2022
DOI: 10.1136/jnnp-2022-330175
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Longitudinal characterisation of B and T-cell immune responses after the booster dose of COVID-19 mRNA-vaccine in people with multiple sclerosis using different disease-modifying therapies

Abstract: BackgroundThe decline of humoral response to COVID-19 vaccine led to authorise a booster dose. Here, we characterised the kinetics of B-cell and T-cell immune responses in patients with multiple sclerosis (PwMS) after the booster dose.MethodsWe enrolled 22 PwMS and 40 healthcare workers (HCWs) after 4–6 weeks from the booster dose (T3). Thirty HCWs and 19 PwMS were also recruited 6 months (T2) after the first dose. Antibody response was measured by anti-receptor-binding domain (RBD)-IgG detection, cell-mediate… Show more

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Cited by 17 publications
(19 citation statements)
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“…Meanwhile, the T-cell response rate remained stable throughout the study. These findings resemble the kinetics pattern previously reported by Farroni et al 41 and Aiello et al 37 in other immunosuppressed populations, including patients with multiple sclerosis and rheumatoid arthritis undergoing treatment with various disease-modifying therapies. Interestingly, in those studies, 37,41 the T-cell specific SARS-CoV-2 response was mainly driven by CD4 + T-cells, which could justify the impact of a pre-vaccination low CD4 + cell count in the impairment of cellular response found in our study.…”
Section: As Previously Described By Alimam Et Al and Mariotti Et Alsupporting
confidence: 89%
See 1 more Smart Citation
“…Meanwhile, the T-cell response rate remained stable throughout the study. These findings resemble the kinetics pattern previously reported by Farroni et al 41 and Aiello et al 37 in other immunosuppressed populations, including patients with multiple sclerosis and rheumatoid arthritis undergoing treatment with various disease-modifying therapies. Interestingly, in those studies, 37,41 the T-cell specific SARS-CoV-2 response was mainly driven by CD4 + T-cells, which could justify the impact of a pre-vaccination low CD4 + cell count in the impairment of cellular response found in our study.…”
Section: As Previously Described By Alimam Et Al and Mariotti Et Alsupporting
confidence: 89%
“…Consistently with the findings in these studies, 8,36 the main factors related to a poor humoral response after a third vaccine dose were hypogammaglobulinemia, lymphopenia, low CD19 + cell count, and above all, active treatment with anti‐CD20 monoclonal antibodies. The deleterious effect of anti‐CD20 therapy in humoral immunogenicity has also been described by Aiello et al 37 and Tortorella et al 38 in patients with multiple sclerosis treated with ocrelizumab, which also failed to achieve seroconversion after booster SARS‐CoV‐2 vaccination.…”
Section: Discussionmentioning
confidence: 59%
“…Altogether, the T‐cell response was reduced in some individuals below the cutoff level for all other DMT groups ranging from minor impact in alemtuzumab and teriflunomide to more variable responses in natalizumab‐, cladribine‐ and dimethylfumarate‐treated pwMS. Reduced T‐cell responses to peptides have been described previously for cladribine and natalizumab [21, 24], and a third vaccination led to higher proportions of Th1 and IFN‐γ‐specific CD4+ T‐cell responders in pwMS [43].…”
Section: Discussionmentioning
confidence: 86%
“…A third dose of the SARS‐CoV‐2 vaccine has been previously shown to boost antibody levels in fingolimod‐treated individuals; however, other studies show that a considerable number of pwMS still do not develop antibodies after a third vaccination [25, 41–43].…”
Section: Discussionmentioning
confidence: 99%
“…43 Robust longitudinal cellular immunity in B-cell-depleted MS patients is a consistent finding across multiple studies. 26,33,[44][45][46][47] Booster further raised cytokine responses 4-5-fold. This was a similar-fold increase as after the primary vaccine.…”
Section: Discussionmentioning
confidence: 99%