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Sun Y, Wang Z, Hua W, Cui L, Kong L, Luo J. d -chiro-Inositol Derivatives with Multidrug Resistance Reversal Activities from the Fruits of Chisocheton siamensis. J Nat Prod 2023; 86:860-868. [PMID: 37020426 DOI: 10.1021/acs.jnatprod.2c01033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
Chisosiamols A-K (1-11), 11 new d-chiro-inositol derivatives, along with a known analogue (12) were isolated from the fruits of Chisocheton siamensis. Their planar structures and relative configurations were elucidated by the comprehensive application of spectroscopic methods, especially from the characteristic coupling constants, and 1H-1H COSY spectra. The absolute configurations of the d-chiro-inositol core were determined using the ECD exciton chirality and X-ray diffraction crystallographic analytical methods. This is the first crystallographic data reported for the d-chiro-inositol derivatives. A structural elucidation strategy mainly combining 1H-1H COSY correlations and ECD exciton chirality for determining the structure of d-chiro-inositol derivatives was developed, which also led to the revisions of previously reported structures. Bioactivity evaluation indicated that chisosiamols A, B, and J can reverse multidrug resistance in MCF-7/DOX cells in the IC50 range of 3.4-6.5 μM (RF: 3.6-7.0).
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Affiliation(s)
- Yujin Sun
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Zefan Wang
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Wang Hua
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Letian Cui
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Lingyi Kong
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
| | - Jun Luo
- Jiangsu Key Laboratory of Bioactive Natural Product Research, State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, Nanjing 210009, People's Republic of China
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Hodges H, Obeng K, Avanzi C, Ausmus AP, Angala SK, Kalera K, Palcekova Z, Swarts BM, Jackson M. Azido Inositol Probes Enable Metabolic Labeling of Inositol-Containing Glycans and Reveal an Inositol Importer in Mycobacteria. ACS Chem Biol 2023; 18:595-604. [PMID: 36856664 PMCID: PMC10071489 DOI: 10.1021/acschembio.2c00912] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Bacteria from the genus Mycobacterium include pathogens that cause serious diseases in humans and remain as difficult infectious agents to treat. Central to these challenges are the composition and organization of the mycobacterial cell envelope, which includes unique and complex glycans. Inositol is an essential metabolite for mycobacteria due to its presence in the structural core of the immunomodulatory cell envelope glycolipids phosphatidylinositol mannoside (PIM) and PIM-anchored lipomannan (LM) and lipoarabinomannan (LAM). Despite their importance to mycobacterial physiology and pathogenesis, many aspects of PIM, LM, and LAM construction and dynamics remain poorly understood. Recently, probes that allow metabolic labeling and detection of specific mycobacterial glycans have been developed to investigate cell envelope assembly and dynamics. However, these tools have been limited to peptidoglycan, arabinogalactan, and mycolic acid-containing glycolipids. Herein, we report the development of synthetic azido inositol (InoAz) analogues as probes that can metabolically label PIMs, LM, and LAM in intact mycobacteria. Additionally, we leverage an InoAz probe to discover an inositol importer and catabolic pathway in Mycobacterium smegmatis. We anticipate that in the future, InoAz probes, in combination with bioorthogonal chemistry, will provide a valuable tool for investigating PIM, LM, and LAM biosynthesis, transport, and dynamics in diverse mycobacterial organisms.
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Affiliation(s)
- Heather Hodges
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, 80523 USA
| | - Kwaku Obeng
- Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI, 48859 USA
| | - Charlotte Avanzi
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, 80523 USA
| | - Alex P. Ausmus
- Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI, 48859 USA
| | - Shiva Kumar Angala
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, 80523 USA
| | - Karishma Kalera
- Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI, 48859 USA
- Biochemistry, Cellular, and Molecular Biology Program, Central Michigan University, Mount Pleasant, MI, 48859 USA
| | - Zuzana Palcekova
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, 80523 USA
| | - Benjamin M. Swarts
- Department of Chemistry and Biochemistry, Central Michigan University, Mount Pleasant, MI, 48859 USA
- Biochemistry, Cellular, and Molecular Biology Program, Central Michigan University, Mount Pleasant, MI, 48859 USA
| | - Mary Jackson
- Mycobacteria Research Laboratories, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO, 80523 USA
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Matsunaga C, Kanazawa N, Takatsuka Y, Fujii T, Ohta S, Ômura H. Polyhydroxy Acids as Fabaceous Plant Components Induce Oviposition of the Common Grass Yellow Butterfly, Eurema Mandarina. J Chem Ecol 2023; 49:67-76. [PMID: 36484901 DOI: 10.1007/s10886-022-01397-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 12/02/2022] [Accepted: 12/04/2022] [Indexed: 12/14/2022]
Abstract
The common grass yellow butterfly, Eurema mandarina is a Fabaceae-feeding species, the females of which readily oviposit on Albizia julibrissin and Lespedeza cuneata in mainland Japan. We previously demonstrated that the methanolic leaf extracts of these plants, and their highly polar aqueous fractions strongly elicit female oviposition. Furthermore, the three subfractions obtained by ion-exchange chromatographic separation of the aqueous fraction have been found to be less effective alone, but synergistically stimulate female oviposition when combined. This indicates that female butterflies respond to multiple compounds with different acidity. We have previously identified d-pinitol from the neutral/amphoteric subfractions and glycine betaine from the basic subfractions as oviposition stimulants of E. mandarina. The present study aimed to identify active compounds in the remaining acidic subfractions of A. julibrissin and L. cuneata leaf extracts. GC-MS analyses of trimethylsilyl-derivatized samples revealed the presence of six compounds in the acidic subfractions. In bioassays using these authentic chemicals, erythronic acid (EA) and threonic acid (TA) were moderately active in eliciting oviposition responses in E. mandarina, with their d-isomers showing slightly higher activity than their l-isomers. Female responsiveness differed between d-EA and l-TA, the major isomers of these compounds in plants, with the response to d-EA reaching a plateau at concentrations above 0.005% and that to l-TA peaking at a concentration of 0.01%. The natural concentrations of d-EA and l-TA in fresh A. julibrissin and L. cuneata leaves were sufficient to stimulate oviposition. Furthermore, mixing 0.001% d-EA or 0.001% l-TA, to which females are mostly unresponsive, with 0.1% d-pinitol resulted in a synergistic enhancement of the oviposition response. These findings demonstrate that E. mandarina females utilize both polyhydroxy acids, EA and TA, as chemical cues for oviposition.
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Affiliation(s)
- Chisato Matsunaga
- Graduate School of Integrated Sciences for Life, Hiroshima University, 739- 8528, Higashihiroshima, Japan
| | - Naoki Kanazawa
- Graduate School of Integrated Sciences for Life, Hiroshima University, 739- 8528, Higashihiroshima, Japan
| | - Yuta Takatsuka
- Graduate School of Integrated Sciences for Life, Hiroshima University, 739- 8528, Higashihiroshima, Japan
| | - Takeshi Fujii
- Faculty of Agriculture, Setsunan University, 573-0101, Hirakata, Osaka, Japan
| | - Shinji Ohta
- Graduate School of Integrated Sciences for Life, Hiroshima University, 739- 8528, Higashihiroshima, Japan
| | - Hisashi Ômura
- Graduate School of Integrated Sciences for Life, Hiroshima University, 739- 8528, Higashihiroshima, Japan.
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Liu Y, Meng X, Wang H, Sun Y, Wang SY, Jiang YK, Algradi AM, Naseem A, Kuang HX, Yang BY. Inositol Derivatives with Anti-Inflammatory Activity from Leaves of Solanum capsicoides Allioni. Molecules 2022; 27:molecules27186063. [PMID: 36144793 PMCID: PMC9503535 DOI: 10.3390/molecules27186063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/10/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022] Open
Abstract
Eight new inositol derivatives, solsurinositols A-H (1-8), were isolated from the 70% EtOH extract of the leaves of Solanum capsicoides Allioni. Careful isolation by silica gel column chromatography followed by preparative high-performance liquid chromatography (HPLC) allowed us to obtain analytically pure compounds 1-8. They shared the same relative stereochemistry on the ring but have different acyl groups attached to various hydroxyl groups. This was the first time that inositol derivatives have been isolated from this plant. The chemical structures of compounds 1-8 were characterized by extensive 1D nuclear magnetic resonance (NMR) and 2D NMR and mass analyses. Meanwhile, the in vitro anti-inflammatory activity of all compounds was determined using lipopolysaccharide (LPS)-induced BV2 microglia, and among the isolates, compounds 5 (IC50 = 11.21 ± 0.14 µM) and 7 (IC50 = 14.5 ± 1.22 µM) were shown to have potential anti-inflammatory activity.
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Weber M, Fuchs TM. Metabolism in the Niche: a Large-Scale Genome-Based Survey Reveals Inositol Utilization To Be Widespread among Soil, Commensal, and Pathogenic Bacteria. Microbiol Spectr 2022; 10:e0201322. [PMID: 35924911 PMCID: PMC9430895 DOI: 10.1128/spectrum.02013-22] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/22/2022] [Indexed: 11/20/2022] Open
Abstract
Phytate is the main phosphorus storage molecule of plants and is therefore present in large amounts in the environment and in the diet of humans and animals. Its dephosphorylated form, the polyol myo-inositol (MI), can be used by bacteria as a sole carbon and energy source. The biochemistry and regulation of MI degradation were deciphered in Bacillus subtilis and Salmonella enterica, but a systematic survey of this catabolic pathway has been missing until now. For a comprehensive overview of the distribution of MI utilization, we analyzed 193,757 bacterial genomes, representing a total of 24,812 species, for the presence, organization, and taxonomic prevalence of inositol catabolic gene clusters (IolCatGCs). The genetic capacity for MI degradation was detected in 7,384 (29.8%) of all species for which genome sequences were available. IolCatGC-positive species were particularly found among Actinobacteria and Proteobacteria and to a much lesser extent in Bacteroidetes. IolCatGCs are very diverse in terms of gene number and functions, whereas the order of core genes is highly conserved on the phylum level. We predict that 111 animal pathogens, more than 200 commensals, and 430 plant pathogens or rhizosphere bacteria utilize MI, underscoring that IolCatGCs provide a growth benefit within distinct ecological niches. IMPORTANCE This study reveals that the capacity to utilize inositol is unexpectedly widespread among soil, commensal, and pathogenic bacteria. We assume that this yet-neglected metabolism plays a pivotal role in the microbial turnover of phytate and inositols. The bioinformatic tool established here enables predicting to which extent and genetic variance a bacterial determinant is present in all genomes sequenced so far.
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Affiliation(s)
- Michael Weber
- Friedrich-Loeffler-Institut/Federal Research Institute for Animal Health, Institute of Molecular Pathogenesis, Jena, Germany
| | - Thilo M. Fuchs
- Friedrich-Loeffler-Institut/Federal Research Institute for Animal Health, Institute of Molecular Pathogenesis, Jena, Germany
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Siracusa L, Napoli E, Ruberto G. Novel Chemical and Biological Insights of Inositol Derivatives in Mediterranean Plants. Molecules 2022; 27:molecules27051525. [PMID: 35268625 PMCID: PMC8912080 DOI: 10.3390/molecules27051525] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 02/17/2022] [Accepted: 02/22/2022] [Indexed: 12/12/2022] Open
Abstract
Inositols (Ins) are natural compounds largely widespread in plants and animals. Bio-sinthetically they derive from sugars, possessing a molecular structure very similar to the simple sugars, and this aspect concurs to define them as primary metabolites, even though it is much more correct to place them at the boundary between primary and secondary metabolites. This dichotomy is well represented by the fact that as primary metabolites they are essential cellular components in the form of phospholipid derivatives, while as secondary metabolites they are involved in a plethora of signaling pathways playing an important role in the surviving of living organisms. myo-Inositol is the most important and widespread compound of this family, it derives directly from d-glucose, and all known inositols, including stereoisomers and derivatives, are the results of metabolic processes on this unique molecule. In this review, we report the new insights of these compounds and their derivatives concerning their occurrence in Nature with a particular emphasis on the plant of the Mediterranean area, as well as the new developments about their biological effectiveness.
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Dinicola S, Unfer V, Facchinetti F, Soulage CO, Greene ND, Bizzarri M, Laganà AS, Chan SY, Bevilacqua A, Pkhaladze L, Benvenga S, Stringaro A, Barbaro D, Appetecchia M, Aragona C, Bezerra Espinola MS, Cantelmi T, Cavalli P, Chiu TT, Copp AJ, D’Anna R, Dewailly D, Di Lorenzo C, Diamanti-Kandarakis E, Hernández Marín I, Hod M, Kamenov Z, Kandaraki E, Monastra G, Montanino Oliva M, Nestler JE, Nordio M, Ozay AC, Papalou O, Porcaro G, Prapas N, Roseff S, Vazquez-Levin M, Vucenik I, Wdowiak A. Inositols: From Established Knowledge to Novel Approaches. Int J Mol Sci 2021; 22:10575. [PMID: 34638926 PMCID: PMC8508595 DOI: 10.3390/ijms221910575] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/13/2021] [Accepted: 09/22/2021] [Indexed: 12/24/2022] Open
Abstract
Myo-inositol (myo-Ins) and D-chiro-inositol (D-chiro-Ins) are natural compounds involved in many biological pathways. Since the discovery of their involvement in endocrine signal transduction, myo-Ins and D-chiro-Ins supplementation has contributed to clinical approaches in ameliorating many gynecological and endocrinological diseases. Currently both myo-Ins and D-chiro-Ins are well-tolerated, effective alternative candidates to the classical insulin sensitizers, and are useful treatments in preventing and treating metabolic and reproductive disorders such as polycystic ovary syndrome (PCOS), gestational diabetes mellitus (GDM), and male fertility disturbances, like sperm abnormalities. Moreover, besides metabolic activity, myo-Ins and D-chiro-Ins deeply influence steroidogenesis, regulating the pools of androgens and estrogens, likely in opposite ways. Given the complexity of inositol-related mechanisms of action, many of their beneficial effects are still under scrutiny. Therefore, continuing research aims to discover new emerging roles and mechanisms that can allow clinicians to tailor inositol therapy and to use it in other medical areas, hitherto unexplored. The present paper outlines the established evidence on inositols and updates on recent research, namely concerning D-chiro-Ins involvement into steroidogenesis. In particular, D-chiro-Ins mediates insulin-induced testosterone biosynthesis from ovarian thecal cells and directly affects synthesis of estrogens by modulating the expression of the aromatase enzyme. Ovaries, as well as other organs and tissues, are characterized by a specific ratio of myo-Ins to D-chiro-Ins, which ensures their healthy state and proper functionality. Altered inositol ratios may account for pathological conditions, causing an imbalance in sex hormones. Such situations usually occur in association with medical conditions, such as PCOS, or as a consequence of some pharmacological treatments. Based on the physiological role of inositols and the pathological implications of altered myo-Ins to D-chiro-Ins ratios, inositol therapy may be designed with two different aims: (1) restoring the inositol physiological ratio; (2) altering the ratio in a controlled way to achieve specific effects.
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Affiliation(s)
- Simona Dinicola
- Systems Biology Group Lab, 00161 Rome, Italy; (S.D.); (V.U.); (M.B.); (C.A.); (M.S.B.E.); (G.M.)
| | - Vittorio Unfer
- Systems Biology Group Lab, 00161 Rome, Italy; (S.D.); (V.U.); (M.B.); (C.A.); (M.S.B.E.); (G.M.)
| | - Fabio Facchinetti
- Obstetrics and Gynecology Unit, Mother-Infant and Adult Department of Medical and Surgical Sciences, University of Modena and Reggio Emilia, 41121 Modena, Italy
| | - Christophe O. Soulage
- CarMeN Lab, INSA-Lyon, INSERM U1060, INRA, University Claude Bernard Lyon 1, 69100 Villeurbanne, France;
| | - Nicholas D. Greene
- Newlife Birth Defects Research Centre and Developmental Biology and Cancer Programme, Institute of Child Health, University College London, London WC1E 6BT, UK; (N.D.G.); (A.J.C.)
| | - Mariano Bizzarri
- Systems Biology Group Lab, 00161 Rome, Italy; (S.D.); (V.U.); (M.B.); (C.A.); (M.S.B.E.); (G.M.)
- Department of Experimental Medicine, University La Sapienza, 00161 Rome, Italy
| | - Antonio Simone Laganà
- Department of Obstetrics and Gynecology, Hospital “Filippo Del Ponte”, University of Insubria, 21100 Varese, Italy;
| | - Shiao-Yng Chan
- Department of Obstetrics and Gynecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
| | - Arturo Bevilacqua
- Department of Dynamic, Clinical Psychology and Health Studies, Sapienza University, 00161 Rome, Italy;
| | - Lali Pkhaladze
- Zhordania and Khomasuridze Institute of Reproductology, Tbilisi 0112, Georgia;
| | - Salvatore Benvenga
- Department of Clinical and Experimental Medicine, University of Messina, 98122 Messina, Italy;
| | - Annarita Stringaro
- National Center for Drug Research and Evaluation, Italian National Institute of Health, 00161 Rome, Italy;
| | - Daniele Barbaro
- U.O. Endocrinology in Livorno Hospital, USL Nordovest Toscana, 57100 Livorno, Italy;
| | - Marialuisa Appetecchia
- Oncological Endocrinology Unit, Regina Elena National Cancer Institute, IRCCS, 00161 Rome, Italy;
| | - Cesare Aragona
- Systems Biology Group Lab, 00161 Rome, Italy; (S.D.); (V.U.); (M.B.); (C.A.); (M.S.B.E.); (G.M.)
| | | | - Tonino Cantelmi
- Institute for Interpersonal Cognitive Therapy, 00100 Rome, Italy;
| | - Pietro Cavalli
- Humanitas Research Hospital, Rozzano, 20089 Milan, Italy;
| | | | - Andrew J. Copp
- Newlife Birth Defects Research Centre and Developmental Biology and Cancer Programme, Institute of Child Health, University College London, London WC1E 6BT, UK; (N.D.G.); (A.J.C.)
| | - Rosario D’Anna
- Department of Human Pathology, University of Messina, 98122 Messina, Italy;
| | - Didier Dewailly
- Faculty of Medicine, University of Lille, 59000 Lille, France;
| | - Cherubino Di Lorenzo
- Department of Medico-Surgical Sciences and Biotechnologies, Sapienza University of Rome Polo Pontino, 04100 Latina, Italy;
| | - Evanthia Diamanti-Kandarakis
- Department of Endocrinology and Diabetes, HYGEIA Hospital, Marousi, 15123 Athens, Greece; (E.D.-K.); (E.K.); (O.P.)
| | - Imelda Hernández Marín
- Human Reproduction Department, Hospital Juárez de México, Universidad Nacional Autónoma de México (UNAM), Mexico City 07760, Mexico;
| | - Moshe Hod
- Department of Obstetrics and Gynecology Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv 6997801, Israel;
| | - Zdravko Kamenov
- Department of Internal Medicine, Medical University of Sofia, 1431 Sofia, Bulgaria;
| | - Eleni Kandaraki
- Department of Endocrinology and Diabetes, HYGEIA Hospital, Marousi, 15123 Athens, Greece; (E.D.-K.); (E.K.); (O.P.)
| | - Giovanni Monastra
- Systems Biology Group Lab, 00161 Rome, Italy; (S.D.); (V.U.); (M.B.); (C.A.); (M.S.B.E.); (G.M.)
| | | | - John E. Nestler
- Division of Endocrinology, Diabetes and Metabolism, Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA 23284, USA;
| | | | - Ali C. Ozay
- Department of Obstetrics and Gynecology, Near East University Hospital, Nicosia 99138, Cyprus;
| | - Olga Papalou
- Department of Endocrinology and Diabetes, HYGEIA Hospital, Marousi, 15123 Athens, Greece; (E.D.-K.); (E.K.); (O.P.)
| | | | - Nikos Prapas
- IAKENTRO, Infertility Treatment Center, 54250 Thessaloniki, Greece;
| | - Scott Roseff
- Reproductive Endocrinology and Infertility, South Florida Institute for Reproductive Medicine (IVFMD), Boca Raton, FL 33458, USA;
| | - Monica Vazquez-Levin
- Instituto de Biología y Medicina Experimental (IBYME, CONICET-FIBYME), Consejo Nacional de Investigaciones Científicas y Técnicas de Argentina (CONICET), Buenos Aires 2490, Argentina;
| | - Ivana Vucenik
- Department of Medical & Research Technology and Pathology, School of Medicine, University of Maryland, Baltimore, MD 21201, USA;
| | - Artur Wdowiak
- Diagnostic Techniques Unit, Medical University of Lublin, 20-081 Lublin, Poland;
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Antonowski T, Wiśniewski K, Podlasz P, Osowski A, Wojtkiewicz J. Study of the Potential Hepatoprotective Effect of Myo-Inositol and Its Influence on Zebrafish Development. Nutrients 2021; 13:nu13103346. [PMID: 34684347 PMCID: PMC8540950 DOI: 10.3390/nu13103346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/19/2021] [Accepted: 09/20/2021] [Indexed: 11/26/2022] Open
Abstract
Inositol is a natural substance found widely in plants. It is used in therapies for many medical cases. The aim of this study was to determine the toxicity of myo-inositol (MI) and to investigate its potential hepatoprotective character. In the first part of the study, zebrafish embryos were incubated with 5, 10, 20, 40, 60, 80, and 100 mg/mL MI. Endpoints such as survivability, hatching rate, malformation, and mobility were evaluated. Our results demonstrated that the high doses of MI lead to increased mortality and malformations and reduce the hatching rate in comparison to the control group. Moreover, low doses of this compound do not produce a negative effect on zebrafish and even have the ability to increase the hatching rate and mobility. In the second part of the study, the hepatoprotective effect of MI was tested. Zebrafish larvae from the line Tg (fabp10a:DsRed) were incubated for 24 h with 1% and 2% ethanol (EtOH), 5 mg/mL of MI with 1% EtOH, and 5 mg/mL of MI with 2% EtOH. No significant differences between the groups with EtOH and the group treated with EtOH with MI were observed. Our results suggest that MI has no positive benefits on hepatocytes of zebrafish larvae.
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Affiliation(s)
- Tomasz Antonowski
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (A.O.); (J.W.)
- Correspondence: ; Tel.: +48-89-524-61-33
| | - Karol Wiśniewski
- Students’ Scientific Club of Pathophysiologists, Department of Human Physiology and Pathophysiology, School of Medicine, University of Warmia and Mazury, 10-082 Olsztyn, Poland;
| | - Piotr Podlasz
- Department of Pathophysiology, Forensic Veterinary Medicine and Administration, Faculty of Veterinary Medicine, University of Warmia and Mazury, 10-719 Olsztyn, Poland;
| | - Adam Osowski
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (A.O.); (J.W.)
| | - Joanna Wojtkiewicz
- Department of Human Physiology and Pathophysiology, School of Medicine, Collegium Medicum, University of Warmia and Mazury, 10-082 Olsztyn, Poland; (A.O.); (J.W.)
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9
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Medina-Vera D, Navarro JA, Tovar R, Rosell-Valle C, Gutiérrez-Adan A, Ledesma JC, Sanjuan C, Pavón FJ, Baixeras E, Rodríguez de Fonseca F, Decara J. Activation of PI3K/Akt Signaling Pathway in Rat Hypothalamus Induced by an Acute Oral Administration of D-Pinitol. Nutrients 2021; 13:2268. [PMID: 34209137 PMCID: PMC8308282 DOI: 10.3390/nu13072268] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/23/2021] [Accepted: 06/25/2021] [Indexed: 12/12/2022] Open
Abstract
D-Pinitol (DPIN) is a natural occurring inositol capable of activating the insulin pathway in peripheral tissues, whereas this has not been thoroughly studied in the central nervous system. The present study assessed the potential regulatory effects of DPIN on the hypothalamic insulin signaling pathway. To this end we investigated the Phosphatidylinositol-3-kinase (PI3K)/Protein Kinase B (Akt) signaling cascade in a rat model following oral administration of DPIN. The PI3K/Akt-associated proteins were quantified by Western blot in terms of phosphorylation and total expression. Results indicate that the acute administration of DPIN induced time-dependent phosphorylation of PI3K/Akt and its related substrates within the hypothalamus, indicating an activation of the insulin signaling pathway. This profile is consistent with DPIN as an insulin sensitizer since we also found a decrease in the circulating concentration of this hormone. Overall, the present study shows the pharmacological action of DPIN in the hypothalamus through the PI3K/Akt pathway when giving in fasted animals. These findings suggest that DPIN might be a candidate to treat brain insulin-resistance associated disorders by activating insulin response beyond the insulin receptor.
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Affiliation(s)
- Dina Medina-Vera
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
- Facultad de Ciencias, Universidad de Málaga, 29010 Málaga, Spain
- Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), UGC del Corazón, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Virgen de la Victoria, Universidad de Málaga, 29010 Málaga, Spain
| | - Juan Antonio Navarro
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
- Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
| | - Rubén Tovar
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
- Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain
| | - Cristina Rosell-Valle
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
| | - Alfonso Gutiérrez-Adan
- Departamento de Reproducción Animal, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28040 Madrid, Spain;
| | - Juan Carlos Ledesma
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
| | - Carlos Sanjuan
- Euronutra S.L. Calle Johannes Kepler, 3, 29590 Málaga, Spain;
| | - Francisco Javier Pavón
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), UGC del Corazón, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Virgen de la Victoria, Universidad de Málaga, 29010 Málaga, Spain
| | - Elena Baixeras
- Departamento de Bioquímica y Biología Molecular, Facultad de Medicina, Universidad de Málaga, 29010 Málaga, Spain;
| | - Fernando Rodríguez de Fonseca
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
| | - Juan Decara
- Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, UGC Salud Mental, Avda. Carlos Haya 82, Pabellón de Gobierno, 29010 Málaga, Spain; (D.M.-V.); (J.A.N.); (R.T.); (C.R.-V.); (J.C.L.); (F.J.P.)
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10
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Mohanrao R, Manorama R, Ganguli S, Madhusudhanan MC, Bhandari R, Sureshan KM. Novel Substrates for Kinases Involved in the Biosynthesis of Inositol Pyrophosphates and Their Enhancement of ATPase Activity of a Kinase. Molecules 2021; 26:molecules26123601. [PMID: 34208421 PMCID: PMC8231259 DOI: 10.3390/molecules26123601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2021] [Revised: 06/07/2021] [Accepted: 06/07/2021] [Indexed: 11/16/2022] Open
Abstract
IP6K and PPIP5K are two kinases involved in the synthesis of inositol pyrophosphates. Synthetic analogs or mimics are necessary to understand the substrate specificity of these enzymes and to find molecules that can alter inositol pyrophosphate synthesis. In this context, we synthesized four scyllo-inositol polyphosphates-scyllo-IP5, scyllo-IP6, scyllo-IP7 and Bz-scyllo-IP5-from myo-inositol and studied their activity as substrates for mouse IP6K1 and the catalytic domain of VIP1, the budding yeast variant of PPIP5K. We incubated these scyllo-inositol polyphosphates with these kinases and ATP as the phosphate donor. We tracked enzyme activity by measuring the amount of radiolabeled scyllo-inositol pyrophosphate product formed and the amount of ATP consumed. All scyllo-inositol polyphosphates are substrates for both the kinases but they are weaker than the corresponding myo-inositol phosphate. Our study reveals the importance of axial-hydroxyl/phosphate for IP6K1 substrate recognition. We found that all these derivatives enhance the ATPase activity of VIP1. We found very weak ligand-induced ATPase activity for IP6K1. Benzoyl-scyllo-IP5 was the most potent ligand to induce IP6K1 ATPase activity despite being a weak substrate. This compound could have potential as a competitive inhibitor.
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Affiliation(s)
- Raja Mohanrao
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala 695551, India; (R.M.); (M.C.M.)
| | - Ruth Manorama
- Laboratory of Cell Signalling, Centre for DNA Fingerprinting and Diagnostics, Hyderabad 500039, India; (R.M.); (S.G.)
| | - Shubhra Ganguli
- Laboratory of Cell Signalling, Centre for DNA Fingerprinting and Diagnostics, Hyderabad 500039, India; (R.M.); (S.G.)
- Manipal Academy of Higher Education, Manipal 576104, India
| | - Mithun C. Madhusudhanan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala 695551, India; (R.M.); (M.C.M.)
| | - Rashna Bhandari
- Laboratory of Cell Signalling, Centre for DNA Fingerprinting and Diagnostics, Hyderabad 500039, India; (R.M.); (S.G.)
- Correspondence: (R.B.); (K.M.S.)
| | - Kana M. Sureshan
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Kerala 695551, India; (R.M.); (M.C.M.)
- Correspondence: (R.B.); (K.M.S.)
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11
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Monastra G, Vucenik I, Harrath AH, Alwasel SH, Kamenov ZA, Laganà AS, Monti N, Fedeli V, Bizzarri M. PCOS and Inositols: Controversial Results and Necessary Clarifications. Basic Differences Between D-Chiro and Myo-Inositol. Front Endocrinol (Lausanne) 2021; 12:660381. [PMID: 33889133 PMCID: PMC8056130 DOI: 10.3389/fendo.2021.660381] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/04/2021] [Indexed: 12/18/2022] Open
Affiliation(s)
- Giovanni Monastra
- Systems Biology Group Lab (SBGLab), Sapienza University, Rome, Italy
| | - Ivana Vucenik
- Department of Medical and Research Technology, University of Maryland School of Medicine, Baltimore, MD, United States
| | - Abdel Halim Harrath
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Saleh H. Alwasel
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Zdravko A. Kamenov
- Department of Internal Medicine, Medical University of Sofia, Sofia, Bulgaria
| | - Antonio Simone Laganà
- Department of Obstetrics and Gynecology, “Filippo Del Ponte” Hospital, University of Insubria, Varese, Italy
| | - Noemi Monti
- Department of Experimental Medicine, Systems Biology Group Lab, University Sapienza, Rome, Italy
| | - Valeria Fedeli
- Department of Experimental Medicine, Systems Biology Group Lab, University Sapienza, Rome, Italy
| | - Mariano Bizzarri
- Department of Experimental Medicine, Systems Biology Group Lab, University Sapienza, Rome, Italy
- *Correspondence: Mariano Bizzarri,
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12
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Chicanne G, Bertrand-Michel J, Viaud J, Hnia K, Clark J, Payrastre B. Profiling of Phosphoinositide Molecular Species in Resting or Activated Human or Mouse Platelets by a LC-MS Method. Methods Mol Biol 2021; 2251:39-53. [PMID: 33481230 DOI: 10.1007/978-1-0716-1142-5_3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Our knowledge of the role and biology of the different phosphoinositides has greatly expanded over recent years. Reversible phosphorylation by specific kinases and phosphatases of positions 3, 4, and 5 on the inositol ring is a highly dynamic process playing a critical role in the regulation of the spatiotemporal recruitment and binding of effector proteins. The specific phosphoinositide kinases and phosphatases are key players in the control of many cellular functions, including proliferation, survival, intracellular trafficking, or cytoskeleton reorganization. Several of these enzymes are mutated in human diseases. The impact of the fatty acid composition of phosphoinositides in their function is much less understood. There is an important molecular diversity in the fatty acid side chains of PI. While stearic and arachidonic fatty acids are the major acyl species in PIP, PIP2, and PIP3, other fatty acid combinations are also found. The role of these different molecular species is still unknown, but it is important to quantify these different molecules and their potential changes during cell stimulation to better characterize this emerging field. Here, we describe a sensitive high-performance liquid chromatography-mass spectrometry method that we used for the first time to profile the changes in phosphoinositide molecular species (summed fatty acyl chain profiles) in human and mouse platelets under resting conditions and following stimulation. This method can be applied to other hematopoietic primary cells isolated from human or experimental animal models.
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Affiliation(s)
- Gaëtan Chicanne
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U1048, Université Toulouse III, Toulouse, France
| | - Justine Bertrand-Michel
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U1048, Université Toulouse III, Toulouse, France
- MetaToul-Lipidomic Facility, MetaboHUB, Université Toulouse III, Toulouse, France
| | - Julien Viaud
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U1048, Université Toulouse III, Toulouse, France
| | - Karim Hnia
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U1048, Université Toulouse III, Toulouse, France
| | | | - Bernard Payrastre
- Institut des Maladies Métaboliques et Cardiovasculaires, Inserm U1048, Université Toulouse III, Toulouse, France.
- Laboratoire d'Hématologie, Centre Hospitalier Universitaire de Toulouse, Toulouse, France.
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13
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Steinfeld N, Giridharan SSP, Kauffman EJ, Weisman LS. Simultaneous Detection of Phosphoinositide Lipids by Radioactive Metabolic Labeling. Methods Mol Biol 2021; 2251:1-17. [PMID: 33481228 PMCID: PMC8059495 DOI: 10.1007/978-1-0716-1142-5_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/12/2023]
Abstract
Phosphoinositide (PPI) lipids are a crucial class of low-abundance signaling molecules that regulate many processes within cells. Methods that enable simultaneous detection of all PPI lipid species provide a wholistic snapshot of the PPI profile of cells, which is critical for probing PPI biology. Here we describe a method for the simultaneous measurement of cellular PPI levels by metabolically labeling yeast or mammalian cells with myo-3H-inositol, extracting radiolabeled glycerophosphoinositides, and separating lipid species on an anion exchange column via HPLC.
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Affiliation(s)
- Noah Steinfeld
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
- Program in Cellular and Molecular Biology, University of Michigan, Ann Arbor, MI, USA
| | | | - Emily J Kauffman
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA
| | - Lois S Weisman
- Life Sciences Institute, University of Michigan, Ann Arbor, MI, USA.
- Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, MI, USA.
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14
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Abstract
Several studies have identified specific signalling functions for inositol polyphosphates (IPs) in different cell types and have led to the accumulation of new information regarding their cellular roles as well as new insights into their cellular production. These studies have revealed that interaction of IPs with several proteins is critical for stabilization of protein complexes and for modulation of enzymatic activity. This has not only revealed their importance in regulation of several cellular processes but it has also highlighted the possibility of new pharmacological interventions in multiple diseases, including cancer. In this review, we describe some of the intracellular roles of IPs and we discuss the pharmacological opportunities that modulation of IPs levels can provide.
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Affiliation(s)
- Tania Maffucci
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
- Correspondence: (T.M.); (M.F.); Tel.: +61-08-92669712 (M.F.)
| | - Marco Falasca
- School of Pharmacy and Biomedical Sciences, CHIRI, Curtin University, Perth 6102, Australia
- Correspondence: (T.M.); (M.F.); Tel.: +61-08-92669712 (M.F.)
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15
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Sangkaew O, Phaonakrop N, Roytrakul S, Yompakdee C. Metaproteomic investigation of functional insight into special defined microbial starter on production of fermented rice with melanogenesis inhibition activity. PLoS One 2020; 15:e0241819. [PMID: 33147601 PMCID: PMC7641363 DOI: 10.1371/journal.pone.0241819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 10/21/2020] [Indexed: 11/19/2022] Open
Abstract
Fermentation of rice grains requires diverse metabolic enzymes to be synchronously synthesized by the microbial community. Although many studies have used a metaproteomic approach to investigate the roles of microorganisms in improving the flavor of fermented foods, their roles in producing compounds with biological activity have not yet been reported. In a previous study the ferment obtained from unpolished black rice (UBR) fermented with a defined microbial starter (De-E11), comprised of Rhizopus oryzae, Saccharomycopsis fibuligera, Saccharomyces cerevisiae, and Pediococcus pentosaceus, (fermented UBR; FUBR) showed a strong melanogenesis inhibition activity in B16F10 melanoma cells. Hence, in this study, the roles of these microorganisms in producing the melanogenesis inhibitor(s) in FUBR was investigated using a metaproteomic approach. The melanogenesis inhibition activity of the FUBR liquid (FR-Liq) was found to increase with longer fermentation times. R. oryzae and S. cerevisiae were the major hosts of proteins related to the biosynthesis of melanogenesis inhibitor(s) in the FUBR. During fermentation, the enzymes involved in the degradation of UBR and in the carbohydrate metabolic process were identified. These enzymes were associated with the process of releasing of bioactive compound(s) from UBR and the synthesis of organic acids from the microorganisms, respectively. In addition, enzymes involved in the synthesis of some known melanogenesis inhibitor(s) and in the degradation of the melanogenesis stimulator (arsenate) were detected. Varying the combination of microorganisms in the De-E11 starter to produce the FR-Liq revealed that all four microorganisms were required to produce the most potent melanogenesis inhibition activity. Taken together with the metaproteomics results, this suggested that the microorganisms in De-E11 synchronously synthesize the FR-Liq with melanogenesis inhibition activity. In conclusion, this information on the metaproteome in FUBR will increase our understanding of the microbial metabolic modes and could lead to knowledge-based improvements in the fermented rice process to produce melanogenesis inhibitor(s).
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Affiliation(s)
- Orrarat Sangkaew
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
| | - Narumon Phaonakrop
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Klong Luang, Pathumthani, Thailand
| | - Sittiruk Roytrakul
- Functional Ingredients and Food Innovation Research Group, National Center for Genetic Engineering and Biotechnology, National Science and Technology Development Agency, Klong Luang, Pathumthani, Thailand
| | - Chulee Yompakdee
- Department of Microbiology, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok, Thailand
- * E-mail:
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16
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Shears SB, Wang H. Metabolism and Functions of Inositol Pyrophosphates: Insights Gained from the Application of Synthetic Analogues. Molecules 2020; 25:E4515. [PMID: 33023101 PMCID: PMC7583957 DOI: 10.3390/molecules25194515] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/25/2020] [Accepted: 09/27/2020] [Indexed: 12/17/2022] Open
Abstract
Inositol pyrophosphates (PP-InsPs) comprise an important group of intracellular, diffusible cellular signals that a wide range of biological processes throughout the yeast, plant, and animal kingdoms. It has been difficult to gain a molecular-level mechanistic understanding of the actions of these molecules, due to their highly phosphorylated nature, their low levels, and their rapid metabolic turnover. More recently, these obstacles to success are being surmounted by the chemical synthesis of a number of insightful PP-InsP analogs. This review will describe these analogs and will indicate the important chemical and biological information gained by using them.
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Affiliation(s)
- Stephen B. Shears
- Inositol Signaling Group, Signal Transduction Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709, USA;
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17
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Zuluaga AM, Mena-García A, Chito-Trujillo D, Rada-Mendoza M, Sanz ML, Ruiz-Matute AI. Development of a microwave-assisted extraction method for the recovery of bioactive inositols from lettuce (Lactuca sativa) byproducts. Electrophoresis 2020; 41:1804-1811. [PMID: 32885861 DOI: 10.1002/elps.202000201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/25/2020] [Accepted: 09/01/2020] [Indexed: 01/19/2023]
Abstract
A microwave-assisted extraction (MAE) method was developed for the extraction of bioactive inositols (D-chiro- and myo-inositols) from lettuce (Lactuca sativa) leaves as a strategy for the revalorization of these agrofood residues. Gas chromatography-mass spectrometry was selected for the simultaneous determination of inositols and sugars (glucose, fructose, and sucrose) in these samples. A Box-Behnken experimental design was used to maximize the extraction of inositols based on the results of single factor tests. Optimal conditions of the extraction process were as follows: liquid-to-solid ratio of 100:1 v/w, 40°C, 30 min extraction time, 20:80 ethanol:water (v/v), and one extraction cycle. When compared with conventional solid-liquid extraction (SLE), MAE was found to be more effective for the extraction of target bioactive carbohydrates (MAE 5.42 mg/g dry sample versus SLE 4.01 mg/g dry sample). Then, MAE methodology was applied to the extraction of inositols from L. sativa leaves of different varieties (var. longifolia, var. capitata and var. crispa). D-chiro- and myo-inositol contents varied between 0.57-7.15 and 0.83-3.48 mg/g dry sample, respectively. Interfering sugars were removed from the extracts using a biotechnological procedure based on the use of Saccharomyces cerevisiae for 24 h. The developed methodology was a good alternative to classical procedures to obtain extracts enriched in inositols from lettuce residues, which could be of interest for the agrofood industry.
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Affiliation(s)
- Ana M Zuluaga
- Grupo de investigación Biotecnología, Calidad Medioambiental y Seguridad Agroalimentaria (BICAMSA), Universidad del Cauca, Popayán, Colombia
| | - Adal Mena-García
- Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
| | - Diana Chito-Trujillo
- Grupo de investigación Biotecnología, Calidad Medioambiental y Seguridad Agroalimentaria (BICAMSA), Universidad del Cauca, Popayán, Colombia
| | - Maite Rada-Mendoza
- Grupo de investigación Biotecnología, Calidad Medioambiental y Seguridad Agroalimentaria (BICAMSA), Universidad del Cauca, Popayán, Colombia
| | - María L Sanz
- Instituto de Química Orgánica General (IQOG-CSIC), Madrid, Spain
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18
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Maffucci T, Falasca M. Inositol Polyphosphate-Based Compounds as Inhibitors of Phosphoinositide 3-Kinase-Dependent Signaling. Int J Mol Sci 2020; 21:E7198. [PMID: 33003448 PMCID: PMC7582811 DOI: 10.3390/ijms21197198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/21/2020] [Accepted: 09/21/2020] [Indexed: 02/07/2023] Open
Abstract
Signaling pathways regulated by the phosphoinositide 3-kinase (PI3K) enzymes have a well-established role in cancer development and progression. Over the past 30 years, the therapeutic potential of targeting this pathway has been well recognized, and this has led to the development of a multitude of drugs, some of which have progressed into clinical trials, with few of them currently approved for use in specific cancer settings. While many inhibitors compete with ATP, hence preventing the catalytic activity of the kinases directly, a deep understanding of the mechanisms of PI3K-dependent activation of its downstream effectors led to the development of additional strategies to prevent the initiation of this signaling pathway. This review summarizes previously published studies that led to the identification of inositol polyphosphates as promising parent molecules to design novel inhibitors of PI3K-dependent signals. We focus our attention on the inhibition of protein-membrane interactions mediated by binding of pleckstrin homology domains and phosphoinositides that we proposed 20 years ago as a novel therapeutic strategy.
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Affiliation(s)
- Tania Maffucci
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, UK
| | - Marco Falasca
- Metabolic Signalling Group, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
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19
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Hasi RY, Majima D, Morito K, Ali H, Kogure K, Nanjundan M, Hayashi J, Kawakami R, Kanemaru K, Tanaka T. Isolation of glycosylinositol phosphoceramide and phytoceramide 1-phosphate in plants and their chemical stabilities. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1152:122213. [PMID: 32615533 DOI: 10.1016/j.jchromb.2020.122213] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 05/13/2020] [Accepted: 06/02/2020] [Indexed: 11/17/2022]
Abstract
Glycosylinositol phosphoceramide (GIPC) is a sphingophospholipid in plants. Recently, we identified that GIPC is hydrolyzed to phytoceramide 1-phosphate (PC1P) by an uncharacterized phospholipase D activity following homogenization of certain plant tissues. We now developed methods for isolation of GIPC and PC1P from plant tissues and characterized their chemical stabilities. Hydrophilic solvents, namely a lower layer of a mixed solvent system consisting of isopropanol/hexane/water (55:20:25, v/v/v) was efficient solvent for extraction and eluent in column chromatography. GIPC was isolated by Sephadex column chromatography followed by TLC. A conventional method, such as the Bligh and Dyer method, was applicable for PC1P extraction. Specifically, PC1P was isolated by TLC following mild alkali treatment of lipid extracts of plants. The yields of GIPC and PC1P in our methods were both around 50-70%. We found that PC1P is tolerant against heat (up to 125 °C), strong acid (up to 10 M HCl), and mild alkali (0.1 M KOH). In contrast, significant degradation of GIPC occurred at 100 °C and 1.0 M HCl treatment, suggesting the instability of the inositol glycan moiety in these conditions. These data will be useful for further biochemical and nutritional studies on these sphingolipids.
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Affiliation(s)
- Rumana Yesmin Hasi
- Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Dai Majima
- Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Katsuya Morito
- Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Hanif Ali
- Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Kentaro Kogure
- Graduate School of Biomedical Sciences, Tokushima University, Tokushima 770-8505, Japan
| | - Meera Nanjundan
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8513, Japan
| | - Junji Hayashi
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8513, Japan
| | - Ryushi Kawakami
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8513, Japan
| | - Kaori Kanemaru
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8513, Japan
| | - Tamotsu Tanaka
- Graduate School of Technology, Industrial and Social Sciences, Tokushima University, Tokushima 770-8513, Japan.
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20
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Artini PG, Obino MER, Micelli E, Malacarne E, Vacca C, Papini F, Cela V. Effect of d-chiro-inositol and alpha-lipoic acid combination on COH outcomes in overweight/obese PCOS women. Gynecol Endocrinol 2020; 36:755-759. [PMID: 32157927 DOI: 10.1080/09513590.2020.1737007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Insulin resistance (IR) plays a central role in the onset of polycystic ovary syndrome (PCOS). Insulin so insulin-sensitizing like inositols have been proposed as first line therapy. Among them d-chiro-inositol (DCI) seems to improve glucose metabolism and to increase ovulation frequency. Other studies have demonstrated that alpha-lipoic acid (ALA), with its antioxidant role, can also improve endocrine and metabolic profile of PCOS patients especially with familial diabetes. This a retrospective observational study with the aim to evaluate possible advantages of an integrative preparation combining DCI 500 mg and ALA 300 mg in overweight/obese PCOS patients with or without diabetic relatives who underwent IVF. Twenty PCOS patients who were taking the integrative preparation underwent controlled ovarian hyperstimulation in our center. The group with diabetic relatives tended to have a lower dose of gonadotropin, shorter stimulation days, higher number of MII oocytes, and higher number of fertilized oocytes. A combined regimen of DCI and ALA could be an interesting strategy in overweight PCOS patients with familial diabetes underwent ART.
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Affiliation(s)
- Paolo Giovanni Artini
- Department of Experimental and Clinical Medicine, Division of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
| | - Maria Elena Rosa Obino
- Department of Experimental and Clinical Medicine, Division of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
| | - Elisabetta Micelli
- Department of Experimental and Clinical Medicine, Division of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
| | - Elisa Malacarne
- Department of Experimental and Clinical Medicine, Division of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
| | - Chiara Vacca
- Department of Experimental and Clinical Medicine, Division of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
| | - Francesca Papini
- Department of Experimental and Clinical Medicine, Division of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
| | - Vito Cela
- Department of Experimental and Clinical Medicine, Division of Obstetrics and Gynecology, University of Pisa, Pisa, Italy
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21
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Abstract
The low utilization rate of pesticides causes serious problems such as food safety and environmental pollution. Stimulus-responsive release can effectively improve the utilization rate of pesticides. Reactive oxygen species (ROS) burst, as an early event of plant-pathogen interaction, can stimulate the release of pesticides. In this work, a polymeric micelle with ROS-responsive was prepared and then Validamycin (Vail) was loaded into polymeric micelle to prepare Vail-loaded polymeric micelle. The Vail-loaded polymeric micelle displayed excellent ROS-dependent release kinetics. In vitro and in vivo antifungal experiments confirmed that the Vail-loaded polymeric micelle could improve antifungal efficacy against Rhizoctonia solani than with the Vail reagent. Therefore, as a biostimulation and controlled release system, ROS-responsive polymeric micelles can improve the utilization rate of pesticides and alleviate the problem of food safety and environmental pollution.
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Affiliation(s)
- Ruixin Li
- Institute of Environmental Systems Biology, Dalian Maritime University, Dalian 116026, China
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hongguo Xie
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Chunguang Zhang
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, China
| | - Yeqing Sun
- Institute of Environmental Systems Biology, Dalian Maritime University, Dalian 116026, China
| | - Heng Yin
- Dalian Engineering Research Center for Carbohydrate Agricultural Preparations, Liaoning Provincial Key Laboratory of Carbohydrates, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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22
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Hussain J, Chhabria D, Kirubakaran S. Design, synthesis and biological evaluation of new Myo-inositol derivatives as potential RAS inhibitors. Bioorg Med Chem Lett 2020; 30:127290. [PMID: 32631512 DOI: 10.1016/j.bmcl.2020.127290] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 02/07/2023]
Abstract
Ras is a small family of GTPases that control numerous cellular functions like cell proliferation, growth, survival, gene expression, and is closely engaged in cancer pathogenesis. The ras-targeted methodology entails a holy grail in oncology. Nevertheless, there are no specific molecules reported targeting the same, although it is a known oncogene for more than three decades. In this study, we have designed and synthesized new phosphate derivatives of Myo-inositol to inhibit the oncogenic KRAS pathway in breast cancer cells, which has been validated by cellular and theoretical studies. The synthesized compound 1b (C2-O-phosphate derivative of Myo-inositol 1,3,5-orthobenzoate) inhibited the downstream signaling pathway of oncogenic KRAS, RAF/MEK/ERK. Furthermore, we also found that this compound induced necrosis/apoptosis and causes cell cycle arrest. This class of molecules may work as a potential inhibitor of breast cancer caused by a mutation in KRAS and its downstream proteins. Though the efficacy of the molecules is in the micromolar scale, they have not been explored previously for RAS inhibition. Impressive preliminary results are presented in this article which could be further explored for its detailed biological studies to get better candidates as RAS inhibitors.
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Affiliation(s)
- Javeena Hussain
- Discipline of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar 382355, India
| | - Dimple Chhabria
- Discipline of Chemistry, IIT Gandhinagar, Palaj, Gandhinagar 382355, India
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23
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Gad D, Elhaak M, Pompa A, Mattar M, Zayed M, Fraternale D, Dietz KJ. A New Strategy to Increase Production of Genoprotective Bioactive Molecules from Cotyledon-Derived Silybum marianum L. Callus. Genes (Basel) 2020; 11:E791. [PMID: 32674373 PMCID: PMC7396986 DOI: 10.3390/genes11070791] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/07/2020] [Accepted: 07/09/2020] [Indexed: 11/17/2022] Open
Abstract
There is a need to enhance the production of bioactive secondary metabolites and to establish new production systems, e.g., for liver-protective compounds of Silybum marianum seeds. Quantifying and identifying the produced phytochemicals, and examining their protective effects against genotoxic agents, is of great interest. This study established a protocol for the qualitative and quantitative production of hepatoprotective compounds in cotyledon-derived Silybum marianum callus through optimized supplementation of the MS medium with the growth regulators 2,4-D, benzylaminopurine, myoinositol, and asparagine. High-performance liquid chromatography (HPLC) coupled with electrospray ionisation mass spectrometry (ESI-MS) allowed for identification and quantification of the produced compounds. None of the growth medium combinations supported a detectable production of silymarin. Instead, the generated calli accumulated phenolic acids, in particular chlorogenic acid and dicaffeoylquinic acid, as revealed by HPLC and mass spectrometric analysis. 4-Nitro-o-phenylenediamine (NPD) was employed in the AMES-test with Salmonella typhimurium strain TA98 because it is a potent mutagen for this strain. Results revealed that callus extract had a high anti-genotoxic activity with respect to standard silymarin but more evident with respect seed extract. The callus produced chlorogenic acid and dicaffeoylquinic acid, which revealed higher bioactivity than silymarin. Both compounds were not formed or could not be detected in the seeds of Silybum marianum Egyptian ecotype.
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Affiliation(s)
- Dina Gad
- Biochemistry and Physiology of Plants, Faculty of Biology W5, Bielefeld University, 33501 Bielefeld, Germany;
- Faculty of Science, Botany Department, Menoufia University, Shebin EL-koum, Egypt; (M.M.); (M.Z.)
| | - Mahmoud Elhaak
- Faculty of Science, Botany Department, Tanta University, Tanta, Egypt;
| | - Andrea Pompa
- Department of Biomolecular Sciences, University of Urbino “Carlo Bo” Via Donato Bramante, 28, 61029 Urbino (PU), Italy;
| | - Magdy Mattar
- Faculty of Science, Botany Department, Menoufia University, Shebin EL-koum, Egypt; (M.M.); (M.Z.)
| | - Mohamed Zayed
- Faculty of Science, Botany Department, Menoufia University, Shebin EL-koum, Egypt; (M.M.); (M.Z.)
| | - Daniele Fraternale
- Department of Biomolecular Sciences, University of Urbino “Carlo Bo” Via Donato Bramante, 28, 61029 Urbino (PU), Italy;
| | - Karl-Josef Dietz
- Biochemistry and Physiology of Plants, Faculty of Biology W5, Bielefeld University, 33501 Bielefeld, Germany;
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Nguyen KV, Ho DV, Nguyen HM, Do TT, Phan KV, Morita H, Heinämäki J, Raal A, Nguyen HT. chiro-Inositol Derivatives from Chisocheton paniculatus Showing Inhibition of Nitric Oxide Production. J Nat Prod 2020; 83:1201-1206. [PMID: 32208696 DOI: 10.1021/acs.jnatprod.9b01239] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Six new chiro-inositol derivatives (1-6) were isolated from the leaves of Chisocheton paniculatus collected in Vietnam. Their chemical structures were elucidated by 1D and 2D NMR and HRESIMS analyses. All isolated compounds were evaluated for their inhibitory activity against lipopolysaccharide-induced nitric oxide (NO) production in the RAW 264.7 macrophage cell line. Compound 4 exhibited potent inhibitory activity for NO production with an IC50 value of 7.1 μM.
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Affiliation(s)
- Khan Viet Nguyen
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
- Institute of Pharmacy, Faculty of Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Duc Viet Ho
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
| | - Hien Minh Nguyen
- Faculty of Pharmacy, Ton Duc Thang University, Ho Chi Minh City, Vietnam
| | - Thao Thi Do
- Institute of Biotechnology, The Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Kiem Van Phan
- Institute of Marine Biochemistry, The Vietnam Academy of Science and Technology, Hanoi, Vietnam
| | - Hiroyuki Morita
- Institute of Natural Medicine, University of Toyama, Toyama, 930-0194, Japan
| | - Jyrki Heinämäki
- Institute of Pharmacy, Faculty of Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Ain Raal
- Institute of Pharmacy, Faculty of Medicine, University of Tartu, 50411 Tartu, Estonia
| | - Hoai Thi Nguyen
- Faculty of Pharmacy, Hue University of Medicine and Pharmacy, Hue University, Hue City, Vietnam
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25
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Yang SX, Song CG, Kuang Y, Liu B, Zhang YX, Zhang MZ, Zhang CY, Ding G, Qin JC. Cytotoxic Activity of Inositol Angelates and Tirucallane-Type Alkaloids from Amoora Dasyclada. Molecules 2020; 25:molecules25051222. [PMID: 32182779 PMCID: PMC7179408 DOI: 10.3390/molecules25051222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 03/02/2020] [Accepted: 03/06/2020] [Indexed: 11/16/2022] Open
Abstract
Three new inositol angelate compounds (1–3) and two new tirucallane-type alkaloids (4 and 5) were isolated from the Amoora dasyclada, and their structures were established mainly by means of combination of 1D and 2D nuclear magnetic resonance and HR-ESI-MS. Based on cytotoxicity testing, compounds 4 and 5 exhibited significant cytotoxic activity against human cancer cell line HepG2 with IC50 value at 8.4 and 13.2 μM. In addition, compounds 4 and 5 also showed remarkable growth inhibitory activity to Artemia salina larvae.
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Affiliation(s)
- Sheng-Xiang Yang
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Lin’an 311300, Zhejiang, China; (S.-X.Y.); (Y.K.)
| | - Cheng-Gang Song
- College of Plant Science, Jilin University, Xi’an Road No. 5333, Changchun 130062, Jilin, China; (C.-G.S.); (B.L.); (Y.-X.Z.); (M.-Z.Z.)
| | - Yi Kuang
- Zhejiang Provincial Key Laboratory of Chemical Utilization of Forestry Biomass, Zhejiang A&F University, Lin’an 311300, Zhejiang, China; (S.-X.Y.); (Y.K.)
| | - Bing Liu
- College of Plant Science, Jilin University, Xi’an Road No. 5333, Changchun 130062, Jilin, China; (C.-G.S.); (B.L.); (Y.-X.Z.); (M.-Z.Z.)
| | - Yan-Xin Zhang
- College of Plant Science, Jilin University, Xi’an Road No. 5333, Changchun 130062, Jilin, China; (C.-G.S.); (B.L.); (Y.-X.Z.); (M.-Z.Z.)
| | - Ming-Zhe Zhang
- College of Plant Science, Jilin University, Xi’an Road No. 5333, Changchun 130062, Jilin, China; (C.-G.S.); (B.L.); (Y.-X.Z.); (M.-Z.Z.)
| | - Chun-Ying Zhang
- The clinical medicine department of Changchun Medical College, Jilin Road No. 6177, Changchun 130013, Jilin, China;
| | - Gang Ding
- Institute of Medicinal Plant Department, Chinese Academy of medical Sciences and Peking Union Medical College, Beijing 100193, China
- Correspondence: (G.D.); (J.-C.Q.); Tel./Fax: +86-431-87835722 (J.-C.Q.)
| | - Jian-Chun Qin
- College of Plant Science, Jilin University, Xi’an Road No. 5333, Changchun 130062, Jilin, China; (C.-G.S.); (B.L.); (Y.-X.Z.); (M.-Z.Z.)
- Correspondence: (G.D.); (J.-C.Q.); Tel./Fax: +86-431-87835722 (J.-C.Q.)
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26
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Warepam M, Ahmad K, Rahman S, Rahaman H, Kumari K, Singh LR. N-Acetylaspartate Is an Important Brain Osmolyte. Biomolecules 2020; 10:biom10020286. [PMID: 32059525 PMCID: PMC7072545 DOI: 10.3390/biom10020286] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 01/29/2020] [Accepted: 02/08/2020] [Indexed: 01/11/2023] Open
Abstract
Most of the human diseases related to various proteopathies are confined to the brain, which leads to the development of various forms of neurological disorders. The human brain consists of several osmolytic compounds, such as N-Acetylaspartate (NAA), myo-inositol (mI), glutamate (Glu), glutamine (Gln), creatine (Cr), and choline-containing compounds (Cho). Among these osmolytes, the level of NAA drastically decreases under neurological conditions, and, hence, NAA is considered to be one of the most widely accepted neuronal biomarkers in several human brain disorders. To date, no data are available regarding the effect of NAA on protein stability, and, therefore, the possible effect of NAA under proteopathic conditions has not been fully uncovered. To gain an insight into the effect of NAA on protein stability, thermal denaturation and structural measurements were carried out using two model proteins at different pH values. The results indicate that NAA increases the protein stability with an enhancement of structure formation. We also observed that the stabilizing ability of NAA decreases in a pH-dependent manner. Our study indicates that NAA is an efficient protein stabilizer at a physiological pH.
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Affiliation(s)
- Marina Warepam
- Department of Biotechnology, Manipur University, Manipur 795003, India; (M.W.); (H.R.)
| | - Khurshid Ahmad
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea;
| | - Safikur Rahman
- Department of Botany, Munshi Singh College, BR Ambedkar Bihar University, Muzaffarpur, Bihar 845401, India;
| | - Hamidur Rahaman
- Department of Biotechnology, Manipur University, Manipur 795003, India; (M.W.); (H.R.)
| | - Kritika Kumari
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi-110007, India;
| | - Laishram Rajendrakumar Singh
- Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi-110007, India;
- Correspondence: ; Tel.: +91-9811630757; Fax: +91-11-27666248
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27
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Duliński R, Zdaniewicz M, Pater A, Poniewska D, Żyła K. The Impact of Phytases on the Release of Bioactive Inositols, the Profile of Inositol Phosphates, and the Release of Selected Minerals in the Technology of Buckwheat Beer Production. Biomolecules 2020; 10:biom10020166. [PMID: 31973207 PMCID: PMC7072348 DOI: 10.3390/biom10020166] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 01/17/2020] [Accepted: 01/18/2020] [Indexed: 01/01/2023] Open
Abstract
A relatively high concentration of phytate in buckwheat malt, and the low activity of endogenous buckwheat phytases, both of which limit the effective use of substrates (starch, proteins, minerals) for fermentation and yeast metabolism, gives rise to the potential for application of phytases in beer production. This study aims at obtaining a 100% buckwheat wort with high bioactive cyclitols (myo-inositol and D-chiro-inositol) concentrations released by exogenous phytases and acid phosphatases. Two mashing programs were used in the study, i.e., (1) typical for basic raw materials, namely the well-established Congress method, and (2) optimized for phytase activity. The results indicated a nearly 50% increase in the level of bioactive myo-inositol and an 80% degradation of phytate in the wort as a result of simultaneous application of phytase and phosphatase enzymes in the mashing of buckwheat malt. In addition, high D-chiro-inositol concentrations were released from malt to the buckwheat wort. The concerted action of the two phytases significantly increased (19–44%) Zn2+ concentrations in wort. This may be of great importance during mash fermentation by Saccharomyces cerevisiae yeasts. There is a potential to develop technology for buckwheat beer production, which, in addition to being free from gluten, comprises high levels of bioactive myo- and D-chiro-inositols.
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Affiliation(s)
- Robert Duliński
- Department of Biotechnology and General Technology of Food, Faculty of Food Technology, Agricultural University in Krakow, Balicka 122, 30-149 Krakow, Poland; (D.P.)
- Correspondence: ; Tel.: +48-12-6624796; Fax: +48-12-6624795
| | - Marek Zdaniewicz
- Department of Fermentation Technology and Microbiology, Faculty of Food Technology, Agricultural University in Krakow, Balicka 122, 30-149 Krakow, Poland; (M.Z.); (A.P.)
| | - Aneta Pater
- Department of Fermentation Technology and Microbiology, Faculty of Food Technology, Agricultural University in Krakow, Balicka 122, 30-149 Krakow, Poland; (M.Z.); (A.P.)
| | - Dagmara Poniewska
- Department of Biotechnology and General Technology of Food, Faculty of Food Technology, Agricultural University in Krakow, Balicka 122, 30-149 Krakow, Poland; (D.P.)
| | - Krzysztof Żyła
- Department of Biotechnology and General Technology of Food, Faculty of Food Technology, Agricultural University in Krakow, Balicka 122, 30-149 Krakow, Poland; (D.P.)
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28
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Abstract
Glutathione (γ-l-glutamyl-l-cysteinylglycine, GSH) is a powerful cellular redox agent. In nature only the l,l-form is common among the tree of life. It serves as antioxidant or redox buffer system, protein regeneration and activation by interaction with thiol groups, unspecific reagent for conjugation during detoxification, marker for amino acid or peptide transport even through membranes, activation or solubilization of compounds during degradative pathways or just as redox shuttle. However, the role of GSH production and utilization in bacteria is more complex and especially little is known for the Actinobacteria. Some recent reports on GSH use in degradative pathways came across and this is described herein. GSH is used by transferases to activate and solubilize epoxides. It allows funneling epoxides as isoprene oxide or styrene oxide into central metabolism. Thus, the distribution of GSH synthesis, recycling and application among bacteria and especially Actinobacteria are highlighted including the pathways and contributing enzymes.
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Affiliation(s)
- Anna C Lienkamp
- Microbial Biotechnology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany
| | - Thomas Heine
- Environmental Microbiology, Faculty of Chemistry and Physics, TU Bergakademie Freiberg, Freiberg, Germany
| | - Dirk Tischler
- Microbial Biotechnology, Faculty of Biology and Biotechnology, Ruhr University Bochum, Bochum, Germany.
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29
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Liu ZX, You S, Tang BP, Wang B, Sheng S, Wu FA, Wang J. Inositol as a new enhancer for improving lipid production and accumulation in Schizochytrium sp. SR21. Environ Sci Pollut Res Int 2019; 26:35497-35508. [PMID: 31410827 DOI: 10.1007/s11356-019-06056-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Lipids produced from agricultural and industrial residues using oleaginous microorganisms for use as biofuels are attracting the attention of researchers due to their environmental benefits. However, low efficiencies and high costs limit their application to a certain extent. The present study is the first to use inositol as an enhancer to improve the production and accumulation of lipids during fermentation by the microalga Schizochytrium sp. SR21. The study aimed to maximize the production of lipids and docosahexaenoic acid (DHA) by optimizing the conditions of inositol addition into the fermentation medium. The corresponding key enzyme and metabolite profiles of SR21 were evaluated. The results indicated that the addition of 120 mg L-1 of inositol to the medium at 48 h improved lipid and DHA production by 13.90 and 20.82%, resulting in total concentrations of 22.86 and 8.53 g/L, respectively. Moreover, the ratio of unsaturated fatty acids (UFAs) to saturated fatty acids (SFAs) increased by 23.38% and is consistent with the results of the metabolomic analysis. The activity of enzymes (i.e., PC, G6PDH, NADPH-ME, and ACL) related to fatty acid synthesis in strain SR21 also increased significantly (43.38%, 28.68%, 37.47%, and 19.87%, respectively). Metabolomic analysis also showed that inositol promoted lipid synthesis in SR21 and significantly increased the relative proportion of UFAs by affecting the citrate cycle and SFA and UFA metabolic pathways. Thus, inositol is an ideal enhancer of lipid production and accumulation by oleaginous microorganisms. Graphical abstract.
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Affiliation(s)
- Zhao-Xin Liu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Shuai You
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China
| | - Bin-Ping Tang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Bo Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
| | - Sheng Sheng
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China
| | - Fu-An Wu
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China
| | - Jun Wang
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang, 212018, People's Republic of China.
- Sericultural Research Institute, Chinese Academy of Agricultural Sciences, Zhenjiang, 212018, People's Republic of China.
- Key Laboratory of Silkworm and Mulberry Genetic Improvement, Ministry of Agriculture and Rural Affairs, Zhenjiang, 212018, People's Republic of China.
- Jiangsu Key Laboratory of Sericultural Biology and Biotechnology, Zhenjiang, 212018, People's Republic of China.
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30
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Abstract
Osmolytes are small organic compounds that can affect the stability of proteins in living cells. The mechanism of osmolytes' protective effects on protein structure and dynamics has not been fully explained, but in general, two possibilities have been suggested and examined: a direct interaction of osmolytes with proteins (water replacement hypothesis), and an indirect interaction (vitrification hypothesis). Here, to investigate these two possible mechanisms, we studied myoglobin-osmolyte systems using FTIR, UV-vis, CD, and femtosecond IR pump-probe spectroscopy. Interestingly, noticeable changes are observed in both the lifetime of the CO stretch of CO-bound myoglobin and the spectra of UV-vis, CD, and FTIR upon addition of the osmolytes. In addition, the temperature-dependent CD studies reveal that the protein's thermal stability depends on molecular structure, hydrogen-bonding ability, and size of osmolytes. We anticipate that the present experimental results provide important clues about the complicated and intricate mechanism of osmolyte effects on protein structure and dynamics in a crowded cellular environment.
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Affiliation(s)
- Dorota Kossowska
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Seoul 02841, Korea.
| | - Kyungwon Kwak
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Seoul 02841, Korea.
- Department of Chemistry, Korea University, Seoul 136-713, Korea.
| | - Minhaeng Cho
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Seoul 02841, Korea.
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31
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Ahn CH, Hossain MA, Lee E, Kanth BK, Park PB. Increased salt and drought tolerance by D-pinitol production in transgenic Arabidopsis thaliana. Biochem Biophys Res Commun 2018; 504:315-320. [PMID: 30180952 DOI: 10.1016/j.bbrc.2018.08.183] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 08/28/2018] [Indexed: 11/18/2022]
Abstract
D-ononitol epimerase (OEP) catalyzes the conversion of D-ononitol to D-pinitol, which is the last step in the biosynthetic pathway, where myo-inositol is converted to pinitol in higher plants. In this study, OEP cDNA was isolated from Glycine max (GmOEP) and was functionally characterized, which confirmed that GmOEP expression was induced by high salinity and drought stress treatments. To understand the biological function of GmOEP, transgenic Arabidopsis plants overexpressing this protein were constructed. The transgenic Arabidopsis plants displayed enhanced tolerance to high salinity and drought stress treatments.
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Affiliation(s)
- Chul-Hyun Ahn
- Department of Bioscience and Biotechnology, University of Suwon, Hwaseong, South Korea
| | - Md Amir Hossain
- Department of Bioscience and Biotechnology, University of Suwon, Hwaseong, South Korea; Department of Genetics and Plant Breeding, Bangladesh Agricultural University, Mymensingh, Bangladesh
| | - Eunjeong Lee
- Department of Bioscience and Biotechnology, University of Suwon, Hwaseong, South Korea
| | - Bashista Kumar Kanth
- Department of Bioscience and Biotechnology, University of Suwon, Hwaseong, South Korea
| | - Phun Bum Park
- Department of Bioscience and Biotechnology, University of Suwon, Hwaseong, South Korea.
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Imber M, Pietrzyk-Brzezinska AJ, Antelmann H. Redox regulation by reversible protein S-thiolation in Gram-positive bacteria. Redox Biol 2018; 20:130-145. [PMID: 30308476 PMCID: PMC6178380 DOI: 10.1016/j.redox.2018.08.017] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 08/09/2018] [Accepted: 08/23/2018] [Indexed: 12/21/2022] Open
Abstract
Low molecular weight (LMW) thiols play an important role as thiol-cofactors for many enzymes and are crucial to maintain the reduced state of the cytoplasm. Most Gram-negative bacteria utilize glutathione (GSH) as major LMW thiol. However, in Gram-positive Actinomycetes and Firmicutes alternative LMW thiols, such as mycothiol (MSH) and bacillithiol (BSH) play related roles as GSH surrogates, respectively. Under conditions of hypochlorite stress, MSH and BSH are known to form mixed disulfides with protein thiols, termed as S-mycothiolation or S-bacillithiolation that function in thiol-protection and redox regulation. Protein S-thiolations are widespread redox-modifications discovered in different Gram-positive bacteria, such as Bacillus and Staphylococcus species, Mycobacterium smegmatis, Corynebacterium glutamicum and Corynebacterium diphtheriae. S-thiolated proteins are mainly involved in cellular metabolism, protein translation, redox regulation and antioxidant functions with some conserved targets across bacteria. The reduction of protein S-mycothiolations and S-bacillithiolations requires glutaredoxin-related mycoredoxin and bacilliredoxin pathways to regenerate protein functions. In this review, we present an overview of the functions of mycothiol and bacillithiol and their physiological roles in protein S-bacillithiolations and S-mycothiolations in Gram-positive bacteria. Significant progress has been made to characterize the role of protein S-thiolation in redox-regulation and thiol protection of main metabolic and antioxidant enzymes. However, the physiological roles of the pathways for regeneration are only beginning to emerge as well as their interactions with other cellular redox systems. Future studies should be also directed to explore the roles of protein S-thiolations and their redox pathways in pathogenic bacteria under infection conditions to discover new drug targets and treatment options against multiple antibiotic resistant bacteria. Bacillithiol and mycothiol are major LMW thiols in many Gram-positive bacteria. HOCl leads to widespread protein S-mycothiolation and S-bacillithiolation which function in thiol-protection and redox regulation. Redox-sensitive metabolic and antioxidant enzymes are main targets for S-mycothiolation or S-bacillithiolation. Mycoredoxin and bacilliredoxin pathways mediate reduction of S-thiolations.
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Affiliation(s)
- Marcel Imber
- Freie Universität Berlin, Institute for Biology-Microbiology, Königin-Luise-Strasse 12-16, D-14195 Berlin, Germany
| | - Agnieszka J Pietrzyk-Brzezinska
- Freie Universität Berlin, Laboratory of Structural Biochemistry, D-14195 Berlin, Germany; Institute of Technical Biochemistry, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, Lodz 90-924, Poland
| | - Haike Antelmann
- Freie Universität Berlin, Institute for Biology-Microbiology, Königin-Luise-Strasse 12-16, D-14195 Berlin, Germany.
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Fraticelli F, Celentano C, Zecca IA, Di Vieste G, Pintaudi B, Liberati M, Franzago M, Di Nicola M, Vitacolonna E. Effect of inositol stereoisomers at different dosages in gestational diabetes: an open-label, parallel, randomized controlled trial. Acta Diabetol 2018; 55:805-812. [PMID: 29774465 DOI: 10.1007/s00592-018-1157-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 05/06/2018] [Indexed: 12/20/2022]
Abstract
AIMS Gestational diabetes mellitus (GDM) is the most common metabolic disorder of pregnancy. The aim of the study is to compare the effect of different dosages of inositol stereoisomers supplementation on insulin resistance levels and several maternal-fetal outcomes in GDM women. METHODS Participants were randomly allocated to receive daily: 400 mcg folic acid (control treatment), 4000 mg myo-inositol plus 400 mcg folic acid (MI treatment), 500 mg D-chiro-inositol plus 400 mcg folic acid (DCI treatment) or 1100/27.6 mg myo/D-chiro-inositol plus 400 mcg folic acid (MI plus DCI treatment). The homeostasis model assessment of insulin resistance (HOMA-IR) was measured at the diagnosis of GDM and after 8 weeks of treatment. Secondary outcomes, obstetric outcomes and any maternal or fetal complication at delivery were also collected. RESULTS Eighty GDM women were assigned to one of the four arms of study (20 per arm). A significant delta decrease in HOMA-IR index was found in subjects of MI group without insulin therapy compared to control group (p < 0.001). A lower variation in average weight gain (at delivery vs pre-pregnancy and OGTT period) was detected in MI group vs control group (p = 0.001 and p = 0.019, respectively). Moreover, women exposed to MI and MI plus DCI required a significantly lower necessity of an intensified insulin treatment. Women of the control group had newborns with higher birth weight compared with women treated with inositol (p = 0.032). CONCLUSIONS Our study provides interesting but preliminary results about the potential role of inositol stereoisomers supplementation in the treatment of GDM on insulin resistance levels and several maternal-fetal outcomes. Further studies are required to examine the optimal and effective dosages of different inositol supplements. CLINICAL TRIAL REG. NO.: NCT02097069, ClinicalTrial.gov.
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Affiliation(s)
- Federica Fraticelli
- Department of Medicine and Aging, School of Medicine and Health Sciences, "G. d'Annunzio" University Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Claudio Celentano
- Department of Medicine and Aging, School of Medicine and Health Sciences, "G. d'Annunzio" University Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Isaia Al Zecca
- Department of Medicine and Science of Ageing, School of Hygiene and Preventive Medicine, "G. D'Annunzio" University Chieti-Pescara, Chieti, Italy
| | | | | | - Marco Liberati
- Department of Medicine and Aging, School of Medicine and Health Sciences, "G. d'Annunzio" University Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Marica Franzago
- Department of Medicine and Aging, School of Medicine and Health Sciences, "G. d'Annunzio" University Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Marta Di Nicola
- Laboratory of Biostatistics, Department of Medical, Oral and Biotechnological Sciences, "G. D'Annunzio" University Chieti-Pescara, Chieti, Italy
| | - Ester Vitacolonna
- Department of Medicine and Aging, School of Medicine and Health Sciences, "G. d'Annunzio" University Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy.
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Abstract
The aim of this review is to present the current data about the role of inositols in the management of polycystic ovary syndrome (PCOS) women and in the prevention and treatment of gestational diabetes mellitus (GDM). We analyzed the available literature with key words PCOS, Myo-inositol, D-chiro-inositol, assisted reproductive technologies and GDM. The most recent literature would suggest that Myo-inositol, D-chiro-inositol and their combination in physiological ratio 40:1 could represent an important therapeutic strategy for the improvement of metabolic, hormonal and reproductive aspects of PCOS. In assisted reproductive technologies, however, myo-inositol and the combined treatment, despite D-chiro-inositol monotherapy, are able to improve clinical outcomes. Myo-inositol monotherapy results more effective in preventing and treating GDM even if a larger cohort of studies is needed to better clarify these results.
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Affiliation(s)
- Antoaneta Gateva
- a Clinic of Endocrinology , Alexandrovska University Hospital, Medical University , Sofia , Bulgaria
| | - Vittorio Unfer
- b Health Department , UniPoliSi - Institut des Etudes Universitaires , Disentis , Switzerland
| | - Zdravko Kamenov
- a Clinic of Endocrinology , Alexandrovska University Hospital, Medical University , Sofia , Bulgaria
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Worawalai W, Sompornpisut P, Wacharasindhu S, Phuwapraisirisan P. Quercitol: From a Taxonomic Marker of the Genus Quercus to a Versatile Chiral Building Block of Antidiabetic Agents. J Agric Food Chem 2018; 66:5741-5745. [PMID: 29793339 DOI: 10.1021/acs.jafc.8b01584] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Quercitol is a cyclohexanepentol that has been recognized as a biomarker of plants in genus Quercus, which includes oak. As a result of its glucose-like structure, it has been introduced as an alternative chiral building block in the synthesis of several bioactive compounds. Our continuing investigations on the synthesis of antidiabetic agents from quercitol have demonstrated that this chiral synthon can generate diverse structural features with improved hypoglycemic activity.
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Moure MJ, Zhuo Y, Boons GJ, Prestegard JH. Perdeuterated and 13C-enriched myo-inositol for DNP assisted monitoring of enzymatic phosphorylation by inositol-3-kinase. Chem Commun (Camb) 2017; 53:12398-12401. [PMID: 29067365 PMCID: PMC5690875 DOI: 10.1039/c7cc07023c] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of perdeuterated and 13C enriched myo-inositol is presented. Myo-inositol and its derivatives are of interest as substrates for enzymes producing phosphorylated species with regulatory functions in many organisms. Its utility in monitoring real-time phosphorylation by myo-inositol-3-kinase is illustrated using dynamic nuclear polarization (DNP) to enhance NMR observation.
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Affiliation(s)
- M. J. Moure
- Complex Carbohydrate Research Center, University of Georgia, Athens GA 30602
| | - Y. Zhuo
- Complex Carbohydrate Research Center, University of Georgia, Athens GA 30602
| | - G. J. Boons
- Complex Carbohydrate Research Center, University of Georgia, Athens GA 30602
| | - J. H. Prestegard
- Complex Carbohydrate Research Center, University of Georgia, Athens GA 30602
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Badr JM, Ibrahim SRM, Abou-Hussein DR. Plicosepalin A, a new antioxidant catechin-gallic acid derivative of inositol from the mistletoe Plicosepalus curviflorus. ACTA ACUST UNITED AC 2017; 71:375-380. [PMID: 27206319 DOI: 10.1515/znc-2015-0231] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 04/20/2016] [Indexed: 01/27/2023]
Abstract
Phytochemical investigation of the semi-parasitic plant, Plicosepalus curviflorus (Loranthaceae) growing in Saudi Arabia resulted in the isolation of a new catechin-gallic acid derivative of inositol, plicosepalin A (1) [(+) catechin-4'-O-(1″-O-galloyl-5″-O-methyl)-myo-inositol], along with seven known compounds: methyl gallate (2), catechin (3), quercetin (4), gallic acid (5), lupeol (6), β-sitosterol (7), and ursolic acid (8). Their structures were elucidated on the basis of spectroscopic analyses, including HRESIMS, ESIMS, 1H and 13C NMR, HSQC, and HMBC, as well as comparison with reported data. The antioxidant and antimicrobial activities of 1 were evaluated using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and the disc diffusion assay, respectively. Compound 1 exhibited potent free radical scavenging activity with an IC50 value of 9.0 ± 0.27 μM. Moreover, significant activities against Staphylococcus aureus and Bacillus subtilis were recorded.
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38
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Lu Q, Tang Q, Chen Z, Zhao S, Qing G, Sun T. Developing an Inositol-Phosphate-Actuated Nanochannel System by Mimicking Biological Calcium Ion Channels. ACS Appl Mater Interfaces 2017; 9:32554-32564. [PMID: 28871777 DOI: 10.1021/acsami.7b09992] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In eukaryotic cells, ion channels, which ubiquitously present as polypeptides or proteins, usually regulate the ion transport across biological membranes by conformational switching of the channel proteins in response to the binding of diverse signaling molecules (e.g., inositol phosphate, abbreviated to InsP). To mimic the gating behaviors of natural Ca2+ channels manipulated by InsPs, a smart poly[(N-isopropylacrylamide-co-4-(3-acryloylthioureido) benzoic acid)0.2] (denoted as PNI-co-ATBA0.2) was integrated onto a porous anodic alumina (PAA) membrane, building an InsP-actuated nanochannel system. Driven by the intensive hydrogen bonding complexation of ATBA monomer with InsP, the copolymer chains displayed a remarkable and reversible conformational transition from a contracted state to a swollen one, accompanied with significant changes in surface morphology, wettability, and viscoelasticity. Benefiting from these features, dynamic gating behaviors of the nanochannels located on the copolymer-modified PAA membrane could be precisely manipulated by InsPs, reflected as a satisfactory linear relationship between real-time variation in transmembrane ionic current and the InsP concentration over a wide range from 1 nmol L-1 to 10 μmol L-1, as well as a clear discrimination among InsP2, InsP3, and InsP6. This study indicates the great potential of biomolecule-responsive polymers in the fabrication of biomimetic ion nanochannels and other nanoscale biodevices.
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Affiliation(s)
- Qi Lu
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Qiuhan Tang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology , 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Zhonghui Chen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Shilong Zhao
- Tsinghua-Berkeley Shenzhen Institute, Tsinghua University , 2279 Lishui Road, Shenzhen 518000, P. R. China
| | - Guangyan Qing
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , 122 Luoshi Road, Wuhan 430070, P. R. China
| | - Taolei Sun
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology , 122 Luoshi Road, Wuhan 430070, P. R. China
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology , 122 Luoshi Road, Wuhan 430070, P. R. China
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Mo EJ, Ahn JH, Jo YH, Kim SB, Hwang BY, Lee MK. Inositol Derivatives and Phenolic Compounds from the Roots of Taraxacum coreanum. Molecules 2017; 22:molecules22081349. [PMID: 28805750 PMCID: PMC6152297 DOI: 10.3390/molecules22081349] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 08/13/2017] [Accepted: 08/13/2017] [Indexed: 11/18/2022] Open
Abstract
In this study, the characterization of chemical constituents and biological activity of the roots of Taraxacum coreanum (Asteraceae) was attempted. Phytochemical investigation of the roots of T. coreanum led to the isolation of two new inositol derivatives, taraxinositols A (1) and B (2), and a new phenolic compound, taraxinol (16), together with twenty known compounds including four inositol derivatives, neo-inositol-1,4-bis (4-hydroxybenzeneacetate) (3), chiro-inositol-1,5-bis(4- hydroxybenzeneacetate) (4), chiro-inositol-2,3-bis (4-hydroxybenzeneacetate) (5) and chiro-inositol- 1,2,3-tris (4-hydroxybenzeneacetate) (6), nine phenolic compounds: p-hydroxybenzaldehyde (7), vanillin (8), syringaldehyde (9), vanillic acid (10), 4-methoxyphenylacetic acid (11), 4-hydroxy- phenylacetic acid methyl ester (12), optivanin (13), isoferulic acid (14) and dihydroconiferyl alcohol (15), four coumarins: nodakenetin (17), decursinol (18), prangol (19) and isobyakangelicin (20), and three lignans: syringaresinol-4′-O-β-d-glucoside (21), syringaresinol (22), and pinoresinol (23). The structures of isolated compounds were determined on the basis of spectroscopic analysis. Among the isolated compounds, vanillic acid, isoferulic acid and syringaresinol showed radical scavenging activity with IC50 values ranging from 30.4 to 75.2 μM.
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Affiliation(s)
- Eun Jin Mo
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Korea.
| | - Jong Hoon Ahn
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Korea.
| | - Yang Hee Jo
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Korea.
| | - Seon Beom Kim
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Korea.
| | - Bang Yeon Hwang
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Korea.
| | - Mi Kyeong Lee
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 28160, Korea.
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40
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Kumar A, Balakrishna AM, Nartey W, Manimekalai MSS, Grüber G. Redox chemistry of Mycobacterium tuberculosis alkylhydroperoxide reductase E (AhpE): Structural and mechanistic insight into a mycoredoxin-1 independent reductive pathway of AhpE via mycothiol. Free Radic Biol Med 2016; 97:588-601. [PMID: 27417938 DOI: 10.1016/j.freeradbiomed.2016.07.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 07/07/2016] [Accepted: 07/09/2016] [Indexed: 11/28/2022]
Abstract
Mycobacterium tuberculosis (Mtb) has the ability to persist within the human host for a long time in a dormant stage and re-merges when the immune system is compromised. The pathogenic bacterium employs an elaborate antioxidant defence machinery composed of the mycothiol- and thioredoxin system in addition to a superoxide dismutase, a catalase, and peroxiredoxins (Prxs). Among the family of Peroxiredoxins, Mtb expresses a 1-cysteine peroxiredoxin, known as alkylhydroperoxide reductase E (MtAhpE), and defined as a potential tuberculosis drug target. The reduced MtAhpE (MtAhpE-SH) scavenges peroxides to become converted to MtAhpE-SOH. To provide continuous availability of MtAhpE-SH, MtAhpE-SOH has to become reduced. Here, we used NMR spectroscopy to delineate the reduced (MtAhpE-SH), sulphenic (MtAhpE-SOH) and sulphinic (MtAhpE-SO2H) states of MtAhpE through cysteinyl-labelling, and provide for the first time evidence of a mycothiol-dependent mechanism of MtAhpE reduction. This is confirmed by crystallographic studies, wherein MtAhpE was crystallized in the presence of mycothiol and the structure was solved at 2.43Å resolution. Combined with NMR-studies, the crystallographic structures reveal conformational changes of important residues during the catalytic cycle of MtAhpE. In addition, alterations of the overall protein in solution due to redox modulation are observed by small angle X-ray scattering (SAXS) studies. Finally, by employing SAXS and dynamic light scattering, insight is provided into the most probable physiological oligomeric state of MtAhpE necessary for activity, being also discussed in the context of concerted substrate binding inside the dimeric MtAhpE.
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Affiliation(s)
- Arvind Kumar
- Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Republic of Singapore
| | - Asha Manikkoth Balakrishna
- Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Republic of Singapore
| | - Wilson Nartey
- Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Republic of Singapore
| | | | - Gerhard Grüber
- Nanyang Technological University, School of Biological Sciences, 60 Nanyang Drive, Singapore 637551, Republic of Singapore.
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41
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Ferruz N, Tresadern G, Pineda-Lucena A, De Fabritiis G. Multibody cofactor and substrate molecular recognition in the myo-inositol monophosphatase enzyme. Sci Rep 2016; 6:30275. [PMID: 27440438 PMCID: PMC4954947 DOI: 10.1038/srep30275] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 06/29/2016] [Indexed: 01/22/2023] Open
Abstract
Molecular recognition is rarely a two-body protein-ligand problem, as it often involves the dynamic interplay of multiple molecules that together control the binding process. Myo-inositol monophosphatase (IMPase), a drug target for bipolar disorder, depends on 3 Mg(2+) ions as cofactor for its catalytic activity. Although the crystallographic pose of the pre-catalytic complex is well characterized, the binding process by which substrate, cofactor and protein cooperate is essentially unknown. Here, we have characterized cofactor and substrate cooperative binding by means of large-scale molecular dynamics. Our study showed the first and second Mg(2+) ions identify the binding pocket with fast kinetics whereas the third ion presents a much higher energy barrier. Substrate binding can occur in cooperation with cofactor, or alone to a binary or ternary cofactor-IMPase complex, although the last scenario occurs several orders of magnitude faster. Our atomic description of the three-body mechanism offers a particularly challenging example of pathway reconstruction, and may prove particularly useful in realistic contexts where water, ions, cofactors or other entities cooperate and modulate the binding process.
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Affiliation(s)
- Noelia Ferruz
- Computational Biophysics Laboratory (GRIB-IMIM), Universitat Pompeu Fabra, Barcelona Biomedical Research Park (PRBB), Doctor Aiguader 88, 08003, Barcelona, Spain
- Acellera, Barcelona Biomedical Research Park, C Dr Aiguader 88, 08003, Barcelona, Spain
| | - Gary Tresadern
- Research Informatics, Janssen Research and Development, Janssen Cilag S A, Calle Jarama 75, Poligono Industrial, Toledo 45007, Spain
| | | | - Gianni De Fabritiis
- Computational Biophysics Laboratory (GRIB-IMIM), Universitat Pompeu Fabra, Barcelona Biomedical Research Park (PRBB), Doctor Aiguader 88, 08003, Barcelona, Spain
- Institució Catalana de Recerca i Estudis Avançats (ICREA), Passeig Lluis Companys 23, 08010 Barcelona, Spain
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Sözer EB, Wu YH, Romeo S, Vernier PT. Nanometer-Scale Permeabilization and Osmotic Swelling Induced by 5-ns Pulsed Electric Fields. J Membr Biol 2016; 250:21-30. [PMID: 27435216 DOI: 10.1007/s00232-016-9918-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Accepted: 07/11/2016] [Indexed: 11/25/2022]
Abstract
High-intensity nanosecond pulsed electric fields (nsPEFs) permeabilize cell membranes. Although progress has been made toward an understanding of the mechanism of nsPEF-induced membrane poration, the dependence of pore size and distribution on pulse duration, strength, number, and repetition rate remains poorly defined experimentally. In this paper, we characterize the size of nsPEF-induced pores in living cell membranes by isosmotically replacing the solutes in pulsing media with polyethylene glycols and sugars before exposing Jurkat T lymphoblasts to 5 ns, 10 MV/m electric pulses. Pore size was evaluated by analyzing cell volume changes resulting from the permeation of osmolytes through the plasma membrane. We find that pores created by 5 ns pulses have a diameter between 0.7 and 0.9 nm at pulse counts up to 100 with a repetition rate of 1 kHz. For larger number of pulses, either the pore diameter or the number of pores created, or both, increase with increasing pulse counts. But the prevention of cell swelling by PEG 1000 even after 2000 pulses suggests that 5 ns, 10 MV/m pulses cannot produce pores with a diameter larger than 1.9 nm.
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Affiliation(s)
- Esin B Sözer
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, 4211 Monarch Way. STE 300, Norfolk, VA, USA.
| | - Yu-Hsuan Wu
- Mork Family Department of Chemical Engineering and Materials Science, Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA
| | - Stefania Romeo
- CNR - Institute for Electromagnetic Sensing of the Environment (IREA), Via Diocleziano 328, 80124, Naples, Italy
| | - P Thomas Vernier
- Frank Reidy Research Center for Bioelectrics, Old Dominion University, 4211 Monarch Way. STE 300, Norfolk, VA, USA
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González-Mauraza NH, León-González AJ, Espartero JL, Gallego-Fernández JB, Sánchez-Hidalgo M, Martin-Cordero C. Isolation and Quantification of Pinitol, a Bioactive Cyclitol, in Retama spp. Nat Prod Commun 2016. [PMID: 27169192 DOI: 10.1177/1934578x1601100321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The genus Retama (Fabaceae) is widely distributed in the Mediterranean region. In the present study, pinitol (3-O-methyl-chiro-inositol), an anti-inflammatory and antidiabetic molecule, was isolated from aerial parts of R. monosperma, and its structure established on the basis of spectroscopic techniques (1D/2D NMR) and MS. Identification and quantification of pinitol in R. raetam and R. sphaerocarpa were also performed. R. monosperma had the highest concentration of pinitol (2.3%). The presence of pinitol in aqueous extracts of Retama spp. may explain the adaptation of these plants to drought and salinity. Furthermore, pinitol could be considered as a mediator in the anti-inflammatory and hypoglycemic activities of Retama spp., which are traditionally used to treat diabetes.
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Buré C, Cacas JL, Badoc A, Mongrand S, Schmitter JM. Branched glycosylated inositolphosphosphingolipid structures in plants revealed by MS(3) analysis. J Mass Spectrom 2016; 51:305-308. [PMID: 27041661 DOI: 10.1002/jms.3758] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 02/05/2016] [Accepted: 02/07/2016] [Indexed: 06/05/2023]
Affiliation(s)
- Corinne Buré
- Chimie Biologie des Membranes et Nanoobjets CBMN-UMR 5248 Centre de Génomique Fonctionnelle, Université Bordeaux Segalen, Université de Bordeaux, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France
| | - Jean-Luc Cacas
- UMR1318 INRA-AgroParisTech, Centre INRA de Versailles-Grignon, Institut Jean-Pierre Bourgin, Route de St. Cyr, 78026, Versailles Cedex, France
| | - Alain Badoc
- UFR de Pharmacie, Université Bordeaux Segalen ISVV, GESVAB-EA 3675, 210 Chemin de Leysotte, CS 50008, 33882 Villenave-d'Ornon; Jardin botanique de Talence, 3 avenue Espeleta, 33400, Talence, France
| | - Sébastien Mongrand
- Laboratoire de Biogenèse Membranaire, UMR 5200 CNRS-Université Bordeaux Segalen, Université de Bordeaux, 71, avenue Edouard Bourlaux, 33883, Villenave-d'Ornon Cedex, France
| | - Jean-Marie Schmitter
- Chimie Biologie des Membranes et Nanoobjets CBMN-UMR 5248 Centre de Génomique Fonctionnelle, Université Bordeaux Segalen, Université de Bordeaux, 146, rue Léo Saignat, 33076, Bordeaux Cedex, France
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Vučković I, Rapinoja ML, Vaismaa M, Vanninen P, Koskela H. Application of comprehensive NMR-based analysis strategy in annotation, isolation and structure elucidation of low molecular weight metabolites of Ricinus communis seeds. Phytochem Anal 2016; 27:64-72. [PMID: 26464348 DOI: 10.1002/pca.2600] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 09/06/2015] [Accepted: 09/13/2015] [Indexed: 06/05/2023]
Abstract
INTRODUCTION Powder-like extract of Ricinus communis seeds contain a toxic protein, ricin, which has a history of military, criminal and terroristic use. As the detection of ricin in this "terrorist powder" is difficult and time-consuming, related low mass metabolites have been suggested to be useful for screening as biomarkers of ricin. OBJECTIVE To apply a comprehensive NMR-based analysis strategy for annotation, isolation and structure elucidation of low molecular weight plant metabolites of Ricinus communis seeds. METHODOLOGY The seed extract was prepared with a well-known acetone extraction approach. The common metabolites were annotated from seed extract dissolved in acidic solution using (1)H NMR spectroscopy with spectrum library comparison and standard addition, whereas unconfirmed metabolites were identified using multi-step off-line HPLC-DAD-NMR approach. RESULTS In addition to the common plant metabolites, two previously unreported compounds, 1,3-digalactoinositol and ricinyl-alanine, were identified with support of MS analyses. CONCLUSION The applied comprehensive NMR-based analysis strategy provided identification of the prominent low molecular weight metabolites with high confidence.
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Affiliation(s)
- Ivan Vučković
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11158, Belgrade, Serbia
| | - Marja-Leena Rapinoja
- VERIFIN, Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014, Helsinki, Finland
| | - Matti Vaismaa
- VERIFIN, Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014, Helsinki, Finland
| | - Paula Vanninen
- VERIFIN, Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014, Helsinki, Finland
| | - Harri Koskela
- VERIFIN, Department of Chemistry, University of Helsinki, P.O. Box 55, FIN-00014, Helsinki, Finland
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Zhang J, Liu Y, Zhao C, Cao L, Huang Q, Wu Y. Enhanced Germicidal Efficacy by Co-Delivery of Validamycin and Hexaconazole with Methoxy Poly(ethylene glycol)-Poly(lactide-co-glycolide) Nanoparticles. J Nanosci Nanotechnol 2016; 16:152-159. [PMID: 27398440 DOI: 10.1166/jnn.2016.10674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Co-delivery system has been proposed in pharmaceutical field aim to synergistic treatments. The combination formulation is also important in traditional pesticides formulations based on the low pest resistance risk and wide fungicidal spectrum. However, co-delivery nanoparticles (NPs) tend to be more environmentally friendly for the sustained-release behaviour and none of toxic organic solvents or dusts. Hence, we constructed co-delivery NPs which could delivery two kinds of pesticides, which function was similar with pesticides combination formulation. The co-delivery NPs of validamycin and hexaconazole were prepared with the amphiphilic copolymer methoxy poly(ethylene glycol)- poly(lactide-co-glycolide) (mPEG-PLGA) used an improved double emulsion method. The chemical structure of mPEG-PLGA copolymer was confirmed using fourier transform infrared spectroscopy (FT-IR), and nuclear magnetic resonance spectroscopy (NMR). The co-delivery NPs all exhibited good size distribution and held sustained-release property. Germicidal efficacy of the co-delivery NPs against Rhizoctonia cerealis was also studied. The germicidal efficacy of co-delivery NPs against Rhizoctonia cerealis was better than that of traditional pesticides formulation. In addition, co-delivery NPs showed a lasting impact against Rhizoctonia cerealis.
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Crawford TJ, Crowther CA, Alsweiler J, Brown J. Antenatal dietary supplementation with myo-inositol in women during pregnancy for preventing gestational diabetes. Cochrane Database Syst Rev 2015; 2015:CD011507. [PMID: 26678256 PMCID: PMC6599829 DOI: 10.1002/14651858.cd011507.pub2] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Gestational diabetes, glucose intolerance with onset or first recognition during pregnancy, is a rising problem worldwide. Both non-pharmacological and pharmacological approaches to the prevention of gestational diabetes have been, and continue to be explored. Myo-inositol, an isomer of inositol, is a naturally occurring sugar commonly found in cereals, corn, legumes and meat. It is one of the intracellular mediators of the insulin signal and correlated with insulin sensitivity in type 2 diabetes. The potential beneficial effect on improving insulin sensitivity suggests that myo-inositol may be useful for women in preventing gestational diabetes. OBJECTIVES To assess if antenatal dietary supplementation with myo-inositol is safe and effective, for the mother and fetus, in preventing gestational diabetes. SEARCH METHODS We searched the Pregnancy and Childbirth Group's Trials Register, ClinicalTrials.gov, WHO ICTRP (2 November 2015) and reference lists of retrieved studies. SELECTION CRITERIA We sought published and unpublished randomised controlled trials, including conference abstracts, assessing the effects of myo-inositol for the prevention of gestational diabetes mellitus (GDM). Quasi-randomised and cross-over trials were not eligible for inclusion, but cluster designs were eligible. Participants in the trials were pregnant women. Women with pre-existing type 1 or type 2 diabetes were excluded. Trials that compared the administration of any dose of myo-inositol, alone or in a combination preparation were eligible for inclusion. Trials that used no treatment, placebo or another intervention as the comparator were eligible for inclusion. DATA COLLECTION AND ANALYSIS Two review authors independently assessed trials for inclusion, risk of bias and extracted the data. Data were checked for accuracy. MAIN RESULTS We included four randomised controlled trials (all conducted in Italy) reporting on 567 women who were less than 11 weeks' to 24 weeks' pregnant at the start of the trials. The trials had small sample sizes and one trial only reported an interim analysis. Two trials were open-label. The overall risk of bias was unclear.For the mother, supplementation with myo-inositol was associated with a reduction in the incidence of gestational diabetes compared with control (risk ratio (RR) 0.43, 95% confidence interval (CI) 0.29 to 0.64; three trials; n = 502 women). Using GRADE methods this evidence was assessed as low with downgrading due to unclear risk of bias for allocation concealment in two of the included trials and lack of generalisability of findings. For women who received myo-inositol supplementation, the incidence of GDM ranged from 8% to 18%; for women in the control group, the incidence of GDM was 28%, using International Association of Diabetes and Pregnancy Study Groups Consensus Panel 2010 criteria to diagnose GDM.Two trials reported on hypertensive disorders of pregnancy, a primary maternal outcome of this review. There was no clear difference in risk of hypertensive disorders of pregnancy between the myo-inositol and control groups (average RR 0.43, 95% CI 0.02 to 8.41; two trials; n = 398 women; Tau(2) = 3.23; I(2) = 69%). Using GRADE methods, this evidence was assessed as very low, with downgrading due to wide confidence intervals with very low event rates, a small sample size, and lack of blinding and unclear allocation concealment methods, and a lack of generalisability. For women who received myo-inositol the risk of hypertensive disorders of pregnancy ranged from 0% to 33%; for women in the control group the risk was 4%.For the infant, none of the included trials reported on the primary neonatal outcomes of this systematic review (large-for-gestational age, perinatal mortality, mortality or morbidity composite).In terms of this review's secondary outcomes, there was no clear difference in the risk of caesarean section between the myo-inositol and control groups (RR 0.95, 95% CI 0.76 to 1.19; two trials; n = 398 women). Using GRADE methods, this evidence was assessed as low, with downgrading due to unclear risk of bias in one trial and lack of generalisability. For women who received myo-inositol supplementation, the risk of having a caesarean section ranged from 34% to 54%; for women in the control group the was 45%. There were no maternal adverse effects of therapy in the two trials that reported on this outcome (the other two trials did not report this outcome).Two trials found no clear difference in the risk of macrosomia between infants whose mothers received myo-inositol supplementation compared with controls (average RR 0.35, 95% CI 0.02 to 6.37; two trials; n = 398 infants;Tau(2) = 3.33; I(2) = 73%). Similarly, there was no clear difference between groups in terms of neonatal hypoglycaemia (RR 0.36, 95% CI 0.01 to 8.66) or shoulder dystocia (average RR 2.33, 95% CI 0.12 to 44.30, Tau(2) = 3.24; I(2) = 72%).There was a lack of data available for a large number of maternal and neonatal secondary outcomes, and no data for any of the long-term childhood or adulthood outcomes, or for health service cost outcomes. AUTHORS' CONCLUSIONS Evidence from four trials of antenatal dietary supplementation with myo-inositol during pregnancy shows a potential benefit for reducing the incidence of gestational diabetes. No data were reported for any of this review's primary neonatal outcomes. There were very little outcome data for the majority of this review's secondary outcomes. There is no clear evidence of a difference for macrosomia when compared with control.The current evidence is based on small trials that are not powered to detect differences in outcomes including perinatal mortality and serious infant morbidity. All of the included studies were conducted in Italy which raises concerns about the lack of generalisability of the evidence to other settings. There is evidence of inconsistency and indirectness and as a result, many of the judgements on the quality of the evidence were downgraded to low or very low quality (GRADEpro Guideline Development Tool).Further trials for this promising antenatal intervention for preventing gestational diabetes are encouraged and should include pregnant women of different ethnicities and varying risk factors and use of myo-inositol (different doses, frequency and timing of administration) in comparison with placebo, diet and exercise or pharmacological interventions. Outcomes should include potential harms including adverse effects.
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Affiliation(s)
- Tineke J Crawford
- The University of AucklandLiggins Institute85 Park RoadGraftonAucklandNew Zealand1023
| | - Caroline A Crowther
- The University of AucklandLiggins Institute85 Park RoadGraftonAucklandNew Zealand1023
- The University of AdelaideARCH: Australian Research Centre for Health of Women and Babies, Robinson Research Institute, Discipline of Obstetrics and GynaecologyWomen's and Children's Hospital72 King William RoadAdelaideSouth AustraliaAustralia5006
| | - Jane Alsweiler
- Auckland HospitalNeonatal Intensive Care UnitPark Rd.AucklandNew Zealand
| | - Julie Brown
- The University of AucklandLiggins Institute85 Park RoadGraftonAucklandNew Zealand1023
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Park S, Hwang IW, Kim JS, Kang HC, Park SY, Gil HW, Song HY, Hong SY. The effects of nonyl phenoxypolyethoxyl ethanol on cell damage pathway gene expression in SK-NSH cells. Korean J Intern Med 2015; 30:873-83. [PMID: 26552463 PMCID: PMC4642017 DOI: 10.3904/kjim.2015.30.6.873] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 11/24/2014] [Accepted: 02/13/2015] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND/AIMS Most pesticide formulations contain both chief and additive ingredients. But, the additives may not have been tested as thoroughly as the chief ingredients. The surfactant, nonyl phenoxypolyethoxylethanol (NP40), is an additive frequently present in pesticide formulations. We investigated the effects of NP40 and other constituents of a validamycin pesticide formulation on cell viability and on the expression of genes involved in cell damage pathways. METHODS The effects of validamycin pesticide ingredients on cell viability and of NP40 on the mRNA expression of 80 genes involved in nine key cellular pathways were examined in the human neuroblastoma SK-N-SH cell line. RESULTS The chemicals present in the validamycin pesticide formulation were cytotoxic to SK-N-SH cells and NP40 showed the greatest cytotoxicity. A range of gene expression changes were identified, with both up- and down-regulation of genes within the same pathway. However, all genes tested in the necrosis signaling pathway were down-regulated and all genes tested in the cell cycle checkpoint/arrest pathway were up-regulated. The median fold-change in gene expression was significantly higher in the cell cycle checkpoint/arrest pathway than in the hypoxia pathway category (p = 0.0064). The 70 kDa heat shock protein 4 gene, within the heat shock protein/unfolded protein response category, showed the highest individual increase in expression (26.1-fold). CONCLUSIONS NP40 appeared to be particularly harmful, inducing gene expression changes that indicated genotoxicity, activation of the cell death (necrosis signaling) pathway, and induction of the 70 kDa heat shock protein 4 gene.
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Affiliation(s)
- Samel Park
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Il-woong Hwang
- Pesticide Intoxication Institute, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Jin-sheon Kim
- Pesticide Intoxication Institute, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Hyo-chul Kang
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Su-Yeon Park
- Biostatistical Consulting Unit, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Hyo-wook Gil
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Ho-yeon Song
- Department of Microbiology, Soonchunhyang University College of Medicine, Cheonan, Korea
| | - Sae-yong Hong
- Department of Internal Medicine, Soonchunhyang University College of Medicine, Cheonan, Korea
- Correspondence to Sae-yong Hong, M.D. Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, 31 Suncheonhyang 6-gil, Dongnam-gu, Cheonan 31151, Korea Tel: +82-41-570-3682 Fax: +82-41-574-5762 E-mail:
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Rinne KT, Saurer M, Kirdyanov AV, Bryukhanova MV, Prokushkin AS, Churakova Sidorova OV, Siegwolf RTW. Examining the response of needle carbohydrates from Siberian larch trees to climate using compound-specific δ(13) C and concentration analyses. Plant Cell Environ 2015; 38:2340-2352. [PMID: 25916312 DOI: 10.1111/pce.12554] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/17/2015] [Accepted: 04/06/2015] [Indexed: 06/04/2023]
Abstract
Little is known about the dynamics of concentrations and carbon isotope ratios of individual carbohydrates in leaves in response to climatic and physiological factors. Improved knowledge of the isotopic ratio in sugars will enhance our understanding of the tree ring isotope ratio and will help to decipher environmental conditions in retrospect more reliably. Carbohydrate samples from larch (Larix gmelinii) needles of two sites in the continuous permafrost zone of Siberia with differing growth conditions were analysed with the Compound-Specific Isotope Analysis (CSIA). We compared concentrations and carbon isotope values (δ(13) C) of sucrose, fructose, glucose and pinitol combined with phenological data. The results for the variability of the needle carbohydrates show high dynamics with distinct seasonal characteristics between and within the studied years with a clear link to the climatic conditions, particularly vapour pressure deficit. Compound-specific differences in δ(13) C values as a response to climate were detected. The δ(13) C of pinitol, which contributes up to 50% of total soluble carbohydrates, was almost invariant during the whole growing season. Our study provides the first in-depth characterization of compound-specific needle carbohydrate isotope variability, identifies involved mechanisms and shows the potential of such results for linking tree physiological responses to different climatic conditions.
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Affiliation(s)
- K T Rinne
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), CH-5232, Villigen, Switzerland
| | - M Saurer
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), CH-5232, Villigen, Switzerland
| | - A V Kirdyanov
- V.N. Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, 660036, Russia
| | - M V Bryukhanova
- V.N. Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, 660036, Russia
| | - A S Prokushkin
- V.N. Sukachev Institute of Forest SB RAS, Akademgorodok, Krasnoyarsk, 660036, Russia
| | | | - R T W Siegwolf
- Laboratory of Atmospheric Chemistry, Paul Scherrer Institute (PSI), CH-5232, Villigen, Switzerland
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Abstract
Twelve new inositol derivatives, classified into myoinositol (1-6) and l-inositol (10-15) types, along with five known analogues were isolated from the whole plant of Inula cappa. The structures of the new compounds were established by extensive analysis of mass spectrometric and 1D and 2D NMR spectroscopic data. All the tested compounds showed anti-inflammatory activities against the production of NO in RAW264.7 macrophages stimulated by lipopolysaccharide, with IC50 values ranging from 7 to 23 μM.
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Affiliation(s)
- Jiewei Wu
- Joint Research Laboratory for Promoting Globalization of Traditional Chinese Medicines between Shanghai Institute of Materia Medica, Chinese Academy of Sciences and The Chinese University of Hong Kong , Hong Kong, People's Republic of China
| | - Chunping Tang
- Joint Research Laboratory for Promoting Globalization of Traditional Chinese Medicines between Shanghai Institute of Materia Medica, Chinese Academy of Sciences and The Chinese University of Hong Kong , Hong Kong, People's Republic of China
| | - Sheng Yao
- Joint Research Laboratory for Promoting Globalization of Traditional Chinese Medicines between Shanghai Institute of Materia Medica, Chinese Academy of Sciences and The Chinese University of Hong Kong , Hong Kong, People's Republic of China
| | | | - Changqiang Ke
- Joint Research Laboratory for Promoting Globalization of Traditional Chinese Medicines between Shanghai Institute of Materia Medica, Chinese Academy of Sciences and The Chinese University of Hong Kong , Hong Kong, People's Republic of China
| | | | - Ge Lin
- Joint Research Laboratory for Promoting Globalization of Traditional Chinese Medicines between Shanghai Institute of Materia Medica, Chinese Academy of Sciences and The Chinese University of Hong Kong , Hong Kong, People's Republic of China
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong , Shatin, NT, Hong Kong, SAR, People's Republic of China
| | - Yang Ye
- Joint Research Laboratory for Promoting Globalization of Traditional Chinese Medicines between Shanghai Institute of Materia Medica, Chinese Academy of Sciences and The Chinese University of Hong Kong , Hong Kong, People's Republic of China
- School of Life Science and Technology, ShanghaiTech University , Shanghai 201203, People's Republic of China
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