Journal
TRENDS IN IMMUNOLOGY
Volume 42, Issue 3, Pages 198-208Publisher
CELL PRESS
DOI: 10.1016/j.it.2021.01.002
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Funding
- NSF [IOS-1656618, IOS-2027040, IOS-1457383, IOS-1953226]
- BSF [2017285]
- Hanse-Wissenschaftskolleg (Institute for Advanced Study), Germany
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Immunology has traditionally focused on controlling environmental variation to establish genetic causality, but individual variation actually arises from genetic, environmental, and their interactive pathways. Applying the evolutionary frameworks of phenotypic plasticity and reaction norms to immunology can enhance productivity, reproducibility, and reflect human physiology more accurately in model organism studies.
For most of its history, immunology has sought to control environmental variation to establish genetic causality. As with all biological traits though, variation among individuals arises by three broad pathways: genetic (G), environmental (E), and the interactive between the two (GxE); and immunity is no different. Here, we review the value of applying the evolutionary frameworks of phenotypic plasticity and reaction norms to immunology. Because standardized laboratory environments are vastly different from the conditions under which populations evolved, we hypothesize that immunology might presently be missing important phenotypic variation and even focusing on dysregulated molecular and cellular processes. Modest adjustments to study designs could make model organism immunology more productive, reproducible, and reflective of human physiology.
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