Abstract

Males and females differ in their immunological responses to foreign and self-antigens and show distinctions in innate and adaptive immune responses. Certain immunological sex differences are present throughout life, whereas others are only apparent after puberty and before reproductive senescence, suggesting that both genes and hormones are involved. Furthermore, early environmental exposures influence the microbiome and have sex-dependent effects on immune function. Importantly, these sex-based immunological differences contribute to variations in the incidence of autoimmune diseases and malignancies, susceptibility to infectious diseases and responses to vaccines in males and females. Here, we discuss these differences and emphasize that sex is a biological variable that should be considered in immunological studies.

Keywords

Immune systemImmunologyBiologyMicrobiomeInnate immune systemSex characteristicsAntigenGenetics

MeSH Terms

Adaptive ImmunityAge FactorsAnimalsDisease SusceptibilityEnvironmentFemaleGene-Environment InteractionGenetic VariationHormonesHumansImmunityImmunityInnateMaleReproductionSex Factors

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Publication Info

Year
2016
Type
review
Volume
16
Issue
10
Pages
626-638
Citations
5697
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Closed

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Cite This

Sabra L. Klein, Katie L. Flanagan (2016). Sex differences in immune responses. Nature reviews. Immunology , 16 (10) , 626-638. https://doi.org/10.1038/nri.2016.90

Identifiers

DOI
10.1038/nri.2016.90
PMID
27546235

Data Quality

Data completeness: 81%