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Luo Y, Grossman RB, Nie XB, Yang XW. Total synthesis and structural reassignment of garcinielliptone FC, a polycyclic polyprenylated acylphloroglucinol with diverse bioactivity. Chem Commun (Camb) 2023; 59:6215-6218. [PMID: 37129081 DOI: 10.1039/d3cc01268a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Garcinielliptone FC (GFC) was assigned to be a type A polycyclic polyprenylated acylphloroglucinol (PPAP) and was found to exhibit diverse biological activities. Now we revise the structure of GFC to xanthochymol, a type B PPAP, via NMR and total synthesis methods. The total syntheses of (±)-xanthochymol and (±)-cycloxanthochymol were accomplished in 12 and 13 steps, respectively.
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Affiliation(s)
- Yang Luo
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China.
| | - Robert B Grossman
- Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055, USA
| | - Xiao-Bin Nie
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China.
| | - Xing-Wei Yang
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Shenzhen 518107, People's Republic of China.
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The ethanol extract of Garcinia subelliptica Merr. induces autophagy. BMC Complement Med Ther 2021; 21:280. [PMID: 34758822 PMCID: PMC8579681 DOI: 10.1186/s12906-021-03454-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 10/28/2021] [Indexed: 12/13/2022] Open
Abstract
Background Garcinia subelliptica Merr. is a multipurpose coastal tree, the potential medicinal effects of which have been studied, including cancer suppression. Here, we present evidence that the ethanol extract of G. subelliptica Merr. (eGSM) induces autophagy in human lung adenocarcinoma cells. Methods Two different human lung adenocarcinoma cell lines, A549 and SNU2292, were treated with varying amounts of eGSM. Cytotoxicity elicited by eGSM was assessed by MTT assay and PARP degradation. Autophagy in A549 and SNU2292 was determined by western blotting for AMPK, mTOR, ULK1, and LC3. Genetic deletion of AMPKα in HEK293 cells was carried out by CRISPR. Results eGSM elicited cytotoxicity, but not apoptosis, in A549 and SNU2292 cells. eGSM increased LC3-II production in both A549 and, more extensively, SNU2292, suggesting that eGSM induces autophagy. In A549, eGSM activated AMPK, an essential autophagy activator, but not suppressed mTOR, an autophagy blocker, suggesting that eGSM induces autophagy by primarily activating the AMPK pathway in A549. By contrast, eGSM suppressed mTOR activity without activating AMPK in SNU2292, suggesting that eGSM induces autophagy by mainly suppressing mTOR in SNU2292. In HEK293 cells lacking AMPKα expression, eGSM increased LC3-II production, confirming that the autophagy induced by eGSM can occur without the AMPK pathway. Conclusion Our findings suggest that eGSM induces autophagy by activating AMPK or suppressing mTOR pathways, depending on cell types. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-021-03454-4.
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Garcinielliptone G from Garcinia subelliptica Induces Apoptosis in Acute Leukemia Cells. Molecules 2021; 26:molecules26092422. [PMID: 33919344 PMCID: PMC8122622 DOI: 10.3390/molecules26092422] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 04/15/2021] [Accepted: 04/19/2021] [Indexed: 11/29/2022] Open
Abstract
Cytotoxicity and apoptosis-inducing properties of compounds isolated from Garcinia subelliptica leaves were investigated. The hexane-soluble portion of MeOH extracts of G. subelliptica leaves that showed cytotoxic activity was separated to yield seven compounds 1–7. Chemical structure analysis using NMR spectroscopy and mass spectrometry confirmed that compound 1 was canophyllol, and compounds 2–7 were garcinielliptones N, O, J, G, F, and garcinielliptin oxide, respectively. Among them, garcinielliptone G (5) showed growth inhibition by causing apoptosis in THP-1 and Jurkat cells derived from human acute monocytic leukemia and T lymphocyte cells, respectively. Apoptosis induced by garcinielliptone G (5) was demonstrated by the detection of early apoptotic cells with fluorescein-labeled Annexin V and increases in cleaved caspase-3 and cleaved PARP protein levels. However, the addition of caspase inhibitor Z-VAD-FMK did not affect growth arrest or apoptosis induction. These results suggest that garcinielliptone G (5) can induce both caspase-3 activation and caspase-independent apoptosis. Therefore, garcinielliptone G (5) may be a potential candidate for acute leukemia treatment.
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Chen B, Akamine H. Distribution and utilization of homestead windbreak Fukugi (Garcinia subelliptica Merr.) trees: an ethnobotanical approach. JOURNAL OF ETHNOBIOLOGY AND ETHNOMEDICINE 2021; 17:11. [PMID: 33618759 PMCID: PMC7898781 DOI: 10.1186/s13002-021-00434-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 01/26/2021] [Indexed: 05/06/2023]
Abstract
BACKGROUND Garcinia subelliptica (Fukugi in Japanese) is an evergreen tropical tree, first identified in Batanes, the Philippines, which has been planted as a homestead windbreak and in coastal forests extensively on the Ryukyu Archipelago, Japan. This article focuses on the traditional uses and cultural values of Fukugi trees and provides ethnobotanical information for the conservation scheme of this important tree species. METHODS A combination of ecological and ethnobotanical approaches was applied in this study. Extensive field surveys were conducted to collect dimensions of relatively large trees, and in-depth interviews with the village leaders and knowledgeable persons were conducted to collect ethnobotanical data. RESULTS Fukugi trees have been primarily planted as homestead or farmland windbreaks. Timber was harvested during difficult times, for example, after WWII, and used for recreational purposes for children or farmers. The fruits were also eaten on some remote islands. Old-growth Fukugi trees are widely found in sacred sites, within cities, and as symbolic trees. The older generations respect Fukugi trees; however, the cultural significance valued by older generation seems to be lacking in the younger generation. We argue that Fukugi is a cultural keystone species in Okinawa, which underpins Ryukyu culture and has transformed islands into a pleasant land, a unique place, and shared identity for the community. CONCLUSIONS Fukugi windbreaks provide significant ecosystem services, such as biodiversity in the forest, reducing soil erosion, and spiritual and cultural values. A combination of biophysical environment, as well as tradition and custom, has played an essential role in tree species selection for windbreaks. The positive impacts that anthropogenic activities have had on the sustainability of woody species, namely, the active utilization of tree species, may have enabled the species to sustain. Strategies for protecting old-growth Fukugi trees, in addition to restoration of damaged trees, are needed to improve the sustainable management of Fukugi trees in Okinawa.
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Affiliation(s)
- Bixia Chen
- Department of Subtropical Agriculture, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara Town, Okinawa, 903-0213, Japan
- The United Graduate School of Agricultural Sciences, Kagoshima University, 1-21-24, Korimoto, Kagoshima, 890-0065, Japan
| | - Hikaru Akamine
- Department of Subtropical Agriculture, Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara Town, Okinawa, 903-0213, Japan.
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Lai YT, Huang YS, Chen CH, Lin YC, Jeng HT, Chang MC, Chen LJ, Lee CY, Hsu PC, Tai NH. Green Treatment of Phosphate from Wastewater Using a Porous Bio-Templated Graphene Oxide/MgMn-Layered Double Hydroxide Composite. iScience 2020; 23:101065. [PMID: 32361274 PMCID: PMC7195549 DOI: 10.1016/j.isci.2020.101065] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 03/15/2020] [Accepted: 04/12/2020] [Indexed: 01/23/2023] Open
Abstract
Excessive phosphorus in water is the primary culprit for eutrophication, which causes approximately $2.2 billion annual economic loss in the United States. This study demonstrates a phosphate-selective sustainable method by adopting Garcinia subelliptica leaves as a natural bio-template, where MgMn-layered double hydroxide (MgMn-LDH) and graphene oxide (GO) can be grown in situ to obtain L-GO/MgMn-LDH. After calcination, the composite shows a hierarchical porous structure and selective recognition of phosphate, which achieves significantly high and recyclable selective phosphate adsorption capacity and desorption rate of 244.08 mg-P g-1 and 85.8%, respectively. The detail variation of LDHs during calcination has been observed via in situ transmission electron microscope (TEM). Moreover, the roles in facilitating phosphate adsorption and antimicrobial ability of chemical constituents in Garcinia subelliptica leaves, biflavonoids, and triterpenoids have been investigated. These results indicate the proposed bio-templated adsorbent is practical and eco-friendly for phosphorus sustainability in commercial wastewater treatment.
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Affiliation(s)
- Yi-Ting Lai
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China; Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA
| | - Yu-Sheng Huang
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Chin-Hsuan Chen
- Department of Physics, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Yan-Cheng Lin
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Horng-Tay Jeng
- Department of Physics, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China; Physics Division, National Center for Theoretical Sciences, Hsinchu, Taiwan 30013, Republic of China; Institute of Physics, Academia Sinica, Taipei, Taiwan 11529, Republic of China
| | - Min-Chao Chang
- Material and Chemical Research Laboratories, Industrial Technology Research Institute, Hsinchu Taiwan 30011, Republic of China
| | - Lih-Juann Chen
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Chi-Young Lee
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China
| | - Po-Chun Hsu
- Department of Mechanical Engineering and Materials Science, Duke University, Durham, NC 27708, USA.
| | - Nyan-Hwa Tai
- Department of Materials Science and Engineering, National Tsing-Hua University, Hsinchu, Taiwan 30013, Republic of China.
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The Exploration of Natural Compounds for Anti-Diabetes from Distinctive Species Garcinia linii with Comprehensive Review of the Garcinia Family. Biomolecules 2019; 9:biom9110641. [PMID: 31652794 PMCID: PMC6920772 DOI: 10.3390/biom9110641] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 10/20/2019] [Accepted: 10/21/2019] [Indexed: 12/17/2022] Open
Abstract
Approximately 400 Garcinia species are distributed around the world. Previous studies have reported the extracts from bark, seed, fruits, peels, leaves, and stems of Garcinia mangostana, G. xanthochymus, and G. cambogia that were used to treat adipogenesis, inflammation, obesity, cancer, cardiovascular diseases, and diabetes. Moreover, the hypoglycemic effects and underlined actions of different species such as G. kola, G. pedunculata, and G. prainiana have been elucidated. However, the anti-hyperglycemia of G. linii remains to be verified in this aspect. In this article, the published literature was collected and reviewed based on the medicinal characteristics of the species Garcinia, particularly in diabetic care to deliberate the known constituents from Garcinia and further focus on and isolate new compounds of G. linii (Taiwan distinctive species) on various hypoglycemic targets including α-amylase, α-glucosidase, 5'-adenosine monophosphate-activated protein kinase (AMPK), insulin receptor kinase, peroxisome proliferator-activated receptor gamma (PPARγ), and dipeptidyl peptidase-4 (DPP-4) via the molecular docking approach with Gold program to explore the potential candidates for anti-diabetic treatments. Accordingly, benzopyrans and triterpenes are postulated to be the active components in G. linii for mediating blood glucose. To further validate the potency of those active components, in vitro enzymatic and cellular function assays with in vivo animal efficacy experiments need to be performed in the near future.
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Sabogal-Guáqueta AM, Carrillo-Hormaza L, Osorio E, Cardona-Gómez GP. Effects of biflavonoids from Garcinia madruno on a triple transgenic mouse model of Alzheimer's disease. Pharmacol Res 2017; 129:128-138. [PMID: 29229355 DOI: 10.1016/j.phrs.2017.12.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Revised: 11/07/2017] [Accepted: 12/01/2017] [Indexed: 12/27/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that is pathologically characterized by the deposition of β-amyloid (βA) peptides in senile plaques and neurofibrillary tangles in the brain. Flavonoids have recently been used to prevent and treat a variety of neurodegenerative diseases, but little is known about bioflavonoids. In this study, we evaluate whether a biflavonoid fraction (BF) exerts neuroprotective effects on an aged triple transgenic mouse mode of AD (3xTg-AD). Then, 21-24-month-old 3xTg AD mice were i.p. injected with 25mg/kg of a BF from Garcinia madruno composed of morelloflavone (65%), volkensiflavone (12%), GB 2a (11%), fukugiside (6%) and amentoflavone (0.4%) every 48h for 3 months. The BF treatment reduced βA deposition in different regions of the brain (the hippocampus, entorhinal cortex and amygdala), reduced βA1-40 and βA1-42 levels, BACE1-mediated cleavage of APP (CTFβ), tau pathology, astrogliosis and microgliosis in the brains of aged 3xTg-AD mice. Although the BF treatment weakly improved learning, animals treated with BF spent more time in the open arms of the elevated plus maze test and displayed greater risk assessment behavior than the control groups. In summary, the BF reverses histopathological hallmarks and reduces emotional disorders in the 3xTg-AD mouse model, suggesting that the biflavonoids from G. madruno represent a potential natural therapeutic option for AD if its bioavailability is improved.
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Affiliation(s)
- Angélica Maria Sabogal-Guáqueta
- Neuroscience Group of Antioquia, Cellular and Molecular Neurobiology Area - School of Medicine, SIU, University of Antioquia, Calle 70 # 52-21, Medellin, Colombia
| | - Luis Carrillo-Hormaza
- Grupo de Investigación en Sustancias Bioactivas, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquía, Calle 70 # 52-21, Medellin, Colombia
| | - Edison Osorio
- Grupo de Investigación en Sustancias Bioactivas, Facultad de Ciencias Farmacéuticas y Alimentarias, Universidad de Antioquía, Calle 70 # 52-21, Medellin, Colombia
| | - Gloria Patricia Cardona-Gómez
- Neuroscience Group of Antioquia, Cellular and Molecular Neurobiology Area - School of Medicine, SIU, University of Antioquia, Calle 70 # 52-21, Medellin, Colombia.
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