期刊论文详细信息
Journal of Clinical Medicine | |
Effect of Age on Innate and Adaptive Immunity in Hospitalized COVID-19 Patients | |
Mads Kjolby1  Jesper Damsgaard Gunst2  Kristoffer Grønhøj2  Ole S. Søgaard2  Marie Høst Pahus2  Hien Ngo2  Ida Monrad2  Martin Tolstrup2  Rikke Olesen2  Lamin B. Cham2  | |
[1]Department of Clinical Medicine, Aarhus University, 8200 Aarhus, Denmark | |
[2]Department of Infectious Diseases, Aarhus University Hospital, 8200 Aarhus, Denmark | |
关键词: SARS-CoV-2; COVID-19; age; monocytes; DCs; NK cells; | |
DOI : 10.3390/jcm10204798 | |
来源: DOAJ |
【 摘 要 】
An effective but balanced cellular and inflammatory immune response may limit the severity of coronavirus disease (COVID-19), whereas uncontrolled inflammation leads to disease progression. Older age is associated with higher risk of COVID-19 and a worse outcome, but the underlying immunological mechanisms for this age-related difference are not clear. We investigated the impact of age on viral replication, inflammation, and innate and adaptive cellular immune responses in 205 hospitalized COVID-19 patients. During the early symptomatic phase of COVID-19, we found that patients above 65 years had significantly higher viral load, higher levels of proinflammatory markers, and inadequate mobilization and activation of monocytes, dendritic cells, natural killer cells, and CD8 T cells compared to those below 65 years. Our study points toward age-related deficiencies in the innate immune cellular response to SARS-CoV-2 as a potential cause of poorly controlled viral replication and inflammation during the early symptom phase and subsequent disease progression.【 授权许可】
Unknown