Integrative systems biology reveals NKG2A-biased immune responses correlate with protection in infectious disease, autoimmune disease, and cancer
CELL REPORTS(2024)
Abstract
Infection, autoimmunity, and cancer are principal human health challenges of the 21 st century. Often regarded as distinct ends of the immunological spectrum, recent studies hint at potential overlap between these diseases. For example, inflammation can be pathogenic in infection and autoimmunity. T resident memory (T RM ) cells can be beneficial in infection and cancer. However, these findings are limited by size and scope; exact immunological factors shared across diseases remain elusive. Here, we integrate largescale deeply clinically and biologically phenotyped human cohorts of 526 patients with infection, 162 with lupus, and 11,180 with cancer. We identify an NKG2A + immune bias as associative with protection against disease severity, mortality, and autoimmune/post-acute chronic disease. We reveal that NKG2A + CD8 + T cells correlate with reduced inflammation and increased humoral immunity and that they resemble T RM cells. Our results suggest NKG2A + biases as a cross -disease factor of protection, supporting suggestions of immunological overlap between infection, autoimmunity, and cancer.
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Key words
NKG2A,infectious disease,autoimmune disease,cancer,multi-disease,systems immunology,CD8+ T cells,single-cell multi-omics,plasma proteomics
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