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Santos JS, Galvão JG, Mendonça MRC, Costa AMB, Silva ARST, Oliveira DS, Santos ADJ, Lira AAM, Scher R, Sales Júnior PA, Pereira VRA, Formiga FR, Nunes RS. Encapsulation of Citrus sinensis essential oil and R-limonene in lipid nanocarriers: A potential strategy for the treatment of leishmaniasis. Int J Pharm 2024; 662:124464. [PMID: 39033939 DOI: 10.1016/j.ijpharm.2024.124464] [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: 04/10/2024] [Revised: 07/10/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024]
Abstract
Leishmaniases, a group of neglected tropical diseases caused by an intracellular parasite of the genus Leishmania, have significant impacts on global health. Current treatment options are limited due to drug resistance, toxicity, and high cost. This study aimed to develop nanostructured lipid carriers (NLCs) for delivering Citrus sinensis essential oil (CSEO) and its main constituent, R-limonene, against leishmaniasis. The influence of surface-modified NLCs using chitosan was also examined. The NLCs were prepared using a warm microemulsion method, and surface modification with chitosan was achieved through electrostatic interaction. These nanocarriers were characterized by differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscopy, and dynamic light scattering (DLS). In vitro cytotoxicity was assessed in L929 and RAW 264.7 cells, and leishmanicidal activity was evaluated against promastigote and amastigote forms. The NLCs were spherical, with particle sizes ranging from 97.9 nm to 111.3 nm. Chitosan-coated NLCs had a positive surface charge, with zeta potential values ranging from 45.8 mV to 59.0 mV. Exposure of L929 cells to NLCs resulted in over 70 % cell viability. Conversely, surface modification significantly reduced the viability of promastigotes (93 %) compared to free compounds. Moreover, chitosan-coated NLCs presented a better IC50 against the amastigote forms than uncoated NLCs. Taken together, these findings demonstrate the feasibility of using NLCs to overcome the limitations of current leishmaniasis treatments, warranting further research.
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Affiliation(s)
- Jeferson S Santos
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil.
| | - Juliana G Galvão
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
| | - Marcos R C Mendonça
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
| | - Amanda M B Costa
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
| | - Audrey R S T Silva
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
| | - Daniela S Oliveira
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
| | - Adriana de J Santos
- Process Engineering Program, University of Tiradentes (UNIT), Aracaju, SE 49032-490, Brazil
| | - Ana Amélia M Lira
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
| | - Ricardo Scher
- Departament of Morphology, Federal University of Sergipe, São Cristóovão 49100-000, Sergipe, Brazil
| | | | | | - Fábio Rocha Formiga
- Aggeu Magalhães Institute (IAM), Oswaldo Cruz Foundation (FIOCRUZ), 50670-420 Recife, PE, Brazil; Faculty of Medical Sciences (FCM), University of Pernambuco (UPE), 52171-011 Recife, PE, Brazil
| | - Rogéria S Nunes
- Departament of Pharmacy, Federal University of Sergipe, São Cristóvão 49100-000, Sergipe, Brazil
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2
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Negreiros HA, Fontele SBC, Batista FA, Farias MGD, Silva FCCD, Nascimento MLLBD, Moura KGD, Correa LDS, Pereira ARS, Lopes LDO, Ferreira PMP, Mendes AN, Gonçalves JCR, Melo-Cavalcante AADC, Sousa JMDCE. Toxicogenetic profile of the monoterpene alpha-terpineol on normal and tumor eukaryotic cells. Drug Chem Toxicol 2024; 47:427-435. [PMID: 36912194 DOI: 10.1080/01480545.2023.2188440] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 02/28/2023] [Indexed: 03/14/2023]
Abstract
Alpha-terpineol is a monoterpene alcohol found in essential oils from medicinal plants with some well-known pharmacological activities and widely used in cosmetics. However, the toxicological effects and additional pharmacological activities need to be clarified. Thus, the study evaluated the toxic, cytotoxic, genotoxic, hemolytic, and oxidative potential of alpha-terpineol in non-clinical bioassays. Different concentrations of alpha-terpineol were used in bioassays, including MTT (50, 100, 200, and 400 μg/mL), Artemia salina (6.25-400 μg/mL), Allium cepa (10, 50, and 100 μg/mL), comet assay (100, 200, and 500 μg/mL), cytokinesis-block micronucleus (100, 250, and 500 μg/mL), confocal microscopy for apoptosis quantification (100 and 500 μg/mL), hemolysis and Saccharomyces cerevisiae central disk test (10, 35, and 75 μg/mL). For the MTT test, alpha-terpineol was more cytotoxic on melanoma murine B16-F10 cells rather than macrophages. For A. salina test, alpha-terpineol showed LC50 of 68.29 and 76.36 μg/mL for 24 h and 48 h of exposure time, respectively. Meanwhile, alpha-terpineol was also cytotoxic to meristematic cells, which revealed inhibition of cellular division and mutagenic action by formation of bridges and delayed anaphases. The compound increased damage index and frequency of damage corroborated by the presence of micronuclei, bridges and nuclear buds at 500 μg/mL, but it caused neither hemolysis, oxidative damage on the S. cerevisiae nor cell death in normal fibroblasts. The findings indicate alpha-terpineol has cytotoxic potential by cytogenetic and molecular mechanisms associated with apoptosis and probable target effects against melanoma cells.
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Affiliation(s)
- Helber Alves Negreiros
- Postgraduation Program in Pharmaceutical Sciences, Laboratory of Research in Toxicological Genetics (LAPGENIC), Federal University of Piauí, Teresina, Brazil
| | | | - Felipe Alves Batista
- Department of Biophysics and Physiology, Laboratory of Experimental Cancerology (LabCancer), Federal University of Piauí, Teresina, Brazil
| | | | - Felipe Cavalcanti Carneiro da Silva
- Postgraduation Program in Pharmaceutical Sciences, Laboratory of Research in Toxicological Genetics (LAPGENIC), Federal University of Piauí, Teresina, Brazil
| | - Maria Luisa Lima Barreto do Nascimento
- Postgraduation Program in Pharmaceutical Sciences, Laboratory of Research in Toxicological Genetics (LAPGENIC), Federal University of Piauí, Teresina, Brazil
| | | | | | | | - Luana de Oliveira Lopes
- Postgraduation Program in Pharmaceutical Sciences, Laboratory of Research in Toxicological Genetics (LAPGENIC), Federal University of Piauí, Teresina, Brazil
| | - Paulo Michel Pinheiro Ferreira
- Department of Biophysics and Physiology, Laboratory of Experimental Cancerology (LabCancer), Federal University of Piauí, Teresina, Brazil
- Postgraduation Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | - Anderson Nogueira Mendes
- Department of Biophysics and Physiology, Laboratory of Experimental Cancerology (LabCancer), Federal University of Piauí, Teresina, Brazil
- Postgraduation Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, Brazil
| | | | - Ana Amélia de Carvalho Melo-Cavalcante
- Postgraduation Program in Pharmaceutical Sciences, Laboratory of Research in Toxicological Genetics (LAPGENIC), Federal University of Piauí, Teresina, Brazil
| | - João Marcelo de Castro E Sousa
- Postgraduation Program in Pharmaceutical Sciences, Laboratory of Research in Toxicological Genetics (LAPGENIC), Federal University of Piauí, Teresina, Brazil
- Department of Biochemistry and Pharmacology, Federal University of Piauí, Teresina, Brazil
- Postgraduation Program in Biotechnology (RENORBIO), Federal University of Piauí, Teresina, Brazil
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3
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Izbicka E, Streeper RT. Mitigation of Insulin Resistance by Natural Products from a New Class of Molecules, Membrane-Active Immunomodulators. Pharmaceuticals (Basel) 2023; 16:913. [PMID: 37513825 PMCID: PMC10386479 DOI: 10.3390/ph16070913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 06/14/2023] [Accepted: 06/15/2023] [Indexed: 07/30/2023] Open
Abstract
Insulin resistance (IR), accompanied by an impaired cellular glucose uptake, characterizes diverse pathologies that include, but are not limited to, metabolic disease, prediabetes and type 2 diabetes. Chronic inflammation associated with deranged cellular signaling is thought to contribute to IR. The key molecular players in IR are plasma membrane proteins, including the insulin receptor and glucose transporter 4. Certain natural products, such as lipids, phenols, terpenes, antibiotics and alkaloids have beneficial effects on IR, yet their mode of action remains obscured. We hypothesized that these products belong to a novel class of bioactive molecules that we have named membrane-active immunomodulators (MAIMs). A representative MAIM, the naturally occurring medium chain fatty acid ester diethyl azelate (DEA), has been shown to increase the fluidity of cell plasma membranes with subsequent downstream effects on cellular signaling. DEA has also been shown to improve markers of IR, including blood glucose, insulin and lipid levels, in humans. The literature supports the notion that DEA and other natural MAIMs share similar mechanisms of action in improving IR. These findings shed a new light on the mechanism of IR mitigation using natural products, and may facilitate the discovery of other compounds with similar activities.
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Mechanism of cis-Nerolidol-Induced Bladder Carcinoma Cell Death. Cancers (Basel) 2023; 15:cancers15030981. [PMID: 36765938 PMCID: PMC9913136 DOI: 10.3390/cancers15030981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 01/30/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
Nerolidol is a naturally occurring sesquiterpene alcohol with multiple properties, including antioxidant, antibacterial, and antiparasitic activities. A few studies investigating the antitumor properties of nerolidol have shown positive results in both cell culture and mouse models. In this study, we investigated the antitumor mechanism of cis-nerolidol in bladder carcinoma cell lines. The results of our experiments on two bladder carcinoma cell lines revealed that nerolidol inhibited cell proliferation and induced two distinct cell death pathways. We confirmed that cis-nerolidol induces DNA damage and ER stress. A mechanistic study identified a common cAMP, Ca2+, and MAPK axis involved in signal propagation and amplification, leading to ER stress. Inhibition of any part of this signaling cascade prevented both cell death pathways. The two cell death mechanisms can be distinguished by the involvement of caspases. The early occurring cell death pathway is characterized by membrane blebbing and cell swelling followed by membrane rupture, which can be prevented by the inhibition of caspase activation. In the late cell death pathway, which was found to be caspase-independent, cytoplasmic vacuolization and changes in cell shape were observed. cis-Nerolidol shows promising antitumor activity through an unorthodox mechanism of action that could help target resistant forms of malignancies, such as bladder cancer.
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Garcia AR, Amaral ACF, Maria ACB, Paz MM, Amorim MMB, Chaves FCM, Vermelho AB, Nico D, Rodrigues IA. Antileishmanial Screening, Cytotoxicity, and Chemical Composition of Essential Oils: A Special Focus on Piper callosum Essential Oil. Chem Biodivers 2023; 20:e202200689. [PMID: 36565272 DOI: 10.1002/cbdv.202200689] [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: 07/22/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 12/25/2022]
Abstract
Leishmania amazonensis is the etiological agent of tegumentary leishmaniasis, a disease characterized by the emergence of cutaneous and mucocutaneous ulcerated lesions that can evolve into severe destruction of skin tissue. Treatment of the disease is often accompanied by high toxicity and variable efficacy. Essential oils stand out for having diverse pharmacological properties. Here, we screened a panel of fourteen essential oils for their anti-L. amazonensis activity, cytotoxicity, and chemical profile. Lippia sidoides (LSEO) and Piper callosum (PCEO) oils displayed the best anti-promastigote and anti-amastigote activities with IC50 of 31 and 21 μg/ml, respectively. PCEO was the safest oil with a desirable selectivity index >10. In addition, PCEO showed no cytotoxicity against the VERO line and erythrocytes. PCEO-treated amastigotes displayed mitochondrial membrane depolarization and high levels of intracellular ROS. Safrole (54.72 %) was the main component of PCEO. The results described here highlight the use of essential oils to combat tegumentary leishmaniasis.
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Affiliation(s)
- Andreza R Garcia
- Programa de Pós Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Ana Claudia F Amaral
- Laboratório de Produtos Naturais e Derivados, Departamento de Produtos Naturais, Farmanguinhos, FIOCRUZ, Rio de Janeiro, 22775-903, Brazil
| | - Ana Clara B Maria
- Laboratório de Produtos Naturais e Derivados, Departamento de Produtos Naturais, Farmanguinhos, FIOCRUZ, Rio de Janeiro, 22775-903, Brazil
| | - Mariana M Paz
- Programa de Pós Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Mariana M B Amorim
- Instituto Municipal de Vigilância Sanitária, Vigilância de Zoonoses e de Inspeção Agropecuária, Rio de Janeiro, 22290-240, Brazil
| | | | - Alane B Vermelho
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Dirlei Nico
- Departamento de Microbiologia Geral, Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
| | - Igor A Rodrigues
- Programa de Pós Graduação em Ciências Farmacêuticas, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil.,Departamento de Produtos Naturais e Alimentos, Faculdade de Farmácia, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-902, Brazil
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Alonso L, Dorta ML, Alonso A. Ivermectin and curcumin cause plasma membrane rigidity in Leishmania amazonensis due to oxidative stress. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2022; 1864:183977. [PMID: 35654148 DOI: 10.1016/j.bbamem.2022.183977] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 05/18/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
Spin label electron paramagnetic resonance (EPR) spectroscopy was used to study the mechanisms of action of ivermectin and curcumin against Leishmania (L.) amazonensis promastigotes. EPR spectra showed that treatment of the parasites with both compounds results in plasma membrane rigidity due to oxidative processes. With the IC50 and EPR measurements for assays using different parasite concentrations, estimations could be made for the membrane-water partition coefficient (KM/W), and the concentration of the compound in the membrane (cm50) and in the aqueous phase (cw50), which inhibits cell growth by 50%. The KM/W values indicated that ivermectin has a greater affinity than curcumin for the parasite membrane. Therefore, the activity of ivermectin was higher for experiments with low cell concentrations, but for concentrations greater than 1.5 × 108 parasites/mL the compounds did not show significantly different results. The cm50 values indicated that the concentration of compound in the membrane leading to growth inhibition or membrane alteration is approximately 1 M for both ivermectin and curcumin. This high membrane concentration suggests that many ivermectin molecules per chlorine channel are needed to cause an increase in chlorine ion influx.
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Affiliation(s)
- Lais Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Miriam Leandro Dorta
- Instituto de Patologia Tropical e Saúde Publica, Departamento de Imunologia e Patologia Geral, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Antonio Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil.
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Alonso L, Rocha OB, de Carvalho Junior MAB, Soares CMDA, Pereira M, Alonso A. Paracoccidioides brasiliensis plasma membrane characterization by EPR spectroscopy and interactions with amphotericin B, miltefosine and nerolidol. J Biomol Struct Dyn 2022:1-11. [PMID: 35787240 DOI: 10.1080/07391102.2022.2093274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Electron paramagnetic resonance (EPR) spectroscopy of spin labels was used to characterize the interactions of amphotericin B (AmB), miltefosine (MIL) and nerolidol (NER) with the plasma membrane of Paracoccidioides brasiliensis. Spin-labeled analogs of stearic acid and steroid androstane distributed into the plasma membrane of the fungus treated with AmB, showed strong interactions with putative AmB/sterol complexes. The observed increase in the EPR parameter 2A// caused by AmB can be interpreted as a remarkable reduction in the spin label mobility and/or an increase in the local polarity. The 2A// parameter reduced gradually as the concentration of MIL and NER increased. The membrane-water partition coefficient (KM/W) of the three compounds under study was estimated based on the minimum concentration of the compounds that causes a change in EPR spectrum. The KM/W values indicated that the affinity of the compounds for the P. brasiliensis membrane follows the order: AmB > MIL > NER. The minimum inhibitory concentration (MIC) values were lower than the respective minimum concentrations of the compounds to cause a change in the EPR spectrum, being ∼3.5-fold lower for AmB, 3.9-fold for MIL and ∼1.4-fold for NER. Taken together, the EPR spectroscopy results suggest that the anti-proliferative effects of the three compounds studied are associated with alterations in cell membranes. One of the most likely consequences of these changes would be electrolyte leakage.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Lais Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Olivia Basso Rocha
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Brazil
| | | | | | - Maristela Pereira
- Laboratório de Biologia Molecular, Instituto de Ciências Biológicas, Universidade Federal de Goiás, Brazil
| | - Antonio Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Alonso L, Pimenta LKL, Kipnis A, Alonso A. Mycobacterium abscessus cell wall and plasma membrane characterization by EPR spectroscopy and effects of amphotericin B, miltefosine and nerolidol. BIOCHIMICA ET BIOPHYSICA ACTA. BIOMEMBRANES 2022; 1864:183872. [PMID: 35085568 DOI: 10.1016/j.bbamem.2022.183872] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 12/24/2021] [Accepted: 01/19/2022] [Indexed: 01/24/2023]
Abstract
Spin label electron paramagnetic resonance (EPR) spectroscopy was used to characterize the components of the Mycobacterium abscessus massiliense cell envelope and their interactions with amphotericin B (AmB), miltefosine (MIL), and nerolidol (NER). Spin labels analogous to stearic acid and phosphatidylcholine (PC) were distributed on an envelope layer with fluidity comparable to other biological membranes, probably the mycobacterial cell wall, because after treatment with AmB a highly rigid spectral component was evident in the EPR spectra. Methyl stearate analogue spin labels found a much more fluid membrane and did not detect the presence of AmB, except for at very high drug concentrations. Unlike other spin-labeled PCs, the TEMPO-PC spin probe, with the nitroxide moiety attached to the choline of the PC headgroup, also did not detect the presence of AmB. On the other hand, the steroid spin labels were not distributed across the membranes of M. abscessus and, instead, were concentrated in some other location of the cell envelope. Both MIL and NER compounds at 10 μM caused increased fluidity in the cell wall and plasma membrane. Furthermore, NER was shown to have a remarkable ability to extract lipids from the mycobacterial cell wall. The EPR results suggest that the resistance of mycobacteria to the action of AmB must be related to the fact that this drug does not reach the bacterial plasma membrane.
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Affiliation(s)
- Lais Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil.
| | - Laryssa Ketelyn Lima Pimenta
- Instituto de Patologia Tropical e Saúde Publica, Departamento de Biociências e Tecnologia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - André Kipnis
- Instituto de Patologia Tropical e Saúde Publica, Departamento de Biociências e Tecnologia, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Antonio Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil
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Ephrem E, Najjar A, Charcosset C, Greige-Gerges H. Bicelles as a carrier for bioactive compounds in beverages: application to nerolidol, an active sesquiterpene alcohol. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2022; 59:1030-1039. [PMID: 35185207 PMCID: PMC8814254 DOI: 10.1007/s13197-021-05107-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/25/2021] [Accepted: 04/13/2021] [Indexed: 11/29/2022]
Abstract
ABSTRACT Nerolidol is a natural sesquiterpene alcohol with promising but limited application in food and pharmaceutical fields due to several factors including low photostability and low aqueous solubility. Recently, several carriers loading nerolidol were prepared and tested in fresh orange juice. Lipid vesicles loading nerolidol did not exhibit satisfactory organoleptic properties in this beverage. Hence, DMPC/DHPC bicelles were prepared as a new phospholipid-based carrier for nerolidol at different molar ratios. The bicelle suspensions were characterized in terms of homogeneity, particles size, and morphology. The optimal formulation (phospholipid:nerolidol molar ratio 100:1) was selected based on transparent appearance, homogeneity, and particle size (~ 45 nm). Besides, it showed a high encapsulation efficiency of nerolidol and a high incorporation rate of phospholipids. Transmission electron microscopy analysis demonstrated the formation of bicelles. The bicelles membrane fluidity was assessed by 1,6-diphenyl-1,3,5-hexatriene fluorescence anisotropy and differential scanning calorimetry analysis. The membrane fluidity of bicelles appeared to increase in the presence of nerolidol in a concentration dependent manner. To our knowledge this is the first study dealing with the encapsulation of an essential oil component in bicelles. GRAPHIC ABSTRACT
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Affiliation(s)
- Elissa Ephrem
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Section II, Lebanese University, Jdaidet El-Matn, B.P. 90656, Beirut, Lebanon ,LAGEP UMR 5007, CNRS, Univ Lyon, Université Claude Bernard Lyon 1, 43 Boulevard du 11 novembre 1918, 69100 Villeurbanne, France
| | - Amal Najjar
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Section II, Lebanese University, Jdaidet El-Matn, B.P. 90656, Beirut, Lebanon
| | - Catherine Charcosset
- LAGEP UMR 5007, CNRS, Univ Lyon, Université Claude Bernard Lyon 1, 43 Boulevard du 11 novembre 1918, 69100 Villeurbanne, France
| | - Hélène Greige-Gerges
- Bioactive Molecules Research Laboratory, Faculty of Sciences, Section II, Lebanese University, Jdaidet El-Matn, B.P. 90656, Beirut, Lebanon
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Koko WS, Al Nasr IS, Khan TA, Schobert R, Biersack B. An Update on Natural Antileishmanial Treatment Options from Plants, Fungi and Algae. Chem Biodivers 2021; 19:e202100542. [PMID: 34822224 DOI: 10.1002/cbdv.202100542] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 11/25/2021] [Indexed: 11/10/2022]
Abstract
Efficient drugs for the treatment of leishmaniasis, which is classified as a neglected tropical disease, are sought for. This review covers potential drug candidates from natural plant, fungus and algae sources, which were described over the last six years. The identification of these natural antileishmanials often based on the knowledge of traditional medicines. Crucial insights into the activities of these natural remedies against Leishmania parasites and against infections caused by these parasites in laboratory animals or patients are provided and compared with selected former active examples published more than six years ago. In addition, immuno-modulatory natural antileishmanials and recent developments on combination therapies including natural products and approved antileishmanials are discussed. The described natural products revealed promising data warranting further efforts on the discovery and development of new antileishmanials based on patterns from nature.
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Affiliation(s)
- Waleed S Koko
- Department of Science Laboratories, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia
| | - Ibrahim S Al Nasr
- Department of Science Laboratories, College of Science and Arts, Qassim University, Ar Rass, Saudi Arabia.,Department of Biology, College of Science and Arts, Qassim University, Unaizah, Saudi Arabia
| | - Tariq A Khan
- Department of Clinical Nutrition, College of Applied Health Sciences, Qassim University, Ar Rass, Saudi Arabia
| | - Rainer Schobert
- Organic Chemistry Laboratory, University of Bayreuth, 95447, Bayreuth, Germany
| | - Bernhard Biersack
- Organic Chemistry Laboratory, University of Bayreuth, 95447, Bayreuth, Germany
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Zulhendri F, Chandrasekaran K, Kowacz M, Ravalia M, Kripal K, Fearnley J, Perera CO. Antiviral, Antibacterial, Antifungal, and Antiparasitic Properties of Propolis: A Review. Foods 2021; 10:1360. [PMID: 34208334 PMCID: PMC8231288 DOI: 10.3390/foods10061360] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/09/2021] [Accepted: 06/10/2021] [Indexed: 12/18/2022] Open
Abstract
Propolis is a complex phytocompound made from resinous and balsamic material harvested by bees from flowers, branches, pollen, and tree exudates. Humans have used propolis therapeutically for centuries. The aim of this article is to provide comprehensive review of the antiviral, antibacterial, antifungal, and antiparasitic properties of propolis. The mechanisms of action of propolis are discussed. There are two distinct impacts with regards to antimicrobial and anti-parasitic properties of propolis, on the pathogens and on the host. With regards to the pathogens, propolis acts by disrupting the ability of the pathogens to invade the host cells by forming a physical barrier and inhibiting enzymes and proteins needed for invasion into the host cells. Propolis also inhibits the replication process of the pathogens. Moreover, propolis inhibits the metabolic processes of the pathogens by disrupting cellular organelles and components responsible for energy production. With regard to the host, propolis functions as an immunomodulator. It upregulates the innate immunity and modulates the inflammatory signaling pathways. Propolis also helps maintain the host's cellular antioxidant status. More importantly, a small number of human clinical trials have demonstrated the efficacy and the safety of propolis as an adjuvant therapy for pathogenic infections.
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Affiliation(s)
| | | | - Magdalena Kowacz
- Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Tuwima 10 St., 10-748 Olsztyn, Poland; or
| | - Munir Ravalia
- The Royal London Hospital, Whitechapel Rd, Whitechapel, London E1 1FR, UK;
| | - Krishna Kripal
- Rajarajeswari Dental College & Hospital, No.14, Ramohalli Cross, Mysore Road, Kumbalgodu, Bengaluru 560074, Karnataka, India;
| | - James Fearnley
- Apiceutical Research Centre, Unit 3b Enterprise Way, Whitby, North Yorkshire YO18 7NA, UK;
| | - Conrad O. Perera
- Food Science Program, School of Chemical Sciences, University of Auckland, 23 Symonds Street, Auckland CBD, Auckland 1010, New Zealand
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12
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Pino-Otín MR, Langa E, Val J, Mainar AM, Ballestero D. Impact of citronellol on river and soil environments using non-target model organisms and natural populations. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 287:112303. [PMID: 33714735 DOI: 10.1016/j.jenvman.2021.112303] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 02/24/2021] [Accepted: 02/26/2021] [Indexed: 06/12/2023]
Abstract
Citronellol is an acyclic monoterpenoid with a wide range of pharmacological activities (antibacterial, antifungal, anti-lice, repellent, lipolytic, anti-allergic, anti-inflammatory, antispasmodic, antidiabetic, anti-cholesterol, among other) and potential to replace synthetic products. However, the impact of citronellol on the environment remains unknown. We analysed, for the first time, the environmental impact of citronellol on river and soil environments using non-target model organisms and natural populations. The acute toxicity of citronellol on the aquatic invertebrate Daphnia magna, the plant Allium cepa L and the earthworm Eisenia fetida was quantified. The effect of citronellol in a river ecosystem was analysed using river periphyton communities taxonomically characterised and a river microbial community characterised through 16 S rRNA gene sequencing. Finally, a microbial community from natural soil was used to monitor the effect of citronellol on the soil ecosystem. The results showed that E. fetida was most sensitive to citronellol (LC50 = 12.34 mg/L), followed by D. magna (LC50 = 14.11 mg/L). Citronellol affected the photosynthesis of the fluvial periphyton (LC50 = 94.10 mg/L) and was phytotoxic for A. cepa. Furthermore, citronellol modified the growth and metabolism of both fluvial (LC50 = 0.19% v/v) and edaphic (LC50 = 5.07% v/v) bacterial populations. The metabolism of the microorganisms in the soil and water exposed to citronellol decreased with respect to the control, especially their ability to metabolise carbohydrates. Our results show that citronellol has a negative impact on the environment. Although acute effects cannot be expected, it is necessary to quantify the environmental levels as well as the long-term and persistent effects of this monoterpene.
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Affiliation(s)
| | - Elisa Langa
- Universidad San Jorge, Villanueva de Gállego, 50830, Zaragoza, Spain.
| | - Jonatan Val
- Universidad San Jorge, Villanueva de Gállego, 50830, Zaragoza, Spain.
| | - Ana M Mainar
- I3A, Universidad de Zaragoza, c/ Mariano Esquillor s/n, 50018, Zaragoza, Spain.
| | - Diego Ballestero
- Universidad San Jorge, Villanueva de Gállego, 50830, Zaragoza, Spain.
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13
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Alcazar W, Alakurtti S, Padrón-Nieves M, Tuononen ML, Rodríguez N, Yli-Kauhaluoma J, Ponte-Sucre A. Leishmanicidal Activity of Betulin Derivatives in Leishmania amazonensis; Effect on Plasma and Mitochondrial Membrane Potential, and Macrophage Nitric Oxide and Superoxide Production. Microorganisms 2021; 9:320. [PMID: 33557150 PMCID: PMC7913927 DOI: 10.3390/microorganisms9020320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 01/24/2021] [Accepted: 01/29/2021] [Indexed: 11/25/2022] Open
Abstract
Herein, we evaluated in vitro the anti-leishmanial activity of betulin derivatives in Venezuelan isolates of Leishmania amazonensis, isolated from patients with therapeutic failure. METHODS We analyzed promastigote in vitro susceptibility as well as the cytotoxicity and selectivity of the evaluated compounds. Additionally, the activity of selected compounds was determined in intracellular amastigotes. Finally, to gain hints on their potential mechanism of action, the effect of the most promising compounds on plasma and mitochondrial membrane potential, and nitric oxide and superoxide production by infected macrophages was determined. RESULTS From the tested 28 compounds, those numbered 18 and 22 were chosen for additional studies. Both 18 and 22 were active (GI50 ≤ 2 µM, cytotoxic CC50 > 45 µM, SI > 20) for the reference strain LTB0016 and for patient isolates. The results suggest that 18 significantly depolarized the plasma membrane potential (p < 0.05) and the mitochondrial membrane potential (p < 0.05) when compared to untreated cells. Although neither 18 nor 22 induced nitric oxide production in infected macrophages, 18 induced superoxide production in infected macrophages. CONCLUSION Our results suggest that due to their efficacy and selectivity against intracellular parasites and the potential mechanisms underlying their leishmanicidal effect, the compounds 18 and 22 could be used as tools for designing new chemotherapies against leishmaniasis.
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Affiliation(s)
- Wilmer Alcazar
- Laboratory of Molecular Physiology, Institute of Experimental Medicine, School of Medicine Luis Razetti, Faculty of Medicine, Universidad Central de Venezuela, P.O. Box 50587, Caracas 1050, Venezuela; (W.A.); (M.P.-N.)
| | - Sami Alakurtti
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, P.O. Box 56, FI-00014 Helsinki, Finland; (S.A.); (M.L.T.)
- VTT Technical Research Centre of Finland, Biologinkuja 7, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Maritza Padrón-Nieves
- Laboratory of Molecular Physiology, Institute of Experimental Medicine, School of Medicine Luis Razetti, Faculty of Medicine, Universidad Central de Venezuela, P.O. Box 50587, Caracas 1050, Venezuela; (W.A.); (M.P.-N.)
| | - Maija Liisa Tuononen
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, P.O. Box 56, FI-00014 Helsinki, Finland; (S.A.); (M.L.T.)
- VTT Technical Research Centre of Finland, Biologinkuja 7, P.O. Box 1000, FI-02044 Espoo, Finland
| | - Noris Rodríguez
- Laboratory of Genetic Engineering, Institute of Biomedicine, Universidad Central de Venezuela, P.O. Box 4043, Caracas 1010A, Venezuela;
| | - Jari Yli-Kauhaluoma
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Viikinkaari 5 E, P.O. Box 56, FI-00014 Helsinki, Finland; (S.A.); (M.L.T.)
| | - Alicia Ponte-Sucre
- Laboratory of Molecular Physiology, Institute of Experimental Medicine, School of Medicine Luis Razetti, Faculty of Medicine, Universidad Central de Venezuela, P.O. Box 50587, Caracas 1050, Venezuela; (W.A.); (M.P.-N.)
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14
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Monzote L, Scherbakov AM, Scull R, Satyal P, Cos P, Shchekotikhin AE, Gille L, Setzer WN. Essential Oil from Melaleuca leucadendra: Antimicrobial, Antikinetoplastid, Antiproliferative and Cytotoxic Assessment. Molecules 2020; 25:E5514. [PMID: 33255562 PMCID: PMC7728144 DOI: 10.3390/molecules25235514] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 11/19/2022] Open
Abstract
Essential oils (EOs) are known for their use in cosmetics, food industries, and traditional medicine. This study presents the chemical composition and therapeutic properties against kinetoplastid and eukaryotic cells of the EO from Melaleucaleucadendra (L.) L. (Myrtaceae). Forty-five compounds were identified in the oil by GC-MS, containing a major component the 1,8-cineole (61%). The EO inhibits the growth of Leishmania amazonensis and Trypanosoma brucei at IC50 values <10 μg/mL. However, 1,8 cineole was not the main compound responsible for the activity. Against malignant (22Rv1, MCF-7, EFO-21, including resistant sublines MCF-7/Rap and MCF-7/4OHTAMO) and non-malignant (MCF-10A, J774A.1 and peritoneal macrophage) cells, IC50 values from 55 to 98 μg/mL and from 94 to 144 μg/mL were obtained, respectively. However, no activity was observed on Staphylococcus aureus, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa, Aspergillus niger, Candida parapsilosis, Microsporum canis, or Trypanosoma cruzi. The EO was able to control the lesion size and parasite burden in the model of cutaneous leishmaniasis in BALB/c mice caused by L. amazonensis compared to untreated animals (p < 0.05) and similar with those treated with Glucantime® (p > 0.05). This work constitutes the first evidence of antiproliferative potentialities of EO from M. leucadendra growing in Cuba and could promote further preclinical investigations to confirm the medical value of this plant, in particular for leishmaniasis treatment.
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Affiliation(s)
- Lianet Monzote
- Parasitology Department, Institute of Tropical Medicine “Pedro Kouri”, 10400 Havana, Cuba
| | - Alexander M. Scherbakov
- Department of Experimental Tumor Biology, Blokhin N.N. National Medical Research Center of Oncology, 24 Kashirskoye sh., Moscow 115522, Russia;
| | - Ramón Scull
- Department of Pharmacy, Institute of Pharmacy and Food, Havana University, La Coronela, La Lisa, 13600 Havana, Cuba;
| | - Prabodh Satyal
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA;
| | - Paul Cos
- Laboratory for Microbiology, Parasitology and Hygiene (LMPH), Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, 2610 Antwerp, Belgium;
| | - Andrey E. Shchekotikhin
- Laboratory of Chemical Transformations of Antibiotics, Gause Institute of New Antibiotics, 11 B. Pirogovskaya St., Moscow 119021, Russia;
| | - Lars Gille
- Department of Biomedical Sciences, Institute of Pharmacology and Toxicology, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria;
| | - William N. Setzer
- Aromatic Plant Research Center, 230 N 1200 E, Suite 100, Lehi, UT 84043, USA;
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA
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15
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Alonso L, Mendanha SA, Dorta ML, Alonso A. Analysis of the Interactions of Amphotericin B with the Leishmania Plasma Membrane Using EPR Spectroscopy. J Phys Chem B 2020; 124:10157-10165. [DOI: 10.1021/acs.jpcb.0c07721] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Lais Alonso
- Instituto Federal Goiano, Trindade 76300-000, Goiás, Brazil
- Instituto de Física, Universidade Federal de Goiás, Goiânia 74690-900, Goiás, Brazil
| | | | - Miriam Leandro Dorta
- Instituto de Patologia Tropical e Saúde Publica, Departamento de Imunologia e Patologia Geral, Universidade Federal de Goiás, Goiânia 74690-900, Goiás, Brazil
| | - Antonio Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia 74690-900, Goiás, Brazil
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16
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Pereira KLG, Vasconcelos NBR, Braz JVC, InÁcio JDF, Estevam CS, Correa CB, Fernandes RPM, Almeida-Amaral EE, Scher R. Ethanolic extract of Croton blanchetianus Ball induces mitochondrial defects in Leishmania amazonensis promastigotes. AN ACAD BRAS CIENC 2020; 92:e20180968. [PMID: 33146273 DOI: 10.1590/0001-3765202020180968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 01/06/2019] [Indexed: 01/18/2023] Open
Abstract
Leishmaniasis is a neglected disease caused by Leishmania. Chemotherapy remains the mainstay for leishmaniasis control; however, available drugs fail to provide a parasitological cure, and are associated with high toxicity. Natural products are promising leads for the development of novel chemotherapeutics against leishmaniasis. This work investigated the leishmanicidal properties of ethanolic extract of Croton blanchetianus (EECb) on Leishmania infantum and Leishmania amazonensis, and found that EECb, rich in terpenic compounds, was active against promastigote and amastigote forms of both Leishmania species. Leishmania infantum promastigotes and amastigotes presented IC50 values of 208.6 and 8.8 μg/mL, respectively, whereas Leishmania amazonensis promastigotes and amastigotes presented IC50 values of 73.6 and 3.1 μg/mL, respectively. Promastigotes exposed to EECb (100 µg/mL) had their body cellular volume reduced and altered to a round shape, and the flagellum was duplicated, suggesting that EECb may interfere with the process of cytokinesis, which could be the cause of the decline in the parasite multiplication rate. Regarding possible EECb targets, a marked depolarization of the mitochondrial membrane potential was observed. No cytotoxic effects of EECb were observed in murine macrophages at concentrations below 60 µg/mL, and the CC50 obtained was 83.8 µg/mL. Thus, the present results indicated that EECb had effective and selective effects against Leishmania infantum and Leishmania amazonensis, and that these effects appeared to be mediated by mitochondrial dysfunction.
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Affiliation(s)
- Katily L G Pereira
- Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, 49000-000 São Cristóvão, SE, Brazil
| | - Nancy B R Vasconcelos
- Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, 49000-000 São Cristóvão, SE, Brazil
| | - Juliana V C Braz
- Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, 49000-000 São Cristóvão, SE, Brazil
| | - Job D F InÁcio
- Instituto Oswaldo Cruz/FIOCRUZ, Av. Brasil, 4365, Manguinhos, 21040-900 Rio de Janeiro, Brazil
| | - Charles S Estevam
- Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, 49000-000 São Cristóvão, SE, Brazil
| | - Cristiane B Correa
- Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, 49000-000 São Cristóvão, SE, Brazil
| | - Roberta P M Fernandes
- Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, 49000-000 São Cristóvão, SE, Brazil
| | - Elmo E Almeida-Amaral
- Instituto Oswaldo Cruz/FIOCRUZ, Av. Brasil, 4365, Manguinhos, 21040-900 Rio de Janeiro, Brazil
| | - Ricardo Scher
- Universidade Federal de Sergipe, Av. Marechal Rondon, s/n, Rosa Elze, 49000-000 São Cristóvão, SE, Brazil
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17
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Lam NS, Long X, Su XZ, Lu F. Melaleuca alternifolia (tea tree) oil and its monoterpene constituents in treating protozoan and helminthic infections. Biomed Pharmacother 2020; 130:110624. [DOI: 10.1016/j.biopha.2020.110624] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 08/03/2020] [Accepted: 08/05/2020] [Indexed: 02/08/2023] Open
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18
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Santana RC, Rosa ADS, Mateus MHDS, Soares DC, Atella G, Guimarães AC, Siani AC, Ramos MFS, Saraiva EM, Pinto-da-Silva LH. In vitro leishmanicidal activity of monoterpenes present in two species of Protium (Burseraceae) on Leishmania amazonensis. JOURNAL OF ETHNOPHARMACOLOGY 2020; 259:112981. [PMID: 32442591 DOI: 10.1016/j.jep.2020.112981] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/07/2020] [Accepted: 05/14/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Leishmaniasis is a neglected disease that affects millions of people around the world. Parasite resistance and the toxicity to the current treatments lead to the search for new effective molecules. Plants are widely used in traditional and indigenous medicine to treat different diseases. The oleoresin of the genus Protium, which is rich in volatile compounds active against different microorganisms, is among these plants. AIM The aim of this study was to evaluate the leishmanicidal potential of Protium altsonii (PaEO) and P. hebetatum (PhEO) (Burseraceae) oleoresins, as well as of three representative monoterpenes in their constitution: α-pinene, p-cymene and 1,8-cineole. MATERIALS AND METHODS Protium altsonii (PaEO) and P. hebetatum (PhEO) oleoresins and three of their constituents were tested in vitro on promastigotes and amastigotes-infected macrophages in different concentrations. Their toxicity for macrophages was analyzed by XTT assay and phagocytic ability. It was evaluated the ability of the compounds to induce NO production on treated-macrophages using Griess reaction and the effect of them in lipid profile on treated-parasite through Thin Layer Chromatography. RESULTS Our data showed that both essential oils have toxic effect on promastigotes and amastigotes of L. amazonensis in vitro in a dose-dependent manner. PaEO IC50 were 14.8 μg/mL and 7.8 μg/mL and PhEO IC50s were 0.46 μg/mL and 30.5 μg/m for promastigotes and amastigotes, respectively. Toxicity to macrophages was not observed at 50 μg/mL with both EOs. The compounds 1,8- cineole, α-pinene, and p-cymene inhibited amastigotes survival in a dose-dependent manner with IC50s of 48.4 μg/mL, 37 μg/mL, 46 μg/mL, respectively. Macrophage viability was around 90% even at 200 μg/mL and the phagocytic capacity was not altered in the treated-macrophages to up 50 μg/mL. The compounds were not able to modulate the nitric oxide production either at rest or LPS-activated macrophages. In addition, treated promastigote revealed an important change in their lipid profile after 48 h at 50 μg/mL in the presence of the compounds. CONCLUSIONS The results indicate that oleoresins of Protium genus are potent against Leishmania and α-pinene, p-cymene and 1,8-cineole have anti-Leishmania properties that could be explored in synergistic assays in order to develop new drug candidates.
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Affiliation(s)
- Raissa Couto Santana
- Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | - Alice Dos Santos Rosa
- Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil
| | | | - Deivid Costa Soares
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Brazil
| | - Georgia Atella
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Brazil
| | | | | | - Monica Freiman S Ramos
- Faculdade de Farmácia, Departamento de Medicamentos, Universidade Federal do Rio de Janeiro, Brazil
| | - Elvira Maria Saraiva
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, Brazil
| | - Lucia H Pinto-da-Silva
- Instituto de Veterinária, Universidade Federal Rural do Rio de Janeiro, Seropédica, RJ, Brazil.
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19
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Membrane dynamics in Leishmania amazonensis and antileishmanial activities of β-carboline derivatives. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2020; 1863:183473. [PMID: 32937102 DOI: 10.1016/j.bbamem.2020.183473] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 01/18/2023]
Abstract
Two β-carboline compounds, 8i and 6d, demonstrated in vitro antileishmanial activity against Leishmania (L.) amazonensis promastigotes similar to that of miltefosine (MIL). Estimates of the membrane-water partition coefficient (KM/W) and the compound concentrations in the membrane (cm50) and aqueous phase (cw50) for half maximal inhibitory concentration were made. Whereas these biophysical parameters for 6d were not significantly different from those reported for MIL, 8i showed lower affinity for the parasite membrane (lower KM/W) and a lower concentration of the compound in the membrane required to inhibit the growth of the parasite (lower cm50). A 2-hour treatment of Leishmania promastigotes with the compounds 8i and 6d caused membrane rigidity in a concentration-dependent manner, as demonstrated by the electron paramagnetic resonance (EPR) technique and spin label method. This increased rigidity of the membrane was interpreted to be associated with the occurrence of cross-linking of oxidized cytoplasmic proteins to the parasite membrane skeleton. Importantly, the two β-carboline-oxazoline derivatives showed low hemolytic action, both in experiments with isolated red blood cells or with whole blood, denoting their great Leishmania/erythrocyte selectivity index. Using electron microscopy, changes in the membrane of both the amastigote and promastigote form of the parasite were confirmed, and it was demonstrated that compounds 8i and 6d decreased the number of amastigotes in infected murine macrophages. Furthermore, 8i and 6d were more toxic to the protozoa than to J774A.1 macrophages, with treated promastigotes exhibiting a decrease in cell volume, mitochondrial membrane potential depolarization, accumulation of lipid bodies, increased ROS production and changes in the cell cycle.
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20
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Antileishmanial activity of the chalcone derivative LQFM064 associated with reduced fluidity in the parasite membrane as assessed by EPR spectroscopy. Eur J Pharm Sci 2020; 151:105407. [DOI: 10.1016/j.ejps.2020.105407] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/18/2020] [Accepted: 05/30/2020] [Indexed: 12/11/2022]
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21
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De Ieso ML, Pei JV, Nourmohammadi S, Smith E, Chow PH, Kourghi M, Hardingham JE, Yool AJ. Combined pharmacological administration of AQP1 ion channel blocker AqB011 and water channel blocker Bacopaside II amplifies inhibition of colon cancer cell migration. Sci Rep 2019; 9:12635. [PMID: 31477744 PMCID: PMC6718670 DOI: 10.1038/s41598-019-49045-9] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 08/13/2019] [Indexed: 12/14/2022] Open
Abstract
Aquaporin-1 (AQP1) has been proposed as a dual water and cation channel that when upregulated in cancers enhances cell migration rates; however, the mechanism remains unknown. Previous work identified AqB011 as an inhibitor of the gated human AQP1 cation conductance, and bacopaside II as a blocker of AQP1 water pores. In two colorectal adenocarcinoma cell lines, high levels of AQP1 transcript were confirmed in HT29, and low levels in SW480 cells, by quantitative PCR (polymerase chain reaction). Comparable differences in membrane AQP1 protein levels were demonstrated by immunofluorescence imaging. Migration rates were quantified using circular wound closure assays and live-cell tracking. AqB011 and bacopaside II, applied in combination, produced greater inhibitory effects on cell migration than did either agent alone. The high efficacy of AqB011 alone and in combination with bacopaside II in slowing HT29 cell motility correlated with abundant membrane localization of AQP1 protein. In SW480, neither agent alone was effective in blocking cell motility; however, combined application did cause inhibition of motility, consistent with low levels of membrane AQP1 expression. Bacopaside alone or combined with AqB011 also significantly impaired lamellipodial formation in both cell lines. Knockdown of AQP1 with siRNA (confirmed by quantitative PCR) reduced the effectiveness of the combined inhibitors, confirming AQP1 as a target of action. Invasiveness measured using transwell filters layered with extracellular matrix in both cell lines was inhibited by AqB011, with a greater potency in HT29 than SW480. A side effect of bacopaside II at high doses was a potentiation of invasiveness, that was reversed by AqB011. Results here are the first to demonstrate that combined block of the AQP1 ion channel and water pores is more potent in impairing motility across diverse classes of colon cancer cells than single agents alone.
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Affiliation(s)
- Michael L De Ieso
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Jinxin V Pei
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Saeed Nourmohammadi
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Eric Smith
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
- Oncology Department, The Basil Hetzel Institute, The Queen Elizabeth Hospital, Woodville, SA, 5011, Australia
| | - Pak Hin Chow
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Mohamad Kourghi
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
| | - Jennifer E Hardingham
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia
- Oncology Department, The Basil Hetzel Institute, The Queen Elizabeth Hospital, Woodville, SA, 5011, Australia
| | - Andrea J Yool
- Adelaide Medical School, University of Adelaide, Adelaide, SA, 5005, Australia.
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22
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Alonso L, Cardoso ÉJS, Mendanha SA, Alonso A. Interactions of miltefosine with erythrocyte membrane proteins compared to those of ionic surfactants. Colloids Surf B Biointerfaces 2019; 180:23-30. [DOI: 10.1016/j.colsurfb.2019.04.040] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 04/01/2019] [Accepted: 04/16/2019] [Indexed: 12/11/2022]
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23
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Styrczewska M, Zuk M, Boba A, Zalewski I, Kulma A. Use of Natural Components Derived from Oil Seed Plants for Treatment of Inflammatory Skin Diseases. Curr Pharm Des 2019; 25:2241-2263. [PMID: 31333096 DOI: 10.2174/1381612825666190716111700] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 07/01/2019] [Indexed: 12/28/2022]
Abstract
The incidence of inflammatory skin diseases is increasing, so the search for relevant therapeutics is of major concern. Plants are rich in phytochemicals which can alleviate many symptoms. In this review, we concentrate on compounds found in the seeds of widely cultivated plants, regularly used for oil production. The oils from these plants are often used to alleviate the symptoms of inflammatory diseases through synergetic action of unsaturated fatty acids and other phytochemicals most commonly derived from the terpenoid pathway. The knowledge of the chemical composition of oil seeds and the understanding of the mechanisms of action of single components should allow for a more tailored approach for the treatment for many diseases. In many cases, these seeds could serve as an efficient material for the isolation of pure phytochemicals. Here we present the content of phytochemicals, assumed to be responsible for healing properties of plant oils in a widely cultivated oil seed plants and review the proposed mechanism of action for fatty acids, selected mono-, sesqui-, di- and triterpenes, carotenoids, tocopherol and polyphenols.
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Affiliation(s)
- Monika Styrczewska
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Wroclaw, Poland
| | - Magdalena Zuk
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Wroclaw, Poland
| | - Aleksandra Boba
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Wroclaw, Poland
| | - Iwan Zalewski
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Wroclaw, Poland
| | - Anna Kulma
- Department of Genetic Biochemistry, Faculty of Biotechnology, Wroclaw University, Wroclaw, Poland
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Alonso L, Fernandes KS, Mendanha SA, Gonçalves PJ, Gomes RS, Dorta ML, Alonso A. In vitro antileishmanial and cytotoxic activities of nerolidol are associated with changes in plasma membrane dynamics. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:1049-1056. [DOI: 10.1016/j.bbamem.2019.03.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 03/13/2019] [Accepted: 03/14/2019] [Indexed: 01/18/2023]
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Ephrem E, Najjar A, Charcosset C, Greige-Gerges H. Selection of nerolidol among a series of terpenic and phenolic compounds for its potent activity against Lactobacillus fermentum ATCC 9338. Process Biochem 2019. [DOI: 10.1016/j.procbio.2019.02.015] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Active Essential Oils and Their Components in Use against Neglected Diseases and Arboviruses. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6587150. [PMID: 30881596 PMCID: PMC6387720 DOI: 10.1155/2019/6587150] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 11/06/2018] [Indexed: 12/21/2022]
Abstract
The term neglected diseases refers to a group of infections caused by various classes of pathogens, including protozoa, viruses, bacteria, and helminths, most often affecting impoverished populations without adequate sanitation living in close contact with infectious vectors and domestic animals. The fact that these diseases were historically not considered priorities for pharmaceutical companies made the available treatments options obsolete, precarious, outdated, and in some cases nonexistent. The use of plants for medicinal, religious, and cosmetic purposes has a history dating back to the emergence of humanity. One of the principal fractions of chemical substances found in plants are essential oils (EOs). EOs consist of a mixture of volatile and hydrophobic secondary metabolites with marked odors, composed primarily of terpenes and phenylpropanoids. They have great commercial value and were widely used in traditional medicine, by phytotherapy practitioners, and in public health services for the treatment of several conditions, including neglected diseases. In addition to the recognized cytoprotective and antioxidative activities of many of these compounds, larvicidal, insecticidal, and antiparasitic activities have been associated with the induction of oxidative stress in parasites, increasing levels of nitric oxide in the infected host, reducing parasite resistance to reactive oxygen species, and increasing lipid peroxidation, ultimately leading to serious damage to cell membranes. The hydrophobicity of these compounds also allows them to cross the membranes of parasites as well as the blood-brain barrier, collaborating in combat at the second stage of several of these infections. Based on these considerations, the aim of this review was to present an update of the potential of EOs, their fractions, and their chemical constituents, against some neglected diseases, including American and African trypanosomiasis, leishmaniasis, and arboviruses, specially dengue.
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Mendanha SA, dos Anjos JLV, Maione-Silva L, Silva HCB, Lima EM, Alonso A. An EPR spin probe study of the interactions between PC liposomes and stratum corneum membranes. Int J Pharm 2018; 545:93-100. [DOI: 10.1016/j.ijpharm.2018.04.057] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 04/23/2018] [Accepted: 04/25/2018] [Indexed: 10/17/2022]
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Das S, Halder A, Mandal S, Mazumder MAJ, Bera T, Mukherjee A, Roy P. Andrographolide engineered gold nanoparticle to overcome drug resistant visceral leishmaniasis. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:751-762. [PMID: 29421940 DOI: 10.1080/21691401.2018.1435549] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Visceral leishmaniasis (VL) is World Health Organization designated most serious leishmaniasis with an annual mortality rate of 50,000. Even after country specific eradication programs, the disease continues to multiply with added complexities like resistance development, drug hypersensitivity and associated infections. Newer therapeutic interventions are urgently warranted to control the spread. Present study aims to arrive at terpenoid andrographolide engineered gold nanoparticle (AGAunps) facile synthesis and its efficacy evaluations against wild and drug resistant VL strains for the first time. Molecular bio-organic conjugation of AGAunp was confirmed in FT-IR and EDAX studies. Nano-gold plasmon response was recorded at 543 nm and the average size in TEM was 14 nm. SAED pattern and XRD observations proved fcc crystalline structure of nano-gold. AGAunp recorded spherical geometry in AFM and TEM. PDI value of 0.137 revealed the monodisperse nature of the nano-scale population. AGAunp exhibited strong antileishmanicidal effect both against wild type (IC50 19 ± 1.7 µM) and sodium stibogluconate (IC50 55 ± 7.3 µM)/paromomycin (IC50 41 ± 6 µM) resistant strains. Complete macrophage uptake AGAunp's occured within two hours exposure. AGAunp macrophage cytotoxicity was significantly lower as compared to Amphotericin-B. Low toxic Andrographolide engineered gold nanoparticle emerged as promising alternatives in the control of wild and drug resistant VL.
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Affiliation(s)
- Suvadra Das
- a Department of Chemical Technology , University of Calcutta , Kolkata , India
| | - Asim Halder
- a Department of Chemical Technology , University of Calcutta , Kolkata , India
| | - Saptarshi Mandal
- a Department of Chemical Technology , University of Calcutta , Kolkata , India
| | - Mohammad Abu Jafar Mazumder
- b Department of Chemistry, King Fahd University of Petroleum and Minerals , Dhahran , Kingdom of Saudi Arabia
| | - Tanmoy Bera
- c Department of Pharmaceutical Technology , Jadavpur University , Kolkata , India
| | - Arup Mukherjee
- d Department of Pharmaceutical Technology , Adamas University , Kolkata , India
| | - Partha Roy
- d Department of Pharmaceutical Technology , Adamas University , Kolkata , India
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Thein vitroantileishmanial activity of essential oil fromAloysia gratissimaand guaiol, its major sesquiterpene againstLeishmania amazonensis. Parasitology 2018; 145:1219-1227. [DOI: 10.1017/s0031182017002335] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AbstractLeishmaniases is a tropical disease caused by protozoa of the genusLeishmaniafor which the current treatment is expensive, besides increasing reports of parasite resistance. This study investigated the anti-Leishmania amazonensisactivity of the essential oil fromAloysia gratissima(AgEO) and guaiol, the major sesquiterpene constituent in the oil. Our results showed that AgEO killed promastigotes and intracellular amastigotes at an IC50of 25 and 0·16µg mL−1, respectively, while guaiol killed amastigotes at an IC50of 0·01µg mL−1. Both AgEO and guaiol were safe for macrophages up to 100µg mL−1, as evaluated by the dehydrogenase activity, membrane integrity and phagocytic capacity. AgEO and guaiol did not induce nitrite oxide (NO) in resting macrophages and inhibited the production of NO in lipopolysaccharide-stimulated macrophages. The ultrastructural analysis suggested that AgEO and guaiol act directly on parasites, affecting promastigotes kinetoplast, mitochondrial matrix and plasma membrane. Together, these results pointed out that AgEO and guaiol could be promising candidates to develop anti-Leishmaniadrugs.
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Bosquiroli LSS, dos Santos Ferreira AC, Farias KS, da Costa EC, Matos MDFC, Kadri MCT, Rizk YS, Alves FM, Perdomo RT, Carollo CA, Pinto de Arruda CC. In Vitro antileishmania activity of sesquiterpene-rich essential oils from Nectandra species. PHARMACEUTICAL BIOLOGY 2017; 55:2285-2291. [PMID: 29185382 PMCID: PMC6130651 DOI: 10.1080/13880209.2017.1407803] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/31/2017] [Accepted: 11/17/2017] [Indexed: 06/07/2023]
Abstract
CONTEXT New antileishmanias are needed because of toxicity, high cost and resistance problems associated with available drugs. Nectandra (Lauraceae) produces several classes of compounds but its essential oil has not previously been reported to have antileishmania activity. OBJECTIVE We evaluated the cytotoxicity and antileishmania activity of essential oils from Nectandra amazonum Nees, N. gardneri Meisn., N. hihua (Ruiz & Pav.) Rohwer and N. megapotamica (Spreng.) Mez. MATERIALS AND METHODS Nectandra oils were extracted from stem bark/leaves by hydrodistillation and compounds were identified by GC-MS. Oils were tested against Leishmania infantum and L. amazonensis intracellular amastigotes and nitric oxide production was evaluated. Cytotoxicity was achieved on NIH/3T3 and J774.A1 cells for the selectivity index (SI). RESULTS AND DISCUSSION Nectandra gardneri was active against L. infantum and L. amazonensis (IC50 = 2.7 ± 1.3/2.1 ± 1.06 μg/mL) and contained 85.4% sesquiterpenes, of which 58.2% was intermediol. Besides low cytotoxicity (SI >11.3), N. gardneri induced a significant increase in NO production by L. infantum-infected macrophages. Nectandra hihua had the best activity on L. infantum amastigotes (IC50 = 0.2 ± 1.1 μg/mL). This oil was 89.0% sesquiterpenes, with 28.1% bicyclogermacrene. The two specimens of N. megapotamica had different activities on amastigotes. The one richer in sesquiterpenes (49.9%) was active against both species (IC50 = 12.5 ± 1.4/21.3 ± 1.2) and had phenylpropanoid E-asarone as the main compound (42.4%). Nectandra amazonum showed moderate activity on both the species (IC50 = 31.9 ± 2.0/22.1 ± 1.3 μg/mL) and low selectivity (0.9 < SI >2.6), probably due to the major presence of β-caryophyllene (28.5%). CONCLUSIONS Our data identify compounds that can now be isolated and used for the development of new antileishmanias.
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Affiliation(s)
- Lauriane Serpa Silva Bosquiroli
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Ana Caroline dos Santos Ferreira
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Katyuce Souza Farias
- Laboratório de Produtos Naturais e Espectrometria de Massas – LaPNEM, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Eduarda Carneiro da Costa
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Maria de Fátima Cepa Matos
- Laboratório de Biologia Molecular e Culturas Celulares, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Mônica Cristina Toffoli Kadri
- Laboratório de Biofisiofarmacologia, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Yasmin Silva Rizk
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Flávio Macedo Alves
- Herbário CG-MS, CCBS, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Renata Trentin Perdomo
- Laboratório de Biologia Molecular e Culturas Celulares, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Carlos Alexandre Carollo
- Laboratório de Produtos Naturais e Espectrometria de Massas – LaPNEM, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
| | - Carla Cardozo Pinto de Arruda
- Laboratório de Parasitologia Humana, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil
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Mendanha SA, Marquezin CA, Ito AS, Alonso A. Effects of nerolidol and limonene on stratum corneum membranes: A probe EPR and fluorescence spectroscopy study. Int J Pharm 2017; 532:547-554. [DOI: 10.1016/j.ijpharm.2017.09.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 09/11/2017] [Accepted: 09/16/2017] [Indexed: 02/01/2023]
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Silva MP, de Oliveira RN, Mengarda AC, Roquini DB, Allegretti SM, Salvadori MC, Teixeira FS, de Sousa DP, Pinto PL, da Silva Filho AA, de Moraes J. Antiparasitic activity of nerolidol in a mouse model of schistosomiasis. Int J Antimicrob Agents 2017; 50:467-472. [DOI: 10.1016/j.ijantimicag.2017.06.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 06/16/2017] [Accepted: 06/17/2017] [Indexed: 01/08/2023]
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Russo EB, Marcu J. Cannabis Pharmacology: The Usual Suspects and a Few Promising Leads. ADVANCES IN PHARMACOLOGY 2017; 80:67-134. [PMID: 28826544 DOI: 10.1016/bs.apha.2017.03.004] [Citation(s) in RCA: 176] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The golden age of cannabis pharmacology began in the 1960s as Raphael Mechoulam and his colleagues in Israel isolated and synthesized cannabidiol, tetrahydrocannabinol, and other phytocannabinoids. Initially, THC garnered most research interest with sporadic attention to cannabidiol, which has only rekindled in the last 15 years through a demonstration of its remarkably versatile pharmacology and synergy with THC. Gradually a cognizance of the potential of other phytocannabinoids has developed. Contemporaneous assessment of cannabis pharmacology must be even far more inclusive. Medical and recreational consumers alike have long believed in unique attributes of certain cannabis chemovars despite their similarity in cannabinoid profiles. This has focused additional research on the pharmacological contributions of mono- and sesquiterpenoids to the effects of cannabis flower preparations. Investigation reveals these aromatic compounds to contribute modulatory and therapeutic roles in the cannabis entourage far beyond expectations considering their modest concentrations in the plant. Synergistic relationships of the terpenoids to cannabinoids will be highlighted and include many complementary roles to boost therapeutic efficacy in treatment of pain, psychiatric disorders, cancer, and numerous other areas. Additional parts of the cannabis plant provide a wide and distinct variety of other compounds of pharmacological interest, including the triterpenoid friedelin from the roots, canniprene from the fan leaves, cannabisin from seed coats, and cannflavin A from seed sprouts. This chapter will explore the unique attributes of these agents and demonstrate how cannabis may yet fulfil its potential as Mechoulam's professed "pharmacological treasure trove."
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Affiliation(s)
| | - Jahan Marcu
- Americans for Safe Access, Patient Focused Certification, Washington, DC, United States
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Leishmanicidal Activity and Structure-Activity Relationships of Essential Oil Constituents. Molecules 2017; 22:molecules22050815. [PMID: 28509873 PMCID: PMC6154737 DOI: 10.3390/molecules22050815] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 05/09/2017] [Accepted: 05/11/2017] [Indexed: 12/04/2022] Open
Abstract
Several constituents of essential oils have been shown to be active against pathogens such as bacteria, fungi, and protozoa. This study demonstrated the in vitro action of ten compounds present in essential oils against Leishmania amazonensis promastigotes. With the exception of p-cymene, all evaluated compounds presented leishmanicidal activity, exhibiting IC50 between 25.4 and 568.1 μg mL−1. Compounds with the best leishmanicidal activity presented a phenolic moiety (IC50 between 25.4 and 82.9 μg mL−1). Alicyclic alcohols ((−)-menthol and isoborneol) and ketones ((−)-carvone) promoted similar activity against the parasite (IC50 between 190.2 and 198.9 μg mL−1). Most of the compounds showed low cytotoxicity in L929 fibroblasts. Analysis of the structure-activity relationship of these compounds showed the importance of the phenolic structure for the biological action against the promastigote forms of the parasite.
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Li Y, Chang J, Cui Y, Zhao R, Ding Y, Hou Y, Zhou Z, Ji HL, Nie H. Novel mechanisms for crotonaldehyde-induced lung edema. Oncotarget 2017; 8:83509-83522. [PMID: 29137360 PMCID: PMC5663532 DOI: 10.18632/oncotarget.17840] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Accepted: 04/25/2017] [Indexed: 12/13/2022] Open
Abstract
Background Crotonaldehyde is a highly noxious α,β-unsaturated aldehyde in cigarette smoke that causes edematous acute lung injury. Objective To understand how crotonaldehyde impairs lung function, we examined its effects on human epithelial sodium channels (ENaC), which are major contributors to alveolar fluid clearance. Methods We studied alveolar fluid clearance in C57 mice and ENaC activity was examined in H441 cells. Expression of α- and γ-ENaC was measured at protein and mRNA levels by western blot and real-time PCR, respectively. Intracellular ROS levels were detected by the dichlorofluorescein assay. Heterologous αβγ-ENaC activity was observed in an oocyte model. Results Our results showed that crotonaldehyde reduced transalveolar fluid clearance in mice. Furthermore, ENaC activity in H441 cells was inhibited by crotonaldehyde dose-dependently. Expression of α- and γ-subunits of ENaC was decreased at the protein and mRNA level in H441 cells exposed to crotonaldehyde, which was probably mediated by the increase in phosphorylated extracellular signal-regulated protein kinases 1 and 2. ROS levels increased time-dependently in cells exposed to crotonaldehyde. Heterologous αβγ-ENaC activity was rapidly eliminated by crotonaldehyde. Conclusion Our findings suggest that crotonaldehyde causes edematous acute lung injury by eliminating ENaC activity at least partly via facilitating the phosphorylation of extracellular signal-regulated protein kinases 1 and 2 signal molecules. Long-term exposure may decrease the expression of ENaC subunits and damage the cell membrane integrity, as well as increase the levels of cellular ROS products.
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Affiliation(s)
- Yue Li
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang 110122, Liaoning, China
| | - Jianjun Chang
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang 110122, Liaoning, China
| | - Yong Cui
- Department of Anesthesiology, First Affiliated Hospital of China Medical University, Shenyang 110001, Liaoning, China
| | - Runzhen Zhao
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708, USA
| | - Yan Ding
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang 110122, Liaoning, China
| | - Yapeng Hou
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang 110122, Liaoning, China
| | - Zhiyu Zhou
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang 110122, Liaoning, China
| | - Hong-Long Ji
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas 75708, USA.,Texas Lung Injury Institute, University of Texas Health Northeast, Tyler, Texas 75708, USA
| | - Hongguang Nie
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang 110122, Liaoning, China
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Nerolidol, the main constituent of Piper aduncum essential oil, has anti-Leishmania braziliensis activity. Parasitology 2017; 144:1179-1190. [PMID: 28482935 DOI: 10.1017/s0031182017000452] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Leishmania (Viannia) braziliensis is a protozoan that causes mucocutaneous leishmaniasis, which is an infectious disease that affects more than 12 million people worldwide. The available treatment is limited, has side-effects or is inefficient. In a search for alternative compounds of natural origin, we tested the microbicidal activity of Piper aduncum essential oil (PaEO) on this parasite. Our data showed that PaEO had an inhibitory effect on the growth of L. braziliensis promastigotes with an IC50/24 h=77·9 µg mL-1. The main constituent (nerolidol: 25·22%) presented a similar inhibitory effect (IC50/24 h = 74·3 µg mL-1). Ultrastructural observation of nerolidol-treated parasites by scanning and transmission electron microscopies revealed cell shrinkage and morphological alterations in the mitochondrion, nuclear chromatin and flagellar pocket. Flow cytometry analysis showed a reduction in the cell size, loss of mitochondrial membrane potential, phosphatidylserine exposure and DNA degradation, which when associated with the morphological changes indicated that nerolidol induced incidental cell death in the L. braziliensis promastigotes. The results presented here indicate that nerolidol derivatives are promising compounds for further evaluation against Leishmania parasites.
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Fernandes KS, de Souza PEN, Dorta ML, Alonso A. The cytotoxic activity of miltefosine against Leishmania and macrophages is associated with dynamic changes in plasma membrane proteins. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2017; 1859:1-9. [DOI: 10.1016/j.bbamem.2016.10.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 09/16/2016] [Accepted: 10/17/2016] [Indexed: 12/23/2022]
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Jagalski V, Barker R, Topgaard D, Günther-Pomorski T, Hamberger B, Cárdenas M. Biophysical study of resin acid effects on phospholipid membrane structure and properties. BIOCHIMICA ET BIOPHYSICA ACTA 2016; 1858:2827-2838. [PMID: 27544924 DOI: 10.1016/j.bbamem.2016.08.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 08/12/2016] [Accepted: 08/15/2016] [Indexed: 10/21/2022]
Abstract
Hydrophobic resin acids (RAs) are synthesized by conifer trees as part of their defense mechanisms. One of the functions of RAs in plant defense is suggested to be the perturbation of the cellular membrane. However, there is a vast diversity of chemical structures within this class of molecules, and there are no clear correlations to the molecular mechanisms behind the RA's toxicity. In this study we unravel the molecular interactions of the three closely related RAs dehydroabietic acid, neoabietic acid, and the synthetic analogue dichlorodehydroabietic acid with dipalmitoylphosphatidylcholine (DPPC) model membranes and the polar lipid extract of soybeans. The complementarity of the biophysical techniques used (NMR, DLS, NR, DSC, Cryo-TEM) allowed correlating changes at the vesicle level with changes at the molecular level and the co-localization of RAs within DPPC monolayer. Effects on DPPC membranes are correlated with the physical chemical properties of the RA and their toxicity.
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Affiliation(s)
- Vivien Jagalski
- Nano Science Center and Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
| | - Robert Barker
- Institute Laue Langevin, 71 avenue de Matyrs, CS, 20156, 38042 Grenoble Cedex 9, France
| | - Daniel Topgaard
- Division of Physical Chemistry, Department of Chemistry, Lund University, Sweden
| | - Thomas Günther-Pomorski
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Björn Hamberger
- Department of Plant and Environmental Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Marité Cárdenas
- Nano Science Center and Department of Chemistry, University of Copenhagen, Copenhagen, Denmark; Biofilm - Research Center for Biointerfaces and Department of Biomedical Science, Malmö University, Malmö, Sweden.
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Cui Y, Li H, Wu S, Zhao R, Du D, Ding Y, Nie H, Ji HL. Formaldehyde impairs transepithelial sodium transport. Sci Rep 2016; 6:35857. [PMID: 27762337 PMCID: PMC5071906 DOI: 10.1038/srep35857] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 10/06/2016] [Indexed: 01/26/2023] Open
Abstract
Unsaturated oxidative formaldehyde is a noxious aldehyde in cigarette smoke that causes edematous acute lung injury. However, the mechanistic effects of formaldehyde on lung fluid transport are still poorly understood. We examined how formaldehyde regulates human epithelial sodium channels (ENaC) in H441 and expressed in Xenopus oocytes and exposed mice in vivo. Our results showed that formaldehyde reduced mouse transalveolar fluid clearance in vivo. Formaldehyde caused a dose-dependent inhibition of amiloride-sensitive short-circuit Na+ currents in H441 monolayers and of αβγ-ENaC channel activity in oocytes. α-ENaC protein was reduced, whereas phosphorylation of the extracellular regulated protein kinases 1 and 2 (ERK1/2) increased significantly post exposure. Moreover, both α- and γ-ENaC transcripts were down-regulated. Reactive oxygen species (ROS) was elevated significantly by formaldehyde in addition to markedly augmented membrane permeability of oocytes. These data suggest that formaldehyde contributes to edematous acute lung injury by reducing transalveolar Na+ transport, through decreased ENaC activity and enhanced membrane depolarization, and by elevating ROS production over long-term exposure.
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Affiliation(s)
- Yong Cui
- Department of Anesthesiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Huiming Li
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, Liaoning, China
| | - Sihui Wu
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, Liaoning, China
| | - Runzhen Zhao
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas, USA
| | - Deyi Du
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, Liaoning, China
| | - Yan Ding
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, Liaoning, China
| | - Hongguang Nie
- Institute of Metabolic Disease Research and Drug Development, China Medical University, Shenyang, Liaoning, China
| | - Hong-Long Ji
- Department of Cellular and Molecular Biology, University of Texas Health Science Center at Tyler, Tyler, Texas, USA
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Alonso L, Alonso A. Hemolytic potential of miltefosine is dependent on cell concentration: Implications for in vitro cell cytotoxicity assays and pharmacokinetic data. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2016; 1858:1160-4. [DOI: 10.1016/j.bbamem.2016.03.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/14/2016] [Accepted: 03/02/2016] [Indexed: 12/30/2022]
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Chan WK, Tan LTH, Chan KG, Lee LH, Goh BH. Nerolidol: A Sesquiterpene Alcohol with Multi-Faceted Pharmacological and Biological Activities. Molecules 2016; 21:molecules21050529. [PMID: 27136520 PMCID: PMC6272852 DOI: 10.3390/molecules21050529] [Citation(s) in RCA: 184] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 04/14/2016] [Accepted: 04/14/2016] [Indexed: 11/16/2022] Open
Abstract
Nerolidol (3,7,11-trimethyl-1,6,10-dodecatrien-3-ol) is a naturally occurring sesquiterpene alcohol that is present in various plants with a floral odor. It is synthesized as an intermediate in the production of (3E)-4,8-dimethy-1,3,7-nonatriene (DMNT), a herbivore-induced volatile that protects plants from herbivore damage. Chemically, nerolidol exists in two geometric isomers, a trans and a cis form. The usage of nerolidol is widespread across different industries. It has been widely used in cosmetics (e.g., shampoos and perfumes) and in non-cosmetic products (e.g., detergents and cleansers). In fact, U.S. Food and Drug Administration (FDA) has also permitted the use of nerolidol as a food flavoring agent. The fact that nerolidol is a common ingredient in many products has attracted researchers to explore more medicinal properties of nerolidol that may exert beneficial effect on human health. Therefore, the aim of this review is to compile and consolidate the data on the various pharmacological and biological activities displayed by nerolidol. Furthermore, this review also includes pharmacokinetic and toxicological studies of nerolidol. In summary, the various pharmacological and biological activities demonstrated in this review highlight the prospects of nerolidol as a promising chemical or drug candidate in the field of agriculture and medicine.
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Affiliation(s)
- Weng-Keong Chan
- School of Pharmacy, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
- Biomedical Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
| | - Loh Teng-Hern Tan
- School of Pharmacy, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
- Biomedical Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
| | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia.
| | - Learn-Han Lee
- School of Pharmacy, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
- Biomedical Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
- Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, 56000 Phayao, Thailand.
| | - Bey-Hing Goh
- School of Pharmacy, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
- Biomedical Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, 47500 Bandar Sunway, Selangor Darul Ehsan, Malaysia.
- Center of Health Outcomes Research and Therapeutic Safety (Cohorts), School of Pharmaceutical Sciences, University of Phayao, 56000 Phayao, Thailand.
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Transmittance and Autofluorescence of Neonatal Rat Stratum Corneum: Nerolidol Increases the Dynamics and Partitioning of Protoporphyrin IX into Intercellular Membranes. J Fluoresc 2016; 26:709-17. [DOI: 10.1007/s10895-015-1758-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 12/28/2015] [Indexed: 10/22/2022]
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Yamamoto ES, Campos BLS, Jesus JA, Laurenti MD, Ribeiro SP, Kallás EG, Rafael-Fernandes M, Santos-Gomes G, Silva MS, Sessa DP, Lago JHG, Levy D, Passero LFD. The Effect of Ursolic Acid on Leishmania (Leishmania) amazonensis Is Related to Programed Cell Death and Presents Therapeutic Potential in Experimental Cutaneous Leishmaniasis. PLoS One 2015; 10:e0144946. [PMID: 26674781 PMCID: PMC4699202 DOI: 10.1371/journal.pone.0144946] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 11/25/2015] [Indexed: 01/01/2023] Open
Abstract
Among neglected tropical diseases, leishmaniasis is one of the most important ones, affecting more than 12 million people worldwide. The available treatments are not well tolerated, and present diverse side effects, justifying the search for new therapeutic compounds. In the present study, the activity of ursolic acid (UA) and oleanolic acid (OA) were assayed in experimental cutaneous leishmaniasis (in vitro and in vivo). Promastigote forms of L. amazonensis were incubated with OA and UA for 24h, and effective concentration 50% (EC50) was estimated. Ultraestructural alterations in Leishmania amazonensis promastigotes after UA treatment were evaluated by transmission electron microscopy, and the possible mode of action was assayed through Annexin V and propidium iodide staining, caspase 3/7 activity, DNA fragmentation and transmembrane mitochondrial potential. The UA potential was evaluated in intracellular amastigotes, and its therapeutic potential was evaluated in L. amazonensis infected BALB/c mice. UA eliminated L. amazonensis promastigotes with an EC50 of 6.4 μg/mL, comparable with miltefosine, while OA presented only a marginal effect on promastigote forms at 100 μg/mL. The possible mechanism by which promastigotes were eliminated by UA was programmed cell death, independent of caspase 3/7, but it was highly dependent on mitochondria activity. UA was not toxic for peritoneal macrophages from BALB/c mice, and it was able to eliminate intracellular amastigotes, associated with nitric oxide (NO) production. OA did not eliminate amastigotes nor trigger NO. L. amazonensis infected BALB/c mice submitted to UA treatment presented lesser lesion size and parasitism compared to control. This study showed, for the first time, that UA eliminate promastigote forms through a mechanism associated with programed cell death, and importantly, was effective in vivo. Therefore, UA can be considered an interesting candidate for future tests as a prototype drug for the treatment of cutaneous leishmaniasis.
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Affiliation(s)
- Eduardo S Yamamoto
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, Brazil
| | - Bruno L S Campos
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, Brazil
| | - Jéssica A Jesus
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, Brazil
| | - Márcia D Laurenti
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, Brazil
| | - Susan P Ribeiro
- Laboratory of Clinical Immunology and Allergy (LIM60), University of São Paulo, School of Medicine. Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, Brazil
- Department of Pathology, Case Western Reserve University, 2103 Cornell Rd, Cleveland, OH 44106, United States of America
| | - Esper G Kallás
- Laboratory of Clinical Immunology and Allergy (LIM60), University of São Paulo, School of Medicine. Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, Brazil
| | - Mariana Rafael-Fernandes
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa, Rua da Junqueira 100, 1349-008 Lisboa, Portugal
| | - Gabriela Santos-Gomes
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa, Rua da Junqueira 100, 1349-008 Lisboa, Portugal
| | - Marcelo S Silva
- Global Health and Tropical Medicine, Instituto de Higiene e Medicina Tropical (IHMT), Universidade Nova de Lisboa, Rua da Junqueira 100, 1349-008 Lisboa, Portugal
| | - Deborah P Sessa
- Institute of Environmental, Chemical and Pharmaceutical Sciences - Federal University of São Paulo, Rua São Nicolau, 210, 09920-000, Diadema, SP, Brazil
| | - João H G Lago
- Institute of Environmental, Chemical and Pharmaceutical Sciences - Federal University of São Paulo, Rua São Nicolau, 210, 09920-000, Diadema, SP, Brazil
| | - Débora Levy
- Laboratory of Genetics and Molecular Hematology (LIM31), University of São Paulo, School of Medicine. Av. Dr. Enéas de Carvalho Aguiar, 155. Cerqueira César, São Paulo, Brazil
| | - Luiz F D Passero
- Laboratory of Pathology of Infectious Diseases (LIM50), Department of Pathology, Medical School of São Paulo University, Av. Dr. Arnaldo, 455. Cerqueira César, São Paulo, 01246-903, SP, Brazil
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Membrane Interactions of Phytochemicals as Their Molecular Mechanism Applicable to the Discovery of Drug Leads from Plants. Molecules 2015; 20:18923-66. [PMID: 26501254 PMCID: PMC6332185 DOI: 10.3390/molecules201018923] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/11/2015] [Accepted: 10/14/2015] [Indexed: 02/02/2023] Open
Abstract
In addition to interacting with functional proteins such as receptors, ion channels, and enzymes, a variety of drugs mechanistically act on membrane lipids to change the physicochemical properties of biomembranes as reported for anesthetic, adrenergic, cholinergic, non-steroidal anti-inflammatory, analgesic, antitumor, antiplatelet, antimicrobial, and antioxidant drugs. As well as these membrane-acting drugs, bioactive plant components, phytochemicals, with amphiphilic or hydrophobic structures, are presumed to interact with biological membranes and biomimetic membranes prepared with phospholipids and cholesterol, resulting in the modification of membrane fluidity, microviscosity, order, elasticity, and permeability with the potencies being consistent with their pharmacological effects. A novel mechanistic point of view of phytochemicals would lead to a better understanding of their bioactivities, an insight into their medicinal benefits, and a strategic implication for discovering drug leads from plants. This article reviews the membrane interactions of different classes of phytochemicals by highlighting their induced changes in membrane property. The phytochemicals to be reviewed include membrane-interactive flavonoids, terpenoids, stilbenoids, capsaicinoids, phloroglucinols, naphthodianthrones, organosulfur compounds, alkaloids, anthraquinonoids, ginsenosides, pentacyclic triterpene acids, and curcuminoids. The membrane interaction’s applicability to the discovery of phytochemical drug leads is also discussed while referring to previous screening and isolating studies.
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Widhalm JR, Jaini R, Morgan JA, Dudareva N. Rethinking how volatiles are released from plant cells. TRENDS IN PLANT SCIENCE 2015; 20:545-50. [PMID: 26189793 DOI: 10.1016/j.tplants.2015.06.009] [Citation(s) in RCA: 105] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/14/2015] [Accepted: 06/25/2015] [Indexed: 05/20/2023]
Abstract
For plant volatile organic compounds (VOCs) to be emitted, they must cross membrane(s), the aqueous cell wall, and sometimes the cuticle, before moving into the gas phase. It is presumed that VOC movement through each barrier occurs via passive diffusion. However, VOCs, which are primarily nonpolar compounds, will preferentially partition into membranes, making diffusion into aqueous compartments slow. Using Fick's first law, we calculated that to achieve observed VOC emission rates by diffusion alone would necessitate toxic VOC levels in membranes. Here, we propose that biological mechanisms, such as those involved in trafficking other hydrophobic compounds, must contribute to VOC emission. Such parallel biological pathways would lower barrier resistances and, thus, steady-state emission rates could be maintained with significantly reduced intramembrane VOC concentrations.
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Affiliation(s)
- Joshua R Widhalm
- Department of Biochemistry, Purdue University, 175 South University St., West Lafayette, IN 47907-2063, USA
| | - Rohit Jaini
- School of Chemical Engineering, Purdue University, 480 Stadium Mall Dr., West Lafayette, IN 47907-2100, USA
| | - John A Morgan
- Department of Biochemistry, Purdue University, 175 South University St., West Lafayette, IN 47907-2063, USA; School of Chemical Engineering, Purdue University, 480 Stadium Mall Dr., West Lafayette, IN 47907-2100, USA
| | - Natalia Dudareva
- Department of Biochemistry, Purdue University, 175 South University St., West Lafayette, IN 47907-2063, USA; Department of Horticulture and Landscape Architecture, Purdue University, 625 Agriculture Mall Dr., West Lafayette, IN 47907-2010, USA.
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Houël E, Gonzalez G, Bessière JM, Odonne G, Eparvier V, Deharo E, Stien D. Therapeutic switching: from antidermatophytic essential oils to new leishmanicidal products. Mem Inst Oswaldo Cruz 2015; 110:106-13. [PMID: 25742270 PMCID: PMC4371224 DOI: 10.1590/0074-02760140332] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 01/12/2015] [Indexed: 11/22/2022] Open
Abstract
This study examined whether the antidermatophytic activity of essential oils (EOs)
can be used as an indicator for the discovery of active natural products against
Leishmania amazonensis. The aerial parts of seven plants were hydrodistilled. Using
broth microdilution techniques, the obtained EOs were tested against three strains of
dermatophytes (Trichophyton mentagrophytes, Microsporum gypseum and Microsporum
canis). To compare the EOs antifungal and antiparasitic effects, the EOs activities
against axenic amastigotes of L. amazonensis were concurrently evaluated. For the
most promising EOs, their antileishmanial activities against parasites infecting
peritoneal macrophages of BALB/c mice were measured. The most interesting antifungal
candidates were the EOs from Cymbopogon citratus, Otacanthus azureus and Protium
heptaphyllum, whereas O. azureus, Piper hispidum and P. heptaphyllum EOs exhibited
the lowest 50% inhibitory concentration (IC50) values against axenic
amastigotes, thus revealing a certain correspondence between both activities. The P.
hispidum EO was identified as the most promising product in the results from the
infected macrophages model (IC50: 4.7 µg/mL, safety index: 8). The most
abundant compounds found in this EO were sesquiterpenes, notably curzerene and
furanodiene. Eventually, the evaluation of the antidermatophytic activity of EOs
appears to be an efficient method for identifying new potential drugs for the
treatment of L. amazonensis.
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Affiliation(s)
- Emeline Houël
- Centre National de la Recherche Scientifique, Institut Pasteur de la Guyane, Cayenne, French Guiana
| | - German Gonzalez
- Faculté des Sciences Pharmaceutiques, Université de Toulouse III-Paul Sabatier, Toulouse, France
| | | | - Guillaume Odonne
- Centre National de la Recherche Scientifique-Guyane, Cayenne, French Guiana
| | - Véronique Eparvier
- Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France
| | - Eric Deharo
- Faculté des Sciences Pharmaceutiques, Université de Toulouse III-Paul Sabatier, Toulouse, France
| | - Didier Stien
- Institut de Chimie des Substances Naturelles, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France
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Mendanha SA, Alonso A. Effects of terpenes on fluidity and lipid extraction in phospholipid membranes. Biophys Chem 2015; 198:45-54. [PMID: 25687600 DOI: 10.1016/j.bpc.2015.02.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 01/29/2015] [Accepted: 02/01/2015] [Indexed: 12/16/2022]
Abstract
Electron paramagnetic resonance (EPR) spectroscopy was used in a detailed study of the interactions of several terpenes with DPPC membranes. EPR spectra of a spin-label lipid allowed the identification of two well-resolved spectral components at temperatures below and above the main phase transition of the lipid bilayer. Terpenes caused only slight mobility increases in each of these spectral components; however, they substantially increased the population of the more mobile component. In addition, the terpenes reduced the temperature of the main phase transition by more than 8 °C and caused the extraction of the spin-labeled lipid. Nerolidol, which had the highest octanol-water partition coefficient, generated the highest amount of spin label extraction. Acting as spacers, terpenes should cause major reorganization in cell membranes, leading to an increase in the overall molecular dynamics of the membrane. At higher concentrations, terpenes may cause lipid extraction and thus leakage of the cytoplasmic content.
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Affiliation(s)
| | - Antonio Alonso
- Instituto de Física, Universidade Federal de Goiás, Goiânia, GO, Brazil.
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Monzote L, Piñón A, Setzer WN. Antileishmanial Potential of Tropical Rainforest Plant Extracts. MEDICINES (BASEL, SWITZERLAND) 2014; 1:32-55. [PMID: 28933376 PMCID: PMC5532977 DOI: 10.3390/medicines1010032] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2014] [Revised: 11/11/2014] [Accepted: 11/12/2014] [Indexed: 05/02/2023]
Abstract
A total of 115 different plant extracts from our collection, representing 96 plant species, have been evaluated for in vitro antileishmanial activity against L. amazonensis promastigotes. In addition, the extracts were screened for cytotoxic activity against BALB/c mouse macrophages in order to assess a selectivity index. Crude extracts that showed a selectivity index (CC50 for macrophage / IC50 for promastigotes) ³ 5 or with IC50 < 12.5 μg/mL against promastigotes, a total of 28 extracts, were further screened for anti-amastigote activity. A total of 25 extracts showed promising activity against L. amazonensis promastigotes with low cytotoxic activity. Ten of these extracts showed selectivity indices, (CC50 for macrophages / IC50 for amastigotes) greater than 10 and are considered "hits", worthy candidates for further phytochemical exploration: Conostegia xalapensis methanol bark extract, Endiandra palmerstonii bark extract, Eugenia monteverdensis acetone bark extract, Eugenia sp. "fine leaf" acetone bark extract, Exothea paniculata chloroform bark extract, Mallotus paniculatus ethanol bark extract, Matelea pseudobarbata ethanol extract, Quercus insignis ethanol bark extract, Sassafras albidum dichloromethane bark extract, and Stemmadenia donnell-smithii acetone bark extract.
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Affiliation(s)
- Lianet Monzote
- Parasitology Department, Institute of Tropical Medicine "Pedro Kouri", 10400 Havana, Cuba.
| | - Abel Piñón
- Parasitology Department, Institute of Tropical Medicine "Pedro Kouri", 10400 Havana, Cuba.
| | - William N Setzer
- Department of Chemistry, University of Alabama in Huntsville, Huntsville, AL 35899, USA.
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