1
|
Song Q, Duan ZK, Tan YN, Gao ZH, Liu D, Hao JL, Lin B, Huang XX, Song SJ. Isolation of four new monoterpenes from Ailanthus altissima (mill.) Swingle and their enzyme inhibitory effects. Fitoterapia 2024; 176:105984. [PMID: 38701870 DOI: 10.1016/j.fitote.2024.105984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2024] [Revised: 04/27/2024] [Accepted: 04/28/2024] [Indexed: 05/05/2024]
Abstract
A phytochemical study of the ethanol extract from Ailanthus altissima (Mill.) Swingle leaves resulted in the isolation of four new monoterpenoids (1-3, 5). The structures were elucidated using HRESIMS data, NMR spectroscopic data, quantum chemical calculations for NMR and ECD, and custom DP4+ probability analysis. Additionally, the absolute configuration of sugar was determined by acid hydrolysis. Compounds 1-4 are cyclogeraniane monocyclic monoterpenes, while compound 5 contains an acyclic mycrane monoterpenes skeleton. Anti-tyrosinase, anti-acetylcholinesterase, and anti-butyrylcholinesterase activities were tested. Compound 1 showed notable anti-acetylcholinesterase activity, and compound 3 exhibited significant inhibitory effects on anti-tyrosinase activity. Furthermore, the potential binding sites of compounds 1 and 3 were predicted by molecular docking.
Collapse
Affiliation(s)
- Qi Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, People's Republic of China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, People's Republic of China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang 110016, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Zhi-Kang Duan
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, People's Republic of China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, People's Republic of China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang 110016, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Ya-Nuo Tan
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, People's Republic of China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, People's Republic of China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang 110016, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Zhi-Heng Gao
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, People's Republic of China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, People's Republic of China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang 110016, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Dai Liu
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, People's Republic of China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, People's Republic of China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang 110016, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Jin-Le Hao
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Bin Lin
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Xiao-Xiao Huang
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, People's Republic of China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, People's Republic of China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang 110016, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
| | - Shao-Jiang Song
- Key Laboratory of Computational Chemistry-Based Natural Antitumor Drug Research & Development, Liaoning Province, People's Republic of China; Engineering Research Center of Natural Medicine Active Molecule Research & Development, Liaoning Province, People's Republic of China; Key Laboratory of Natural Bioactive Compounds Discovery & Modification, Shenyang 110016, People's Republic of China; School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.
| |
Collapse
|
2
|
Park I, Park K, Lee HS, Hong SM, Sriramulu DK, Hwang H, Song S, Baek JG, Kim DH, Kim SY, Kwon J, Kwon HC. Ecdysteroids from the Korean Endemic Species Ajuga spectabilis with Activities against Glucocorticoid Receptors and 11β-Hydroxysteroid Dehydrogenase Type 1. ACS OMEGA 2023; 8:26191-26200. [PMID: 37521666 PMCID: PMC10373211 DOI: 10.1021/acsomega.3c02421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023]
Abstract
Two new ecdysteroids, spectasterone A (1) and spectasterone B (2), together with four known ecdysteroids, breviflorasterone (3), ajugalactone (4), 20-hydroxyecdysone (5), and polypodine B (6) were isolated from the Korean endemic plant Ajuga spectabilis using feature-based molecular networking analysis. The chemical structures of 1 and 2 were determined based on the interpretation of NMR and mass spectrometric data. Their absolute configurations were established using 3JH, H coupling constants, NOESY interactions, Mosher's method, and ECD and DP4+ calculations. To identify their biological target, a machine learning-based prediction system was applied, and the results indicated that ecdysteroids may have 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1)-related activity, which was further supported by molecular docking results of ecdysteroids with 11β-HSD1. Following this result, all the isolated ecdysteroids were tested for their ability to affect the expression of 11β-hydroxysteroid dehydrogenase type 1 and glucocorticoid receptors (GRs) in HaCaT cells irradiated with UVB. Compounds 2-5 exhibited inhibition of 11β-HSD1 expression and increases in GR activity.
Collapse
Affiliation(s)
- InWha Park
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Keunwan Park
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Hyeon-Seong Lee
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Seong-Min Hong
- College
of Pharmacy, Gachon University, Incheon 21936, Republic of Korea
- Gachon
Institute of Pharmaceutical Science, Gachon
University, Incheon, 21936, Republic of Korea
| | - Dinesh Kumar Sriramulu
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Hoseong Hwang
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Sungmin Song
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Jong Gwon Baek
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Dong Hoon Kim
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| | - Sun Yeou Kim
- College
of Pharmacy, Gachon University, Incheon 21936, Republic of Korea
- Gachon
Institute of Pharmaceutical Science, Gachon
University, Incheon, 21936, Republic of Korea
| | - Jaeyoung Kwon
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
- Division
of Bio-Medical Science &Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea
| | - Hak Cheol Kwon
- KIST
Gangneung Institute of Natural Products, Korea Institute of Science and Technology, Gangneung 25451, Republic of Korea
| |
Collapse
|
3
|
Wijaya YT, Setiawan T, Sari IN, Park K, Lee CH, Cho KW, Lee YK, Lim JY, Yoon JK, Lee SH, Kwon HY. Ginsenoside Rd ameliorates muscle wasting by suppressing the signal transducer and activator of transcription 3 pathway. J Cachexia Sarcopenia Muscle 2022; 13:3149-3162. [PMID: 36127129 PMCID: PMC9745546 DOI: 10.1002/jcsm.13084] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 07/18/2022] [Accepted: 08/14/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The effects of some drugs, aging, cancers, and other diseases can cause muscle wasting. Currently, there are no effective drugs for treating muscle wasting. In this study, the effects of ginsenoside Rd (GRd) on muscle wasting were studied. METHODS Tumour necrosis factor-alpha (TNF-α)/interferon-gamma (IFN-γ)-induced myotube atrophy in mouse C2C12 and human skeletal myoblasts (HSkM) was evaluated based on cell thickness. Atrophy-related signalling, reactive oxygen species (ROS) level, mitochondrial membrane potential, and mitochondrial number were assessed. GRd (10 mg/kg body weight) was orally administered to aged mice (23-24 months old) and tumour-bearing (Lewis lung carcinoma [LLC1] or CT26) mice for 5 weeks and 16 days, respectively. Body weight, grip strength, inverted hanging time, and muscle weight were assessed. Histological analysis was also performed to assess the effects of GRd. The evolutionary chemical binding similarity (ECBS) approach, molecular docking, Biacore assay, and signal transducer and activator of transcription (STAT) 3 reporter assay were used to identify targets of GRd. RESULTS GRd significantly induced hypertrophy in the C2C12 and HSkM myotubes (average diameter 50.8 ± 2.6% and 49.9% ± 3.7% higher at 100 nM, vs. control, P ≤ 0.001). GRd treatment ameliorated aging- and cancer-induced (LLC1 or CT26) muscle atrophy in mice, which was evidenced by significant increases in grip strength, hanging time, muscle mass, and muscle tissue cross-sectional area (1.3-fold to 4.6-fold, vs. vehicle, P ≤ 0.05; P ≤ 0.01; P ≤ 0.001). STAT3 was found to be a possible target of GRd by the ECBS approach and molecular docking assay. Validation of direct interaction between GRd and STAT3 was confirmed through Biacore analysis. GRd also inhibited STAT3 phosphorylation and STAT3 reporter activity, which led to the inhibition of STAT3 nuclear translocation and the suppression of downstream targets of STAT3, such as atrogin-1, muscle-specific RING finger protein (MuRF-1), and myostatin (MSTN) (29.0 ± 11.2% to 84.3 ± 30.5%, vs. vehicle, P ≤ 0.05; P ≤ 0.01; P ≤ 0.001). Additionally, GRd scavenged ROS (91.7 ± 1.4% reduction at 1 nM, vs. vehicle, P ≤ 0.001), inhibited TNF-α-induced dysregulation of ROS level, and improved mitochondrial integrity (P ≤ 0.05; P ≤ 0.01; P ≤ 0.001). CONCLUSIONS GRd ameliorates aging- and cancer-induced muscle wasting. Our findings suggest that GRd may be a novel therapeutic agent or adjuvant for reversing muscle wasting.
Collapse
Affiliation(s)
- Yoseph Toni Wijaya
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan, Republic of Korea
| | - Tania Setiawan
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan, Republic of Korea
| | - Ita Novita Sari
- Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan, Republic of Korea
| | - Keunwan Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology, Seoul, Republic of Korea
| | - Chan Hee Lee
- Program of Material Science for Medicine and Pharmaceutics, Department of Biomedical Science, Hallym University, Chuncheon, Republic of Korea
| | - Kae Won Cho
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan, Republic of Korea.,Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan, Republic of Korea
| | - Yun Kyung Lee
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan, Republic of Korea.,Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan, Republic of Korea
| | - Jae-Young Lim
- Institute of Aging, Seoul National University, Seoul, Republic of Korea.,Department of Rehabilitation Medicine, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Jeong Kyo Yoon
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan, Republic of Korea.,Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan, Republic of Korea
| | - Sae Hwan Lee
- Liver Clinic, Soonchunhyang University Cheonan Hospital, Cheonan, Republic of Korea
| | - Hyog Young Kwon
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan, Republic of Korea.,Soonchunhyang Institute of Medi-bio Science (SIMS), Soonchunhyang University, Cheonan, Republic of Korea
| |
Collapse
|
4
|
Wang N, Xu JB, Li XH, Zhou XL, Gao F. Ir-Catalyzed Biomimetic Photoisomerization of Cyclopropane in Lathyrane-Type Euphorbia Diterpenes. Org Lett 2022; 24:8598-8602. [DOI: 10.1021/acs.orglett.2c03172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Neng Wang
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Jin-Bu Xu
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Xiao-Huan Li
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Xian-Li Zhou
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| | - Feng Gao
- Sichuan Engineering Research Center for Biomimetic Synthesis of Natural Drugs, School of Life Science and Engineering, Southwest Jiaotong University, Chengdu 610031, People’s Republic of China
| |
Collapse
|
5
|
Facile Detection of Light-Controlled Radical Scavengers from Natural Products Using In Situ UV-LED NMR Spectroscopy. Antioxidants (Basel) 2022; 11:antiox11112206. [DOI: 10.3390/antiox11112206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 10/30/2022] [Accepted: 11/04/2022] [Indexed: 11/09/2022] Open
Abstract
With the recent development of chemical analysis technology, attention has been placed on natural light-sensitive compounds that exhibit photoreactivity to expand the structural diversity of natural product chemistry. Photochemical reactions that proceed via a free radical mechanism could be used to modulate the radical-scavenging ability of natural products as well as involve structural change. As the health benefits of radicals are also presented, there is a need for a controllable radical scavenging method for topical and selective application. In this study, we developed a novel acquisition and processing method to identify light-controlled radical scavengers in plant extracts and evaluate their antioxidant activity under light irradiation based on in situ UV-LED NMR spectroscopy. Using the developed method, licochalcones A and B, in which the trans and cis isomers undergo reversible photoisomerization, were selectively identified from licorice root extract, and their light-induced free radical scavenging activity was confirmed.
Collapse
|
6
|
Cho E, Hwang JY, Park JS, Oh D, Oh DC, Park HG, Shin J, Oh KB. Inhibition of Streptococcus mutans adhesion and biofilm formation with small-molecule inhibitors of sortase A from Juniperus chinensis. J Oral Microbiol 2022; 14:2088937. [PMID: 35756538 PMCID: PMC9225741 DOI: 10.1080/20002297.2022.2088937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Background Streptococcus mutans, an important Gram-positive pathogen in dental caries, uses sortase A (SrtA) to anchor surface proteins to the bacterial cell wall, thereby promoting biofilm formation and attachment to the tooth surface. Design Based on activity-guided separation, inhibitors of S. mutans SrtA were isolated from Juniperus chinensis and identified through combined spectroscopic analysis. Further effects of isolated SrtA inhibitor on S. mutans were evaluated on bacterial aggregation, adherence and biofilm formation. Results Six compounds (1–6) were isolated from the dried heartwood of J. chinensis. A novel compound designated 3’,3”-dihydroxy-(−)-matairesinol (1) was identified, which exhibited potent inhibitory activity toward S. mutans SrtA (IC50 = 16.1 μM) without affecting microbial viability (minimum inhibitory concentration > 300 μM). The results of subsequent bioassays using compound 1 indicated that this compound inhibits S. mutans aggregation, adhesion and biofilm formation on solid surfaces by inhibiting SrtA activity. The onset and magnitude of inhibition of adherence and biofilm formation in S. mutans treated with compound 1 at 4× the SrtA IC50 are comparable to the behaviors of the untreated srtA-deletion mutant. Conclusion Our findings suggest that small-molecule inhibitors of S. mutans SrtA may be useful for the prevention of dental plaque and treatment of dental microbial diseases.
Collapse
Affiliation(s)
- Eunji Cho
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| | - Ji-Yeon Hwang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Jae Sung Park
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Daehyun Oh
- Research Institute of Pharmaceutical Sciences and College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Hyeung-Geun Park
- Research Institute of Pharmaceutical Sciences and College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Jongheon Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul, Republic of Korea
| | - Ki-Bong Oh
- Department of Agricultural Biotechnology, College of Agriculture and Life Sciences, Seoul National University, Seoul, Republic of Korea
| |
Collapse
|
7
|
Han JS, Hong HR, Kim JG, Le TPL, Cho YB, Lee MK, Hwang BY. Chemical constituents from Pterocarpus santalinus and their inhibitory effects on nitric oxide production. Fitoterapia 2022; 159:105202. [PMID: 35489581 DOI: 10.1016/j.fitote.2022.105202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Revised: 04/19/2022] [Accepted: 04/23/2022] [Indexed: 11/29/2022]
Abstract
A tropolone (2) and an acorane sesquiterpene (3), along with twenty previously known compounds were isolated from the heartwood of Pterocarpus santalinus. The structure of the isolated compounds was elucidated via 1D and 2D NMR spectroscopy and HRESIMS analysis. The absolute configuration of 3 was determined by comparison of the experimental and calculated ECD data. All compounds were evaluated for their inhibitory effects against nitric oxide production in LPS-stimulated RAW 264.7 macrophages.
Collapse
Affiliation(s)
- Jae Sang Han
- College of Pharmacy, Chungbuk National University, Cheongju 28610, Republic of Korea
| | - Hye Ryeong Hong
- College of Pharmacy, Chungbuk National University, Cheongju 28610, Republic of Korea
| | - Jun Gu Kim
- College of Pharmacy, Chungbuk National University, Cheongju 28610, Republic of Korea
| | - Thi Phuong Linh Le
- College of Pharmacy, Chungbuk National University, Cheongju 28610, Republic of Korea
| | - Yong Beom Cho
- College of Pharmacy, Chungbuk National University, Cheongju 28610, Republic of Korea
| | - Mi Kyeong Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28610, Republic of Korea
| | - Bang Yeon Hwang
- College of Pharmacy, Chungbuk National University, Cheongju 28610, Republic of Korea.
| |
Collapse
|
8
|
Ko K, Kim SH, Park S, Han HS, Lee JK, Cha JW, Hwang S, Choi KY, Song YJ, Nam SJ, Shin J, Nam SI, Kwon HC, Park JS, Oh DC. Discovery and Photoisomerization of New Pyrrolosesquiterpenoids Glaciapyrroles D and E, from Deep-Sea Sediment Streptomyces sp. Mar Drugs 2022; 20:md20050281. [PMID: 35621932 PMCID: PMC9147834 DOI: 10.3390/md20050281] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2022] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 02/04/2023] Open
Abstract
Two new pyrrolosesquiterpenes, glaciapyrroles D (1) and E (2) were discovered along with the previously reported glaciapyrrole A (3) from Streptomyces sp. GGS53 strain isolated from deep-sea sediment. This study elucidated the planar structures of 1 and 2 using nuclear magnetic resonance (NMR), mass spectrometry (MS), ultraviolet (UV), and infrared (IR) spectroscopic data. The absolute configurations of the glaciapyrroles were determined by Mosher’s method, circular dichroism spectroscopy, and X-ray crystallography. Under 366 nm UV irradiation, the glaciapyrroles were systematically converted to the corresponding photoglaciapyrroles (4–6) via photoisomerization, resulting in the diversification of the glaciapyrrole family compounds. The transformation of the glaciapyrrole Z to E isomers occurred in a 1:1 ratio, based on virtual validation of the photoisomerization of these olefinic compounds by 1H-NMR spectroscopy and liquid chromatography/mass spectrometry (LC/MS) analysis. Finally, when encapsulated in poly(lactic-co-glycolic acid) nanoparticles, glaciapyrrole E and photoglaciapyrrole E displayed significant inhibitory activity against influenza A virus. This is the first report of antiviral effects from glaciapyrrole family compounds, whose biological functions have only been subjected to limited studies so far.
Collapse
Affiliation(s)
- Keebeom Ko
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (K.K.); (S.H.); (J.S.)
| | - Seong-Hwan Kim
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 25451, Korea; (S.-H.K.); (H.S.H.); (J.W.C.); (K.Y.C.); (H.C.K.)
| | - Subin Park
- Department of Life Science, Gachon University, Seongnam-daero 1342, Sujeong-gu, Seongnam 13120, Korea; (S.P.); (Y.-J.S.)
| | - Hwa Seung Han
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 25451, Korea; (S.-H.K.); (H.S.H.); (J.W.C.); (K.Y.C.); (H.C.K.)
| | - Jae Kyun Lee
- Neuro-Medicine, Korea Institute of Science and Technology, Hwarang-ro 14-gil 5, Seongbuk-gu, Seoul 02792, Korea;
| | - Jin Wook Cha
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 25451, Korea; (S.-H.K.); (H.S.H.); (J.W.C.); (K.Y.C.); (H.C.K.)
| | - Sunghoon Hwang
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (K.K.); (S.H.); (J.S.)
| | - Ki Young Choi
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 25451, Korea; (S.-H.K.); (H.S.H.); (J.W.C.); (K.Y.C.); (H.C.K.)
| | - Yoon-Jae Song
- Department of Life Science, Gachon University, Seongnam-daero 1342, Sujeong-gu, Seongnam 13120, Korea; (S.P.); (Y.-J.S.)
| | - Sang-Jip Nam
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul 03760, Korea;
| | - Jongheon Shin
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (K.K.); (S.H.); (J.S.)
| | - Seung-Il Nam
- Division of Glacial Environment Research, Korea Polar Research Institute, Incheon 21990, Korea;
| | - Hak Cheol Kwon
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 25451, Korea; (S.-H.K.); (H.S.H.); (J.W.C.); (K.Y.C.); (H.C.K.)
| | - Jin-Soo Park
- Natural Product Informatics Research Center, Korea Institute of Science and Technology (KIST), Gangneung Institute, Gangneung 25451, Korea; (S.-H.K.); (H.S.H.); (J.W.C.); (K.Y.C.); (H.C.K.)
- Correspondence: (J.-S.P.); (D.-C.O.); Tel.: +82-33-650-3509 (J.-S.P.); +82-2-880-2491 (D.-C.O.); Fax: +82-33-650-3629 (J.-S.P.); +82-2-762-8322 (D.-C.O.)
| | - Dong-Chan Oh
- Natural Products Research Institute, College of Pharmacy, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea; (K.K.); (S.H.); (J.S.)
- Correspondence: (J.-S.P.); (D.-C.O.); Tel.: +82-33-650-3509 (J.-S.P.); +82-2-880-2491 (D.-C.O.); Fax: +82-33-650-3629 (J.-S.P.); +82-2-762-8322 (D.-C.O.)
| |
Collapse
|
9
|
A New Insight into Toxicity of Colchicine Analogues by Molecular Docking Analysis Based on Intestinal Tight Junction Protein ZO-1. Molecules 2022; 27:molecules27061797. [PMID: 35335160 PMCID: PMC8955668 DOI: 10.3390/molecules27061797] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/05/2022] [Accepted: 03/08/2022] [Indexed: 12/10/2022] Open
Abstract
Colchicine (COL) is a well-known plant alkaloid long used for medical purposes due to the selective anti-inflammatory effect on acute gouty arthritis. It is also a kind of mitosis toxin with strong inhibitory effects of cell division and is therefore being applied to the treatment of various cancers. However, this product shows a variety of adverse effects that are significantly correlated with the dosage and have attracted much attention. For the first time, the present work obtained a new insight into the gastrointestinal toxicity of colchicine analogues by molecular docking analysis, which was based on the 3D structure of intestinal tight junction protein ZO-1 and the ligand library containing dozens of small-molecule compounds with the basic skeleton of COL and its metabolites. The binding energy and mode of protein–ligand interaction were investigated to better understand the structure–toxicity relationships of COL analogues and the mechanism of action as well. Cluster analysis clearly demonstrated the strong correlation between the binding energy and toxicity of ligand molecules. The interaction mode further revealed that the hydrogen bonding (via the C-7 amide or C-9 carbonyl group) and hydrophobic effect (at ring A or C) were both responsible for ZO-1-related gastrointestinal toxicity of COL analogues, while metabolic transformation via phase I and/or phase II reaction would significantly attenuate the gastrointestinal toxicity of colchicine, indicating an effective detoxication pathway through metabolism.
Collapse
|