Longitudinal analysis of anti-SARS-CoV-2 neutralizing antibody (NAb) titers in vaccinees using a novel giant magnetoresistive (GMR) assay.
Longitudinal analysis of anti-SARS-CoV-2 neutralizing antibody (NAb) titers in vaccinees using a novel giant magnetoresistive (GMR) assay.
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DOI:
10.1016/j.snb.2023.133773
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发表时间:
2023-07-15
影响因子:
8.4
通讯作者:
Wang, Shan X.
中科院分区:
文献类型:
--
作者:
Ng, Elaine;Choi, Christopher;Wang, Shan X.
关键词:
The COVID-19 pandemic has highlighted the need to monitor important correlates of immunity on a population-wide level. To this end, we have developed a competitive assay to assess neutralizing antibody (NAb) titer on the giant magnetoresistive (GMR) biosensor platform. We compared the clinical performance of our biosensor with established techniques such as Ortho’s VITROS Anti-SARS-CoV-2 IgG Quantitative Antibody test. Results obtained between the VITROS test and the GMR assay showed correlation (r = −0.93). We then validated the assay with patient plasma samples that had been tested using focus reduction neutralization testing (FRNT). The results obtained from our GMR assay exhibit a previously identified trend of increased NAb titers 2 weeks post-vaccination. We further evaluated NAb titers 6 months post-vaccination and observed waning neutralizing antibody titers over that time in vaccinated patients. In addition, we calibrated our assay to an arbitrary unit (IU/mL) using World Health Organization (WHO) reference plasma provided by the National Institute of Biological Standards and Control (NIBSC). Our biosensor provides highly specific and sensitive results in serum and plasma with analytical, clinical, and point-of-care (POC) applications due to quick turnaround times on samples and the cost-effectiveness of the platform.
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影响因子:
16.6
作者:
Lee JR;Bechstein DJ;Ooi CC;Patel A;Gaster RS;Ng E;Gonzalez LC;Wang SX
通讯作者:
Wang SX
影响因子:
7.8
作者:
Ferrari D;Clementi N;Criscuolo E;Ambrosi A;Corea F;Di Resta C;Tomaiuolo R;Mancini N;Locatelli M;Plebani M;Banfi G
通讯作者:
Banfi G
影响因子:
9.4
作者:
Addetia A;Crawford KHD;Dingens A;Zhu H;Roychoudhury P;Huang ML;Jerome KR;Bloom JD;Greninger AL
通讯作者:
Greninger AL
DOI:
10.1056/nejmoa2109072
发表时间:
2021-10-14
期刊:
The New England journal of medicine
影响因子:
--
作者:
Bergwerk M;Gonen T;Lustig Y;Amit S;Lipsitch M;Cohen C;Mandelboim M;Levin EG;Rubin C;Indenbaum V;Tal I;Zavitan M;Zuckerman N;Bar-Chaim A;Kreiss Y;Regev-Yochay G
通讯作者:
Regev-Yochay G
DOI:
10.1016/j.nano.2018.11.007
发表时间:
2019-02-01
影响因子:
5.4
作者:
Ng, Elaine;Yao, Chengyang;Wang, Shan X.
通讯作者:
Wang, Shan X.