Rezultatele cercetării au fost publicate în revista Cell Reports.
Anticorpul nou identificat a fost izolat folosind limfocite de la pacienții cu COVID-19.
„Acest anticorp este unul dintre cei mai puternici identificați până acum împotriva SARS-CoV-2. (…) Anticorpul oprește procesul de replicare virală, permițând sistemului imunitar al pacientului să elimine SARS-CoV-2 din corp. Acest mecanism de protecție a fost dovedit prin teste in vivo pe hamsteri; specimenele cărora li s-a administrat anticorpul au fost protejate împotriva infecției chiar și după primirea unei doze extrem de infecțioase”, precizează reprezentanții EPFL.
Totodată, specialiștii precizează că pe lângă proprietățile sale antivirale, noul anticorp este conceput pentru a avea un efect de durată la om. Concret, acesta ar fi capabil să ofere o protecție pentru o perioadă de 4-6 luni, față de protecția de 3-4 săptămâni oferită de alți anticorpi.
„Aceasta îl face să fie o opțiune interesantă de tratament preventiv pentru persoanele nevaccinate cu risc sau pentru persoanele vaccinate care nu pot produce un răspuns imun. Pacienții imunocompromiși, cei care au fost supuși unui transplant de organe și cei care suferă de anumite tipuri de cancer ar putea fi protejați împotriva SARS-CoV-2 prin administrarea de injecții cu anticorpi de două sau trei ori pe an”, mai precizează autorii cercetării.
Studiile clinice ale medicamentului care are la bază acest tip de anticorp ar trebui să înceapă la sfârșitul anului 2022.
Foto: EPA
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