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Phan UTT, Nguyen HD, Nguyen TKO, Tran TH, Le TH, Tran TTP. Anti-inflammatory effect of Piper longum L. fruit methanolic extract on lipopolysaccharide-treated RAW 264.7 murine macrophages. Heliyon 2024; 10:e26174. [PMID: 38404825 PMCID: PMC10884859 DOI: 10.1016/j.heliyon.2024.e26174] [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] [Received: 10/23/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/27/2024] Open
Abstract
Context The Piper species was studied several potential properties such as anti-tumor, anti-inflammatory and antioxidant activity. However, the specific anti-inflammatory activity of the extract from the fruits of P. longum L. has not been investigated. Objectives Our study want to examine the anti-inflammatory effects of P. longum L. fruit methanolic extracts (PLE) on lipopolysachharide (LPS)-stimulated RAW 264.7 murine macrophages to understand the mechanism of this effect. Method This study examined the chemical profiling of PLE by LC-HRMS analysis and measured the presence of nitric oxide (NO), interleukin-6 (IL-6) and tumor necrosis factor alpha (TNF-α) in the supernatant using the Griess reagent assay and enzyme-linked immunosorbent assay (ELISA), respectively. The mRNA expression of IL-6, TNF-α, cyclooxygenase-2 (COX-2), and inducible nitric oxide synthase (iNOS) were evaluated by using real-time quantitative polymerase chain reaction (RT-qPCR). Furthermore, the protein expression of COX-2, iNOS and the phosphorylation of MAPK family, c-Jun N-terminal kinase (JNK), p38 in protein level were observed by western blotting. Result PLE have detected 66 compounds which belong to different classes such as alkaloids, flavonoids, terpenoids, phenolics, lactones, and organic acids inhibited nitric oxide products with the IC50 = 28.5 ± 0.91 μg/mL. Moreover, PLE at 10-100 μg/mL up-regulate HO-1 protein expression from 3 to 10 folds at 3 h. It also downregulated the mRNA and protein expression of iNOS, COX-2, decreased IL-6 and TNF-α secretion by modulating the mitogen-activated protein kinase (MAPK) signaling pathway, specifically by decreasing the phosphorylation of p38 and JNK. Conclusion These results shown chemical profiling of PLE and demonstrated that PLE exhibits anti-inflammatory effects by regulating the MAPK family and could be a potential candidate for the treatment of inflammatory diseases.
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Affiliation(s)
- Uyen Thi Tu Phan
- University of Science and Technology of Hanoi (USTH), Vietnam Academic Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Viet Nam
| | - Hai Dang Nguyen
- University of Science and Technology of Hanoi (USTH), Vietnam Academic Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Viet Nam
| | - Thi Kieu Oanh Nguyen
- University of Science and Technology of Hanoi (USTH), Vietnam Academic Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Viet Nam
| | - Tuan Hiep Tran
- Faculty of Pharmacy, PHENIKAA University, Yen Nghia, Ha Dong, Hanoi, 12116, Viet Nam
| | - Thanh Huong Le
- University of Science and Technology of Hanoi (USTH), Vietnam Academic Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Viet Nam
| | - Thi Thu Phuong Tran
- University of Science and Technology of Hanoi (USTH), Vietnam Academic Science and Technology (VAST), 18 Hoang Quoc Viet, Nghia Do, Cau Giay, Hanoi, Viet Nam
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Megawati, Ariani N, Minarti, Darmawan A, Eka Prastya M. Investigations of Antibacterial, Antioxidant, and Antidiabetic Potential of Extract and Its Active Fractions from the Leaves of Horsfieldia spicata (Roxb.) J. Sinclair. Chem Biodivers 2023; 20:e202300113. [PMID: 37165965 DOI: 10.1002/cbdv.202300113] [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: 01/23/2023] [Revised: 05/02/2023] [Accepted: 05/09/2023] [Indexed: 05/12/2023]
Abstract
This study was undertaken to analyse the potential bioactivities including antibacterial, antioxidant and antidiabetic derived from the methanolic extract and the column chromatography ethyl acetate fraction (AcOEt Fr) of Horsfieldia spicata leaves. Methanolic extract and 4 other fractions was calculated for total phenol and flavonoid contents along with tested for antibacterial, antioxidant and antidiabetic properties. Interestingly, the AcOEt Fr had the highest value for total flavonoid content and the best antioxidant, and antidiabetic activities. Therefore, the AcOEt Fr was further separated using column chromatography technique for obtaining 9 selected fractions namely fraction 1 (F1) - fraction 9 (F9) which were further tested. The results showed that the AcOEt column chromatography fractions namely F2, F3, F4 and F6 had the best clear inhibition antibacterial value against all bacterial tested. In addition, these fractions also exhibited better Minimum Inhibitory Concentrations (MIC) and Minimum Bactericidal Concentrations (MBC) values than others. Antioxidant, 2,2-diphenylpicrylhydrazyl (DPPH) assayed indicated that AcOEt Fr had the strongest IC50 value of 47.30 μg/mL. Further, F4 column chromatography fraction showed the best inhibition against α-Glucosidase enzyme related to antidiabetic activity with an IC50 value of 6.11 μg/mL. Liquid chromatography tandem-mass spectrometry (LC/MS/MS) analysis identified that F4 derived from AcOEt fraction had several compounds belonging to the flavonoid and phenolics such as 3',5-dihydroxy-7,4'-dimethoxyflavone, 5,7-dihydroxy-3-(4'-hydroxybenzyl)chromone, and Kadsurenin I.
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Affiliation(s)
- Megawati
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research, and Innovation Agency (BRIN), Kawasan Sains dan Teknologi (KST) B.J Habibie (PUSPIPTEK) Serpong, 15314>, South Tangerang, Banten, Indonesia
| | - Novita Ariani
- Research Center for Chemistry, National Research and Innovation Agency (BRIN), Gd. 452 Kawasan Sains dan Teknologi (KST) B.J Habibie (PUSPIPTEK) Serpong, South Tangerang, Banten, Indonesia, 15314
| | - Minarti
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research, and Innovation Agency (BRIN), Kawasan Sains dan Teknologi (KST) B.J Habibie (PUSPIPTEK) Serpong, 15314>, South Tangerang, Banten, Indonesia
| | - Akhmad Darmawan
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research, and Innovation Agency (BRIN), Kawasan Sains dan Teknologi (KST) B.J Habibie (PUSPIPTEK) Serpong, 15314>, South Tangerang, Banten, Indonesia
| | - Muhammad Eka Prastya
- Research Center for Pharmaceutical Ingredients and Traditional Medicine, National Research, and Innovation Agency (BRIN), Kawasan Sains dan Teknologi (KST) B.J Habibie (PUSPIPTEK) Serpong, 15314>, South Tangerang, Banten, Indonesia
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Salazar D, Marquis RJ. Testing the role of local plant chemical diversity on plant-herbivore interactions and plant species coexistence. Ecology 2022; 103:e3765. [PMID: 35611398 DOI: 10.1002/ecy.3765] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 03/24/2022] [Accepted: 04/20/2022] [Indexed: 11/09/2022]
Abstract
Accumulating evidence suggests that herbivorous insects influence local composition and richness of Neotropical plant species, particularly in species-rich genera. Species richness, phylogenetic diversity, and chemical diversity all influence the ability of insect herbivores to find and utilize their hosts. The relative impact of these components of diversity on species coexistence and plant-herbivore interactions is not well understood. We constructed 60 local communities of up to 13 species of Piper (Piperaceae) in native, mature forest at a lowland wet forest location in Costa Rica. Species composition of each community was chosen such that species richness, phylogenetic diversity, and GCMS-based chemical diversity were varied independently among communities. We predicted that chemical diversity would most strongly affect the communities across time, with smaller effects of taxonomic and phylogenetic diversity. Thirteen months after the experimental planting, we assessed survivorship of each cutting, measured total leaf area loss of the survivors, leaf area loss to generalist and specialist herbivorous insect species, and local extinction of species. Generalist and specialist herbivory decreased with increasing levels of species richness and phylogenetic diversity, respectively. Surprisingly, there was no independent effect of chemical diversity on any of the three measures of herbivore damage. Nevertheless, plots with a higher chemical and phylogenetic diversity showed decreased plant mortality and local species extinction. Overall, our results suggest that both chemical and phylogenetic similarity are important factors in the assembly and maintenance of tropical plant communities. The fact that chemical diversity influences plant mortality suggests that leaf herbivores, and possibly other plant natural enemies, could increase plant diversity via selective mortality of similar chemotypes.
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Affiliation(s)
- Diego Salazar
- International Center for Tropical Botany, Institute of Environment, Department of Biological Sciences, Florida International University
| | - Robert J Marquis
- Department of Biology and the Whitney R. Harris World Ecology Center, University of Missouri-St. Louis, St. Louis, MO, United States
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Cárdenas-Laverde D, Barbosa-Cornelio R, Coy-Barrera E. Antifungal Activity against Fusarium oxysporum of Botanical End-Products: An Integration of Chemical Composition and Antifungal Activity Datasets to Identify Antifungal Bioactives. PLANTS (BASEL, SWITZERLAND) 2021; 10:plants10122563. [PMID: 34961034 PMCID: PMC8705217 DOI: 10.3390/plants10122563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 11/22/2021] [Accepted: 11/22/2021] [Indexed: 05/10/2023]
Abstract
Plants produce various compounds as defensive barriers to naturally control fungal diseases. Among them, vascular wilt caused by Fusarium oxysporum is one of the most destructive diseases in crops, causing relevant economic losses. The application of synthetic fungicides is the most used management for this disease. However, this kind of method also involves adverse environmental impacts. Therefore, alternative methods are continuously being developed as a strategy to be involved in integrated pest management programs. Thus, as part of our research on antifungals of plant origin, a group of botanical extracts was assessed for the respective inhibitory effect on mycelium and conidia of F. oxysporum. Mycelial growth inhibition was measured in 12-well plates containing amended semi-solid medium, whereas conidial susceptibility was determined through microdilution. The identification of the bioactive compounds among test extracts was performed using an indirect approach, consisting of the integration of chemical composition and antifungal activity datasets through single-Y orthogonal partial least squares (OPLS) regression. Results showed that Piper aduncum extract was the most potent mycelial growth inhibitor whereas P. elongatum exhibited the best effect on conidia susceptibility. The active compounds identified through statistical integration and subsequent isolation were piperaduncin C, asebogenin and (-)-methyllinderatin. These findings indicated that the integrative, indirect approach is useful for the identification of bioactive metabolites from botanical extracts to be further used as biological protective agents against this phytopathogen.
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França LP, Amaral ACF, Ramos ADS, Ferreira JLP, Maria ACB, Oliveira KMT, Araujo ES, Branches ADS, Silva JN, Silva NG, Barros GDA, Chaves FCM, Tadei WP, Silva JRDA. Piper capitarianum essential oil: a promising insecticidal agent for the management of Aedes aegypti and Aedes albopictus. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:9760-9776. [PMID: 33159226 DOI: 10.1007/s11356-020-11148-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 10/05/2020] [Indexed: 06/11/2023]
Abstract
Mosquitoes are responsible for serious public health problems worldwide, and as such, Aedes aegypti and Aedes albopictus are important vectors in the transmission of dengue, chikungunya, and Zika in Brazil and other countries of the world. Due to growing resistance to chemical insecticides among populations of vectors, environmentally friendly strategies for vector management are receiving ever more attention. Essential oils (EOs) extracted from plants have activities against insects with multiple mechanisms of action. These mechanisms hinder the development of resistance, and have the advantages of being less toxicity and biodegradable. Thus, the present study aimed to evaluate the chemical composition of the EOs obtained from Piper capitarianum Yunck, as well as evaluating their insecticidal potential against Aedes aegypti and A. albopictus, and their toxicity in relation to Artemia salina. The yields of the EOs extracted from the leaves, stems, and inflorescences of P. capitarianum were 1.2%, 0.9%, and 0.6%, respectively, and their main constituents were trans-caryophyllene (20.0%), α-humulene (10.2%), β-myrcene (10.5%), α-selinene (7.2%), and linalool (6.0%). The EO from the inflorescences was the most active against A. aegypti and A. albopictus, and exhibited the respective larvicidal (LC50 = 87.6 μg/mL and 76.1 μg/mL) and adulticide activities (LC50 = 126.2 μg/mL and 124.5 μg/mL). This EO was also the most active in the inhibition of AChE, since it presented an IC50 value of 14.2 μg/mL. Its larvicidal effect was observed under optical and scanning electron microscopy. Additionally, non-toxic effects against A. salina were observed. Docking modeling of trans-caryophyllene and α-humulene on sterol carrier protein-2 (SCP-2) suggests that both molecules have affinity with the active site of the enzyme, which indicates a possible mechanism of action. Therefore, the essential oil of P. capitarianum may be used in the development of new insecticide targets for the control of A. aegypti and A. albopictus in the Amazonian environment.
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Affiliation(s)
- Leandro P França
- Chromatography Laboratory, Chemistry Department, Federal University of Amazonas, Manaus, AM, Brazil
| | - Ana Claudia F Amaral
- Laboratory of Medicinal Plants and Derivatives, Department of Chemistry of Natural Products, Farmanguinhos, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Aline de S Ramos
- Laboratory of Medicinal Plants and Derivatives, Department of Chemistry of Natural Products, Farmanguinhos, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - José Luiz P Ferreira
- Laboratory of Medicinal Plants and Derivatives, Department of Chemistry of Natural Products, Farmanguinhos, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Ana Clara B Maria
- Laboratory of Medicinal Plants and Derivatives, Department of Chemistry of Natural Products, Farmanguinhos, Oswaldo Cruz Foundation, Rio de Janeiro, RJ, Brazil
| | - Kelson Mota T Oliveira
- Laboratory of Theoretical and Computational Chemistry, Chemistry Department, Federal University of Amazonas, Manaus, AM, Brazil
| | - Earle S Araujo
- Laboratory of Theoretical and Computational Chemistry, Chemistry Department, Federal University of Amazonas, Manaus, AM, Brazil
| | - Adjane Dalvana S Branches
- Laboratory of Theoretical and Computational Chemistry, Chemistry Department, Federal University of Amazonas, Manaus, AM, Brazil
| | - Jonathas N Silva
- Laboratory of Theoretical and Computational Chemistry, Chemistry Department, Federal University of Amazonas, Manaus, AM, Brazil
| | - Noam G Silva
- Laboratory of Theoretical and Computational Chemistry, Chemistry Department, Federal University of Amazonas, Manaus, AM, Brazil
| | - Gabriel de A Barros
- Laboratory of Theoretical and Computational Chemistry, Chemistry Department, Federal University of Amazonas, Manaus, AM, Brazil
| | | | - Wanderli P Tadei
- Laboratory of Malaria and Dengue, Institute for Research in the Amazon, Manaus, AM, Brazil
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XIAP as a Target of New Small Organic Natural Molecules Inducing Human Cancer Cell Death. Cancers (Basel) 2019; 11:cancers11091336. [PMID: 31505859 PMCID: PMC6770071 DOI: 10.3390/cancers11091336] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Accepted: 09/04/2019] [Indexed: 12/11/2022] Open
Abstract
X-linked inhibitor of apoptosis protein (XIAP) is an emerging crucial therapeutic target in cancer. We report on the discovery and characterisation of small organic molecules from Piper genus plants exhibiting XIAP antagonism, namely erioquinol, a quinol substituted in the 4-position with an alkenyl group and the alkenylphenols eriopodols A–C. Another isolated compound was originally identified as gibbilimbol B. Erioquinol was the most potent inhibitor of human cancer cell viability when compared with gibbilimbol B and eriopodol A was listed as intermediate. Gibbilimbol B and eriopodol A induced apoptosis through mitochondrial permeabilisation and caspase activation while erioquinol acted on cell fate via caspase-independent/non-apoptotic mechanisms, likely involving mitochondrial dysfunctions and aberrant generation of reactive oxygen species. In silico modelling and molecular approaches suggested that all molecules inhibit XIAP by binding to XIAP-baculoviral IAP repeat domain. This demonstrates a novel aspect of XIAP as a key determinant of tumour control, at the molecular crossroad of caspase-dependent/independent cell death pathway and indicates molecular aspects to develop tumour-effective XIAP antagonists.
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