문헌 (50)
참고문헌 신청
김유진 / 2014 / Ginsenoside profiles and related gene expression during foliation in Panax ginseng Meyer / Journal of Ginseng Research 38(1):66~72
Radad K / 2006 / Use of ginseng in medicine with emphasis on neurodegenerative disorders / J Pharmacol Sci 100:175~186
Leung KW / 2010 / Pharmacology of ginsenosides : a literature review / Chin Med 5:20
Park EJ / 2008 / Oxidative stress and apoptosis induced by titanium dioxide nanoparticles in cultured BEAS-2B cells / Toxicol Lett 180:222~229
Choi KT / 2008 / Botanical characteristics, pharmacological effects and medicinal components of Korean Panax ginseng C A Meyer / Acta Pharmacol Sin 29:1109~1118
Radad K / 2006 / Use of ginseng in medicine with emphasis on neurodegenerative disorders / J Pharmacol Sci 100:175~186
Leung KW / 2010 / Pharmacology of ginsenosides : a literature review / Chin Med 5:20
Park EJ / 2008 / Oxidative stress and apoptosis induced by titanium dioxide nanoparticles in cultured BEAS-2B cells / Toxicol Lett 180:222~229
Choi KT / 2008 / Botanical characteristics, pharmacological effects and medicinal components of Korean Panax ginseng C A Meyer / Acta Pharmacol Sin 29:1109~1118
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