Longitudinal COVID-19 immune trajectories in patients with neurological autoimmunity on anti-CD20 therapy

被引:1
作者
Bazzi, Sam A. [1 ]
Maguire, Cole [1 ]
Holay, Nisha [2 ]
Geltman, Janelle [1 ]
Hurley, Kerin [1 ]
DiPasquale, Chris [3 ]
Abigania, Melissa [3 ]
Olson, Eric [3 ]
Ehrlich, Lauren I. R. [2 ,4 ]
Triplett, Todd A. [2 ]
Melamed, Esther [1 ]
机构
[1] Univ Texas Austin, Sch Med, Dept Neurol, Austin, TX 78712 USA
[2] Univ Texas Austin, Dept Oncol, Dell Med Sch, Austin, TX USA
[3] Babson Diagnost, Austin, TX USA
[4] Univ Texas Austin, Dept Mol Biosci, Austin, TX USA
关键词
COVID-19 CD20 B cell depletion therapy; Multiple Sclerosis Autoimmune;
D O I
10.1016/j.msard.2022.104195
中图分类号
R74 [神经病学与精神病学];
学科分类号
摘要
Background and objectives: During the COVID-19 pandemic, B cell depleting therapies pose a clinical concern for patients with neuroimmune conditions, as patients may not mount a sufficient immune response to SARS-CoV-2 infection and vaccinations. Studies to-date have reported conflicting results on the degree of antibody production post-SARS-CoV-2 infection and vaccinations in B cell depleted patients, focusing primarily on short-term immune profiling. Our objective was to follow longitudinal immune responses in COVID-19 B cell depleted patients with neuroimmune disorders post-COVID-19 and SARS-CoV-2-vaccination.Methods: CD20 B cell depleted autoimmune patients and age/sex-matched controls positive for SARS-CoV-2 were recruited at Dell Medical School, UT Austin between 2020 and 2021, followed prospectively for 12 months and evaluated at multiple time points for spike S1 receptor binding domain (RBD) antibody titers, B and T cell composition, and frequency of T cells specific for SARS-CoV-2 antigens. Results: Immune responses post-SARS-CoV-2 infection and vaccination were evaluated in a cohort of COVID-19 B cell depleted neuroimmune patients (n = 5), COVID-19 non-B cell depleted autoimmune patients (n = 15), COVID-19 immunocompetent patients (n = 117), and healthy controls (n = 6) for a total of 259 samples in 137 participants. 4/5 B cell-depleted patients developed detectable anti-spike RBD antibodies, which were boosted by vaccination in 2 patients. While spike RBD antibodies were associated with presence of CD20+ B cells, very few B cells were required. In contrast, patients whose B cell compartment primarily consisted of CD19+CD20- Bcells during acute COVID-19 disease or vaccination did not seroconvert. Interestingly, circulating Bcells in B cell depleted patients were significantly CD38high with co-expression of CD24 and CD27, indicating that B cell depletion may impact B cell activation patterns. Additionally, all B cell depleted patients mounted a sustained T cell response to SARS-CoV-2 antigens, regardless of seroconversion. Specifically, all patients developed naive, central memory, effector memory, and effector memory RA+ T cells, suggesting intact T cell memory conversion in B cell depleted patients compared to controls. Discussion: We present the longest COVID-19 immune profiling analysis to date in B cell depleted patients, demonstrating that both humoral and cellular immune responses can be generated and sustained up to 12 months post SARS-CoV-2 infection and vaccination. Notably, failure to establish humoral immunity did not result in severe disease. We also highlight specific T and B cell signatures that could be used as clinical biomarkers to advise patients on timing of SARS-CoV-2 vaccinations.
引用
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页数:11
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