1
|
Lee S, Son MG, Kim YM, An CY, Kim HJ, Nhoek P, Pel P, Won H, Lee Y, Yun N, Paik JH, Bazarragchaa B, Kim HW, Choi YH, Oh WK, Lee CH, Chin YW. Dihydrostilbenes and flavonoids from whole plants of Jacobaea vulgaris. Phytochemistry 2024; 222:114107. [PMID: 38663823 DOI: 10.1016/j.phytochem.2024.114107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 04/08/2024] [Accepted: 04/21/2024] [Indexed: 05/02/2024]
Abstract
The isolation of previously undescribed 12 compounds from the MeOH extract of Jacobaea vulgaris whole plants is disclosed, comprising 11 dihydrostilbenes (1-11) and one flavanone (12), and eight known compounds (six flavonoids, one dihydrostilbene, and one caffeoylquinic acid). Structural elucidation employed spectroscopic methods, including 1D and 2D NMR spectroscopy, HRESIMS, and ECD calculations. Evaluation of the compounds' effects on PCSK9 and LDLR mRNA expression revealed that compounds 1 and 3 downregulated PCSK9 mRNA while increasing LDLR mRNA expression, suggesting potential cholesterol-lowering properties.
Collapse
Affiliation(s)
- Shinae Lee
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Min-Gyung Son
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Young-Mi Kim
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Chae-Yeong An
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hyun Ji Kim
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do, 10326, Republic of Korea
| | - Piseth Nhoek
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Pisey Pel
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Hongic Won
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Yoonkyung Lee
- Plant Resources Division, National Institute of Biological Resources, Incheon, 22689, Republic of Korea
| | - Narae Yun
- Department of Botany, Honam National Institute of Biological Resources, Mokpo, 58762, Republic of Korea
| | - Jin-Hyub Paik
- International Biological Material Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, 34141, Republic of Korea
| | | | - Hyun Woo Kim
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do, 10326, Republic of Korea
| | - Young Hee Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do, 10326, Republic of Korea
| | - Won Keun Oh
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea
| | - Chang Hoon Lee
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do, 10326, Republic of Korea
| | - Young-Won Chin
- Natural Products Research Institute and Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul, 08826, Republic of Korea.
| |
Collapse
|
2
|
Nhoek P, An CY, Son MG, Chae HS, Pel P, Kim YM, Khiev P, Choi WJ, Choi YH, Chin YW. Stereochemical assignment of clerodane-type diterpenes from the fruits of Casearia grewiifolia and their ability to inhibit PCSK9 expression. Phytochemistry 2023; 216:113864. [PMID: 37748701 DOI: 10.1016/j.phytochem.2023.113864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Revised: 09/14/2023] [Accepted: 09/16/2023] [Indexed: 09/27/2023]
Abstract
More than 20 natural products have been reported to modulate PCSK9-mediated cholesterol regulation, and small-molecule-derived proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors continue to be developed and identified. Here, twelve undescribed clerodane-type diterpenes (1-9 and 12-14) and two known compounds were isolated from the chloroform-soluble extract of the dried fruits of Casearia grewiifolia Vent. using a PCSK9 mRNA expression monitoring assay. Among the undescribed compounds, the stereochemistry of two diastereomeric grewiifolins A and B (1 and 2) were extensively elucidated using 2D Nuclear Overhauser Effect Spectroscopy (NOESY) experiments, excitation-sculptured indirect detection experiments (EXSIDE), interproton distance analyses, and computational calculations that included quantum chemical shift calculations combined with DP4+ analysis. All isolates were assessed for their inhibitory activity against PCSK9 and IDOL mRNA expression. Among the compounds tested, compound 3 inhibited PCSK9 and IDOL mRNA expression.
Collapse
Affiliation(s)
- Piseth Nhoek
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Chae-Yeong An
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Min-Gyung Son
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hee-Sung Chae
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Pisey Pel
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Young-Mi Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Piseth Khiev
- Royal University of Phnom Penh, Department of Biology, Russian Federation Boulevard, Khan Toul Kork, Phnom Penh 12156, Cambodia
| | - Won Jun Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do 10326, Republic of Korea
| | - Young Hee Choi
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Gyeonggi-do 10326, Republic of Korea
| | - Young-Won Chin
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| |
Collapse
|
3
|
An CY, Son MG, Chin YW. Acyclic Triterpenoids from Alpinia katsumadai Seeds with Proprotein Convertase Subtilisin/Kexin Type 9 Expression and Secretion Inhibitory Activity. ACS Omega 2023; 8:32804-32816. [PMID: 37720796 PMCID: PMC10500697 DOI: 10.1021/acsomega.3c03873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 08/01/2023] [Indexed: 09/19/2023]
Abstract
Cholesterol is one of the primary causes of cardiovascular disease. Investigating and developing potential drugs to effectively treat hypercholesterolemia are therefore of critical importance. Proprotein convertase subtilisin/kexin type 9 (PCSK9) inhibitors have been developed to lower the levels of low-density lipoprotein cholesterol in patients with hypercholesterolemia. In this study, we aimed to identify compounds that inhibit the PCSK9 mRNA expression and secretion. The bioassay-guided investigation of Alpinia katsumadai seeds utilizing a PCSK9 mRNA expression monitoring assay yielded the isolation and identification of seven new compounds. Among these were three acyclic triterpenoids (1-3), an acyclic sesquiterpenoid (5), one arylpentanoid (6), and two diarylheptanoids (7 and 8), alongside 10 known compounds. The structures of these compounds were determined using nuclear magnetic resonance (NMR) spectroscopy, vibrational circular dichroism (VCD), and electronic circular dichroism (ECD). The absolute configurations of compounds 1 and 2 were identified by comparing the calculated and experimental VCD data as the ECD method was unable to distinguish the diastereomers. All the isolated compounds were evaluated for their regulatory effects on the low-density lipoprotein receptor (LDLR) and PCSK9 mRNA expression, as well as PCSK9 secretion. Of the tested compounds, two of the acyclic triterpenoids (1 and 2) demonstrated potent effects in downregulating PCSK9 at both the mRNA and protein levels, compared with the positive control (berberine chloride). Additionally, compound 1 inhibited PCSK9 secretion to a level comparable to that of berberine chloride. This study identifies compounds that inhibit PCSK9 mRNA expression and secretion, offering significant contributions to the development of novel drugs for the effective treatment of hypercholesterolemia..
Collapse
Affiliation(s)
- Chae-Yeong An
- College of Pharmacy and Research Institute
of Pharmaceutical Sciences, Seoul National
University, Seoul 08826, Republic
of Korea
| | - Min-Gyung Son
- College of Pharmacy and Research Institute
of Pharmaceutical Sciences, Seoul National
University, Seoul 08826, Republic
of Korea
| | - Young-Won Chin
- College of Pharmacy and Research Institute
of Pharmaceutical Sciences, Seoul National
University, Seoul 08826, Republic
of Korea
| |
Collapse
|
4
|
Won H, Son MG, Pel P, Nhoek P, An CY, Kim YM, Chae HS, Chin YW. Chemical constituents from Morus alba with proprotein convertase subtilisin/kexin type 9 expression and secretion inhibitory activity. Org Biomol Chem 2023; 21:2801-2808. [PMID: 36920451 DOI: 10.1039/d3ob00225j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/11/2023]
Abstract
Six new flavanones, including sanggenol W (1), morusalnol D-F (2-4) and neovanone A and B (5 and6), and fourteen known compounds were isolated from the methanol extract of the dried root bark of Morus alba using various column chromatographic methods. Their structures were elucidated using spectroscopic methods. The isolated compounds were tested in vitro for LDLR, PCSK9 and IDOL mRNA regulatory activity, and it was found that betulinic acid (13) showed the most potent effect on downregulation of PCSK9 and upregulation of LDLR at both mRNA and protein levels, showing comparable results to berberine, the positive control. In addition, betulinic acid (13) inhibited PCSK9 secretion, indicating its role as a future PCSK9 synthesis inhibitor.
Collapse
Affiliation(s)
- Hongic Won
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Min-Gyung Son
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Pisey Pel
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Piseth Nhoek
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Chae-Yeong An
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Young-Mi Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Hee-Sung Chae
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Young-Won Chin
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| |
Collapse
|
5
|
Pel P, Kim YM, Kim HJ, Nhoek P, An CY, Son MG, Won H, Lee SE, Lee J, Kim HW, Choi YH, Lee CH, Chin YW. Isocoumarins and Benzoquinones with Their Proprotein Convertase Subtilisin/Kexin Type 9 Expression Inhibitory Activities from Dried Roots of Lysimachia vulgaris. ACS Omega 2022; 7:47296-47305. [PMID: 36570277 PMCID: PMC9774376 DOI: 10.1021/acsomega.2c06660] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
A phytochemical investigation of the n-hexane-soluble chemical constituents of Lysimachia vulgaris roots allowed for selection using a proprotein convertase subtilisin-kexin type 9 (PCSK9) mRNA expression monitoring assay in HepG2 cells. This led to the isolation of two previously undescribed isocoumarins of natural origin, 8'Z,11'Z-octadecadienyl-6,8-dihydroxyisocoumarin (1) and 3-pentadecyl-6,8-dihydroxyisocoumarin (2), along with 20 previously reported compounds (3-22). All of the structures were established using NMR spectroscopic data and MS analysis. Of the isolates, 1 and 3 were found to inhibit PCSK9, inducible degrader of the low-density lipoprotein receptor (IDOL), and SREBP2 mRNA expression. Further computational dockings of both 1 and 3 to C-ring of IDOL E3 ubiquitin ligase predicted the mechanism behind the inhibitory effect of these compounds on the enzyme.
Collapse
Affiliation(s)
- Pisey Pel
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Young-Mi Kim
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hyun Ji Kim
- College
of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Piseth Nhoek
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Chae-Yeong An
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Min-Gyung Son
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Hongic Won
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Seung Eun Lee
- Department
of Herbal Crop Research, National Institute
of Horticultural and Herbal Science (NIHHS) of Rural Development Administration, Eumseong 27709, Republic of Korea
| | - Jeonghoon Lee
- Department
of Herbal Crop Research, National Institute
of Horticultural and Herbal Science (NIHHS) of Rural Development Administration, Eumseong 27709, Republic of Korea
| | - Hyun Woo Kim
- College
of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Young Hee Choi
- College
of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Chang Hoon Lee
- College
of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, 32 Dongguk-lo, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Young-Won Chin
- College
of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| |
Collapse
|
6
|
Kim KM, Kim GS, Ko JS, Gwak MS, Lee SK, Son MG. Factors associated with consciousness recovery time after liver transplantation in recipients with hepatic encephalopathy. Transplant Proc 2015; 46:712-5. [PMID: 24767331 DOI: 10.1016/j.transproceed.2013.12.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 11/30/2013] [Accepted: 12/11/2013] [Indexed: 12/29/2022]
Abstract
BACKGROUND Hepatic encephalopathy (HE) occurs as a result of liver failure and is often considered to be a clinical indication for liver transplantation (LT). An assessment of post-transplantation consciousness level in recipients with HE is crucial, because recovery of consciousness implies reestablishment of transplant liver function and lack of perioperative brain damage. The purpose of this study is to evaluate factors associated with consciousness recovery time after LT in recipients with HE. METHODS Out of 633 adult recipients who underwent LT, recipients who exhibited HE at the time of LT were analyzed retrospectively. The time between graft reperfusion and postoperative consciousness recovery was determined, and recipients were divided into 2 groups: group E with recovery of consciousness early (≤48 hours), and group L with recovery of consciousness late (>48 hours). Analyzed variables included recipient sex, age, graft type, Model for End-Stage Liver Disease score, HE history/duration/type/grade, and preoperative laboratory values, including blood ammonia concentration. RESULTS HE was present at the time of LT in 69 (10.9%) of 633 recipients. Among the 69 recipients, 11 recipients who died or underwent reoperation before consciousness recovery were excluded, and 58 recipients (group E: n = 32; group L: n = 26) were enrolled into analysis. Multivariate analysis showed that HE duration >5 days (odds ratio [OR], 15.58; 95% confidence interval [CI], 1.35-179.56; P = .028) and HE type C (OR, 30.90; 95% CI, 1.67-573.48; P = .021) were the independent factors associated with late recovery from HE after LT. CONCLUSIONS We suggest that recipients with long-duration or type C HE should be carefully managed during the post-transplantation period to prevent deterioration of HE.
Collapse
Affiliation(s)
- K M Kim
- Department of Anesthesiology and Pain Medicine, Dongtan Sacred Heart Hospital, Hallym University School of Medicine, Hwasung, Korea
| | - G S Kim
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
| | - J S Ko
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - M S Gwak
- Department of Anesthesiology and Pain Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - S-K Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - M G Son
- Department of Anesthesiology and Pain Medicine, Dongtan Sacred Heart Hospital, Hallym University School of Medicine, Hwasung, Korea
| |
Collapse
|