Detailed Information on Publication Record
2023
A combination of two resistance mechanisms is critical for tick-borne encephalitis virus escape from a broadly neutralizing human antibody
SVOBODA, Pavel, Jan HAVIERNIK, Petr BEDNÁŘ, Milos MATKOVIC, Tomas Cervantes RINCO et. al.Basic information
Original name
A combination of two resistance mechanisms is critical for tick-borne encephalitis virus escape from a broadly neutralizing human antibody
Authors
SVOBODA, Pavel (203 Czech Republic, belonging to the institution), Jan HAVIERNIK (203 Czech Republic, belonging to the institution), Petr BEDNÁŘ (203 Czech Republic, belonging to the institution), Milos MATKOVIC, Tomas Cervantes RINCO, Jennifer KEEFFE, Martin PALUS, Jiri SALAT, Marianna AGUDELO, Michel C NUSSENZWEIG, Andrea CAVALLI, Davide F ROBBIANI and Daniel RŮŽEK (203 Czech Republic, guarantor, belonging to the institution)
Edition
Cell Reports, Elsevier Inc. 2023, 2211-1247
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
30102 Immunology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 8.800 in 2022
RIV identification code
RIV/00216224:14310/23:00132673
Organization unit
Faculty of Science
UT WoS
001101035500001
Keywords in English
tick-borne encephalitis; tick-borne encephalitis virus; monoclonal antibody; escape mutant; neutralization
Tags
Tags
International impact, Reviewed
Změněno: 5/4/2024 15:44, Mgr. Marie Šípková, DiS.
Abstract
V originále
Tick-borne encephalitis virus (TBEV) is a flavivirus that causes human neuroinfections and represents a growing health problem. The human monoclonal antibody T025 targets envelope protein domain III (EDIII) of TBEV and related tick-borne flaviviruses, potently neutralizing TBEV in vitro and in preclinical models, representing a promising candidate for clinical development. We demonstrate that TBEV escape in the presence of T025 or T028 (another EDIII-targeting human monoclonal antibody) results in virus variants of reduced pathogenicity, characterized by distinct sets of amino acid changes in EDII and EDIII that are jointly needed to confer resistance. EDIII substitution K311N impairs formation of a salt bridge critical for T025-epitope interaction. EDII substitution E230K is not on the T025 epitope but likely induces quaternary rearrangements of the virus surface because of repulsion of positively charged residues on the adjacent EDI. A combination of T025 and T028 prevents virus escape and improves neutralization.
Links
LM2018127, research and development project |
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