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Fonseca-Silva F, Inacio JDF, Canto-Cavalheiro MM, Menna-Barreto RFS, Almeida-Amaral EE. Oral Efficacy of Apigenin against Cutaneous Leishmaniasis: Involvement of Reactive Oxygen Species and Autophagy as a Mechanism of Action. PLoS Negl Trop Dis 2016; 10:e0004442. [PMID: 26862901 PMCID: PMC4749305 DOI: 10.1371/journal.pntd.0004442] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Accepted: 01/17/2016] [Indexed: 01/08/2023] Open
Abstract
Background The treatment for leishmaniasis is currently based on pentavalent antimonials and amphotericin B; however, these drugs result in numerous adverse side effects. The lack of affordable therapy has necessitated the urgent development of new drugs that are efficacious, safe, and more accessible to patients. Natural products are a major source for the discovery of new and selective molecules for neglected diseases. In this paper, we evaluated the effect of apigenin on Leishmania amazonensis in vitro and in vivo and described the mechanism of action against intracellular amastigotes of L. amazonensis. Methodology/Principal Finding Apigenin reduced the infection index in a dose-dependent manner, with IC50 values of 4.3 μM and a selectivity index of 18.2. Apigenin induced ROS production in the L. amazonensis-infected macrophage, and the effects were reversed by NAC and GSH. Additionally, apigenin induced an increase in the number of macrophages autophagosomes after the infection, surrounding the parasitophorous vacuole, suggestive of the involvement of host autophagy probably due to ROS generation induced by apigenin. Furthermore, apigenin treatment was also effective in vivo, demonstrating oral bioavailability and reduced parasitic loads without altering serological toxicity markers. Conclusions/Significance In conclusion, our study suggests that apigenin exhibits leishmanicidal effects against L. amazonensis-infected macrophages. ROS production, as part of the mechanism of action, could occur through the increase in host autophagy and thereby promoting parasite death. Furthermore, our data suggest that apigenin is effective in the treatment of L. amazonensis-infected BALB/c mice by oral administration, without altering serological toxicity markers. The selective in vitro activity of apigenin, together with excellent theoretical predictions of oral availability, clear decreases in parasite load and lesion size, and no observed compromises to the overall health of the infected mice encourage us to supports further studies of apigenin as a candidate for the chemotherapeutic treatment of leishmaniasis. Leishmaniasis is an important neglected disease caused by protozoa of the genus Leishmania and affects more than 12 million people worldwide. Pentavalent antimonials and amphotericin B have been used for decades to treat leishmaniasis; however, these drugs result in numerous adverse side effects, have variable efficacy and are subject to parasite resistance. The lack of suitable therapy necessitates the development of novel antileishmanial compounds. In this study, we investigated the antileishmanial activity of apigenin in vitro and in vivo and described the mechanism of action against intracellular amastigotes of Leishmania amazonensis. Apigenin reduced the infection index in a dose-dependent manner and increased reactive oxygen species (ROS) generation. Additionally, apigenin induced an increase in the number of macrophages autophagosomes after the infection, surrounding the parasitophorous vacuole, suggestive of the involvement of host autophagy probably due to ROS generation induced by apigenin. Furthermore, treatment with apigenin was also effective in vivo, showing oral bioavailability and significantly reducing lesion sizes and parasite burden without altering serological toxicity markers.
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Affiliation(s)
- Fernanda Fonseca-Silva
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
| | - Job D. F. Inacio
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
| | - Marilene M. Canto-Cavalheiro
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
| | - Rubem F. S. Menna-Barreto
- Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
| | - Elmo E. Almeida-Amaral
- Laboratório de Bioquímica de Tripanosomatídeos, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Manguinhos, Rio de Janeiro, Brazil
- * E-mail:
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302
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Guo H, Ren F, Zhang L, Zhang X, Yang R, Xie B, Li Z, Hu Z, Duan Z, Zhang J. Kaempferol induces apoptosis in HepG2 cells via activation of the endoplasmic reticulum stress pathway. Mol Med Rep 2016; 13:2791-800. [PMID: 26847723 DOI: 10.3892/mmr.2016.4845] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Accepted: 12/11/2015] [Indexed: 11/05/2022] Open
Abstract
Kaempferol is a flavonoid compound that has gained importance due to its antitumor properties; however, the underlying mechanisms remain to be fully understood. The present study aimed to investigate the molecular mechanisms of the antitumor function of kaempferol in HepG2 hepatocellular carcinoma cells. Kaempferol was determined to reduce cell viability, increase lactate dehydrogenase activity and induce apoptosis in a concentration‑ and time‑dependent manner in HepG2 cells. Additionally, kaempferol‑induced apoptosis possibly acts via the endoplasmic reticulum (ER) stress pathway, due to the significant increase in the protein expression levels of glucose‑regulated protein 78, glucose‑regulated protein 94, protein kinase R‑like ER kinase, inositol‑requiring enzyme 1α, partial activating transcription factor 6 cleavage, caspase‑4, C/EBP homologous protein (CHOP) and cleaved caspase‑3. The pro‑apoptotic activity of kaempferol was determined to be due to induction of the ER stress‑CHOP pathway, as: i) ER stress was blocked by 4‑phenyl butyric acid (4‑PBA) pretreatment and knockdown of CHOP with small interfering RNA, which resulted in alleviation of kaempferol‑induced HepG2 cell apoptosis; and ii) transfection with plasmid overexpressing CHOP reversed the protective effect of 4‑PBA in kaempferol‑induced HepG2 cells and increased the apoptotic rate. Thus, kaempferol promoted HepG2 cell apoptosis via induction of the ER stress‑CHOP signaling pathway. These observations indicate that kaempferol may be used as a potential chemopreventive treatment strategy for patients with hepatocellular carcinoma.
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Affiliation(s)
- Haiqing Guo
- Department of Hepatitis C and Drug‑Induced Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Feng Ren
- Beijing Institute of Hepatology, Capital Medical University, Beijing 100069, P.R. China
| | - Li Zhang
- Department of Infectious Diseases, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
| | - Xiangying Zhang
- Beijing Institute of Hepatology, Capital Medical University, Beijing 100069, P.R. China
| | - Rongrong Yang
- Beijing Institute of Hepatology, Capital Medical University, Beijing 100069, P.R. China
| | - Bangxiang Xie
- Beijing Institute of Hepatology, Capital Medical University, Beijing 100069, P.R. China
| | - Zhuo Li
- Beijing Institute of Hepatology, Capital Medical University, Beijing 100069, P.R. China
| | - Zhongjie Hu
- Department of Hepatitis C and Drug‑Induced Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Zhongping Duan
- Artificial Liver Center, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
| | - Jing Zhang
- Department of Hepatitis C and Drug‑Induced Liver Disease, Beijing Youan Hospital, Capital Medical University, Beijing 100069, P.R. China
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303
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Farah SI, Abdelrahman AA, North EJ, Chauhan H. Opportunities and Challenges for Natural Products as Novel Antituberculosis Agents. Assay Drug Dev Technol 2016; 14:29-38. [DOI: 10.1089/adt.2015.673] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Shrouq I. Farah
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, Omaha, Nebraska
| | | | - E. Jeffrey North
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, Omaha, Nebraska
| | - Harsh Chauhan
- Department of Pharmacy Sciences, School of Pharmacy and Health Professions, Creighton University, Omaha, Nebraska
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304
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Wu Q, Wang Z, Li J, Qiu S, Cao D, Liu Z, Guan R. 3-Hydroxyflavone derivatives synthesized by a new simple method as chemosensors for cyanide anions. RSC Adv 2016. [DOI: 10.1039/c6ra11415f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Two 3-hydroxyflavone derivatives as chemosensors for cyanide were synthesized by one step simple condensation, cyclization and subsequent oxidation reaction catalyzed by pyrrolidine, which shows great convenience compared with traditional method.
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Affiliation(s)
- Qianqian Wu
- School of Material Science and Engineering
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- China
| | - Zian Wang
- School of Material Science and Engineering
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- China
| | - Jiale Li
- School of Material Science and Engineering
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- China
| | - Shuang Qiu
- School of Material Science and Engineering
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- China
| | - Duxia Cao
- School of Material Science and Engineering
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- China
| | - Zhiqiang Liu
- State Key Laboratory of Crystal Materials
- Shandong University
- Jinan 250100
- China
| | - Ruifang Guan
- School of Material Science and Engineering
- Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials
- University of Jinan
- Jinan 250022
- China
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305
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Lee J, Yu J, Son SH, Heo J, Kim T, An JY, Inn KS, Kim NJ. A versatile approach to flavones via a one-pot Pd(ii)-catalyzed dehydrogenation/oxidative boron-Heck coupling sequence of chromanones. Org Biomol Chem 2016; 14:777-784. [DOI: 10.1039/c5ob01911g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A variety of flavones were expediently synthesized from readily accessible chromanones via a one-pot sequence involving Pd(ii)-catalyzed dehydrogenation and oxidative boron-Heck coupling with arylboronic acid pinacol esters.
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Affiliation(s)
- Jun Lee
- College of Pharmacy
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Jihyun Yu
- College of Pharmacy
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Seung Hwan Son
- College of Pharmacy
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Jinyuk Heo
- College of Pharmacy
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Taelim Kim
- Department of Life and Nanopharmaceutical Science
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Ji-Young An
- College of Pharmacy
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Kyung-Soo Inn
- College of Pharmacy
- Kyung Hee University
- Seoul
- Republic of Korea
| | - Nam-Jung Kim
- College of Pharmacy
- Kyung Hee University
- Seoul
- Republic of Korea
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306
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307
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Singh M, Silakari O. Design, synthesis and biological evaluation of novel 2-phenyl-1-benzopyran-4-one derivatives as potential poly-functional anti-Alzheimer's agents. RSC Adv 2016. [DOI: 10.1039/c6ra17678j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The development of Multi-Target Directed Ligands (MTDLs) has emerged as a promising approach for targeting the complex etiology of Alzheimer's disease (AD).
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Affiliation(s)
- Manjinder Singh
- Molecular Modeling Lab
- Department of Pharmaceutical Sciences and Drug Research
- Punjabi University
- Patiala
- India
| | - Om Silakari
- Molecular Modeling Lab
- Department of Pharmaceutical Sciences and Drug Research
- Punjabi University
- Patiala
- India
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308
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Bouchet S, Dauzonne D, Bauvois B, Piedfer M, Susin S. In vitro activity of some flavonoid derivatives on human leukemic myeloid cells: evidence for aminopeptidase-N (CD13) inhibition, antiproliferative and cell death properties. AIMS MOLECULAR SCIENCE 2016. [DOI: 10.3934/molsci.2016.3.368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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309
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Rimac H, Debeljak Ž, Šakić D, Weitner T, Gabričević M, Vrček V, Zorc B, Bojić M. Structural and electronic determinants of flavonoid binding to human serum albumin: an extensive ligand-based study. RSC Adv 2016. [DOI: 10.1039/c6ra17796d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
The most prominent features responsible for binding of flavonoid aglycones to the IIA region of human serum albumin (HSA) were determined based onin vitrofluorescence measurements and density functional theory calculations.
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Affiliation(s)
- Hrvoje Rimac
- University of Zagreb
- Faculty of Pharmacy and Biochemistry
- Department of Medicinal Chemistry
- HR-10000 Zagreb
- Croatia
| | - Željko Debeljak
- Clinical Hospital Center Osijek
- Osijek
- Croatia
- J.J. Strossmayer University of Osijek
- Faculty of Medicine
| | - Davor Šakić
- University of Zagreb
- Faculty of Pharmacy and Biochemistry
- Department of Medicinal Chemistry
- HR-10000 Zagreb
- Croatia
| | - Tin Weitner
- University of Zagreb
- Faculty of Pharmacy and Biochemistry
- Department of Medicinal Chemistry
- HR-10000 Zagreb
- Croatia
| | - Mario Gabričević
- University of Zagreb
- Faculty of Pharmacy and Biochemistry
- Department of Medicinal Chemistry
- HR-10000 Zagreb
- Croatia
| | - Valerije Vrček
- University of Zagreb
- Faculty of Pharmacy and Biochemistry
- Department of Medicinal Chemistry
- HR-10000 Zagreb
- Croatia
| | - Branka Zorc
- University of Zagreb
- Faculty of Pharmacy and Biochemistry
- Department of Medicinal Chemistry
- HR-10000 Zagreb
- Croatia
| | - Mirza Bojić
- University of Zagreb
- Faculty of Pharmacy and Biochemistry
- Department of Medicinal Chemistry
- HR-10000 Zagreb
- Croatia
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310
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Adem S, Aslan A, Ahmed I, Krohn K, Guler C, Comaklı V, Demirdag R, Kuzu M. Inhibitory and Activating Effects of Some Flavonoid Derivatives on Human Pyruvate Kinase Isoenzyme M2. Arch Pharm (Weinheim) 2015; 349:132-6. [DOI: 10.1002/ardp.201500357] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 12/01/2015] [Accepted: 12/04/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Sevki Adem
- Department of Chemistry, Faculty of Science; Cankiri Karatekin University; Cankiri Turkey
| | | | - Ishtiaq Ahmed
- Institute for Biological Interfaces (IBG-1); Karlsruhe Institute of Technology (KIT); Eggenstein-Leopoldshafen Germany
- Department of Organic Chemistry; University of Paderborn; Paderborn Germany
| | - Karsten Krohn
- Department of Organic Chemistry; University of Paderborn; Paderborn Germany
| | - Caglar Guler
- Department of Chemistry, Faculty of Science; Cankiri Karatekin University; Cankiri Turkey
| | - Veysel Comaklı
- Faculty of Pharmacy; Agrı Ibrahim Cecen University; Agri Turkey
| | | | - Muslum Kuzu
- Faculty of Pharmacy; Agrı Ibrahim Cecen University; Agri Turkey
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311
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OU XIANHONG, BIN XIAOHONG, WANG LUZHEN, LI MIAOLING, YANG YAN, FAN XINRONG, ZENG XIAORONG. Myricetin inhibits Kv1.5 channels in HEK293 cells. Mol Med Rep 2015; 13:1725-31. [DOI: 10.3892/mmr.2015.4704] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Accepted: 07/10/2015] [Indexed: 11/06/2022] Open
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312
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Merlo S, Basile L, Giuffrida ML, Sortino MA, Guccione S, Copani A. Identification of 5-Methoxyflavone as a Novel DNA Polymerase-Beta Inhibitor and Neuroprotective Agent against Beta-Amyloid Toxicity. JOURNAL OF NATURAL PRODUCTS 2015; 78:2704-2711. [PMID: 26517378 DOI: 10.1021/acs.jnatprod.5b00621] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Cell-cycle reactivation is a core feature of degenerating neurons in Alzheimer's disease (AD) and Parkinson's disease (PD). A variety of stressors, including β-amyloid (Aβ) in the case of AD, can force neurons to leave quiescence and to initiate an ectopic DNA replication process, leading to neuronal death rather than division. As the primary polymerase (pol) involved in neuronal DNA replication, DNA pol-β contributes to neuronal death, and DNA pol-β inhibitors may prove to be effective neuroprotective agents. Currently, specific and highly active DNA pol-β inhibitors are lacking. Nine putative DNA pol-β inhibitors were identified in silico by querying the ZINC database, containing more than 35 million purchasable compounds. Following pharmacological evaluation, only 5-methoxyflavone (1) was validated as an inhibitor of DNA pol-β activity. Cultured primary neurons are a useful model to investigate the neuroprotective effects of potential DNA pol-β inhibitors, since these neurons undergo DNA replication and death when treated with Aβ. Consistent with the inhibition of DNA pol-β, 5-methoxyflavone (1) reduced the number of S-phase neurons and the ensuing apoptotic death triggered by Aβ. 5-Methoxyflavone (1) is the first flavonoid compound able to halt neurodegeneration via a definite molecular mechanism rather than through general antioxidant and anti-inflammatory properties.
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Affiliation(s)
| | | | - Maria Laura Giuffrida
- Institute of Biostructure and Bioimaging, National Research Council (CNR) , Catania, Italy
| | | | | | - Agata Copani
- Institute of Biostructure and Bioimaging, National Research Council (CNR) , Catania, Italy
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313
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Imran S, Taha M, Ismail NH, Kashif SM, Rahim F, Jamil W, Wahab H, Khan KM. Synthesis,In vitroand Docking Studies of New Flavone Ethers asα-Glucosidase Inhibitors. Chem Biol Drug Des 2015; 87:361-73. [DOI: 10.1111/cbdd.12666] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Revised: 08/24/2015] [Accepted: 09/07/2015] [Indexed: 12/20/2022]
Affiliation(s)
- Syahrul Imran
- Atta-ur-Rahman Institute for Natural Product Discovery; Universiti Teknologi MARA; Puncak Alam Campus Selangor DE 42300 Malaysia
- Faculty of Applied Sciences; Universiti Teknologi MARA; Shah Alam, Selangor DE 40450 Malaysia
| | - Muhammad Taha
- Atta-ur-Rahman Institute for Natural Product Discovery; Universiti Teknologi MARA; Puncak Alam Campus Selangor DE 42300 Malaysia
- Faculty of Applied Sciences; Universiti Teknologi MARA; Shah Alam, Selangor DE 40450 Malaysia
| | - Nor Hadiani Ismail
- Atta-ur-Rahman Institute for Natural Product Discovery; Universiti Teknologi MARA; Puncak Alam Campus Selangor DE 42300 Malaysia
- Faculty of Applied Sciences; Universiti Teknologi MARA; Shah Alam, Selangor DE 40450 Malaysia
| | - Syed Muhammad Kashif
- Institute of Advance Research Studies in Chemical Sciences; University of Sindh; 76080 Jamshoro Pakistan
| | - Fazal Rahim
- Department of Chemistry; Hazara University; 21300 Mansehra Pakistan
| | - Waqas Jamil
- Institute of Advance Research Studies in Chemical Sciences; University of Sindh; 76080 Jamshoro Pakistan
| | - Habibah Wahab
- Pharmaceutical Design and Simulation Laboratory; School of Pharmaceutical Sciences; Universiti Sains Malaysia; 11800 Pulau Pinang Malaysia
| | - Khalid Mohammed Khan
- H. E. J. Research Institute of Chemistry; International Center for Chemical and Biological Sciences; University of Karachi; Karachi 75270 Pakistan
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314
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Yatabe T, Jin X, Yamaguchi K, Mizuno N. Gold Nanoparticles Supported on a Layered Double Hydroxide as Efficient Catalysts for the One‐Pot Synthesis of Flavones. Angew Chem Int Ed Engl 2015; 54:13302-6. [DOI: 10.1002/anie.201507134] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 08/21/2015] [Indexed: 01/01/2023]
Affiliation(s)
- Takafumi Yatabe
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
| | - Xiongjie Jin
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
| | - Kazuya Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
| | - Noritaka Mizuno
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
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315
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Zhou X, Yuping Z, Zhao H, Liang J, Zhang Y, Shi S. Antioxidant homoisoflavonoids from Polygonatum odoratum. Food Chem 2015; 186:63-8. [DOI: 10.1016/j.foodchem.2015.02.058] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Revised: 02/08/2015] [Accepted: 02/12/2015] [Indexed: 01/07/2023]
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316
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Imran S, Taha M, Ismail NH, Kashif SM, Rahim F, Jamil W, Hariono M, Yusuf M, Wahab H. Synthesis of novel flavone hydrazones: in-vitro evaluation of α-glucosidase inhibition, QSAR analysis and docking studies. Eur J Med Chem 2015; 105:156-70. [PMID: 26491979 DOI: 10.1016/j.ejmech.2015.10.017] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2015] [Revised: 09/08/2015] [Accepted: 10/07/2015] [Indexed: 11/28/2022]
Abstract
Thirty derivatives of flavone hydrazone (5-34) had been synthesized through a five-step reaction and screened for their α-glucosidase inhibition activity. Chalcone 1 was synthesized through aldol condensation then subjected through oxidative cyclization, esterification, and condensation reaction to afford the final products. The result for baker's yeast α-glucosidase (EC 3.2.1.20) inhibition assay showed that all compounds are active with reference to the IC50 value of the acarbose (standard drug) except for compound 3. Increase in activity observed for compounds 2 to 34 clearly highlights the importance of flavone, hydrazide and hydrazone linkage in suppressing the activity of α-glucosidase. Additional functional group on N-benzylidene moiety further enhances the activity significantly. Compound 5 (15.4 ± 0.22 μM), a 2,4,6-trihydroxy substituted compound, is the most active compound in the series. Other compounds which were found to be active are those having chlorine, fluorine, and nitro substituents. Compounds with methoxy, pyridine, and methyl substituents are weakly active. Further studies showed that they are not active in inhibiting histone deacetylase activity and do not possess any cytotoxic properties. QSAR model was being developed to further identify the structural requirements contributing to the activity. Using Discovery Studio (DS) 2.5, various 2D descriptors were being used to develop the model. The QSAR model is able to predict the pIC50 and could be used as a prediction tool for compounds having the same skeletal framework. Molecular docking was done for all compounds using homology model of α-glucosidase to identify important binding modes responsible for inhibition activity.
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Affiliation(s)
- Syahrul Imran
- Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Selangor D.E., Malaysia; Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, 40450, Selangor D.E., Malaysia
| | - Muhammad Taha
- Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Selangor D.E., Malaysia; Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, 40450, Selangor D.E., Malaysia.
| | - Nor Hadiani Ismail
- Atta-ur-Rahman Institute for Natural Product Discovery, Universiti Teknologi MARA, Puncak Alam Campus, 42300, Selangor D.E., Malaysia; Faculty of Applied Sciences, Universiti Teknologi MARA, Shah Alam, 40450, Selangor D.E., Malaysia.
| | - Syed Muhammad Kashif
- Institute of Advance Research Studies in Chemical Sciences, University of Sindh, 76080, Jamshoro, Pakistan
| | - Fazal Rahim
- Department of Chemistry, Hazara University, 21300, Mansehra, Pakistan
| | - Waqas Jamil
- Institute of Advance Research Studies in Chemical Sciences, University of Sindh, 76080, Jamshoro, Pakistan
| | - Maywan Hariono
- Pharmaceutical Design and Simulation Laboratory, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Muhammad Yusuf
- Pharmaceutical Design and Simulation Laboratory, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
| | - Habibah Wahab
- Pharmaceutical Design and Simulation Laboratory, School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800, Pulau Pinang, Malaysia
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317
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Kozak W, Daśko M, Masłyk M, Kubiński K, Rachon J, Demkowicz S. Steroid Sulfatase Inhibitors Based on Phosphate and Thiophosphate Flavone Analogs. Drug Dev Res 2015; 76:450-62. [DOI: 10.1002/ddr.21281] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 09/07/2015] [Indexed: 01/04/2023]
Affiliation(s)
- Witold Kozak
- Department of Organic Chemistry, Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Mateusz Daśko
- Department of Organic Chemistry, Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Maciej Masłyk
- Department of Molecular Biology, Faculty of Biotechnology and Environment Sciences; The John Paul II Catholic University of Lublin; Konstantynów 1i 20-708 Lublin Poland
| | - Konrad Kubiński
- Department of Molecular Biology, Faculty of Biotechnology and Environment Sciences; The John Paul II Catholic University of Lublin; Konstantynów 1i 20-708 Lublin Poland
| | - Janusz Rachon
- Department of Organic Chemistry, Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
| | - Sebastian Demkowicz
- Department of Organic Chemistry, Chemical Faculty; Gdansk University of Technology; Narutowicza 11/12 80-233 Gdansk Poland
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318
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Yatabe T, Jin X, Yamaguchi K, Mizuno N. Gold Nanoparticles Supported on a Layered Double Hydroxide as Efficient Catalysts for the One‐Pot Synthesis of Flavones. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201507134] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Takafumi Yatabe
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
| | - Xiongjie Jin
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
| | - Kazuya Yamaguchi
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
| | - Noritaka Mizuno
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7‐3‐1 Hongo, Bunkyo‐ku, Tokyo 113‐8656 (Japan)
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319
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OLARU OCTAVIANTUDOREL, VENABLES LUANNE, VAN DE VENTER MARYNA, NITULESCU GEORGEMIHAI, MARGINA DENISA, SPANDIDOS DEMETRIOSA, TSATSAKIS ARISTIDISM. Anticancer potential of selected Fallopia Adans species. Oncol Lett 2015; 10:1323-1332. [PMID: 26622671 PMCID: PMC4533735 DOI: 10.3892/ol.2015.3453] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Accepted: 07/02/2015] [Indexed: 01/03/2023] Open
Abstract
The aim of the present study was to determine the anticancer potential of three species belonging to the Fallopia genus (Polygonaceae): Fallopia convolvulus (F. convolvulus, Fallopia dumetorum (F. dumetorum) and Fallopia aubertii (F. aubertii). For this purpose, crude extracts were obtained and characterized for their phenolic and flavonoid total content and examined for their anticancer activity on three tumor cell lines: breast cancer (MCF7), colon carcinoma (Caco-2) and cervical cancer (HeLa) cells. The cytotoxic potential of the three species was assessed by MTT assay, cell cycle analysis and by the evaluation of mitochondrial membrane potential (MMP). The acute toxicity of the extracts was evaluated using one in vitro cell model (Vero cells, an African Green monkey kidney cell line) and two invertebrate in vivo models (Daphnia magna and Artemia salina). The highest total phenolic and flavonoid content was found in the F. aubertii flower extracts. The cytotoxic effects of the extracts from F. aubertii and F. convolvulus on all three cell lines were examined at concentrations ranging from 3 to 300 µg/ml. G2/M cell cycle arrest was induced by all the extracts, and a significant increase in the subG1 cell population was observed. The hydroethanolic extract from the flowers of F. aubertii induced cell apoptosis more rapidly than the other extracts. The MMP indicates the involvement of the mitochondria in the induction of apoptosis. A positive correlation between the total phenolic content of the extracts and the IC50 values against the HeLa cells was also noted. None of the extracts exhibited significantly toxic effects. Considering the antitumor potential of F. aubertii and F. convolvulus, these two species may represent a good source of plant extracts with anticancer properties.
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Affiliation(s)
- OCTAVIAN TUDOREL OLARU
- Faculty of Pharmacy, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020956, Romania
| | - LUANNE VENABLES
- Department of Biochemistry and Microbiology, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South Africa
| | - MARYNA VAN DE VENTER
- Department of Biochemistry and Microbiology, Nelson Mandela Metropolitan University, Port Elizabeth 6031, South Africa
| | - GEORGE MIHAI NITULESCU
- Faculty of Pharmacy, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020956, Romania
| | - DENISA MARGINA
- Faculty of Pharmacy, ‘Carol Davila’ University of Medicine and Pharmacy, Bucharest 020956, Romania
| | - DEMETRIOS A. SPANDIDOS
- Department of Clinical Virology, School of Medicine, University of Crete, Heraklion 71003, Greece
| | - ARISTIDIS M. TSATSAKIS
- Department of Forensic Sciences and Toxicology, Faculty of Medicine, University of Crete, Heraklion 71003, Greece
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320
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Lai CS, Wu JC, Ho CT, Pan MH. Disease chemopreventive effects and molecular mechanisms of hydroxylated polymethoxyflavones. Biofactors 2015; 41:301-13. [PMID: 26453173 DOI: 10.1002/biof.1236] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Accepted: 09/01/2015] [Indexed: 01/12/2023]
Abstract
Recent increasing attention in research of polymethoxyflavones (PMFs) from Citrus genus because of their wide range of biological properties has been reported in various studies. Hydroxylated PMFs are unique flavones and recognized as the methoxy group of PMFs that is substituted for hydroxyl one. Hydroxylated PMFs are naturally existed in citrus peel and other plants as well as occurred as metabolites of their PMFs counterparts. Several in vitro and in vivo studies have documented the chemopreventive effects of hydroxylated PMFs including anti-cancer, anti-inflammation, anti-atherosclerosis, and neuroprotection. They function to regulate cell death, proliferation, differentiation, repair, and metabolism through acting on modulation of signaling cascade, gene transcription, and protein function and enzyme activity. The mechanisms of action of hydroxylated PMFs in disease chemoprevention depend on their structure, the number, and position of hydroxyl group. Although the efficacy of hydroxylated PMFs in chemoprevention and the oral bioavailability requires further investigation, they still provide great promise for improving human health. This review highlights the recent published data of hydroxylated PMFs with chemopreventive potential and the underlying mechanism involved.
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Affiliation(s)
- Ching-Shu Lai
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Jia-Ching Wu
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
| | - Chi-Tang Ho
- Department of Food Science, Rutgers University, New Brunswick, NJ
| | - Min-Hsiung Pan
- Institute of Food Science and Technology, National Taiwan University, Taipei, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung, Taiwan
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321
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Zhu MZ, Wu W, Jiao LL, Yang PF, Guo MQ. Analysis of Flavonoids in Lotus (Nelumbo nucifera) Leaves and Their Antioxidant Activity Using Macroporous Resin Chromatography Coupled with LC-MS/MS and Antioxidant Biochemical Assays. Molecules 2015; 20:10553-65. [PMID: 26060918 PMCID: PMC6272455 DOI: 10.3390/molecules200610553] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 05/29/2015] [Indexed: 11/16/2022] Open
Abstract
Lotus (Nelumbo nucifera) leaves, a traditional Chinese medicinal herb, are rich in flavonoids. In an effort to thoroughly analyze their flavonoid components, macroporous resin chromatography coupled with HPLC-MS/MS was employed to simultaneously enrich and identify flavonoids from lotus leaves. Flavonoids extracted from lotus leaves were selectively enriched in the macroporous resin column, eluted subsequently as fraction II, and successively subjected to analysis with the HPLC-MS/MS and bioactivity assays. Altogether, fourteen flavonoids were identified, four of which were identified from lotus leaves for the first time, including quercetin 3-O-rhamnopyranosyl-(1→2)-glucopyranoside, quercetin 3-O-arabinoside, diosmetin 7-O-hexose, and isorhamnetin 3-O-arabino- pyranosyl-(1→2)-glucopyranoside. Further bioactivity assays revealed that these flavonoids from lotus leaves possess strong antioxidant activity, and demonstrate very good potential to be explored as food supplements or even pharmaceutical products to improve human health.
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Affiliation(s)
- Ming-Zhi Zhu
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China.
| | - Wei Wu
- Changchun University of Chinese Traditional Medicine, Changchun 130000, China.
| | - Li-Li Jiao
- Changchun University of Chinese Traditional Medicine, Changchun 130000, China.
| | - Ping-Fang Yang
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China.
| | - Ming-Quan Guo
- Key Laboratory of Plant Germplasm Enhancement and Specialty Agriculture, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China.
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322
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Wang CQ, Chen X, Jiang JH, Tang H, Zhu KK, Zhou YJ, Zheng CH, Zhu J. Acidic rearrangement of benzyl group in flavone benzyl ethers and its regioselectivity. CHINESE CHEM LETT 2015. [DOI: 10.1016/j.cclet.2015.03.035] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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323
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Lea MA. Flavonol Regulation in Tumor Cells. J Cell Biochem 2015; 116:1190-4. [DOI: 10.1002/jcb.25098] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 01/23/2015] [Indexed: 01/22/2023]
Affiliation(s)
- Michael A. Lea
- Department of Microbiology; Biochemistry and Molecular Genetics; Rutgers New Jersey Medical School; Newark New Jersey 07103
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324
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Li Y, Wang Q, He J, Yan J, Li H. Fluorescence spectroscopy and docking study in two flavonoids, isolated tectoridin and its aglycone tectorigenin, interacting with human serum albumin: a comparison study. LUMINESCENCE 2015; 31:38-46. [DOI: 10.1002/bio.2918] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Revised: 03/12/2015] [Accepted: 03/12/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Yuanzhi Li
- College of Chemical Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Qing Wang
- College of Chemical Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Jiawei He
- College of Chemical Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Jin Yan
- College of Chemical Engineering; Sichuan University; Chengdu 610065 People's Republic of China
| | - Hui Li
- College of Chemical Engineering; Sichuan University; Chengdu 610065 People's Republic of China
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325
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Fonseca-Silva F, Canto-Cavalheiro MM, Menna-Barreto RFS, Almeida-Amaral EE. Effect of Apigenin on Leishmania amazonensis Is Associated with Reactive Oxygen Species Production Followed by Mitochondrial Dysfunction. JOURNAL OF NATURAL PRODUCTS 2015; 78:880-884. [PMID: 25768915 DOI: 10.1021/acs.jnatprod.5b00011] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Leishmaniasis is an important neglected disease caused by protozoa of the genus Leishmania that affects more than 12 million people worldwide. Leishmaniasis treatment requires the administration of toxic and poorly tolerated drugs, and parasite resistance greatly reduces the efficacy of conventional medications. Apigenin (1), a naturally occurring plant flavone, has a wide range of reported biological effects. In this study, antileishmanial activity of 1 in vitro was investigated, and its mechanism of action against Leishmania amazonensis promastigotes was described. Treatment with 1 for 24 h resulted in concentration-dependent inhibition of cellular proliferation (IC50 = 23.7 μM) and increased reactive oxygen species (ROS) generation. Glutathione and N-acetyl-l-cysteine protected L. amazonensis from the effects of 1 and reduced ROS levels after the treatment. By contrast, oxidized glutathione did not reduce the levels of ROS caused by 1 by not preventing the proliferation inhibition. Apigenin 1 also induced an extensive swelling in parasite mitochondria, leading to an alteration of the mitochondrial membrane potential, rupture of the trans-Golgi network, and cytoplasmic vacuolization. These results demonstrate the leishmanicidal effect of 1 and suggest the involvement of ROS leading to mitochondrial collapse as part of the mechanism of action.
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Affiliation(s)
- Fernanda Fonseca-Silva
- †Laboratório de Bioquímica de Tripanosomatídeos and ‡Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, Brazil
| | - Marilene M Canto-Cavalheiro
- †Laboratório de Bioquímica de Tripanosomatídeos and ‡Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, Brazil
| | - Rubem F S Menna-Barreto
- †Laboratório de Bioquímica de Tripanosomatídeos and ‡Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, Brazil
| | - Elmo E Almeida-Amaral
- †Laboratório de Bioquímica de Tripanosomatídeos and ‡Laboratório de Biologia Celular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz, Av. Brasil 4365, Manguinhos, Rio de Janeiro, Brazil
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326
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Oroian M, Escriche I. Antioxidants: Characterization, natural sources, extraction and analysis. Food Res Int 2015; 74:10-36. [PMID: 28411973 DOI: 10.1016/j.foodres.2015.04.018] [Citation(s) in RCA: 265] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2014] [Revised: 04/03/2015] [Accepted: 04/12/2015] [Indexed: 12/18/2022]
Abstract
Recently many review papers regarding antioxidants from different sources and different extraction and quantification procedures have been published. However none of them has all the information regarding antioxidants (chemistry, sources, extraction and quantification). This article tries to take a different perspective on antioxidants for the new researcher involved in this field. Antioxidants from fruit, vegetables and beverages play an important role in human health, for example preventing cancer and cardiovascular diseases, and lowering the incidence of different diseases. In this paper the main classes of antioxidants are presented: vitamins, carotenoids and polyphenols. Recently, many analytical methodologies involving diverse instrumental techniques have been developed for the extraction, separation, identification and quantification of these compounds. Antioxidants have been quantified by different researchers using one or more of these methods: in vivo, in vitro, electrochemical, chemiluminescent, electron spin resonance, chromatography, capillary electrophoresis, nuclear magnetic resonance, near infrared spectroscopy and mass spectrometry methods.
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Affiliation(s)
- Mircea Oroian
- Faculty of Food Engineering, Stefan cel Mare University of Suceava, Suceava, Romania.
| | - Isabel Escriche
- Institute of Food Engineering for Development (IUIAD), Food Technology Department (DTA), Universitat Politècnica de València, Valencia, Spain
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327
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328
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Wang X, Wang Z, Sidhu PS, Desai UR, Zhou Q. 6-Hydroxyflavone and derivatives exhibit potent anti-inflammatory activity among mono-, di- and polyhydroxylated flavones in kidney mesangial cells. PLoS One 2015; 10:e0116409. [PMID: 25790236 PMCID: PMC4366162 DOI: 10.1371/journal.pone.0116409] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2014] [Accepted: 12/09/2014] [Indexed: 01/31/2023] Open
Abstract
Inflammatory responses by kidney mesangial cells play a critical role in the glomerulonephritis. The anti-inflammatory potential of nineteen mono-, di- and polyhydroxylated flavones including fisetin, quercetin, morin, tricetin, gossypetin, apigenin and myricetin were investigated on rat mesangial cells with lipopolysaccharide (LPS) as the inflammatory stimuli. 6-Hydroxyflavone and 4′,6-dihydroxyflavone exhibited high activity with IC50 in the range of 2.0 μM, a much better inhibition potential in comparison to the well-studied polyhydroxylated flavones. Interestingly, the anti-inflammatory activity was not due to direct quenching of NO radicals. Investigation on derivatives with methylation, acetylation or sulfation of 6-hydroxyl group revealed that 6-methoxyflavone was the most potent with an IC50 of 192 nM. Mechanistic study indicated that the anti-inflammatory activity of 6-methoxyflavone arose via the inhibition of LPS-induced downstream inducible NO synthase in mesangial cells. The identification of 6-hydroxyflavone and 6-methoxyflavone with potent anti-inflammatory activity in kidney mesangial cells provides a new flavone scaffold and direction to develop naturally derived products for potential nephritis prevention and treatment.
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Affiliation(s)
- Xing Wang
- Department of Nanomedicine and Biopharmaceuticals, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Zhiwei Wang
- Department of Nanomedicine and Biopharmaceuticals, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Preetpal Singh Sidhu
- Department of Medicinal Chemistry and Institute for Structural Biology and Drug Discovery, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Umesh R Desai
- Department of Medicinal Chemistry and Institute for Structural Biology and Drug Discovery, Virginia Commonwealth University, Richmond, Virginia, United States of America
| | - Qibing Zhou
- Department of Nanomedicine and Biopharmaceuticals, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, Hubei, China; Department of Medicinal Chemistry and Institute for Structural Biology and Drug Discovery, Virginia Commonwealth University, Richmond, Virginia, United States of America
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329
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Aslan E, Adem S. In vitro effects of some flavones on human pyruvate kinase isoenzyme M2. J Biochem Mol Toxicol 2015; 29:109-13. [PMID: 25388478 DOI: 10.1002/jbt.21673] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 09/09/2014] [Accepted: 09/14/2014] [Indexed: 12/13/2022]
Abstract
PKM2 is an important target for designing anticancer drug. Inhibitors and activators of this enzyme are suitable molecules for use in treating cancer. The aim of the present study was to investigate the effect of certain flavones on PKM2. Apigenin, wogonin, flavone, 3-hydroxyflavone, 5-hydroxyflavone, 6-hydroxyflavone, and 7-hydroxyflavone effectively inhibited PKM2, with IC50 in the range of 0.99-2.120 μM. The kinetic study indicated that these compounds acted as noncompetitive with Ki values of 3.53-5.67 μM toward phosphoenolpyruvate. Scutellarin and tangeritin demonstrated strong activation effect with AC50 values < 2 μM. Diosmetin, baicalin, baicalein, and luteolin showed an intermediate-level activator effect. These results demonstrate that flavone and their analogs could serve as leading compounds to develop new potent and selective inhibitor and activator for PKM2.
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Affiliation(s)
- Erdem Aslan
- Chemistry Department, Faculty of Science, Cankiri Karatekin University, Cankiri, Turkey.
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330
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Design, synthesis, and antiviral activity of novel rutin derivatives containing 1, 4-pentadien-3-one moiety. Eur J Med Chem 2015; 92:732-7. [PMID: 25618020 DOI: 10.1016/j.ejmech.2015.01.017] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Revised: 01/08/2015] [Accepted: 01/09/2015] [Indexed: 12/23/2022]
Abstract
Rutin (compound 5) and some compounds (compounds 1-4 and 6) were isolated from Artemisia princeps Pamp (A. princeps Pamp.) and a series of novel rutin derivatives containing 1,4-pentadien-3-one moiety were designed and synthesized. The target compounds were characterized by proton nuclear magnetic resonance spectroscopy ((1)H NMR), carbon nuclear magnetic resonance spectroscopy ((13)C NMR), and ESI-MS. Bioassay results indicated that some of the compounds showed good to excellent antiviral activities against tobacco mosaic virus (TMV) and cucumber mosaic virus (CMV) at 500 μg/mL in vivo. The 50% effective concentrations (EC50) of the compound 7r against CMV was 394.78 μg/mL, which was better than that of Ningnanmycin (432.22 μg/mL). These results indicated that novel rutin derivatives containing 1,4-pentadien-3-one moiety can effectively control CMV.
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331
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Mai LH, Chabot GG, Grellier P, Quentin L, Dumontet V, Poulain C, Espindola LS, Michel S, Vo HTB, Deguin B, Grougnet R. Antivascular and anti-parasite activities of natural and hemisynthetic flavonoids from New Caledonian Gardenia species (Rubiaceae). Eur J Med Chem 2015; 93:93-100. [PMID: 25659770 DOI: 10.1016/j.ejmech.2015.01.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 01/06/2015] [Accepted: 01/07/2015] [Indexed: 10/25/2022]
Abstract
A series of 16 flavonoids were isolated and prepared from bud exudate of Gardenia urvillei and Gardenia oudiepe, endemic to New Caledonia. Most of them are rare polymethoxylated flavones. Some of these compounds showed noticeable activity against Leishmania (Leishmania) amazonensis, Plasmodium falciparum and Trypanosoma brucei gambiense, in addition to tubulin polymerization inhibition at low micromolar concentration. We also provide a full set of NMR data as some of the flavones were incompletely described.
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Affiliation(s)
- Linh H Mai
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Guy G Chabot
- Laboratoire de Pharmacologie Chimique, Génétique et Imagerie U1022 Inserm-UMR8151 CNRS, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Philippe Grellier
- Muséum National d'Histoire Naturelle, UMR 7245 CNRS, Molécules de Communication et Adaptation des Micro-organismes, 61 rue Buffon, F-75231 Paris Cedex 05, France
| | - Lionel Quentin
- Laboratoire de Pharmacologie Chimique, Génétique et Imagerie U1022 Inserm-UMR8151 CNRS, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Vincent Dumontet
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, UPR2301 CNRS, Avenue de la Terrasse, Gif-sur-Yvette Cedex, France
| | - Cyril Poulain
- Centre de recherche de Gif, Institut de Chimie des Substances Naturelles, UPR2301 CNRS, Avenue de la Terrasse, Gif-sur-Yvette Cedex, France
| | - Laila S Espindola
- Laboratorio de Farmacognosia, Universidade de Brasilia, Campus Universitario Darcy Ribeiro, Asa Norte, 70910-900 Brasilia, DF, Brazil
| | - Sylvie Michel
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Hue T B Vo
- Faculty of Pharmacy, Ho Chi Minh University of Medicine and Pharmacy, 41 Dinh Tien Hoang St., District 1, Ho Chi Minh City, Viet Nam
| | - Brigitte Deguin
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France
| | - Raphaël Grougnet
- Laboratoire de Pharmacognosie, UMR/CNRS 8638, Faculté des Sciences Pharmaceutiques et Biologiques, Université Paris Descartes, Sorbonne Paris Cité, 4, Avenue de l'Observatoire, 75006 Paris, France.
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332
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A. Ibrahim M, M. El-Gohary N, Said S. Ring Opening Ring Closure Reactions with 3-Substituted Chromones under Nucleophilic Conditions. HETEROCYCLES 2015. [DOI: 10.3987/rev-15-824] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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333
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Nagle A, Khare S, Kumar AB, Supek F, Buchynskyy A, Mathison CJN, Chennamaneni N, Pendem N, Buckner FS, Gelb M, Molteni V. Recent developments in drug discovery for leishmaniasis and human African trypanosomiasis. Chem Rev 2014; 114:11305-47. [PMID: 25365529 PMCID: PMC4633805 DOI: 10.1021/cr500365f] [Citation(s) in RCA: 240] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Indexed: 02/08/2023]
Affiliation(s)
- Advait
S. Nagle
- Genomics
Institute of the Novartis Research Foundation, 10675 John Jay Hopkins Drive, San Diego, California 92121, United States
| | - Shilpi Khare
- Genomics
Institute of the Novartis Research Foundation, 10675 John Jay Hopkins Drive, San Diego, California 92121, United States
| | - Arun Babu Kumar
- Departments of Chemistry, Biochemistry, and Medicine, University
of Washington, Seattle, Washington 98195, United States
| | - Frantisek Supek
- Genomics
Institute of the Novartis Research Foundation, 10675 John Jay Hopkins Drive, San Diego, California 92121, United States
| | - Andriy Buchynskyy
- Departments of Chemistry, Biochemistry, and Medicine, University
of Washington, Seattle, Washington 98195, United States
| | - Casey J. N. Mathison
- Genomics
Institute of the Novartis Research Foundation, 10675 John Jay Hopkins Drive, San Diego, California 92121, United States
| | - Naveen
Kumar Chennamaneni
- Departments of Chemistry, Biochemistry, and Medicine, University
of Washington, Seattle, Washington 98195, United States
| | - Nagendar Pendem
- Departments of Chemistry, Biochemistry, and Medicine, University
of Washington, Seattle, Washington 98195, United States
| | - Frederick S. Buckner
- Departments of Chemistry, Biochemistry, and Medicine, University
of Washington, Seattle, Washington 98195, United States
| | - Michael
H. Gelb
- Departments of Chemistry, Biochemistry, and Medicine, University
of Washington, Seattle, Washington 98195, United States
| | - Valentina Molteni
- Genomics
Institute of the Novartis Research Foundation, 10675 John Jay Hopkins Drive, San Diego, California 92121, United States
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Yoo JS, Lim Y, Koh D. Crystal structure of 2-(3,4-di-meth-oxy-phen-yl)-3-hy-droxy-4H-chromen-4-one. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o999-o1000. [PMID: 25309302 PMCID: PMC4186158 DOI: 10.1107/s1600536814018212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2014] [Accepted: 08/08/2014] [Indexed: 11/15/2022]
Abstract
In the title compound, C17H14O5, the dimethoxy-substituted benzene ring is twisted relative to the 4H-chromenon skeleton (r.m.s. deviation = 0.015 Å) by 5.2 (4)°. The C atoms of the methoxy groups lie close to the plane of their attached benzene ring [deviations = 0.036 (3) and 0.290 (3)Å for the meta and para substituents, respectively]. An intramolecular O—H⋯O hydrogen bond closes an S(5) ring. In the cystal, inversion dimers linked by pairs of O—H⋯O hydrogen bonds generate R22(10) loops and C—H⋯O interactions connect the dimers into [010] chains.
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Affiliation(s)
- Jin Sil Yoo
- Department of Applied Chemistry, Dongduk Women's University, Seoul 136-714, Republic of Korea
| | - Yoongho Lim
- Division of Bioscience and Biotechnology, BMIC, Konkuk University, Seoul 143-701, Republic of Korea
| | - Dongsoo Koh
- Department of Applied Chemistry, Dongduk Women's University, Seoul 136-714, Republic of Korea
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