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Diksha, Singh S, Mahajan E, Sohal SK. Immunomodulatory, cyto-genotoxic, and growth regulatory effects of nerolidol on melon fruit fly, Zeugodacus cucurbitae (Coquillett) (Diptera: Tephritidae). Toxicon 2023; 233:107248. [PMID: 37562702 DOI: 10.1016/j.toxicon.2023.107248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2023] [Revised: 06/25/2023] [Accepted: 08/07/2023] [Indexed: 08/12/2023]
Abstract
Insects have evolved a robust immune system consisting of humoral and cellular branches and their orchestrated response enables insect to defend against exogenous stressors. Exploration of underlying immune mechanisms of insect pest under allelochemical stress can give us new insights on insect pest management. In this study, nerolidol, a plant sesquiterpene was evaluated for its insecticidal, growth regulatory, immunomodulatory, and cyto-genotoxic effects against melon fruit fly, Zeugodacus cucurbitae (Coquillett). First, second, and third instar larvae of Z. cucurbitae were fed on artificial diet containing different concentrations (5, 25, 125, 625, and 3125 ppm) of nerolidol. Results revealed a significant reduction in pupation and adult emergence as well as prolongation of developmental duration of treated larvae. Decline in growth indices showed remarkable growth inhibitory effects of nerolidol. Pupal weight and nutritional parameters viz. Larval weight gain, food assimilated, and mean relative growth rate declined after treatment. Immunological studies on second instar larvae depicted a drop in total hemocyte count and variations in proportions of plasmatocytes and granulocytes of LC30 and LC50 treated larvae. Phenoloxidase activity in nerolidol treated larvae initially increased but was suppressed after 72 h of treatment. The frequency of viable hemocytes decreased and that of apoptotic and necrotic hemocytes increased with both the lethal concentrations of nerolidol. Comet assay revealed a significant damage to DNA of hemocytes. The findings of the current study indicate that nerolidol exerts its insecticidal action through growth regulation, immunomodulation, and cyto-genotoxicity thus revealing its potential to be used as biopesticide against Z. cucurbitae.
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Affiliation(s)
- Diksha
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Sumit Singh
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Evani Mahajan
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India
| | - Satwinder Kaur Sohal
- Department of Zoology, Guru Nanak Dev University, Amritsar, 143005, Punjab, India.
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Wu HB, Ma LH, Li XM, Liu TT. Selective Phytotoxic Effects of Sesquiterpenoids from Sonchus arvensis as a Preliminary Approach for the Biocontrol of Two Problematic Weeds of Wheat. J Agric Food Chem 2022; 70:9412-9420. [PMID: 35879021 DOI: 10.1021/acs.jafc.2c03462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The objective of this study is to find new selective allelochemicals for managing two problematic weeds redroot pigweed (Amaranthus retroflexus) and common lambsquarters (Chenopodium album) with minimal negative effects on wheat, thereby facilitating the development of eco-friendly botanical herbicide. Three new sesquiterpenoids, sonarvenolide A-C (1-3), and nine known sesquiterpenoids (4-12) were isolated from Sonchus arvensis. Compound 1 was a rare peroxide-substituted eudesmane-type sesquiterpenoid, and compound 3 was a rare iphionane-type sesquiterpenoid. Notably, compounds 1, 3, 4, 6-8, and 11 showed selectivity phytotoxic activity. In particular, compounds 1, 3, and 4 exhibited excellent germination inhibitory effect on A. retroflexus (IC50 = 32.0-129.0 μM), higher than that of the positive control triasulfuron (IC50 = 141.7 μM), and compound 4 showed excellent inhibition on C. album (IC50 = 82.0 μM), higher than that of triasulfuron (IC50 = 100.9 μM). In addition, compounds 1, 3, and 4 showed allelopathy to the growth of two weeds, which were more potent than or close to that of triasulfuron. Furthermore, these compounds were not toxic to wheat even at a high concentration (1000 μM). Structure-activity relationships (SARs) revealed that the presence of peroxides or the absence of hydroxyl at C-5 in the eudesmane-type sesquiterpenoids could strengthen the inhibitory activities. The discovery of selective allelochemicals provides not only a new choice to control two problematic weeds of wheat but also new natural lead compounds for herbicides.
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Affiliation(s)
- Hai-Bo Wu
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, People's Republic of China
| | - Lin-Hui Ma
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, People's Republic of China
| | - Xi-Meng Li
- College of Life and Environmental Sciences, Minzu University of China, Beijing 100081, People's Republic of China
| | - Ting-Ting Liu
- Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, People's Republic of China
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Kisielius V, Drejer M, Dornhoff JK, Mrkajic NS, Lindqvist DN, Hansen HCB, Rasmussen LH. Occurrence and stability of ptesculentoside, caudatoside and ptaquiloside in surface waters. Environ Sci Process Impacts 2022; 24:277-289. [PMID: 35043811 DOI: 10.1039/d1em00364j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The illudane glycosides ptesculentoside (PTE), caudatoside (CAU) and ptaquiloside (PTA) are found in bracken ferns (Pteridium sp.). PTA is known to contaminate water bodies adjacent to bracken ferns and hence contribute to water toxicity. This study for the first time reports the presence of PTE and CAU in surface waters with concentrations up to 5.3 μg L-1 and outlines their stability under semi-natural conditions using water of two diverse lakes at their natural pH or pH adjusted to 6.5, with temperature controlled at 5 or 15 °C, and in the presence or absence of microbial activity. Under the same set of tested conditions the three illudane glycosides degraded at similar rates: with half-lives of approximately two days at pH 7.4 and 15 °C, and approximately 12 days at pH 5.2-6.5 and 5 °C. The water origin had significant influence on the degradation rates, but only due to its difference in pH. In most cases, the degradation rates of all the three illudane glycosides could be predicted using the existing first-order model for PTA hydrolysis. As PTE and CAU exhibit the same leaching pattern and stability as PTA, previous predictions of bracken environmental impact are likely underestimated, as PTE and CAU have not been monitored and included in the risk assessment.
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Affiliation(s)
- Vaidotas Kisielius
- Department of Technology, University College Copenhagen, Sigurdsgade 26, 2200 Copenhagen, Denmark
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
- Department of Environmental Science, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - Mikkel Drejer
- Department of Technology, University College Copenhagen, Sigurdsgade 26, 2200 Copenhagen, Denmark
| | - Jimmy Kjellerup Dornhoff
- Department of Technology, University College Copenhagen, Sigurdsgade 26, 2200 Copenhagen, Denmark
| | - Natasa Skrbic Mrkajic
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
- Greater Copenhagen Utility HOFOR, Ørestads Boulevard 35, 2300 Copenhagen, Denmark
| | - Dan Nybro Lindqvist
- Department of Technology, University College Copenhagen, Sigurdsgade 26, 2200 Copenhagen, Denmark
| | - Hans Christian Bruun Hansen
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871 Frederiksberg, Denmark.
| | - Lars Holm Rasmussen
- Department of Technology, University College Copenhagen, Sigurdsgade 26, 2200 Copenhagen, Denmark
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Cárdenas D, Rial C, Varela RM, Molinillo JM, Macías FA. Synthesis of Pertyolides A, B, and C: A Synthetic Procedure to C 17-Sesquiterpenoids and a Study of Their Phytotoxic Activity. J Nat Prod 2021; 84:2295-2302. [PMID: 34369759 PMCID: PMC8638260 DOI: 10.1021/acs.jnatprod.1c00396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Indexed: 06/13/2023]
Abstract
C17-sesquiterpenoids are a group of natural products that have been recently discovered. These compounds have the peculiarity of lacking the α,β-methylene butyrolactone system, which is known to be quite relevant for many of the biological activities reported for sesquiterpene lactones. Unfortunately, the biological interest of C17-sesquiterpenoids has not been studied in-depth, mainly due to the poor isolation yields in which they can be obtained from natural sources. Therefore, in order to allow a deeper study of these novel molecules, we have worked out a synthetic pathway that provides C17-sesquiterpenoids in enough quantities from easily accessible sesquiterpene lactones to enable a more thorough investigation of their bioactivities. With this synthesis method, we have successfully synthesized, for the first time, three natural C17-sesquiterpenoids, pertyolides A, B, and C, with good overall yields. Furthermore, we have also evaluated their phytotoxicity against etiolated wheat coleoptiles and corroborated that pertyolides B and C present strong phytotoxic activity.
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Affiliation(s)
- David
M. Cárdenas
- Allelopathy
Group, Department of Organic Chemistry, Institute of Biomolecules
(INBIO), Campus CEIA3, School of Science, University of Cadiz, C/República Saharaui 7, 11510 Puerto Real, Cádiz, Spain
| | - Carlos Rial
- Allelopathy
Group, Department of Organic Chemistry, Institute of Biomolecules
(INBIO), Campus CEIA3, School of Science, University of Cadiz, C/República Saharaui 7, 11510 Puerto Real, Cádiz, Spain
| | - Rosa M. Varela
- Allelopathy
Group, Department of Organic Chemistry, Institute of Biomolecules
(INBIO), Campus CEIA3, School of Science, University of Cadiz, C/República Saharaui 7, 11510 Puerto Real, Cádiz, Spain
| | - José M.
G. Molinillo
- Allelopathy
Group, Department of Organic Chemistry, Institute of Biomolecules
(INBIO), Campus CEIA3, School of Science, University of Cadiz, C/República Saharaui 7, 11510 Puerto Real, Cádiz, Spain
| | - Francisco A. Macías
- Allelopathy
Group, Department of Organic Chemistry, Institute of Biomolecules
(INBIO), Campus CEIA3, School of Science, University of Cadiz, C/República Saharaui 7, 11510 Puerto Real, Cádiz, Spain
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Gayathri L, Akbarsha MA, Ruckmani K. In vitro study on aspects of molecular mechanisms underlying invasive aspergillosis caused by gliotoxin and fumagillin, alone and in combination. Sci Rep 2020; 10:14473. [PMID: 32879392 PMCID: PMC7467938 DOI: 10.1038/s41598-020-71367-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 08/06/2020] [Indexed: 12/19/2022] Open
Abstract
Gliotoxin (GT) and fumagillin (FUM) are mycotoxins most abundantly produced by Aspergillus fumigatus during the early stages of infection to cause invasive aspergillosis (IA). Therefore, we hypothesized that GT and FUM could be the possible source of virulence factors, which we put to test adopting in vitro monoculture and the novel integrated multiple organ co-culture (IdMOC) of A549 and L132 cell. We found that (i) GT is more cytotoxic to lung epithelial cells than FUM, and (ii) GT and FUM act synergistically to inflict pathology to the lung epithelial cell. Reactive oxygen species (ROS) is the master regulator of the cytotoxicity of GT, FUM and GT + FUM. ROS may be produced as a sequel to mitochondrial damage and, thus, mitochondria are both the source of ROS and the target to ROS. GT-, FUM- and GT + FUM-induced DNA damage is mediated either by ROS-dependent mechanism or directly by the fungal toxins. In addition, GT, FUM and GT + FUM may induce protein accumulation. Further, it is speculated that GT and FUM inflict epithelial damage by neutrophil-mediated inflammation. With respect to multiple organ cytotoxicity, GT was found to be cytotoxic at IC50 concentration in the following order: renal epithelial cells < type II epithelial cells < hepatocytes < normal lung epithelial cells. Taken together, GT and FUM alone and in combination contribute to exacerbate the damage of lung epithelial cells and, thus, are involved in the progression of IA.
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Affiliation(s)
- Loganathan Gayathri
- Department of Pharmaceutical Technology, University College of Engineering, Anna University-BIT Campus, Tiruchchirappalli, Tamil Nadu, 620024, India
- Centre for Excellence in Nanobio Translational Research (Autonomous), University College of Engineering, Anna University-BIT Campus, Tiruchchirappalli, Tamil Nadu, 620024, India
- Department of Biotechnology and Bioinformatics, Holy Cross College (Autonomous), Tiruchchirappalli, Tamil Nadu, 620002, India
| | - Mohammad A Akbarsha
- National College (Autonomous), Tiruchchirappalli, Tamil Nadu, 620001, India
- Mahatma Gandhi-Doerenkamp Centre for Alternatives, Bharathidasan University, Tiruchchirappalli, Tamil Nadu, 620 024, India
| | - Kandasamy Ruckmani
- Department of Pharmaceutical Technology, University College of Engineering, Anna University-BIT Campus, Tiruchchirappalli, Tamil Nadu, 620024, India.
- Centre for Excellence in Nanobio Translational Research (Autonomous), University College of Engineering, Anna University-BIT Campus, Tiruchchirappalli, Tamil Nadu, 620024, India.
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Pintatum A, Maneerat W, Logie E, Tuenter E, Sakavitsi ME, Pieters L, Berghe WV, Sripisut T, Deachathai S, Laphookhieo S. In Vitro Anti-Inflammatory, Anti-Oxidant, and Cytotoxic Activities of Four Curcuma Species and the Isolation of Compounds from Curcuma aromatica Rhizome. Biomolecules 2020; 10:biom10050799. [PMID: 32455782 PMCID: PMC7277146 DOI: 10.3390/biom10050799] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/19/2020] [Accepted: 05/19/2020] [Indexed: 12/16/2022] Open
Abstract
The genus Curcuma is part of the Zingiberaceae family, and many Curcuma species have been used as traditional medicine and cosmetics in Thailand. To find new cosmeceutical ingredients, the in vitro anti-inflammatory, anti-oxidant, and cytotoxic activities of four Curcuma species as well as the isolation of compounds from the most active crude extract (C. aromatica) were investigated. The crude extract of C. aromatica showed 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity with an IC50 value of 102.3 μg/mL. The cytotoxicity effect of C. aeruginosa, C. comosa, C. aromatica, and C. longa extracts assessed with the 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl tetrazolium bromide (MTT) assay at 200 μg/mL were 12.1 ± 2.9, 14.4 ± 4.1, 28.6 ± 4.1, and 46.9 ± 8.6, respectively. C. aeruginosa and C. comosa presented apoptosis cells (57.7 ± 3.1% and 32.6 ± 2.2%, respectively) using the CytoTox-ONE™ assay. Different crude extracts or phytochemicals purified from C. aromatica were evaluated for their anti-inflammatory properties. The crude extract of C. aromatica showed the highest potential to inhibit NF-κB activity, followed by C. aeruginosa, C. comosa, and C. longa, respectively. Among the various purified phytochemicals curcumin, germacrone, curdione, zederone, and curcumenol significantly inhibited NF-κB activation in tumor necrosis factor (TNF) stimulated HaCaT keratinocytes. Of all compounds, curcumin was the most potent anti-inflammatory.
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Affiliation(s)
- Aknarin Pintatum
- Center of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.P.); (W.M.); (S.D.)
| | - Wisanu Maneerat
- Center of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.P.); (W.M.); (S.D.)
- Medicinal Plants Innovation Center of Mae Fah Luang University, Chiang Rai 57100, Thailand
| | - Emilie Logie
- Lab Protein Chemistry, Proteomics & Epigenetic Signalling (PPES), Department Biomedical Sciences, University of Antwerp, 2610 Wilrijk, Belgium;
| | - Emmy Tuenter
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (E.T.); (L.P.)
| | - Maria E. Sakavitsi
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Zografou, 15771 Athens, Greece;
| | - Luc Pieters
- Natural Products & Food Research and Analysis (NatuRA), Department of Pharmaceutical Sciences, University of Antwerp, 2610 Wilrijk, Belgium; (E.T.); (L.P.)
| | - Wim Vanden Berghe
- Lab Protein Chemistry, Proteomics & Epigenetic Signalling (PPES), Department Biomedical Sciences, University of Antwerp, 2610 Wilrijk, Belgium;
- Correspondence: (W.V.B.); (S.L.); Tel.: +32-3265-2657 (W.V.B.); +66-5391-6782 (S.L.)
| | - Tawanun Sripisut
- School of Cosmetic Science, Mae Fah Luang University, Chiang Rai 57100, Thailand;
| | - Suwanna Deachathai
- Center of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.P.); (W.M.); (S.D.)
| | - Surat Laphookhieo
- Center of Chemical Innovation for Sustainability (CIS) and School of Science, Mae Fah Luang University, Chiang Rai 57100, Thailand; (A.P.); (W.M.); (S.D.)
- Medicinal Plants Innovation Center of Mae Fah Luang University, Chiang Rai 57100, Thailand
- Correspondence: (W.V.B.); (S.L.); Tel.: +32-3265-2657 (W.V.B.); +66-5391-6782 (S.L.)
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Ribeiro DDSF, Keller KM, Soto-Blanco B. Ptaquiloside and Pterosin B Levels in Mature Green Fronds and Sprouts of Pteridium arachnoideum. Toxins (Basel) 2020; 12:toxins12050288. [PMID: 32369939 PMCID: PMC7291230 DOI: 10.3390/toxins12050288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 04/28/2020] [Accepted: 04/29/2020] [Indexed: 01/08/2023] Open
Abstract
Pteridium arachnoideum, a fern of the Pteridium aquilinum species complex found in South America, is responsible for several different syndromes of poisoning. Cases of bovine enzootic hematuria and upper alimentary squamous cell carcinoma are both frequent occurrences in Brazil, whereas only bovine enzootic hematuria is noted with any frequency around the world. The reason for the high frequency of upper alimentary squamous cell carcinoma in Brazil is not currently known. One possible explanation may be the higher levels of ptaquiloside and pterosin B in Brazilian Pteridium than those present in the plant in other countries. However, these levels have not yet been determined in P. arachnoideum. Thus, the present study aimed to measure and compare ptaquiloside and pterosin B levels in mature green fronds and sprouts of P. arachnoideum collected from different locations in Brazil. Samples of P. arachnoideum were collected from the states of Minas Gerais and Rio Grande do Sul. A total of 28 mature leaf samples and 23 sprout samples were used. The mean concentrations of ptaquiloside and pterosin B present in the mature green fronds of P. arachnoideum ranged from 2.49 to 2.75 mg/g and 0.68 to 0.88 mg/g, respectively; in P. arachnoideum sprouts, mean concentrations of ptaquiloside and pterosin B ranged from 12.47 to 18.81 mg/g, and 4.03 to 10.42 mg/g for ptaquiloside and pterosin B, respectively. Thus, ptaquiloside and pterosin B levels in P. arachnoideum samples collected in Brazil were higher in sprouts than in mature green fronds, as observed in other countries. However, there was no variation in ptaquiloside levels among plants collected from different cities in Brazil. The high frequency of upper alimentary squamous cell carcinoma in Brazilian cattle may not be attributed to greater levels of ptaquiloside and pterosin B in P. arachnoideum than in other Pteridium species in other countries.
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Affiliation(s)
| | - Kelly Moura Keller
- Department of Preventive Veterinary Medicine, Veterinary School, Universidade Federal de Minas Gerais (UFMG), Av. Antônio Carlos 6627, Belo Horizonte MG 30123-970, Brasil;
| | - Benito Soto-Blanco
- Department of Veterinary Clinics and Surgery, Veterinary School, Universidade Federal de Minas Gerais (UFMG), Av. Antônio Carlos 6627, Belo Horizonte MG 30123-970, Brasil
- Correspondence:
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Bazioli JM, Costa JH, Shiozawa L, Ruiz ALTG, Foglio MA, Carvalho JED. Anti-Estrogenic Activity of Guajadial Fraction, from Guava Leaves ( Psidium guajava L.). Molecules 2020; 25:E1525. [PMID: 32230839 PMCID: PMC7181212 DOI: 10.3390/molecules25071525] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/11/2020] [Accepted: 03/17/2020] [Indexed: 12/21/2022] Open
Abstract
The research of natural products has allowed for the discovery of biologically relevant compounds inspired by plant secondary metabolites, which contributes to the development of many chemotherapeutic drugs used in cancer treatment. Psidium guajava leaves present a diverse phytochemical composition including flavonoids, phenolics, meroterpenoids, and triterpenes as the major bioactive constituents. Guajadial, a caryophyllene-based meroterpenoid, has been studied for potential anticancer effects tested in tumor cells and animal experimental models. Moreover, guajadial has been reported to have a mechanism of action similar to tamoxifen, suggesting this compound as a promisor phytoestrogen-based therapeutic agent. Herein, the anti-estrogenic action and anti-proliferative activity of guajadial is reported. The enriched guajadial fraction was obtained by sequential chromatographic techniques from the crude P. guajava dichloromethane extract showing promising anti-proliferative activity in vitro with selectivity for human breast cancer cell lines MCF-7 and MCF-7 BUS (Total Growth Inhibition = 5.59 and 2.27 µg·mL-1, respectively). Furthermore, evaluation of anti-estrogenic activity in vivo was performed demonstrating that guajadial enriched fraction inhibited the proliferative effect of estradiol on the uterus of pre-pubescent rats. These results suggest a relationship between anti-proliferative and anti-estrogenic activity of guajadial, which possibly acts in tumor inhibition through estrogen receptors due to the compounds structural similarity to tamoxifen.
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Affiliation(s)
- Jaqueline Moraes Bazioli
- Faculty of Pharmaceutical Sciences, University of Campinas, 13083-859 Campinas, SP, Brazil
- Institute of Chemistry, University of Campinas, P.O.Box 6154, 13083-970 Campinas, SP, Brazil
| | - Jonas Henrique Costa
- Institute of Chemistry, University of Campinas, P.O.Box 6154, 13083-970 Campinas, SP, Brazil
| | - Larissa Shiozawa
- Faculty of Pharmaceutical Sciences, University of Campinas, 13083-859 Campinas, SP, Brazil
- Postgraduate program in Dentistry, Piracicaba Dental School, University of Campinas, 13 414-903, Piracicaba, SP, Brazil
| | | | - Mary Ann Foglio
- Faculty of Pharmaceutical Sciences, University of Campinas, 13083-859 Campinas, SP, Brazil
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Xue S, Zhang P, Tang P, Wang C, Kong L, Luo J. Acyclic diterpene and norsesquiterpene from the seed of Aphanamixis polystachya. Fitoterapia 2020; 142:104518. [PMID: 32092532 DOI: 10.1016/j.fitote.2020.104518] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/15/2020] [Accepted: 02/16/2020] [Indexed: 11/18/2022]
Abstract
Aphanamoxene A-D (1-4), three new acyclic diterpene derivatives and one new acyclic norsesquiterpene were isolated from the seed of Aphanamixis polystachya. Their structures were elucidated on the basis of extensive spectroscopic methods, including 1D and 2D NMR and HRESIMS. And the absolute configuration of 1 was achieved by Mosher method. These acyclic terpenoids (1-4) showed obvious nitric oxide production inhibitory activity on lipopolysaccharide-Induced RAW264.7 macrophages with IC50 values of 17.6 ± 1.4, 9.8 ± 0.7, 16.6 ± 1.2, and 14.2 ± 0.9 μM, respectively.
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Affiliation(s)
- Shang Xue
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Panpan Zhang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Pengfei Tang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Chengcheng Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
| | - Jun Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research and State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 24 Tong Jia Xiang, Nanjing 210009, People's Republic of China.
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Zhang Q, Tian X, Cao X. Transferrin-functionalised microemulsion co-delivery of β-elemene and celastrol for enhanced anti-lung cancer treatment and reduced systemic toxicity. Drug Deliv Transl Res 2020; 9:667-678. [PMID: 30798476 DOI: 10.1007/s13346-019-00623-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
In this study, we developed an intravenously injectable, transferrin-functionalised microemulsion that simultaneously carries β-elemene and celastrol (called Tf-EC-MEs) for enhanced anti-lung cancer treatment and reduced systemic toxicity. These dual-drug-loaded Tf-EC-MEs not only displayed synergistic antiproliferative effects on cultured cells in vitro, but also showed enhanced efficacy in vivo via active tumour targeting. In preparatory experiments, we found that β-elemene was capable of being used as oil phase, which enhanced drug-loading efficiency and allowed the mass ratio of β-elemene and celastrol to be optimised. In cellular studies, Tf-EC-MEs exhibited significantly improved A549 cellular uptake compared with β-elemene+celastrol (conventional combination treatment) and EC-MEs (non-active targeted treatment), demonstrating remarkable synergistic antiproliferative effects and higher rates of cell apoptosis. In A549-bearing xenograft mouse tumour models, Tf-EC-MEs exhibited enhanced antitumour activity compared to all other treatments. More importantly, Tf-EC-MEs did not cause the obvious systemic toxicity commonly found with mono-celastrol treatment. Collectively, these findings suggest that Tf-EC-MEs are a promising strategy for the combination drug treatment of lung cancer.
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Affiliation(s)
- Qian Zhang
- The Affiliated Sir Run Run Hospital, Nanjing Medical University, Nanjing, 210009, People's Republic of China
- The Affiliated Nanjing Hospital, Nanjing Medical University, Changle road 68, Nanjing, 210009, Jiangsu, People's Republic of China
| | - Xin Tian
- Fourth Military Medical University, Xi'an, 710003, People's Republic of China
- Traditional Chinese Medicine Hospital of Shaanxi Province, Xi'an, 710003, People's Republic of China
| | - Xiufeng Cao
- The Affiliated Nanjing Hospital, Nanjing Medical University, Changle road 68, Nanjing, 210009, Jiangsu, People's Republic of China.
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11
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Guruceaga X, Perez-Cuesta U, Abad-Diaz de Cerio A, Gonzalez O, Alonso RM, Hernando FL, Ramirez-Garcia A, Rementeria A. Fumagillin, a Mycotoxin of Aspergillus fumigatus: Biosynthesis, Biological Activities, Detection, and Applications. Toxins (Basel) 2019; 12:E7. [PMID: 31861936 PMCID: PMC7020470 DOI: 10.3390/toxins12010007] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 12/26/2022] Open
Abstract
Fumagillin is a mycotoxin produced, above all, by the saprophytic filamentous fungus Aspergillus fumigatus. This mold is an opportunistic pathogen that can cause invasive aspergillosis, a disease that has high mortality rates linked to it. Its ability to adapt to environmental stresses through the production of secondary metabolites, including several mycotoxins (gliotoxin, fumagillin, pseurotin A, etc.) also seem to play an important role in causing these infections. Since the discovery of the A. fumigatus fumagillin in 1949, many studies have focused on this toxin and in this review we gather all the information currently available. First of all, the structural characteristics of this mycotoxin and the different methods developed for its determination are given in detail. Then, the biosynthetic gene cluster and the metabolic pathway involved in its production and regulation are explained. The activity of fumagillin on its target, the methionine aminopeptidase type 2 (MetAP2) enzyme, and the effects of blocking this enzyme in the host are also described. Finally, the applications that this toxin and its derivatives have in different fields, such as the treatment of cancer and its microsporicidal activity in the treatment of honeybee hive infections with Nosema spp., are reviewed. Therefore, this work offers a complete review of all the information currently related to the fumagillin mycotoxin secreted by A. fumigatus, important because of its role in the fungal infection process but also because it has many other applications, notably in beekeeping, the treatment of infectious diseases, and in oncology.
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Affiliation(s)
- Xabier Guruceaga
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (X.G.); (U.P.-C.); (A.A.-D.d.C.); (F.L.H.)
| | - Uxue Perez-Cuesta
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (X.G.); (U.P.-C.); (A.A.-D.d.C.); (F.L.H.)
| | - Ana Abad-Diaz de Cerio
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (X.G.); (U.P.-C.); (A.A.-D.d.C.); (F.L.H.)
| | - Oskar Gonzalez
- FARMARTEM Group, Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (O.G.); (R.M.A.)
| | - Rosa M. Alonso
- FARMARTEM Group, Department of Analytical Chemistry, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (O.G.); (R.M.A.)
| | - Fernando Luis Hernando
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (X.G.); (U.P.-C.); (A.A.-D.d.C.); (F.L.H.)
| | - Andoni Ramirez-Garcia
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (X.G.); (U.P.-C.); (A.A.-D.d.C.); (F.L.H.)
| | - Aitor Rementeria
- Fungal and Bacterial Biomics Research Group, Department of Immunology, Microbiology and Parasitology, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), Barrio Sarriena s/n, 48940 Leioa, Spain; (X.G.); (U.P.-C.); (A.A.-D.d.C.); (F.L.H.)
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12
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Li ZH, Wang Y, Sun JS, Li JG, Zou KX, Liu H, Li GX, Hu ZZ, Nong LZ, Ning ZX, Wu Y, Du SS. Repellent activities of essential oils rich in sesquiterpenoids from Saussurea amara (L.) DC. and Sigesbeckia pubescens Makino against two stored-product insects. Environ Sci Pollut Res Int 2019; 26:36048-36054. [PMID: 31745787 DOI: 10.1007/s11356-019-06876-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 10/24/2019] [Indexed: 06/10/2023]
Abstract
The essential oils (EOs) from aerial parts of Saussurea amara (L.) DC. (SAEO) and Sigesbeckia pubescens Makino (SPEO) were analyzed for their chemical composition by GC-MS, and their repellent activities against adults of the red flour beetle, Tribolium castaneum Herbst, as well as the booklouse, Liposcelis bostrychophila Badonnel, were evaluated for the first time. Results of GC-MS analysis indicated that both SAEO and SPEO were characterized by high content of sesquiterpenoids (relative content > 70%) including oxygenated sesquiterpenoids. The two oil samples and their major component caryophyllene oxide exerted beneficial repellent effects on T. castaneum and L. bostrychophila at 2 and 4 h post-exposure. At 4 h post-exposure, the PR value of caryophyllene oxide could still reach 92% (class V) against T. castaneum at minimum testing concentration of 3.15 nL/cm2, and this compound was observed to result in the greatest repellency (PR = 100%) against L. bostrychophila at 12.63 nL/cm2. This work confirmed the potent repellent efficacy of SAEO and SPEO for controlling pest damage and suggested their potential to be developed into botanical repellents.
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Affiliation(s)
- Zhi-Hua Li
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Yang Wang
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China
| | - Jian-Sheng Sun
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Ji-Gang Li
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Ke-Xing Zou
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Hong Liu
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Gui-Xiang Li
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Zhi-Zhong Hu
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Li-Zheng Nong
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Zhen-Xing Ning
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Yan Wu
- Technical Center of China Tobacco Guangxi Industrial Co., Ltd, Nanning, 530001, Guangxi, China
| | - Shu-Shan Du
- Beijing Key Laboratory of Traditional Chinese Medicine Protection and Utilization, Faculty of Geographical Science, Beijing Normal University, No. 19 Xinjiekouwai Street, Beijing, 100875, China.
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13
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Wipfler R, McCormick SP, Proctor R, Teresi J, Hao G, Ward T, Alexander N, Vaughan MM. Synergistic Phytotoxic Effects of Culmorin and Trichothecene Mycotoxins. Toxins (Basel) 2019; 11:E555. [PMID: 31547160 PMCID: PMC6833022 DOI: 10.3390/toxins11100555] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/07/2019] [Accepted: 09/16/2019] [Indexed: 02/07/2023] Open
Abstract
Species of the fungus Fusarium cause Fusarium head blight (FHB) of cereal crops and contaminate grain with sesquiterpenoid mycotoxins, including culmorin (CUL) and trichothecenes. While the phytotoxicity of trichothecenes, such as deoxynivalenol (DON), and their role in virulence are well characterized, less is known about the phytotoxicity of CUL and its role in the development of FHB. Herein, we evaluated the phytotoxic effects of purified CUL and CUL-trichothecene mixtures using Chlamydomonas reinhardtii growth and Triticum aestivum (wheat) root elongation assays. By itself, CUL did not affect growth in either system. However, mixtures of CUL with DON, 3-acetyldeoxynivalenol, 15-acetyldeoxynivalenol, or NX-3, but not with nivalenol, inhibited growth in a synergistic manner. Synergistic phytotoxic effects of CUL and DON were also observed on multiple plant varieties and species. The severity of wheat FHB caused by 15 isolates of Fusarium graminearum was negatively correlated with the CUL/DON ratio, but positively correlated with the sum of both CUL and DON. Additionally, during the first week of infection, CUL biosynthetic genes were more highly expressed than the TRI5 trichothecene biosynthetic gene. Furthermore, genomic analysis of Fusarium species revealed that CUL and trichothecene biosynthetic genes consistently co-occur among species closely related to F. graminearum.
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Affiliation(s)
- Rebecca Wipfler
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
| | - Susan P McCormick
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
| | - Robert Proctor
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
| | - Jennifer Teresi
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
| | - Guixia Hao
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
| | - Todd Ward
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
| | - Nancy Alexander
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
| | - Martha M Vaughan
- United States Department of Agriculture, Agricultural Research Services, National Center of Agricultural Utilization Research, Peoria, IL 61604, USA.
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14
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Rodríguez-Chávez JL, Franco-Navarro F, Delgado G. In vitro nematicidal activity of natural and semisynthetic cadinenes from Heterotheca inuloides against the plant-parasitic nematode Nacobbus aberrans (Tylenchida: Pratylenchidae). Pest Manag Sci 2019; 75:1734-1742. [PMID: 30525290 DOI: 10.1002/ps.5294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 11/24/2018] [Accepted: 12/04/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Nacobbus aberrans (Tylenchida: Pratylenchidae) is one of the main plant-parasitic nematodes species that affects crops in Mexico, generating substantial economic losses. Traditionally, the control of the nematodes is carried out using chemical products; however, research efforts are presently focused on the search for new methods for the control of this pest. Natural products derived from plants are an alternative for the control of populations of plant-parasitic nematodes. The genus Heterotheca (Asteraceae) is characterized by containing sesquiterpenes with cadinane skeleton, and some species of this genus exert nematicidal activity. RESULTS We determined the effects of selected Heterotheca inuloides plant metabolites and some semisynthetic derivatives on the hatching of eggs isolated from the gelatinous matrix and infective second-stage juveniles (J2) of the false root-knot nematode N. aberrans using an in vitro experimental model. Among the evaluated compounds, nematodes were more susceptible to hydroxylated and quinone compounds, whereas the remaining compounds showed moderate or no activity. The presence of the hydroxyl group is essential for nematicidal potential, with changes at the hydroxyl group modifying the nematicidal activity. CONCLUSION Flowers of Heterotheca inuloides contain bioactive compounds that showed nematicidal activity against N. aberrans. Here we report the nematicidal activities of cadinenes isolated from the flowers of H. inuloides and their semisynthetic derivatives against the false root-knot nematode N. aberrans. © 2018 Society of Chemical Industry.
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Affiliation(s)
| | - Francisco Franco-Navarro
- Nematologia Agrícola, Programa de Fitopatología, Colegio de Postgraduados-Campus Texcoco, Montecillo, Mexico
| | - Guillermo Delgado
- Instituto de Química, Universidad Nacional Autónoma de México, Coyoacán, Mexico
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15
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Jin M, Xiao Z, Zhang S, Men X, Li X, Zhang B, Zhou T, Hsiao CD, Liu K. Possible involvement of Fas/FasL-dependent apoptotic pathway in α-bisabolol induced cardiotoxicity in zebrafish embryos. Chemosphere 2019; 219:557-566. [PMID: 30553216 DOI: 10.1016/j.chemosphere.2018.12.060] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 12/05/2018] [Accepted: 12/07/2018] [Indexed: 06/09/2023]
Abstract
α-Bisabolol, an unsaturated monocyclic sesquiterpene alcohol, is a common ingredient in many pharmaceuticals and personal care products (PPCPs). Despite being widely used, little is known about its toxic effects on organisms and aquatic environment. In this study, we investigated the developmental toxicity of α-Bisabolol, especially its effects on the cardiac development using zebrafish embryos as a model. Embryos at 4 h post-fertilization (hpf) were exposed to 10, 30, 50, 70, 90, and 100 μM α-Bisabolol until 144 hpf. α-Bisabolol caused phenotypic defects and the most striking one is the heart malformation. Treatment of α-Bisabolol significantly increased the cardiac malformation rate, the SV-BA distance, as well as the pericardial edema area, and reduced heart rate in a concentration-dependent manner. Notably, considerable numbers of apoptotic cells were mainly observed in the heart region of zebrafish treated with α-Bisabolol. Further study on α-Bisabolol induced apoptosis in the zebrafsh heart suggested that an activation of Fas/FasL-dependent apoptotic pathway. Taken together, our study investigated the cardiotoxicity of α-Bisabolol on zebrafish embryonic development and its underlying molecular mechanism, shedding light on the full understanding of α-Bisabolol toxicity on living organisms and its environmental impact.
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Affiliation(s)
- Meng Jin
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China.
| | - Zhixin Xiao
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China
| | - Shanshan Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China
| | - Xiao Men
- CAS Key Laboratory of Biobased Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Songling Road, Laoshan District, Qingdao, 266101, Shandong Province, PR China
| | - Xia Li
- Yinfeng Cryomedicine Technology Co., Ltd, 1109 Gang Xin San Road, Jinan, 250103, Shandong Province, PR China
| | - Baoyue Zhang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China
| | - Tianxia Zhou
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China
| | - Chung-Der Hsiao
- Department of Bioscience Technology, Chung Yuan Christian University, Chung-Li, Taiwan
| | - Kechun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China; Key Laboratory for Drug Screening Technology of Shandong Academy of Sciences, 28789 East Jingshi Road, Jinan, 250103, Shandong Province, PR China.
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16
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de Oliveira BMS, Melo CR, Santos ACC, Nascimento LFA, Nízio DAC, Cristaldo PF, Blank AF, Bacci L. Essential oils from Varronia curassavica (Cordiaceae) accessions and their compounds (E)-caryophyllene and α-humulene as an alternative to control Dorymyrmex thoracius (Formicidae: Dolichoderinae). Environ Sci Pollut Res Int 2019; 26:6602-6612. [PMID: 30623333 DOI: 10.1007/s11356-018-4044-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 12/18/2018] [Indexed: 06/09/2023]
Abstract
The process of urbanization of natural environments has dramatically increased the incidence of pest insects. To control these organisms in urban environments, the last decades have been marked by an increase in the use of synthetic insecticides. However, the intensive and indiscriminate use of synthetic insecticides has provoked a series of environmental problems and human health. In this way, the concern and the searching for environmentally safer alternatives for the control of urban pests is increasing. In the present study we evaluated the lethal and sublethal effects of essential oils (EOs) of six accessions of Varronia curassavica (Jacq.) (Cordiaceae) and their constituents (E)-caryophyllene and α-humulene on the ant Dorymyrmex thoracicus Gallardo, 1916 (Formicidae: Dolichoderinae), a species commonly found in urban environments and which can cause damage to human health. Bioassays of fumigation toxicity and locomotor activity in partially treated arenas were performed. The lethal concentrations to kill 50% of the D. thoracicus population ranged from 0.69 to 2.48 μL/L for EOs and from 3.75 to 1.49 μL/L for the (E)-caryophyllene and α-humulene compounds. The survival of the ants exposed to LC95 of the treatments was reduced over time, ranging from 4.2 to 35.6 h to kill 50% of the D. thoracicus population. In general, EOs of V. curassavica caused repellency and affected the locomotor activity of the ants. Our results indicate that EOs of V. curassavica are a promising source for the control of the urban ant D. thoracicus.
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Affiliation(s)
- Bruna M S de Oliveira
- Universidade Federal de Sergipe, Cidade Universitária Professor José Aloísio de Campos, Av. Marechal Rondon s/n, Rosa Elze, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Carlisson R Melo
- Universidade Federal de Sergipe, Cidade Universitária Professor José Aloísio de Campos, Av. Marechal Rondon s/n, Rosa Elze, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Ane C C Santos
- Universidade Federal de Sergipe, Cidade Universitária Professor José Aloísio de Campos, Av. Marechal Rondon s/n, Rosa Elze, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Luis F A Nascimento
- Universidade Federal de Sergipe, Cidade Universitária Professor José Aloísio de Campos, Av. Marechal Rondon s/n, Rosa Elze, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Daniela A C Nízio
- Universidade Federal de Sergipe, Cidade Universitária Professor José Aloísio de Campos, Av. Marechal Rondon s/n, Rosa Elze, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Paulo F Cristaldo
- Programa de Pós-Graduação em Entomologia Agrícola, Departamento de Agronomia, Universidade Federal Rural de Pernambuco, R. Manoel de Medeiros s/n, Dois Irmãos, Recife, Pernambuco, 52171-900, Brazil
| | - Arie F Blank
- Universidade Federal de Sergipe, Cidade Universitária Professor José Aloísio de Campos, Av. Marechal Rondon s/n, Rosa Elze, São Cristóvão, Sergipe, 49100-000, Brazil
| | - Leandro Bacci
- Universidade Federal de Sergipe, Cidade Universitária Professor José Aloísio de Campos, Av. Marechal Rondon s/n, Rosa Elze, São Cristóvão, Sergipe, 49100-000, Brazil.
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17
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Chen DN, Wu YP, Chen YJ, Liu WJ, Wang JX, He F, Jiang L. Two new stilbenoids from aerial parts of Flickingeria fimbriata. Journal of Asian Natural Products Research 2019; 21:117-122. [PMID: 29063787 DOI: 10.1080/10286020.2017.1392942] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 10/12/2017] [Indexed: 06/07/2023]
Abstract
Two new stilbenoids, named 2,3 -dimethoxyl-7-hydroxyl-1,4-phenanthrenedione (1) and 2-methoxyl-3-methyl-7-hydroxyl-9,10-dihydro-1,4-phenanthrenedione (2), together with two known stilbenoids including densiflorol B (3) and ephemeranthoquinone (4), were isolated from aerial parts of Flickingeria fimbriata (Bl.) Hawkes. The structures of two new compounds were elucidated by extensive spectroscopic analysis, including HRESIMS, 1H and 13C NMR, DEPT, HMBC, COSY, HMQC, NOESY. All the compounds were obtained from this genus for the first time. In addition, they all exhibited moderate cytotoxic activities against HepG2 cell lines.
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Affiliation(s)
- Dan-Na Chen
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou 510006 , China
| | - Ya-Ping Wu
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou 510006 , China
| | - Yue-Juan Chen
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou 510006 , China
| | - Wen-Jian Liu
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou 510006 , China
| | - Jing-Xian Wang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou 510006 , China
| | - Feng He
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou 510006 , China
| | - Lin Jiang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou 510006 , China
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18
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Puckhaber LS, Zheng X, Bell AA, Stipanovic RD, Nichols RL, Liu J, Duke SE. Differences in Active Defense Responses of Two Gossypium barbadense L. Cultivars Resistant to Fusarium oxysporum f. sp. vasinfectum Race 4. J Agric Food Chem 2018; 66:12961-12966. [PMID: 30380850 DOI: 10.1021/acs.jafc.8b05381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A highly virulent race 4 genotype of Fusarium oxysporum f. sp. vasinfectum (Fov) was identified for the first time in the western hemisphere in 2002 in cotton fields in the San Joaquin Valley of California. The Gossypium barbadense L. cotton cultivars 'Seabrook Sea Island 12B2' ('SBSI') and 'Pima S-6' are resistant to Fov race 4. Active defense responses were quantitated by monitoring the accumulation of antimicrobial terpenoids (i.e., phytoalexins) in inoculated stem stele tissue in these cultivars. The increase in the concentration of the most toxic phytoalexins was statistically faster after 24 h in 'SBSI' compared to 'Pima S-6'. The sesquiterpenoid hemigossylic acid lactone, which was observed for the first time in nature, also accumulated in diseased plants. Neither hemigossylic acid lactone nor the disesquiterpenoids gossypol, gossypol-6-methyl ether, and gossypol-6,6'-dimethyl ether showed toxicity to Fov. Segregation of F2 progeny from 'SBSI' × 'Pima S-6' crosses gave a few highly susceptible plants and a few highly resistant plants, indicating separate genes for resistance in the two cultivars.
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Affiliation(s)
- Lorraine S Puckhaber
- Southern Plains Agricultural Research Center, Agricultural Research Service , United States Department of Agriculture , 2765 F and B Road , College Station , Texas 77845 , United States
| | - Xiuting Zheng
- Southern Plains Agricultural Research Center, Agricultural Research Service , United States Department of Agriculture , 2765 F and B Road , College Station , Texas 77845 , United States
| | - Alois A Bell
- Southern Plains Agricultural Research Center, Agricultural Research Service , United States Department of Agriculture , 2765 F and B Road , College Station , Texas 77845 , United States
| | - Robert D Stipanovic
- Southern Plains Agricultural Research Center, Agricultural Research Service , United States Department of Agriculture , 2765 F and B Road , College Station , Texas 77845 , United States
| | - Robert L Nichols
- Cotton, Incorporated , 6399 Weston Parkway , Cary , North Carolina 27513 , United States
| | - Jinggao Liu
- Southern Plains Agricultural Research Center, Agricultural Research Service , United States Department of Agriculture , 2765 F and B Road , College Station , Texas 77845 , United States
| | - Sara E Duke
- Southern Plains Agricultural Research Center, Agricultural Research Service , United States Department of Agriculture , 2765 F and B Road , College Station , Texas 77845 , United States
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19
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Belz RG, Patama M, Sinkkonen A. Low doses of six toxicants change plant size distribution in dense populations of Lactuca sativa. Sci Total Environ 2018; 631-632:510-523. [PMID: 29529439 DOI: 10.1016/j.scitotenv.2018.02.336] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 02/22/2018] [Accepted: 02/27/2018] [Indexed: 12/17/2023]
Abstract
Toxicants are known to have negligible or stimulatory, i.e. hormetic, effects at low doses below those that decrease the mean response of a plant population. Our earlier observations indicated that at such low toxicant doses the growth of very fast- and slow-growing seedlings is selectively altered, even if the population mean remains constant. Currently, it is not known how common these selective low-dose effects are, whether they are similar among fast- and slow-growing seedlings, and whether they occur concurrently with hormetic effects. We tested the response of Lactuca sativa in complete dose-response experiments to six different toxicants at doses that did not decrease population mean and beyond. The tested toxicants were IAA, parthenin, HHCB, 4-tert-octylphenol, glyphosate, and pelargonic acid. Each experiment consisted of 14,400-16,800 seedlings, 12-14 concentrations, 24 replicates per concentration and 50 germinated seeds per replicate. We analyzed the commonness of selective low-dose effects and explored if toxic effects and hormetic stimulation among fast- and slow-growing individuals occurred at the same concentrations as they occur at the population level. Irrespective of the observed response pattern and toxicant, selective low-dose effects were found. Toxin effects among fast-growing individuals usually started at higher doses compared to the population mean, while the opposite was found among slow-growing individuals. Very low toxin exposures tended to homogenize plant populations due to selective effects, while higher, but still hormetic doses tended to heterogenize plant populations. Although the extent of observed size segregation varied with the specific toxin tested, we conclude that a dose-dependent alteration in size distribution of a plant population may generally apply for many toxin exposures.
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Affiliation(s)
- Regina G Belz
- University of Hohenheim, Hans-Ruthenberg Institute, Agroecology Unit, Garbenstraße 13, 70599 Stuttgart, Germany.
| | - Marjo Patama
- University of Hohenheim, Hans-Ruthenberg Institute, Agroecology Unit, Garbenstraße 13, 70599 Stuttgart, Germany; University of Helsinki, Department of Environmental Sciences, Environmental Ecology Unit, Niemenkatu 73, 15140 Lahti, Finland
| | - Aki Sinkkonen
- University of Helsinki, Department of Environmental Sciences, Environmental Ecology Unit, Niemenkatu 73, 15140 Lahti, Finland
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20
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Marić P, Ahel M, Senta I, Terzić S, Mikac I, Žuljević A, Smital T. Effect-directed analysis reveals inhibition of zebrafish uptake transporter Oatp1d1 by caulerpenyne, a major secondary metabolite from the invasive marine alga Caulerpa taxifolia. Chemosphere 2017; 174:643-654. [PMID: 28199941 DOI: 10.1016/j.chemosphere.2017.02.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 01/31/2017] [Accepted: 02/01/2017] [Indexed: 06/06/2023]
Abstract
Caulerpa taxifolia is a marine alga of tropical and subtropical distribution and a well-known invasive species in several temperate regions. Its invasiveness mainly stems from the production of secondary metabolites, some of which are toxic or repellent substances. In this study we investigated the possible inhibitory effects of C. taxifolia secondary metabolites on the activity of two zebrafish (Danio rerio) uptake transporters that transport organic anions (Oatp1d1) and cations (Oct1). Both transporters were transiently transfected and overexpressed in human embryonic kidney HEK293T cells. Transport activity assays using lucifer yellow (LY) and 4-(4-(dimethylamino)styryl)-N-methylpyridinium iodide (ASP+) as model substrates were applied for the determination of Oatp1d1 and Oct1 interactors. A two-step Effect-Directed Analysis (EDA) procedure was applied for the separation and identification of compounds. We identified caulerpenyne (CYN) as the major metabolite in C. taxifolia and reveal its potent inhibitory effect towards zebrafish Oatp1d1 as well as weak effect on zebrafish Oct1 transport. The observed effect was confirmed by testing CYN purified from C. taxifolia, resulting in an IC50 of 17.97 μM, and a weak CYN interaction was also determined for the zebrafish Oct1 transporter. Finally, using Michaelis-Menten kinetics experiments, we identified CYN as a non-competitive inhibitor of the zebrafish Oatp1d1. In conclusion, this study describes a novel mechanism of biological activity in C. taxifolia, shows that CYN was a potent non-competitive inhibitor of zebrafish Oatp1d1, and demonstrates that EDA can be reliably used for characterization of environmentally relevant complex biological samples.
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Affiliation(s)
- P Marić
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, 10 000 Zagreb, Croatia.
| | - M Ahel
- Laboratory for Analytical Chemistry and Biogeochemistry of Organic Compounds, Division for Marine and Environmental Research, Ruđer Bošković Institute, 10 000 Zagreb, Croatia.
| | - I Senta
- Laboratory for Analytical Chemistry and Biogeochemistry of Organic Compounds, Division for Marine and Environmental Research, Ruđer Bošković Institute, 10 000 Zagreb, Croatia.
| | - S Terzić
- Laboratory for Analytical Chemistry and Biogeochemistry of Organic Compounds, Division for Marine and Environmental Research, Ruđer Bošković Institute, 10 000 Zagreb, Croatia.
| | - I Mikac
- Laboratory for Analytical Chemistry and Biogeochemistry of Organic Compounds, Division for Marine and Environmental Research, Ruđer Bošković Institute, 10 000 Zagreb, Croatia.
| | - A Žuljević
- Laboratory for Benthos, Institute of Oceanography and Fisheries, 21 000 Split, Croatia.
| | - T Smital
- Laboratory for Molecular Ecotoxicology, Division for Marine and Environmental Research, Ruđer Bošković Institute, 10 000 Zagreb, Croatia.
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21
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Huyen LT, Hang DT, Nhie NX, Tai BH, Anh HLT, Quang TH, Yen PH, Van Minh C, Van Dau N, Van Kiem P. Sesquiterpene Quinones and Diterpenes from Smenospongia cerebriformis and Their Cytotoxic Activity. Nat Prod Commun 2017; 12:477-478. [PMID: 30520574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
Using various chromatographic methods, one new sesquiterpene quinone named smenohaimien F (1) and five known, neodactyloquinone (2), dactyloquinone C (3), dactyloquinone D (4), isoamijiol (5), and amijiol (6), were isolated from the marine sponge Smenospongia cerebriformis Duchassaing & Michelotti, 1864. Their structures were elucidated by ID-, 2D-NMR spectroscopic analysis, HR-ESI-MS, and by comparing with the NMR data reported in the literature. The cytotoxic activities of the all compounds were evaluated on five human cancer cell lines, LU-1, HL-60, SK-Mel-2, HepG-2, and MCF-7. Compound 4 was found to exhibit significant cytotoxic activities on all tested human cancer cell lines with IC50 values ranging from 0.7 to 1.6 μg/mL.
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22
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Xie LH, Johnson TO, Weina PJ, Si Y, Haeberle A, Upadhyay R, Wong E, Li Q. Risk Assessment and Therapeutic Indices of Artesunate and Artelinate in Plasmodium berghei–Infected and Uninfected Rats. Int J Toxicol 2016; 24:251-64. [PMID: 16126619 DOI: 10.1080/10915810591007229] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Artesunate (AS) is being developed as a potential agent for the treatment of severe and complicated malaria. A risk assessment of the therapeutic index and related hematological changes of AS and artelinate (AL) following daily intravenous injection for 3 days was conducted in Plasmodium berghei–infected and uninfected rats. The minimum doses of AS and AL for parasitemia suppression were 2.3 and 2.5 mg/kg, respectively, and the suppressive doses for half parasitemia (SD50) were 7.4 and 8.6 mg/kg, respectively. The maximum tolerated dose (MTD) for AS was 240 mg/kg with a therapeutic index of 32.6. The MTD for AL was 80 mg/kg with a therapeutic index of 9.3. Hematological changes were studied on days 1 and 8 after the final dosing. In both AS- and AL-treated rats, dose-dependent and rapidly reversible hematological changes (significant reductions in RBC, HCT, Hb, and reticulocyte levels) were seen in the peripheral blood. Bone marrow evaluation revealed a statistically significant reduction in the myeloid/erythroid ratio only at the highest dose of AS (240 mg/kg), albeit still within the normal ratio range (1.0–1.5:1.0). Looking at the respective therapeutic indices the authors have concluded that AS is much safer than AL. Both drugs induced hematological changes in rats that parallel the dose-dependent, reversible anemia and reticulocytopenia previously reported in animals and humans. However, no significant bone marrow depression was seen for either agent.
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Affiliation(s)
- Lisa H Xie
- Division of Experimental Therapeutics, Walter Reed Army Institute of Research, Silver Spring, Maryland 20307-5100, USA
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23
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Judzentiene A, Garjonyte R. Compositional Variability and Toxic Activity of Mugwort (Artemisia vulgaris) Essential Oils. Nat Prod Commun 2016; 11:1353-1356. [PMID: 30807041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023] Open
Abstract
The compositional variability of the essential oils of aerial parts of mugwort (Artemisia vulgaris L.), collected from fifteen wild populations in Lithuania is detailed. The most predominant components were davanones (13.8-45.5%, six oils), germacrene D (9.1-30.5%, four oils), 1,8-cineole (16.4%, one oil), camphor (18.9%, one oil), trans-thujone (8.9 and 10.9%, two oils) and cis-chrysanthenyl acetate (10.4%, one oil). To the best of our knowledge, the davanone chemotype for A. vulgaris oils is described for the first time. The toxicity of the mugwort essential oils was determined using brine shrimp (Anemia sp.) assay. LC0 values (10.3-23.1 μg/mL) obtained for the oils after 24 h of exposure revealed that the oils containing appreciable amounts of germacrene D, 1,8-cineole, camphor and davanone were notably toxic.
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24
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Tyagi V, Alwaseem H, O'Dwyer KM, Ponder J, Li QY, Jordan CT, Fasan R. Chemoenzymatic synthesis and antileukemic activity of novel C9- and C14-functionalized parthenolide analogs. Bioorg Med Chem 2016; 24:3876-3886. [PMID: 27396927 PMCID: PMC5083853 DOI: 10.1016/j.bmc.2016.06.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2016] [Revised: 06/09/2016] [Accepted: 06/13/2016] [Indexed: 12/23/2022]
Abstract
Parthenolide is a naturally occurring terpene with promising anticancer properties, particularly in the context of acute myeloid leukemia (AML). Optimization of this natural product has been challenged by limited opportunities for the late-stage functionalization of this molecule without affecting the pharmacologically important α-methylene-γ-lactone moiety. Here, we report the further development and application of a chemoenzymatic strategy to afford a series of new analogs of parthenolide functionalized at the aliphatic positions C9 and C14. Several of these compounds were determined to be able to kill leukemia cells and patient-derived primary AML specimens with improved activity compared to parthenolide, exhibiting LC50 values in the low micromolar range. These studies demonstrate that different O-H functionalization chemistries can be applied to elaborate the parthenolide scaffold and that modifications at the C9 or C14 position can effectively enhance the antileukemic properties of this natural product. The C9-functionalized analogs 22a and 25b were identified as the most interesting compounds in terms of antileukemic potency and selectivity toward AML versus healthy blood cells.
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Affiliation(s)
- Vikas Tyagi
- Department of Chemistry, University of Rochester, Rochester, NY 14627, United States
| | - Hanan Alwaseem
- Department of Chemistry, University of Rochester, Rochester, NY 14627, United States
| | - Kristen M O'Dwyer
- Department of Hematology/Oncology, University of Rochester, Rochester, NY 14627, United States
| | - Jessica Ponder
- Division of Hematology, University of Colorado, Aurora, CO 80045, United States; Division of Toxicology, University of Colorado, Aurora, CO 80045, United States
| | - Qi Ying Li
- Department of Chemistry, University of Rochester, Rochester, NY 14627, United States
| | - Craig T Jordan
- Division of Hematology, University of Colorado, Aurora, CO 80045, United States
| | - Rudi Fasan
- Department of Chemistry, University of Rochester, Rochester, NY 14627, United States.
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25
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Taleb RI, Najm P, Shebaby W, Boulos JC, Demirdjian S, Hariri E, El-Sibai M, Daher C, Mroueh M. β-2-himachalen-6-ol: A novel anticancer sesquiterpene unique to the Lebanese wild carrot. J Ethnopharmacol 2016; 190:59-67. [PMID: 27240746 DOI: 10.1016/j.jep.2016.05.053] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Revised: 03/03/2016] [Accepted: 05/21/2016] [Indexed: 06/05/2023]
Abstract
Daucus carota ssp. carota, also known as wild carrot, is a commonly used herb in Lebanese folk medicine to treat several ailments including cancer. Previous studies in our laboratories showed that the Daucus carota oil extract (DCOE) and subsequent fractions exhibit antioxidant, anti-inflammatory and anti-cancer activities. In this study, we report the isolation and identification of the major compound responsible for the anti-cancer activity of DCOE along with the mechanism of action involved. GC-MS and NMR spectroscopy revealed the identity of the major compound as β-2-himachalen-6-ol, a novel sesquiterpene unique to the Lebanese wild carrot. β-2-Himachalen-6-ol demonstrated potent anti-cancer activity against B16F-10, Caco-2, MB-MDA-231, A549 and SF-268 cancer cells (IC50 13-4µg/ml; 58-18µM), with SF-268 cells being the most sensitive. The sesquiterpene was shown to induce cell death through apoptosis (flow cytometry), decrease 2D cell motility (wound healing assay) and 3D invasion, as well as increase cell adhesion in SF-268 cells. Additionally, β-2-himachalen-6-ol showed very low toxicity in mice with an LD50>6000mg/kg body weight. In conclusion, the present data demonstrate that β-2-himachalen-6-ol is a potential multi-mechanistic chemotherapeutic drug with high potency and safety.
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Affiliation(s)
- Robin I Taleb
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon.
| | - Paul Najm
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon
| | - Wassim Shebaby
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon
| | - Joelle C Boulos
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon
| | - Sally Demirdjian
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon
| | - Essa Hariri
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon
| | - Mirvat El-Sibai
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon
| | - Costantine Daher
- Department of Natural Sciences, Lebanese American University, Byblos 1102 2801, Lebanon
| | - Mohamad Mroueh
- School of Pharmacy, Lebanese American University, Byblos 1102 2801, Lebanon
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26
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Abstract
In a subchronic toxicity study, administration of β-caryophyllene (BCP) oil by oral gavage to Wistar rats at dosages of 0, 150, 450, or 700 mg/kg/d for 90 days, including a 21-day recovery period, did not produce any significant toxicologic manifestations. The study design also included a 28-day interim sacrifice in the control and high-dose groups. The BCP oil test article was well tolerated as evidenced by the absence of major treatment-related changes in the general condition and appearance of the rats, neurobehavioral end points, growth, feed and water intake, ophthalmoscopic examinations, routine hematology and clinical chemistry parameters, urinalysis, and necropsy findings. The no observed adverse effect level was the highest dosage level administered of 700 mg/kg body weight/d for both male and female rats. The study was conducted as part of an investigation to examine the safety of BCP oil for its proposed use in medical food products.
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Affiliation(s)
- D Schmitt
- ToxStrategies, Inc, Naperville, IL, USA
| | - R Levy
- Primus Pharmaceuticals, Inc, Scottsdale, AZ, USA
| | - B Carroll
- Primus Pharmaceuticals, Inc, Scottsdale, AZ, USA
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27
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Sary HG, Singab ANB, Orabi KY. New Cytotoxic Guaianolides from Centaurea aegyptiaca. Nat Prod Commun 2016; 11:711-714. [PMID: 27534098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023] Open
Abstract
The ethanol extract of Centaurea aegyptiaca aerial parts afforded two new chlorinated bioactive guaianolides, cenegyptin A (1) and cenegyptin B (2), in addition to four known sesquiterpenes (3 - 6). Their identities were established on the basis of their spectral data. The cytotoxicity (IC50, μM) of compounds 1 - 6 were evaluated against hepatic (HEPG2) and laryngeal (HEP2) carcinoma cell lines in comparison with normal fibroblasts (BHK). Compound 1 showed cytotoxic activity against HEPG2 and HEP2 with IC50 values of 7.2 ± 0.04 and 7.5 ± 0.02, respectively. However, compound 2 exhibited only a limited toxicity against both cell lines.
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28
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Lu L, Qi Z, Li Q, Wu W. Validation of the Target Protein of Insecticidal Dihydroagarofuran Sesquiterpene Polyesters. Toxins (Basel) 2016; 8:toxins8030079. [PMID: 26999207 PMCID: PMC4810224 DOI: 10.3390/toxins8030079] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 03/08/2016] [Accepted: 03/14/2016] [Indexed: 12/25/2022] Open
Abstract
A series of insecticidal dihydroagarofuran sesquiterpene polyesters were isolated from the root bark of Chinese bittersweet (Celastrus angulatus Max). A previous study indicated that these compounds affect the digestive system of insects, and aminopeptidase N3 and V-ATPase have been identified as the most putative target proteins by affinity chromatography. In this study, the correlation between the affinity of the compounds to subunit H and the insecticidal activity or inhibitory effect on the activity of V-ATPase was analyzed to validate the target protein. Results indicated that the subunit H of V-ATPase was the target protein of the insecticidal compounds. In addition, the possible mechanism of action of the compounds was discussed. The results provide new ideas for developing pesticides acting on V-ATPase of insects.
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Affiliation(s)
- Lina Lu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling 712100, Shaanxi, China.
| | - Zhijun Qi
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling 712100, Shaanxi, China.
- Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Yangling 712100, Shaanxi, China.
| | - Qiuli Li
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling 712100, Shaanxi, China.
| | - Wenjun Wu
- Institute of Pesticide Science, College of Plant Protection, Northwest A & F University, Yangling 712100, Shaanxi, China.
- Key Laboratory of Botanical Pesticide R & D in Shaanxi Province, Yangling 712100, Shaanxi, China.
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29
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Zhao X, Xi X, Hu Z, Wu W, Zhang J. Exploration of Novel Botanical Insecticide Leads: Synthesis and Insecticidal Activity of β-Dihydroagarofuran Derivatives. J Agric Food Chem 2016; 64:1503-1508. [PMID: 26852924 DOI: 10.1021/acs.jafc.5b05782] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The discovery of novel leads and new mechanisms of action is of vital significance to the development of pesticides. To explore lead compounds for botanical insecticides, 77 β-dihydroagarofuran derivatives were designed and synthesized. Their structures were mainly confirmed by (1)H NMR, (13)C NMR, DEPT-135°, IR, MS, and HRMS. Their insecticidal activity was evaluated against the third-instar larvae of Mythimna separata Walker, and the results indicated that, of these derivatives, eight exhibited more promising insecticidal activity than the positive control, celangulin-V. Particularly, compounds 5.7, 6.6, and 6.7 showed LD50 values of 37.9, 85.1, and 21.1 μg/g, respectively, which were much lower than that of celangulin-V (327.6 μg/g). These results illustrated that β-dihydroagarofuran ketal derivatives can be promising lead compounds for developing novel mechanism-based and highly effective botanical insecticides. Moreover, some newly discovered structure-activity relationships are discussed, which may provide some important guidance for insecticide development.
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Affiliation(s)
- Ximei Zhao
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
| | - Xin Xi
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
| | - Zhan Hu
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
| | - Wenjun Wu
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province , Yangling, Shaanxi 712100, People's Republic of China
| | - Jiwen Zhang
- College of Science, Northwest A&F University , Yangling, Shaanxi 712100, People's Republic of China
- Key Laboratory of Botanical Pesticide R&D in Shaanxi Province , Yangling, Shaanxi 712100, People's Republic of China
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30
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Dampc A, Luczkiewicz M. Labrador tea--the aromatic beverage and spice: a review of origin, processing and safety. J Sci Food Agric 2015; 95:1577-1583. [PMID: 25156477 DOI: 10.1002/jsfa.6889] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 07/10/2014] [Accepted: 08/17/2014] [Indexed: 06/03/2023]
Abstract
Labrador tea is a name for the dried leaves of Rhododendron groenlandicum, R. tomentosum or R. neoglandulosum (family Ericaceae, previously genus Ledum) as well as for the beverage native to North America, which is made from them. The above species are rich in the essential oil, which gives a conifer aroma to the tisane. Labrador tea is a valuable source of ascorbic acid, with tonic, improving digestion and relaxing activity. However, this beverage should not be drunk more than once daily because of the ledol and grayanotoxin toxicity. The common recipe for making Labrador tea is to add one teaspoonful of dried leaves to one cup of boiling water and to brew for 5 min. It is often sweetened or enriched with other flavors. Additionally, Labrador tea dried leaves are used to spice meat, soups, sauces, salads, beer, cakes and other dishes. In agriculture, its insecticidal properties can be useful for controlling pests.
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Affiliation(s)
- Anna Dampc
- Department of Pharmacognosy, Medical University of Gdansk, 80-416, Gdansk, Poland
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31
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Xu Y, Furutani S, Ihara M, Ling Y, Yang X, Kai K, Hayashi H, Matsuda K. Meroterpenoid Chrodrimanins Are Selective and Potent Blockers of Insect GABA-Gated Chloride Channels. PLoS One 2015; 10:e0122629. [PMID: 25902139 PMCID: PMC4406737 DOI: 10.1371/journal.pone.0122629] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Accepted: 02/23/2015] [Indexed: 12/17/2022] Open
Abstract
Meroterpenoid chrodrimanins, produced from Talaromyces sp. YO-2, are known to paralyze silkworm (Bombyx mori) larvae, but their target is unknown. We have investigated the actions of chrodrimanin B on ligand-gated ion channels of silkworm larval neurons using patch-clamp electrophysiology. Chrodrimanin B had no effect on membrane currents when tested alone at 1 μM. However, it completely blocked the γ-aminobutyric acid (GABA)-induced current and showed less pronounced actions on acetylcholine- and L-glutamate-induced currents, when delivered at 1 μM for 1 min prior to co-application with transmitter GABA. Thus, chrodrimanins were also tested on a wild-type isoform of the B. mori GABA receptor (GABAR) RDL using two-electrode voltage-clamp electrophysiology. Chrodrimanin B attenuated the peak current amplitude of the GABA response of RDL with an IC50 of 1.66 nM. The order of the GABAR-blocking potency of chrodrimanins B > D > A was in accordance with their reported insecticidal potency. Chrodrimanin B had no open channel blocking action when tested at 3 nM on the GABA response of RDL. Co-application with 3 nM chrodrimanin B shifted the GABA concentration response curve to a higher concentration and further increase of chrodrimanin B concentration to10 nM; it reduced maximum current amplitude of the GABA response, pointing to a high-affinity competitive action and a lower affinity non-competitive action. The A282S;T286V double mutation of RDL, which impairs the actions of fipronil, hardly affected the blocking action of chrodrimanin B, indicating a binding site of chrodrimanin B distinct from that of fipronil. Chrodrimanin B showed approximately 1,000-fold lower blocking action on human α1β2γ2 GABAR compared to RDL and thus is a selective blocker of insect GABARs.
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Affiliation(s)
- Yan Xu
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P.R. China
| | - Shogo Furutani
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kinki University, 3327–204 Nakamachi, Nara 631–8505, Japan
| | - Makoto Ihara
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kinki University, 3327–204 Nakamachi, Nara 631–8505, Japan
| | - Yun Ling
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P.R. China
| | - Xinling Yang
- Department of Applied Chemistry, College of Science, China Agricultural University, Beijing 100193, P.R. China
| | - Kenji Kai
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1–1 Gakuen-cho, Naka-ku, Sakai, Osaka 599–8531, Japan
| | - Hideo Hayashi
- Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1–1 Gakuen-cho, Naka-ku, Sakai, Osaka 599–8531, Japan
| | - Kazuhiko Matsuda
- Department of Applied Biological Chemistry, Faculty of Agriculture, Kinki University, 3327–204 Nakamachi, Nara 631–8505, Japan
- * E-mail:
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Wamalwa L, Cheseto X, Ouna E, Kaplan F, Maniania N, Machuka J, Torto B, Ghislain M. Toxic Ipomeamarone accumulation in healthy parts of Sweetpotato (Ipomoea batatas L. Lam) storage roots upon infection by Rhizopus stolonifer. J Agric Food Chem 2015; 63:335-42. [PMID: 25418792 PMCID: PMC4298358 DOI: 10.1021/jf504702z] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Furanoterpenoid accumulation in response to microbial attack in rotting sweetpotatoes has long been linked to deaths and lung edema of cattle in the world. However, it is not known whether furanoterpenoid ipomeamarone accumulates in the healthy-looking parts of infected sweetpotato storage roots. This is critical for effective utilization as animal feed and assessment of the potential negative impact on human health. Therefore, we first identified the fungus from infected sweetpotatoes as a Rhizopus stolonifer strain and then used it to infect healthy sweetpotato storage roots for characterization of furanoterpenoid content. Ipomeamarone and its precursor, dehydroipomeamarone, were identified through spectroscopic analyses, and detected in all samples and controls at varying concentrations. Ipomeamarone concentration was at toxic levels in healthy-looking parts of some samples. Our study provides fundamental information on furanoterpenoids in relation to high levels reported that could subsequently affect cattle on consumption and high ipomeamarone levels in healthy-looking parts.
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Affiliation(s)
- Lydia
N. Wamalwa
- International
Potato Centre, P.O. Box 25171-00603, Nairobi, Kenya
- Kenyatta
University, P.O. Box
43844-00100, Nairobi, Kenya
| | - Xavier Cheseto
- International
Centre of Insect Physiology and Ecology (ICIPE)-African Insect Science
for Food and Health, P.O. Box 30772-00100, Nairobi, Kenya
| | - Elizabeth Ouna
- International
Centre of Insect Physiology and Ecology (ICIPE)-African Insect Science
for Food and Health, P.O. Box 30772-00100, Nairobi, Kenya
| | - Fatma Kaplan
- Department
of Biology, University of Florida, Gainesville, Florida 32611, United States
- Kaplan Schiller
Research, LLC., Gainesville, Florida 32604, United
States
| | - Nguya
K. Maniania
- International
Centre of Insect Physiology and Ecology (ICIPE)-African Insect Science
for Food and Health, P.O. Box 30772-00100, Nairobi, Kenya
| | - Jesse Machuka
- Kenyatta
University, P.O. Box
43844-00100, Nairobi, Kenya
| | - Baldwyn Torto
- International
Centre of Insect Physiology and Ecology (ICIPE)-African Insect Science
for Food and Health, P.O. Box 30772-00100, Nairobi, Kenya
| | - Marc Ghislain
- International
Potato Centre, P.O. Box 25171-00603, Nairobi, Kenya
- E-mail: . Phone: 254 (020) 4223641. Fax: 254 (020 4223600)
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Efremenkova OV, Vasiljeva BF, Zenkova VA, Korolev AM, Lusikov YN, Efimenko TA, Malanicheva IA, Mirchink EP, Isakova EB, Bilanenko EN, Kamzolkina OV. [Antimicrobial Properties of Eremoxylarin A Produced by Ascomycete of Sordariomycetes in Submerged Culture]. Antibiot Khimioter 2015; 60:23-28. [PMID: 27141643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The fungal strain INA 01108 producing antibiotic substances with broad spectrum of antibacterial activity was isolated from the natural environment. By the morphological characteristics and DNA analysis it was shown to belong to Ascomycetes of Sordariomycetes. In submerged culture the strain produced at least four antibiotics. The major component of them was identified as eremophilane-type sesquiterpene eremoxylarin A. Eremoxylarin A is effective in vitro against grampositive bacteria, including methicillin-resistant Staphylococcus aureus (MRSA) and vancomycin group glycopeptide antibiotics resistant Leuconostoc mesenteroides VKPM B-4177. The efficacy and toxicity of eremoxylarin A was determined on a murine staphylococcal sepsis model. The dose of 6.25 mg/kg provided 100% recovery and survival of the animals, while the dose of 3.12 mg/kg was close to the ED50. The chemical structure of eremoxylarin A allows to modify the antibiotic and such studies may be relevant to design a less toxic derivative without loss of the valuable antimicrobial properties.
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Masi M, Meyer S, Cimmino A, Clement S, Black B, Evidente A. Pyrenophoric acids B and C, two new phytotoxic sesquiterpenoids produced by Pyrenophora semeniperda. J Agric Food Chem 2014; 62:10304-11. [PMID: 25264583 DOI: 10.1021/jf5035515] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Two new phytotoxic sesquiterpenoid acids, named pyrenophoric acids B and C, were isolated together with the related pyrenophoric and abscisic acids from solid Bromus tectorum (cheatgrass) seed culture of the seed pathogen Pyrenophora semeniperda. This fungus has been proposed as a mycoherbicide for biocontrol of cheatgrass (Bromus tectorum), a Eurasian annual grass that has become invasive in rangelands and is also a serious agricultural weed in the western U.S. Pyrenophoric acids B and C were characterized by spectroscopic methods (NMR and HR ESIMS) as (2Z,4E)-5-[(1R*,4R*,6R*)-1,4-dihydroxy-2,2,6-trimethylcyclohexyl]-3-methylpenta-2,4-dienoic and (2Z,4E)-5-[(1S*,3S*,4R*,6S*)-3,4-dihydroxy-2,2,6-trimethylcyclohexyl]-3-methylpenta-2,4-dienoic acids, respectively. Cytochalasins A, B, F, and Z3, as well as deoxaphomin and pyrenophoric acid, all previously isolated from P. semeniperda grown on wheat seed, were also isolated from cheatgrass seed culture. In a cheatgrass seedling bioassay at 10(-3) M, pyrenophoric acid B showed higher coleoptile toxicity than pyrenophoric acid, while pyrenophoric acid C showed lower phytotoxicity. Abscisic acid was by far the most active compound.
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Affiliation(s)
- Marco Masi
- Department of Plant and Wildlife Sciences, Brigham Young University , Provo, Utah 84601, United States
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Abstract
The expression of the Ca(2) (+)-sensing receptor (Casr) in the endocrine gland known as the corpuscle of Stannius (CS) regulates the secretion of the hypocalcemic hormone stanniocalcin-1 (STC1) to inhibit gill Ca(2) (+) uptake. Although numerous studies have reported the branchial expression of Casr and Stc1, the functions of these proteins in gills have not been elucidated yet. On the basis of recent findings regarding the autocrine/paracrine functions of STC1 in mammalian models, we proposed the hypothesis that branchial CaSR has an in situ 'sensing' function to regulate STC1 that maintains local Ca(2) (+) homeostasis. In this study, we investigated Casr-mediated signaling and its regulation of Stc1 and cyclooxygenase-2 (Cox2) expression/function using a primary gill-cell culture model. The biochemical responses of gill cells isolated from Japanese eels to an increasing concentration of extracellular Ca(2) (+) (0.1-1 mM) were tested. This stimulation led to a transient increase in phosphatidylcholine-phospholipase C (PC-PLC) activity, followed by activation of ERK and inositol 1,4,5-trisphosphate-Ca(2) (+)/calmodulin-dependent protein kinase 2 (CaMK2) signaling pathways. Cotreatment with the calcimimetic R467 caused synergistic effects on Ca(2) (+)-stimulated PC-PLC activity, ERK signaling, and CaMK2 signaling. The activation of the CaSR-PLC-ERK pathway was associated with increased expression levels of Stc1 and Cox2 as confirmed by the inhibition of Erk using a chemical inhibitor, PD98059. Functionally, Ca(2) (+)/R-467 pretreatment was found to protect cells from thapsigargin-induced cell death. Inhibition of COX2 activity using NS398 abolished this protection, while transduction of STC1 lentiviral particles in the gill cells increased the protective effects. Collectively, our data revealed the expression of functional CaSR in gill tissues. The identification of the CaSR-STC1/COX2-mediated protective pathway in gill cells sheds light on a possible cellular protective mechanism against an increase in intracellular Ca(2) (+) levels associated with transepithelial Ca(2) (+) transport.
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Affiliation(s)
- J Gu
- Department of BiologyCroucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - A Y S Law
- Department of BiologyCroucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - B H Y Yeung
- Department of BiologyCroucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
| | - C K C Wong
- Department of BiologyCroucher Institute for Environmental Sciences, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China
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Lv C, Zheng ZL, Miao F, Geng HL, Zhou L, Liu LP. New dihydro-β-agarofuran sesquiterpenes from Parnassia wightiana wall: isolation, identification and cytotoxicity against cancer cells. Int J Mol Sci 2014; 15:11111-25. [PMID: 24955789 PMCID: PMC4100202 DOI: 10.3390/ijms150611111] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 06/01/2014] [Accepted: 06/04/2014] [Indexed: 11/16/2022] Open
Abstract
Five new (4-8) and three known (1-3) dihydro-β-agarofuran sesquiterpene polyesters were isolated from the whole plants of Parnassia wightiana. The structures of all compounds were elucidated through spectroscopic analysis including 2D-NMR and HR-MS. The absolute configuration of these compounds was established by X-ray diffraction analysis, comparison of NOESY spectra and biogenetic means. The cytotoxities of compounds 2-8 were evaluated in vitro against HL-60, SMMC-7721, A549, MCF-7 and SW480 cell lines. Compounds 5-7 exhibited the highest activities with IC₅₀ values of 11.8-30.1 μM in most cases. The SAR revealed that the introduction of hydroxyl group was able to significantly improve the activities of the compounds for most of the cell lines.
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Affiliation(s)
- Chao Lv
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - Zuo-Lue Zheng
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - Fang Miao
- College of Life Science, Northwest A&F University, Yangling 712100, China.
| | - Hui-Ling Geng
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - Le Zhou
- College of Science, Northwest A&F University, Yangling 712100, China.
| | - La-Ping Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
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Abstract
Abstract
The metabolites of two different Ripartites species, R. tricholoma (A. & S. ex Fr.) Karst. and R. metrodii Huijsm. were investigated. Three new sesquiterpenes were isolated from three different strains. In addition, the strains produced 13-oxo-9(Z),11(E)-octadecadienoic acid, psathyrellon A, 5-desoxyilludosin, an illudane (previously isolated from a Bovista sp.) 96042 and demethylovalicin, five known compounds.
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Affiliation(s)
- Daniela Weber
- Institut für Biotechnologie und Wirkstoff-Forschung IBWF e.V., Erwin-Schrödinger-Strasse 56, D-67663 Kaiserslautern, Germany
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Abstract
Phytotoxicity of parthenin, a sesquiterpene lactone, was evaluated against four weedy species (Amaranthus viridis, Cassia occidentalis, Echinochloa crus-galli, and Phalaris minor) through a series of experiments conducted under laboratory or greenhouse conditions to assess its herbicidal potential. Under laboratory conditions, parthenin (0.5 - 2 mm) severely reduced seedling growth (root and shoot) and dry weight of test weeds. However, the effect was greater on root growth. Parthenin (1 mm) suppressed the mitotic activity in the onion root tip cells that could possibly be responsible for the reduction in seedling growth. Both pre- and post-emergent application of parthenin caused a significant loss of chlorophyll pigments and affected photosynthesis. Parthenin (≥1 mm) caused an excessive electrolyte leakage in the plant tissues which was light-dependent. The root inhibition was associated with swelling and blackening of the root tip, shriveling and damage to the epidermal tissue and non-formation of root hairs. The study concludes that parthenin possesses weed-suppressing potential (both pre- and post-).
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Affiliation(s)
- Daizy R Batish
- Department of Botany, Panjab University, Chandigarh 160 014, India.
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Gil da Costa RM, Oliveira PA, Bastos MMSM, Lopes CC, Lopes C. Ptaquiloside-induced early-stage urothelial lesions show increased cell proliferation and intact β-catenin and E-cadherin expression. Environ Toxicol 2014; 29:763-769. [PMID: 22859263 DOI: 10.1002/tox.21803] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Revised: 07/05/2012] [Accepted: 07/15/2012] [Indexed: 06/01/2023]
Abstract
Bracken (Pteridium aquilinum) is a carcinogenic plant whose main toxin, ptaquiloside, causes cancer in farm and laboratory animals. Ptaquiloside contaminates underground waters as well as meat and milk from bracken-grazing animals and is a suspected human carcinogen. A better understanding of the underlying mechanisms of carcinogenesis can be achieved by studying the early stages of this process. Unfortunately, most research on ptaquiloside has focused on the late, malignant, lesions, so the early changes of ptaquiloside-induced carcinogenesis remain largely unknown. This study aims to characterize early-stage ptaquiloside-induced urinary bladder lesions both morphologically and immunohistochemically. 12 male CD-1 mice were administered 0.5 mg ptaquiloside intraperitoneally, weekly, for 15 weeks, followed by 15 weeks without treatment. 12 control animals were administered saline. Bladders were tested immunohistochemically for antibodies against a cell proliferation marker (Ki-67), and two cell adhesion markers (E-cadherin and β-catenin). Two exposed animals died during the work. Six ptaquiloside-exposed mice developed low-grade and two developed high grade urothelial dysplasia. No lesions were detected on control animals. Significantly, increased (p < 0.05) Ki-67 labeling indices were found on dysplastic urothelium from ptaquiloside-exposed mice, compared with controls. No differences were found concerning E-cadherin and β-catenin expression. Early-stage ptaquiloside-induced urothelial lesions show increased cell proliferation but there is no evidence for reduced intercellular adhesiveness, though this may be a later event in tumor progression.
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Affiliation(s)
- Rui M Gil da Costa
- Pathology and Molecular Immunology Department, Abel Salazar Institute for Biomedical Sciences (ICBAS), University of Porto, Largo Prof. Abel Salazar 2, 4099-003-Porto, Portugal; Chemical Engineering Department, Engineering Faculty, LEPAE, University of Porto, Rua Dr. Roberto Frias s/n, 4200-465-Porto, Portugal
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van den Heever JP, Thompson TS, Curtis JM, Ibrahim A, Pernal SF. Fumagillin: an overview of recent scientific advances and their significance for apiculture. J Agric Food Chem 2014; 62:2728-37. [PMID: 24621007 DOI: 10.1021/jf4055374] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Fumagillin is a potent fungal metabolite first isolated from Aspergillus fumigatus. It is widely used in apiculture and human medicine against a variety of microsporidian fungal infections. It has been the subject of research in cancer treatments by employing its angiogenesis inhibitory properties. The toxicity of fumagillin has limited its use for human applications and spurred the development of analogues using structure-activity relationships relating to its angiogenesis properties. These discoveries may hold the key to the development of alternative chemical treatments for use in apiculture. The toxicity of fumagillin to humans is important for beekeeping, because any residues remaining in hive products pose a direct risk to the consumer. The analytical methods published to date measure fumagillin and its decomposition products but overlook the dicyclohexylamine counterion of the salt form widely used in apiculture.
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Affiliation(s)
- Johan P van den Heever
- Alberta Agriculture and Rural Development , Animal Health and Assurance Division, Agri-Food Laboratories Branch, 6909-116 Street, Edmonton, Alberta, Canada T6H 4P2
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Prota N, Bouwmeester HJ, Jongsma MA. Comparative antifeedant activities of polygodial and pyrethrins against whiteflies (Bemisia tabaci) and aphids (Myzus persicae). Pest Manag Sci 2014; 70:682-688. [PMID: 23868321 DOI: 10.1002/ps.3610] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 06/03/2013] [Accepted: 07/18/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Polygodial, a sesquiterpene dialdehyde of the drimane family, has been shown to have deterrent and antifeedant effects on various insect species, including Myzus persicae (Sulzer), Spodoptera spp. and Leptinotarsa decemlineata (Say). This compound may have potential as a broad-spectrum biocontrol agent, similar to pyrethrins, given that it was previously reported to improve yield when sprayed on barley fields. RESULTS This study compares the deterrent effect of polygodial and pyrethrins against the silverleaf whitefly Bemisia tabaci (Gennadius) and the green peach aphid M. persicae in dual-choice assays using compound-coated tomato leaf discs. B. tabaci adults were deterred by polygodial at an ED50 (effective dose at which 50% of the insects are deterred) of about 25 µg g(-1) fresh weight (FW), and green peach aphids at about 54 µg g(-1) FW. Bioassays were benchmarked with pyrethrins that had a 20-fold lower ED50 of approximately 1.4 µg g(-1) FW against whiteflies, but only a twofold lower ED50 (about 28 µg g(-1) FW) against peach aphids. Polygodial showed moderate phytotoxic effects (score of 2 on a scale of 1-5) on tomato leaves at concentrations above the ED50 concentrations (≥ 90 µg g(-1) FW). CONCLUSION The sesquiterpene dialdehyde polygodial is 2-20 times less deterrent than pyrethrins, depending on the insect species, but it could provide a useful complement to pyrethrin sprays as it has a different mode of action, is food grade and has low volatility. However, a formulation that reduces the risks of phytotoxic effects should be developed.
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Affiliation(s)
- Neli Prota
- Plant Research International, Wageningen, The Netherlands; Laboratory of Plant Physiology, Wageningen University, Wageningen, The Netherlands
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Tummala H, Kirwan M, Walne AJ, Hossain U, Jackson N, Pondarre C, Plagnol V, Vulliamy T, Dokal I. ERCC6L2 mutations link a distinct bone-marrow-failure syndrome to DNA repair and mitochondrial function. Am J Hum Genet 2014; 94:246-56. [PMID: 24507776 PMCID: PMC3928664 DOI: 10.1016/j.ajhg.2014.01.007] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 01/10/2014] [Indexed: 10/25/2022] Open
Abstract
Exome sequencing was performed in three index cases with bone marrow failure and neurological dysfunction and whose parents are first-degree cousins. Homozygous truncating mutations were identified in ERCC6L2 in two of the individuals. Both of these mutations affect the subcellular localization and stability of ERCC6L2. We show here that knockdown of ERCC6L2 in human A549 cells significantly reduced their viability upon exposure to the DNA-damaging agents mitomycin C and Irofulven, but not etoposide and camptothecin, suggesting a role in nucleotide excision repair. ERCC6L2-knockdown cells also displayed H2AX phosphorylation, which significantly increased upon genotoxic stress, suggesting an early DNA-damage response. Intriguingly, ERCC6L2 was seen to translocate to the mitochondria and the nucleus in response to DNA damage, and ERCC6L2 knockdown induced intracellular reactive oxygen species (ROS). Treatment with the ROS scavenger N-acetyl cysteine attenuated the Irofulven-induced cytotoxicity in ERCC6L2-knockdown cells and abolished ERCCGL2 traffic to the mitochondria and nucleus in response to this DNA-damaging agent. Collectively, these observations identify a distinct bone-marrow-failure syndrome due to mutations in ERCC6L2, a gene implicated in DNA repair and mitochondrial function.
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Affiliation(s)
- Hemanth Tummala
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Michael Kirwan
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Amanda J Walne
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Upal Hossain
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; Barts Health NHS Trust, London E1 1BB, UK
| | - Nicholas Jackson
- Department of Haematology, University Hospital, Coventry CV2 2DX, UK
| | - Corinne Pondarre
- Institute of Pediatric Hematology and Oncology, Lyon I University, Lyon 69008, France
| | - Vincent Plagnol
- University College London Genetics Institute, London WC1E 6BT, UK
| | - Tom Vulliamy
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK.
| | - Inderjeet Dokal
- Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK; Barts Health NHS Trust, London E1 1BB, UK
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Rattmann YD, Malquevicz-Paiva SM, Iacomini M, Cordeiro LMC. Galactofuranose-rich polysaccharides from Trebouxia sp. induce inflammation and exacerbate lethality by sepsis in mice. Phytochemistry 2013; 94:206-210. [PMID: 23809631 DOI: 10.1016/j.phytochem.2013.05.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2013] [Revised: 05/10/2013] [Accepted: 05/29/2013] [Indexed: 06/02/2023]
Abstract
Trebouxia sp. is a genus of green algae that is a symbiotic partner of lichenized fungi. Previous studies conduced demonstrated that Trebouxia sp. is able to produce galactofuranose-rich polysaccharides (β-d-galactofuranan, mannogalactofuranan), which were able to activate macrophages in vitro. The present study was proposed to investigate the effects of SK10 polysaccharides fraction from Trebouxia sp. on the model of polymicrobial sepsis induced by cecal ligation and puncture in mice in vivo. The subcutaneous administration of SK10 increased the late mortality rate by 20%, stimulated neutrophil accumulation in lungs (indirectly measured through myeloperoxidase activity) and also Interleukin-1β, creatinine and glucose serum levels. Moreover this study demonstrates the in vivo proinflammatory effects of polymers of galactofuranose and that they can act as pathogen-associated molecular patterns being highly recognized by the immune system of mammals, even if they come from a non-pathogenic microorganism.
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Affiliation(s)
- Yanna D Rattmann
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, CP 19046, CEP 81531-980 Curitiba, PR, Brazil
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Cahill PL, Burritt D, Heasman K, Jeffs A, Kuhajek J. Screening for antioxidant and detoxification responses in Perna canaliculus Gmelin exposed to an antifouling bioactive intended for use in aquaculture. Chemosphere 2013; 93:931-938. [PMID: 23830117 DOI: 10.1016/j.chemosphere.2013.05.058] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 05/13/2013] [Accepted: 05/25/2013] [Indexed: 06/02/2023]
Abstract
Polygodial is a drimane sesquiterpene dialdehyde derived from certain terrestrial plant species that potently inhibits ascidian metamorphosis, and thus has potential for controlling fouling ascidians in bivalve aquaculture. The current study examined the effects of polygodial on a range of biochemical biomarkers of oxidative stress and detoxification effort in the gills of adult Perna canaliculus Gmelin. Despite high statistical power and the success of positive controls, the antioxidant enzymes glutathione reductase (GR), glutathione peroxidase (GPOX), catalase (CAT), and superoxide dismutase (SOD); thiol status, as measured by total glutathione (GSH-t), glutathione disulphide (GSSG), and GSH-t/GSSG ratio; end products of oxidative damage, lipid hydroperoxides (LHPO) and protein carbonyls; and detoxification pathways, represented by GSH-t and glutathione S-transferase (GST), were unaffected in the gills of adult P. canaliculus exposed to polygodial at 0.1 or 1 × the 99% effective dose in fouling ascidians (IC₉₉). Similarly, GR levels, thiol status, and detoxification activities were unaffected in mussels exposed to polygodial at 10 × the IC₉₉, although GPOX, CAT, and SOD activities increased. However, the increases were small relative to positive controls, no corresponding oxidative damage was detected, and this concentration greatly exceeds effective doses required to inhibit fouling ascidians in aquaculture. These findings compliment a previous study that established the insensitivity to polygodial of P. canaliculus growth, condition, and mitochondrial functioning, providing additional support for the suitability of polygodial for use as an antifouling agent in bivalve aquaculture.
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Affiliation(s)
- Patrick Louis Cahill
- Cawthron Institute, Private Bag 2, Nelson 7042, New Zealand; Department of Marine Science, University of Auckland, P.O. Box 349, Warkworth, Northland 0941, New Zealand.
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Kasahara Y. [Clinical toxicology of mushroom poisoning. Omphalotus guepiniformis]. Chudoku Kenkyu 2013; 26:215-218. [PMID: 24224384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
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Wang S, Bao L, Zhao F, Wang Q, Li S, Ren J, Li L, Wen H, Guo L, Liu H. Isolation, Identification, and Bioactivity of Monoterpenoids and Sesquiterpenoids from the Mycelia of Edible Mushroom Pleurotus cornucopiae. J Agric Food Chem 2013; 61:5122-5129. [PMID: 23650961 DOI: 10.1021/jf401612t] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Edible mushroom is a profilic source of bioactive metabolites for the development of drugs and nutraceuticals. In this work, four new monoterpenoids (1-4) and one new sesquiterpenoid (6) were isolated from the mycelia of edible mushroom Pleurotus cornucopiae fermented on rice. Their structures were established by nuclear magnetic resonance, mass spectrometry, and circular dichroism (CD) data analysis. Compound 1 possesses an unusual spiro[benzofuran-3,2'-oxiran] skeleton. The absolute configuration of the 6,7-diol moieties in compounds 1, 2, and 6 was assigned using the in situ dimolybdenum CD method. Compounds 1-5, 7, and 8 showed moderate inhibitory activity against nitric oxide production in lipopolysaccaride-activated macrophages, with IC50 values in the range of 60-90 μM. Compounds 6 and 7 also exhibited slight cytotoxicity against HeLa and HepG2 cells.
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Affiliation(s)
- Shaojuan Wang
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences , 8 Beiertiao, Zhongguancun, Haidian District, Beijing 100190, People's Republic of China
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Passoni FD, Oliveira RB, Chagas-Paula DA, Gobbo-Neto L, Da Costa FB. Repeated-dose toxicological studies of Tithonia diversifolia (Hemsl.) A. gray and identification of the toxic compounds. J Ethnopharmacol 2013; 147:389-394. [PMID: 23506989 DOI: 10.1016/j.jep.2013.03.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 01/31/2013] [Accepted: 03/10/2013] [Indexed: 06/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Tithonia diversifolia (Hemsl.) A. Gray has been commonly used in folk medicine to treat abscesses, microbiological infections, snake bites, malaria and diabetes. Both anti-inflammatory and anti-malarial properties have been identified using appropriate assays, but the effective doses have demonstrated toxic effects for the experimental animals. Most of the pharmacological activities have been attributed to sesquiterpene lactones (STLs) and some chlorogenic acid derivatives (CAs) in the leaves of this species. This work aimed to evaluate the repeated-dose toxicity of an aqueous extract (AE) from Tithonia diversifolia leaves and to compare the results with an extract rich in STLs (LRE) and a polar extract (PE) without STLs but rich in CAs. The purpose of this work was to provide insights into the identity of the compounds responsible for the toxic effects of Tithonia diversifolia. MATERIALS AND METHODS The major classes of compounds were confirmed in each extract by IR spectra and HPLC-UV-DAD profiling using previously isolated or standard compounds. The toxicity of each extract was evaluated in a repeated-dose toxicity study in Wistar rats for 90 days. RESULTS The AE is composed of both STLs and CAs, the LRE is rich in STLs, and the PE is rich in CAs. The AE caused alterations in haematological parameters but few alterations in biochemical parameters and was relatively safe at doses lower than 100mg/kg. However, the PE and LRE demonstrated several adverse effects by damaging the liver and kidneys, respectively. CONCLUSION STLs and CAs can be toxic in prolonged use at higher doses in extracts prepared from Tithonia diversifolia by affecting the kidneys and liver.
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Affiliation(s)
- Flávia Donaire Passoni
- Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Universidade de São Paulo (USP), Departamento de Ciências Farmacêuticas. Av. do Café s/no, Ribeirão Preto-SP 14040-903, Brazil
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Sobhan PK, Seervi M, Deb L, Varghese S, Soman A, Joseph J, Mathew KA, Raghu G, Thomas G, E S, S M, R SKT. Calpain and reactive oxygen species targets Bax for mitochondrial permeabilisation and caspase activation in zerumbone induced apoptosis. PLoS One 2013; 8:e59350. [PMID: 23593137 PMCID: PMC3621898 DOI: 10.1371/journal.pone.0059350] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Accepted: 02/13/2013] [Indexed: 12/20/2022] Open
Abstract
Fluorescent protein based signaling probes are emerging as valuable tools to study cell signaling because of their ability to provide spatio- temporal information in non invasive live cell mode. Previously, multiple fluorescent protein probes were employed to characterize key events of apoptosis in diverse experimental systems. We have employed a live cell image based approach to visualize the key events of apoptosis signaling induced by zerumbone, the active principle from ginger Zingiber zerumbet, in cancer cells that enabled us to analyze prominent apoptotic changes in a hierarchical manner with temporal resolution. Our studies substantiate that mitochondrial permeabilisation and cytochrome c dependent caspase activation dominate in zerumbone induced cell death. Bax activation, the essential and early event of cell death, is independently activated by reactive oxygen species as well as calpains. Zerumbone failed to induce apoptosis or mitochondrial permeabilisation in Bax knockout cells and over-expression of Bax enhanced cell death induced by zerumbone confirming the essential role of Bax for mitochondrial permeabilsation. Simultaneous inhibition of reactive oxygen species and calpain is required for preventing Bax activation and cell death. However, apoptosis induced by zerumbone was prevented in Bcl 2 and Bcl-XL over-expressing cells, whereas more protection was afforded by Bcl 2 specifically targeted to endoplasmic reticulum. Even though zerumbone treatment down-regulated survival proteins such as XIAP, Survivin and Akt, it failed to affect the pro-apoptotic proteins such as PUMA and BIM. Multiple normal diploid cell lines were employed to address cytotoxic activity of zerumbone and, in general, mammary epithelial cells, endothelial progenitor cells and smooth muscle cells were relatively resistant to zerumbone induced cell death with lesser ROS accumulation than cancer cells.
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Affiliation(s)
- Praveen K. Sobhan
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Mahendra Seervi
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Lokesh Deb
- Institute of Bioresource and Sustainable Development, Imphal, Manipur, India
| | - Saneesh Varghese
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Anjana Soman
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Jeena Joseph
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Krupa Ann Mathew
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Godi Raghu
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - George Thomas
- Spice Genomics, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Sreekumar E
- Viral Disease Biology Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Manjula S
- Spice Genomics, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
| | - Santosh Kumar T. R
- Cancer Research Program, Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, Kerala, India
- * E-mail:
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Sharma R, Bhat TK, Sharma OP. The environmental and human effects of ptaquiloside-induced enzootic bovine hematuria: a tumorous disease of cattle. Rev Environ Contam Toxicol 2013; 224:53-95. [PMID: 23232919 DOI: 10.1007/978-1-4614-5882-1_3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
In this review, we address the major aspects of enzootic bovine hematuria and have placed special emphasis on describing the etiology, human health implications, and advanced molecular diagnosis of the disease.Enzootic bovine hematuria (EBH) is a bovine disease characterized by the intermittent presence of blood in the urine and is caused by malignant lesions in the urinary bladder. This incurable disease is a serious malady in several countries across many continents. Accurate early-stage diagnosis of the disease is possible by applying advanced molecular techniques, e.g., detection of genetic mutations in the urine of cows from endemic areas. Use of such diagnostic approaches may help create an effective therapy against the disease.There is a consensus that EBH is caused primarily by animals consuming bracken fern (P. aquilinum) as they graze. The putative carcinogen in bracken is ptaquiloside(PT), a glycoside. However, other bracken constituents like quercetin, isoquercetin,ptesculentoside, caudatoside, astragalin, and tannins may also be carcinogenic.Studies are needed to identify the role of other metabolites in inducing urinary bladder carcinogenesis.The bovine papilloma virus is also thought to be an associated etiology in causing EBH in cattle. There is growing alarm that these fern toxins and their metabolites reach and contaminate the soil and water environment and that the carcinogen (PT)is transmitted via cow's milk to the human food chain, where it may now pose a threat to human health. An increased incidence of gastric and esophageal cancer has been recorded in humans consuming bracken ferns, and among those living for long periods in areas infested with bracken ferns.Although preliminary therapeutic vaccine trials with inactivated BPV-2 against EBH have been performed, further work is needed to standardize and validate vaccine doses for animals.
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Affiliation(s)
- Rinku Sharma
- Disease Investigation Laboratory, Indian Veterinary Research Institute, Himachal Pradesh, India.
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Liang Y, Li XM, Cui CM, Li CS, Sun H, Wang BG. Sesquiterpene and acetogenin derivatives from the marine red alga Laurencia okamurai. Mar Drugs 2012; 10:2817-25. [PMID: 23242203 PMCID: PMC3528128 DOI: 10.3390/md10122817] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2012] [Revised: 12/08/2012] [Accepted: 12/10/2012] [Indexed: 11/16/2022] Open
Abstract
In addition to 13 known compounds, four new bisabolane sesquiterpenes, okamurenes A-D (1-4), a new chamigrane derivative, okamurene E (5), and a new C₁₂-acetogenin, okamuragenin (6), were isolated from the marine red alga Laurencia okamurai. The structures of these compounds were determined through detailed spectroscopic analyses. Of these, okamurenes A and B (1 and 2) are the first examples of bromobisabolane sesquiterpenes possessing a phenyl moiety among Laurencia-derived sesquiterpenes, while okamuragenin (6) was the first acetogenin aldehyde possessing a C₁₂-carbon skeleton. Each of the isolated compounds was evaluated for the brine shrimp (Artemia salina) lethal assay and 7-hydroxylaurene displayed potent lethality with LD₅₀ 1.8 μM.
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Affiliation(s)
| | | | | | | | | | - Bin-Gui Wang
- Author to whom correspondence should be addressed; E-Mail: ; Tel./Fax: +86-532-82898553
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