Antivirusnaya sistema vrozhdennogo immuniteta: patogenez i lecheniye COVID-19

Author:

Казимирский А. Н.1,Салмаси Ж. М.1,Порядин Г. В.1

Affiliation:

1. Rossiyskiy natsional'nyy issledovatel'skiy meditsinskiy universitet imeni N. I. Pirogova, Moskva, Rossiya

Abstract

V obzore predstavlena kontseptsiya antivirusnoy sistemy vrozhdennogo immuniteta i opisany glavnyye strukturnyye komponenty etoy sistemy v organizme cheloveka, deystvuyushchey protiv RNK-soderzhashchikh virusov. Antivirusnaya sistema vrozhdennogo immuniteta vklyuchayet v sebya dva glavnykh komponenta: mitokhondrial'nyy antivirusnyy sensor (MAVS) — belok naruzhnoy membrany mitokhondriy i neytrofily perifericheskoy krovi, sposobnyye formirovat' neytrofil'nyye ekstrakletochnyye lovushki. V zavisimosti ot puti aktivatsii MAVS pri infitsirovanii kletki RNK-soderzhashchim virusom razvivayutsya dva vozmozhnykh varianta yeye gibeli — apoptoz ili degeneratsiya kletok s nekroticheskimi izmeneniyami. Razvitiye virus-indutsirovannogo apoptoza infitsirovannykh kletok vyzyvayet formirovaniye neytrofil'nykh ekstrakletochnykh lovushek, sekretsiyu vospalitel'nykh tsitokinov, generatsiyu AFK, tkanevoye povrezhdeniye, gemokoagulyatsiyu i vozniknoveniye ostrogo vospalitel'nogo protsessa s razvitiyem COVID-19-pnevmonii. Narusheniye prionopodobnoy reaktsii MAVS v otvet na virusnoye infitsirovaniye kletki zapuskayet al'ternativnyy put' aktivatsii autofagii. Kletki v usloviyakh prodolzhitel'noy aktivatsii autofagii ispytyvayut degenerativnyye izmeneniya i eliminiruyutsya iz organizma monotsitami/makrofagami, kotoryye sekretiruyut protivovospalitel'nyye tsitokiny. Takoy tip reaktsii antivirusnoy sistemy vrozhdennogo immuniteta sootvetstvuyet bessimptomnomu techeniyu zabolevaniya. Iz privedennykh naiboleye sushchestvennykh storon patogeneza koronavirusnoy infektsii COVID-19 vytekayut rekomendatsii po profilakticheskomu lecheniyu etogo opasnogo zabolevaniya. Predlagayemoye lecheniye pozvolit znachitel'no oslabit' tyazhest' zabolevaniya Covid-19 i snizit' letal'nost'.

Publisher

Pirogov Russian National Research Medical University

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