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Kurochkina L, Pozdyshev D, Kusaykin M, Barinova K, Ermakova S, Semenyuk P. Sulfated polysaccharides accelerate gliadin digestion and reduce its toxicity. Biochem Biophys Res Commun 2024; 695:149439. [PMID: 38160531 DOI: 10.1016/j.bbrc.2023.149439] [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] [Received: 11/30/2023] [Accepted: 12/23/2023] [Indexed: 01/03/2024]
Abstract
Celiac disease and other types of gluten intolerance significantly affect the life quality of patients making them restrict the diet removing all food produced from wheat, rye, oat, and barley flour, and some other products. These disorders arise from protease resistance of poorly soluble proteins prolamins, contained in gluten. Enhanced proteolytic digestion of gliadins might be considered as a prospective approach for the treatment of celiac disease and other types of gluten intolerance. Herein, we tested a range of sulfated polymers (kappa-carrageenan, dextran sulfate and different polysaccharides from brown seaweeds, and a synthetic polystyrene sulfonate) for the ability to activate gliadin digestion by human digestive proteases, pepsin and trypsin. Sulfated polysaccharide from Fucus evanescens enhanced proteolytic digestion of gliadins from wheat flour and reduced its cytotoxicity on intestinal epithelial Caco-2 cell culture. Regarding the non-toxic nature of fucoidans, the results provide a basis for polymer-based drugs or additives for the symptomatic treatment of gluten intolerance.
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Affiliation(s)
- Lidia Kurochkina
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Denis Pozdyshev
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Mikhail Kusaykin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Ksenia Barinova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Svetlana Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Pavel Semenyuk
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.
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Bakunina I, Imbs T, Likhatskaya G, Grigorchuk V, Zueva A, Malyarenko O, Ermakova S. Effect of Phlorotannins from Brown Algae Costaria costata on α- N-Acetylgalactosaminidase Produced by Duodenal Adenocarcinoma and Melanoma Cells. Mar Drugs 2022; 21:33. [PMID: 36662206 PMCID: PMC9860849 DOI: 10.3390/md21010033] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 01/03/2023] Open
Abstract
The inhibitor of human α-N-acetylgalactosaminidase (α-NaGalase) was isolated from a water-ethanol extract of the brown algae Costaria costata. Currently, tumor α-NaGalase is considered to be a therapeutic target in the treatment of cancer. According to NMR spectroscopy and mass spectrometric analysis, it is a high-molecular-weight fraction of phlorethols with a degree of polymerization (DP) equaling 11-23 phloroglucinols (CcPh). It was shown that CcPh is a direct inhibitor of α-NaGalases isolated from HuTu 80 and SK-MEL-28 cells (IC50 0.14 ± 0.008 and 0.12 ± 0.004 mg/mL, respectively) and reduces the activity of this enzyme in HuTu 80 and SK-MEL-28 cells up to 50% at concentrations of 15.2 ± 9.5 and 5.7 ± 1.6 μg/mL, respectively. Molecular docking of the putative DP-15 oligophlorethol (P15OPh) and heptaphlorethol (PHPh) with human α-NaGalase (PDB ID 4DO4) showed that this compound forms a complex and interacts directly with the Asp 156 and Asp 217 catalytic residues of the enzyme in question. Thus, brown algae phlorethol CcPh is an effective marine-based natural inhibitor of the α-NaGalase of cancer cells and, therefore, has high therapeutic potential.
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Affiliation(s)
- Irina Bakunina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr-t 100-let Vladivostoka Str., 690022 Vladivostok, Russia
| | - Tatiana Imbs
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr-t 100-let Vladivostoka Str., 690022 Vladivostok, Russia
| | - Galina Likhatskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr-t 100-let Vladivostoka Str., 690022 Vladivostok, Russia
| | - Valeria Grigorchuk
- Federal Scientific Center of the East Asia Terrestrial Biodiversity, Far Eastern Branch, Russian Academy of Sciences, 159 Pr-t 100-let Vladivostoka Str., 690022 Vladivostok, Russia
| | - Anastasya Zueva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr-t 100-let Vladivostoka Str., 690022 Vladivostok, Russia
| | - Olesya Malyarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr-t 100-let Vladivostoka Str., 690022 Vladivostok, Russia
| | - Svetlana Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159 Pr-t 100-let Vladivostoka Str., 690022 Vladivostok, Russia
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Utkina N, Likhatskaya G, Malyarenko O, Ermakova S, Balabanova L, Slepchenko L, Bakunina I. Effects of Sponge-Derived Alkaloids on Activities of the Bacterial α-D-Galactosidase and Human Cancer Cell α-N-Acetylgalactosaminidase. Biomedicines 2021; 9:biomedicines9050510. [PMID: 34063022 PMCID: PMC8147984 DOI: 10.3390/biomedicines9050510] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 04/30/2021] [Accepted: 05/02/2021] [Indexed: 11/30/2022] Open
Abstract
During a search for glycosidase inhibitors among marine natural products, we applied an integrated in vitro and in silico approach to evaluate the potency of some aaptamines and makaluvamines isolated from marine sponges on the hydrolyzing activity of α-N-acetylgalactosaminidase (α-NaGalase) from human cancer cells and the recombinant α-D-galactosidase (α-PsGal) from a marine bacterium Pseudoalteromonas sp. KMM 701. These alkaloids showed no direct inhibitory effect on the cancer α-NaGalase; but isoaaptamine (2), 9-demethylaaptamine (3), damirone B (6), and makaluvamine H (7) reduced the expression of the enzyme in the human colorectal adenocarcinoma cell line DLD-1 at 5 μM. Isoaaptamine (2), 9-demethylaaptamine (3), makaluvamine G (6), and zyzzyanone A (7) are slow-binding irreversible inhibitors of the bacterial α-PsGal with the inactivation rate constants (kinact) 0.12 min−1, 0.092 min−1, 0.079 min−1, and 0.037 min−1, as well as equilibrium inhibition constants (Ki) 2.70 µM, 300 µM, 411 µM, and 105 µM, respectively. Docking analysis revealed that these alkaloids bind in a pocket close to the catalytic amino acid residues Asp451 and Asp516 and form complexes, due to π-π interactions with the Trp308 residue and hydrogen bonds with the Lys449 residue. None of the studied alkaloids formed complexes with the active site of the human α-NaGalase.
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Affiliation(s)
| | | | | | | | | | | | - Irina Bakunina
- Correspondence: ; Tel.: +7-(432)-231-07-05-(3); Fax: +7-(432)-231-07-05-(7)
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Kvetkina A, Malyarenko O, Pavlenko A, Dyshlovoy S, von Amsberg G, Ermakova S, Leychenko E. Sea Anemone Heteractis crispa Actinoporin Demonstrates In Vitro Anticancer Activities and Prevents HT-29 Colorectal Cancer Cell Migration. Molecules 2020; 25:molecules25245979. [PMID: 33348592 PMCID: PMC7766076 DOI: 10.3390/molecules25245979] [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: 11/03/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 02/07/2023] Open
Abstract
Actinoporins are the most abundant group of sea anemone cytolytic toxins. Their membranolytic activity is of high interest for the development of novel anticancer drugs. However, to date the activity of actinoporins in malignant cells has been poorly studied. Here, we report on recombinant analog of Hct-S3 (rHct-S3), belonging to the combinatory library of Heteractis crispa actinoporins. rHct-S3 exhibited cytotoxic activity against breast MDA-MB-231 (IC50 = 7.3 µM), colorectal HT-29 (IC50 = 6.8 µM), and melanoma SK-MEL-28 (IC50 = 8.3 µM) cancer cells. The actinoporin effectively prevented epidermal growth factor -induced neoplastic transformation of JB6 Cl41 cells by 34% ± 0.2 and decreased colony formation of HT-29 cells by 47% ± 0.9, MDA-MB-231 cells by 37% ± 1.2, and SK-MEL-28 cells by 34% ± 3.6. Moreover, rHct-S3 decreased proliferation and suppressed migration of colorectal carcinoma cells by 31% ± 5.0 and 99% ± 6.4, respectively. The potent anti-migratory activity was proposed to mediate by decreased matrix metalloproteinases-2 and -9 expression. In addition, rHct-S3 induced programmed cell death by cleavage of caspase-3 and poly (ADP-ribose) polymerase, as well as regulation of Bax and Bcl-2. Our results indicate rHct-S3 to be a promising anticancer drug with a high anti-migratory potential.
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Affiliation(s)
- Aleksandra Kvetkina
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, Vladivostok 690022, Russia; (O.M.); (A.P.); (S.E.); (E.L.)
- Correspondence: ; Tel.: +7-423-231-1168
| | - Olesya Malyarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, Vladivostok 690022, Russia; (O.M.); (A.P.); (S.E.); (E.L.)
| | - Aleksandra Pavlenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, Vladivostok 690022, Russia; (O.M.); (A.P.); (S.E.); (E.L.)
| | - Sergey Dyshlovoy
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumorzentrum, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (S.D.); (G.v.A.)
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, 20251 Hamburg, Germany
- School of Natural Sciences, Far Eastern Federal University, Vladivostok 690922, Russia
| | - Gunhild von Amsberg
- Department of Oncology, Hematology and Bone Marrow Transplantation with Section Pneumology, Hubertus Wald-Tumorzentrum, University Medical Center Hamburg-Eppendorf, 20251 Hamburg, Germany; (S.D.); (G.v.A.)
- Martini-Klinik, Prostate Cancer Center, University Hospital Hamburg-Eppendorf, 20251 Hamburg, Germany
| | - Svetlana Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, Vladivostok 690022, Russia; (O.M.); (A.P.); (S.E.); (E.L.)
| | - Elena Leychenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, 159, Pr. 100 let Vladivostoku, Vladivostok 690022, Russia; (O.M.); (A.P.); (S.E.); (E.L.)
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Belik A, Silchenko A, Malyarenko O, Rasin A, Kiseleva M, Kusaykin M, Ermakova S. Two New Alginate Lyases of PL7 and PL6 Families from Polysaccharide-Degrading Bacterium Formosa algae KMM 3553 T: Structure, Properties, and Products Analysis. Mar Drugs 2020; 18:md18020130. [PMID: 32102373 PMCID: PMC7074159 DOI: 10.3390/md18020130] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [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: 01/24/2020] [Revised: 02/22/2020] [Accepted: 02/23/2020] [Indexed: 12/12/2022] Open
Abstract
A bifunctional alginate lyase (ALFA3) and mannuronate-specific alginate lyase (ALFA4) genes were found in the genome of polysaccharide-degrading marine bacterium Formosa algae KMM 3553T. They were classified to PL7 and PL6 polysaccharide lyases families and expressed in E. coli. The recombinant ALFA3 appeared to be active both on mannuronate- and guluronate-enriched alginates, as well as pure sodium mannuronate. For all substrates, optimum conditions were pH 6.0 and 35 °C; Km was 0.12 ± 0.01 mg/ml, and half-inactivation time was 30 min at 42 °C. Recombinant ALFA4 was active predominately on pure sodium mannuronate, with optimum pH 8.0 and temperature 30 °C, Km was 3.01 ± 0.05 mg/ml. It was stable up to 30 °C; half-inactivation time was 1h 40 min at 37 °C. 1H NMR analysis showed that ALFA3 degraded mannuronate and mannuronate-guluronate blocks, while ALFA4 degraded only mannuronate blocks, producing mainly disaccharides. Products of digestion of pure sodium mannuronate by ALFA3 at 200 µg/ml inhibited anchorage-independent colony formation of human melanoma cells SK-MEL-5, SK-MEL-28, and RPMI-7951 up to 17% stronger compared to native polymannuronate. This fact supports previous data and suggests that mannuronate oligosaccharides may be useful for synergic tumor therapy.
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Besednova N, Zaporozhets T, Kuznetsova T, Makarenkova I, Fedyanina L, Kryzhanovsky S, Malyarenko O, Ermakova S. Metabolites of Seaweeds as Potential Agents for the Prevention and Therapy of Influenza Infection. Mar Drugs 2019; 17:E373. [PMID: 31234532 PMCID: PMC6627559 DOI: 10.3390/md17060373] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [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: 05/15/2019] [Revised: 06/19/2019] [Accepted: 06/20/2019] [Indexed: 02/07/2023] Open
Abstract
CONTEXT Seaweed metabolites (fucoidans, carrageenans, ulvans, lectins, and polyphenols) are biologically active compounds that target proteins or genes of the influenza virus and host components that are necessary for replication and reproduction of the virus. OBJECTIVE This review gathers the information available in the literature regarding to the useful properties of seaweeds metabolites as potential agents for the prevention and therapy of influenza infection. MATERIALS AND METHODS The sources of scientific literature were found in various electronic databases (i.e., PubMed, Web of Science, and ScienceDirect) and library search. The retrospective search depth is 25 years. RESULTS Influenza is a serious medical and social problem for humanity. Recently developed drugs are quite effective against currently circulating influenza virus strains, but their use can lead to the selection of resistant viral strains. In this regard, new therapeutic approaches and drugs with a broad spectrum of activity are needed. Metabolites of seaweeds fulfill these requirements. This review presents the results of in vitro and in vivo experimental and clinical studies about the effectiveness of these compounds in combating influenza infection and explains the necessity of their use as a potential basis for the creation of new drugs with a broad spectrum of activity.
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Affiliation(s)
- Natalia Besednova
- Federal State Budgetary Scientific Institution, Somov Research Institute of Epidemiology and Microbiology, Sel'skaya street, 1, Vladivostok 690087, Russia.
| | - Tatiana Zaporozhets
- Federal State Budgetary Scientific Institution, Somov Research Institute of Epidemiology and Microbiology, Sel'skaya street, 1, Vladivostok 690087, Russia.
| | - Tatiana Kuznetsova
- Federal State Budgetary Scientific Institution, Somov Research Institute of Epidemiology and Microbiology, Sel'skaya street, 1, Vladivostok 690087, Russia.
| | - Ilona Makarenkova
- Federal State Budgetary Scientific Institution, Somov Research Institute of Epidemiology and Microbiology, Sel'skaya street, 1, Vladivostok 690087, Russia.
| | - Lydmila Fedyanina
- Far Eastern Federal University, School of Biomedicine, bldg. M25 FEFU Campus, Ajax Bay, Russky Isl., Vladivostok 690922, Russia.
| | - Sergey Kryzhanovsky
- Far Eastern Federal University, School of Biomedicine, bldg. M25 FEFU Campus, Ajax Bay, Russky Isl., Vladivostok 690922, Russia.
| | - Olesya Malyarenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Pr. 100-letiya Vladivostoka, 159, Vladivostok 690022, Russia.
| | - Svetlana Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Pr. 100-letiya Vladivostoka, 159, Vladivostok 690022, Russia.
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Bakunina I, Chadova O, Malyarenko O, Ermakova S. The Effect of Fucoidan from the Brown Alga Fucus evanescence on the Activity of α- N-Acetylgalactosaminidase of Human Colon Carcinoma Cells. Mar Drugs 2018; 16:E155. [PMID: 29748462 PMCID: PMC5983286 DOI: 10.3390/md16050155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Revised: 05/07/2018] [Accepted: 05/08/2018] [Indexed: 11/16/2022] Open
Abstract
α-N-acetylgalactosaminidase (EC 3.2.1.49) (alpha-NaGalase) catalyzes the hydrolysis of N-acetamido-2-deoxy-α-d-galactoside residues from non-reducing ends of various complex carbohydrates and glycoconjugates. It is known that human cancer cells express an alpha-NaGalase, which accumulates in the blood plasma of patients. The enzyme deglycosylates the Gc protein-derived macrophage activating factor (GcMAF) and inhibits macrophage activity acting as an immunosuppressor. The high specific activity 0.033 ± 0.002 μmol mg−1 min−1 of the enzyme was found in human colon carcinoma cells DLD-1. The alpha-NaGalase of DLD-1 cells was isolated and biochemical characterized. The enzyme exhibits maximum activity at pH 5.2 and temperature 55 °C. The Km is 2.15 mM, Vmax⁻0.021 μmol min−1 mL−1, kcat⁻1.55 min−1 and kcat/Km⁻0.72 min−1 mM−1 at 37 °C, pH 5.2. The effects of fucoidan from the brown alga Fucus evanescence on the activity of alpha-NaGalase in human colon carcinoma DLD-1 cells and on the biosynthesis of this enzyme were investigated. It was shown that fucoidan did not inhibit free alpha-NaGalase, however, it reduced the expression of the enzyme in the DLD-1 cells at IC50 73 ± 4 μg mL−1.
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Affiliation(s)
- Irina Bakunina
- Laboratory of Enzyme Chemistry of G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690022, Russia.
| | - Oksana Chadova
- School of Natural Sciences, Far Eastern Federal University, Vladivostok 690091, Russia.
| | - Olesya Malyarenko
- Laboratory of Enzyme Chemistry of G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690022, Russia.
| | - Svetlana Ermakova
- Laboratory of Enzyme Chemistry of G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690022, Russia.
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Choi Y, Min SK, Usoltseva R, Silchenko A, Zvyagintseva T, Ermakova S, Kim JK. Thrombolytic fucoidans inhibit the tPA-PAI1 complex, indicating activation of plasma tissue-type plasminogen activator is a mechanism of fucoidan-mediated thrombolysis in a mouse thrombosis model. Thromb Res 2017; 161:22-25. [PMID: 29178986 DOI: 10.1016/j.thromres.2017.11.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2017] [Revised: 11/16/2017] [Accepted: 11/19/2017] [Indexed: 10/18/2022]
Affiliation(s)
- Younshick Choi
- Department of Radiology and Biomedical Engineering, School of Medicine, Catholic University of Daegu, Republic of Korea
| | - Soon-Ki Min
- Department of Radiology and Biomedical Engineering, School of Medicine, Catholic University of Daegu, Republic of Korea
| | - Roza Usoltseva
- Department of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry Far Eastern Branch, Russian Academy of Sciences, Russia
| | - Artem Silchenko
- Department of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry Far Eastern Branch, Russian Academy of Sciences, Russia
| | - Tatyana Zvyagintseva
- Department of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry Far Eastern Branch, Russian Academy of Sciences, Russia
| | - Svetlana Ermakova
- Department of Enzyme Chemistry, G.B. Elyakov Pacific Institute of Bioorganic Chemistry Far Eastern Branch, Russian Academy of Sciences, Russia.
| | - Jong-Ki Kim
- Department of Radiology and Biomedical Engineering, School of Medicine, Catholic University of Daegu, Republic of Korea.
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Affiliation(s)
- Antonio Trincone
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche Pozzuoli, Italy
| | - Mikhail Kusaykin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences Vladivostok, Russia
| | - Svetlana Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences Vladivostok, Russia
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Ermakova S, Kusaykin M, Trincone A, Tatiana Z. Are multifunctional marine polysaccharides a myth or reality? Front Chem 2015; 3:39. [PMID: 26176008 PMCID: PMC4485228 DOI: 10.3389/fchem.2015.00039] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Accepted: 06/08/2015] [Indexed: 12/26/2022] Open
Affiliation(s)
- Svetlana Ermakova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences Vladivostok, Russia
| | - Mikhail Kusaykin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences Vladivostok, Russia
| | - Antonio Trincone
- Istituto di Chimica Biomolecolare, Consiglio Nazionale delle Ricerche Pozzuoli, Italy
| | - Zvyagintseva Tatiana
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences Vladivostok, Russia
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Ermakova S, Men'shova R, Vishchuk O, Kim SM, Um BH, Isakov V, Zvyagintseva T. Water-soluble polysaccharides from the brown alga Eisenia bicyclis: Structural characteristics and antitumor activity. ALGAL RES 2013. [DOI: 10.1016/j.algal.2012.10.002] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ermakova S, Sokolova R, Kim SM, Um BH, Isakov V, Zvyagintseva T. Fucoidans from brown seaweeds Sargassum hornery, Eclonia cava, Costaria costata: structural characteristics and anticancer activity. Appl Biochem Biotechnol 2011; 164:841-50. [PMID: 21302149 DOI: 10.1007/s12010-011-9178-2] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2010] [Accepted: 01/18/2011] [Indexed: 11/30/2022]
Abstract
Fucoidans were isolated by water extraction and ion-exchange chromatography from brown algae Eclonia cava, Sargassum hornery, and Costaria costata collected near of Korean coasts. The structures of fucoidans were investigated. Fucoidan from E. cava was mixture of sulfated rhamnogalactofucan and galactofucan. Fucoidan from C. costata was a sulfated galactofucan. Fucoidan isolated from S. hornery was separated into three fractions: a homofucan sulfate, a homofucan but without sulfate groups, and a sulfated rhamnofucan. The results clearly showed that fucoidans play an inhibitory role in colony formation in human melanoma and colon cancer cells and may be effective antitumor agents.
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Affiliation(s)
- Svetlana Ermakova
- Pacific Institute of Bioorganic Chemistry of Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia.
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Kusaykin M, Bakunina I, Sova V, Ermakova S, Kuznetsova T, Besednova N, Zaporozhets T, Zvyagintseva T. Structure, biological activity, and enzymatic transformation of fucoidans from the brown seaweeds. Biotechnol J 2008; 3:904-15. [PMID: 18543244 DOI: 10.1002/biot.200700054] [Citation(s) in RCA: 158] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Recent advances in the study of fucoidans, biologically active sulfated alpha-L-fucans of diverse structures and synthesized exclusively by marine organisms, are overviewed. Their structure, biological activity, the products of their enzymatic degradation and the different enzymes of degradation and modification are considered.
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Affiliation(s)
- Mikhail Kusaykin
- Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch, Russian Academy of Sciences, Vladivostok, Russia
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He Z, Tang F, Ermakova S, Li M, Zhao Q, Cho YY, Ma WY, Choi HS, Bode AM, Yang CS, Dong Z. Fyn is a novel target of (-)-epigallocatechin gallate in the inhibition of JB6 Cl41 cell transformation. Mol Carcinog 2008; 47:172-83. [PMID: 18095272 DOI: 10.1002/mc.20299] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The cancer preventive action of (-)-epigallocatechin gallate (EGCG), found in green tea, is strongly supported by epidemiology and laboratory research data. However, the mechanism by which EGCG inhibits carcinogenesis and cell transformation is not clear. In this study, we report that EGCG suppressed epidermal growth factor (EGF)-induced cell transformation in JB6 cells. We also found that EGCG inhibited EGF-induced Fyn kinase activity and phosphorylation in vitro and in vivo. Fyn was implicated in the process because EGF-induced JB6 cell transformation was inhibited by small interfering RNA (siRNA)-Fyn-JB6 cells. With an in vitro protein-binding assay, we found that EGCG directly bound with the GST-Fyn-SH2 domain but not the GST-Fyn-SH3 domain. The K(d) value for EGCG binding to the Fyn SH2 domain was 0.367 +/- 0.122 microM and B(max) was 1.35 +/- 0.128 nmol/mg. Compared with control JB6 Cl41 cells, EGF-induced phosphorylation of p38 MAP kinase (p38 MAPK) (Thr180/Tyr182), ATF-2 (Thr71) and signal transducer and activator of transcription 1 (STAT1) (Thr727) was decreased in siRNA-Fyn-JB6 cells. EGCG could inhibit the phosphorylation of p38 MAPK, ATF-2, and STAT1. The DNA binding ability of AP-1, STAT1, and ATF-2 was also decreased in siRNA-Fyn-JB6 cells. Overall, these results demonstrated that EGCG interacted with Fyn and inhibited Fyn kinase activity and thereby regulated EGF-induced cell transformation. Inhibition of Fyn kinase activity is a novel and important mechanism that may be involved in EGCG-induced inhibition of cell transformation.
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Affiliation(s)
- Zhiwei He
- Hormel Institute, The University of Minnesota, Austin, Minnesota 55912, USA
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Li M, He Z, Ermakova S, Zheng D, Tang F, Cho YY, Zhu F, Ma WY, Sham Y, Rogozin EA, Bode AM, Cao Y, Dong Z. Direct inhibition of insulin-like growth factor-I receptor kinase activity by (-)-epigallocatechin-3-gallate regulates cell transformation. Cancer Epidemiol Biomarkers Prev 2007; 16:598-605. [PMID: 17372258 DOI: 10.1158/1055-9965.epi-06-0892] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.1] [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: 12/11/2022] Open
Abstract
Insulin-like growth factor-I receptor (IGF-IR) has been implicated in cancer pathophysiology. Furthermore, impairment of IGF-IR signaling in various cancer cell lines caused inhibition of the transformed phenotype as determined by the inhibition of colony formation in soft agar and the inhibition of tumor formation in athymic nude mice. Thus, the IGF-IR might be an attractive target for cancer prevention. We showed that the tea polyphenol, (-)-epigallocatechin-3-gallate (EGCG), is a small-molecule inhibitor of IGF-IR activity (IC50 of 14 micromol/L). EGCG abrogated anchorage-independent growth induced by IGF-IR overexpression and also prevented human breast and cervical cancer cell phenotype expression through inhibition of IGF-IR downstream signaling. Our findings are the first to show that the IGF-IR is a novel binding protein of EGCG and thus may help explain the chemopreventive effect of EGCG on cancer development.
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Affiliation(s)
- Ming Li
- Hormel Institute, University of Minnesota, 801 16th Avenue Northeast, Austin, MN 55912, USA
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Cho YY, Yao K, Bode AM, Bergen HR, Madden BJ, Oh SM, Ermakova S, Kang BS, Choi HS, Shim JH, Dong Z. RSK2 mediates muscle cell differentiation through regulation of NFAT3. J Biol Chem 2007; 282:8380-92. [PMID: 17213202 PMCID: PMC2824544 DOI: 10.1074/jbc.m611322200] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [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: 11/06/2022] Open
Abstract
RSK2, an ERK downstream kinase, is a novel mediator of skeletal muscle cell differentiation through its regulation of NFAT3 activity. We found that the N-terminal (amino acids (aa) 1-68) and C-terminal (aa 416-674) kinase domains of RSK2 directly interacted with nuclear localization signal 1, the Ser/Pro repeat, and the polyproline domains (aa 261-365) of NFAT3. Upon A23187 stimulation, RSK2 induced nuclear localization of NFAT3. RSK2 phosphorylated NFAT3 in vitro (Km=3.559 microM), and activation of NFAT3 by RSK2 enhanced the promoter activity of NFAT3 downstream target genes in vivo. Furthermore, nuclear accumulation of NFAT3 was attenuated markedly in RSK2-/- cells compared with wild-type RSK2+/+ cells. Notably, RSK2 and NFAT3 induced a significant differentiation of C2C12 myoblasts to multinucleated myotubes. Multinucleated myotube differentiation was inhibited by small interfering RNA against RSK2, ERK1/2, or NFAT3. These results demonstrate that RSK2 is an important kinase for NFAT3 in mediating myotube differentiation.
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Affiliation(s)
- Yong-Yeon Cho
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - Ke Yao
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - Ann M. Bode
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - H. Robert Bergen
- Mayo Proteomics Research Center, Mayo Clinic College of Medicine, Rochester, Minnesota 55905
| | - Benjamin J. Madden
- Mayo Proteomics Research Center, Mayo Clinic College of Medicine, Rochester, Minnesota 55905
| | - Sang-Muk Oh
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - Svetlana Ermakova
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - Bong Seok Kang
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - Hong Seok Choi
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - Jung-Hyun Shim
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
| | - Zigang Dong
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912 and the
- To whom correspondence should be addressed: Hormel Inst., University of Minnesota, 801 16th Ave. NE, Austin, MN 55912. Tel.: 507-437-9600; Fax: 507-437-9606;
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17
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Ermakova S, Choi BY, Choi HS, Kang BS, Bode AM, Dong Z. The intermediate filament protein vimentin is a new target for epigallocatechin gallate. J Biol Chem 2005; 280:16882-90. [PMID: 15713670 DOI: 10.1074/jbc.m414185200] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.5] [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: 12/11/2022] Open
Abstract
Epigallocatechin gallate (EGCG) is the major active polyphenol in green tea. Protein interaction with EGCG is a critical step in the effects of EGCG on the regulation of various key proteins involved in signal transduction. We have identified a novel molecular target of EGCG using affinity chromatography, two-dimensional electrophoresis, and mass spectrometry for protein identification. Spots of interest were identified as the intermediate filament, vimentin. The identification was confirmed by Western blot analysis using an anti-vimentin antibody. Experiments using a pull-down assay with [3H]EGCG demonstrate binding of EGCG to vimentin with a Kd of 3.3 nm. EGCG inhibited phosphorylation of vimentin at serines 50 and 55 and phosphorylation of vimentin by cyclin-dependent kinase 2 and cAMP-dependent protein kinase. EGCG specifically inhibits cell proliferation by binding to vimentin. Because vimentin is important for maintaining cellular functions and is essential in maintaining the structure and mechanical integration of the cellular space, the inhibitory effect of EGCG on vimentin may further explain its anti-tumor-promoting effect.
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MESH Headings
- Amino Acid Sequence
- Animals
- Anticarcinogenic Agents/pharmacology
- Antineoplastic Agents/pharmacology
- Blotting, Western
- Catechin/analogs & derivatives
- Catechin/chemistry
- Cell Line
- Cell Proliferation
- Chromatography, Affinity
- Cyclic AMP-Dependent Protein Kinases/chemistry
- Dose-Response Relationship, Drug
- Electrophoresis, Gel, Two-Dimensional
- Flavonoids/chemistry
- Genetic Vectors
- Glutathione Transferase/metabolism
- Humans
- Immunoprecipitation
- Inhibitory Concentration 50
- Kinetics
- Mice
- Microscopy, Fluorescence
- Models, Chemical
- Molecular Sequence Data
- Peptides/chemistry
- Phenols/chemistry
- Phosphorylation
- Polyphenols
- Protein Binding
- Protein Structure, Tertiary
- RNA, Small Interfering/metabolism
- Serine/chemistry
- Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization
- Time Factors
- Vimentin/chemistry
- Vimentin/metabolism
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Affiliation(s)
- Svetlana Ermakova
- Hormel Institute, University of Minnesota, Austin, Minnesota 55912, USA
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