Patent number: 12077572
Abstract: The present invention relates to monoclonal antibodies for a spike protein of the Middle East respiratory syndrome coronavirus (MERS-CoV), and a use thereof. Particularly, monoclonal antibodies 77-A5, 77-A6, 90-A3, 90-A9, 90-B2, 90-B7, 90-C4, 90-E5, 90-E6, 90-F1 and 90-F2 according to the present invention have excellent attachment force with respect to a full-length spike protein of MERS-CoV and the S1 domain of the protein, and, of the monoclonal antibodies, the monoclonal antibodies 90-F1, 90-E5, 90-E6, 90-F2, 77-A5 and 77-A6 have excellent attachment force with respect to an RBD antigen of MERS-CoV. Also, the antibodies 77-A5, 77-A6, 90-E5, 90-E6, 90-F1 and 90-F2 exhibit neutralizing capacity with respect to a MERS pseudovirus and MERS-CoV, and the antibodies 90-B2 and 90-B7 exhibit neutralizing capacity only with respect to MERS-CoV. Further, the monoclonal antibodies have a particular monomeric form, and have excellent stability and thus may be useful for treating or diagnosing MERS.
Type:
Grant
Filed:
September 25, 2022
Date of Patent:
September 3, 2024
Assignees:
THE UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY, DEPARTMENT OF HEALTH AND HUMAN SERVICES, KOREA (CENTER FOR DISEASE CONTROL AND PREVENTION)
Inventors:
Hansaem Lee, Janghoon Choi, Sungsoon Kim, Lingshu Wang, Barney Graham, John R Mascola
Publication number: 20230265169
Abstract: The present invention relates to monoclonal antibodies for a spike protein of the Middle East respiratory syndrome coronavirus (MERS-CoV), and a use thereof. Particularly, monoclonal antibodies 77-A5, 77-A6, 90-A3, 90-A9, 90-B2, 90-B7, 90-C4, 90-E5, 90-E6, 90-F1 and 90-F2 according to the present invention have excellent attachment force with respect to a full-length spike protein of MERS-CoV and the S1 domain of the protein, and, of the monoclonal antibodies, the monoclonal antibodies 90-F1, 90-E5, 90-E6, 90-F2, 77-A5 and 77-A6 have excellent attachment force with respect to an RBD antigen of MERS-CoV. Also, the antibodies 77-A5, 77-A6, 90-E5, 90-E6, 90-F1 and 90-F2 exhibit neutralizing capacity with respect to a MERS pseudovirus and MERS-CoV, and the antibodies 90-B2 and 90-B7 exhibit neutralizing capacity only with respect to MERS-CoV. Further, the monoclonal antibodies have a particular monomeric form, and have excellent stability and thus may be useful for treating or diagnosing MERS.
Type:
Application
Filed:
September 25, 2022
Publication date:
August 24, 2023
Inventors:
Hansaem Lee, Janghoon Choi, Sungsoon Kim, Lingshu Wang, Barney Graham, John R Mascola