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Изучение Ð¼ÐµÑ Ð°Ð½Ð¸Ð·Ð¼Ð° действия препаратов природного Ð¿Ñ€Ð¾Ð¸ÑÑ Ð¾Ð¶Ð´ÐµÐ½Ð¸Ñ в отношении респираторно-синцитиального вируса

выпускная квалификационная работа магистра

Изучение Ð¼ÐµÑ Ð°Ð½Ð¸Ð·Ð¼Ð° действия препаратов природного Ð¿Ñ€Ð¾Ð¸ÑÑ Ð¾Ð¶Ð´ÐµÐ½Ð¸Ñ в отношении респираторно-синцитиального вируса

Abstract

Данная работа посвящена изучению механизма действия противовирусного препарата K142. Респираторно-синцитиальный вирус представляет серьезную угрозу для уязвимых групп людей, таких как младенцы и пожилые люди. Разработка новых этиотропных методов лечения респираторно-синцитиального вируса крайне актуальна, так как не существует универсального метода борьбы с инфекцией. В данном исследовании проводилась оценка влияния препарата на различные стадии вирусного цикла in vitro методом конфокальной микроскопии, проводился эксперимент с целью получения устойчивого штамма респираторно-синцитиального вируса, а также оценка активности препарата in vivo на модели респираторно-синцитиальной инфекции у линейных мышей. Данные, полученные с помощью конфокальной микроскопии, подтверждают предположения, изложенные в предыдущих исследованиях препарата К142 о его мишени – поверхностном F белке респираторно-синцитиального вируса. Штамм вируса, пассировавшийся в присутствии препарата не показал достоверной устойчивости к его действию. Результаты опытов in vivo показывают слабое противовирусную активность в группе, получавшей препарат интраназально, это может говорить о недостаточно хорошей биодоступности данной молекулы. Дальнейшее усовершенствование формулы может увеличить эффективность препарата in vivo и вывести его на следующую стадию доклинических испытаний.

This work is devoted to studying the mechanism of action of the antiviral drug K142. Respiratory syncytial virus poses a serious threat to vulnerable groups of people such as infants and the elderly. The development of new etiotropic methods for the treatment of respiratory syncytial virus is extremely relevant since there is no universal method to fight infection. In this study, the effect of the drug on various stages of the viral cycle in vitro was assessed by confocal microscopy, an experiment was conducted to obtain a resistant strain of respiratory syncytial virus, and the activity of the drug in vivo was evaluated in a model of respiratory syncytial infection in linear mice. The data obtained using confocal microscopy confirm the assumptions made in previous studies of the K142 preparation about its target, the surface F protein of the respiratory syncytial virus. The virus strain passaged in the presence of the drug did not show significant resistance to it. The results of in vivo experiments show a weak antiviral activity in the group that received the drug intranasally, this may indicate that the bioavailability of this molecule is not good enough. Further modification of the formula may increase the in vivo efficacy of the drug and bring it to the next stage of preclinical trial.

Keywords

coumarins, кумарины, респираторно-синцитиальный вирус, изучение противовирусной активности in vivo, chemotherapy for viral infections, resistant strain, конфокальная микроскопия, studying the antiviral activity in vivo, Ñ Ð¸Ð¼Ð¸Ð¾Ñ‚ÐµÑ€Ð°Ð¿Ð¸Ñ Ð²Ð¸Ñ€ÑƒÑÐ½Ñ‹Ñ Ð¸Ð½Ñ„ÐµÐºÑ†Ð¸Ð¹, confocal microscopy, устойчивый штамм, respiratory syncythial virus

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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