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Low quality antibody responses in critically ill patients hospitalized with pandemic influenza A(H1N1)pdm09 virus infection.
Lu, Xiuhua; Guo, Zhu; Li, Zhu-Nan; Holiday, Crystal; Liu, Feng; Jefferson, Stacie; Gross, F Liaini; Tzeng, Wen-Ping; Kumar, Anand; York, Ian A; Uyeki, Timothy M; Tumpey, Terrence; Stevens, James; Levine, Min Z.
Afiliación
  • Lu X; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Guo Z; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Li ZN; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Holiday C; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Liu F; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Jefferson S; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Gross FL; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Tzeng WP; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Kumar A; Section of Infectious Diseases, University of Manitoba, Winnipeg, Canada.
  • York IA; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Uyeki TM; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Tumpey T; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Stevens J; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA.
  • Levine MZ; Influenza Division, National Center for Immunization and Respiratory Diseases, Centers for Disease Control and Prevention, MS H17-5, 1600 Clifton Road, Atlanta, GA, 30329, USA. mlevine@cdc.gov.
Sci Rep ; 12(1): 14971, 2022 Sep 02.
Article en En | MEDLINE | ID: mdl-36056075
Although some adults infected with influenza 2009 A(H1N1)pdm09 viruses mounted high hemagglutination inhibition (HAI) antibody response, they still suffered from severe disease, or even death. Here, we analyzed antibody profiles in patients (n = 31, 17-65 years) admitted to intensive care units (ICUs) with lung failure and invasive mechanical ventilation use due to infection with A(H1N1)pdm09 viruses during 2009-2011. We performed a comprehensive analysis of the quality and quantity of antibody responses using HAI, virus neutralization, biolayer interferometry, enzyme-linked-lectin and enzyme-linked immunosorbent assays. At time of the ICU admission, 45% (14/31) of the patients had HAI antibody titers ≥ 80 in the first serum (S1), most (13/14) exhibited narrowly-focused HAI and/or anti-HA-head binding antibodies targeting single epitopes in or around the receptor binding site. In contrast, 42% (13/31) of the patients with HAI titers ≤ 10 in S1 had non-neutralizing anti-HA-stem antibodies against A(H1N1)pdm09 viruses. Only 19% (6/31) of the patients showed HA-specific IgG1-dominant antibody responses. Three of 5 fatal patients possessed highly focused cross-type HAI antibodies targeting the (K130 + Q223)-epitopes with extremely low avidity. Our findings suggest that narrowly-focused low-quality antibody responses targeting specific HA-epitopes may have contributed to severe infection of the lower respiratory tract.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vacunas contra la Influenza / Deficiencia de IgA / Gripe Humana / Subtipo H1N1 del Virus de la Influenza A Límite: Adult / Humans Idioma: En Revista: Sci Rep Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Vacunas contra la Influenza / Deficiencia de IgA / Gripe Humana / Subtipo H1N1 del Virus de la Influenza A Límite: Adult / Humans Idioma: En Revista: Sci Rep Año: 2022 Tipo del documento: Article País de afiliación: Estados Unidos Pais de publicación: Reino Unido