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Periche PG, Lin J, Bhupathiraju NVSDK, Kalidindi T, Johnson DS, Pillarsetty N, Mootoo DR. Targeting Carbohydrate Mimetics of Tetrahydrofuran-Containing Acetogenins to Prostate Cancer. Molecules 2023; 28:molecules28072884. [PMID: 37049648 PMCID: PMC10095889 DOI: 10.3390/molecules28072884] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023] Open
Abstract
The high potency of the tetrahydrofuran-containing acetogenins (THF-ACGs) against a broad range of human cancer cell lines has stimulated interest in structurally simpler mimetics. In this context, we have previously reported THF-ACG mimetics in which the THF and butenolide moieties of a mono-THF-ACG were replaced with carbohydrate and thiophene residues, respectively. In the present study, towards the targeting of these carbohydrate analogues to prostate cancer (PCa), we synthesized prodrugs in which a parent thiophene or butenolide congener was conjugated through a self-immolative linker to 2-[3-(1,3-dicarboxypropyl)ureido] pentanedioic acid (DUPA), a highly specific ligand for prostate-specific membrane antigen (PSMA), which is overexpressed on prostate tumors. Both prodrugs were found to be more active against receptor positive LNCaP than receptor-negative PC-3 cells, with 2.5 and 12 times greater selectivity for the more potent thiophene analog and the less active butenolide congener, respectively. This selectivity for LNCaP over PC-3 contrasted with the behavior of the parent drugs, which showed similar or significantly higher activity for PC-3 compared to LNCaP. These data support the notion that higher activity of these DUPA-derived prodrugs against LNCaP cells is connected to their binding to PSMA and suggest that the conjugation of PSMA ligands to this family of cytotoxic agents may be effective for targeting them to PCa.
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Affiliation(s)
- Patricia Gonzalez Periche
- Department of Chemistry, Hunter College and The Graduate Center, City University of New York, New York, NY 10065, USA
| | - Jacky Lin
- Department of Chemistry, Hunter College and The Graduate Center, City University of New York, New York, NY 10065, USA
| | - Naga V S D K Bhupathiraju
- Department of Chemistry, Hunter College and The Graduate Center, City University of New York, New York, NY 10065, USA
| | - Teja Kalidindi
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Delissa S Johnson
- Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | | | - David R Mootoo
- Department of Chemistry, Hunter College and The Graduate Center, City University of New York, New York, NY 10065, USA
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Grba DN, Blaza JN, Bridges HR, Agip ANA, Yin Z, Murai M, Miyoshi H, Hirst J. Cryo-electron microscopy reveals how acetogenins inhibit mitochondrial respiratory complex I. J Biol Chem 2022; 298:101602. [PMID: 35063503 PMCID: PMC8861642 DOI: 10.1016/j.jbc.2022.101602] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 12/22/2022] Open
Abstract
Mitochondrial complex I (NADH:ubiquinone oxidoreductase), a crucial enzyme in energy metabolism, captures the redox potential energy from NADH oxidation/ubiquinone reduction to create the proton motive force used to drive ATP synthesis in oxidative phosphorylation. High-resolution single-particle electron cryo-EM analyses have provided detailed structural knowledge of the catalytic machinery of complex I, but not of the molecular principles of its energy transduction mechanism. Although ubiquinone is considered to bind in a long channel at the interface of the membrane-embedded and hydrophilic domains, with channel residues likely involved in coupling substrate reduction to proton translocation, no structures with the channel fully occupied have yet been described. Here, we report the structure (determined by cryo-EM) of mouse complex I with a tight-binding natural product acetogenin inhibitor, which resembles the native substrate, bound along the full length of the expected ubiquinone-binding channel. Our structure reveals the mode of acetogenin binding and the molecular basis for structure-activity relationships within the acetogenin family. It also shows that acetogenins are such potent inhibitors because they are highly hydrophobic molecules that contain two specific hydrophilic moieties spaced to lock into two hydrophilic regions of the otherwise hydrophobic channel. The central hydrophilic section of the channel does not favor binding of the isoprenoid chain when the native substrate is fully bound but stabilizes the ubiquinone/ubiquinol headgroup as it transits to/from the active site. Therefore, the amphipathic nature of the channel supports both tight binding of the amphipathic inhibitor and rapid exchange of the ubiquinone/ubiquinol substrate and product.
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Affiliation(s)
- Daniel N Grba
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - James N Blaza
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Hannah R Bridges
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Ahmed-Noor A Agip
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Zhan Yin
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK
| | - Masatoshi Murai
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Hideto Miyoshi
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - Judy Hirst
- MRC Mitochondrial Biology Unit, University of Cambridge, Cambridge, UK.
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Periyasamy L, Muruganantham B, Deivasigamani M, Lakshmanan H, Muthusami S. Acetogenin Extracted from Annona muricata Prevented the Actions of EGF in PA-1 Ovarian Cancer Cells. Protein Pept Lett 2021; 28:304-314. [PMID: 32938339 DOI: 10.2174/0929866527666200916141730] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 08/02/2020] [Accepted: 08/08/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND In individuals with ovarian cancer, an increase in the circulating level of the epidermal growth factor (EGF) is readily apparent. Ovarian cancer cells exhibit signaling pathway of the epidermal growth factor (EGFR) and respond to the EGF. Annona muricata (AM) has been shown to decrease ovarian cell proliferation however, role of AM in regulating EGF actions is not yet to be reported. OBJECTIVE In this study, we proposed that the fractionated compound acetogenin can inhibit the activation of EGFR-regulated signaling cascades such as MAPK7 / PI3K-Akt / mTOR / STAT upon EGF stimulation. METHODS Ethanolic extract was prepared for the whole AM plant and Thin Layer Chromatography (TLC) was performed to characterize the secondary metabolites and each fraction was assessed using kedde reagent for the presence of acetogenin. The effects of acetogenins were then tested on the survival of PA-1 ovarian cancer cells under basal and EGF stimulated conditions. To delineate the role of acetogenin in EGFR signaling cascades, the in silico docking studies were conducted. RESULTS The fraction of acetogenin decreased the viability of EGF induced PA-1 ovarian cancer cells that indicating the EGF inhibitory effects of acetogenin. The docking studies specifically illustrated that when the acetogenin binding with tyrosine kinase (TK) and regulatory unit (RU) which subsequently resulted in a reduction in EGF induced the survival of PA-1 ovarian cancer cells. DISCUSSION The vital regulatory role of acetogenin reported in this study indicate significant anticancer activities of acetogenin from AM. The in silico study of the acetogenin function predicted that it binds specifically to Asp837 (phosphor-acceptor site) of EGFR, essential for phosphorylation of substrates in the TK domain and RU which promote downstream signaling. CONCLUSION Acetogenin isolated from AM effectively inhibited the survival of PA-1 ovarian cancer cells through impaired EGF signaling.
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Affiliation(s)
- Loganayaki Periyasamy
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India
| | - Bharathi Muruganantham
- Karpagam Cancer Research Centre, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India
| | - Malarvizhi Deivasigamani
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India
| | - Hariprasath Lakshmanan
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India
| | - Sridhar Muthusami
- Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore, Tamil Nadu 641 021, India
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Volobuff CRF, Pederiva MMC, Benites RSR, Lima CJ, Argandoña EJS, Cardoso CAL, Pereira ZV, Ruiz ALTG, Foglio MA, de Carvalho JE, Formagio ASN. Bioguided Fractionation, and Antioxidant, Antiproliferative, and Anti-Inflammatory Activity of Annona cacans Warm. J Med Food 2019; 22:1078-1086. [PMID: 31549890 DOI: 10.1089/jmf.2018.0198] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
This study evaluated to determine the phenolic and flavonoids contents, and antioxidant, anti-inflammatory, and antiproliferative activity of the hydromethanolic extracts of the leaves, pulp, and seeds of Annona cacans. The isolation and structural identification of the constituent acetogenin, phenolic acid, and flavonoids were also reported. Antioxidant capacity was determined by the 2,2-diphenyl-1-picrylhydrazyl (DPPH), ethylbenzothiazoline-6-sulfonic acid (ABTS), and β-carotene/linoleic acid methods. Cell proliferation was determined by spectrophotometric quantification of the cellular protein content using a sulforhodamine B assay. Anti-inflammatory activity was evaluated in paw edema model, to myeloperoxidase (MPO) activity induced by carrageenan in mice. Fractionation resulted in the isolation of one acetogenin (annoreticuin-9-one), two flavonoids (quercetin-3-O-β-glucoside-6-O-α-rhamnoside and kaempferol-3-O-β-glucoside), and one phenolic acid (p-coumaric acid). The pulp extract presented potent antioxidant activities by the DPPH (IC50 = 44.08 μg/mL) and ABTS (IC50 = 39.32 μg/mL) methods, as well as high contents of phenols (618.95 mg GA/g) and flavonoids (477.35 mg QE/g). The bioguided fractionation demonstrated that the ethyl acetate fraction of the pulp extract and annoreticuin-9-one showed potent antiproliferative activity against ovarian cancer (GI50 = 6.4 μg/mL). The anti-inflammatory activity demonstrated significant inhibition of edema compared to the control group in 2 and 4 h; in addition, the extracts inhibited the increase in MPO activity after 6 h, when compared to the DEX and control groups. For the first time, this study demonstrated antioxidant, anti-inflammatory, and antiproliferative activity, as well as compounds isolated, suggesting that A. cacans could also be potential sources for prevention of cancer and other diseases associated with oxidative stress.
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Affiliation(s)
| | | | | | - Camila Juliane Lima
- Department of Chemistry, University of Mato Grosso do Sul, Dourados, MS, Brazil
| | | | | | - Zefa Valdevina Pereira
- Faculty of Biological and Environmental Sciences, Federal University of Greater Dourados (UFGD), Dourados, MS, Brazil
| | - Ana Lúcia Tasca Góis Ruiz
- Multidisciplinary Center for Chemical, Biological, and Agricultural Research, University of Campinas Unicamp, Campinas, SP, Brazil
| | - Mary Ann Foglio
- Multidisciplinary Center for Chemical, Biological, and Agricultural Research, University of Campinas Unicamp, Campinas, SP, Brazil
| | - João Ernesto de Carvalho
- Multidisciplinary Center for Chemical, Biological, and Agricultural Research, University of Campinas Unicamp, Campinas, SP, Brazil
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Nam JS, Park SY, Lee HJ, Lee SO, Jang HL, Rhee YH. Correlation Between Acetogenin Content and Antiproliferative Activity of Pawpaw (Asimina triloba [L.] Dunal) Fruit Pulp Grown in Korea. J Food Sci 2018; 83:1430-1435. [PMID: 29660776 DOI: 10.1111/1750-3841.14144] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 02/25/2018] [Accepted: 03/04/2018] [Indexed: 11/29/2022]
Abstract
Pawpaw (Asimina triloba [L.] Dunal) is widely cultivated in Korea for its fruit, which contains bioactive compounds, such as acetogenins. In this study, we investigated the acetogenin content and antiproliferative activity of pawpaw fruit pulp against various cancer cell lines and evaluated the relationship between these two variables at different maturation stages. Unripe fruit had higher antiproliferative activity than ripe fruit, and the activity level depended on acetogenin content. In addition, the presence of specific acetogenins was related to inhibition of certain cancer cell types. The unripe fruit methanol and ethanol extracts (URFM and URFE, respectively) that were rich in acetogenins strongly inhibited the growth of HT-1080, HeLa, and AGS cells by >50% at concentrations of less than 115 μg/mL. These findings indicate that URFM and URFE have therapeutic potential for the treatment of cancer, and our study establishes a basis for further mechanistic studies of the antiproliferative activity of pawpaw fruit. However, it is necessary to further study the anticancer activity of acetogenins from pawpaw fruit using in vivo activity approaches. PRACTICAL APPLICATION Pawpaw (Asimina triloba) contains acetogenins that can inhibit the growth of cancer cells. In our study, we demonstrate that the antiproliferative activity is higher in unripe than in ripe fruit and depends on acetogenin content. Our results indicate that the extract of unripe pawpaw fruit has value not only as a functional food, but has therapeutic potential for the treatment of cancer as a naturally derived substance that may be less toxic than conventional chemotherapy drugs.
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Affiliation(s)
- Jin-Sik Nam
- Dept. of Food and Nutrition, Suwon Women's Univ, 1098 Juseok-ro, Bongdam-eup, Hwaseong-si, Gyeonggi, 18333, Republic of Korea.,Food Analysis Research Center, Suwon Women's Univ, 1098 Juseok-ro, Bongdam-eup, Hwaseong-si, Gyeonggi, 18333, Republic of Korea.,Dept. of Microbiology and Molecular Biology, Chungnam Natl. Univ., 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
| | - Seo-Yeon Park
- Food Analysis Research Center, Suwon Women's Univ., 1098 Juseok-ro, Bongdam-eup, Hwaseong-si, Gyeonggi, 18333, Republic of Korea
| | - Hyo-Jeong Lee
- College of Korean Medicine and Dept. of Science in Korean Medicine, Graduate School, Kyung Hee Univ., 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Seon-Ok Lee
- College of Korean Medicine and Dept. of Science in Korean Medicine, Graduate School, Kyung Hee Univ., 26 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, Republic of Korea
| | - Hye-Lim Jang
- Food Analysis Research Center, Suwon Women's Univ., 1098 Juseok-ro, Bongdam-eup, Hwaseong-si, Gyeonggi, 18333, Republic of Korea
| | - Young Ha Rhee
- Dept. of Microbiology and Molecular Biology, Chungnam Natl. Univ., 99 Daehak-ro, Yuseong-gu, Daejeon, 34134, Republic of Korea
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Oguri Y, Watanabe M, Ishikawa T, Kamada T, Vairappan CS, Matsuura H, Kaneko K, Ishii T, Suzuki M, Yoshimura E, Nogata Y, Okino T. New Marine Antifouling Compounds from the Red Alga Laurencia sp. Mar Drugs 2017; 15:E267. [PMID: 28846653 DOI: 10.3390/md15090267] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 08/20/2017] [Accepted: 08/23/2017] [Indexed: 02/06/2023] Open
Abstract
Six new compounds, omaezol, intricatriol, hachijojimallenes A and B, debromoaplysinal, and 11,12-dihydro-3-hydroxyretinol have been isolated from four collections of Laurencia sp. These structures were determined by MS and NMR analyses. Their antifouling activities were evaluated together with eight previously known compounds isolated from the same samples. In particular, omaezol and hachijojimallene A showed potent activities (EC50 = 0.15–0.23 µg/mL) against larvae of the barnacle Amphibalanus amphitrite.
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Costa MS, Santana AE, Oliveira LL, Zanuncio JC, Serrão JE. Toxicity of squamocin on Aedes aegypti larvae, its predators and human cells. Pest Manag Sci 2017; 73:636-640. [PMID: 27366879 DOI: 10.1002/ps.4350] [Citation(s) in RCA: 7] [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] [Received: 11/16/2015] [Revised: 06/22/2016] [Accepted: 06/28/2016] [Indexed: 06/06/2023]
Abstract
BACKGROUND The mosquito Aedes aegypti transmits a virus that causes diverse human diseases, and control of the vector is an important strategy to avoid disease propagation. Plants in the family Annonaceae are recognised as sources of molecules with uses in the medical and agriculture fields. Molecules of secondary metabolites of Annonaceae plants exhibit insecticidal potential against insect pests and vectors, especially acetogenins, showing high toxicity at low doses, which has encouraged research into producing new insecticide molecules. Herein, we identify an acetogenin from Annona mucosa seeds (chemical analysis) and provide the results of toxicity tests against larvae of A. aegypti (target insect) and its predators Culex bigoti and Toxorhynchites theobaldi (non-target insects) and cytotoxicity to human leukocytes. RESULTS We identified squamocin (C37 H66 O7 ), a fatty acid with a bis-tetrahydrofuran ring. In A. aegypti, this compound caused behavioural disturbance before larval death and high mortality at low concentrations (LC50 = 0.01 µg mL-1 and LC90 = 0.11 µg mL-1 ). However, in predators and human leukocytes, squamocin showed no toxicity effect, indicating the selectivity of this molecule for non-target organisms. CONCLUSION We identified squamocin from A. mucosa seeds, which exhibited lethal action against A. aegypti and showed selectivity for non-target insects and low cytotoxicity to human cells. © 2016 Society of Chemical Industry.
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Affiliation(s)
- Marilza S Costa
- Department of Entomology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - Antônio Eg Santana
- Institute of Chemistry and Biotechnology, Federal University of Alagoas, Maceió, Alagoas, Brazil
| | - Leandro L Oliveira
- Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - José C Zanuncio
- Department of Entomology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
| | - José E Serrão
- Laboratory of Ultrastructural Cell, Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais, Brazil
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Florence GJ, Fraser AL, Gould ER, King EFB, Menzies SK, Morris JC, Tulloch LB, Smith TK. Non-natural acetogenin analogues as potent Trypanosoma brucei inhibitors. ChemMedChem 2014; 9:2548-56. [PMID: 25145275 DOI: 10.1002/cmdc.201402272] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 11/12/2022]
Abstract
Neglected tropical diseases remain a serious global health concern. Here, a series of novel bis-tetrahydropyran 1,4-triazole analogues based on the framework of chamuvarinin, a polyketide natural product isolated from the annonaceae plant species are detailed. The analogues synthesized display low micromolar trypanocidal activities towards both bloodstream and insect forms of Trypanosoma brucei, the causative agent of African sleeping sickness, also known as Human African Trypanosomiasis (HAT). A divergent synthetic strategy was adopted for the synthesis of the key tetrahydropyran intermediates to enable rapid access to diastereochemical variation either side of the 1,4-triazole core. The resulting diastereomeric analogues displayed varying degrees of trypanocidal activity and selectivity in structure-activity relationship studies. Together, the biological potency and calculated lipophilicity values indicate that while there is room for improvement, these derivatives may represent a promising novel class of anti-HAT agents.
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Affiliation(s)
- Gordon J Florence
- EaStCHEM School of Chemistry, Biomedical Sciences Research Complex, University of St Andrews, North Haugh, St Andrews, KY16 9ST (UK).
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