RT Journal Article
SR Electronic
T1 Trimer IgG and neutralising antibody response to COVID-19 mRNA vaccination in individuals with sarcoidosis
JF ERJ Open Research
JO erjor
FD European Respiratory Society
SP 00025-2022
DO 10.1183/23120541.00025-2022
VO 9
IS 1
A1 Christen L. Vagts
A1 Yi-Shin Chang
A1 Christian Ascoli
A1 Jessica M. Lee
A1 Kai Huang
A1 Yue Huang
A1 Ruth A. Cherian
A1 Nandini Sarup
A1 Samantha R. Warpecha
A1 Russell Edafetanure-Ibeh
A1 Md-Ruhul Amin
A1 Tasmin Sultana
A1 Mahmood Ghassemi
A1 Nadera J. Sweiss
A1 Richard Novak
A1 David L. Perkins
A1 Patricia W. Finn
YR 2023
UL http://openres.ersjournals.com/content/9/1/00025-2022.abstract
AB Background Individuals with sarcoidosis are at higher risk for infection owing to underlying disease pathogenesis and need for immunosuppressive treatment. Current knowledge as to how subjects with sarcoidosis respond to different forms of vaccination is limited. We examined quantitative and functional antibody response to COVID-19 vaccination in infection-naive subjects with and without sarcoidosis.Methods Our prospective cohort study recruited 14 subjects with biopsy-proven sarcoidosis and 27 age–sex matched controls who underwent a two-shot series of the BNT162b2 mRNA vaccine at the University of Illinois at Chicago. Baseline, 4-week and 6-month trimer spike protein IgG and neutralising antibody (nAb) titres were assessed. Correlation and multivariate regression analysis was conducted.Results Sarcoidosis subjects had a significant increase in short-term antibody production to a level comparable to controls; however, IgG titres significantly declined back to baseline levels by 6 months. Corresponding neutralising assays revealed robust nAb titres in sarcoidosis subjects that persisted at 6 months. A significant and strong correlation between IgG and nAb titres across all time points was observed in the control group. However within the sarcoidosis group, a significant but weak correlation between antibody levels was found. Overall, IgG levels were poor predictors of nAb titres at short- or long-term time points.Conclusions Sarcoidosis subjects exhibit nAb induced by the BNT162b2 mRNA SARS-CoV-2 vaccine at levels comparable to controls that persists at 6 months indicating conferred immunity. Trimer IgG levels are poor predictors of nAb in subjects with sarcoidosis. Studies of further antibody immunoglobulins and subtypes warrant investigation.While subjects with sarcoidosis have a diminished quantitative antibody (anti-trimer) response to the BNT162b2 mRNA #COVID19 vaccine, their functional neutralising antibody response is comparable to controls, indicating conferred immunity https://bit.ly/3TtqUQZ