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Abo Qoura L, Morozova E, Ramaa СS, Pokrovsky VS. Smart nanocarriers for enzyme-activated prodrug therapy. J Drug Target 2024:1-23. [PMID: 39045650 DOI: 10.1080/1061186x.2024.2383688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Revised: 06/26/2024] [Accepted: 07/17/2024] [Indexed: 07/25/2024]
Abstract
Exogenous enzyme-activated prodrug therapy (EPT) is a potential cancer treatment strategy that delivers non-human enzymes into or on the surface of the cell and subsequently converts a non-toxic prodrug into an active cytotoxic substance at a specific location and time. The development of several pharmacological pairs based on EPT has been the focus of anticancer research for more than three decades. Numerous of these pharmacological pairs have progressed to clinical trials, and a few have achieved application in specific cancer therapies. The current review highlights the potential of enzyme-activated prodrug therapy as a promising anticancer treatment. Different microbial, plant, or viral enzymes and their corresponding prodrugs that advanced to clinical trials have been listed. Additionally, we discuss new trends in the field of enzyme-activated prodrug nanocarriers, including nanobubbles combined with ultrasound (NB/US), mesoscopic-sized polyion complex vesicles (PICsomes), nanoparticles, and extracellular vesicles (EVs), with special emphasis on smart stimuli-triggered drug release, hybrid nanocarriers, and the main application of nanotechnology in improving prodrugs.
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Affiliation(s)
- Louay Abo Qoura
- Research Institute of Molecular and Cellular Medicine, People's Friendship University of Russia (RUDN University), Moscow, Russia
- Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Elena Morozova
- Engelhardt Institute of Molecular Biology of the, Russian Academy of Sciences, Moscow, Russia
| | - С S Ramaa
- Department of Pharmaceutical Chemistry, Bharati Vidyapeeth's College of Pharmacy, Mumbai, India
| | - Vadim S Pokrovsky
- Research Institute of Molecular and Cellular Medicine, People's Friendship University of Russia (RUDN University), Moscow, Russia
- Blokhin National Medical Research Center of Oncology, Ministry of Health of the Russian Federation, Moscow, Russia
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2
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Mizutani T, Hara R, Takeuchi M, Hibi M, Ueda M, Ogawa J. One-Pot Synthesis of Useful S-Substituted-l-cysteine Sulfoxides Using Genetically Engineered Escherichia coli. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:5339-5347. [PMID: 38417143 DOI: 10.1021/acs.jafc.3c08824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
S-Substituted-l-cysteine sulfoxides are valuable compounds that are contained in plants. Particularly, (+)-alliin and its degraded products have gained significant attention because of their human health benefits. However, (+)-alliin production has been limited to extraction from plants and chemical synthesis; both methods have drawbacks in terms of stability and safety. Here, we proposed the enzymatic cascade reaction for synthesizing (+)-alliin from readily available substrates. To achieve a one-pot (+)-alliin production, we constructed Escherichia coli coexpressing the genes encoding tryptophan synthase from Aeromonas hydrophila ssp. hydrophila NBRC 3820 and l-isoleucine hydroxylase from Bacillus thuringiensis 2e2 for the biocatalyst. Deletion of tryptophanase gene in E. coli increased the yield about 2-fold. Under optimized conditions, (+)-alliin accumulation reached 110 mM, which is the highest productivity thus far. Moreover, natural and unnatural S-substituted-l-cysteine sulfoxides were synthesized by applying various thiols to the cascade reaction. These results indicate that the developed bioprocess would enable the supply of diverse S-substituted-l-cysteine sulfoxides.
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Affiliation(s)
- Taku Mizutani
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Ryotaro Hara
- Laboratory of Industrial Microbiology, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Michiki Takeuchi
- Laboratory of Industrial Microbiology, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
| | - Makoto Hibi
- Biotechnology Research Center and Department of Biotechnology, Toyama Prefectural University, Toyama 939-0398, Japan
| | - Makoto Ueda
- Laboratory of Industrial Microbiology, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
- Department of Materials Chemistry and Bioengineering, National Institute of Technology, Oyama College, 771 Nakakuki, Oyama, Tochigi 323-0806, Japan
| | - Jun Ogawa
- Division of Applied Life Sciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
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Kulikova VV, Morozova EA, Koval VS, Solyev PN, Demidkina TV, Revtovich SV. Thiosulfinates: Cytotoxic and Antitumor Activity. BIOCHEMISTRY. BIOKHIMIIA 2023; 88:912-923. [PMID: 37751863 DOI: 10.1134/s0006297923070052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/12/2023] [Accepted: 05/12/2023] [Indexed: 09/28/2023]
Abstract
Pharmacological value of some natural compounds makes them attractive for use in oncology. The sulfur-containing thiosulfinates found in plants of the genus Allium have long been known as compounds with various therapeutic properties, including antitumor. Over the last few years, the effect of thiosulfinates on various stages of carcinogenesis has been actively investigated. In vitro and in vivo studies have shown that thiosulfinates inhibit proliferation of cancer cells, as well as they induce apoptosis. The purpose of this review is to summarize current data on the use of natural and synthetic thiosulfinates in cancer therapy. Antitumor mechanisms and molecular targets of these promising compounds are discussed. A significant part of the review is devoted to consideration of a new strategy for treatment of oncological diseases - use of the directed enzyme prodrug therapy approach aiming to obtain antitumor thiosulfinates in situ.
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Affiliation(s)
- Vitalia V Kulikova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia.
| | - Elena A Morozova
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Vasiliy S Koval
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Pavel N Solyev
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Tatyana V Demidkina
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
| | - Svetlana V Revtovich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991, Russia
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Hashemy SI, Amiri H, Hosseini H, Sadeghzadeh F, Jaseem MMM, Tabrizi MH. PEGylated Lecithin-Chitosan-Folic Acid Nanoparticles as Nanocarriers of Allicin for In Vitro Controlled Release and Anticancer Effects. Appl Biochem Biotechnol 2023:10.1007/s12010-022-04310-y. [PMID: 36652093 DOI: 10.1007/s12010-022-04310-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/28/2022] [Indexed: 01/19/2023]
Abstract
In this study, chitosan-lecithin nanoparticles modified with polyethylene glycol (PEG) and folic acid (FA) were used to deliver allicin (AC) to colon cancer cells. AC-loaded polyethylene glycol (PEG) and folic acid (FA)-modified chitosan-lecithin nanoparticles (AC-PLCF-NPs) were fabricated via self-assembling procedure. HPLC for AC encapsulation and FA binding, MTT for viability assay, ABTS and DPPH for antioxidant capacity, disc diffusion, MIC and MBC for antibacterial assay, qPCR and AO/PI staining for apoptotic, and CAM assay for angiogenesis effects of AC-PLCF-NPs were used. AC-PLCF-NPs (113.55 nm) were synthesized as single dispersed (PDI: 0.28) and stable (ZP: + 33.18 mV) with 81% AC encapsulation and 48% FA binding. The antioxidant power of AC-PLCF-NPs was confirmed by inhibiting free radicals ABTS (74.25 µg/mL) and DPPH (366.214 µg/mL) and its antibacterial capacity with very high inhibitory effects against gram-negative bacterial strains. MTT results showed higher toxicity of AC-PLCF-NPs (68.06 µg/mL) compared to AC (171.45 µg/mL). Increased expression of caspase 3 and 9 genes showed activation of the intrinsic apoptosis pathway in treated cells, and on the other hand, reduction of vascular and embryonic growth factors in CAM model confirmed the anti-angiogenesis effects of AC-PLCF-NPs. AC-PLCF-NPs can be suggested as a promising therapeutic agent for studies in the field of colon cancer treatment.
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Affiliation(s)
- Seyed Isaac Hashemy
- Faculty of Medicine, Department of Clinical Biochemistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamed Amiri
- Faculty of Medicine, Department of Clinical Biochemistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hossein Hosseini
- Faculty of Medicine, Department of Clinical Biochemistry, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farzaneh Sadeghzadeh
- Department of Biochemistry, Neyshabur Branch, Islamic Azad University, Neyshabur, Iran
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Yoshimoto N, Saito K. S-Alk(en)ylcysteine sulfoxides in the genus Allium: proposed biosynthesis, chemical conversion, and bioactivities. JOURNAL OF EXPERIMENTAL BOTANY 2019; 70:4123-4137. [PMID: 31106832 DOI: 10.1093/jxb/erz243] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Accepted: 05/14/2019] [Indexed: 06/09/2023]
Abstract
S-Alk(en)ylcysteine sulfoxides are sulfur-containing natural products characteristic of the genus Allium. Both the flavor and medicinal properties of Allium plants are attributed to a wide variety of sulfur-containing compounds that are generated from S-alk(en)ylcysteine sulfoxides. Previous radiotracer experiments proposed that S-alk(en)ylcysteine sulfoxides are biosynthesized from glutathione. The recent identification of γ-glutamyl transpeptidases and a flavin-containing S-oxygenase involved in the biosynthesis of S-allylcysteine sulfoxide (alliin) in garlic (Allium sativum) provided insights into the reaction order of deglutamylation and S-oxygenation together with the localization of the biosynthesis, although the rest of the enzymes in the pathway still await discovery. In intact plants, S-alk(en)ylcysteine sulfoxides are stored in the cytosol of storage mesophyll cells. During tissue damage, the vacuolar enzyme alliinase contacts and hydrolyzes S-alk(en)ylcysteine sulfoxides to produce the corresponding sulfenic acids, which are further converted into various sulfur-containing bioactive compounds mainly via spontaneous reactions. The formed sulfur-containing compounds exhibit bioactivities related to pathogen defense, the prevention and alleviation of cancer and cardiovascular diseases, and neuroprotection. This review summarizes the current understanding of the occurrence, biosynthesis, and alliinase-triggered chemical conversion of S-alk(en)ylcysteine sulfoxides in Allium plants as well as the impact of S-alk(en)ylcysteine sulfoxides and their derivatives on medicinal, food, and agricultural sciences.
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Affiliation(s)
- Naoko Yoshimoto
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, Japan
| | - Kazuki Saito
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, Japan
- RIKEN Center for Sustainable Resource Science, 1-7-22 Suehiro-cho, Tsurumi-ku, Yokohama, Japan
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Jiang Q, Tian J, Liu G, Yin Y, Yao K. Endoplasmic Reticulum Stress and Unfolded Protein Response Pathways Involved in the Health-Promoting Effects of Allicin on the Jejunum. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:6019-6031. [PMID: 31067048 DOI: 10.1021/acs.jafc.9b02180] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Intestinal endoplasmic reticulum stress (ERS) triggered by adverse factors disturbs the normal function of the intestine. Allicin has been reported to promote intestinal health and development. In the present study, we established in vivo (35-day-old weaned piglets, 4-week-old mice) and in vitro (IPEC-J2 cell line) ERS models to explore the possible mechanisms by which allicin may benefit intestinal health. This study revealed the following: (1) allicin supplementation improved intestinal morphological indices and ameliorated mild ERS in the jejunum of the weaned piglets; (2) allicin supplementation decreased cellular reactive oxygen species and upregulated the XBP-1s signaling pathways in IPEC-J2 cells; (3) allicin supplementation reduced the prolonged ERS-mediated apoptosis of IPEC-J2 cells and in the jejunal tissues of the KM mice; (4) allicin supplementation enhanced the intercellular junction protein levels of jejunal cells by alleviating the prolonged ERS. These novel findings suggest that eating garlic could alleviate some intestinal malfunctions associated with ERS.
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Affiliation(s)
- Qian Jiang
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
- University of Chinese Academy of Sciences , Beijing 100043 , P.R. China
- Department of Animal Science , University of Manitoba , Winnipeg , MB R3T 2N2 , Canada
| | - Junquan Tian
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Gang Liu
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Yulong Yin
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
| | - Kang Yao
- Laboratory of Animal Nutritional Physiology and Metabolic Process , Institute of Subtropical Agriculture Chinese Academy of Sciences , Changsha , Hunan 410125 , P.R. China
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Petropoulos S, Di Gioia F, Ntatsi G. Vegetable Organosulfur Compounds and their Health Promoting Effects. Curr Pharm Des 2017; 23:2850-2875. [DOI: 10.2174/1381612823666170111100531] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Accepted: 01/03/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Spyridon Petropoulos
- University of Thessaly, School of Agricultural Sciences, Fytokou Street, 38446, N. Ionia, Magnissia, Greece
| | - Francesco Di Gioia
- Institute of Food and Agricultural Sciences, South West Florida Research and Education Center, University of Florida, Immokalee, Florida
| | - Georgia Ntatsi
- Faculty of Crop Science, Agricultural University of Athens, Athens, Greece
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Albrecht F, Leontiev R, Jacob C, Slusarenko AJ. An Optimized Facile Procedure to Synthesize and Purify Allicin. Molecules 2017; 22:molecules22050770. [PMID: 28489057 PMCID: PMC6154629 DOI: 10.3390/molecules22050770] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/28/2017] [Accepted: 05/05/2017] [Indexed: 11/16/2022] Open
Abstract
Allicin is a reactive sulfur species (RSS) and defence substance from garlic (Allium sativum L.). The compound is a broad-spectrum antibiotic that is also effective against multiple drug resistant (MDR) strains. A detailed protocol for allicin synthesis based on diallyl-disulfide (DADS) oxidation by H2O2 using acetic acid as a catalyst was published in 2001 by Lawson and Wang. Here we report on improvements to this basic method, clarify the mechanism of the reaction and show that it is zero-order with respect to DADS and first-order with respect to the concentration of H2O2. The progress of allicin synthesis and the reaction mechanism were analyzsd by high-performance liquid chromatography (HPLC) and the identity and purity of the products was verified with LC-MS and 1H-NMR. We were able to obtain allicin of high purity (>98%) and >91% yield, with standard equipment available in any reasonable biological laboratory. This protocol will enable researchers to prepare and work with easily and cheaply prepared allicin of high quality.
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Affiliation(s)
- Frank Albrecht
- Department of Plant Physiology, RWTH Aachen University, D-52056 Aachen, Germany.
| | - Roman Leontiev
- Department of Plant Physiology, RWTH Aachen University, D-52056 Aachen, Germany.
- Division of Bioorganic Chemistry, School of Pharmacy, Campus B2 1, University of Saarland, D-66123 Saarbruecken, Saarland, Germany.
| | - Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Campus B2 1, University of Saarland, D-66123 Saarbruecken, Saarland, Germany.
| | - Alan J Slusarenko
- Department of Plant Physiology, RWTH Aachen University, D-52056 Aachen, Germany.
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Gruhlke MCH, Nicco C, Batteux F, Slusarenko AJ. The Effects of Allicin, a Reactive Sulfur Species from Garlic, on a Selection of Mammalian Cell Lines. Antioxidants (Basel) 2016; 6:antiox6010001. [PMID: 28035949 PMCID: PMC5384165 DOI: 10.3390/antiox6010001] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 11/29/2016] [Accepted: 12/19/2016] [Indexed: 01/19/2023] Open
Abstract
Garlic (Allium sativum L.) has been used as a spice and medicinal plant since ancient times. Garlic produces the thiol-reactive defence substance, allicin, upon wounding. The effects of allicin on human lung epithelium carcinoma (A549), mouse fibroblast (3T3), human umbilical vein endothelial cell (HUVEC), human colon carcinoma (HT29) and human breast cancer (MCF7) cell lines were tested. To estimate toxic effects of allicin, we used a standard MTT-test (methylthiazoltetrazolium) for cell viability and ³H-thymidine incorporation for cell proliferation. The glutathione pool was measured using monobromobimane and the formation of reactive species was identified using 2',7'-dichlorofluoresceine-diacetate. The YO-PRO-1 iodide staining procedure was used to estimate apoptosis. Allicin reduced cell viability and cell proliferation in a concentration dependent manner. In the bimane test, it was observed that cells treated with allicin showed reduced fluorescence, suggesting glutathione oxidation. The cell lines tested differed in sensitivity to allicin in regard to viability, cell proliferation and glutathione oxidation. The 3T3 and MCF-7 cells showed a higher proportion of apoptosis compared to the other cell types. These data show that mammalian cell lines differ in their sensitivity and responses to allicin.
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Affiliation(s)
- Martin C H Gruhlke
- Department of Plant Physiology, RWTH Aachen University, Worringer Weg 1, Aachen 52074, Germany.
| | - Carole Nicco
- Laboratoire d'Immunologie biologique, Hôpital Cochin, Paris 75679, France.
| | - Frederic Batteux
- Laboratoire d'Immunologie biologique, Hôpital Cochin, Paris 75679, France.
| | - Alan J Slusarenko
- Department of Plant Physiology, RWTH Aachen University, Worringer Weg 1, Aachen 52074, Germany.
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Estevam EC, Griffin S, Nasim MJ, Zieliński D, Aszyk J, Osowicka M, Dawidowska N, Idroes R, Bartoszek A, Jacob C. Inspired by Nature: The use of Plant-derived Substrate/Enzyme Combinations to Generate Antimicrobial Activity in situ. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001025] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
The last decade has witnessed a renewed interest in antimicrobial agents. Plants have received particular attention and frequently rely on the spontaneous enzymatic conversion of an inactive precursor to an active agent. Such two-component substrate/enzyme defence systems can be reconstituted ex vivo. Here, the alliin/alliinase system from garlic seems to be rather effective against Saccharomyces cerevisiae, whilst the glucosinolate/myrosinase system from mustard appears to be more active against certain bacteria. Studies with myrosinase also confirm that enzyme and substrate can be added sequentially. Ultimately, such binary systems hold considerable promise and may be employed in a medical or agricultural context.
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Affiliation(s)
| | - Sharoon Griffin
- Bioorganic Chemistry, Department of Pharmacy, Saarland University, Saarbruecken, Saarland, Germany
| | - Muhammad Jawad Nasim
- Bioorganic Chemistry, Department of Pharmacy, Saarland University, Saarbruecken, Saarland, Germany
| | - Dariusz Zieliński
- Department of Food Chemistry, Technology and Biotechnology, Chemical Faculty, Gdansk University of Technology, Gdansk, Poland
| | - Justyna Aszyk
- Department of Food Chemistry, Technology and Biotechnology, Chemical Faculty, Gdansk University of Technology, Gdansk, Poland
| | - Magdalena Osowicka
- Department of Food Chemistry, Technology and Biotechnology, Chemical Faculty, Gdansk University of Technology, Gdansk, Poland
| | - Natalia Dawidowska
- Department of Food Chemistry, Technology and Biotechnology, Chemical Faculty, Gdansk University of Technology, Gdansk, Poland
| | - Rinaldi Idroes
- Pharmacy Department, Chemistry Department, Syiah Kuala University, Banda Aceh, Indonesia
| | - Agnieszka Bartoszek
- Department of Food Chemistry, Technology and Biotechnology, Chemical Faculty, Gdansk University of Technology, Gdansk, Poland
| | - Claus Jacob
- Bioorganic Chemistry, Department of Pharmacy, Saarland University, Saarbruecken, Saarland, Germany
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Jacob C, Anwar A. The chemistry behind redox regulation with a focus on sulphur redox systems. PHYSIOLOGIA PLANTARUM 2008; 133:469-80. [PMID: 18346080 DOI: 10.1111/j.1399-3054.2008.01080.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Sulphur metabolism in plants provides a wealth of natural products, including several chemically unusual substances, such as thiosulphinates, polysulphides and isothiocyanates. Many of these reactive sulphur species (RSS) exhibit a distinct redox behaviour in vitro, which translates into a rather interesting biological activity in vivo, such as antibiotic, fungicidal, pesticidal or anticancer activity. While the molecular basis for such activity has long remained obscure, research into sulphur-based redox systems during the past 5-10 years has achieved a better knowledge of the in vitro properties of RSS and has led to an improved understanding of their impact on intracellular redox signalling and control pathways in living cells. It has become apparent that the redox chameleon sulphur occurs in biological systems in about 10 different oxidation states, which give rise to an extensive and complicated network of sulphur-based redox events. Together, natural sulphur products from plants and their intracellular targets provide the basis for innovative design of novel antibiotics, fungicides, pesticides and anticancer agents.
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Affiliation(s)
- Claus Jacob
- Division of Bioorganic Chemistry, School of Pharmacy, Universitaet des Saarlandes, Campus B 2.1, PO Box 151150, D-66123 Saarbruecken, Germany.
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Fujisawa H, Suma K, Origuchi K, Kumagai H, Seki T, Ariga T. Biological and chemical stability of garlic-derived allicin. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:4229-4235. [PMID: 18489116 DOI: 10.1021/jf8000907] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
This study verifies the instability of garlic ( Allium sativum L.)-derived allyl 2-propenylthiosulfinate (allicin) in various aqueous and ethanolic solutions as well as in vegetable oil through chemical and biological analyses performed simultaneously. Crushed fresh garlic cloves generated antibacterial activity and chemically detectable allicin, a major antibacterial principle, and both declined on a daily basis in aqueous and ethanolic solutions at room temperature, showing biological and chemical half-lives of about 6 and 11 days, respectively. Allicin was more stable in 20% alcohol than in water, but surprisingly unstable in vegetable oil, with an activity half-life 0.8 h, as estimated from its antibacterial activity toward Escherichia coli, and a chemical half-life of 3.1 h, based on chromatographic quantification. In alcoholic and aqueous extracts, the biological half-life of allicin tended to be longer than the chemical one, suggesting the occurrence of bioactive compounds other than allicin in the extracts.
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Affiliation(s)
- Hiroyuki Fujisawa
- Nihon University Graduate School of Applied Life Sciences, Fujisawa, Japan
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