• FluTrackers.com Inc. does not provide medical advice. Information on this web site is collected from various internet resources, and the FluTrackers board of directors makes no warranty to the safety, efficacy, correctness or completeness of the information posted on this site by any author or poster. The information collated here is for instructional and/or discussion purposes only and is NOT intended to diagnose or treat any disease, illness, or other medical condition. Every individual reader or poster should seek advice from their personal physician/healthcare practitioner before considering or using any interventions that are discussed on this website. By continuing to access this website you agree to consult your personal physican before using any interventions posted on this website, and you agree to hold harmless FluTrackers.com Inc., the board of directors, the members, and all authors and posters for any effects from use of any medication, supplement, vitamin or other substance, device, intervention, etc. mentioned in posts on this website, or other internet venues referenced in posts on this website.
  • We are not asking for any donations. Do not donate to any entity who says they are raising funds for us.

Virology . Functional antibody-dependent cell mediated cytotoxicity (ADCC) responses to vaccine and circulating influenza strains following vaccina

tetano

Editor, Senior Moderator
Virology


. 2022 Feb 24;569:44-55.
doi: 10.1016/j.virol.2022.02.004. Online ahead of print.
Functional antibody-dependent cell mediated cytotoxicity (ADCC) responses to vaccine and circulating influenza strains following vaccination


Xuemin Chen[SUP] 1 [/SUP], He-Ying Sun[SUP] 2 [/SUP], Chun Yi Lee[SUP] 3 [/SUP], Christina A Rostad[SUP] 4 [/SUP], Jessica Trost[SUP] 5 [/SUP], Rodrigo B Abreu[SUP] 6 [/SUP], Michael A Carlock[SUP] 6 [/SUP], Jason R Wilson[SUP] 7 [/SUP], Shane Gansebom[SUP] 8 [/SUP], Ted M Ross[SUP] 9 [/SUP], David A Steinhauer[SUP] 10 [/SUP], Evan J Anderson[SUP] 11 [/SUP], Larry J Anderson[SUP] 12 [/SUP]



Affiliations

Abstract

Novel cell-based assays were developed to assess antibody-dependence cellular cytotoxicity (ADCC) antibodies against both vaccine and a representative circulation strain HA and NA proteins for the 2014-15 influenza season. The four assays using target cells stably expressing one of the four proteins worked well. In pre- and post-vaccine sera from 70 participants in a pre-season vaccine trial, we found ADCC antibodies and a rise in ADCC antibody titer against target cells expressing the 4 proteins but a much higher titer for the vaccine than the circulating HA in both pre-and post-vaccine sera. These differences in HA ADCC antibodies were not reflected in differences in HA binding antibodies. Our observations suggested that relatively minor changes on the subtype HA can result in large differences in ADCC activity.

Keywords: Antibody-dependent cellular cytotoxicity (ADCC); Influenza hemagglutinin (HA); Influenza neuraminidase (NA); Influenza virus vaccine.
 
Back
Top Bottom