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Kolodeeva OE, Kolodeeva OE, Averinskaya DA, Makarova YA. Induction of the PERK-eIF2α-ATF4 Pathway in M1 Macrophages under Endoplasmic Reticulum Stress. DOKL BIOCHEM BIOPHYS 2024; 517:264-268. [PMID: 39002013 PMCID: PMC11263228 DOI: 10.1134/s1607672924600301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 07/15/2024]
Abstract
Translation inhibition can activate two cell death pathways. The first pathway is activated by translational aberrations, the second by endoplasmic reticulum (ER) stress. In this work, the effect of ribosome-inactivating protein type II (RIP-II) viscumin on M1 macrophages derived from the THP-1 cell line was investigated. The number of modified ribosomes was evaluated by real-time PCR. Transcriptome analysis revealed that viscumin induces the ER stress activated by the PERK sensor.
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Affiliation(s)
- O E Kolodeeva
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia.
| | - O E Kolodeeva
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia.
| | - D A Averinskaya
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia.
| | - Yu A Makarova
- Faculty of Biology and Biotechnology, HSE University, Moscow, Russia.
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
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2
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Specificity of viscumin revised. As probed with a printed glycan array. Biochimie 2022; 202:94-102. [PMID: 35988841 DOI: 10.1016/j.biochi.2022.08.009] [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: 07/06/2022] [Revised: 08/11/2022] [Accepted: 08/13/2022] [Indexed: 01/01/2023]
Abstract
Viscumin, a lectin used in anti-cancer therapy, was originally considered as βGal recognizing protein; later, an ability to bind 6'-sialyl N-acetyllactosamine (6'SLN) terminated gangliosides was found. Here we probed viscumin with a printed glycan array (PGA) containing a large number of mammalian sulfated glycans, and found a strong binding to glycans with 6-O-SuGal moiety as lactose, N-acetyllactosamine (LN), di-N-acetyllactosamine (LacdiNAc), and even 6-O-SuGalNAcα (but not SiaTn). Also, the ability to bind some of αGal terminated glycans, including Galα1-3Galβ1-4GlcNAc, was observed. Unexpectedly, only weak interaction was detected with parent neutral β-galactosides including LN-LN-LN and branched (LN)2LN oligolactosamines; in the light of these data, one should not confidently classify viscumin as a β-galactoside-binding lectin. Carrying out PGA in the presence of neutral or sulfated/sialylated glycan, together with sequential elution from lactose-sepharose and consideration of the protein structure, lead to the conclusion that two glycan-binding sites of viscumin have different specificities, one of which prefers charged sulfated and sialylated moieties.
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Differences in Medium-Induced Conformational Plasticity Presumably Underlie Different Cytotoxic Activity of Ricin and Viscumin. Biomolecules 2022; 12:biom12020295. [PMID: 35204796 PMCID: PMC8961613 DOI: 10.3390/biom12020295] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 02/04/2022] [Accepted: 02/08/2022] [Indexed: 01/03/2023] Open
Abstract
Structurally similar catalytic subunits A of ricin (RTA) and viscumin (MLA) exhibit cytotoxic activity through ribosome inactivation. Ricin is more cytotoxic than viscumin, although the molecular mechanisms behind this difference are still poorly understood. To shed more light on this problem, we used a combined biochemical/molecular modeling approach to assess possible relationships between the activity of toxins and their structural/dynamic properties. Based on bioassay measurements, it was suggested that the differences in activity are associated with the ability of RTA and MLA to undergo structural/hydrophobic rearrangements during trafficking through the endoplasmic reticulum (ER) membrane. Molecular dynamics simulations and surface hydrophobicity mapping of both proteins in different media showed that RTA rearranges its structure in a membrane-like environment much more efficiently than MLA. Their refolded states also drastically differ in terms of hydrophobic organization. We assume that the higher conformational plasticity of RTA is favorable for the ER-mediated translocation pathway, which leads to a higher rate of toxin penetration into the cytoplasm.
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4
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Makarova JA, Fomicheva KA, Osipyants AI, Shkurnikov MY, Pokryshchenko AA, Tonevitsky EA, Vechorko VI. Loop-Mediated Isothermal Amplification as a Promising Method for Mass COVID-19 Diagnostics. APPL BIOCHEM MICRO+ 2021; 57:845-850. [PMID: 34924586 PMCID: PMC8670616 DOI: 10.1134/s0003683821080032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 09/23/2020] [Accepted: 09/25/2020] [Indexed: 11/22/2022]
Abstract
Real-time reverse-transcription polymerase chain reaction (RT-PCR) is currently the most popular method for early COVID-19 diagnostics. However, loop-mediated isothermal amplification (LAMP) is superior to real-time RT-PCR in rapidity and simplicity, since it does not require expensive laboratory equipment and trained personnel. LAMP-based diagnostic kits for COVID-19 testing already exist, but corresponding tests are not yet widely available. The method has great potential for mass application. Here, we discuss the technical and methodological aspects of its widespread adoption.
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Affiliation(s)
- J A Makarova
- Faculty of Biology and Biotechnology, Higher School of Economics National Research University, 101000 Moscow, Russia
| | - K A Fomicheva
- Hertsen Moscow Oncology Research Institute, National Center of Medical Radiological Research, Ministry of Health of the Russian Federation, 125284 Moscow, Russia
| | - A I Osipyants
- Hertsen Moscow Oncology Research Institute, National Center of Medical Radiological Research, Ministry of Health of the Russian Federation, 125284 Moscow, Russia.,Far Eastern Federal University, 690091 Vladivostok, Russia
| | - M Yu Shkurnikov
- Hertsen Moscow Oncology Research Institute, National Center of Medical Radiological Research, Ministry of Health of the Russian Federation, 125284 Moscow, Russia
| | - A A Pokryshchenko
- Faculty of Biology and Biotechnology, Higher School of Economics National Research University, 101000 Moscow, Russia
| | - E A Tonevitsky
- Development Fund, Mendeleev Valley, Innovative Scientific and Technological Center, 125480 Moscow, Russia
| | - V I Vechorko
- Filatov City Clinical Hospital no. 15, Department of Health of Moscow, 111539 Moscow, Russia
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5
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Maltseva DV, Raigorodskaya MP, Zgoda VG, Tonevitsky EA, Knyazev EN. Intracellular Transport of Ribosome-Inactivating Proteins Depends on Annexin 13. DOKL BIOCHEM BIOPHYS 2020; 494:219-221. [PMID: 33119820 DOI: 10.1134/s1607672920040092] [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: 03/19/2020] [Revised: 04/06/2020] [Accepted: 04/06/2020] [Indexed: 11/23/2022]
Abstract
In the present study, we assessed the role of annexin 13 membrane-binding protein (ANXA13) in the intracellular transport of vesicles containing type II ribosome-inactivating proteins (RIP-IIs). A modified human intestinal epithelial cell line HT29 was used, in which the expression of ANXA13 was significantly reduced. The cytotoxic effect of ricin and viscumin was evaluated by modification of 28S ribosome RNA. The observed differences in the activity of toxins on the parental and modified HT29 lines indicate that ANXA13 plays a different role in the intracellular transport of vesicles containing the RIP-IIs.
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Affiliation(s)
- D V Maltseva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia. .,Scientific Research Center Bioclinicum, Moscow, Russia. .,Faculty of Biology and Biotechnology, National Research University Higher School of Economics, Moscow, Russia.
| | | | - V G Zgoda
- Institute of Biomedical Chemistry, Moscow, Russia
| | - E A Tonevitsky
- Development Fund of the Mendeleev Valley Innovation Science and Technology Center, Moscow, Russia
| | - E N Knyazev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
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Maltseva DV, Raigorodskaya MP, Tikhonova OV, Knyazev EN, Tonevitsky EA. Relationship between the Expression Level of PSMD11 and Other Proteasome Proteins with the Activity of Ricin and Viscumin. DOKL BIOCHEM BIOPHYS 2020; 493:198-200. [PMID: 32894464 DOI: 10.1134/s1607672920040080] [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: 03/23/2020] [Revised: 03/25/2020] [Accepted: 03/27/2020] [Indexed: 11/23/2022]
Abstract
The role of proteasome proteins and proteins of the ERAD system in the cytotoxicity of type II ribosome-inactivating proteins ricin and viscumin was investigated. For this, the cell line of colorectal adenocarcinoma HT29, as well as the HT29-sh002 line obtained on its basis, were used. On the basis on the proteome analysis of these lines and the estimation of the proportion of inactivated ribosomes, it was shown that the contribution of the proteasome to the degradation of the catalytic subunits of toxins is different. The role of the Cdc37 co-chaperone in maintaining the stability of A subunit of viscumin in the cytoplasm is shown.
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Affiliation(s)
- D V Maltseva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia. .,Scientific Research Center Bioclinicum, Moscow, Russia. .,Faculty of Biology and Biotechnology, National Research University Higher School of Economics, Moscow, Russia.
| | | | | | - E N Knyazev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia.
| | - E A Tonevitsky
- Development Fund of the Mendeleev Valley Innovation Science and Technology Center, Moscow, Russia
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Maltseva DV, Shkurnikov MY, Nersisyan SA, Nikulin SV, Kurnosov AA, Raigorodskaya MP, Osipyants AI, Tonevitsky EA. Hypoxia enhances transcytosis in intestinal enterocytes. BULLETIN OF RUSSIAN STATE MEDICAL UNIVERSITY 2020. [DOI: 10.24075/brsmu.2020.049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The integrity of the intestinal epithelial cell lining is crucial for the normal intestinal function. As a rule, intestinal inflammation is associated with additional tissue hypoxia, leading to the loss of epithelial monolayer integrity. However, in the absence of visible damage to the epithelium, there still might be a risk of infection driven by changes in the intracellular transport of bacteria-containing vesicles. The aim of this study was to investigate the effects of hypoxia on transcytosis using a human intestinal enterocyte model. We found that hypoxia enhances transcytosis of the model protein ricin 1.8-fold. The comparative transcriptome and proteome analyses revealed significant changes in the expression of genes involved in intracellular vesicle transport. Specifically, the expression of apoB (the regulator of lipid metabolism) was changed at both protein (6.5-fold) and mRNA (2.1-fold) levels. Further research is needed into the possible mechanism regulating gene expression in intestinal erythrocytes under hypoxic conditions.
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Affiliation(s)
- DV Maltseva
- National Research University Higher School of Economics, Moscow, Russia
| | - MYu Shkurnikov
- National Research University Higher School of Economics, Moscow, Russia; P. A. Hertsen Moscow Oncology Research Center, branch of the National Medical Research Radiology Center, Moscow, Russia
| | - SA Nersisyan
- National Research University Higher School of Economics, Moscow, Russia
| | - SV Nikulin
- National Research University Higher School of Economics, Moscow, Russia
| | - AA Kurnosov
- National Research University Higher School of Economics, Moscow, Russia
| | | | - AI Osipyants
- P. A. Hertsen Moscow Oncology Research Center, branch of the National Medical Research Radiology Center, Moscow, Russia; Far Eastern Federal University, Vladivostok, Russia
| | - EA Tonevitsky
- Fund for Development of Innovative Scientific-Technological Center Mendeleev Valley, Moscow, Russia
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8
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Volynsky PE, Nolde DE, Zakharova GS, Palmer RA, Tonevitsky AG, Efremov RG. Specific refolding pathway of viscumin A chain in membrane-like medium reveals a possible mechanism of toxin entry into cell. Sci Rep 2019; 9:413. [PMID: 30674891 PMCID: PMC6344525 DOI: 10.1038/s41598-018-36310-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 11/19/2018] [Indexed: 11/24/2022] Open
Abstract
How is a water-soluble globular protein able to spontaneously cross a cellular membrane? It is commonly accepted that it undergoes significant structural rearrangements on the lipid-water interface, thus acquiring membrane binding and penetration ability. In this study molecular dynamics (MD) simulations have been used to explore large-scale conformational changes of the globular viscumin A chain in a complex environment – comprising urea and chloroform/methanol (CHCl3/MeOH) mixture. Being well-packed in aqueous solution, viscumin A undergoes global structural rearrangements in both organic media. In urea, the protein is “swelling” and gradually loses its long-distance contacts, thus resembling the “molten globule” state. In CHCl3/MeOH, viscumin A is in effect turned “inside out”. This is accompanied with strengthening of the secondary structure and surface exposure of hydrophobic epitopes originally buried inside the globule. Resulting solvent-adapted models were further subjected to Monte Carlo simulations with an implicit hydrophobic slab membrane. In contrast to only a few point surface contacts in water and two short regions with weak protein-lipid interactions in urea, MD-derived structures in CHCl3/MeOH reveal multiple determinants of membrane interaction. Consequently it is now possible to propose a specific pathway for the structural adaptation of viscumin A with respect to the cell membrane – a probable first step of its translocation into cytoplasmic targets.
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Affiliation(s)
- Pavel E Volynsky
- M.M. Shemyakin & Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street, 16/10, Moscow, 117997, Russia
| | - Dmitry E Nolde
- M.M. Shemyakin & Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street, 16/10, Moscow, 117997, Russia
| | - Galina S Zakharova
- Scientific and Research Center "BioClinicum", Ugreshkaya Street, 2/85, Moscow, 115088, Russia
| | - Rex A Palmer
- Department of Crystallography, Biochemical Sciences, Birkbeck College, Malet St, London, WC1E7HX, UK
| | - Alexander G Tonevitsky
- Scientific and Research Center "BioClinicum", Ugreshkaya Street, 2/85, Moscow, 115088, Russia.,National Research University Higher School of Economics, Myasnitskaya ul. 20, 101000, Moscow, Russia
| | - Roman G Efremov
- M.M. Shemyakin & Yu.A. Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya Street, 16/10, Moscow, 117997, Russia. .,National Research University Higher School of Economics, Myasnitskaya ul. 20, 101000, Moscow, Russia. .,Moscow Institute of Physics and Technology, Institutsky per., 9, 141700, Dolgoprudnyi, Russia.
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9
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Nikulin SV, Mnafki NA, Shilin SA, Gazizov IN, Maltseva DV. Ribosome Inactivation and the Integrity of the Intestinal Epithelial Barrier. Mol Biol 2018. [DOI: 10.1134/s0026893318040143] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Maltseva DV, Nikulin SV, Sergeeva NS, Tonevitskaya SA, Sakharov DA. Elimination of a Viscumin-Ferromagnetic Nanoparticles Conjugate from the Tumor Nodule in Mice. Bull Exp Biol Med 2017; 163:745-748. [PMID: 29063321 DOI: 10.1007/s10517-017-3894-8] [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: 12/06/2016] [Indexed: 10/18/2022]
Abstract
External magnetic field is characterized by low toxicity and existence of magnetic properties, which contributes to an interest in the development of products from ferromagnetic nanoparticles (FNP) for antitumor therapy. Previously we synthesized a conjugate of ferromagnetic magnetite nanoparticles and viscumin (mistletoe lectin I, MLI), which exhibits the antitumor activity. Studying the pharmacological properties of this conjugate (FNP-MLI) was directed to the evaluation of FNP-MLI elimination after intratumor injection in mice. The elimination rate of FNP-MLI was much lower than that of native plant MLI. The presence of FNP-MLI was not accompanied by undesired changes in the tumor tissue. The use of a FNP-MLI conjugate allowed us to prolong the time of MLI presence in tissues without increasing the dose of exogenous lectin. These features contribute to the prolongation of an immunomodulatory effect of MLI.
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Affiliation(s)
| | | | - N S Sergeeva
- P. A. Hertsen Moscow Oncology Research Center - Branch of National Medical Research Radiology Center, Ministry of Health of the Russian Federation, Moscow, Russia
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11
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Target Cell Glycosylation Determines the Biodistribution of Plant Lectin Viscumin. Bull Exp Biol Med 2017; 163:482-485. [PMID: 28853065 DOI: 10.1007/s10517-017-3833-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Indexed: 10/19/2022]
Abstract
We studied the possibility of using viscumin lectin (MLI) for targeted delivery of antitumor drugs. Affinity of MLI for more than 600 oligosaccharide structures was determined and the glycosylation profiles of cell surface in various mouse tissues were analyzed. It was found that biodistribution of MLI was determined by not only expression of oligosaccharides specifically recognized by the lectin in tissue cells, but also by the structure of glycan in general.
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Maltseva DV, Krainova NA, Khaustova NA, Nikulin SV, Tonevitskaya SA, Poloznikov AA. Biodistribution of Viscumin after Subcutaneous Injection to Mice and In Vitro Modeling of Endoplasmic Reticulum Stress. Bull Exp Biol Med 2017; 163:451-455. [DOI: 10.1007/s10517-017-3826-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Indexed: 12/01/2022]
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13
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Application of Peak Intensity Analysis to Measurements of Protein Binding to Lipid Vesicles and Erythrocytes Using Fluorescence Correlation Spectroscopy: Dependence on Particle Size. J Membr Biol 2016; 250:77-87. [PMID: 27837242 DOI: 10.1007/s00232-016-9938-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 11/03/2016] [Indexed: 10/20/2022]
Abstract
Fluorescence correlation spectroscopy (FCS) is a sensitive analytical tool for investigation of processes accompanied by changes in the mobility of molecules and complexes. In the present work, peak intensity analysis (PIA) in combination with the solution stirring using FCS setup was applied to explore the interaction between fluorescently labeled protein ligands and corresponding receptors located on membranes. In the system composed of biotinylated liposomes and fluorescently labeled streptavidin as a ligand, PIA allowed us to determine the optimum receptor concentration and demonstrate the essential dependence of the binding efficacy on the length of the linker between the biotin group and the polar head group of the lipid. The binding was dependent on the size of liposomes which was varied by lipid extrusion through filters of different pore diameters. The sensitivity of the method was higher with the liposomes of larger sizes. The PIA approach can be applied not only to liposomes but also to relatively large objects, e.g., erythrocytes or Sepharose beads derivatized with lactose as a receptor for the binding of viscumin and ricin.
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Khutornenko AA, Gerasimov VM, Sakharov DA. Preparation of Viscumin-Ferromagnetic Particles Conjugate and Study of Its Internalization by Human Glioblastoma A172 Cells. Bull Exp Biol Med 2016; 160:823-6. [PMID: 27165082 DOI: 10.1007/s10517-016-3319-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2015] [Indexed: 10/21/2022]
Abstract
Magnetite particles modified by polyethylene glycol with a molecular weight of 3 kDa and hydrodynamic diameter of ~60 nm were used. Plant lectin viscumin covalently immobilized on these nanoparticles retained its binding activity. Immunochemical characteristics of conjugated viscumin were evaluated using monoclonal antibodies. The resultant conjugate with a hydrodynamic diameter of 70 nm was used for studies of binding and internalization by target cells. Binding of viscumin and its conjugate was determined by receptors containing terminal galactose, while intracellular distribution varied. The model system presented in this study can be used for creation of drugs for target therapy.
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Affiliation(s)
| | - V M Gerasimov
- BioClinicum Research and Technology Center, Moscow, Russia
| | - D A Sakharov
- BioClinicum Research and Technology Center, Moscow, Russia.
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Localization and Expression of Nucleoside Transporters ENT1 and ENT2 in Polar Cells of Intestinal Epithelium. Bull Exp Biol Med 2016; 160:771-4. [PMID: 27160886 DOI: 10.1007/s10517-016-3306-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Indexed: 10/21/2022]
Abstract
Сасо-2 cell line is widely used in in vitro studies of the intestinal wall permeability for drugs, but transport activity of these cells has not been thoroughly studied. We analyzed localization and expression of nucleoside transporters of the ENT family transferring a number of anticancer and antiviral drugs. Immunocytochemical staining revealed apical localization of ENT1 and integral expression of ENT2 in Caco-2 cells. Based on these data and on the value of hypoxanthine uptake by these cells, we created a mathematical model allowing quantification of transporter expression on the apical and basolateral membranes of Caco-2 cells. The discrepancy between gene and protein expression of the transporter complicating prediction of patient's sensitivity to the drug upon individual therapy selection is discussed.
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16
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Aleksandrova AV, Pulkova NP, Gerasimenko TN, Anisimov NY, Tonevitskaya SA, Sakharov DA. Mathematical and Experimental Model of Oxygen Diffusion for HepaRG Cell Spheroids. Bull Exp Biol Med 2016; 160:857-60. [DOI: 10.1007/s10517-016-3326-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Indexed: 12/25/2022]
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Mulsow K, Enzlein T, Delebinski C, Jaeger S, Seifert G, Melzig MF. Impact of Mistletoe Triterpene Acids on the Uptake of Mistletoe Lectin by Cultured Tumor Cells. PLoS One 2016; 11:e0153825. [PMID: 27088729 PMCID: PMC4835140 DOI: 10.1371/journal.pone.0153825] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 04/04/2016] [Indexed: 01/11/2023] Open
Abstract
Complementary treatment possibilities for the therapy of cancer are increasing in demand due to the severe side effects of the standard cytostatics used in the first-line therapy. A common approach as a complementary treatment is the use of aqueous extracts of Viscum album L. (Santalaceace). The therapeutic activity of these extracts is attributed to Mistletoe lectins which are Ribosome-inactivating proteins type II. Besides these main constituents the extract of Viscum album L. comprises also a mixture of lipophilic ingredients like triterpene acids of the oleanane, lupane and ursane type. However, these constituents are not contained in commercially available aqueous extracts due to their high lipophilicity and insolubility in aqueous extraction media. To understand the impact of the extract ingredients in cancer therapy, the intracellular uptake of the mistletoe lectin I (ML) by cultured tumor cells was investigated in relation to the mistletoe triterpene acids, mainly oleanolic acid. Firstly, these hydrophobic triterpene acids were solubilized using cyclodextrins (“TT” extract). Afterwards, the uptake of either single compounds (isolated ML and the aqueous “viscum” extract) or in combination with the TT extract (ML+TT, viscumTT), was analyzed. The uptake of ML was studied inTHP-1-, HL-60-, 143B- and Ewing TC-71-cells and determined after 30, 60 and 120 minutes by an enzyme linked immunosorbent assay which quantifies the A-chain of the hololectin. It could be shown that the intracellular uptake after 120 minutes amounted to 20% in all cell lines after incubation with viscumTT. The studies further revealed that the uptake in THP-1-, HL-60- and Ewing TC-71-cells was independent of the addition of TT extract. Interestingly, the uptake of ML by 143B-cells could only be measured after addition of triterpenes pointing to resistance to mistletoe lectin.
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Affiliation(s)
- Katharina Mulsow
- Institute of Pharmacy, Department of Pharmaceutical Biology, Freie Universitaet Berlin, Berlin, Germany
| | - Thomas Enzlein
- Department of Biotechnology, Mannheim University of Applied Sciences, Mannheim, Germany
| | - Catharina Delebinski
- Department of Paediatrics, Division of Oncology / Haematology, Otto Heubner Centre for Paediatric and Adolescent Medicine (OHC), Charité Universitaetsmedizin Berlin, Berlin, Germany
| | | | - Georg Seifert
- Department of Paediatrics, Division of Oncology / Haematology, Otto Heubner Centre for Paediatric and Adolescent Medicine (OHC), Charité Universitaetsmedizin Berlin, Berlin, Germany
| | - Matthias F. Melzig
- Institute of Pharmacy, Department of Pharmaceutical Biology, Freie Universitaet Berlin, Berlin, Germany
- * E-mail:
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18
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RETRACTED: Silencing EGFR/HER3 signaling with a novel anti-EGFR domain II/IV antibody. Cancer Lett 2014; 357:374-383. [PMID: 25434797 DOI: 10.1016/j.canlet.2014.11.053] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2014] [Revised: 11/19/2014] [Accepted: 11/20/2014] [Indexed: 11/20/2022]
Abstract
Dysfunction of the epidermal growth factor receptor (EGFR) family, is the key process in tumorigenesis, and anti-EGFR therapeutic strategies such as cetuximab therapy now are used in the treatment of cancer. However, resistance to cetuximab is commonly reported. Comprehensive blockade of EGFR signaling using different antibodies might be critical to treat cancer effectively and limit drug resistance with potent novel mechanisms. Here, we launch a screen of a phage display library to isolate a novel anti-EGFR antibody, YAH627. YAH627 exhibits superior efficacy in inhibiting EGFR activation, particularly by blocking EGF/HRG-induced EGFR/HER3 heterodimerization and signaling, verifying it as an impressive candidate for clinical translation as a therapeutic antibody. Moreover, we use epitope analysis validates that the epitope of this antibody is within domains II and IV of EGFR and traps EGFR in a silent conformation. Moreover, combining YAH627 with cetuximab produces synergistic antitumor activity in vitro and in vivo. Taken together, our report establishes that YAH627 possesses a novel mechanism of action that, in combination with cetuximab, may achieve clinical efficacy in EGFR-driven cancers.
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19
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Moisenovich MM, Agapov II, Ramonova AA, Ol'shevskaya VA, Kalinin VN, Shtil' AA, Kirpichnikov MP. Effect of ricin on photodynamic damage to the plasma membrane. DOKL BIOCHEM BIOPHYS 2013; 449:84-6. [PMID: 23657653 DOI: 10.1134/s1607672913020087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Indexed: 11/22/2022]
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Baklaushev VP, Grinenko NF, Savchenko EA, Bykovskaya SN, Yusubalieva GM, Viktorov IV, Bryukhovetskii AS, Bryukhovetskii IS, Chekhonin VP. Neural progenitor and hemopoietic stem cells inhibit the growth of low-differentiated glioma. Bull Exp Biol Med 2012; 152:497-503. [PMID: 22803120 DOI: 10.1007/s10517-012-1562-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
The effects of neural progenitor and hemopoietic stem cells on C6 glioma cells were studied in in vivo and in vitro experiments. Considerable inhibition of proliferation during co-culturing of glioma cells with neural progenitor cells was revealed by quantitative MTT test and bromodeoxyuridine incorporation test. Labeled neural progenitor and hemopoietic stem cells implanted into the focus of experimental cerebral glioma C6 survive in the brain of experimental animals for at least 7 days, migrate with glioma cells, and accumulate in the peritumoral space. Under these conditions, neural progenitor cells differentiate with the formation of long processes. Morphometric analysis of glioma cells showed that implantation of neural progenitor and hemopoietic stem cells is accompanied by considerable inhibition of the growth of experimental glioma C6 in comparison with the control. The mechanisms of tumor-suppressive effects of neural and hemopoietic stem cells require further investigation.
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Affiliation(s)
- V P Baklaushev
- Department of Fundamental and Applied Neurobiology, V. P. Serbskii State Research Center of Forensic and Social Psychiatry, Mitistry of Health Care and Social Development of the Russian Federation, Moscow, Russia.
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21
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Wu W, Sun R. Toxicological studies on plant proteins: a review. J Appl Toxicol 2011; 32:377-86. [PMID: 22183867 DOI: 10.1002/jat.1780] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 10/08/2011] [Accepted: 10/27/2011] [Indexed: 11/08/2022]
Abstract
Nowadays, toxicological studies are contributing to human health more than ever. Reports on the toxicological studies of plant proteins, which are continuously growing in number in the literature, have been reviewed. Two important aspects are discussed: dietary safety evaluation, including toxicity tests and the maximum daily intake allowance, and the appropriate proportion in our daily diets of proteins from traditional foods and of new proteins from plant sources not traditionally employed as foods. Water hyacinth leaf proteins, sweet lupin proteins and canola proteins have not been shown to be toxic, although they are not traditionally employed as food proteins. These findings are very important for exploiting valuable new protein sources that are suitable for human or animal consumption and applicable to the food industry. Acutely toxic proteins, including lectins, ribosome-inactivating proteins, inhibitors of proteolytic enzymes and glycohydro-lases, have been isolated from plant materials and identified. Their toxicities and molecular characteristics have been described. The toxicity of proteins depends upon their specific native structures. Once they are denatured by appropriate treatment, such as heating, their toxicity can be reduced or even eliminated. These findings indicate that raw materials that contain this kind of toxic protein are not edible. However, after proper processing, they may be suitable for human or animal consumption. Although the toxicities of type 2 ribosome-inactivating proteins reported by different authors vary, the maximum dosages are still trace amounts.
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Affiliation(s)
- Wenbiao Wu
- College of Food Science, Southwest University, 216 Tian Sheng Qiao, Beibei, Chongqing, People's Republic of China.
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22
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Severino V, Chambery A, Di Maro A, Marasco D, Ruggiero A, Berisio R, Giansanti F, Ippoliti R, Parente A. The role of the glycan moiety on the structure–function relationships of PD-L1, type 1 ribosome-inactivating protein from P. dioica leaves. MOLECULAR BIOSYSTEMS 2010; 6:570-9. [DOI: 10.1039/b919801f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Jiménez M, André S, Barillari C, Romero A, Rognan D, Gabius HJ, Solís D. Domain versatility in plant AB-toxins: Evidence for a local, pH-dependent rearrangement in the 2γ lectin site of the mistletoe lectin by applying ligand derivatives and modelling. FEBS Lett 2008; 582:2309-12. [DOI: 10.1016/j.febslet.2008.05.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2008] [Accepted: 05/20/2008] [Indexed: 11/24/2022]
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24
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Müthing J, Meisen I, Bulau P, Langer M, Witthohn K, Lentzen H, Neumann U, Peter-Katalinić J. Mistletoe lectin I is a sialic acid-specific lectin with strict preference to gangliosides and glycoproteins with terminal Neu5Ac alpha 2-6Gal beta 1-4GlcNAc residues. Biochemistry 2004; 43:2996-3007. [PMID: 15023051 DOI: 10.1021/bi0301892] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Mistletoe lectin I (ML-I) is a type II ribosome-inactivating protein, which inhibits the protein biosynthesis at the ribosomal level. ML-I is composed of a catalytically active A-chain with rRNA N-glycosidase activity and a B-chain with carbohydrate binding specificities. Using comparative solid-phase binding assays along with electrospray ionization tandem mass spectrometry, ML-I was shown to preferentially bind to terminally alpha2-6-sialylated neolacto series gangliosides from human granulocytes. IV(6)Neu5Ac-nLc4Cer, VI(6)Neu5Ac-nLc6Cer, and VIII(6)Neu5Ac-nLc8Cer were identified as ML-I receptors, whereas the isomeric alpha2-3-sialylated neolacto series gangliosides were not recognized. Only marginal binding of ML-I to terminal galactose residues of neutral glycosphingolipids with a Galbeta1-4Glc or Galbeta1-4GlcNAc sequence was determined, whereas a distal Galalpha1-4Gal, GalNAcbeta1-3Gal, or GalNAcbeta1-4Gal disaccharide did not bind at all. Among the glycoproteins investigated in Western blot and microwell adsorption assays, only those carrying Neu5Acalpha2-6Galbeta1-4GlcNAc residues, exclusively, predominantly, or even as less abundant constituents in an assembly with Neu5Acalpha2-3Galbeta1-4GlcNAc-terminated glycans, displayed high ML-I binding capacity. From our data we conclude that (i) ML-I has to be considered as a sialic acid- and not a galactose-specific lectin and (ii) neolacto series gangliosides and sialoglycoproteins with type II glycans, which share the Neu5Acalpha2-6Galbeta1-4GlcNAc terminus, are true ML-I receptors. This strict preference might help to explain the immunostimulatory potential of ML-I toward certain leukocyte subpopulations and its therapeutic success as a cytotoxic anticancer drug.
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MESH Headings
- Adsorption
- Amino Acid Sequence
- Animals
- Antibodies, Monoclonal/chemistry
- Binding Sites, Antibody
- Carbohydrate Sequence
- Cattle
- Chromatography, High Pressure Liquid
- Chromatography, Thin Layer
- Electrophoresis, Polyacrylamide Gel
- Gangliosides/blood
- Gangliosides/chemistry
- Glycosphingolipids/blood
- Glycosphingolipids/chemistry
- Humans
- Lectins/chemistry
- Molecular Sequence Data
- N-Acetylneuraminic Acid/blood
- N-Acetylneuraminic Acid/chemistry
- Nanotechnology
- Oligosaccharides/blood
- Oligosaccharides/chemistry
- Peptide Mapping
- Plant Preparations/chemistry
- Plant Preparations/immunology
- Plant Preparations/metabolism
- Plant Proteins/chemistry
- Plant Proteins/immunology
- Plant Proteins/metabolism
- Protein Binding
- Ribosome Inactivating Proteins, Type 2
- Sialoglycoproteins/blood
- Sialoglycoproteins/chemistry
- Spectrometry, Mass, Electrospray Ionization
- Toxins, Biological/chemistry
- Toxins, Biological/immunology
- Toxins, Biological/metabolism
- Viscum/chemistry
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Affiliation(s)
- Johannes Müthing
- Institute for Medical Physics and Biophysics, University of Münster, Robert-Koch-Strasse 31, D-48149 Münster, Germany.
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25
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Moisenovich M, Tonevitsky A, Maljuchenko N, Kozlovskaya N, Agapov I, Volknandt W, Bereiter-Hahn J. Endosomal ricin transport: involvement of Rab4- and Rab5-positive compartments. Histochem Cell Biol 2004; 121:429-39. [PMID: 15221413 DOI: 10.1007/s00418-004-0652-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/21/2004] [Indexed: 01/01/2023]
Abstract
Transport of the ribosome-inactivating protein ricin through endosomes was studied in A431 cells expressing Rab5-, Rab4-, and Rab11-GFP. It was shown that Rab5- and Rab4-positive functional domains of early endosomes are involved in ricin transport. Ricin enters cells by both clathrin-dependent and clathrin-independent mechanisms. The main pool of internalized toxin accumulates in early endosomes and remains associated with them for a long time. In contrast to earlier observations, current observations indicate that the majority of ricin avoids transport to lysosomes. The low level of ricin association with Rab11 as well as with transferrin accumulated in the pericentriolar recycling compartment shows that the compartment is not responsible for keeping ricin away from degradation in lysosomes. Escape from degradation in lysosomes is assumed to result from the potentiality of ricin to form assemblies within compartments.
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Affiliation(s)
- Mihail Moisenovich
- Biological Faculty, Lomonosov Moscow State University, Vorobjovi gory, 119992, Moscow, Russia
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Niwa H, Tonevitsky AG, Agapov II, Saward S, Pfüller U, Palmer RA. Crystal structure at 3 A of mistletoe lectin I, a dimeric type-II ribosome-inactivating protein, complexed with galactose. EUROPEAN JOURNAL OF BIOCHEMISTRY 2003; 270:2739-49. [PMID: 12823544 DOI: 10.1046/j.1432-1033.2003.03646.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
The X-ray structure of mistletoe lectin I (MLI), a type-II ribosome-inactivating protein (RIP), cocrystallized with galactose is described. The model was refined at 3.0 A resolution to an R-factor of 19.9% using 21 899 reflections, with Rfree 24.0%. MLI forms a homodimer (A-B)2 in the crystal, as it does in solution at high concentration. The dimer is formed through contacts between the N-terminal domains of two B-chains involving weak polar and non-polar interactions. Consequently, the overall arrangement of sugar-binding sites in MLI differs from those in monomeric type-II RIPs: two N-terminal sugar-binding sites are 15 A apart on one side of the dimer, and two C-terminal sugar-binding sites are 87 A apart on the other side. Galactose binding is achieved by common hydrogen bonds for the two binding sites via hydroxy groups 3-OH and 4-OH and hydrophobic contact by an aromatic ring. In addition, at the N-terminal site 2-OH forms hydrogen bonds with Asp27 and Lys41, and at the C-terminal site 3-OH and 6-OH undergo water-mediated interactions and C5 has a hydrophobic contact. MLI is a galactose-specific lectin and shows little affinity for N-acetylgalactosamine. The reason for this is discussed. Structural differences among the RIPs investigated in this study (their quaternary structures, location of sugar-binding sites, and fine sugar specificities of their B-chains, which could have diverged through evolution from a two-domain protein) may affect the binding sites, and consequently the cellular transport processes and biological responses of these toxins.
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Affiliation(s)
- Hideaki Niwa
- School of Crystallography, Birkbeck College, University of London, Malet Street, London WC1E 7HX, UK.
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