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Raksat A, Atanu MSH, Mendez S, Zerda RDL, Sun R, Cheenpracha S, Wall M, Simmons CJ, Williams PG, Tan GT, Wongwiwatthananukit S, Chang LC. Bioassay-Guided Isolation and Identification of Cytotoxic Compounds from Melaleuca quinquenervia Fruits. ACS OMEGA 2024; 9:18516-18525. [PMID: 38680310 PMCID: PMC11044245 DOI: 10.1021/acsomega.4c00769] [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: 01/26/2024] [Revised: 03/22/2024] [Accepted: 03/28/2024] [Indexed: 05/01/2024]
Abstract
The fruit extract of Melaleuca quinquenervia yielded a total of 19 compounds, including two novel spiro-biflavonoid enantiomers (1a and 1b) and a chalcone derivative (3). Their structures were determined through spectroscopic analysis. The enantiomers of the racemic mixture of compound 1 were successfully resolved into (+)-1 and (-)-1 using chiral-phase HPLC. Single-crystal X-ray diffraction analysis was also used to confirm the structure of 1. The enantiomeric configurations of 1 and 2 were determined through a comparison of the calculated and experimental electronic circular dichroism spectra. Compounds 2 (melanervin), 14 (methyl betulinate), 15 (3-O-acetylbetulinic acid), and 16 (pyracrenic acid) were found to be highly cytotoxic, with compound 16 showing superior growth inhibition of nonsmall cell lung cancer cells (A549 cells) (IC50 2.8 ± 0.1 μM) compared to cisplatin (IC50 3.3 ± 0.0 μM), a positive control chemotherapeutic drug. Both compound 16 and cisplatin were significantly more cytotoxic toward A549 lung cancer cells compared to nontumorigenic Vero E6 cells.
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Affiliation(s)
- Achara Raksat
- Department
of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai‘i at Hilo, Hilo, Hawaii 96720, United States
| | - Md Samiul Huq Atanu
- Department
of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai‘i at Hilo, Hilo, Hawaii 96720, United States
| | - Sheyanne Mendez
- X-ray
Diffraction Laboratory, Department of Chemistry, University of Hawai‘i at Hilo, 200 West Kawili Street, Hilo, Hawai‘i 96720, United States
| | - Rafael de la Zerda
- Department
of Chemistry, University of Hawai‘i
at Manoa, 2545 McCarthy Mall, Honolulu, Hawaii 96822, United States
| | - Rui Sun
- Department
of Chemistry, University of Hawai‘i
at Manoa, 2545 McCarthy Mall, Honolulu, Hawaii 96822, United States
| | - Sarot Cheenpracha
- Division
of Chemistry, School of Science, University
of Phayao, Phayao 56000, Thailand
| | - Marisa Wall
- Daniel
K. Inouye U.S. Pacific Basin Agricultural Research Center, Hilo, Hawaii 96720, United States
| | - Charles J. Simmons
- X-ray
Diffraction Laboratory, Department of Chemistry, University of Hawai‘i at Hilo, 200 West Kawili Street, Hilo, Hawai‘i 96720, United States
| | - Philip G. Williams
- Department
of Chemistry, University of Hawai‘i
at Manoa, 2545 McCarthy Mall, Honolulu, Hawaii 96822, United States
| | - Ghee T. Tan
- Department
of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai‘i at Hilo, Hilo, Hawaii 96720, United States
| | - Supakit Wongwiwatthananukit
- Department
of Pharmacy Practice, The Daniel K. Inouye College of Pharmacy, University of Hawai‘i at Hilo, Hilo, Hawaii 96720, United States
| | - Leng Chee Chang
- Department
of Pharmaceutical Sciences, The Daniel K. Inouye College of Pharmacy, University of Hawai‘i at Hilo, Hilo, Hawaii 96720, United States
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2
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Shao Y, Xu C, Li Q, Zhang Y, Cai Z, Yu H, Gu M, Su Y, Han H, Liao Z. Structures and Tumor Cell Lines Proliferation Activities of Triterpenes Isolated from Astilbe grandis. Chem Biodivers 2024; 21:e202400100. [PMID: 38263951 DOI: 10.1002/cbdv.202400100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 01/23/2024] [Accepted: 01/23/2024] [Indexed: 01/25/2024]
Abstract
A total of seven compounds, including four triterpene acids and three triterpene lactones, were isolated from the ethanolic extract of the roots of Astilbe grandis Stapf ex Wils. Two of the triterpene lactones (1-2) were never reported before and compounds 3-5 were isolated for the first time from the plant. The structures of these compounds were all identified by spectroscopic analysis. Compounds 1-2 were analyzed by 2D NMR and their absolute configurations were determined using experimental CD in comparison with calculated ECD values. The structure of compound 1 was also further confirmed by single crystal X-ray diffraction analysis. The cytotoxicity of compounds 1-7 on A549, Caco-2, H460 and Skov-3 tumor cells were all evaluated using CCK-8. They all exhibited positive inhibitory effects on Caco-2 tumor cells with IC50 less than10 μM, while the inhibitory effects on H460 tumor cells were more moderate. Unfortunately, they displayed little apparent cytotoxicity to the other two types of cells.
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Affiliation(s)
- Yuanling Shao
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Chensen Xu
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Qing Li
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Yu Zhang
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Zhuoer Cai
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Haolin Yu
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Minmin Gu
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Yunyun Su
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
| | - Hongping Han
- School of Chemistry and Chemical Engineering, Qinghai Normal University, the Key Laboratory of Medicinal Plant and Animal Resources of Qinghai-Tibetan Plateau in Qinghai Province, Xining, 810016, China
| | - Zhixin Liao
- Department of Pharmaceutical Engineering, School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research, Southeast University, Nanjing, China E-mail: address
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Chen JK, Ge ZY, Liao XW, Xue J, Wu L, Liang LF. α-Glucosidase Inhibitory Phytochemical Components of Chinese Endemic Plant Whitfordiodendron filipes var. tomentosum. PLANTS (BASEL, SWITZERLAND) 2024; 13:692. [PMID: 38475538 DOI: 10.3390/plants13050692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/14/2024]
Abstract
Whitfordiodendron filipes var. tomentosum is an endemic plant in China. There have been no chemical or pharmacological studies of this plant reported before. In the current research, eight triterpenes and two steroids were obtained. Their structures were established by the analysis of NMR data and comparison with those reported in the literature. These ten structurally diverse compounds comprised five distinct carbon frameworks with different functionalities. The chemotaxonomic significance of these secondary metabolites was discussed, disclosing the common components between the variant W. filipes var. tomentosum and the species W. filipe. Evaluation of α-glucosidase inhibitory activities of these isolates disclosed that compounds 1, 2, 4, and 6 exhibited significant α-glucosidase inhibitory activities (IC50 = 16.6-19.2 μM), which were close in value to the positive control acarbose (IC50 = 11.5 μM). Moreover, the binding modes between the biologically active compounds 1, 2, 4, and 6 and the α-glucosidase protein were preliminarily studied using molecular docking. This study not only showed the chemical and biological profile of the plant W. filipes var. tomentosum but also revealed that these components could be developed as hypoglycemic lead compounds.
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Affiliation(s)
- Jun-Kun Chen
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
- College of Forestry, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
| | - Zeng-Yue Ge
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
- College of Forestry, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
| | - Xiao-Wen Liao
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
- College of Forestry, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
| | - Jun Xue
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
- College of Forestry, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
| | - Lei Wu
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
- College of Forestry, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
| | - Lin-Fu Liang
- College of Materials Science and Engineering, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
- College of Forestry, Central South University of Forestry and Technology, 498 South Shaoshan Road, Changsha 410004, China
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Li JC, Li SY, Tang JX, Liu D, Feng XY, Rao KR, Zhao XD, Li HM, Li RT. Triterpenoids, steroids and other constituents from Euphorbia kansui and their anti-inflammatory and anti-tumor properties. PHYTOCHEMISTRY 2022; 204:113449. [PMID: 36170888 DOI: 10.1016/j.phytochem.2022.113449] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 09/17/2022] [Accepted: 09/18/2022] [Indexed: 06/16/2023]
Abstract
Six undescribed triterpenoids (euphokanols A-F), two undescribed C21-steroidal glycosides (euphokanosides A and B), together with fifty-four known compounds were isolated from the roots of Euphorbia kansui. Their structures were demonstrated by extensive spectroscopic data (1D, 2D NMR and HR-ESI-MS), and the absolute configuration of euphokanol A was elucidated based on electronic circular dichroism (ECD) calculation. Among them, euphokanol A was a tetracyclic triterpenoid with a 5,10-epoxy moiety and concurrent rearrangement of Me-19(10 → 9) and Me-30 (14 → 8), while euphokanols B and C were rare 19(10 → 9) abeo-tirucallane-type triterpenoids with Δ5(10) double bonds and 7,8-epoxy moieties. In addition, ten C21-steroidal glycosides were isolated from Euphorbia plants for the first time. Moreover, cynotophylloside B, caudatin, 5α,8α-epidioxy-22E-ergosta-6,22-diene-3β-ol, 6β,7β-epoxy-3β,4β,5β-trihydroxyl-20-deoxyingenol, 13-hydroxyingenol-3-(2,3- dimethylbutanoate)-13-dodecanoate, ingenol, 3-O-benzoyl-13-O-dodecanoateingenol, 3-O-(2'E,4'Z-decadienoyl)-20-O-acetylingenol, 20-O-acetylingenol and 20- deoxyingenol exhibited significant inhibition on NO production with IC50 values of 9.10, 17.38, 1.71, 0.55, 0.57, 12.22, 0.56, 0.30, 11.21 and 2.98 μM, respectively. Furthermore, wilfoside KIN, cynsaccatol L, kanesulone A, and 3β,7β,15β-triacetyloxy-5α-benzoyloxy-2α,8α-dihydroxyjatropha-6(17),11E-diene-9, 14-dione showed cytotoxicity against HepG2 cell line, with IC50 values of 12.55, 12.61, 18.24 and 18.26 μM, respectively. 13-Hydroxyingenol-3-(2,3-dimethylbutanoate)-13- dodecanoate exhibited anti-proliferation activity on MCF-7 cell line with an IC50 value of 17.12 μM. Specifically, euphol selectively inhibited the growth of human glioma stem cells (GSC-3# and GSC-12#), with IC50 values of 8.89 and 13.00 μM, respectively.
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Affiliation(s)
- Jian-Chun Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China
| | - Shu-Yi Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China
| | - Jian-Xian Tang
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China
| | - Dan Liu
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China
| | - Xiao-Yi Feng
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China
| | - Kai-Rui Rao
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China
| | - Xu-Dong Zhao
- Laboratory of Animal Tumor Models, West China Hospital, Sichuan University, Chengdu, 610041, Sichuan, PR China
| | - Hong-Mei Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China.
| | - Rong-Tao Li
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming, 650500, Yunnan, PR China.
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Jang WS, Kim JH. Characteristics and Mechanism of Microwave-assisted Drying of Amorphous Paclitaxel for Removal of Residual Solvent. BIOTECHNOL BIOPROC E 2019. [DOI: 10.1007/s12257-019-0076-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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6
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Anti-inflammatory pentacyclic triterpenes from the stems of Euonymus carnosus. Fitoterapia 2017; 118:21-26. [DOI: 10.1016/j.fitote.2017.01.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 01/20/2017] [Accepted: 01/29/2017] [Indexed: 11/15/2022]
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7
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Ling YC, Bush R, Grice K, Tulipani S, Berwick L, Moreau JW. Distribution of iron- and sulfate-reducing bacteria across a coastal acid sulfate soil (CASS) environment: implications for passive bioremediation by tidal inundation. Front Microbiol 2015; 6:624. [PMID: 26191042 PMCID: PMC4490247 DOI: 10.3389/fmicb.2015.00624] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Accepted: 06/08/2015] [Indexed: 11/13/2022] Open
Abstract
Coastal acid sulfate soils (CASS) constitute a serious and global environmental problem. Oxidation of iron sulfide minerals exposed to air generates sulfuric acid with consequently negative impacts on coastal and estuarine ecosystems. Tidal inundation represents one current treatment strategy for CASS, with the aim of neutralizing acidity by triggering microbial iron- and sulfate-reduction and inducing the precipitation of iron-sulfides. Although well-known functional guilds of bacteria drive these processes, their distributions within CASS environments, as well as their relationships to tidal cycling and the availability of nutrients and electron acceptors, are poorly understood. These factors will determine the long-term efficacy of "passive" CASS remediation strategies. Here we studied microbial community structure and functional guild distribution in sediment cores obtained from 10 depths ranging from 0 to 20 cm in three sites located in the supra-, inter- and sub-tidal segments, respectively, of a CASS-affected salt marsh (East Trinity, Cairns, Australia). Whole community 16S rRNA gene diversity within each site was assessed by 454 pyrotag sequencing and bioinformatic analyses in the context of local hydrological, geochemical, and lithological factors. The results illustrate spatial overlap, or close association, of iron-, and sulfate-reducing bacteria (SRB) in an environment rich in organic matter and controlled by parameters such as acidity, redox potential, degree of water saturation, and mineralization. The observed spatial distribution implies the need for empirical understanding of the timing, relative to tidal cycling, of various terminal electron-accepting processes that control acid generation and biogeochemical iron and sulfur cycling.
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Affiliation(s)
- Yu-Chen Ling
- School of Earth Sciences, University of MelbourneMelbourne, VIC, Australia
| | - Richard Bush
- Southern Cross GeoScience, Southern Cross UniversityLismore, NSW, Australia
| | - Kliti Grice
- Department of Chemistry, Western Australia Organic and Isotope Geochemistry Centre, The Institute for Geoscience Research, Curtin UniversityPerth, WA, Australia
| | - Svenja Tulipani
- Department of Chemistry, Western Australia Organic and Isotope Geochemistry Centre, The Institute for Geoscience Research, Curtin UniversityPerth, WA, Australia
| | - Lyndon Berwick
- Department of Chemistry, Western Australia Organic and Isotope Geochemistry Centre, The Institute for Geoscience Research, Curtin UniversityPerth, WA, Australia
| | - John W. Moreau
- School of Earth Sciences, University of MelbourneMelbourne, VIC, Australia
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9
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Rattanaburi S, Mahabusarakam W, Phongpaichit S, Carroll AR. A new chromone from the leaves of Melaleuca cajuputi Powell. Nat Prod Res 2012; 27:221-5. [DOI: 10.1080/14786419.2012.666750] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Suthida Rattanaburi
- a Department of Chemistry, Faculty of Science , Prince of Songkla University , Hat Yai , Songkhla 90112 , Thailand
| | - Wilawan Mahabusarakam
- a Department of Chemistry, Faculty of Science , Prince of Songkla University , Hat Yai , Songkhla 90112 , Thailand
- b Natural Product Research Center, Faculty of Science , Prince of Songkla University , Hat Yai , Songkhla 90112 , Thailand
| | - Souwalak Phongpaichit
- b Natural Product Research Center, Faculty of Science , Prince of Songkla University , Hat Yai , Songkhla 90112 , Thailand
- c Department of Microbiology, Faculty of Science , Prince of Songkla University , Hat Yai , Songkhla 90112 , Thailand
| | - Anthony R. Carroll
- d Griffith (Gold Coast Campus), School of Environment Griffith University , Queensland Q4222 , Australia
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Abdel Bar FM, Zaghloul AM, Bachawal SV, Sylvester PW, Ahmad KF, El Sayed KA. Antiproliferative triterpenes from Melaleuca ericifolia. JOURNAL OF NATURAL PRODUCTS 2008; 71:1787-1790. [PMID: 18826277 DOI: 10.1021/np800360a] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Three new 28-norlupane triterpenes, 28-norlup-20(29)-en-3beta-hydroxy-17beta-hydroperoxide (1), 28-norlup-20(29)-en-3beta-hydroxy-17alpha-hydroperoxide (2), and 20 S-17beta,29-epoxy-28-norlupan-3beta-ol (3), were isolated from the leaves of Melaleuca ericifolia along with eight known pentacyclic triterpenes. The structures of the new compounds were elucidated by spectroscopic methods including 1D and 2D NMR spectroscopy and mass spectrometry. The isolated triterpenes were evaluated for antiproliferative activity against the malignant +SA mammary epithelial cell line.
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Affiliation(s)
- Fatma M Abdel Bar
- Department of Basic Pharmaceutical Sciences, College of Pharmacy, University of Louisiana at Monroe, 700 University Avenue, Monroe, Louisiana 71209, USA
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