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Sounbuli K, Alekseeva LA, Markov OV, Mironova NL. A Comparative Study of Different Protocols for Isolation of Murine Neutrophils from Bone Marrow and Spleen. Int J Mol Sci 2023; 24:17273. [PMID: 38139101 PMCID: PMC10743699 DOI: 10.3390/ijms242417273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Neutrophils are considered as the main player in innate immunity. In the last few years, it has been shown that they are involved in different physiological conditions and diseases. However, progress in the field of neutrophil biology is relatively slow due to existing difficulties in neutrophil isolation and maintenance in culture. Here we compare four protocols based on density-gradient and immunomagnetic methods for isolation of murine neutrophils from bone marrow and spleen. Neutrophil isolation was performed using Ficoll 1.077/1.119 g/mL density gradient, Ficoll 1.083/1.090/1.110 g/mL density gradient and immunomagnetic method of negative and positive selection. The different protocols were compared with respect to sample purity, cell viability, yield, and cost. The functionality of isolated neutrophils was checked by NETosis analysis and neutrophil oxidative burst test. Obtained data revealed that given purity/yield/viability/cost ratio the protocol based on cell centrifugation on Ficoll 1.077/1.119 g/mL density gradient is recommended for isolation of neutrophils from bone marrow, whereas immunomagnetic method of positive selection using Dynabeads is recommended for isolation of splenic neutrophils.
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Affiliation(s)
- Khetam Sounbuli
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
- Faculty of Natural Sciences, Novosibirsk State University, 630090 Novosibirsk, Russia
| | - Ludmila A. Alekseeva
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
| | - Oleg V. Markov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
| | - Nadezhda L. Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave. 8, 630090 Novosibirsk, Russia; (K.S.); (L.A.A.); (O.V.M.)
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2
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Filatova AA, Alekseeva LA, Savin IA, Sen'kova AV, Zenkova MA, Mironova NL. The Effect of Cell-Free DNA from Blood Serum of Mice with Metastatic Melanoma on Enhancement of Oncogenic Properties of Melanoma Cells. Biochemistry (Mosc) 2023; 88:995-1007. [PMID: 37751869 DOI: 10.1134/s0006297923070118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/13/2023] [Accepted: 03/13/2023] [Indexed: 09/28/2023]
Abstract
Currently, a significant increase in the levels of circulating cell-free DNA (cfDNA) in the blood of patients is considered as a generally recognized marker of the development of oncological diseases. Although the tumor-associated cfDNA has been well studied, its biological functions remain unclear. In this work, we investigated the effect of cfDNA isolated from the blood serum of the mice with B16-F10 metastatic melanoma on the properties of the B16-F10 melanoma cells in vitro. It was found that the profile of cfDNA isolated from the blood serum of mice with melanoma differs significantly from the cfDNA isolated from the blood serum of healthy mice, and is similar to the genomic DNA of B16 cells with regards to abundance of oncogenes and mobile genetic elements (MGE). It was shown that the cfDNA of mice with melanoma penetrated into B16 cells, resulting in the increase in abundance of oncogenes and MGE fragments, and caused 5-fold increase of the mRNA level of the secreted DNase Dnase1l3 and a slight increase of the mRNA level of the Jun, Fos, Ras, and Myc oncogenes. cfDNA of the healthy mice caused increase of the mRNA level of intracellular regulatory DNase EndoG and 4-fold increase of the mRNA level of Fos and Ras oncogenes, which are well-known triggers of a large number of signal cascades, from apoptosis inhibition to increased tumor cell proliferation. Thus, it is obvious that the circulating cfDNA of tumor origin is able to penetrate into the cells and, despite the fact that no changes were found in the level of viability and migration activity of the tumor cells, cfDNA, even with a single exposure, can cause changes at the cellular level that increase oncogenicity of the recipient cells.
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Affiliation(s)
- Alina A Filatova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
- Novosibirsk State University, Novosibirsk, 630090, Russia
| | - Ludmila A Alekseeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
| | - Innokenty A Savin
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
| | - Aleksandra V Sen'kova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
| | - Marina A Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
| | - Nadezhda L Mironova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia.
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3
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Markov OV, Sen’kova AV, Mohamed IS, Shmendel EV, Maslov MA, Oshchepkova AL, Brenner EV, Mironova NL, Zenkova MA. Dendritic Cell-Derived Artificial Microvesicles Inhibit RLS 40 Lymphosarcoma Growth in Mice via Stimulation of Th1/Th17 Immune Response. Pharmaceutics 2022; 14:pharmaceutics14112542. [PMID: 36432733 PMCID: PMC9696603 DOI: 10.3390/pharmaceutics14112542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/23/2022] Open
Abstract
Cell-free antitumor vaccines represent a promising approach to immunotherapy of cancer. Here, we compare the antitumor potential of cell-free vaccines based on microvesicles derived from dendritic cells (DCs) with DC- and cationic-liposome-based vaccines using a murine model of drug-resistant lymphosarcoma RLS40 in vivo. The vaccines were the following: microvesicle vaccines—cytochalasin B-induced membrane vesicles (CIMVs) obtained from DCs loaded with total tumor RNA using cholesterol/spermine-containing cationic liposomes L or mannosylated liposomes ML; DC vaccines—murine DCs loaded with total tumor-derived RNA using the same liposomes; and liposomal vaccines—lipoplexes of total tumor-derived RNA with liposomes L or ML. Being non-hepatotoxic, CIMV- and DC-based vaccines administered subcutaneously exhibited comparable potential to stimulate highly efficient antitumor CTLs in vivo, whereas liposomal vaccines were 25% weaker CTL inducers. Nevertheless, the antitumor efficiencies of the different types of the vaccines were similar: sizes of tumor nodes and the number of liver metastases were significantly decreased, regardless of the vaccine type. Notably, the booster vaccination did not improve the overall antitumor efficacy of the vaccines under the study. CIMV- and DC- based vaccines more efficiently than liposome-based ones decreased mitotic activity of tumor cells and induced their apoptosis, stimulated accumulation of neutrophil inflammatory infiltration in tumor tissue, and had a more pronounced immunomodulatory activity toward the spleen and thymus. Administration of CIMV-, DC-, and liposome-based vaccines resulted in activation of Th1/Th17 cells as well as the induction of positive immune checkpoint 4-1BBL and downregulation of suppressive immune checkpoints in a raw PD-1 >>> TIGIT > CTLA4 > TIM3. We demonstrated that cell-free CIMV-based vaccines exhibited superior antitumor and antimetastatic activity in a tumor model in vivo. The obtained results can be considered as the basis for developing novel strategies for oncoimmunotherapy.
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Affiliation(s)
- Oleg V. Markov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva Ave. 8, 630090 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-(383)-363-51-61
| | - Aleksandra V. Sen’kova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva Ave. 8, 630090 Novosibirsk, Russia
| | - Islam S. Mohamed
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva Ave. 8, 630090 Novosibirsk, Russia
| | - Elena V. Shmendel
- M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA—Russian Technological University, Vernadskogo Ave. 86, 119571 Moscow, Russia
| | - Mikhail A. Maslov
- M.V. Lomonosov Institute of Fine Chemical Technologies, MIREA—Russian Technological University, Vernadskogo Ave. 86, 119571 Moscow, Russia
| | - Anastasiya L. Oshchepkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva Ave. 8, 630090 Novosibirsk, Russia
| | - Evgeniy V. Brenner
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva Ave. 8, 630090 Novosibirsk, Russia
| | - Nadezhda L. Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva Ave. 8, 630090 Novosibirsk, Russia
| | - Marina A. Zenkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentieva Ave. 8, 630090 Novosibirsk, Russia
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Kupryushkin MS, Filatov AV, Mironova NL, Patutina OA, Chernikov IV, Chernolovskaya EL, Zenkova MA, Pyshnyi DV, Stetsenko DA, Altman S, Vlassov VV. Antisense oligonucleotide gapmers containing phosphoryl guanidine groups reverse MDR1-mediated multiple drug resistance of tumor cells. Mol Ther Nucleic Acids 2022; 27:211-226. [PMID: 34976439 PMCID: PMC8693280 DOI: 10.1016/j.omtn.2021.11.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Accepted: 11/28/2021] [Indexed: 10/26/2022]
Abstract
Antisense gapmer oligonucleotides containing phosphoryl guanidine (PG) groups, e.g., 1,3-dimethylimidazolidin-2-imine, at three to five internucleotidic positions adjacent to the 3' and 5' ends were prepared via the Staudinger chemistry, which is compatible with conditions of standard automated solid-phase phosphoramidite synthesis for phosphodiester and, notably, phosphorothioate linkages, and allows one to design a variety of gapmeric structures with alternating linkages, and deoxyribose or 2'-O-methylribose backbone. PG modifications increased nuclease resistance in serum-containing medium for more than 21 days. Replacing two internucleotidic phosphates by PG groups in phosphorothioate-modified oligonucleotides did not decrease their cellular uptake in the absence of lipid carriers. Increasing the number of PG groups from two to seven per oligonucleotide reduced their ability to enter the cells in the carrier-free mode. Cationic liposomes provided similar delivery efficiency of both partially PG-modified and unmodified oligonucleotides. PG-gapmers were designed containing three to four PG groups at both wings and a central "window" of seven deoxynucleotides with either phosphodiester or phosphorothioate linkages targeted to MDR1 mRNA providing multiple drug resistance of tumor cells. Gapmers efficiently silenced MDR1 mRNA and restored the sensitivity of tumor cells to chemotherapeutics. Thus, PG-gapmers can be considered as novel, promising types of antisense oligonucleotides for targeting biologically relevant RNAs.
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Affiliation(s)
- Maxim S Kupryushkin
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Anton V Filatov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Nadezhda L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Olga A Patutina
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Ivan V Chernikov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Elena L Chernolovskaya
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Marina A Zenkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Dmitrii V Pyshnyi
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
| | - Dmitry A Stetsenko
- Department of Physics, Novosibirsk State University, Pirogov Str. 2, Novosibirsk 630090, Russia.,Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Lavrentiev Ave. 10, Novosibirsk 630090, Russia
| | - Sidney Altman
- Department of Molecular, Cellular and Developmental Biology, Yale University, New Haven, CT 06520, USA.,Life Sciences, Arizona State University, Tempe, AZ 85281, USA.,Montreal Clinical Research Institute, Montreal QC H2W 1R7, Canada
| | - Valentin V Vlassov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Ave., 8, Novosibirsk 630090, Russia
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5
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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 (Mosk) 2020; 54:146-152. [PMID: 32163398 DOI: 10.31857/s0026898420010176] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Accepted: 08/27/2019] [Indexed: 11/24/2022]
Abstract
Migration of cancer cells from the primary tumor site to nearby tissues is the starting point of the metastatic process. The invasive properties of cells are especially important for carcinomas, since tumor cells need to overcome the basement membrane and go beyond its boundaries to the underlying tissues. Substances that reduce the invasive ability of malignant cells are promising as antimetastatic agents. In the present work, the possibility of inhibiting the ability of different cancer cell lines to migrate under the influence of the Bacillus pumilus ribonuclease (binase) was analyzed using the scratch-wound assay. It was established that binase at non-toxic concentrations (10 μg/mL) reliably suppressed the migratory ability of HuTu 80 human duodenum adenocarcinoma cells incubated with RNase for 48-72 h. The antimetastatic potential of binase is confirmed by molecular modeling data demonstrating the ability of binase to inhibit cellular metalloproteinases that determine the migration of tumor cells.
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Affiliation(s)
- P V Zelenikhin
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, 420008 Russia
| | - I S Ead Mohamed
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia.,Novosibirsk State University, Novosibirsk, 630090 Russia
| | - A I Nadyrova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, 420008 Russia
| | - A A Sirotkina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, 420008 Russia
| | - V V Ulyanova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, 420008 Russia
| | - N L Mironova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
| | - V A Mitkevich
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia.,
| | - A A Makarov
- Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Moscow, 119991 Russia
| | - M A Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
| | - O N Ilinskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, 420008 Russia
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6
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Alekseeva LA, Sen'kova AV, Zenkova MA, Mironova NL. Targeting Circulating SINEs and LINEs with DNase I Provides Metastases Inhibition in Experimental Tumor Models. Mol Ther Nucleic Acids 2020; 20:50-61. [PMID: 32146418 PMCID: PMC7058713 DOI: 10.1016/j.omtn.2020.01.035] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 12/16/2019] [Accepted: 01/23/2020] [Indexed: 12/22/2022]
Abstract
Tumor-associated cell-free DNAs (cfDNAs) are found to play some important roles at different stages of tumor progression; they are involved in the transformation of normal cells and contribute to tumor migration and invasion. DNase I is considered a promising cancer cure, due to its ability to degrade cfDNAs. Previous studies using murine tumor models have proved the high anti-metastatic potential of DNase I. Later circulating cfDNAs, especially tandem repeats associated with short-interspersed nuclear elements (SINEs) and long-interspersed nuclear elements (LINEs), have been found to be the enzyme's main molecular targets. Here, using Lewis lung carcinoma, melanoma B16, and lymphosarcoma RLS40 murine tumor models, we reveal that tumor progression is accompanied by an increase in the level of SINE and LINEs in the pool of circulating cfDNAs. Treatment with DNase I decreased in the number and area of metastases by factor 3-10, and the size of the primary tumor node by factor 1.5-2, which correlated with 5- to 10-fold decreasing SINEs and LINEs. We demonstrated that SINEs and LINEs from cfDNA of tumor-bearing mice are able to penetrate human cells. The results show that SINEs and LINEs could be important players in metastasis, and this allows them to be considered as attractive new targets for anticancer therapy.
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Affiliation(s)
- Ludmila A Alekseeva
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Avenue, 8, Novosibirsk 630090, Russia
| | - Aleksandra V Sen'kova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Avenue, 8, Novosibirsk 630090, Russia
| | - Marina A Zenkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Avenue, 8, Novosibirsk 630090, Russia
| | - Nadezhda L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Avenue, 8, Novosibirsk 630090, Russia.
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Patutina OA, Miroshnichenko SK, Mironova NL, Sen'kova AV, Bichenkova EV, Clarke DJ, Vlassov VV, Zenkova MA. Catalytic Knockdown of miR-21 by Artificial Ribonuclease: Biological Performance in Tumor Model. Front Pharmacol 2019; 10:879. [PMID: 31456683 PMCID: PMC6698794 DOI: 10.3389/fphar.2019.00879] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 07/10/2019] [Indexed: 12/25/2022] Open
Abstract
Control of the expression of oncogenic small non-coding RNAs, notably microRNAs (miRNAs), is an attractive therapeutic approach. We report a design platform for catalytic knockdown of miRNA targets with artificial, sequence-specific ribonucleases. miRNases comprise a peptide [(LeuArg)2Gly]2 capable of RNA cleavage conjugated to the miRNA-targeted oligodeoxyribonucleotide, which becomes nuclease-resistant within the conjugate design, without resort to chemically modified nucleotides. Our data presented here showed for the first time a truly catalytic character of our miR-21-miRNase and its ability to cleave miR-21 in a multiple catalytic turnover mode. We demonstrate that miRNase targeted to miR-21 (miR-21-miRNase) knocked down malignant behavior of tumor cells, including induction of apoptosis, inhibition of cell invasiveness, and retardation of tumor growth, which persisted on transplantation into mice of tumor cells treated once with miR-21-miRNase. Crucially, we discover that the high biological activity of miR-21-miRNase can be directly related not only to its truly catalytic sequence-specific cleavage of miRNA but also to its ability to recruit the non-sequence specific RNase H found in most cells to elevate catalytic turnover further. miR-21-miRNase worked synergistically even with low levels of RNase H. Estimated degradation in the presence of RNase H exceeded 103 miRNA target molecules per hour for each miR-21-miRNase molecule, which provides the potency to minimize delivery requirements to a few molecules per cell. In contrast to the comparatively high doses required for the simple steric block of antisense oligonucleotides, truly catalytic inactivation of miRNA offers more effective, irreversible, and persistent suppression of many copy target sequences. miRNase design can be readily adapted to target other pathogenic microRNAs overexpressed in many disease states.
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Affiliation(s)
- Olga A Patutina
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Svetlana K Miroshnichenko
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Nadezhda L Mironova
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Aleksandra V Sen'kova
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Elena V Bichenkova
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - David J Clarke
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Valentin V Vlassov
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
| | - Marina A Zenkova
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
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Markov OV, Mironova NL, Shmendel EV, Maslov MA, Zenkova MA. [Systemic delivery of complexes of melanoma RNA with mannosylated liposomes activates highly efficient murine melanoma-specific cytotoxic T cells in vivo]. Mol Biol (Mosk) 2019; 51:118-125. [PMID: 28251974 DOI: 10.7868/s002689841701013x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Accepted: 02/24/2016] [Indexed: 11/23/2022]
Abstract
The efficiency of the antitumor immune response triggered by dendritic cell (DC)-based vaccines depends predominantly on the efficiency of delivering tumor antigen-coding nucleic acids into DCs. Mannosylated liposomes were used to deliver tumor total RNA into DCs both ex vivo and in vivo, and the cytotoxic T-lymphocyte (CTL) antitumor response was assayed. The liposomes contained the mannosylated lipid conjugate 3-[6-(α-D-mannopyranosyloxy)hexyl]amino-4-{6-[rac-2,3-di(tetradecyloxy)prop-1-yl oxycarbonylamino]hexyl}aminocyclobut-3-en-1,2-dione), the polycationic lipid 2X3 (1,26-bis(cholest-5-en-3β-yloxycarbonylamino)-7,11,16,20-tetraazahexacosane tetrahydrochloride), and the zwitterionic lipid DOPE (1,2-dioleoyl-sn-glycero-3-phosphoethanolamine) at a molar ratio of 1: 3: 6 and were used as a transfection agent. Total RNA isolated from B16-F10 mouse melanoma cells served as a source of tumor antigens. Systemic administration of mannosylated liposomes-tumor RNA complexes into circulation of melanoma-bearing mice induced an efficient CTL response, which reduced the melanoma cell index in vitro with the same efficiency (by a factor of 2.8) as CTLs activated via an inoculation of DCs loaded with complexes of the same composition ex vivo. Complexes of tumor RNA with control liposomes, which lacked the mannosylated lipid conjugate, or DCs transfected with these complexes ex vivo were less efficient and reduced the melanoma cell count by a factor of only 1.6-1.8.
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Affiliation(s)
- O V Markov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia.,
| | - N L Mironova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia.,
| | - E V Shmendel
- Institute of Fine Chemical Technologies, Moscow Technological University, Moscow, 119571 Russia
| | - M A Maslov
- Institute of Fine Chemical Technologies, Moscow Technological University, Moscow, 119571 Russia
| | - M A Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
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9
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Patutina OA, Bazhenov MA, Miroshnichenko SK, Mironova NL, Pyshnyi DV, Vlassov VV, Zenkova MA. Peptide-oligonucleotide conjugates exhibiting pyrimidine-X cleavage specificity efficiently silence miRNA target acting synergistically with RNase H. Sci Rep 2018; 8:14990. [PMID: 30302012 PMCID: PMC6177439 DOI: 10.1038/s41598-018-33331-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/21/2018] [Indexed: 12/13/2022] Open
Abstract
Taking into account the important role of miRNA in carcinogenesis, oncogenic miRNAs are attractive molecules for gene-targeted therapy. Here, we developed a novel series of peptide-oligonucleotide conjugates exhibiting ribonuclease activity targeted to highly oncogenic miRNAs miR-21 and miR-17. When designing the conjugates, we enhanced both nuclease resistance of the targeted oligodeoxyribonucleotide by introducing at its 3'-end mini-hairpin structure displaying high thermostability and robustness against nuclease digestion and the efficiency of its functioning by attachment of the catalytic construction (amide)NH2-Gly(ArgLeu)4-TCAA displaying ribonuclease activity to its 5'-end. Designed miRNases efficiently cleaved miRNA targets, exhibiting Pyr-X specificity, and cleavage specificity had strong dependence on the miRNA sequence in the site of peptide location. In vitro, designed miRNases do not prevent cleavage of miRNA bound with the conjugate by RNase H, and more than an 11-fold enhancement of miRNA cleavage by the conjugate is observed in the presence of RNase H. In murine melanoma cells, miRNase silences mmu-miR-17 with very high efficiency as a result of miR-17 cleavage by miRNase and by recruited RNase H. Thus, miRNases provide a system of double attack of the miRNA molecules, significantly increasing the efficiency of miRNA downregulation in the cells in comparison with antisense oligonucleotide.
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Affiliation(s)
- O A Patutina
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - M A Bazhenov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - S K Miroshnichenko
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - N L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - D V Pyshnyi
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - V V Vlassov
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - M A Zenkova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia.
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Alexeeva LA, Patutina OA, Sen'kova AV, Zenkova MA, Mironova NL. [Inhibition of Invasive Properties of Murine Melanoma by Bovine Pancreatic DNase I In Vitro and In Vivo]. Mol Biol (Mosk) 2018; 51:637-646. [PMID: 28900082 DOI: 10.7868/s0026898417040024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 09/20/2016] [Indexed: 11/23/2022]
Abstract
After a long pause, the accumulation of data on the involvement of tumor-specific DNA and extracellular DNA in metastasis has again placed enzymes with deoxyribonuclease activity in the focus of the search for antitumor and antimetastatic drugs. In this work, the ability of bovine pancreatic DNase I to reduce the invasive potential of B16 melanoma has been investigated in vitro and in vivo. It was found that DNase I had a cytotoxic effect on B16 melanoma cells (IC50 ≈ 10^(4) U/mL). At the same time, significantly lower doses of DNase I (10^(2)-10^(3) U/mL) inhibited the migratory activity of melanoma cells in vitro, causing a decrease in the distance of cell front migration and in the area of scratch healing 48 h after the enzyme addition, as well as reducing the rate of cell migration. In mice with B16 metastatic melanoma, intramuscular administration of DNase I in the dose range of 0.12-1.20 mg/kg resulted in a two- to threefold decrease in the number of surface lung metastases and caused nonspecific antigenic immune stimulation.
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Affiliation(s)
- L A Alexeeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090 Russia
| | - O A Patutina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090 Russia
| | - A V Sen'kova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090 Russia
| | - M A Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090 Russia
| | - N L Mironova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090 Russia.,
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Alekseeva LA, Mironova NL, Brenner EV, Kurilshikov AM, Patutina OA, Zenkova MA. Alteration of the exDNA profile in blood serum of LLC-bearing mice under the decrease of tumour invasion potential by bovine pancreatic DNase I treatment. PLoS One 2017; 12:e0171988. [PMID: 28222152 PMCID: PMC5319761 DOI: 10.1371/journal.pone.0171988] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 01/30/2017] [Indexed: 12/20/2022] Open
Abstract
Taking into account recently obtained data indicating the participation of circulating extracellular DNA (exDNA) in tumorigenesis, enzymes with deoxyribonucleic activity have again been considered as potential antitumour and antimetastatic drugs. Previously, using murine Lewis lung carcinoma and hepatocellular carcinoma A1 tumour models, we have shown the antimetastatic activity of bovine DNase I, which correlates with an increase of DNase activity and a decrease of exDNA concentration in the blood serum of tumour-bearing mice. In this work, using next-generation sequencing on the ABS SOLiD™ 5.500 platform, we performed a search for molecular targets of DNase I by comparing the exDNA profiles of healthy animals, untreated animals with Lewis lung carcinoma (LLC) and those with LLC treated with DNase I. We found that upon DNase I treatment of LLC-bearing mice, together with inhibition of metastasis, a number of strong alterations in the patterns of exDNA were observed. The major differences in exDNA profiles between groups were: i) the level of GC-poor sequences increased during tumour development was reduced to that of healthy mice; ii) levels of sequences corresponding to tumour-associated genes Hmga2, Myc and Jun were reduced in the DNase I-treated group in comparison with non-treated mice; iii) 224 types of tandem repeat over-presented in untreated LLC-bearing mice were significantly reduced after DNase I treatment. The most important result obtained in the work is that DNase I decreased the level of B-subfamily repeats having homology to human ALU repeats, known as markers of carcinogenesis, to the level of healthy animals. Thus, the obtained data lead us to suppose that circulating exDNA plays a role in tumour dissemination, and alteration of multiple molecular targets in the bloodstream by DNase I reduces the invasive potential of tumours.
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Affiliation(s)
- Ludmila A. Alekseeva
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
| | - Nadezhda L. Mironova
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
| | - Evgenyi V. Brenner
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
| | | | - Olga A. Patutina
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
| | - Marina A. Zenkova
- Institute of Chemical Biology and Fundamental Medicine, SB RAS, Novosibirsk, Russia
- * E-mail:
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12
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Patutina OA, Bichenkova EV, Miroshnichenko SK, Mironova NL, Trivoluzzi LT, Burusco KK, Bryce RA, Vlassov VV, Zenkova MA. miRNases: Novel peptide-oligonucleotide bioconjugates that silence miR-21 in lymphosarcoma cells. Biomaterials 2017; 122:163-178. [PMID: 28126663 DOI: 10.1016/j.biomaterials.2017.01.018] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 12/24/2022]
Abstract
MicroRNAs (miRNAs) are active regulators in malignant growth and constitute potential targets for anticancer therapy. Consequently, considerable effort has focused on identifying effective ways to modulate aberrant miRNA expression. Here we introduce and assess a novel type of chemically engineered biomaterial capable of cleaving specific miRNA sequences, i.e. miRNA-specific artificial ribonucleases (hereafter 'miRNase'). The miRNase template presented here consists of the catalytic peptide Acetyl-[(LeuArg)2Gly]2 covalently attached to a miRNA-targeting oligonucleotide, which can be linear or hairpin. The peptide C-terminus is conjugated to an aminohexyl linker located at either the 3'- or 5'-end of the oligonucleotide. The cleavage efficacy, structural aspects of cleavage and biological relevance of a set of these designed miRNases was assayed with respect to highly oncogenic miR-21. Several miRNases demonstrated effective site-selective cleavage of miR-21 exclusively at G-X bonds. One of the most efficient miRNase was shown to specifically inhibit miR-21 in lymphosarcoma cells and lead to a reduction in their proliferative activity. This report provides the first experimental evidence that metallo-independent peptide-oligonucleotide chemical ribonucleases are able to effectively and selectively down-regulate oncogenic miRNA in tumour cells, thus suggesting their potential in development of novel therapeutics aimed at overcoming overexpression of disease-related miRNAs.
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Affiliation(s)
- Olga A Patutina
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - Elena V Bichenkova
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK.
| | - Svetlana K Miroshnichenko
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - Nadezhda L Mironova
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - Linda T Trivoluzzi
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Kepa K Burusco
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Richard A Bryce
- School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Oxford Road, Manchester, M13 9PT, UK
| | - Valentin V Vlassov
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia
| | - Marina A Zenkova
- Laboratory of Nucleic Acids Biochemistry, Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev ave., 8, Novosibirsk, 630090, Russia.
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Markov OV, Mironova NL, Sennikov SV, Vlassov VV, Zenkova MA. Prophylactic Dendritic Cell-Based Vaccines Efficiently Inhibit Metastases in Murine Metastatic Melanoma. PLoS One 2015; 10:e0136911. [PMID: 26325576 PMCID: PMC4556596 DOI: 10.1371/journal.pone.0136911] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Accepted: 08/10/2015] [Indexed: 12/16/2022] Open
Abstract
Recent data on the application of dendritic cells (DCs) as anti-tumor vaccines has shown their great potential in therapy and prophylaxis of cancer. Here we report on a comparison of two treatment schemes with DCs that display the models of prophylactic and therapeutic vaccination using three different experimental tumor models: namely, Krebs-2 adenocarcinoma (primary tumor), melanoma (B16, metastatic tumor without a primary node) and Lewis lung carcinoma (LLC, metastatic tumor with a primary node). Dendritic cells generated from bone marrow-derived DC precursors and loaded with lysate of tumor cells or transfected with the complexes of total tumor RNA with cationic liposomes were used for vaccination. Lipofectamine 2000 and liposomes consisting of helper lipid DOPE (1,2-dioleoyl-sn-glycero-3-phosphoethanolamine) and cationic lipid 2D3 (1,26-Bis(1,2-de-O-tetradecyl-rac-glycerol)-7,11,16,20-tetraazahexacosan tetrahydrocloride) were used for RNA transfection. It was shown that DCs loaded with tumor lysate were ineffective in contrast to tumor-derived RNA. Therapeutic vaccination with DCs loaded by lipoplexes RNA/Lipofectamine 2000 was the most efficient for treatment of non-metastatic Krebs-2, where a 1.9-fold tumor growth retardation was observed. Single prophylactic vaccination with DCs loaded by lipoplexes RNA/2D3 was the most efficient to treat highly aggressive metastatic tumors LLC and B16, where 4.7- and 10-fold suppression of the number of lung metastases was observed, respectively. Antimetastatic effect of single prophylactic DC vaccination in metastatic melanoma model was accompanied by the reductions in the levels of Th2-specific cytokines however the change of the levels of Th1/Th2/Th17 master regulators was not found. Failure of double prophylactic vaccination is explained by Th17-response polarization associated with autoimmune and pro-inflammatory reactions. In the case of therapeutic DC vaccine the polarization of Th1-response was found nevertheless the antimetastatic effect was less effective in comparison with prophylactic DC vaccine.
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Affiliation(s)
- Oleg V. Markov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Nadezhda L. Mironova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Sergey V. Sennikov
- Federal State Budgetary Institution "Research Institute of Clinical Immunology", Siberian Branch of Russian Academy of Medical Sciences, Novosibirsk, Russia
| | - Valentin V. Vlassov
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
| | - Marina A. Zenkova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
- * E-mail:
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14
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Markov OV, Mironova NL, Shmendel EV, Serikov RN, Morozova NG, Maslov MA, Vlassov VV, Zenkova MA. Multicomponent mannose-containing liposomes efficiently deliver RNA in murine immature dendritic cells and provide productive anti-tumour response in murine melanoma model. J Control Release 2015; 213:45-56. [DOI: 10.1016/j.jconrel.2015.06.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Revised: 06/15/2015] [Accepted: 06/21/2015] [Indexed: 12/21/2022]
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15
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Mironova NL, Petrushanko IY, Patutina OA, Sen'kova AV, Simonenko OV, Mitkevich VA, Markov OV, Zenkova MA, Makarov AA. Ribonuclease binase inhibits primary tumor growth and metastases via apoptosis induction in tumor cells. Cell Cycle 2013; 12:2120-31. [PMID: 23759588 DOI: 10.4161/cc.25164] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Exogenous ribonucleases are known to inhibit tumor growth via apoptosis induction in tumor cells, allowing to consider them as promising anticancer drugs for clinical application. In this work the antitumor potential of binase was evaluated in vivo and the mechanism of cytotoxic effect of binase on tumor cells was comprehensively studied in vitro. We investigated tumoricidal activity of binase using three murine tumor models of Lewis lung carcinoma (LLC), lymphosarcoma RLS 40 and melanoma B-16. We show for the first time that intraperitoneal injection of binase at a dose range 0.1-5 mg/kg results in retardation of primary tumor growth up to 45% in LLC and RLS 40 and inhibits metastasis up to 50% in LLC and RLS 40 and up to 70% in B-16 melanoma. Binase does not exhibit overall toxic effect and displays a general systemic and immunomodulatory effects. Treatment of RLS 40-bearing animals with binase together with polychemotherapy revealed that binase decreases the hepatotoxicity of polychemotherapy while maintaining its antitumor effect. It was demonstrated that the cytotoxic effect of binase is realized via the induction of the intrinsic and extrinsic apoptotic pathways. Activation of intrinsic apoptotic pathway is manifested by a drop of mitochondrial potential, increase in calcium concentration and inhibition of respiratory activity. Subsequent synthesis of TNF-α in the cells under the action of binase triggers extrinsic apoptotic pathway through the binding of TNF with cell-death receptors and activation of caspase 8. Thus binase is a potential anticancer therapeutics inducing apoptosis in cancer cells.
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Affiliation(s)
- Nadezhda L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia
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16
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Sen'kova AV, Mironova NL, Patutina OA, Ageeva TA, Zenkova MA. The Toxic Effects of Polychemotherapy onto the Liver Are Accelerated by the Upregulated MDR of Lymphosarcoma. ISRN Oncol 2012; 2012:721612. [PMID: 23251817 PMCID: PMC3517856 DOI: 10.5402/2012/721612] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 10/15/2012] [Indexed: 11/23/2022]
Abstract
Antitumor therapy of hematological malignancies is impeded due to the high toxicity of polychemotherapy toward liver and increasing multiple drug resistance (MDR) of tumor cells under the pressure of polychemotherapy. These two problems can augment each other and significantly reduce the efficiency of antineoplastic therapy. We studied the combined effect of polychemotherapy and upregulated MDR of lymphosarcoma RLS(40) onto the liver of experimental mice using two treatment schemes. Scheme 1 is artificial: the tumor was subjected to four courses of polychemotherapy while the liver of the tumor-bearing mice was exposed to only one. This was achieved by threefold tumor retransplantation taken from animals subjected to chemotherapy into intact animals. Scheme 2 displays "real-life" status of patients with MDR malignancies: both the tumor and the liver of tumor-bearing mice were subjected to three sequential courses of polychemotherapy. Our data show that the strengthening of MDR phenotype of RLS(40) under polychemotherapy and toxic pressure of polychemotherapy itself has a synergistic damaging effect on the liver that is expressed in the accumulation of destructive changes in the liver tissue, the reduction of the regeneration capacity of the liver, and increasing of Pgp expression on the surface of hepatocytes.
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Affiliation(s)
- Alexandra V Sen'kova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of Russian Academy of Science, Lavrentiev Avenue 8, Novosibirsk 630090, Russia ; Novosibirsk State Medical University, Krasnyi Prospect 52, Novosibirsk 630091, Russia
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17
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Patutina OA, Mironova NL, Logashenko EB, Popova NA, Nikolin VP, Vasil'ev GV, Kaledin VI, Zenkova MA, Vlasov VV. Cyclophosphamide metabolite inducing apoptosis in RLS mouse lymphosarcoma cells is a substrate for P-glycoprotein. Bull Exp Biol Med 2012; 152:348-52. [PMID: 22803083 DOI: 10.1007/s10517-012-1525-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
RLS lymphosarcoma characterized by enhanced expression of mdr1a and mdr1b genes encoding P-glycoprotein is insensitive to low doses of cyclophosphamide, but is susceptible to its high doses approximating the maximum tolerated doses. Induction of apoptotic death of RLS cells by high doses of cyclophosphamide was demonstrated by cytofluorometry and electrophoresis. Experiments on RLS(40) tumor cells derived from RLS lymphosarcoma and characterized by more intensive expression of mdr1a/1b genes showed that the therapeutic effects of cyclophosphamide increased under conditions of simultaneous suppression of these genes by specific small interfering RNA (siRNA). These findings suggest that active cyclophosphamide metabolite can be a substrate for P-glycoprotein.
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Affiliation(s)
- O A Patutina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Division of the Russian Academy of Sciences, Novosibirsk, Russia
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18
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Mironova NL, Panzinskyi EE, Popova NA, Nikolin VP, Zenkova MA, Vlasov VV. Specifically activated dendritic cells--cell-based vaccine against lymphosarcoma exhibiting multiple drug resistance phenotype. DOKL BIOCHEM BIOPHYS 2010; 428:252-6. [PMID: 20848912 DOI: 10.1134/s1607672909050081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- N L Mironova
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 8, Novosibirsk 630090, Russia
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Patutina OA, Mironova NL, Ryabchikova EI, Popova NA, Nikolin VP, Kaledin VI, Vlassov VV, Zenkova MA. Tumoricidal Activity of RNase A and DNase I. Acta Naturae 2010. [DOI: 10.32607/actanaturae.10770] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Patutina OA, Mironova NL, Ryabchikova EI, Popova NA, Nikolin VP, Kaledin VI, Vlassov VV, Zenkova MA. Tumoricidal Activity of RNase A and DNase I. Acta Naturae 2010. [DOI: 10.32607/20758251-2010-2-1-88-93] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Patutina OA, Mironova NL, Vlassov VV, Zenkova MA. New Approaches for Cancer Treatment: Antitumor Drugs Based on gene-Targeted Nucleic Acids. Acta Naturae 2009. [DOI: 10.32607/20758251-2009-1-2-44-60] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Patutina OA, Mironova NL, Vlassov VV, Zenkova MA. New approaches for cancer treatment: antitumor drugs based on gene-targeted nucleic acids. Acta Naturae 2009; 1:44-60. [PMID: 22649602 PMCID: PMC3347510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Currently, the main way to fight cancer is still chemotherapy. This method of treatment is at the height of its capacity, so, setting aside the need for further improvements in traditional treatments for neoplasia, it is vital to develop now approaches toward treating malignant tumors. This paper reviews innovational experimental approaches to treating malignant malformations based on the use of gene-targeted drugs, such as antisense oligonucleotides (asON), small interfering RNA (siRNA), ribozymes, and DNAzymes, which can all inhibit oncogene expression. The target genes for these drugs are thoroughly characterized, and the main results from pre-clinical and first-step clinical trials of these drugs are presented. It is shown that the gene-targeted oligonucleotides show considerable variations in their effect on tumor tissue, depending on the target gene in question. The effects range from slowing and stopping the proliferation of tumor cells to suppressing their invasive capabilities. Despite their similarity, not all the antisense drugs targeting the same region of the mRNA of the target-gene were equally effective. The result is determined by the combination of the drug type used and the region of the target-gene mRNA that it complements.
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Affiliation(s)
- O A Patutina
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences
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Shklyaeva OA, Mironova NL, Malkova EM, Taranov OS, Ryabchikova EI, Zenkova MA, Vlasov VV. Cancer-suppressive effect of RNase A and DNase I. DOKL BIOCHEM BIOPHYS 2008; 420:108-11. [PMID: 18680903 DOI: 10.1134/s1607672908030034] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- O A Shklyaeva
- Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, pr. Akademika Lavrent'eva 8, Novosibirsk, 630090 Russia
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Mironova NL, Pyshnyi DV, Stadler DV, Prokudin IV, Boutorine YI, Ivanova EM, Zenkova MA, Gross HJ, Vlassov VV. G-specific RNA-cleaving conjugates of short peptides and oligodeoxyribonucleotides. J Biomol Struct Dyn 2006; 23:591-602. [PMID: 16615805 DOI: 10.1080/07391102.2006.10507084] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
Artificial ribonucleases, conjugates of short oligodeoxyribonucleotides and peptides built of arginine, leucine, proline, and serine, were synthesized and assessed in terms of ribonuclease activity and specificity of RNA cleavage. A specific group of the conjugates was identified that display T1-ribonuclease-like activity and cleave RNA predominantly at G-X sequences. Circular dichroism study of the structures of the most active conjugates, free peptide (LR)4G, and oligonucleotides revealed that conjugation of oligonucleotide to the peptide results in a specific peptide folding that possibly provides ribonuclease activity to the conjugate.
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Affiliation(s)
- Nadezhda L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Avenue 8, Russian Federation, Novosibirsk, 630090
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25
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Mironova NL, Boutorine YI, Pyshnyi DV, Ivanova EM, Zenkova MA, Vlassov VV. Ribonuclease activity of the peptides with alternating arginine and leucine residues conjugated to tetrathymidilate. Nucleosides Nucleotides Nucleic Acids 2005; 23:885-90. [PMID: 15560077 DOI: 10.1081/ncn-200026036] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
RNA cleaving conjugates have been prepared by attachment of oligodeoxyribonucleotide TTTT to peptides containing arginine, leucine, proline and serine residues. The highest activity was displayed by the conjugates containing peptides with alternating arginine and leucine residues (LR)4G-amide. Ribonuclease activity of the conjugates pep-T4 decreases in the order T4-(LR)4G > T4-(LR)2G > T4-(LLRR)2G > T4-(LR)2PRLRG > S2R3-Hmda-T4 > or = R5 double dagger (LR)3. According to CD spectra, the free peptide (LR)4G-amide in water solution at neutral pH and physiological ionic strength has no pronounced secondary structure whereas conjugated to oligonucleotide it acquires a folding similar to alpha-helix.
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Affiliation(s)
- N L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Novosibirsk, Russia.
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26
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Mironova NL, Pyshnyi DV, Ivanova EM, Zenkova MA, Gross HJ, Vlassov VV. Covalently attached oligodeoxyribonucleotides induce RNase activity of a short peptide and modulate its base specificity. Nucleic Acids Res 2004; 32:1928-36. [PMID: 15047859 PMCID: PMC390365 DOI: 10.1093/nar/gkh514] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2003] [Revised: 02/16/2004] [Accepted: 03/09/2004] [Indexed: 11/12/2022] Open
Abstract
New artificial ribonucleases, conjugates of short oligodeoxyribonucleotides with peptides containing alternating arginine and leucine, were synthesized and characterized in terms of their catalytic activity and specificity of RNA cleavage. The conjugates efficiently cleave different RNAs within single-stranded regions. Depending on the sequence and length of the oligonucleotide, the conjugates display either G-X>>Pyr-A or Pyr-A>>G-X cleavage specificity. Preferential RNA cleavage at G-X phosphodiester bonds was observed for conjugate NH2-Gly-[ArgLeu]4-CCAAACA. The conjugates function as true catalysts, exhibiting reaction turnover up to 175 for 24 h. Our data show that in the conjugate the oligonucleotide plays the role of a factor which provides an 'active' conformation of the peptide via intramolecular interactions, and that it is the peptide residue itself which is responsible for substrate affinity and catalysis.
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Affiliation(s)
- Nadezhda L Mironova
- Institute of Chemical Biology and Fundamental Medicine SB RAS, Lavrentiev Avenue 8, Novosibirsk, Russian Federation
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27
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Beloglazova NG, Mironova NL, Konevets DA, Petiuk VA, Sil'nikov VN, Vlasov VV, Zenkova MA. [Kinetic parameters of hydrolysis of CpA and UpA sequences in an oligoribonucleotide by compounds functionally mimicking ribonuclease A]. Mol Biol (Mosk) 2002; 36:1068-73. [PMID: 12500546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Kinetic parameters of cleavage of CpA and UpA sequences in an oligoribonucleotide under the action of artificial ribonuclease ABL3C1 were measured. The compounds were built of RNA-binding domain B, catalytic fragment C, linker L3 comprising 3 methylene groups, and aliphatic fragment A. The rate of cleavage of phosphodiester bonds in CpA sequence within decaribonucleotide UUCAUGUAAA was shown to be 3.4 +/- 0.2 times higher than in UpA sequence. The rate of cleavage of phosphodiester bonds were found to depend on substrate length: a thousandfold increase in cleavage rate constant was observed for CpA sequence in decaribonucleotide as compared with diribonucleotide monophosphate CpA. A slight decrease in the cleavage rates was observed for the reactions proceeding in different buffers at pH 7.0: imidazole > HEPES > phosphate > cacodylate. At the same time, the ratio of cleavage rates for CpA and UpA sequences remained constant.
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Affiliation(s)
- N G Beloglazova
- Novosibirsk Institute of Bioorganic Chemistry, Siberian Division, Russian Academy of Sciences, Novosibirsk, 630090 Russia
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28
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Konevets DA, Mironova NL, Bekk IE, Zenkova MA, Shishkin GV, Vlasov VV, Sil'nikov VN. [Chemical ribonucleases. 4. Analysis of the fragment structure of chemical ribonucleases based on 1,4-diazabicyclo[2.2.2]octane]. Bioorg Khim 2002; 28:367-78. [PMID: 12197396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Abstract
Artificial ribonucleases of the ABLkCm series were synthesized. They consist of a lipophilic alkyl radical (Et, n-C14H29, or C15H31) A, an "RNA-binding domain" B (bisquaternary salt of 1,4-diazabicyclo[2.2.2]octane), a "catalytic domain" Cm [histamine (C1) or histidine (C3) residue], and a "linker" Lk that joins the "domains" B and Cm [here, k is the number of methylene units (one or three) in the linker]. The effect of the "domain structure" on the catalytic properties of the chemical ribonucleases was analyzed using seven compounds of this series (ABL1C1, ABL3C1, ABL3C3, AC1, AB, BL2, and BL3C3). The catalytic activity of the compounds was assessed in the reaction of hydrolysis of the in vitro transcripts of human tRNA(Lys) and yeast tRNA(Asp) under physiological conditions. It was shown that only chemical ribonucleases that involve all the fragments of the ABLkCm construct can hydrolyze the substrate tRNA at a high rate (90% of tRNA is hydrolyzed for 10 h at 37 degrees C). The activity of the compounds is largely determined by the presence of a long lipophilic radical linked to 1,4-diazabicyclo[2.2.2]octane and a long linker, which joins the RNA-hydrolyzing and RNA-binding fragments. The results indicate an important role of hydrophobic interactions in the acceleration of the RNA hydrolysis reaction. The English version of the paper: Russian Journal of Bioorganic Chemistry, 2002, vol. 28, no. 4; see also http://www.maik.ru.
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Affiliation(s)
- D A Konevets
- Novosibirsk Institute of Bioorganic Chemistry, Russian Academy of Sciences, Siberian Division, pr. Akademika Lavrent'eva 8, Novosibirsk, 630090 Russia
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Mironova NL, Pyshnyi DV, Ivanova EM, Zenkova MA, Gross GJ, Vlasov VV. Artificial ribonucleases: oligonucleotide-peptide conjugates that cleave RNA at the GpX and PypA phosphodiester bonds. DOKL BIOCHEM BIOPHYS 2002; 385:196-200. [PMID: 12462971 DOI: 10.1023/a:1019907305751] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- N L Mironova
- Institute of Bioorganic Chemistry, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent'eva 8, Novosibirsk, 630090 Russia
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