Social history and exposure to pathogen signals modulate social status effects on gene regulation in rhesus macaques

Joaquín Sanz, Paul L. Maurizio, Noah Snyder-Mackler, Noah D. Simons, Tawni Voyles, Jordan Kohn, Vasiliki Michopoulos, Mark Wilson, Jenny Tung, Luis B. Barreiro

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Social experience is an important predictor of disease susceptibility and survival in humans and other social mammals. Chronic social stress is thought to generate a proinflammatory state characterized by elevated antibacterial defenses and reduced investment in antiviral defense. Here we manipulated long-term social status in female rhesus macaques to show that social subordination alters the gene expression response to ex vivo bacterial and viral challenge. As predicted by current models, bacterial lipopolysaccharide polarizes the immune response such that low status corresponds to higher expression of genes in NF-κB-dependent proinflammatory pathways and lower expression of genes involved in the antiviral response and type I IFN signaling. Counter to predictions, however, low status drives more exaggerated expression of both NF-κB- and IFN-associated genes after cells are exposed to the viral mimic Gardiquimod. Status-driven gene expression patterns are linked not only to social status at the time of sampling, but also to social history (i.e., past social status), especially in unstimulated cells. However, for a subset of genes, we observed interaction effects in which females who fell in rank were more strongly affected by current social status than those who climbed the social hierarchy. Taken together, our results indicate that the effects of social status on immune cell gene expression depend on pathogen exposure, pathogen type, and social history - in support of social experience-mediated biological embedding in adulthood, even in the conventionally memoryless innate immune system.

Original languageEnglish (US)
Pages (from-to)23317-23322
Number of pages6
JournalProceedings of the National Academy of Sciences of the United States of America
Volume117
Issue number38
DOIs
StatePublished - Sep 22 2020
Externally publishedYes

Keywords

  • Biological embedding
  • Dominance rank
  • Gene expression
  • Immune response
  • Social adversity

ASJC Scopus subject areas

  • General

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