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Dudkina E, Ulyanova V, Asmandiyarova V, Vershinina V, Ilinskaya O. Two Main Cancer Biomarkers as Molecular Targets of Binase Antitumor Activity. BIOMED RESEARCH INTERNATIONAL 2024; 2024:8159893. [PMID: 38374954 PMCID: PMC10876309 DOI: 10.1155/2024/8159893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/15/2023] [Accepted: 01/27/2024] [Indexed: 02/21/2024]
Abstract
Cancer is frequently coupled with the disturbance of key signaling pathways. Aberrant activation of the mitogen-activated protein kinase (MAPK) signaling cascade, occurring in over 85% of cancers, is mainly caused by the genetic alterations of its main components-oncogenes EGFR and RAS, and plays a crucial role in cell fate. The importance of EGFR and RAS proteins in a variety of tumors suggests that they would be good therapeutic targets, but at present, no effective targeted therapy against these two oncogenes has been proven. Here, we show that ribonuclease from Bacillus pumilus (binase) inhibits MAPK signaling through direct interaction with EGFR and RAS proteins. This effect contributes to the antitumor potential of binase along with its enzymatic activity. Multitargeticity of binase prevents the development of drug resistance, which is considered a major obstacle to effective anticancer treatment.
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Affiliation(s)
- Elena Dudkina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Vera Ulyanova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Violetta Asmandiyarova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Valentina Vershinina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Olga Ilinskaya
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
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Fibrin-Rhamnogalacturonan I Composite Gel for Therapeutic Enzyme Delivery to Intestinal Tumors. Int J Mol Sci 2023; 24:ijms24020926. [PMID: 36674440 PMCID: PMC9862006 DOI: 10.3390/ijms24020926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 12/22/2022] [Accepted: 12/30/2022] [Indexed: 01/06/2023] Open
Abstract
Therapy of colorectal cancer with protein drugs, including targeted therapy using monoclonal antibodies, requires the preservation of the drug's structure and activity in the gastrointestinal tract or bloodstream. Here, we confirmed experimentally the fundamental possibility of creating composite protein-polysaccharide hydrogels based on non-degrading rhamnogalacturonan I (RG) and fibrin as a delivery vehicle for antitumor RNase binase. The method is based on enzymatic polymerization of fibrin in the presence of RG with the inclusion of liposomes, containing an encapsulated enzyme drug, into the gel network. The proposed method for fabricating a gel matrix does not require the use of cytotoxic chemical cross-linking agents and divalent cations, and contains completely biocompatible and biodegradable components. The process proceeds under physiological conditions, excluding the effect of high temperatures, organic solvents and ultrasound on protein components. Immobilization of therapeutic enzyme binase in the carrier matrix by encapsulating it in liposomes made from uncharged lipid made it possible to achieve its prolonged release with preservation of activity for a long time. The release time of binase from the composite carrier can be regulated by variation of the fibrin and RG concentration.
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Bogdanova LR, Zelenikhin PV, Makarova AO, Zueva OS, Salnikov VV, Zuev YF, Ilinskaya ON. Alginate-Based Hydrogel as Delivery System for Therapeutic Bacterial RNase. Polymers (Basel) 2022; 14:polym14122461. [PMID: 35746037 PMCID: PMC9230862 DOI: 10.3390/polym14122461] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/13/2022] [Accepted: 06/15/2022] [Indexed: 12/30/2022] Open
Abstract
To deliver therapeutic proteins into a living body, it is important to maintain their target activity in the gastrointestinal tract after oral administration. Secreted ribonuclease from Bacillus pumilus (binase) has antitumor and antiviral activity, which makes it a promising therapeutic agent. This globular protein of small molecular weight (12.2 kDa) is considered as a potential agent that induces apoptosis of tumor cells expressing certain oncogenes, including colorectal and duodenum cancer. The most important problem of its usage is the preservation of its structure and target activity, which could be lost during oral administration. Here, we developed alginate microspheres reinforced with divalent cations and analyzed the enzyme release from them. Using methods of scanning electron microscopy, measurements of fluorescence, enzyme catalytic activity, and determination of viability of the duodenum adenocarcinoma tumor cell line, we characterized obtained microspheres and chose calcium as a biogenic ion-strengthening microsphere structure. Among such modified additivities as beta-casein, gelatin, and carbon nanotubes introduced into microspheres, only gelatin showed a pronounced increase in their stability and provided data on the prolonged action of enzyme release from microspheres into tumor cell culture medium during 48 h in an amount of about 70% of the loaded quantity.
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Affiliation(s)
- Liliya R. Bogdanova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Kazan 420111, Russia; (L.R.B.); (A.O.M.); (V.V.S.)
| | - Pavel V. Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia;
| | - Anastasiya O. Makarova
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Kazan 420111, Russia; (L.R.B.); (A.O.M.); (V.V.S.)
| | - Olga S. Zueva
- Department of Physics, Kazan State Power Engineering University, Kazan 420066, Russia;
| | - Vadim V. Salnikov
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Kazan 420111, Russia; (L.R.B.); (A.O.M.); (V.V.S.)
| | - Yuriy F. Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, Kazan 420111, Russia; (L.R.B.); (A.O.M.); (V.V.S.)
- Correspondence: (Yu.F.Z.); (O.N.I.); Tel.: +7-909-306-7117 (Yu.F.Z.); +7-843-233-7855 (O.N.I.)
| | - Olga N. Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan 420008, Russia;
- Correspondence: (Yu.F.Z.); (O.N.I.); Tel.: +7-909-306-7117 (Yu.F.Z.); +7-843-233-7855 (O.N.I.)
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Ulyanova V, Nadyrova A, Dudkina E, Kuznetsova A, Ahmetgalieva A, Faizullin D, Surchenko Y, Novopashina D, Zuev Y, Kuznetsov N, Ilinskaya O. Structural and Functional Differences between Homologous Bacterial Ribonucleases. Int J Mol Sci 2022; 23:ijms23031867. [PMID: 35163789 PMCID: PMC8837141 DOI: 10.3390/ijms23031867] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/28/2022] [Accepted: 02/04/2022] [Indexed: 02/04/2023] Open
Abstract
Small cationic guanyl-preferring ribonucleases (RNases) produced by the Bacillus species share a similar protein tertiary structure with a high degree of amino acid sequence conservation. However, they form dimers that differ in conformation and stability. Here, we have addressed the issues (1) whether the homologous RNases also have distinctions in catalytic activity towards different RNA substrates and interactions with the inhibitor protein barstar, and (2) whether these differences correlate with structural features of the proteins. Circular dichroism and dynamic light scattering assays revealed distinctions in the structures of homologous RNases. The activity levels of the RNases towards natural RNA substrates, as measured spectrometrically by acid-soluble hydrolysis products, were similar and decreased in the row high-polymeric RNA >>> transport RNA > double-stranded RNA. However, stopped flow kinetic studies on model RNA substrates containing the guanosine residue in a hairpin stem or a loop showed that the cleavage rates of these enzymes were different. Moreover, homologous RNases were inhibited by the barstar with diverse efficiency. Therefore, minor changes in structure elements of homologous proteins have a potential to significantly effect molecule stability and functional activities, such as catalysis or ligand binding.
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Affiliation(s)
- Vera Ulyanova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia; (A.N.); (E.D.); (A.A.); (Y.S.); (O.I.)
- Correspondence:
| | - Alsu Nadyrova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia; (A.N.); (E.D.); (A.A.); (Y.S.); (O.I.)
| | - Elena Dudkina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia; (A.N.); (E.D.); (A.A.); (Y.S.); (O.I.)
| | - Aleksandra Kuznetsova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.K.); (D.N.); (N.K.)
| | - Albina Ahmetgalieva
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia; (A.N.); (E.D.); (A.A.); (Y.S.); (O.I.)
| | - Dzhigangir Faizullin
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 420111 Kazan, Russia; (D.F.); (Y.Z.)
| | - Yulia Surchenko
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia; (A.N.); (E.D.); (A.A.); (Y.S.); (O.I.)
| | - Darya Novopashina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.K.); (D.N.); (N.K.)
| | - Yuriy Zuev
- Kazan Institute of Biochemistry and Biophysics, FRC Kazan Scientific Center of RAS, 420111 Kazan, Russia; (D.F.); (Y.Z.)
| | - Nikita Kuznetsov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, 630090 Novosibirsk, Russia; (A.K.); (D.N.); (N.K.)
| | - Olga Ilinskaya
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russia; (A.N.); (E.D.); (A.A.); (Y.S.); (O.I.)
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Bacterial Ribonuclease (Binase) Promotes Decontamination of MDBK Cell Cultures From Bovine Diarrhea Virus. BIONANOSCIENCE 2021. [DOI: 10.1007/s12668-021-00862-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Ulyanova V, Dudkina E, Nadyrova A, Kalashnikov V, Surchenko Y, Ilinskaya O. The Cytotoxicity of RNase-Derived Peptides. Biomolecules 2020; 11:E16. [PMID: 33375305 PMCID: PMC7824363 DOI: 10.3390/biom11010016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 12/27/2022] Open
Abstract
Bacterial ribonuclease binase exhibits a cytotoxic effect on tumor cells possessing certain oncogenes. The aim of this study was to identify the structural parts of the binase molecule that exert cytotoxicity. Out of five designed peptides, the peptides representing the binase regions 21-50 and 74-94 have the highest cytotoxic potential toward human cervical HeLa and breast BT-20 and MCF-7 cancer cells. The peptides B21-50 and B74-94 were not able to enter human lung adenocarcinoma A549 cells, unlike BT-20 cells, explaining their failure to inhibit A549 cell proliferation. The peptide B74-94 shares similarities with epidermal growth factor (EGF), suggesting the peptide's specificity for EGF receptor overexpressed in BT-20 cells. Thus, the binase-derived peptides have the potential of being further developed as tumor-targeting peptides.
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Affiliation(s)
| | - Elena Dudkina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (V.U.); (A.N.); (V.K.); (Y.S.); (O.I.)
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Anti-Influenza Activity of the Ribonuclease Binase: Cellular Targets Detected by Quantitative Proteomics. Int J Mol Sci 2020; 21:ijms21218294. [PMID: 33167434 PMCID: PMC7663932 DOI: 10.3390/ijms21218294] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/29/2020] [Accepted: 11/02/2020] [Indexed: 12/11/2022] Open
Abstract
Unpredictable influenza pandemics, annual epidemics, and sporadic poultry-to-human avian influenza virus infections with high morbidity and mortality rates dictate a need to develop new antiviral approaches. Targeting cellular pathways and processes is a promising antiviral strategy shown to be effective regardless of viral subtypes or viral evolution of drug-resistant variants. Proteomics-based searches provide a tool to reveal the druggable stages of the virus life cycle and to understand the putative antiviral mode of action of the drug(s). Ribonucleases (RNases) of different origins not only demonstrate antiviral effects that are mediated by the direct RNase action on viral and cellular RNAs but can also exert their impact by signal transduction modulation. To our knowledge, studies of the RNase-affected cell proteome have not yet been performed. To reveal cellular targets and explain the mechanisms underlying the antiviral effect employed by the small extra-cellular ribonuclease of Bacillus pumilus (binase) both in vitro and in vivo, qualitative shotgun and quantitative targeted proteomic analyses of the influenza A virus (IAV) H1N1pdm09-infected A549 cells upon binase treatment were performed. We compared proteomes of mock-treated, binase-treated, virus-infected, and virus-infected binase-treated cells to determine the proteins affected by IAV and/or binase. In general, IAV demonstrated a downregulating strategy towards cellular proteins, while binase had an upregulating effect. With the help of bioinformatics approaches, coregulated cellular protein sets were defined and assigned to their biological function; a possible interconnection with the progression of viral infection was conferred. Most of the proteins downregulated by IAV (e.g., AKR1B1, AKR1C1, CCL5, PFN1, RAN, S100A4, etc.) belong to the processes of cellular metabolism, response to stimulus, biological regulation, and cellular localization. Upregulated proteins upon the binase treatment (e.g., AKR1B10, CAP1, HNRNPA2B1, PFN1, PPIA, YWHAB, etc.) are united by the processes of biological regulation, cellular localization, and immune and metabolic processes. The antiviral activity of binase against IAV was expressed by the inversion of virus-induced proteomic changes, resulting in the inhibition of virus-associated processes, including nuclear ribonucleoprotein export (NCL, NPM1, Nup205, and Bax proteins involved) and cytoskeleton remodeling (RDX, PFN1, and TUBB) induced by IAV at the middle stage of single-cycle infection in A549 cells. Modulation of the immune response could be involved as well. Overall, it seems possible that binase exerts its antiviral effects in multiple ways.
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Shah Mahmud R, Efimova MA, Ulyanova V, Ravilov RK, Shuralev EA, Kolpakov A, Ilinskaya O. Bacillus pumilus ribonuclease rescues mice infected by double-stranded RNA-containing reovirus serotype 1. Virus Res 2020; 286:198086. [PMID: 32629086 DOI: 10.1016/j.virusres.2020.198086] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/08/2020] [Accepted: 07/01/2020] [Indexed: 12/27/2022]
Abstract
Reoviruses (respiratory enteric orphan viruses) are nonenveloped viruses with segmented dsRNA genome. Viruses in the family Reoviridae are quite stable in the environment. Recently, they have been identified with various pathologies and physiologic dysfunctions in a wide range of organs and tissues, including the hepatobiliary system, the myocardium, lungs, and endocrine tissues. Although most cases of reovirus infection are mild or subclinical diseases, the prevention measures are currently needed, especially for young children suffering from dehydrating gastroenteritis. To inhibit viral replication, different RNases targeting viral RNA are proposed. Here, we first have shown that RNase from Bacillus pumilus (binase) acts as an antiviral agent at the level of the whole animal organism infected by Mammalian orthoreovirus 1 strain Lang (TL1). The results obtained on the mice model infected with 10 LD50 and 20 LD50 doses of reovirus indicate the restoration of mice physiological parameters under binase treatment at the dose of 50 μg/mouse. Thus, our research supports the relevance of binase as a promising antiviral agent that affects viral RNA.
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Affiliation(s)
- Raihan Shah Mahmud
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation.
| | - Marina A Efimova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation; Kazan State Academy of Veterinary Medicine named after N.E. Bauman, Kazan, Russian Federation; Federal Center for Toxicological, Radiation and Biological Safety, Kazan, Russian Federation; Kazan State Medical Academy - Russian Medical Academy of Continuous Professional Education, Kazan, Russian Federation
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Rustam Kh Ravilov
- Kazan State Academy of Veterinary Medicine named after N.E. Bauman, Kazan, Russian Federation
| | - Eduard A Shuralev
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation; Kazan State Academy of Veterinary Medicine named after N.E. Bauman, Kazan, Russian Federation; Federal Center for Toxicological, Radiation and Biological Safety, Kazan, Russian Federation; Kazan State Medical Academy - Russian Medical Academy of Continuous Professional Education, Kazan, Russian Federation
| | - Aleksey Kolpakov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russian Federation
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Dudkina EV, Ulyanova VV, Ilinskaya ON. Supramolecular Organization As a Factor of Ribonuclease Cytotoxicity. Acta Naturae 2020; 12:24-33. [PMID: 33173594 PMCID: PMC7604891 DOI: 10.32607/actanaturae.11000] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2020] [Accepted: 06/29/2020] [Indexed: 11/28/2022] Open
Abstract
One of the approaches used to eliminate tumor cells is directed destruction/modification of their RNA molecules. In this regard, ribonucleases (RNases) possess a therapeutic potential that remains largely unexplored. It is believed that the biological effects of secreted RNases, namely their antitumor and antiviral properties, derive from their catalytic activity. However, a number of recent studies have challenged the notion that the activity of RNases in the manifestation of selective cytotoxicity towards cancer cells is exclusively an enzymatic one. In this review, we have analyzed available data on the cytotoxic effects of secreted RNases, which are not associated with their catalytic activity, and we have provided evidence that the most important factor in the selective apoptosis-inducing action of RNases is the structural organization of these enzymes, which determines how they interact with cell components. The new idea on the preponderant role of non-catalytic interactions between RNases and cancer cells in the manifestation of selective cytotoxicity will contribute to the development of antitumor RNase-based drugs.
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Affiliation(s)
- E. V. Dudkina
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, 420008 Russia
| | - V. V. Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, 420008 Russia
| | - O. N. Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan, 420008 Russia
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Guillen-Chable F, Rodríguez Corona U, Pereira-Santana A, Bayona A, Rodríguez-Zapata LC, Aquino C, Šebestová L, Vitale N, Hozak P, Castano E. Fibrillarin Ribonuclease Activity is Dependent on the GAR Domain and Modulated by Phospholipids. Cells 2020; 9:cells9051143. [PMID: 32384686 PMCID: PMC7290794 DOI: 10.3390/cells9051143] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/24/2020] [Accepted: 04/29/2020] [Indexed: 12/16/2022] Open
Abstract
Fibrillarin is a highly conserved nucleolar methyltransferase responsible for ribosomal RNA methylation across evolution from Archaea to humans. It has been reported that fibrillarin is involved in the methylation of histone H2A in nucleoli and other processes, including viral progression, cellular stress, nuclear shape, and cell cycle progression. We show that fibrillarin has an additional activity as a ribonuclease. The activity is affected by phosphoinositides and phosphatidic acid and insensitive to ribonuclease inhibitors. Furthermore, the presence of phosphatidic acid releases the fibrillarin-U3 snoRNA complex. We show that the ribonuclease activity localizes to the GAR (glycine/arginine-rich) domain conserved in a small group of RNA interacting proteins. The introduction of the GAR domain occurred in evolution in the transition from archaea to eukaryotic cells. The interaction of this domain with phospholipids may allow a phase separation of this protein in nucleoli.
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Affiliation(s)
- Francisco Guillen-Chable
- Biochemistry and Molecular Plant Biology Department, Centro de Investigación Científica de Yucatán, A.C. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida C.P. 97200, Yucatán, Mexico; (F.G.-C.); (U.R.C.); (A.B.); (C.A.)
| | - Ulises Rodríguez Corona
- Biochemistry and Molecular Plant Biology Department, Centro de Investigación Científica de Yucatán, A.C. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida C.P. 97200, Yucatán, Mexico; (F.G.-C.); (U.R.C.); (A.B.); (C.A.)
| | - Alejandro Pereira-Santana
- Industrial Biotechnology Department, Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C., Camino Arenero 1227, el Bajio, Zapopan C.P. 45019, Jalisco, Mexico;
- Dirección de Cátedras, Consejo Nacional de Ciencia y Tecnología, Av. Insurgentes Sur 1582, Alcaldia Benito Juarez C.P. 03940, Ciudad de Mexico, Mexico
| | - Andrea Bayona
- Biochemistry and Molecular Plant Biology Department, Centro de Investigación Científica de Yucatán, A.C. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida C.P. 97200, Yucatán, Mexico; (F.G.-C.); (U.R.C.); (A.B.); (C.A.)
| | - Luis Carlos Rodríguez-Zapata
- Biotechnology Department, Centro de Investigación Científica de Yucatán, A.C. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida C.P. 97200, Yucatan, Mexico;
| | - Cecilia Aquino
- Biochemistry and Molecular Plant Biology Department, Centro de Investigación Científica de Yucatán, A.C. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida C.P. 97200, Yucatán, Mexico; (F.G.-C.); (U.R.C.); (A.B.); (C.A.)
| | - Lenka Šebestová
- Department of Biology of the Cell Nucleus, Institute of Molecular Genetics of the CAS, v.v.i., Videnska 1083, 142 20 Prague, Czech Republic; (L.Š.); (P.H.)
- Faculty of Science, Charles University, Albertov 6, 128 00 Prague, Czech Republic
| | - Nicolas Vitale
- Institute of Celullar and Integrative Neuroscience (INCI), UPR-3212 The French National Centre for Scientific Research & University of Strasbourg, 67000 Strasbourg, France;
| | - Pavel Hozak
- Department of Biology of the Cell Nucleus, Institute of Molecular Genetics of the CAS, v.v.i., Videnska 1083, 142 20 Prague, Czech Republic; (L.Š.); (P.H.)
| | - Enrique Castano
- Biochemistry and Molecular Plant Biology Department, Centro de Investigación Científica de Yucatán, A.C. Calle 43 No. 130, Colonia Chuburná de Hidalgo, Mérida C.P. 97200, Yucatán, Mexico; (F.G.-C.); (U.R.C.); (A.B.); (C.A.)
- Correspondence:
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12
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Zelenikhin PV, Ead Mohamed IS, Nadyrova AI, Sirotkina AA, Ulyanova VV, Mironova NL, Mitkevich VA, Makarov AA, Zenkova MA, Ilinskaya ON. Bacillus pumilus Ribonuclease Inhibits Migration of Human Duodenum Adenocarcinoma HuTu 80 Cells. Mol Biol 2020. [DOI: 10.1134/s0026893320010173] [Citation(s) in RCA: 4] [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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Gotte G, Menegazzi M. Biological Activities of Secretory RNases: Focus on Their Oligomerization to Design Antitumor Drugs. Front Immunol 2019; 10:2626. [PMID: 31849926 PMCID: PMC6901985 DOI: 10.3389/fimmu.2019.02626] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/22/2019] [Indexed: 12/11/2022] Open
Abstract
Ribonucleases (RNases) are a large number of enzymes gathered into different bacterial or eukaryotic superfamilies. Bovine pancreatic RNase A, bovine seminal BS-RNase, human pancreatic RNase 1, angiogenin (RNase 5), and amphibian onconase belong to the pancreatic type superfamily, while binase and barnase are in the bacterial RNase N1/T1 family. In physiological conditions, most RNases secreted in the extracellular space counteract the undesired effects of extracellular RNAs and become protective against infections. Instead, if they enter the cell, RNases can digest intracellular RNAs, becoming cytotoxic and having advantageous effects against malignant cells. Their biological activities have been investigated either in vitro, toward a number of different cancer cell lines, or in some cases in vivo to test their potential therapeutic use. However, immunogenicity or other undesired effects have sometimes been associated with their action. Nevertheless, the use of RNases in therapy remains an appealing strategy against some still incurable tumors, such as mesothelioma, melanoma, or pancreatic cancer. The RNase inhibitor (RI) present inside almost all cells is the most efficacious sentry to counteract the ribonucleolytic action against intracellular RNAs because it forms a tight, irreversible and enzymatically inactive complex with many monomeric RNases. Therefore, dimerization or multimerization could represent a useful strategy for RNases to exert a remarkable cytotoxic activity by evading the interaction with RI by steric hindrance. Indeed, the majority of the mentioned RNases can hetero-dimerize with antibody derivatives, or even homo-dimerize or multimerize, spontaneously or artificially. This can occur through weak interactions or upon introducing covalent bonds. Immuno-RNases, in particular, are fusion proteins representing promising drugs by combining high target specificity with easy delivery in tumors. The results concerning the biological features of many RNases reported in the literature are described and discussed in this review. Furthermore, the activities displayed by some RNases forming oligomeric complexes, the mechanisms driving toward these supramolecular structures, and the biological rebounds connected are analyzed. These aspects are offered with the perspective to suggest possible efficacious therapeutic applications for RNases oligomeric derivatives that could contemporarily lack, or strongly reduce, immunogenicity and other undesired side-effects.
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Affiliation(s)
- Giovanni Gotte
- Biological Chemistry Section, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
| | - Marta Menegazzi
- Biological Chemistry Section, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Verona, Italy
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Khojaewa V, Lopatin O, Zelenikhin P, Ilinskaya O. Zeolites as Carriers of Antitumor Ribonuclease Binase. Front Pharmacol 2019; 10:442. [PMID: 31130858 PMCID: PMC6509225 DOI: 10.3389/fphar.2019.00442] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Accepted: 04/08/2019] [Indexed: 12/02/2022] Open
Abstract
Natural and synthetic zeolites have many applications in biomedicine and nutrition. Due to its properties, zeolites can absorb therapeutically active proteins and release them under physiological conditions. In this study we tested the clinoptilolite, chabazite, and natrolite ability to be loaded by antitumor ribonuclease binase and the cytotoxicity of the obtained complexes. We found the optimal conditions for binase loading into zeolites and established the dynamic of its release. Cytotoxic effects of zeolite-binase complexes toward colorectal cancer Caco2 cells were characterized after 24 and 48 h of incubation with cells using MTT-test. Zeolites were toxic by itselfs and reduced cells viability by 30% (clinoptilolite), 40% (chabazite), and 70% (natrolite) after 48 h of incubation. Binase complexes with clinoptilolite as well as chabazite always demonstrated enhanced toxicity (up to 57 and 60% for clinoptilolite and chabazite, respectively) in comparison with binase and zeolites separately. Our results contribute to the perspective development of binase-based complexes for therapy of colorectal cancer for or the treatment of malignant skin neoplasms where the complexes can be used in pasty form.
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Affiliation(s)
- Vera Khojaewa
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Oleg Lopatin
- Department of Mineralogy and Lithology, Institute of Geology and Petroleum Technologies, Kazan Federal University, Kazan, Russia
| | - Pavel Zelenikhin
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Olga Ilinskaya
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
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Ilinskaya O, Ulyanova V, Lisevich I, Dudkina E, Zakharchenko N, Kusova A, Faizullin D, Zuev Y. The Native Monomer of Bacillus Pumilus Ribonuclease Does Not Exist Extracellularly. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4837623. [PMID: 30402481 PMCID: PMC6196983 DOI: 10.1155/2018/4837623] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/18/2018] [Indexed: 01/06/2023]
Abstract
Supported by crystallography studies, secreted ribonuclease of Bacillus pumilus (binase) has long been considered to be monomeric in form. Recent evidence obtained using native polyacrylamide gel electrophoresis and size-exclusion chromatography suggests that binase is in fact dimeric. To eliminate ambiguity and contradictions in the data we have measured conformational changes, hypochromic effect, and hydrodynamic radius of binase. The immutability of binase secondary structure upon transition from low to high protein concentration was registered, suggesting the binase dimerization immediately after translocation through the cell membrane and leading to detection of binase dimers only in the culture fluid regardless of ribonuclease concentration. Our results made it necessary to take a fresh look at the binase stability and cytotoxicity towards virus-infected or tumor cells.
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Affiliation(s)
- Olga Ilinskaya
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Vera Ulyanova
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Irina Lisevich
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Elena Dudkina
- Department of Microbiology, Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, Kazan 420008, Russia
| | - Nataliya Zakharchenko
- Kazan Institute of Biochemistry and Biophysics of FRC Kazan Scientific Center of RAS, Kazan 420008, Russia
| | - Alexandra Kusova
- Kazan Institute of Biochemistry and Biophysics of FRC Kazan Scientific Center of RAS, Kazan 420008, Russia
| | - Dzhigangir Faizullin
- Kazan Institute of Biochemistry and Biophysics of FRC Kazan Scientific Center of RAS, Kazan 420008, Russia
| | - Yuriy Zuev
- Kazan Institute of Biochemistry and Biophysics of FRC Kazan Scientific Center of RAS, Kazan 420008, Russia
- Kazan State Power Engineering University, Kazan 420066, Russia
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Shah Mahmud R, Mostafa A, Müller C, Kanrai P, Ulyanova V, Sokurenko Y, Dzieciolowski J, Kuznetsova I, Ilinskaya O, Pleschka S. Bacterial ribonuclease binase exerts an intra-cellular anti-viral mode of action targeting viral RNAs in influenza a virus-infected MDCK-II cells. Virol J 2018; 15:5. [PMID: 29304825 PMCID: PMC5756404 DOI: 10.1186/s12985-017-0915-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 12/19/2017] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Influenza is a severe contagious disease especially in children, elderly and immunocompromised patients. Beside vaccination, the discovery of new anti-viral agents represents an important strategy to encounter seasonal and pandemic influenza A virus (IAV) strains. The bacterial extra-cellular ribonuclease binase is a well-studied RNase from Bacillus pumilus. Treatment with binase was shown to improve survival of laboratory animals infected with different RNA viruses. Although binase reduced IAV titer in vitro and in vivo, the mode of action (MOA) of binase against IAV at the molecular level has yet not been studied in depth and remains elusive. METHODS To analyze whether binase impairs virus replication by direct interaction with the viral particle we applied a hemagglutination inhibition assay and monitored the integrity of the viral RNA within the virus particle by RT-PCR. Furthermore, we used Western blot and confocal microscopy analysis to study whether binase can internalize into MDCK-II cells. By primer extension we examined the effect of binase on the integrity of viral RNAs within the cells and using a mini-genome system we explored the effect of binase on the viral expression. RESULTS We show that (i) binase does not to attack IAV particle-protected viral RNA, (ii) internalized binase could be detected within the cytosol of MDCK-II cells and that (iii) binase impairs IAV replication by specifically degrading viral RNA species within the infected MDCK-II cells without obvious effect on cellular mRNAs. CONCLUSION Our data provide novel evidence suggesting that binase is a potential anti-viral agent with specific intra-cellular MOA.
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Affiliation(s)
- Raihan Shah Mahmud
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Ahmed Mostafa
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
- Center of Scientific Excellence for Influenza Viruses, National Research Center (NRC), El-Buhouth Street 87, 12311 Dokki, Cairo, Egypt
| | - Christin Müller
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
| | - Pumaree Kanrai
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
- Present address: Department I - Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Ludwigstrasse 43, 61231, Bad Nauheim, Germany
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Yulia Sokurenko
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Julia Dzieciolowski
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
- Present address: Department of Biochemistry and Molecular Biology, Institute of Nutritional Science, Justus Liebig University, Heinrich-Buff-Ring 26-32, 35392, Giessen, Germany
| | - Irina Kuznetsova
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlyovskaya Street 18, 420008, Kazan, Russia
| | - Stephan Pleschka
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392, Giessen, Germany.
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Khodzhaeva V, Makeeva A, Ulyanova V, Zelenikhin P, Evtugyn V, Hardt M, Rozhina E, Lvov Y, Fakhrullin R, Ilinskaya O. Binase Immobilized on Halloysite Nanotubes Exerts Enhanced Cytotoxicity toward Human Colon Adenocarcinoma Cells. Front Pharmacol 2017; 8:631. [PMID: 28955235 PMCID: PMC5600959 DOI: 10.3389/fphar.2017.00631] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2017] [Accepted: 08/28/2017] [Indexed: 01/02/2023] Open
Abstract
Many ribonucleases (RNases) are considered as promising tools for antitumor therapy because of their selective cytotoxicity toward cancer cells. Binase, the RNase from Bacillus pumilus, triggers apoptotic response in cancer cells expressing RAS oncogene which is mutated in a large percentage of prevalent and deadly malignancies including colorectal cancer. The specific antitumor effect of binase toward RAS-transformed cells is due to its direct binding of RAS protein and inhibition of downstream signaling. However, the delivery of proteins to the intestine is complicated by their degradation in the digestive tract and subsequent loss of therapeutic activity. Therefore, the search of new systems for effective delivery of therapeutic proteins is an actual task. This study is aimed to the investigation of antitumor effect of binase immobilized on natural halloysite nanotubes (HNTs). Here, we have developed the method of binase immobilization on HNTs and optimized the conditions for the enzyme loading and release (i); we have found the non-toxic concentration of pure HNTs which allows to distinguish HNTs- and binase-induced cytotoxic effects (ii); using dark-field and fluorescent microscopy we have proved the absorption of binase-loaded HNTs on the cell surface (iii) and demonstrated that binase-halloysite nanoformulations possessed twice enhanced cytotoxicity toward tumor colon cells as compared to the cytotoxicity of binase itself (iv). The enhanced antitumor activity of biocompatible binase-HNTs complex confirms the advisability of its future development for clinical practice.
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Affiliation(s)
- Vera Khodzhaeva
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Anna Makeeva
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Pavel Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Vladimir Evtugyn
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Martin Hardt
- Imaging Unit, Biomedical Research Center Seltersberg, Justus Liebig University GiessenGiessen, Germany
| | - Elvira Rozhina
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
| | - Yuri Lvov
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
- Institute for Micromanufacturing, Louisiana Tech University, RustonLA, United States
| | - Rawil Fakhrullin
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
- Institute for Micromanufacturing, Louisiana Tech University, RustonLA, United States
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal UniversityKazan, Russia
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18
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Shah Mahmud R, Müller C, Romanova Y, Mostafa A, Ulyanova V, Pleschka S, Ilinskaya O. Ribonuclease from Bacillus Acts as an Antiviral Agent against Negative- and Positive-Sense Single Stranded Human Respiratory RNA Viruses. BIOMED RESEARCH INTERNATIONAL 2017; 2017:5279065. [PMID: 28546965 PMCID: PMC5435908 DOI: 10.1155/2017/5279065] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Accepted: 04/04/2017] [Indexed: 01/17/2023]
Abstract
Bacillus pumilus ribonuclease (binase) was shown to be a promising antiviral agent in animal models and cell cultures. However, the mode of its antiviral action remains unknown. To assess the binase effect on intracellular viral RNA we have selected single stranded negative- and positive-sense RNA viruses, influenza virus, and rhinovirus, respectively, which annually cause respiratory illnesses and are characterized by high contagious nature, mutation rate, and antigen variability. We have shown that binase exerts an antiviral effect on both viruses at the same concentration, which does not alter the spectrum of A549 cellular proteins and expression of housekeeping genes. The titers of influenza A (H1N1pdm) virus and human rhinovirus serotype 1A were reduced by 40% and 65%, respectively. A preincubation of influenza virus with binase before infection significantly reduced viral titer after single-cycle replication of the virus. Using influenza A virus mini genome system we showed that binase reduced GFP reporter signaling indicating a binase action on the expression of viral mRNA. Binase reduced the level of H1N1pdm viral NP mRNA accumulation in A549 cells by 20%. Since the viral mRNA is a possible target for binase this agent could be potentially applied in the antiviral therapy against both negative- and positive-sense RNA viruses.
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Affiliation(s)
- Raihan Shah Mahmud
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Street 18, Kazan 420008, Russia
| | - Christin Müller
- Institute of Medical Virology, Justus Liebig University, Schubert Street 81, 35392 Giessen, Germany
| | - Yulia Romanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Street 18, Kazan 420008, Russia
| | - Ahmed Mostafa
- Institute of Medical Virology, Justus Liebig University, Schubert Street 81, 35392 Giessen, Germany
- Center of Scientific Excellence for Influenza Viruses, National Research Centre (NRC), El-Buhouth Street 87, Dokki, Cairo 12311, Egypt
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Street 18, Kazan 420008, Russia
| | - Stephan Pleschka
- Institute of Medical Virology, Justus Liebig University, Schubert Street 81, 35392 Giessen, Germany
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Street 18, Kazan 420008, Russia
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20
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Rodriguez-Corona U, Pereira-Santana A, Sobol M, Rodriguez-Zapata LC, Hozak P, Castano E. Novel Ribonuclease Activity Differs between Fibrillarins from Arabidopsis thaliana. FRONTIERS IN PLANT SCIENCE 2017; 8:1878. [PMID: 29163603 PMCID: PMC5674935 DOI: 10.3389/fpls.2017.01878] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 10/16/2017] [Indexed: 05/09/2023]
Abstract
Fibrillarin is one of the most important nucleolar proteins that have been shown as essential for life. Fibrillarin localizes primarily at the periphery between fibrillar center and dense fibrillar component as well as in Cajal bodies. In most plants there are at least two different genes for fibrillarin. In Arabidopsis thaliana both genes show high level of expression in transcriptionally active cells. Here, we focus on two important differences between A. thaliana fibrillarins. First and most relevant is the enzymatic activity by AtFib2. The AtFib2 shows a novel ribonuclease activity that is not seen with AtFib1. Second is a difference in the ability to interact with phosphoinositides and phosphatidic acid between both proteins. We also show that the novel ribonuclease activity as well as the phospholipid binding region of fibrillarin is confine to the GAR domain. The ribonuclease activity of fibrillarin reveals in this study represents a new role for this protein in rRNA processing.
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Affiliation(s)
- Ulises Rodriguez-Corona
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Mérida, Mexico
| | - Alejandro Pereira-Santana
- Biosystematics Group, Department of Plant Sciences, Wageningen University and Research, Wageningen, Netherlands
| | - Margarita Sobol
- Department of Biology of the Cell Nucleus, Institute of Molecular Genetics of the Academy of Sciences of the Czech Republic, Prague, Czechia
| | | | - Pavel Hozak
- Department of Biology of the Cell Nucleus, Institute of Molecular Genetics of the Academy of Sciences of the Czech Republic, Prague, Czechia
| | - Enrique Castano
- Unidad de Bioquímica y Biología Molecular de Plantas, Centro de Investigación Científica de Yucatán, Mérida, Mexico
- *Correspondence: Enrique Castano,
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Müller C, Ulyanova V, Ilinskaya O, Pleschka S, Shah Mahmud R. A Novel Antiviral Strategy against MERS-CoV and HCoV-229E Using Binase to Target Viral Genome Replication. BIONANOSCIENCE 2016; 7:294-299. [PMID: 32219056 PMCID: PMC7090624 DOI: 10.1007/s12668-016-0341-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
RNA viruses cause most of the dangerous communicable diseases. Due to their high mutation rates, RNA viruses quickly evade selective pressures and can adapt to a new host. Therefore, new antiviral approaches are urgently needed, which target more than one specific virus variant and which would optimally prevent development of viral resistance. Among the family of coronaviruses (CoV), several human pathogenic strains (HCoV) are known to cause respiratory diseases and are implied in enteric diseases. While most strains contribute to common cold-like illnesses, others lead to severe infections. One of these viruses is the newly emerged (2012), highly pathogenic Middle East respiratory syndrome coronavirus (MERS-CoV) of zoonotic origin. MERS-CoV causes a severe respiratory infection with a high mortality rate of 35 %. There is no specific treatment or infection prevention available. Here, we show that the bacterial ribonuclease Binase is able to inhibit the replication of MERS-CoV and of the low-pathogenic human coronavirus 229E (HCoV-229E) in cell culture. We demonstrate that at non-toxic concentrations, Binase decreased the titers of MERS-CoV and HCoV-229E. On a molecular level, Binase treatment reduced (i) the viral subgenomic RNAs and (ii) the viral nucleocapsidprotein (N) and non-structural protein 13 (nsp13) accumulation. Furthermore, we show that the quantity of the replication/transcription complexes within the infected cells is diminished. Thus, the data obtained might allow further development of new anti-coronaviral approaches affecting viral replication, independent of the specific virus strain.
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Affiliation(s)
- Christin Müller
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392 Giessen, Germany
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya Str, Kazan, 420008 Russia
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya Str, Kazan, 420008 Russia
| | - Stephan Pleschka
- Institute of Medical Virology, Justus Liebig University, Schubertstrasse 81, 35392 Giessen, Germany
| | - Raihan Shah Mahmud
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 18 Kremlyovskaya Str, Kazan, 420008 Russia
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Ulyanova V, Shah Mahmud R, Malanin S, Vershinina V, Ilinskaya O. Improving Bacillus Altitudinis B-388 Genome Scaffolding Using Mate-Pair Next-Generation Sequencing. BIONANOSCIENCE 2016. [DOI: 10.1007/s12668-016-0304-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Sokurenko Y, Nadyrova A, Ulyanova V, Ilinskaya O. Extracellular Ribonuclease from Bacillus licheniformis (Balifase), a New Member of the N1/T1 RNase Superfamily. BIOMED RESEARCH INTERNATIONAL 2016; 2016:4239375. [PMID: 27656652 PMCID: PMC5021464 DOI: 10.1155/2016/4239375] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/02/2016] [Accepted: 07/25/2016] [Indexed: 11/17/2022]
Abstract
The N1/T1 RNase superfamily comprises enzymes with well-established antitumor effects, such as ribotoxins secreted by fungi, primarily by Aspergillus and Penicillium species, and bacterial RNase secreted by B. pumilus (binase) and B. amyloliquefaciens (barnase). RNase is regarded as an alternative to classical chemotherapeutic agents due to its selective cytotoxicity towards tumor cells. New RNase with a high degree of structural similarity with binase (73%) and barnase (74%) was isolated and purified from Bacillus licheniformis (balifase, calculated molecular weight 12421.9 Da, pI 8.91). The protein sample with enzymatic activity of 1.5 × 106 units/A280 was obtained. The physicochemical properties of balifase are similar to those of barnase. However, in terms of its gene organization and promoter activity, balifase is closer to binase. The unique feature of balifase gene organization consists in the fact that genes of RNase and its inhibitor are located in one operon. Similarly to biosynthesis of binase, balifase synthesis is induced under phosphate starvation; however, in contrast to binase, balifase does not form dimers under natural conditions. We propose that the highest stability of balifase among analyzed RNase types allows the protein to retain its structure without oligomerization.
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Affiliation(s)
- Yulia Sokurenko
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
| | - Alsu Nadyrova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
| | - Vera Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
| | - Olga Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kremlevskaya Str. 18, Kazan 420008, Russia
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