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Şahin E. Efficient bioreduction of 1-(furan-2-yl)ethanone into enantiomerically pure drug precursor by Lactobacillus paracasei BD101. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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2
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Heravi MM, Nazari A. Samarium(ii) iodide-mediated reactions applied to natural product total synthesis. RSC Adv 2022; 12:9944-9994. [PMID: 35424959 PMCID: PMC8965710 DOI: 10.1039/d1ra08163b] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Accepted: 03/12/2022] [Indexed: 12/22/2022] Open
Abstract
Natural product synthesis remains a field in which new synthetic methods and reagents are continually being evaluated. Due to the demanding structures and complex functionality of many natural products, only powerful and selective methods and reagents will be highlighted in this proceeding. Since its introduction by Henri Kagan, samarium(ii) iodide (SmI2, Kagan's reagent) has found increasing use in chemical synthesis. Over the years, many reviews have been published on the application of SmI2 in numerous reductive coupling procedures as well as in natural product total synthesis. This review highlights recent advances in SmI2-mediated synthetic strategies, as applied in the total synthesis of natural products since 2004.
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Affiliation(s)
- Majid M Heravi
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176 Vanak Tehran Iran +98 21 88041344 +98 21 88044051
| | - Azadeh Nazari
- Department of Chemistry, School of Science, Alzahra University PO Box 1993891176 Vanak Tehran Iran +98 21 88041344 +98 21 88044051
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3
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Das A, Banik BK. Versatile Synthesis of Organic Compounds Derived from Ascorbic Acid. CURRENT ORGANOCATALYSIS 2022. [DOI: 10.2174/2213337208666210719102301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
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Ascorbic acid, also known as Vitamin C, is the most important vitamin observed in diverse
food. Ascorbic acid has various applications in several fields. Studies have depicted that in organic
synthesis, it can be used as a mediator or substrate. The derivatives of ascorbic acid have
been found to possess numerous biological activities. In this review, we report the important derivatives
of ascorbic acid, which have significant biological activities. Various studies are considered
in this review to prove its wide range of availability.
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Affiliation(s)
- Aparna Das
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin
Fahd University, Al Khobar 31952, KSA
| | - Bimal Krishna Banik
- Department of Mathematics and Natural Sciences, College of Sciences and Human Studies, Prince Mohammad Bin
Fahd University, Al Khobar 31952, KSA
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Mangisa M, Peter XK, Khosa MC, Fouche G, Nthambeleni R, Senabe J, Tarirai C, Tembu VJ. Ethnomedicinal and phytochemical properties of sesquiterpene lactones from Dicoma (Asteraceae) and their anticancer pharmacological activities: A review. SCIENTIFIC AFRICAN 2021. [DOI: 10.1016/j.sciaf.2021.e00919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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5
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Babaei G, Aliarab A, Abroon S, Rasmi Y, Aziz SGG. Application of sesquiterpene lactone: A new promising way for cancer therapy based on anticancer activity. Biomed Pharmacother 2018; 106:239-246. [PMID: 29966966 DOI: 10.1016/j.biopha.2018.06.131] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 06/24/2018] [Accepted: 06/25/2018] [Indexed: 12/20/2022] Open
Abstract
Cancer is one of the most dangerous diseases that are rapidly increasing globally. After heart disease, it is the second leading cause of death, accounting for seven million deaths each year. Chemotherapy is the use of cytotoxic drugs on cancer cells. But the use of common chemotherapy drugs poses a problem due their high side effects and low efficacy. As a result, efforts are on to find new potent compounds with low side effects. The compounds extracted from plants have been studied in this regard due to their prevalence. Sesquiterpene lactones are a group of natural compounds that were first detected in Asteraceae dark plants. These compounds exercise their effects by reacting with functional groups available on proteins and enzymes, especially the thiol group. Owing to the high side effects as an antitumor synthetic drugs, efforts are being made to find drugs with high efficiency and low side effects. Their high structural ranges have attracted the attention of many researchers as a potential source of new anticancer drugs.
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Affiliation(s)
- Ghader Babaei
- Department of Clinical Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Azadeh Aliarab
- Department of Clinical Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical sciences, Tehran, Iran
| | - Sina Abroon
- Department of Clinical Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
| | - Yusof Rasmi
- Department of Clinical Biochemistry, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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Huang F, Li X, Lin S, Liang C, Huang S, Wang X. Stereoselective total synthesis of (-)-(6S,2'R)-cryptocaryalactone. Nat Prod Res 2017; 31:2420-2427. [PMID: 28427276 DOI: 10.1080/14786419.2017.1312392] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
We described a novel stereoselective total synthesis of (-)-(6S,2'R)-cryptocaryalactone, a natural product containing syn/anti-6,8-diol/5,6-dihydro-2H-pyran-2-one unit. The approach, which characterised a highly diastereoselective chelation-controlled Mukaiyama aldol reaction of a benzyl-protected aldehyde and a Yamaguchi lactonisation of a δ-hydroxy-trans-α,β-unsaturated carboxylic acid, is an alternative synthetic strategy towards cryptocaryalactones.
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Affiliation(s)
- Feifei Huang
- a School of Pharmacy , Jiangxi Science and Technology Normal University , Nanchang , China
| | - Xiaotong Li
- a School of Pharmacy , Jiangxi Science and Technology Normal University , Nanchang , China
| | - Shuangjie Lin
- a School of Pharmacy , Jiangxi Science and Technology Normal University , Nanchang , China
| | - Cheng Liang
- a School of Pharmacy , Jiangxi Science and Technology Normal University , Nanchang , China
| | - Shuangping Huang
- a School of Pharmacy , Jiangxi Science and Technology Normal University , Nanchang , China
| | - Xiaoji Wang
- b School of Life Science , Jiangxi Science and Technology Normal University , Nanchang , China
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Altholactone Inhibits NF-κB and STAT3 Activation and Induces Reactive Oxygen Species-Mediated Apoptosis in Prostate Cancer DU145 Cells. Molecules 2017; 22:molecules22020240. [PMID: 28178219 PMCID: PMC6155856 DOI: 10.3390/molecules22020240] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 01/29/2017] [Accepted: 02/02/2017] [Indexed: 12/21/2022] Open
Abstract
Altholactone, a natural compound isolated from Goniothalamus spp., has demonstrated anti-inflammatory and anticancer activities, but its molecular mechanisms are still not fully defined. Nuclear factor kappa B (NF-κB) and signal transducer and activator of transcription 3 (STAT3) play pivotal roles in the cell survival of many human tumors. The objective of this study was to elucidate the mechanism of action of altholactone against prostate cancer DU145 cells and to evaluate whether its effects are mediated by inhibition of NF-κB and STAT3 activity. Altholactone inhibited proliferation of DU145 cells and induced cell cycle arrest in S phase and triggered apoptosis. Reporter assays revealed that altholactone repressed p65- and TNF-α-enhanced NF-κB transcriptional activity and also inhibited both constitutive and IL-6-induced transcriptional activity of STAT3. Consistent with this, altholactone down-regulated phosphorylation of STAT3 and moreover, decreased constitutively active mutant of STAT3 (STAT3C)-induced transcriptional activity. Altholactone treatment also results in down-regulation of STAT3 target genes such as survivin, and Bcl-2 followed by up regulation of pro-apoptotic Bax protein. However, pre-treatment with the antioxidant N-acetylcysteine (NAC) significantly inhibited the activation of Bax and prevented down-regulation of STAT3 target genes. Collectively, our findings suggest that altholactone induces DU145 cells death through inhibition of NF-κB and STAT3 activity.
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AnkiReddy S, AnkiReddy P, Sabitha G. The first total synthesis of (+)-goniothalesacetate and syntheses of (+)-altholactone, (+)-gonioheptolide A, and (−)-goniofupyrone by an asymmetric acetate aldol approach. Org Biomol Chem 2015; 13:10487-95. [DOI: 10.1039/c5ob01598g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First stereoselective total synthesis of (+)-goniothalesacetate and total synthesis of (+)-altholactone, (+)-gonioheptolide A, and (−)-goniofupyrone have been achieved.
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Affiliation(s)
- Sandeep AnkiReddy
- Natural Products Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 607
- India
| | - Praveen AnkiReddy
- Natural Products Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 607
- India
| | - Gowravaram Sabitha
- Natural Products Chemistry Division
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500 607
- India
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Eschenbrenner-Lux V, Kumar K, Waldmann H. The asymmetric hetero-Diels-Alder reaction in the syntheses of biologically relevant compounds. Angew Chem Int Ed Engl 2014; 53:11146-57. [PMID: 25220929 DOI: 10.1002/anie.201404094] [Citation(s) in RCA: 171] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2014] [Revised: 06/03/2014] [Indexed: 12/21/2022]
Abstract
The hetero-Diels-Alder reaction is one of the most powerful transformations in the chemistry toolbox for the synthesis of aza- and oxa-heterocycles embodying multiple stereogenic centers. However, as compared to other cycloadditions, in particular the dipolar cycloadditions and the Diels-Alder reaction, the hetero-Diels-Alder reaction has been much less explored and exploited in organic synthesis. Nevertheless, this powerful transformation has opened up efficient and creative routes to biologically relevant small molecules and different natural products which contain six-membered oxygen or nitrogen ring systems. Recent developments in this field, in particular in the establishment of enantioselectively catalyzed hetero-Diels-Alder cycloadditions steered by a plethora of different catalysts and the application of the resulting small molecules in chemical biology and medicinal chemistry research, are highlighted in this Minireview.
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Affiliation(s)
- Vincent Eschenbrenner-Lux
- Max-Planck-Institut für molekulare Physiologie, Dortmund (Germany); Technische Universität, Dortmund, Dortmund (Germany)
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11
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Eschenbrenner-Lux V, Kumar K, Waldmann H. Die asymmetrische Hetero-Diels-Alder-Reaktion in Synthesen biologisch relevanter Verbindungen. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201404094] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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12
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Emerging anticancer potentials of goniothalamin and its molecular mechanisms. BIOMED RESEARCH INTERNATIONAL 2014; 2014:536508. [PMID: 25247178 PMCID: PMC4163372 DOI: 10.1155/2014/536508] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 07/23/2014] [Accepted: 07/25/2014] [Indexed: 12/13/2022]
Abstract
The treatment of most cancers is still inadequate, despite tremendous steady progress in drug discovery and effective prevention. Nature is an attractive source of new therapeutics. Several medicinal plants and their biomarkers have been widely used for the treatment of cancer with less known scientific basis of their functioning. Although a wide array of plant derived active metabolites play a role in the prevention and treatment of cancer, more extensive scientific evaluation of their mechanisms is still required. Styryl-lactones are a group of secondary metabolites ubiquitous in the genus Goniothalamus that have demonstrated to possess antiproliferative activity against cancer cells. A large body of evidence suggests that this activity is associated with the induction of apoptosis in target cells. In an effort to promote further research on the genus Goniothalamus, this review offers a broad analysis of the current knowledge on Goniothalamin (GTN) or 5, 6, dihydro-6-styryl-2-pyronone (C13H12O2), a natural occurring styryl-lactone. Therefore, it includes (i) the source of GTN and other metabolites; (ii) isolation, purification, and (iii) the molecular mechanisms of actions of GTN, especially the anticancer properties, and summarizes the role of GTN which is crucial for drug design, development, and application in future for well-being of humans.
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13
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A convenient approach to total synthesis of synargentolide-B from l-ascorbic acid and d-ribose. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.03.133] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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14
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ZHAO BING, LI XIAOMENG. Altholactone induces reactive oxygen species-mediated apoptosis in bladder cancer T24 cells through mitochondrial dysfunction, MAPK-p38 activation and Akt suppression. Oncol Rep 2014; 31:2769-75. [DOI: 10.3892/or.2014.3126] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2013] [Accepted: 02/14/2014] [Indexed: 11/06/2022] Open
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15
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HAN SHUWEN, ZHANG GANG, LI MAIDONG, CHEN DONGYUN, WANG YING, YE WENCAI, JI ZHAONING. L-securinine induces apoptosis in the human promyelocytic leukemia cell line HL-60 and influences the expression of genes involved in the PI3K/AKT/mTOR signaling pathway. Oncol Rep 2014; 31:2245-51. [DOI: 10.3892/or.2014.3101] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2013] [Accepted: 02/03/2014] [Indexed: 11/06/2022] Open
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16
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Rajaram S, Ramesh D, Ramulu U, Prabhakar P, Venkateswarlu Y. A Stereoselective Aldol Approach for the Total Syntheses of Two 6-Alkylated 2H-Pyran-2-ones. Helv Chim Acta 2014. [DOI: 10.1002/hlca.201300139] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Johnson TA, Sohn J, Ward AE, Cohen TL, Lorig-Roach ND, Chen H, Pilli RA, Widjaja EA, Hanafi M, Kardono LB, Lotulung PD, Boundy-Mills K, Bjeldanes LF. (+)-Altholactone exhibits broad spectrum immune modulating activity by inhibiting the activation of pro-inflammatory cytokines in RAW 264.7 cell lines. Bioorg Med Chem 2013; 21:4358-64. [DOI: 10.1016/j.bmc.2013.04.055] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2013] [Revised: 04/12/2013] [Accepted: 04/22/2013] [Indexed: 11/26/2022]
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18
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Uthaisang-Tanechpongtamb W, Sriyabhaya P, Wilairat P. Role of altholactone in inducing type II apoptosis signalling pathway and expression of cancer-related genes in cervical carcinoma HeLa cell line. Cell Biol Int 2013; 37:471-7. [PMID: 23494867 DOI: 10.1002/cbin.10059] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 01/22/2013] [Indexed: 11/10/2022]
Abstract
Goniothalamus species (Annonaceae) is a shrub that grows in the rainforest of tropical Asia. Several compounds have been isolated and exhibit the potential use for cancer treatment. In this work, altholactone isolated from Goniothalamus macrophyllus was investigated for its cytotoxicity, apoptosis signalling and the expression of cancer-related genes in the cervical carcinoma HeLa cells. Cytotoxicity was evaluated by MTT assay. Apoptotic characteristics were evaluated by morphological studies. Caspase-3 activity was detected using a fluorogenic substrate. Cytochrome c release from mitochondria and protein Bid were determined by Western blotting and cancer-related genes expression by RT-PCR. The results demonstrated that altholactone was cytotoxic to HeLa (IC50 = 9.6 μg/mL), and apoptotic cell death was manifested by appearance of chromatin condensation and caspase-3 activation, which was inhibited by specific inhibitors of both caspase-8 and -9. Release into the cytosol of cytochrome and cleavage of Bid occurred. Altholactone also caused a decrease in bcl-2 and an increase in p53 expression. These unique properties of altholactone suggest a potential for cancer chemotherapy.
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Cytotoxicity, Antiproliferative Effects, and Apoptosis Induction of Methanolic Extract of Cynometra cauliflora Linn. Whole Fruit on Human Promyelocytic Leukemia HL-60 Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 2012:127373. [PMID: 23227094 PMCID: PMC3513972 DOI: 10.1155/2012/127373] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2012] [Revised: 08/25/2012] [Accepted: 09/10/2012] [Indexed: 11/18/2022]
Abstract
Methanolic extract of Cynometra cauliflora whole fruit was assayed for cytotoxicity against the human promyelocytic leukemia HL-60 and the normal mouse fibroblast NIH/3T3 cell lines by using the MTT assay. The CD(50) of the extract for 72 hours was 0.9 μg/mL whereas the value for the cytotoxic drug vincristine was 0.2 μg/mL. The viability of the NIH/3T3 cells was at 80.0% when treated at 15.0 μg/mL. The extract inhibited HL-60 cell proliferation with dose dependence. AO/PI staining of HL-60 cells treated with the extract revealed that majority of cells were in the apoptotic cell death mode. Flow cytometry analysis of HL-60 cells treated at CD(50) of the extract showed that the early apoptotic cells were 31.0, 26.3 and 19.9% at 24, 48, and 72 hours treatment, respectively. The percentage of late apoptotic cells was increased from 62.0 at 24 hours to 64.1 and 70.2 at 48 and 72 hours, respectively. Meanwhile, percent of necrotic cells were 4.9, 6.6, and 8.5 at 24, 48, and 72 hours, respectively. This study has shown that the methanolic extract of C. cauliflora whole fruit was cytotoxic towards HL-60 cells and induced the cells into apoptotic cell death mode, but less cytotoxic towards NIH/3T3 cells.
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Mhaidat NM, Abdul-Razzak KK, Alkofahi AS, Alsarhan AM, Aldaher AN, Thorne RF. Altholactone Induces Apoptotic Cell Death in Human Colorectal Cancer Cells. Phytother Res 2011; 26:926-31. [DOI: 10.1002/ptr.3666] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2011] [Revised: 08/05/2011] [Accepted: 08/29/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Nizar M. Mhaidat
- Faculty of Pharmacy; Jordan University of Science and Technology; Irbid 22110 Jordan
| | - Kalid K. Abdul-Razzak
- Faculty of Pharmacy; Jordan University of Science and Technology; Irbid 22110 Jordan
| | - Ahmad S. Alkofahi
- Faculty of Pharmacy; Jordan University of Science and Technology; Irbid 22110 Jordan
| | - Aseera M. Alsarhan
- Faculty of Pharmacy; Jordan University of Science and Technology; Irbid 22110 Jordan
| | - Ahmad N. Aldaher
- Faculty of Science and Arts; Jordan University of Science and Technology; Irbid 22110 Jordan
| | - Rick F. Thorne
- Cancer Research Unit; Newcastle University; Newcastle NSW 2308 Australia
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25
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Shekhar V, Reddy DK, Reddy SP, Prabhakar P, Venkateswarlu Y. Stereoselective Total Synthesis of Umuravumbolide. European J Org Chem 2011. [DOI: 10.1002/ejoc.201100510] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Unsworth WP, Stevens K, Lamont SG, Robertson J. Stereospecificity in the Au-catalysed cyclisation of monoallylic diols. Synthesis of (+)-isoaltholactone. Chem Commun (Camb) 2011; 47:7659-61. [DOI: 10.1039/c1cc11805f] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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28
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Sabitha G, Reddy CN, Gopal P, Yadav J. Stereoselective total synthesis of (+)-anamarine via cross-metathesis protocol. Tetrahedron Lett 2010. [DOI: 10.1016/j.tetlet.2010.08.077] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chan KM, Rajab NF, Siegel D, Din LB, Ross D, Inayat-Hussain SH. Goniothalamin induces coronary artery smooth muscle cells apoptosis: the p53-dependent caspase-2 activation pathway. Toxicol Sci 2010; 116:533-48. [PMID: 20498002 DOI: 10.1093/toxsci/kfq151] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Goniothalamin (GN), a styryl-lactone isolated from Goniothalamus andersonii, has been demonstrated to possess antirestenostic properties by inducing apoptosis on coronary artery smooth muscle cells (CASMCs). In this study, the molecular mechanisms of GN-induced CASMCs apoptosis were further elucidated. Apoptosis assessment based on the externalization of phosphatidylserine demonstrated that GN induces CASMCs apoptosis in a concentration-dependent manner. The GN-induced DNA damage occurred with concomitant elevation of p53 as early as 2 h, demonstrating an upstream signal for apoptosis. However, the p53 elevation in GN-treated CASMCs was independent of NAD(P)H: quinone oxidoreductase 1 and Mdm-2 expression. An increase in hydrogen peroxide and reduction in free thiols confirmed the role for oxidative stress in GN treatment. Pretreatment with the pan-caspase inhibitor benzyloxycarbonyl-Val-Ala-Asp-fluoromethyl ketone (z-VAD-FMK) that significantly abrogated GN-induced CASMCs apoptosis suggested the involvement of caspase(s). The role of apical caspase-2, -8, and -9 was then investigated, and sequential activation of caspase-2 and -9 but not caspase-8 leading to downstream caspase-3 cleavage was observed in GN-treated CASMCs. Reduction of ATP level and decrease in oxygen consumption further confirmed the role of mitochondria in GN-induced apoptosis in CASMCs. The mitochondrial release of cytochrome c was seen without mitochondrial membrane potential loss and was independent of cardiolipin. These data provide insight into the mechanisms of GN-induced apoptosis, which may have important implications in the development of drug-eluting stents.
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Affiliation(s)
- Kok Meng Chan
- Department of Biomedical Science, Faculty of Allied Health Sciences, Universiti Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz, Kuala Lumpur 50300, Malaysia
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Gupta S, Poeppelman L, Hinman CL, Bretz J, Hudson RA, Tillekeratne LMV. Apoptotic activities in closely related styryllactone stereoisomers toward human tumor cell lines: Investigation of synergism of styryllactone-induced apoptosis with TRAIL. Bioorg Med Chem 2009; 18:849-54. [PMID: 20036566 DOI: 10.1016/j.bmc.2009.11.045] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Revised: 11/12/2009] [Accepted: 11/21/2009] [Indexed: 10/20/2022]
Abstract
A related series of styryllactones with small functional and stereochemical variations were compiled for a comparative study of their apoptotic activities toward two tumorigenic and one non-tumorigenic control cell line. While a substantial range of intrinsic activity was observed, the relative order of activity of the different compounds toward the cell types varied somewhat as did the relative ratios of apoptosis and necrosis observed in conjunction with the loss of cell viability. While some of the styryllactones showed substantial activity, a small but significant apoptosis-induced synergism was demonstrated with (-)-altholactone and TRAIL (tumor necrosis factor-related apoptosis-inducing ligand).
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Affiliation(s)
- Shuchi Gupta
- Department of Medicinal & Biological Chemistry, College of Pharmacy, University of Toledo, Toledo, OH 43606, USA
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31
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Sabitha G, Gopal P, Reddy CN, Yadav J. First stereoselective synthesis of synargentolide A and revision of absolute stereochemistry. Tetrahedron Lett 2009. [DOI: 10.1016/j.tetlet.2009.08.109] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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32
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Radha Krishna P, Lopinti K, Reddy KLN. A short stereoselective synthesis of (+)-(6R,2'S)-cryptocaryalactone via ring-closing metathesis. Beilstein J Org Chem 2009; 5:14. [PMID: 19478909 PMCID: PMC2686312 DOI: 10.3762/bjoc.5.14] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 04/03/2009] [Indexed: 11/23/2022] Open
Abstract
A short stereoselective synthesis of (+)-(6R,2'S)-cryptocaryalactone was successfully completed. Key steps included the application of Carreira's asymmetric alkynylation reaction to form a propargylic alcohol and subsequently lactone formation using the powerful ring-closing metathesis reaction.
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Affiliation(s)
- Palakodety Radha Krishna
- D-206/B, Discovery Laboratory, Organic Chemistry Division-III, Indian Institute of Chemical Technology, Hyderabad-500 607, India.
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Aljarilla A, Murcia MC, Csákÿ AG, Plumet J. A Convenient Approach to Polycyclic Derivatives with acis-Fused 2,6-Dioxabicyclo[4.3.0]nonane System by the Sequence Ring-Opening/Intramolecular Ring-Closing Enyne Metathesis/Diels-Alder Reaction. European J Org Chem 2009. [DOI: 10.1002/ejoc.200800936] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wiart C. Goniothalamus species: a source of drugs for the treatment of cancers and bacterial infections? EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2007; 4:299-311. [PMID: 17965760 PMCID: PMC1978243 DOI: 10.1093/ecam/nem009] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2005] [Accepted: 01/16/2007] [Indexed: 11/23/2022]
Abstract
Irrespective of the presence of cytotoxic acetogenins and styryl-lactones in the genus Goniothalamus, only 22 species in the genus Goniothalamus, out of 160 species (13.7%) have so far been investigated. In an effort to promote further research on the genus Goniothalamus which could represent a source of drugs for the treatment of cancers and bacterial infections, this work offers a broad analysis of current knowledge on Goniothalamus species. Therefore, it includes (i) taxonomy (ii) botanical description (iii) traditional medicinal uses and (iv) phytochemical and pharmacological studies. We discuss the molecular mechanisms of actions of acetogenins and styryl-lactones, with some emphasis on the possible involvement of protein kinase, Bax and TRAIL receptors in the cytotoxic effects of styryl-lactones. We also report (v) the growth inhibition of several nosocomial bacteria by Goniothalamus. scortechinii. The crude methanol extract of G. scortechinii showed a good and broad spectrum of antibacterial activity against both Gram-negative and Gram-positive bacteria.
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Affiliation(s)
- Christophe Wiart
- School of Pharmacy, The University of Nottingham (Malaysia Campus), Jalan Broga, 43500 Semenyih, Selangor, Malaysia.
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Intramolecular [2+2]-cycloaddition of propargylic 2,3-allenoates for the efficient synthesis of 3-oxabicyclo[4.2.0]octa-1(8),5-dien-4-ones: a dramatic substituent effect. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.05.040] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Tian Z, Chen S, Zhang Y, Huang M, Shi L, Huang F, Fong C, Yang M, Xiao P. The cytotoxicity of naturally occurring styryl lactones. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2006; 13:181-6. [PMID: 16428026 DOI: 10.1016/j.phymed.2004.07.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2004] [Accepted: 07/20/2004] [Indexed: 05/06/2023]
Abstract
We extracted and isolated three natural styryl lactones from Goniothalamus griffithii Hook f. Thoms and investigated their cytotoxicity on a panel of three hepatocyte cell lines, HepG2, drug resistant HepG2 (HepG2-R) and primary cultured normal mice hepatocyte in order to find candidates of potential anti-cancer drugs which have low toxicity on normal cells and high effect on tumors or drug resistant tumors. All the three styryl lactones showed evident cytotoxic activities on both HepG2 and HepG2-R cell lines; however, gonithalamin and goniodiol shows less toxicity on normal mice hepatocyte as the IC(50) values of them on normal mice hepatocyte were about three times of that on HepG2. Morphological observation and cell cycle analysis were employed to elucidate the mechanisms of cytotoxicity of the tested compounds. Many apoptotic cells were observed in gonithalamin- and altholactone-treated cells, whereas, cells with chromosomes gathered at the equator were easily found in goniodiol-treated cultures. The analysis of cell cycle showed that G(2)/M arrest contributed to goniothalimin- and gonidiol-caused cell death and apoptosis was the cause of gonithalamin- and altholactone-induced cell death. Our results suggest that the three styryl lactones may be prospectively developed into anti-tumor drugs, especially on treating drug-resistance tumor after structure modification.
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Affiliation(s)
- Ze Tian
- Institute of Medicinal Plant, Chinese Academy of Medical Science, Peking Union Medical College, Beijing, PR China
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Messer R, Fuhrer CA, Häner R. Natural product-like libraries based on non-aromatic, polycyclic motifs. Curr Opin Chem Biol 2005; 9:259-65. [PMID: 15939327 DOI: 10.1016/j.cbpa.2005.04.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2004] [Accepted: 04/07/2005] [Indexed: 11/21/2022]
Abstract
Diversity-oriented synthesis is an intriguing approach for creating structurally diverse compounds that cover the pharmaceutically relevant chemical space in an optimal way. On the other hand, an over-proportionally large number of drugs or lead structures originate from compounds isolated from natural sources. Thus, not surprisingly, an increasing number of combinatorial libraries are based on motifs resembling natural products. A particular aspect of many natural products is the presence of non-aromatic, polycyclic core structures. The fusion of several rings leads to geometrically well-defined structures and, thus, holds the promise of a high functional specialisation. In this review we present several actual examples of natural product-like libraries with non-aromatic polycyclic motifs based on naturally occurring compounds.
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Affiliation(s)
- Roland Messer
- Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, CH-3012 Bern, Switzerland
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Inayat-Hussain SH, Thomas NF. Recent advances in the discovery and development of stilbenes and lactones in anticancer therapy. Expert Opin Ther Pat 2005. [DOI: 10.1517/13543776.14.6.819] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Rajab NF, Hamid ZA, Hassan H, Ali AM, Din LB, Inayat-Hussain SH. Evaluation of the cytotoxic and genotoxic effects of goniothalamin in leukemic cell lines. ACTA ACUST UNITED AC 2005. [DOI: 10.3123/jems.27.161] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Anazetti MC, Melo PS, Durán N, Haun M. Dehydrocrotonin and its derivative, dimethylamide-crotonin induce apoptosis with lipid peroxidation and activation of caspases-2, -6 and -9 in human leukemic cells HL60. Toxicology 2004; 203:123-37. [PMID: 15363588 DOI: 10.1016/j.tox.2004.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2003] [Revised: 06/03/2004] [Accepted: 06/04/2004] [Indexed: 11/30/2022]
Abstract
A variety of stimuli can induce cells to undergo apoptosis, with one of the most reproducible inducers being mild oxidative stress following exposure to anticancer agents. Apoptosis involves events mediated by cysteine proteases (caspases) that are classified as initiators (-8, -9 and -12) or executors (-2, -3, -6 and -7). In this study, we examined the mechanisms of apoptosis induced by dehydrocrotonin (DHC), a diterpene lactone isolated from the Amazonian plant Croton cajucara, and its synthetic derivative, dimethylamide-crotonin (DCR), in human HL60 promyelocytic leukemia cells. Flow cytometric analysis of HL60 cells after treatment for 72 h showed that DCR- and DHC-induced apoptosis, with maximum cell death at a concentration of 250 microM for both compounds. DCR and DHC were effective in triggering the activation of caspases-2, -6 and -9. The level of reduced glutathione (GSH) decreased, whereas there was an increase in thiobarbituric acid-reactive substance (TBARS) production and in mitochondrial swelling. These effects on mitochondrial swelling, GSH content and lipid peroxidation were abolished by cyclosporine A, an inhibitor of the membrane permeability transition. The cytotoxicity of DHC and DCR was prevented by a high concentration of GSH (15 mM) in the culture medium. These results indicate that DCR and DHC produced apoptosis partly by oxidative stress-induced lipid peroxidation, which triggered the caspase cascade, that lead to apoptotic cell death in HL60 cells. Based on the pattern of caspase activation, on the increase in mitochondrial swelling and on the inhibitory action of cyclosporine A, we conclude that DCR and DHC triggered apoptosis in HL60 cells probably through cytochrome c release and apoptosome formation.
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Affiliation(s)
- Maristella C Anazetti
- Departamento de Bioquímica, Instituto de Biologia, Universidade Estadual de Campinas, CP 6109, SP, 13083-970, Brazil
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