1
|
Zharkov YE, Zhorzholiani ST, Sergeev AA, Agafonov AV, Gorodkov AY, Bockeria LA. Experimental and Model Study of a Swirling Fluid Flow in a Converging Channel As a Simulation of Blood Flow in the Heart and Aorta. DOKL BIOCHEM BIOPHYS 2023; 513:S36-S52. [PMID: 38472664 DOI: 10.1134/s1607672924700777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2023] [Revised: 01/15/2024] [Accepted: 01/17/2024] [Indexed: 03/14/2024]
Abstract
Study of swirling flows in channels corresponding to the static approximation of flow channels of the heart and major vessels with a longitudinal-radial profile zR2 = const and a concave streamlined surface at the beginning of the longitudinal coordinate has been carried out. A comparative analysis of the flow structure in channel configurations zRN = const, where N = -1, 1, 2, 3, in the absence and presence of a concave surface was carried out. The numerical modeling was compared with the results of hydrodynamic experiments on the flow characteristics and the shape of the flow lines. The numerical model was used to determine the velocity structure, viscous friction losses, and shear stresses. Numerical modeling of steady-state flows for channels without a concave surface showed that in the channel zR2 = const there is a stable vortex flow structure with the lowest viscous friction losses. The presence of a concave surface of sufficient size significantly reduces viscous friction losses and shear stresses in both the steady state and pulsed modes.
Collapse
Affiliation(s)
- Y E Zharkov
- Bakulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia
| | - S T Zhorzholiani
- Bakulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia
| | - A A Sergeev
- Bakulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia
| | - A V Agafonov
- Bakulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia
| | - A Y Gorodkov
- Bakulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia.
| | - L A Bockeria
- Bakulev National Medical Research Center for Cardiovascular Surgery, Moscow, Russia
| |
Collapse
|
2
|
Shchelkunov SN, Sergeev AA, Pyankov SA, Titova KA, Yakubitskiy SN. Smallpox vaccination in a mouse model. Vavilovskii Zhurnal Genet Selektsii 2023; 27:712-718. [PMID: 37965374 PMCID: PMC10641030 DOI: 10.18699/vjgb-23-82] [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: 01/30/2023] [Revised: 05/27/2023] [Accepted: 05/29/2023] [Indexed: 11/16/2023] Open
Abstract
The monkeypox epidemic, which became unusually widespread among humans in 2022, has brought awareness about the necessity of smallpox vaccination of patients in the risk groups. The modern smallpox vaccine variants are introduced either intramuscularly or by skin scarification. Intramuscular vaccination cannot elicit an active immune response, since tissues at the vaccination site are immunologically poor. Skin has evolved into an immunologically important organ in mammals; therefore, intradermal delivery of a vaccine can ensure reliable protective immunity. Historically, vaccine inoculation into scarified skin (the s.s. route) was the first immunization method. However, it does not allow accurate vaccine dosing, and high-dose vaccines need to be used to successfully complete this procedure. Intradermal (i.d.) vaccine injection, especially low-dose one, can be an alternative to the s.s. route. This study aimed to compare the s.s. and i.d. smallpox immunization routes in a mouse model when using prototypic second- and fourth-generation low-dose vaccines (104 pfu). Experiments were conducted using BALB/c mice; the LIVP or LIVP-GFP strains of the vaccinia virus (VACV) were administered into the tail skin via the s.s. or i.d. routes. After vaccination (7, 14, 21, 28, 42, and 56 days post inoculation (dpi)), blood samples were collected from the retro-orbital venous sinus; titers of VACV-specific IgM and IgG in the resulting sera were determined by ELISA. Both VACV strains caused more profound antibody production when injected via the i.d. route compared to s.s. inoculation. In order to assess the level of the elicited protective immunity, mice were intranasally infected with a highly lethal dose of the cowpox virus on 62 dpi. The results demonstrated that i.d. injection ensures a stronger protective immunity in mice compared to s.s. inoculation for both VACV variants.
Collapse
Affiliation(s)
- S N Shchelkunov
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A A Sergeev
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| | - S A Pyankov
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| | - K A Titova
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| | - S N Yakubitskiy
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| |
Collapse
|
3
|
Shchelkunov SN, Yakubitskiy SN, Sergeev AA, Starostina EV, Titova KA, Pyankov SA, Shchelkunova GA, Borgoyakova MB, Zadorozhny AM, Orlova LA, Kisakov DN, Karpenko LI. Enhancing the Immunogenicity of Vaccinia Virus. Viruses 2022; 14:v14071453. [PMID: 35891430 PMCID: PMC9317313 DOI: 10.3390/v14071453] [Citation(s) in RCA: 1] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/27/2022] [Accepted: 06/29/2022] [Indexed: 11/24/2022] Open
Abstract
The conventional live smallpox vaccine based on the vaccinia virus (VACV) cannot be widely used today because it is highly reactogenic. Therefore, there is a demand for designing VACV variants possessing enhanced immunogenicity, making it possible to reduce the vaccine dose and, therefore, significantly eliminate the pathogenic effect of the VACV on the body. In this study, we analyzed the development of the humoral and T cell-mediated immune responses elicited by immunizing mice with low-dose VACV variants carrying the mutant A34R gene (which increases production of extracellular virions) or the deleted A35R gene (whose protein product inhibits antigen presentation by the major histocompatibility complex class II). The VACV LIVP strain, which is used as a smallpox vaccine in Russia, and its recombinant variants LIVP-A34R*, LIVP-dA35R, and LIVP-A34R*-dA35R, were compared upon intradermal immunization of BALB/c mice at a dose of 104 pfu/animal. The strongest T cell-mediated immunity was detected in mice infected with the LIVP-A34R*-dA35R virus. The parental LIVP strain induced a significantly lower antibody level compared to the strains carrying the modified A34R and A35R genes. Simultaneous modification of the A34R gene and deletion of the A35R gene in VACV LIVP synergistically enhanced the immunogenic properties of the LIVP-A34R*-dA35R virus.
Collapse
|
4
|
Sergeev AA, Naberezhnykh GA, Khomenko VA, Amosov AV, Nepomnyaschiy AV, Solov'eva TF, Chistyulin DK, Tutov MV, Kulchin YN, Novikova OD. In situ-Synthesized cadmium sulfide quantum dots in pore-forming protein and polysaccharide matrices for optical biosensing applications. Colloids Surf B Biointerfaces 2022; 217:112607. [PMID: 35671573 DOI: 10.1016/j.colsurfb.2022.112607] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Revised: 05/12/2022] [Accepted: 05/27/2022] [Indexed: 10/18/2022]
Abstract
The main limitation for practical implementation of quantum dots-based sensors and biosensors is the possible contamination of sensing media with quantum dots (QDs) moved out from the sensor structure, being critical for living systems measurements. Numerous efforts have addressed the challenge of pre-synthesized QDs incorporation into porous matrix provide, on the one hand, proper fixation of quantum dots in its volume and preserving a free analyte transfer from the sensing media to them - on the other hand. Here, we propose an alternative insight into this problem. Instead of using preliminary synthesized particles for doping a matrix, we have in situ synthesized cadmium sulfide QDs in porous biopolymeric matrices, both in an aqueous solution and on a mica substrate. The proposed technique allows obtaining QDs in a matrix acting simultaneously as a ligand passivating surface defects and preventing QDs aggregation. The conjugates were used as a photoluminescence sensor for the metal ions and glutathione detection in an aqueous media. Different kinds of sensor responses have been found depending on the analyte nature. Zinc ions' presence initiates the intraband QDs emission increases due to the reduction of non-radiative processes. The presence of copper ions, in contrast, leads to a gradual photoluminescence decrease due to the formation of the non-luminescent copper-based alloy in the QDs structure. Finally, the presence of glutathione initiates a ligand exchange process followed by some QDs surface treatment enhancing defect-related photoluminescence. As a result, three different kinds of sensor responses for three analytes allow claiming development of a new selective QD-based sensor suitable for biomedical applications.
Collapse
Affiliation(s)
- A A Sergeev
- Institute of Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, 5, Radio street, Vladivostok 690041, Russia
| | - G A Naberezhnykh
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, prospect 100 Let Vladivostoku, Vladivostok 690022, Russia
| | - V A Khomenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, prospect 100 Let Vladivostoku, Vladivostok 690022, Russia
| | - A V Amosov
- Institute of Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, 5, Radio street, Vladivostok 690041, Russia
| | - A V Nepomnyaschiy
- Institute of Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, 5, Radio street, Vladivostok 690041, Russia
| | - T F Solov'eva
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, prospect 100 Let Vladivostoku, Vladivostok 690022, Russia
| | - D K Chistyulin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, prospect 100 Let Vladivostoku, Vladivostok 690022, Russia
| | - M V Tutov
- Far Eastern Federal University, 10, Ajax Bay, Russky Island, Vladivostok 690922, Russia
| | - Yu N Kulchin
- Institute of Automation and Control Processes, Far Eastern Branch of the Russian Academy of Sciences, 5, Radio street, Vladivostok 690041, Russia
| | - O D Novikova
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, 159, prospect 100 Let Vladivostoku, Vladivostok 690022, Russia
| |
Collapse
|
5
|
Shchelkunov SN, Bauer TV, Yakubitskiy SN, Sergeev AA, Kabanov AS, Pyankov SA. [Mutations in the A34R gene increase the immunogenicity of vaccinia virus]. Vavilovskii Zhurnal Genet Selektsii 2021; 25:139-146. [PMID: 34901711 PMCID: PMC8627874 DOI: 10.18699/vj21.017] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/06/2020] [Accepted: 10/06/2020] [Indexed: 11/19/2022] Open
Abstract
Самым простым и надежным способом защиты от вирусных инфекций является вакцинопрофилактика. При этом наибольшей протективной эффективностью обладают живые вакцины, в основе которых
используют слабовирулентные для человека вирусы, близкородственные патогенным, или аттенуированные
(ослабленные за счет мутаций/делеций в вирусном геноме) варианты патогенного для человека вируса. Вакцинация против оспы с использованием живого вируса осповакцины (vaccinia virus, VACV), близкородственного вирусу натуральной оспы, сыграла важнейшую роль в успехе программы глобальной ликвидации оспы,
которая осуществлялась под эгидой Всемирной организации здравоохранения. Прекращение после 1980 г.
противооспенной вакцинации привело к тому, что огромная часть населения Земли в настоящее время не
имеет иммунитета не только к оспе, но и любым другим зоонозным ортопоксвирусным инфекциям. Это создает возможность циркуляции зоонозных ортопоксвирусов в человеческой популяции и, как следствие, приводит к изменению экологии и круга чувствительных хозяев для разных видов ортопоксвирусов. При этом
использование классической живой вакцины на основе VACV для защиты от этих инфекций в настоящее время не приемлемо, так как она может обусловливать тяжелые побочные реакции. В связи с этим все более
актуальной становится разработка новых безопасных вакцин против ортопоксвирусных инфекций человека
и животных. Аттенуация (ослабление вирулентности) VACV достигается в результате направленной инактивации определенных генов вируса и обычно приводит к уменьшению эффективности размножения VACV in vivo.
Следствием этого может быть снижение иммунного ответа при введении аттенуированного вируса пациентам в стандартных дозах. Часто используемым для встройки/инактивации в геноме VACV является ген тимидинкиназы, нарушение которого приводит к аттенуации вируса. В данной работе изучено, как введение двух
точечных мутаций в ген A34R аттенуированного штамма LIVP-GFP (ТК-), увеличивающих выход внеклеточных
оболочечных вирионов (EEV), влияет на свойства пато- и иммуногенности варианта VACV LIVP-GFP-A34R при
интраназальном заражении лабораторных мышей. Показано, что увеличение продукции EEV рекомбинантным штаммом VACV LIVP-GFP-A34R не меняет аттенуированный фенотип, характерный для родительского
штамма LIVP-GFP, но приводит к существенно большей продукции VACV-специфичных антител.
Ключевые слова: вирус осповакцины; направленные мутации; аттенуация; иммуногенность.
Collapse
Affiliation(s)
- S N Shchelkunov
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - T V Bauer
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| | - S N Yakubitskiy
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| | - A A Sergeev
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| | - A S Kabanov
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| | - S A Pyankov
- State Research Center of Virology and Biotechnology "Vector", Rospotrebnadzor, Koltsovo, Novosibirsk region, Russia
| |
Collapse
|
6
|
Tsygankov YM, Sergeev AA, Zhorzholiani ST, Shepelev AD, Krasheninnikov SV, Tenchurin TK, Agafonov AV, Gorodkov AY, Bockeria LA. The Effect of Mechanical Compatibility and of Thrombogenicity on the Ingrowth of a New Synthetic Vascular Prosthesis (Experimental Study). DOKL BIOCHEM BIOPHYS 2021; 500:317-320. [PMID: 34697735 DOI: 10.1134/s1607672921050185] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 05/22/2021] [Accepted: 05/23/2021] [Indexed: 11/23/2022]
Abstract
Common disadvantages of modern synthetic vascular prostheses are thrombogenicity and lack of biomechanical compatibility with the prothesized vessel. To elucidate the role of these factors in the prosthesis integration, prostheses specimens were made by the electrospinning from the known materials: polycaprolactone, polyurethane and a mixture of fluorine-containing synthetic rubber FKM-26 with fluoroplastic F-26. The germination of the prostheses was compared with standard e-PTFE prosthesis in the pigs infrarenal aorta. The elastic properties of prostheses were studied by elastometry under the physiological range of loads. The thrombogenicity of the materials was determined by the number of platelets adhered to material surface exposed to native blood. The patency of the prostheses was checked by aortography. The germination of prostheses was assessed in the histological examination. It was shown that, with this set of materials, biomechanical compatibility turned out to be a more important factor of integration than the material thrombogenicity.
Collapse
Affiliation(s)
- Y M Tsygankov
- Bakulev National Medical Research Center of Cardiovascular Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia.
| | - A A Sergeev
- Bakulev National Medical Research Center of Cardiovascular Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - Sh T Zhorzholiani
- Bakulev National Medical Research Center of Cardiovascular Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - A D Shepelev
- National Research Center Kurchatov Institute, Moscow, Russia
| | | | - T Kh Tenchurin
- National Research Center Kurchatov Institute, Moscow, Russia
| | - A V Agafonov
- Bakulev National Medical Research Center of Cardiovascular Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - A Yu Gorodkov
- Bakulev National Medical Research Center of Cardiovascular Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| | - L A Bockeria
- Bakulev National Medical Research Center of Cardiovascular Surgery of the Ministry of Health of the Russian Federation, Moscow, Russia
| |
Collapse
|
7
|
Sadykov VF, Bogdanova AA, Sergeev AA, Konovalova MV, Konstantinova E, Pyregov AV, Poltavtseva RA, Gilyarov MY, Svirshchevskaya EV. Myocardial infarction versus COVID-19 blood secretome. Eur Heart J 2021. [DOI: 10.1093/eurheartj/ehab724.3230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Both myocardial infarction (MI) and COVID-19 are characterized by cytokine storm in blood.
Purpose
The objective of this study was to compare the concentration of 39 cytokines, chemokines, and growth factors in blood sera of patients with MI, COVID-19 (COV), and healthy donors.
Methods
Patients' blood was collected within 1–2 days after hospitalization in the cardiovascular or COVID intensive care units. All COV patients were in a severe condition; all had increased C reactive protein, 86 and 95% had increased ferritin and D-dimers levels accordingly, 8–10 times decreased lymphocyte numbers. The analysis of the humoral factors in blood serum of MI (n=22), COV (n=23) and donors (n=27) was performed using a 39-plex cytometric analysis.
Results
Among all factors analyzed TGFa, IL-1b, 2, 3, 5, 9, 13, 17A were almost not detectable both in patient and donor sera. The concentrations of the other 31 humoral factors in normal sera differed significantly from 0 to 22000 pg/mL. We divided them into house-keeping factors HKF ranged from 1000 to 22000 pg/mL; sentinel innate immunity factors SIF (30–200 pg/mL), and acute phase factors APF (0–30 pg/mL). HKF were detected in all samples. Among SIF and APF IL-1a, G-CSF, IFNa2, IL-7, MIP-1a, IL-12, and IFNg were detected in 56–80% donor blood while IL-1RA, MCP-3, IL-2, 6, 10, 12, 15, FLT-3F, GM-CSF, TNF-b – only in 10–55%. At the same time all MI patients were 100% positive in all these factors showing extensive activation of blood secretome. Among low incidence APF cytokines in COV patients, percentage of IL-1RA, MCP-3, IFNa2, IL-6, 10, 15, FLT-3L negative sera decreased 3–5 times; and all sera were positive for MIP-1a and IL-12. At the same time TNF-a level decreased significantly from 0 in control to 85% of negative sera in COV patients. Summarized results are shown as the ratios of factor concentrations in MI or COV sera to normal control (Fig). Blood secretome of MI changed more significantly than of COV patients. The major factors (shown in red) in MI were IL-6, IL-12, IFNg, FLT-3L, GM-CSF, and IL-15, which increased 12, 9, 6, 6, 6, and 5 times accordingly. In COV sera IL-6, IL-10, IP-10, and MCP-3 increased by 28, 12, 10, and 9 times accordingly. Less expressed however significant increases are marked with asterisks.
Conclusions
Acute MI is characterized by severe disturbances in blood secretome with an increased level of 25 out of 39 factors studied. Contrary to it, in COV patients the levels of IL-6, 10, IP-10, and MCP-3 were more enhanced while only 15 out of 31 exceeded normal levels.
Funding Acknowledgement
Type of funding sources: Public Institution(s). Main funding source(s): Public Institution
Collapse
Affiliation(s)
- V F Sadykov
- National Medical Research Center of Obstetrics, Gynecology and Perinatology named V. I. Kulakov, Moscow, Russian Federation
| | - A A Bogdanova
- City clinical hospital No. 1 n.a. N.I. Pirogov, Moscow, Russian Federation
| | - A A Sergeev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russian Federation
| | - M V Konovalova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry RAS, Moscow, Russian Federation
| | - E Konstantinova
- City clinical hospital No. 1 n.a. N.I. Pirogov, Moscow, Russian Federation
| | - A V Pyregov
- National Medical Research Center of Obstetrics, Gynecology and Perinatology named V. I. Kulakov, Moscow, Russian Federation
| | - R A Poltavtseva
- National Medical Research Center of Obstetrics, Gynecology and Perinatology named V. I. Kulakov, Moscow, Russian Federation
| | - M Y Gilyarov
- City clinical hospital No. 1 n.a. N.I. Pirogov, Moscow, Russian Federation
| | - E V Svirshchevskaya
- National Medical Research Center of Obstetrics, Gynecology and Perinatology named V. I. Kulakov, Moscow, Russian Federation
| |
Collapse
|
8
|
Sokolova AS, Kovaleva KS, Yarovaya OI, Bormotov NI, Shishkina LN, Serova OA, Sergeev AA, Agafonov AP, Maksuytov RA, Salakhutdinov NF. (+)-Camphor and (-)-borneol derivatives as potential anti-orthopoxvirus agents. Arch Pharm (Weinheim) 2021; 354:e2100038. [PMID: 33605479 DOI: 10.1002/ardp.202100038] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [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: 01/28/2021] [Accepted: 01/30/2021] [Indexed: 11/11/2022]
Abstract
Although the World Health Organisation had announced that smallpox was eradicated over 40 years ago, the disease and other related pathogenic poxviruses such as monkeypox remain potential bioterrorist weapons and could also re-emerge as natural infections. We have previously reported (+)-camphor and (-)-borneol derivatives with an antiviral activity against the vaccinia virus. This virus is similar to the variola virus (VARV), the causative agent of smallpox, but can be studied at BSL-2 facilities. In the present study, we evaluated the antiviral activity of the most potent compounds against VARV, cowpox virus, and ectromelia virus (ECTV). Among the compounds tested, 4-bromo-N'-((1R,4R)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ylidene)benzohydrazide 18 is the most effective compound against various orthopoxviruses, including VARV, with an EC50 value of 13.9 μM and a selectivity index of 206. Also, (+)-camphor thiosemicarbazone 9 was found to be active against VARV and ECTV.
Collapse
Affiliation(s)
- Anastasiya S Sokolova
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russian Federation
| | - Kseniya S Kovaleva
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russian Federation
| | - Olga I Yarovaya
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russian Federation
| | - Nikolay I Bormotov
- State Research Centre of Virology and Biotechnology VECTOR, Rospotrebnadzor, Novosibirsk, Russian Federation
| | - Larisa N Shishkina
- State Research Centre of Virology and Biotechnology VECTOR, Rospotrebnadzor, Novosibirsk, Russian Federation
| | - Olga A Serova
- State Research Centre of Virology and Biotechnology VECTOR, Rospotrebnadzor, Novosibirsk, Russian Federation
| | - Alexander A Sergeev
- State Research Centre of Virology and Biotechnology VECTOR, Rospotrebnadzor, Novosibirsk, Russian Federation
| | - Alexander P Agafonov
- State Research Centre of Virology and Biotechnology VECTOR, Rospotrebnadzor, Novosibirsk, Russian Federation
| | - Rinat A Maksuytov
- State Research Centre of Virology and Biotechnology VECTOR, Rospotrebnadzor, Novosibirsk, Russian Federation
| | - Nariman F Salakhutdinov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch Russian Academy of Sciences, Novosibirsk, Russian Federation
| |
Collapse
|
9
|
Zelenina DA, Soshnina VA, Sergeev AA. [Phylogeography and Mitochondrial Polymorphism of Asian Coho Salmon]. Mol Biol (Mosk) 2020; 54:997-1005. [PMID: 33276363 DOI: 10.31857/s0026898420060166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 07/06/2020] [Accepted: 07/21/2020] [Indexed: 11/24/2022]
Abstract
Multiple Pleistocene glaciations significantly affected the gene pool of many species inhabiting the Northern part of the Pacific Rim, an area with a rich glacial history. This paper is devoted to the study of intraspecific polymorphism of the coho salmon and the routes of its settlement throughout the Asian part of its range. Such problems are traditionally solved by comparing parts of the mitochondrial genome. Here, two fragments of mtDNA, the control region (D-loop) and the cytochrome b gene (cytb), were investigated. It was shown that the settlement of the Asian Pacific coast by the coho salmon was preceded by a chain of successive migration events from the refugium located on the North American continent to the South of the ice sheet covering the area of modern Canada and southern Alaska. The low level of genetic polymorphism in Asian coho populations seems to be a result of a pronounced founder effect, rather than being characteristic of the species as a whole.
Collapse
Affiliation(s)
- D A Zelenina
- Russian Federal Institute of Fisheries and Oceanography, Moscow, 107140 Russia.,
| | - V A Soshnina
- Russian Federal Institute of Fisheries and Oceanography, Moscow, 107140 Russia.,Department of Ichthyology, Faculty of Biology, Lomonosov Moscow State University, Moscow, 119991 Russia
| | - A A Sergeev
- Russian Federal Institute of Fisheries and Oceanography, Moscow, 107140 Russia
| |
Collapse
|
10
|
Shchelkunov SN, Yakubitskiy SN, Sergeev AA, Kabanov AS, Bauer TV, Bulychev LE, Pyankov SA. Effect of the Route of Administration of the Vaccinia Virus Strain LIVP to Mice on Its Virulence and Immunogenicity. Viruses 2020; 12:E795. [PMID: 32722032 PMCID: PMC7472337 DOI: 10.3390/v12080795] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/10/2020] [Accepted: 07/23/2020] [Indexed: 12/30/2022] Open
Abstract
The mass smallpox vaccination campaign has played a crucial role in smallpox eradication. Various strains of the vaccinia virus (VACV) were used as a live smallpox vaccine in different countries, their origin being unknown in most cases. The VACV strains differ in terms of pathogenicity exhibited upon inoculation of laboratory animals and reactogenicity exhibited upon vaccination of humans. Therefore, each generated strain or clonal variant of VACV needs to be thoroughly studied in in vivo systems. The clonal variant 14 of LIVP strain (LIVP-14) was the study object in this work. A comparative analysis of the virulence and immunogenicity of LIVP-14 inoculated intranasally (i.n.), intradermally (i.d.), or subcutaneously (s.c.) to BALB/c mice at doses of 108, 107, and 106 pfu was carried out. Adult mice exhibited the highest sensitivity to the i.n. administered LIVP-14 strain, although the infection was not lethal. The i.n. inoculated LIVP-14 replicated efficiently in the lungs. Furthermore, this virus was accumulated in the brain at relatively high concentrations. Significantly lower levels of LIVP-14 were detected in the liver, kidneys, and spleen of experimental animals. No clinical manifestations of the disease were observed after i.d. or s.c. injection of LIVP-14 to mice. After s.c. inoculation, the virus was detected only at the injection site, while it could disseminate to the liver and lungs when delivered via i.d. administration. A comparative analysis of the production of virus-specific antibodies by ELISA and PRNT revealed that the highest level of antibodies was induced in i.n. inoculated mice; a lower level of antibodies was observed after i.d. administration of the virus and the lowest level after s.c. injection. Even at the lowest studied dose (106 pfu), i.n. or i.d. administered LIVP-14 completely protected mice against infection with the cowpox virus at the lethal dose. Our findings imply that, according to the ratio between such characteristics as pathogenicity/immunogenicity/protectivity, i.d. injection is the optimal method of inoculation with the VACV LIVP-14 strain to ensure the safe formation of immune defense after vaccination against orthopoxviral infections.
Collapse
Affiliation(s)
- Sergei N. Shchelkunov
- State Research Center of Virology and Biotechnology VECTOR, Rospotrebnadzor, Koltsovo 630559, Novosibirsk Region, Russia; (S.N.Y.); (A.A.S.); (A.S.K.); (T.V.B.); (L.E.B.); (S.A.P.)
| | | | | | | | | | | | | |
Collapse
|
11
|
Petrochenkova NV, Mirochnik AG, Emelina TB, Sergeev AA, Leonov AA, Voznesenskii SS. Luminescent amine sensor based on europium(III) chelate. Spectrochim Acta A Mol Biomol Spectrosc 2018; 200:70-75. [PMID: 29665459 DOI: 10.1016/j.saa.2018.03.084] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 03/29/2018] [Accepted: 03/30/2018] [Indexed: 06/08/2023]
Abstract
The effect of methylamine vapor on luminescence of Eu(III) tris-benzoylacetonate (I) immobilized in thin-layer chromatography plates has been investigated. It has been revealed that interaction of I with analyte vapor results in increase of the intensity of Eu(III) luminescence. The mechanism of the effect of methylamine vapors on intensification of the Eu(III) luminescence has been suggested using the data of IR spectroscopy and quantum chemistry calculations. The mechanism of luminescence sensitization consists in bonding of an analyte molecule with a water molecule into the coordination sphere of Eu(III). As a result, the bond of a water molecule with the luminescence centre weakens, rigid structural fragment including europium ion, water and methylamine molecules forms. The presence of such fragment must naturally promote decrease of influence of OH-vibrations on luminescence of the complex I.
Collapse
Affiliation(s)
- Nataliya V Petrochenkova
- Institute of Chemistry, Far East Branch of Russian Academy of Sciences, Vladivostok 690022, Russia; Nevelskoy Maritime State University, Vladivostok 690059, Russia
| | - Anatolii G Mirochnik
- Institute of Chemistry, Far East Branch of Russian Academy of Sciences, Vladivostok 690022, Russia.
| | - Tatyana B Emelina
- Institute of Chemistry, Far East Branch of Russian Academy of Sciences, Vladivostok 690022, Russia.
| | - Alexander A Sergeev
- Institute of Automatics and Control Processes, Far East Branch of Russian Academy of Sciences, Vladivostok 690041, Russia
| | - Andrei A Leonov
- Institute of Automatics and Control Processes, Far East Branch of Russian Academy of Sciences, Vladivostok 690041, Russia
| | - Sergey S Voznesenskii
- Institute of Automatics and Control Processes, Far East Branch of Russian Academy of Sciences, Vladivostok 690041, Russia
| |
Collapse
|
12
|
Sergeev AA, Kabanov AS, Bulychev LE, Sergeev AA, Pyankov OV, Bodnev SA, Galahova DO, Zamedyanskaya AS, Titova KA, Glotova TI, Taranov OS, Omigov VV, Shishkina LN, Agafonov AP, Sergeev AN. Using the Ground Squirrel (Marmota bobak) as an Animal Model to Assess Monkeypox Drug Efficacy. Transbound Emerg Dis 2017; 64:226-236. [PMID: 25944444 DOI: 10.1111/tbed.12364] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2015] [Indexed: 11/29/2022]
Abstract
In experiments to study the sensitivity of ground squirrels (Marmota bobak) to monkeypox virus (MPXV) at intranasal challenge, expressed pox-like clinical symptoms (hyperthermia, lymphadenitis, skin rash all over the body and mucous membranes and others) were observed 7-9 days post-infection. The 50% infective dose (ID50 ) of MPXV for these marmots determined by the presence of clinical signs of the disease was 2.2 log10 PFU. Some diseased marmots (about 40%) died 13-22 days post-infection, and the mortality rate was weakly dependent on MPXV infective dose. Lungs with trachea were primary target organs of marmots challenged intranasally (with ~30 ID50 ). The pathogen got to secondary target organs of the animals mainly via the lymphatic way (with replication in bifurcation lymph nodes). Lungs with trachea, nasal mucosa and skin were the organs where the maximum MPXV amounts accumulated in these animals. Evidences of the pathogen presence and replication were revealed in these and subcutaneously infected marmots in the traditional primary target cells for MPXV (macrophages and respiratory tract epitheliocytes), as well as in some other cells (endotheliocytes, plasmocytes, fibroblasts, reticular and smooth muscle cells). Our use of this animal species to assess the antiviral efficacy of some drugs demonstrated the agreement of the obtained results with those described in scientific literature, which opens up the prospects of using marmots as animal models for monkeypox to develop therapeutic and preventive anti-smallpox drugs.
Collapse
Affiliation(s)
- A A Sergeev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - A S Kabanov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - L E Bulychev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - A A Sergeev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - O V Pyankov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - S A Bodnev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - D O Galahova
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - A S Zamedyanskaya
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - K A Titova
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - T I Glotova
- State Scientific Establishment - Institute of Experimental Veterinary Science of Siberia and the Far East Russian Academy of Agricultural Sciences, Krasnoobsk, Russia
| | - O S Taranov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - V V Omigov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - L N Shishkina
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - A P Agafonov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| | - A N Sergeev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Russia
| |
Collapse
|
13
|
Mazurkov OY, Kabanov AS, Shishkina LN, Sergeev AA, Skarnovich MO, Bormotov NI, Skarnovich MA, Ovchinnikova AS, Titova KA, Galahova DO, Bulychev LE, Sergeev AA, Taranov OS, Selivanov BA, Tikhonov AY, Zavjalov EL, Agafonov AP, Sergeev AN. New effective chemically synthesized anti-smallpox compound NIOCH-14. J Gen Virol 2016; 97:1229-1239. [PMID: 26861777 DOI: 10.1099/jgv.0.000422] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Antiviral activity of the new chemically synthesized compound NIOCH-14 (a derivative of tricyclodicarboxylic acid) in comparison with ST-246 (the condensed derivative of pyrroledione) was observed in experiments in vitro and in vivo using orthopoxviruses including highly pathogenic ones. After oral administration of NIOCH-14 to outbred ICR mice infected intranasally with 100 % lethal dose of ectromelia virus, it was shown that 50 % effective doses of NIOCH-14 and ST-246 did not significantly differ. The 'therapeutic window' varied from 1 day before infection to 6 days post-infection (p.i.) to achieve 100-60 % survival rate. The administration of NIOCH-14 and ST-246 to mice resulted in a significant reduction of ectromelia virus titres in organs examined as compared with the control and also reduced pathological changes in the lungs 6 days p.i. Oral administration of NIOCH-14 and ST-246 to ICR mice and marmots challenged with monkeypox virus as compared with the control resulted in a significant reduction of virus production in the lungs and the proportion of infected mice 7 days p.i. as well as the absence of disease in marmots. Significantly lower proportions of infected mice and virus production levels in the lungs as compared with the control were demonstrated in experiments after oral administration of NIOCH-14 and ST-246 to ICR mice and immunodeficient SCID mice challenged with variola virus 3 and 4 days p.i., respectively. The results obtained suggest good prospects for further study of the chemical compound NIOCH-14 to create a new smallpox drug on its basis.
Collapse
Affiliation(s)
- Oleg Yu Mazurkov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alexey S Kabanov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Larisa N Shishkina
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alexander A Sergeev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Maksim O Skarnovich
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Nikolay I Bormotov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Maria A Skarnovich
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alena S Ovchinnikova
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Ksenya A Titova
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Darya O Galahova
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Leonid E Bulychev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Artemiy A Sergeev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Oleg S Taranov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Boris A Selivanov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry (NIOCH),Novosibirsk,Russian Federation
| | - Alexey Ya Tikhonov
- N. N. Vorozhtsov Novosibirsk Institute of Organic Chemistry (NIOCH),Novosibirsk,Russian Federation
| | | | - Alexander P Agafonov
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| | - Alexander N Sergeev
- State Research Center of Virology and Biotechnology Vector (SRC VB Vector),Koltsovo, Novosibirsk region,Russian Federation
| |
Collapse
|
14
|
Glotov AG, Glotova TI, Koteneva SV, Semenova OV, Sergeev AA, Titova KA, Morozova AA, Sergeev AA. Virulent Properties of Russian Bovine Viral Diarrhea Virus Strains in Experimentally Infected Calves. Scientifica (Cairo) 2016; 2016:7034509. [PMID: 27190687 PMCID: PMC4848454 DOI: 10.1155/2016/7034509] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Revised: 02/24/2016] [Accepted: 03/27/2016] [Indexed: 06/05/2023]
Abstract
The results of experimental study of three noncytopathic and two cytopathic bovine viral diarrhea virus (BVDV) strains isolated from cattle in the Siberian region and belonging to the type 1 (subtypes 1a, 1b, and 1d) have been presented. All investigated strains caused the development of infectious process in the seronegative 4-6-month-old calves after aerosol challenge with the dose of 6 log10 TCID50. The greatest virulence had noncytopathic strain and cytopathic strain related to the subtypes 1d and 1b, respectively. All strains in infected calves caused some signs of moderate acute respiratory disease and diarrhea: depression 3-5 days postinfection (p.i.), refusal to food, severe hyperthermia to 41.9°С, serous exudate discharges from the nasal cavity and eyes, transient diarrhea with blood, leukopenia (up to 2700 cells/mm(3)), and macroscopic changes in the respiratory organs and intestine. The infected animals recovered from 12 to 15 days p.i. and in 90% cases formed humoral immune response 25 days p.i. (antibody titers to BVDV: 1 : 4-1 : 16). Our results confirmed the presence of virulent BVDV1 strains and showed the need for researches on the molecular epidemiology of the disease, development of more effective diagnostic systems, and optimization of control programs with use of vaccines.
Collapse
Affiliation(s)
- Alexander G. Glotov
- Institute of Experimental Veterinary Science of Siberia and the Far East, Krasnoobsk, Novosibirsk Region 630501, Russia
| | - Tatyana I. Glotova
- Institute of Experimental Veterinary Science of Siberia and the Far East, Krasnoobsk, Novosibirsk Region 630501, Russia
| | - Svetlana V. Koteneva
- Institute of Experimental Veterinary Science of Siberia and the Far East, Krasnoobsk, Novosibirsk Region 630501, Russia
| | - Olga V. Semenova
- Institute of Experimental Veterinary Science of Siberia and the Far East, Krasnoobsk, Novosibirsk Region 630501, Russia
| | - Alexander A. Sergeev
- State Research Center of Virology and Biotechnology Vector, Koltsovo, Novosibirsk Region 630559, Russia
| | - Ksenya A. Titova
- State Research Center of Virology and Biotechnology Vector, Koltsovo, Novosibirsk Region 630559, Russia
| | - Anastasia A. Morozova
- State Research Center of Virology and Biotechnology Vector, Koltsovo, Novosibirsk Region 630559, Russia
| | - Artemiy A. Sergeev
- State Research Center of Virology and Biotechnology Vector, Koltsovo, Novosibirsk Region 630559, Russia
| |
Collapse
|
15
|
Mirochnik AG, Petrochenkova NV, Shishov AS, Bukvetskii BV, Emelina TB, Sergeev AA, Voznesenskii SS. Europium(III) tris-dibenzoylmethanate as an efficient chemosensor for detection of ammonia. Spectrochim Acta A Mol Biomol Spectrosc 2016; 155:111-115. [PMID: 26600058 DOI: 10.1016/j.saa.2015.11.004] [Citation(s) in RCA: 6] [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] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Revised: 10/26/2015] [Accepted: 11/03/2015] [Indexed: 06/05/2023]
Abstract
The effect of ammonia vapor on luminescence of Eu(III) tris-dibenzoylmethanate immobilized in various matrices has been investigated. It has been revealed that interaction of Eu(III) tris-dibenzoylmethanate with analyte vapor results in increase of the intensity of Eu(III) luminescence. The mechanism of the effect of ammonia vapors on intensification of the Eu(III) luminescence has been suggested using the data of IR spectroscopy, X-ray diffraction analysis and quantum chemistry calculations. The mechanism of luminescence sensitization consists in bonding of an analyte molecule with a water molecule into the coordination sphere of Eu(III). As a result, the bond of a water molecule with the luminescence centre weakens and the blockage of the quenching of luminescence on OH-vibrations takes place.
Collapse
Affiliation(s)
- Anatolii G Mirochnik
- Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia.
| | - Nataliya V Petrochenkova
- Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia; Nevelskoy Maritime State University, Vladivostok, 690059, Russia
| | - Alexander S Shishov
- Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Boris V Bukvetskii
- Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Tatyana B Emelina
- Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Alexander A Sergeev
- Institute of Automatics and Control Processes, Far East Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| | - Sergey S Voznesenskii
- Institute of Automatics and Control Processes, Far East Branch, Russian Academy of Sciences, Vladivostok, 690041, Russia
| |
Collapse
|
16
|
Dedkov VG, Magassouba NF, Safonova MV, Deviatkin AA, Dolgova AS, Pyankov OV, Sergeev AA, Utkin DV, Odinokov GN, Safronov VA, Agafonov AP, Maleev VV, Shipulin GA. Development and evaluation of a real-time RT-PCR assay for the detection of Ebola virus (Zaire) during an Ebola outbreak in Guinea in 2014-2015. J Virol Methods 2015; 228:26-30. [PMID: 26597659 DOI: 10.1016/j.jviromet.2015.11.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [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: 07/07/2015] [Revised: 11/13/2015] [Accepted: 11/14/2015] [Indexed: 11/25/2022]
Abstract
In early February 2014, an outbreak of the Ebola virus disease caused by Zaire ebolavirus (EBOV) occurred in Guinea; cases were also recorded in other West African countries with a combined population of approximately 25 million. A rapid, sensitive and inexpensive method for detecting EBOV is needed to effectively control such outbreak. Here, we report a real-time reverse-transcription PCR assay for Z. ebolavirus detection used by the Specialized Anti-epidemic Team of the Russian Federation during the Ebola virus disease prevention mission in the Republic of Guinea. The analytical sensitivity of the assay is 5 × 10(2) viral particles per ml, and high specificity is demonstrated using representative sampling of viral, bacterial and human nucleic acids. This assay can be applied successfully for detecting the West African strains of Z. ebolavirus as well as on strains isolated in the Democratic Republic of the Congo in 2014.
Collapse
Affiliation(s)
- V G Dedkov
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia; RAMS Institute of Occupational Health, Moscow, Russia.
| | - N' F Magassouba
- Laboratorie de Virologic B1568 Université Gamal Abdel Nasser de Conakry, Projet de Recherche sur les Fièvres Hémorragiques en Guinée Guinea
| | - M V Safonova
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - A A Deviatkin
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia; RAMS Institute of Occupational Health, Moscow, Russia
| | - A S Dolgova
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - O V Pyankov
- State Research Center of Virology and Biotechnology "Vector", Novosibirsk, Russia
| | - A A Sergeev
- State Research Center of Virology and Biotechnology "Vector", Novosibirsk, Russia
| | - D V Utkin
- Russian Research Anti-Plague Institute, Microbe, Saratov, Russia
| | - G N Odinokov
- Russian Research Anti-Plague Institute, Microbe, Saratov, Russia
| | - V A Safronov
- Russian Research Anti-Plague Institute, Microbe, Saratov, Russia
| | - A P Agafonov
- State Research Center of Virology and Biotechnology "Vector", Novosibirsk, Russia
| | - V V Maleev
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| | - G A Shipulin
- Central Research Institute for Epidemiology, Federal Service on Consumers' Rights Protection and Human Well-Being Surveillance, Moscow, Russia
| |
Collapse
|
17
|
Titova KA, Sergeev AA, Zamedyanskaya AS, Galahova DO, Kabanov AS, Morozova AA, Bulychev LE, Sergeev AA, Glotova TI, Shishkina LN, Taranov OS, Omigov VV, Zavjalov EL, Agafonov AP, Sergeev AN. Using ICR and SCID mice as animal models for smallpox to assess antiviral drug efficacy. J Gen Virol 2015; 96:2832-2843. [PMID: 26067292 DOI: 10.1099/vir.0.000216] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
The possibility of using immunocompetent ICR mice and immunodeficient SCID mice as model animals for smallpox to assess antiviral drug efficacy was investigated. Clinical signs of the disease did not appear following intranasal (i.n.) challenge of mice with strain Ind-3a of variola virus (VARV), even when using the highest possible dose of the virus (5.2 log10 p.f.u.). The 50 % infective doses (ID50) of VARV, estimated by the virus presence or absence in the lungs 3 and 4 days post-infection, were 2.7 ± 0.4 log10 p.f.u. for ICR mice and 3.5 ± 0.7 log10 p.f.u. for SCID mice. After i.n. challenge of ICR and SCID mice with VARV 30 and 50 ID50, respectively, steady reproduction of the virus occurred only in the respiratory tract (lungs and nose). Pathological inflammatory destructive changes were revealed in the respiratory tract and the primary target cells for VARV (macrophages and epithelial cells) in mice, similar to those in humans and cynomolgus macaques. The use of mice to assess antiviral efficacies of NIOCH-14 and ST-246 demonstrated the compliance of results with those described in scientific literature, which opens up the prospect of their use as an animal model for smallpox to develop anti-smallpox drugs intended for humans.
Collapse
Affiliation(s)
- Ksenya A Titova
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Alexander A Sergeev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Alena S Zamedyanskaya
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Darya O Galahova
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Alexey S Kabanov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Anastasia A Morozova
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Leonid E Bulychev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Artemiy A Sergeev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Tanyana I Glotova
- State Scientific Establishment - Institute of Experimental Veterinary Science of Siberia and the Far East Russian Academy of Agricultural Sciences, Krasnoobsk, Novosibirsk Region, Russian Federation
| | - Larisa N Shishkina
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Oleg S Taranov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Vladimir V Omigov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Evgenii L Zavjalov
- Institute of Cytology and Genetics, Siberian Branch of the Russian Academy of Sciences, Prospekt Lavrentyeva 10, 630090 Novosibirsk, Russian Federation
| | - Alexander P Agafonov
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| | - Alexander N Sergeev
- Federal Budgetary Research Institution - State Research Center of Virology and Biotechnology VECTOR, Federal Service for Surveillance on Consumer Rights Protection and Human Well-being, Koltsovo, Novosibirsk region, Russian Federation
| |
Collapse
|
18
|
Voznesenskiy SS, Sergeev AA, Postnova IV, Galkina AN, Shchipunov YA, Kulchin YN. Dynamic laser-induced effects in nanocomposite systems based on the cadmium sulfide quantum dots in a silicate matrix. Opt Express 2015; 23:4415-4420. [PMID: 25836478 DOI: 10.1364/oe.23.004415] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper we study the laser-induced modification of optical properties of nanocomposite based on cadmium sulphide quantum dots encapsulated into thiomalic acid shell which were embedded into a porous silica matrix. It was found that exposure to laser radiation at λ = 405.9 nm leads to modification of optical properties of nanocomposite. For this exposed area there is a significant amount of photodynamic changes under subsequent exposure to laser radiation at λ = 405.9 nm, namely photoabsorption and photorefraction which were studied at λ = 633 nm. The value of these effects dependent on the concentration of quantum dots and modifying radiation parameters. Moreover, it has dependence from polarization of exposure radiation.
Collapse
|
19
|
Sergeev AA, Kabanov AS, Bulychev LE, Sergeev AA, Pyankov OV, Bodnev SA, Galakhova DO, Zamedyanskaya AS, Titova KA, Shishkina LN, Agafonov AP, Sergeev AN. [Development of the disease in marmot at the intranasal infection with the monkeypox virus]. Vopr Virusol 2015; 60:37-41. [PMID: 27024916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In experimental study the sensitivity of the Marmota bobak species to the monkeypox virus (MPXV) with the intranasal (i/n) infection was tested. It was demonstrated that 50% of the infective dose (ID50) of the MPXV on external clinical signs of the disease was 2.2 Ig plaque forming units (PFU). The percentage of the marmot mortality is slightly dependent on the infecting dose of the MPXV, therefore it is not possible to correctly determine the value of 50 % fatal dose (FD50) for these animals. The most pronounced external clinical signs of the disease were obtained in the marmots: pox-like skin rash throughout the surface of the body and mucous membranes, purulent discharge from the nose, lymphadenitis, discoordination, tremor of the extremities, fever, increased aggression, and ruffled fur. In the course of experiments intended to determine the dynamics of the accumulation of the MPXV in various organs, tissues, and blood serum of marmot infected i/n with dose of 3.7 Ig PFU, it was found that the trachea, lungs, and the bifurcation lymph nodes are the primary target organs. The trachea, lungs, nasal mucosa membrane, and skin are the organs with maximal virus replication recorded at 5, 7, 9, and 12 days after the infection. The transfer of the MPXV into the secondary target organs (nasal mucosa membrane, brain, spleen, duodenum, adrenal glands, and skin) was carried out in marmots with lymphogenic and hematogenic ways of the dissemination of the infection.
Collapse
|
20
|
Voznesenskiy SS, Sergeev AA, Galkina AN, Kulchin YN, Shchipunov YA, Postnova IV. Laser-induced photodynamic effects at silica nanocomposite based on cadmium sulphide quantum dots. Opt Express 2014; 22:2105-2110. [PMID: 24515219 DOI: 10.1364/oe.22.002105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this paper we study the laser-induced modification of optical properties of nanocomposite based on cadmium sulphide quantum dots encapsulated into thiomalic acid shell which were embedded into a porous silica matrix. We found red shift of luminescence of the nanocomposite when exposed to laser radiation at λ = 405 nm. Using pump-probe method and Small-Angle X-ray Scattering technique it was found that laser radiation at λ = 405 nm also increases the absorption coefficient of the nanocomposite in 15 times due to agglomeration of quantum dots. The modification of absorption properties is fully reversible.
Collapse
|
21
|
Agafonov AP, Shestopalov AM, Shikov AN, Demina OK, Durymanov AG, Sergeev AA, Agafonova PA, Vinokurova AV, Sharshov KA, Berillo SA, Skarnovich MO, Sementsova AO, Ternovoĭ BA, Malkova EM, Stavskiĭ EA, Drozdov IG. [Studies of properties of pandemic influenza virus A/H1N1 circulated in Russian Federation in 2009 - 2010]. Zh Mikrobiol Epidemiol Immunobiol 2011:24-27. [PMID: 21913387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
AIM Studies of cultural, virologic, antigenic properties of 89 samples of pandemic influenza A(H1N1) 2009 virus isolated in Russian Federation from May 2009 to March 2010. MATERIALS AND METHODS Properties of isolated samples were compared with those of the reference strain A/ California/04/2009 (H1N1). RESULTS Studies of biological properties and analysis of genome nucleotide sequences of the isolated samples showed that those strains are closely related to the reference strain. CONCLUSION Monitoring of genetic, virologic and antigenic properties of pandemic influenza A(H1N1) 2009 virus isolates carried out from May 2009 to March 2010 did not reveal significant changes in the abovementioned properties of the virus or emergence of mutations that can lead to such changes.
Collapse
|
22
|
Shishkina LN, Nebol'sin VE, Kabanov AS, Skarnovich MO, Mazurkova NA, Sergeev AA, Serova OA, Stavskiĭ EA, Drozdov IG. [In vitro and in vivo efficacy of Ingavirin against strains of pandemic influenza virus A(H1N1/09)v]. Zh Mikrobiol Epidemiol Immunobiol 2011:93-96. [PMID: 21598625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM To study efficacy of Ingavirin in vitro and in vivo against strains of pandemic influenza virus A(H1N1/09)v and influenza virus A(H5N1) and A(H3N2). MATERIALS AND METHODS Changes in hemagglutinating and cytopathic activity of influenza virus strains A(H1N1/09)v, A(H5N1) and A(H3N2) during their incubation in the presence of Ingavirin or Remantadin on MDCK cell culture were studied. In mice infected by influenza strains A(H1N1/09)v and A(H3N2) and orally treated with Ingavirin, Tamiflu or Remantadin virus titers in lungs were measured. RESULTS There was decrease in hemagglutinating and cytopathic activity of influenza virus strains after incubation with Ingavirin in vitro. Ingavirin effectively inhibited reproduction of influenza virus strains A(H1N1/09)v and A(H3N2) in lungs of infected mice. Titers of these strains in lung homogenates decreased when Ingavirin was orally administered to infected mice. CONCLUSION Strains of influenza virus A(H1N1/09)v were susceptible to Ingavirin and Tamiflu but resistant to Remantadin. Reference strains of A(H5N1) and A(H3N2) were susceptible to Ingavirin, Tamiflu and Remantadin.
Collapse
MESH Headings
- Administration, Intranasal
- Administration, Oral
- Amides/administration & dosage
- Animals
- Antibodies, Viral/analysis
- Antiviral Agents/administration & dosage
- Birds
- Caproates
- Chick Embryo
- Dicarboxylic Acids/administration & dosage
- Dogs
- Female
- Hemagglutination Tests
- Humans
- Imidazoles/administration & dosage
- Influenza A Virus, H1N1 Subtype/drug effects
- Influenza A Virus, H1N1 Subtype/immunology
- Influenza A Virus, H3N2 Subtype/drug effects
- Influenza A Virus, H3N2 Subtype/immunology
- Influenza A Virus, H5N1 Subtype/drug effects
- Influenza A Virus, H5N1 Subtype/immunology
- Influenza Vaccines/administration & dosage
- Influenza in Birds/prevention & control
- Influenza in Birds/virology
- Influenza, Human/prevention & control
- Influenza, Human/virology
- Mice
- Mice, Inbred BALB C
- Oseltamivir/administration & dosage
- Pandemics/prevention & control
- Rimantadine/administration & dosage
Collapse
|
23
|
Shikov AN, Sementsova AO, Demina OK, Sergeev AA, Berillo SA, Sergeeva EI, Vinokurova AV, Ishenina AV, Ternovoĭ VA, Agafonov AP, Drozdov IG. [Genetic variability of isolates of pandemic influenza A virus H1N1 isolated in Russia in 2009]. Mol Gen Mikrobiol Virusol 2011:23-29. [PMID: 22312897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Complete nucleotide sequence of the genome segments encoding the surface glycoproteins, hemagglutinin, and neuraminidase of influenza A virus H1N1 derived from the patients with influenza in the context of pandemic (H1N1) 2009 was determined out of 14 isolates of pandemic influenza. The philogenetic analysis of these sequences demonstrated their genetic similarity to the corresponding genes of the pandemic influenza virus A (H1N1) 2009 isolates obtained in other countries; each gene homology was greater than 99%. Neuraminidase mutations causing virus resistance to oseltamivir and other neuraminidase inhibitors, known from the literature, were not detected. The hemagglutinin gene mutation D222G was found in 4 isolates from autopsy material. In the hemagglutinin of pandemic A/Salekhard/01/2009(H1N1) isolate a mutation G155E leading to the increase in viral replication in developing chick embryos was detected. The nature and frequency of nucleotides substitutions within HA and NA genes were determined in the current research.
Collapse
|
24
|
Shishkina LI, Skarnovich MO, Kabanov AS, Sergeev AA, Tarasov SA, Sergeeva SA, Malkova EM, Stavskiĭ EA, Drozdov IG. [Study of efficacy of anaferon pediatric in mice infected by pandemic influenza virus A(H1N1/09)v]. Zh Mikrobiol Epidemiol Immunobiol 2011:83-86. [PMID: 21446173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
AIM To study efficacy of anaferon pediatric in mice infected by pandemic influenza virus A(H1N1/09)v. MATERIALS AND METHODS Influenza virus strain A/California/07/2009 (H1N1)v was used. Three groups of BALB/c mice intranasally inoculated with influenza virus were studied. First group received solution of Anaferon pediatric during 5 days before and 8 days after inoculation, 2nd group received Tamiflu during 5 days after inoculation. Distilled water was administered orally to mice from control group. RESULTS It was shown that Anaferon pediatric used as preventive and treatment agent in mice intranasally inoculated with 100% infectious dose of influenza virus strain A/ California/07/2009 (H1N1)v had antiviral effect, which expressed in 10-fold decreased reproduction of influenza virus in lungs of infected mice compared to control group measured 4, 6, and 8 days after inoculation. CONCLUSION Use of anaferon pediatric before and after inoculation with influenza virus A(H1N1/09)v was not less effective than use of Tamiflu after inoculation.
Collapse
|
25
|
Kozlova EA, Safatov AS, Kiselev SA, Marchenko VY, Sergeev AA, Skarnovich MO, Emelyanova EK, Smetannikova MA, Buryak GA, Vorontsov AV. Inactivation and mineralization of aerosol deposited model pathogenic microorganisms over TiO2 and Pt/TiO2. Environ Sci Technol 2010; 44:5121-6. [PMID: 20521809 DOI: 10.1021/es100156p] [Citation(s) in RCA: 27] [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] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Air disinfection from bacteria and viruses by means of photocatalytic oxidation is investigated with microorganisms loaded over photocatalysts' films from aerosols. Deposition method and equipment have been developed to load Mycobacterium smegmatis , Bacillus thuringiensis , vaccinia virus, and influenza A (H3N2) virus on slides with undoped TiO(2) and platinized sulfated TiO(2) (Pt/TiO(2)). Inactivation dynamics was measured under UVA irradiation and in the dark. About 90% inactivation is reached in 30 min irradiation on TiO(2) and from 90 to 99.8% on Pt/TiO(2). The first-order inactivation rate coefficient ranged from 0.18 to 0.03 min(-1), over Pt/TiO(2) being higher than on TiO(2) for all microorganisms except Bacillus thuringiensis. The photocatalytic mineralization of Bacillus thuringiensis was performed on TiO(2) and Pt/TiO(2) with different photocatalyst and microorganism loadings. Completeness of mineralization depended on the TiO(2) to bacteria mass ratio. The rate of the photocatalytic carbon dioxide production grows with both the cell mass increase and the photocatalyst mass increase. Pt/TiO(2) showed increased rate of mineralization as well as of the inactivation likely due to a better charge carrier separation in the doped semiconductor photocatalyst. The results demonstrate that photocatalytic filters with deposited TiO(2) or Pt/TiO(2) are able to inactivate aerosol microorganisms and completely decompose them into inorganic products and Pt/TiO(2) provides higher disinfection and mineralization rates.
Collapse
Affiliation(s)
- E A Kozlova
- Boreskov Institute of Catalysis, Novosibirsk 630090, Russian Federation
| | | | | | | | | | | | | | | | | | | |
Collapse
|
26
|
Zhukov VA, Shishkina LN, Safatov AS, Sergeev AA, P'iankov OV, Petrishchenko VA, Zaĭtsev BN, Toporkov VS, Sergeev AN, Nesvizhskiĭ IV, Vorob'ev AA. [Validation of the modified algorithm for predicting host susceptibility to viruses taking into account susceptibility parameters of primary target cell cultures and natural immunity factors]. Vestn Ross Akad Med Nauk 2010:24-29. [PMID: 20608042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The paper presents results of testing a modified algorithm for predicting virus ID50 values in a host of interest by extrapolation from a model host taking into account immune neutralizing factors and thermal inactivation of the virus. The method was tested for A/Aichi/2/68 influenza virus in SPF Wistar rats, SPF CD-1 mice and conventional ICR mice. Each species was used as a host of interest while the other two served as model hosts. Primary lung and trachea cells and secretory factors of the rats' airway epithelium were used to measure parameters needed for the purpose of prediction. Predicted ID50 values were not significantly different (p = 0.05) from those experimentally measured in vivo. The study was supported by ISTC/DARPA Agreement 450p.
Collapse
|
27
|
Voznesenskiĭ SS, Kul'chin IN, Galkina AN, Sergeev AA. [Morphological, optical, and structural characteristics of glass sponge spicules and the photoreceptor hypothesis of their survival]. Biofizika 2010; 55:107-112. [PMID: 20184148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The morphology, structure, and optical characteristics of spicules of some sea glass sponges have been studied. The results obtained are interpreted from the point of view of their possible role in the survival of the organism of sponges.
Collapse
|
28
|
Shishkina LN, Nebol'sin VE, Skarnovich MO, Kabanov AS, Sergeev AA, Erdyneeva UB, Serova OA, Demina OK, Agafonov AP, Stavskiĭ EA, Drozdov IG. [In vivo efficacy of Ingavirin against pandemic A (H1N1/09)v influenza virus]. Antibiot Khimioter 2010; 55:32-35. [PMID: 21033472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Ingavirin was shown to be efficient in inhibition of the pandemic influenza virus strains A/California/04/2009 (H1N1)v, A/California/07/2009 (H1N1)v, A/Moscow/225/2009 (H1N1)v and A/Moscow/226/2009 (H1N1)v. as well as the influenza virus strain A/Aichi/2/68 (H3N2) in the lungs of the infected mice. After oral administration of Ingavirin the titers of the influenza virus strains in the lung homogenates lowered.
Collapse
|
29
|
Zhukov VA, Shishkina LN, Sergeev AA, Pliasunov IV, P'iankov OV, Petrishchenko VA, Sergeev AN, Zaĭtsev BN, Nesvizhskiĭ IV, Vorob'ev AA. [Quantitative assessment of in vitro neutralizing activity of secretory factors from rat lungs against influenza virus]. Vestn Ross Akad Med Nauk 2009:46-49. [PMID: 20017408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Secretory factors were isolated by lung wash followed by centrifugation to remove cells, dialysis of supernatant to remove NaCl salt, lyophilization of the lavage fluid and resuspention of the lyophilization product in an isotonic NaCl solution. It was shown that biological activity of influenza virus /Aichi/2/68 (3N2) significantly decreased (p = 0,01) from 8,17 +/- 0,10 to 7,14 +/- 0,20 IgEID50/ml during its incubation with secretory factors at 37 degrees C for 1 hr and to 7,92 +/- 0,17 IgEID50/ml in isotonic NaCl solution in the absence of these factors. Their concentration in the incubation medium was estimated to be 9.1 +/- 0.7% of their level in the lungs.
Collapse
|
30
|
Demina OK, Sergeev AA, Agafonov AP, Shikov AN, Sementsova AO, Sergeev AA, Sergeev AN, Drozdov IG. [Investigation of therapeutic and protective effect of Reaferon-ES Lipint on mice infected with avian influenza virus (subtype H5N1)]. Antibiot Khimioter 2009; 54:27-29. [PMID: 20415260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The efficacy of the therapeutic, prophylactic and urgent prophylactic schemes for the use of Reaferon-ES lipint, a liposomal human recombinant alpha-interferon for oral use, was studied on mice infected with the avian influenza virus. Strain A/Chicken/Kurgan /05/2005 (subtype H5N1) of the avian influenza virus showed high virulence with respect to mice ICR. Theoretically-based calculations allowed to design an optimal therapeutic and prophylactic dose of the drug for the mice (1000 units/animal). It was observed that only after prophylactic use of Reaferon-ES lipint it was effective in protection of the mice infected with 10 LD50 of the avian influenza virus (A/Chicken/Kurgan/05/2005, H5N1). The protection coefficient was 0.35. Under such conditions the drug efficacy was comparable with that of Tamiflu. Therefore, Reaferon-ES lipint could be recommended for prophylaxis of the infection due not only to the season strains of the influenza virus, but also to the strains of the avian influenza virus.
Collapse
|
31
|
Zhukov VA, Shishkina LN, Sergeev AA, Malkova EM, Riabchikova EI, Petrishchenko VA, Sergeev AN, Ustiuzhanina NV, Nesvizhskiĭ IV, Vorob'ev AA. [Comparative analysis of the susceptibility and productivity of respiratory tract target cells of mice and rats exposed to inflienza virus in vitro]. Vestn Ross Akad Med Nauk 2008:12-16. [PMID: 18368764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
The levels of susceptibility to influenza virus A/Aichi/2/68 H3N2 and the virus yield were determined using primary cells of the trachea and lungs of CD-1 mice and Wistar rats, and for 3 sets of cells obtained from primary lung cells of the both species by centrifugation in the gradient of density and by sedimentation on a surface. The values of ID50 virus dose for 10(6) cells and virus yield per 1 infected cell determined for primary mice cells were 4.0+/-0.47 and 3.2+/-0.27 IgEID50 (lung cells), 3.8+/-0.17 and 3.3+/-0.20 IgEID50 (tracheal cells), and those determined for primary rat cells were 4.0+/-0.35 and 2.1+/-0.24 IgEID50 (lung cells), 3.7+/-0.27 and 2.2+/-0.46 IgEID50 (tracheal cells). The values of ID50 and yield measured for mixtures of cells obtained from primary lung cells by centrifugation in gradient of density and by sedimentation on a surface differed insignificantly (p = 0.05) from the values of the corresponding parameters measured for lung and tracheal cells for both rats and mice. The analysis of data on the variation of the concentrations of different cell types in the experimental cell mixtures shows that type 1 and 2 alveolocytes possess significantly lower (p = 0.05) susceptibility and productivity vs. ciliated cells of the both species. The investigation was conducted within the frame of the ISTC/DARPA#450p project.
Collapse
|
32
|
Skarnovich MO, Radaeva IF, Vdovichenko GV, Nechaeva EA, Sergeev AA, Petrishchenko VA, Pliasunov IV, Shishkina LN, Ternovoĭ VA, Smetannikova MA, Agafonov AP, Sergeev AN. [4647-cell culture for preparation of recombinant bivaccine against smallpox and hepatitis B]. Vopr Virusol 2007; 52:37-40. [PMID: 17500238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The seeding and working banks of a 4647-cell culture have been created. The 4647-cell culture in these banks has a high proliferative activity, as well as the morphology, typical of this line, and the karyotype and the enzymogram, which are characteristic for the cells of an African talapoin (Cercopithecus aethiops). The culture is not contaminated with bacteria, fungi, Mycoplasma, and viruses, including oncoviruses. The deposited 4647 cells have high viral productive properties for the accumulation of the recombinant virus strain b7,5S2-S vaccine and keep the stability of all biological properties during a long-term cultivation. The continuous 4647 cell line was tested at the L. A. Tarasevich State Institute of SK. The seeding and working banks of 4647-cell culture at passages 108 and 128 are recommended as a substrate for cultivation of the strain b7,5S2-S vaccinia, used to prepare a bivaccine against smallpox and hepatitis B.
Collapse
|
33
|
Smetannikova MA, Shishkina LN, Zhukov VA, Fankin IV, Sergeev AA, Skarnovich MO, P'iankov OV, Petrishchenko VA, Bondarenko VN, Sergeev AN. [Target-cell susceptibility and lung phagocyte activity in mice with influenza virus resistance lowered by glucocorticoidal immunosuppression]. Vestn Ross Akad Med Nauk 2007:3-8. [PMID: 17338373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The results of the study showed that subcutaneous kenalog (Kn) lowered the resistance of mice to influenza virus (InV), as was seen by a decrease in 50% lethal dose and an increase in the degree of pulmonary tissue lesion, and the susceptibility of the lungs to InV, seen by the fact that 50% aerogenic infective dose (AID50) was significantly higher in the main group (Kn+InV) than in controls, which received Hanks solution subcutaneously (HS+InV). In vitro, 50% infective doses of InV for suspension of pulmonary and tracheal cells, characterizing their susceptibility to InV, were similar in Kn mice and controls. At the same time, lower resistance and higher degree of pulmonary inflammation noted in Kn mice after receiving a dose of InV that was much higher than an infecting one, was accompanied by the prevalence in the number as well as phagocyte and superoxide-producing activity of neutrophiles (Nph) over the same parameters for alveolar macrophages (AMph) as early as two days after receiving InV dose, vs. InV-infected controls. Evidently, one of the reasons for lower resistance to InV after Kn administration is significant disbalance between the functional activity of AMph and Nph populations. Ineffective AMph clearance of the lungs from InV and excessive number of recruited Nph and products of tissue disintegration may favor the development of respiratory failure and infectious-toxic shock, which leads to lower resistance in animals which receive Kn before InV infection.
Collapse
|
34
|
Zhukov VA, Shishkina LN, Sergeev AA, Fankin IV, Smetannikova MA, P'iankov OV, Petrishchenko VA, Sergeev AN, Vorob'ev AA. [A study of possibility to predict the sensitivity of different respiratory tract divisions to influenza]. Vestn Ross Akad Med Nauk 2007:32-7. [PMID: 17601039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
To predict a potential value of a viral ID50 for a macro-organism of interest (e.g. humans), it is necessary to determine in vitro two parameters of the interaction of the virus with susceptible cells of the host, i.e. the probability of the virus' productive absorption on a susceptible cell and the average virus yield per cell. A different macroorganism (a model animal) and primary cells obtained from it can be used to determine the value of a scale factor, which accounts for the difference between the values of the probability of the virus' absorption measured in vivo and in vitro. An original mathematical model is used to convert the above-mentioned data to ID50 for the macroorganism of interest. It was shown that the method of cultivating influenza virus (A/ Aichi/2/68) in primary suspension culture of respiratory tract cells of rats and two breeds of mice may be used to estimate potential human susceptibility to novel influenza viruses. This work was sponsored by DAPRA, USA, and performed under the contract 450p to the International Science and Technology Center, Moscow.
Collapse
|
35
|
Vdovichenko GV, Petrishchenko VA, Sergeev AA, Kim II, Fatiukhina OE, Shishkina LN, Bogriantseva MP, Pliasunov IV, Sviatchenko VA, Kiselev NN, Kolokol'tsova TD, Riabchikova EI, Sergeev AN, Netesov SV. [Preclinical studies of the anticancer adenovirus cancerolysin preparation]. Vopr Virusol 2006; 51:39-42. [PMID: 17214082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
The anticancer drug Cancerolysin has been developed, by using the mutant Adel2 variant of human adenovirus serotype 5 designed at the State Research Center of Virology and Biotechnology. Cancerolysin possesses a high degree of replication activity for complementary cells 293 and p53-deficient tumor cells and, at the same time, has significant replication limitations in normal human cells. Preclinical studies of the drug on laboratory animals (mice, rabbits, guinea pigs) have demonstrated its harmlessness and safety. When stored at -40 and -70 degrees C, the drug showed no significant activity throughout the control observational period (1 year).
Collapse
|
36
|
Pliasunov IV, Sergeev AN, Sergeev AA, Petrishchenko VA, Shishkina LN, Generalov VV, Safatov AS, Sandakhchiev LS, Udut VV, Mel'nikov SA, Podkuĭko VN. [Clinical trials of oral recombinant bivaccine against variola and hepatitis B during double vaccination]. Vopr Virusol 2006; 51:31-5. [PMID: 16756176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Clinical trials of oral live recombinant embryonic variola and hepatitis B bivaccine as tablets (Revax-BT) were performed. When volunteers were prevaccinated with oral variola vaccine first in a small dose and, 7, 14, 30, 90, and 180 days later, in a larger dose, a slight reactoginicity was sometimes observed after the first vaccination (with a small dose) whereas revaccination with a larger dose did not give rise to any clinical manifestations. A month after vaccination, a protective level of virus-neutralizing antibodies to vaccinia virus (VV) was observed in 90-100% of the volunteers twice immunized with the bivaccine (in a small dose and in a larger one at an administration intervals of 1-2 weeks under remote revaccination while 6-9 months following vaccination, this level was recorded in 80% of the volunteers. A month following vaccination, 50-55% seroconversion to VV was observed in the volunteers twice immunized with the bivaccine (at an interval of 1 or 3-6 months). Cellular immunity to VV was low (0-20%). Double immunization of volunteers with the oral bivaccine under remote vaccination failed to produce the significant levels of humoral and cellular immune responses to hepatitis B markers. Recombinant VV was not recorded in any blood, saliva, and urine samples taken in the volunteers twice immunized with the bivaccine.
Collapse
|
37
|
Smetannikova MA, Shishkina LN, Sergeev AA, Fankin IV, Bulychev LG, Kolesnikova LV, Omigov VV, Malkova EM, Petrishchenko VA, Sergeev AN, Zhukov VA. [The influence of glucocorticoid immunosuppression on the course of experimental influenza pneumonia]. Vestn Ross Akad Med Nauk 2006:22-7. [PMID: 16869256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The study demonstrates the effects of kenalog (Kn), a synthetic glucocorticoid hormone, on the course of virus A/Aichi/2/68 influenza in white mice. In doses of 5 and 10 mg/kg, Kn reduced the weight of the adrenal glands, thymus and spleen, which was accompanied by decrease of the resistance to the mentioned virus, judging by LD50 decrease vs. this index in the control infected group. Besides, four days after infecting with 5 LD50 of influenza virus (IV), lung virus and interferon titers were significantly lower in mice pretreated with Kn vs. mice treated with placebo. Lung cell susceptibility to IV in vitro was identical in mice treated with Kn or placebo. In ultrathin lung sections of IV-infected mice, both experimental and control ones, there was virus budding in bronchial epithelium cells and type I and II alveolocytes. Analysis of inflammatory effusion compound in semithin lung sections 6 days after IV infection, found a substantially smaller number of mature alveolar macrophages (AM) and a bigger number of neutrophiles vs. infected controls. The authors reckon that higher mortality of mice pretreated with Kn before infecting, is caused not by enhancement of IV reproduction in target lung cells during influenza development, but by the contribution of other pathogenic factors. One of those may be increase of neutrophilic migration into the lungs; neutrophiles are more able to realize their significant destructive potential under the condition of reduction in the clearing function of AM and IV infection.
Collapse
|
38
|
Agranovski IE, Safatov AS, Borodulin AI, Pyankov OV, Petrishchenko VA, Sergeev AN, Agafonov AP, Ignatiev GM, Sergeev AA, Agranovski V. Inactivation of viruses in bubbling processes utilized for personal bioaerosol monitoring. Appl Environ Microbiol 2005; 70:6963-7. [PMID: 15574888 PMCID: PMC535147 DOI: 10.1128/aem.70.12.6963-6967.2004] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A new personal bioaerosol sampler has recently been developed and evaluated for sampling of viable airborne bacteria and fungi under controlled laboratory conditions and in the field. The operational principle of the device is based on the passage of air through porous medium immersed in liquid. This process leads to the formation of bubbles within the filter as the carrier gas passes through and thus provides effective mechanisms for aerosol removal. As demonstrated in previous studies, the culturability of sampled bacterium and fungi remained high for the entire 8-h sampling period. The present study is the first step of the evaluation of the new sampler for monitoring of viable airborne viruses. It focuses on the investigation of the inactivation rate of viruses in the bubbling process during 4 h of continuous operation. Four microbes were used in this study, influenza, measles, mumps, and vaccinia viruses. It was found that the use of distilled water as the collection fluid was associated with a relatively high decay rate. A significant improvement was achieved by utilizing virus maintenance fluid prepared by using Hank's solution with appropriate additives. The survival rates of the influenza, measles, and mumps viruses were increased by 1.4 log, 0.83 log, and 0.82 log, respectively, after the first hour of operation compared to bubbling through the sterile water. The same trend was observed throughout the entire 4-h experiment. There was no significant difference observed only for the robust vaccinia virus.
Collapse
Affiliation(s)
- I E Agranovski
- Faculty of Environmental Sciences, Griffith University, Brisbane, Queensland, Australia.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Radaeva IF, Vdovichenko GV, Sergeev AA, Kolokol'tsova TD, Nechaeva EA, Sergeev AN, Ternovoĭ VA, Netesov SV. [Characteristics of continuous cell line 293 used for preparation of antineoplastic agent Cancerolysin]. Antibiot Khimioter 2005; 50:7-10. [PMID: 16526602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Certification of continuous cell 293 culture used for cultivation of antineoplastic preparation Cancerolysin was carried out. The seeding and working banks of cells 293 were established and deposited for storage at the Vector Centre. The cells were certified in accordance with the WHO requirements. The cell 293 culture was shown to have high proliferative activity; morphology typical of the line; its karyotype and enzymogram are typical of human cells; the culture is not contaminated with bacteria, fungi, mycoplasms and viruses including oncogenic ones; it has high virus-producing activity; it preserves stability of all the biological properties in long-term cultivation. The seeding and working cell banks were recommended for the use in production of drugs for the treatment of oncologic patients.
Collapse
|
40
|
Sergeev AA, Sergeev AN, Petrishchenko VA, Shishkina LN, Kochneva GV, Zhukov VA, Evtin NK, P'iankov OV, Sandakhchiev LS, Akinfeeva LA, Udut VV, Sherstoboev EI, Gol'dberg ED, Mel'nikov SA, Podkuĭko VN, Maksimov VA. [Reactogenicity, safety and immunogenicity of a recombinant bivaccine against smallpox and hepatitis B in limited clinical trials]. Vopr Virusol 2004; 49:22-6. [PMID: 15529859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
The reactogenicity of the embryonic live recombinant variola and hepatitis B bivaccine as tablets (Revax-BT) as well as its safety and immunogenicity were evaluated in clinical trials made in volunteers who had previously immunized or not with variola vaccine. A preliminary conclusion was made on a lack of side effects and drug safety in primary vaccination and been revaccination with low and high doses. Primary immunization of volunteers and as bivaccination with high doses stimulated the most pronounced immune response to the vaccine virus versus such effect observed in immunization of volunteers with low vaccine doses. Humoral immune response to HBs was observed in 75% of volunteers of both groups after as bivaccination. Such response was most pronounced in examinees immunized with low vaccine doses versus those who received high bivaccine doses. At the same time, no protective levels of humoral immunity response to HBs Ag were observed in volunteers first vaccinated.
Collapse
|
41
|
Glotov AG, Glotova TI, Sergeev AA, Belkina TV, Sergeev AN. [Antiviral activity of different drugs in vitro against viruses of bovine infectious rhinotracheitis and bovine diarrhea]. Vopr Virusol 2004; 49:43-6. [PMID: 15529864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
In vitro experiments studied the antiviral activity of 11 different drugs against viruses of bovine infective rhinotracheitis (BIRT) and bovine viral diarrhea (BVD). The 50% inhibiting concentrations of the test agents were determined in the monolayers of MDBK and KCT cell cultures. Only did phosprenyl show a virucidal activity against BIRT virus. All the tested drugs significantly inhibited the reproduction of BIRT virus in the sensitive MDBK cell cultures. Thus, bromuridin, acyclovir, ribavirin and methisazonum inhibited the virus by > or = 100,000 times; liposomal ribavirin, gossypolum, anandinum, polyprenolum, phosprenyl, by 1000-10,000 times; eracond and argovit, by 100 times. In experiments on BVD virus, the cultured KCT cells displayed the antiviral activity of bromuridin, phosprenil, polyprenolum, methisazonum, acyclovir, gossypolum, argovit, and ribavirin (in two variants), which caused a statistically significant (100-10,000-fold) decrease in the productive activity of this virus. Eracond and anandid proved to be ineffective.
Collapse
|
42
|
Glotov AG, Glotova TI, Sergeev AA, Sergeev AN. [Study of antiviral activity of different drugs against bovine herpes virus and pestivirus]. Antibiot Khimioter 2004; 49:6-9. [PMID: 15628795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
In vitro antiviral activity of 11 different drugs against the viruses of infectious bovine rhionotracheitis (IBR) and bovine viral diarrhea (BVD) was studied. The ID50 of the drugs were determined in monolayers of cell cultures MDBK and KCT: 20 mcg/ml for anandin, 25 mcg/ml for polyprenole, 50 mcg/ml for bromuridin, methisazone, aciclovir, gossypole, ribavirin and liposomal ribavirin, 100 mcg/ml for eracond, and 200 mcg/ml for phosprenil and argovit. Phosprenil was the only drug that showed virucidal activity against the IBR virus. All the drugs inhibited reproduction of the IBR virus in sensitive cell culture MDBK: 100,000-fold inhibition by bromuridin, aciclovir, ribavirin and methisazone, 1000-10000-fold inhibition by liposomal ribavirin, gossypole, anandin, polyprenole and phosprenil, 100-fold inhibition by eracond and argovit. As for the BVD virus, bromuridin, phosprenil, polyprenole, methisazone, aciclovir, gossypole, argovit, ribavirin and liposomal ribavirin also showed their activity in cell culture KCT (100-10,000-fold inhibition). The other drugs were ineffective.
Collapse
|
43
|
Zhukov VA, Safatov AS, P'iankov OV, Toporkov VS, Sergeev AA, Kiselev SA, Iashin VA, Beliaev NM, Riabchikova EI, Zhukov AV, Shishkina LN, Medvedev AA, Petrishchenko VA, Sergeev AN, Vorob'ev AA. [A new setup for the generation and studies of mono-disperse microbiological aerosols in medical-and-biological research]. Vestn Ross Akad Med Nauk 2004:11-5. [PMID: 15455684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
A setup for the generation and studies of mono-disperse microbiological aerosols is described in the paper. Coefficients of 3 microm aerosol deposition in the respiratory tract of mice and rats were refined by using the above setup. The probability of deposition of such particles in the trachea and lungs of mice was proven to be equal to 1.2 +/- 0.1% and 2.6 +/- 0.2%, respectively. The probability for rats was equal to 3.2 +/- 0.2 and 11.8 +/- 0.9%, respectively. The distribution of deposited aerosol particles was determined by electron microscopy.
Collapse
|
44
|
Sergeev AA, Shishkina LN, Zhukov VA, Sergeev AN, Petrishchenko VA, Fankin IV, P'iankov OV, Riabchikova EI, Malkova EM, Vorob'ev AA. [Pulmonary cell susceptibility in mice and rats to influenza virus when infected in vivo and in vitro]. Vestn Ross Akad Med Nauk 2004:15-8. [PMID: 15455685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/30/2023]
Abstract
The purpose of the case study was to evaluate comparatively the relative contribution of cell susceptibility and the inhibiting effect of factors of pulmonary epithelial lining in mice and rats to influenza virus A/Aichi/2/68 (H3N2) adapted to mice as related with the development of infection process in the lungs of experimental animals when infected in vivo and in vitro. Mice and rats were infected aerogenically with different doses of influenza virus. The primary cell-culture suspensions sampled from the lungs of mice and rats were used to study the adsorption and dynamics of influenza virus production in infection by different dose of influenza virus in vitro. The cell suspensions were shown to be able to produce the influenza virus for as long as 48 hours after infection. It was for the first time that the results denoted the identical susceptibility of primary pulmonary cells in mice and rats to influenza virus. A lower pulmonary susceptibility to influenza virus in rats versus mice could be indicative of that the surface factors of epithelial lining contribute essentially to shaping the pulmonary susceptibility to influenza virus since there is no difference of the susceptibility of pulmonary cells to influenza virus between the two above animals' species.
Collapse
|
45
|
Sergeev AN, Petrishchenko VA, P'iankov OV, Shishkina LN, Sergeev AA, Kachko AV, Kiselev NN, Ternovoĭ VA, Sviatchenko VA. [Possibilities of culturing mutant variants of Ade12 adenoviruses in 293 cell culture]. Vopr Virusol 2003; 48:30-3. [PMID: 14708228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
The results of polymerase chain reaction and of DNA sequencing of the Adel2 mutant variant of adenovirus serotype 5, passaged 10 times and capable of selectively infecting and lysing the p53-deficient human tumor cells, are indicative of a high stability of its genotype and of the phenotypic properties acquired by it in successive passage on 293 cells. The absence of admixtures of wild-type adenovirus was clearly shown in the cultivation and passage processes. It was revealed in an experimental analysis of virus-productive properties of the studied continuous cell culture 293 by using the method of multilayer cultivation, that the maximal Adel2 yield is obtained at the 50% cytopathic effect. Virus doses, that are effective for cell-culture contamination, are within a range of 100-10 TCPE50 per cell. In order to spare the viral material, the infecting dose of 10 TCPE50 per cell was chosen to infect a cell monolayer.
Collapse
|
46
|
Mikhaĭlova LM, Koniaeva ON, Chlenova EL, Merkulova IB, Ermakova NP, Gavrilova TN, Sergeev AA. [Preclinical toxicological study of theraphthal-Lio and binary catalytic system "theraphthal-Lio+ascorbic acid"]. Vopr Onkol 2002; 47:695-700. [PMID: 11826491] [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: 02/23/2023]
Abstract
Pre-clinical toxicologic studies were conducted of a new drug teraphtal-Lio (TPh) and a teraphtal-Lio + ascorbic acid (TPh + AA) catalytic system recommended for binary catalytic therapy of malignant tumors. Quantitative criteria for "acute" and "chronic" toxicity of TPh and TPh + AA were established, which describe their toxic effects in single or multiple application. The coefficient of specific sensitivity and cumulation index for TPh and TPh + AA were determined. The toxicodynamic characteristics of TPh and TPh + AA were investigated. The results were used to prognose pulmonary, cardio-vascular, hemato- and hepatotoxic as well as hemodynamic and ophthalmologic disorders and functional changes in the central nervous system involved in clinical use of TPh and TPh + AA.
Collapse
Affiliation(s)
- L M Mikhaĭlova
- N.N. Blokhin Center for Oncology Research, Russian Academy of Medical Sciences, Moscow
| | | | | | | | | | | | | |
Collapse
|
47
|
Mikhaĭlova LM, Merkulova IB, Ermakova NP, Koniaeva OI, Chlenova EL, Zontov SV, Sergeev AA. [Toxicity of binary "theraphthal-Lio+ascorbic acid" (TPH+AA) catalytic system during different methods of regional intra-arterial administration in dogs]. Vopr Onkol 2002; 47:710-4. [PMID: 11826494] [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: 02/23/2023]
Abstract
A binary teraphtal-Lio + ascorbic acid (Tph + AA) catalytic system has been tested for untoward side-effects using three procedures of regional intraarterial infusion on dogs. On the basis of the data on local-tissue and overall toxicity, an optimal one was selected and recommended for clinical use.
Collapse
Affiliation(s)
- L M Mikhaĭlova
- N.N. Blokhin Center for Oncology Research, Russian Academy of Medical Sciences, Moscow
| | | | | | | | | | | | | |
Collapse
|
48
|
Malakhovskiĭ VN, Bokk MI, Sergeev AA. [Regulatory disorders of locomotor functions in dogs during prolonged irradiation in a wide range of dose rates]. Radiobiologiia 1991; 31:107-13. [PMID: 2008508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
A biphase pattern of the development of locomotor disturbances, connected with the primary response and cerebral radiation syndrome, was demonstrated in experiments with dogs subjected to prolonged irradiation, just as it was observed after acute exposure. Dose thresholds for the development of these states were somewhat higher with the prolonged irradiation. The time of the appearance of disturbances increased due to the delay of achievement the dose threshold increase with dose-rate decrease, the time interval needed for the development of the corresponding pathological process being unchanged. Due to the repair process the above syndromes were not manifested until the appropriate dose-rate thresholds were reached.
Collapse
|
49
|
Sergeev AA, Chernukha IG, Shakhanina KL, Gol'denshteĭn ZA, Potashnikova EI. [The diagnosis of antileptospiral antibodies in human subjects by solid-phase immunoenzyme analysis]. Zh Mikrobiol Epidemiol Immunobiol 1989:66-71. [PMID: 2683525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The possibility of using the enzyme-linked immunosorbent assay (ELISA) for the diagnosis of leptospirosis has been shown. This method has proved to be more simple and sensitive than the leptospiral microagglutination and lysis test. The data on obtaining genus-specific leptospiral antigens are presented. As revealed in this study, the antigens obtained by the complex treatment of microbial cells with ultrasound and detergents show the maximum activity in ELISA. The optimum parameters of the ELISA system for the diagnosis of leptospirosis have been established.
Collapse
|
50
|
Malakhovskii VN, Bobyr' BA, Bokk MM, Mikhaĭlichenko PP, Sergeev AA. [Various physiological characteristics of primary radiation reaction and its apomorphine model]. Kosm Biol Aviakosm Med 1988; 22:77-81. [PMID: 3226100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Experiments were performed on 52 dogs exposed to irradiation at a dose of 5-80 Gy or injected with 0.02-0.5 mg/kg apomorphine. The apomorphine effect was also studied in 18 healthy male volunteers. Apomorphine injected to dogs reproduced to a certain extent the pattern and sequence of gastrointestinal, sensorimotor and circulatory lesions constituting the primary radiation reaction. The apomorphilne dosage ED50-ED90, in terms of vomiting, roughly corresponded to irradiation at a dose of 5-10 Gy. The basic difference was that the time of onset and duration of specific symptoms after irradiation were several times longer than after apomorphine injection. It is suggested that the common pathogenetic component in the primary reaction to irradiation and its apomorphine model is the phasic change in the activities of brain dopaminergic systems.
Collapse
|