Natalia Alekseevna Zeninskaya

Ms. Natalia Alekseevna Zeninskaya


Research Focus & Metrics

Academic Career Length

11Years (2016-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 June 2024 in Toxins
Verified
Journal Article
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NZNatalia Alekseevna Zeninskaya
Natalia Alekseevna Zeninskaya
ARAlena K Riabko
Alena K Riabko
MMMaksim A. Marin
Maksim A. Marin
TKTatyana I. Kombarova
Tatyana I. Kombarova
MSMaria A. Shkuratova
Maria A. Shkuratova
VFVictoria V. Firstova
Victoria V. Firstova
Botulism is one of the most serious food intoxications, manifesting as prolonged paralytic conditions. This disease is usually the result of the consumption of poor quality canned or smoked foods, so the inhabitants of many countries of the world are exposed to the risk of this kind of poisoning every year. In view of the severity of poisonings caused by botulinum neurotoxins, monoclonal antibodies (mAbs) show great promise because of their targeting action, lack of allergic reactions and serum sickness. The use of a cocktail of mAbs increases the “functional specificity” of their mixture, allowing them to bind to the active domains of different toxin chains and block their action. In this work, we obtained 14 murine mAbs to the catalytic and receptor-binding domain of botulinum toxin type A. The Sp2/0-Ag14 murine myeloma cell line and splenocytes from immunized mice of the BALB/c line were used as fusion partners. We have shown that the selected cocktail of three antibodies neutralizes native toxin more effectively than antibodies separately—complete neutralization is achieved at a toxin dose of 3LD50 and partial neutralization at 5LD50. We presume that this cocktail may be promising as a prototype for the creation of a therapeutic drug capable of neutralizing the toxin in the blood of patients.

3 October 2022 in Molecular Genetics, Microbiology and Virology
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Journal Article
Closed access
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NZNatalia Alekseevna Zeninskaya
Natalia Alekseevna Zeninskaya
ARA. K. Riabko
A. K. Riabko
MMM. A. Marin
M. A. Marin
TKT. I. Kombarova
T. I. Kombarova
IMI. P. Mitsevich
I. P. Mitsevich
ISI. G. Shemyakin
I. G. Shemyakin
The purpose of this work was to obtain genus-specific monoclonal antibodies against the Legionella spp. recombinant PAL protein, which will subsequently al

5 October 2016 in Annals of the Russian academy of medical sciences
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Journal Article
Open access
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NZNatalia Alekseevna Zeninskaya
Natalia Alekseevna Zeninskaya
AKA V Kolesnikov
A V Kolesnikov
ARA K Ryabko
A K Ryabko
ISI G Shemyakin
I G Shemyakin
ИДИван Алексеевич Дятлов
Иван Алексеевич Дятлов
AKA V Kozyr
A V Kozyr
Aptamers are short single-stranded oligonucleotides which are selected via targeted chemical evolution in vitro to bind a molecular target of interest. The aptamer selection technology is designated as SELEX (Systematic evolution of ligands by exponential enrichment). SELEX enables isolation of oligonucleotide aptamers binding a wide range of targets of interest with little respect for their nature and molecular weight. A number of applications of aptamer selection were developed ranging from biosensor technologies to antitumor drug discovery. First aptamer-based pharmaceutical (Macugen) was approved by FDA for clinical use in 2004, and since then more than ten aptamer-based drugs undergo various phases of clinical trials. From the medicinal chemist’s point of view, aptamers represent a new class of molecules suitable for the development of new therapeutics. Due to the stability, relative synthesis simplicity, and development of advanced strategies of target specific molecular selection, aptamers attract increased attention of drug discovery community. Difficulties of the development of next-generation antibiotics basing on the conventional basis of combinatorial chemistry and high-throughput screening have also amplified the interest to aptamer-based therapeutic candidates. The present article reviews the investigations focused on the development of antibacterial aptamers and discusses the potential and current limitations of the use of this type of therapeutic molecules.

1 January 2023 in Immunologiya
Verified
Journal Article
Open access
TIT.A. Ivashchenko
T.A. Ivashchenko
YRYa.O. Romanenko
Ya.O. Romanenko
MMM.A. Marin
M.A. Marin
AKAlena Kartseva
Alena Kartseva
MSM.V. Silkina
M.V. Silkina
VFVictoria V. Firstova
Victoria V. Firstova
Оценка эффективности различных адъювантов при получении мышиных моноклональных антител к рецептор-связывающему домену S-белка SARS-CоV-2

1 January 2021 in Immunologiya
Verified
Journal Article
Closed access
SWState Research Center for Applied Microbiology & Biotechnology of Federal Service of Surveillance in the Field of Consumer Right Protection & Human Welfare
State Research Center for Applied Microbiology & Biotechnology of Federal Service of Surveillance in the Field of Consumer Right Protection & Human Welfare
YRYa.O. Romanenko
Ya.O. Romanenko
MMM.A. Marin
M.A. Marin
ARAlena K Riabko
Alena K Riabko
AKAlena Kartseva
Alena Kartseva
VFVictoria V. Firstova
Victoria V. Firstova
Токсин-нейтрализующая активность моноклональных антител против летального токсина Bacillus anthracis

1 January 2018 in Molecular Genetics Microbiology and Virology (Russian version)
Verified
Journal Article
Closed access
AKA. V. Kozyr
A. V. Kozyr
LLL. A. Lisitskaya
L. A. Lisitskaya
ARA. K. Ryabko
A. K. Ryabko
NZNatalia Alekseevna Zeninskaya
Natalia Alekseevna Zeninskaya
MMM. A. Marin
M. A. Marin
AKA. V. Kolesnikov
A. V. Kolesnikov
Липид-1а-фосфатазы LpxE отщепляют фосфатную группу в первом положении липида А липополисахарида грамотрицательных бактерий, что снижает токсичность и реактогенность бактериального эндотоксина при сохранении его иммуногенности. Обработка данными ферментами препаратов рекомбинантных белков, полученных в бактериальных продуцентах, например, в E.coli, может найти применение в технологиях очистки различных фармацевтических субстанций, в первую очередь, различных белковых компонентов вакцин. Данная работа посвящена созданию эффективного метода получения растворимого белка LpxE F. tularensis в гетерологичной системе экспрессии на базе E.coli. Оптимизация бактериальной продукции фермента LpхE достигнута за счет создания химерного белка SUMO-LpxE, в котором полипептид SUMO выступает в роли катализатора фолдинга и носителя аффинной мишени для очистки продукта экспрессии. Дополнительное повышение уровня синтеза LpxE и снижение его токсичности для бактериального штамма достигнуто на фоне суперпродукции бактериальных периплазматических шаперонов, кодируемых вспомогательной низкокопийной плазмидой. Последующая хроматографическая очистка целевого рекомбинантного белка включает использование аффинной металл-хелатной хроматографии и этап отщепления протеазой SUMO пептида SUMO, несущего N-концевой пептид His6 c восстановлением природной первичной структуры фермента. Разработанный метод позволяет получить высокоочищенный активный фермент LpxE F.tularensis с выходом 0,26 г с литра бактериальной культуры без...