Neuro-COVID long-haulers exhibit broad dysfunction in T cell memory generation and responses to vaccination

Author:

Visvabharathy LavanyaORCID,Hanson Barbara,Orban Zachary,Lim Patrick H.,Palacio Nicole M.,Jain Rishi,Clark Jeffrey R.,Graham Edith L.,Liotta Eric Michael,Penaloza-MacMaster Pablo,Koralnik Igor J.

Abstract

SummaryThe high prevalence of post-acute sequelae of SARS-CoV-2 infection (PASC) is a significant health concern. In particular, virus-specific immunity in patients who suffer from chronic neurologic symptoms after acute SARS-CoV-2 infection remain poorly understood. Here, we report that Neuro-PASC patients have a specific immunological signature composed of humoral and cellular responses that are biased towards different SARS-CoV-2 structural proteins compared to healthy COVID convalescents, including a significant elevation in Nucleocapsid-specific antibody and T cell responses. Interestingly, the severity of cognitive deficits or quality of life markers in Neuro-PASC patients are associated with reduced effector molecule expression in memory T cells. Furthermore, we demonstrate a sustained elevation in T cell responses to SARS-CoV-2 mRNA vaccines in Neuro-PASC patients compared with healthy COVID convalescents. These data provide a framework for the rational design of predictive biomarkers and therapeutics for long COVID syndrome.

Publisher

Cold Spring Harbor Laboratory

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