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RESEARCH PRODUCT
Correlational selection on pro- and anti-inflammatory effectors.
Romain GuerreiroGérard LizardKévin RagotJérôme BellengerBruno FaivreGabriele SorciAnne A. Bessonsubject
0106 biological sciencesLipopolysaccharidesMale[ SDV.IMM.IA ] Life Sciences [q-bio]/Immunology/Adaptive immunology01 natural sciencesMiceImmunopathologyDarwinian medicine[ SDV.EE.IEO ] Life Sciences [q-bio]/Ecology environment/SymbiosisimmunopathologyGenetics0303 health sciencesEffectorFlow CytometryInterleukin-10Interleukin 10[SDV.IMM.IA]Life Sciences [q-bio]/Immunology/Adaptive immunologyIL-10CytokinesRegression AnalysisFemalemedicine.symptomGeneral Agricultural and Biological Sciences[ SDV.MP.PAR ] Life Sciences [q-bio]/Microbiology and Parasitology/Parasitologymedicine.drug_classInflammationBiology010603 evolutionary biologysurvivalAnti-inflammatory03 medical and health sciencesImmune systemImmunityGeneticsmedicineEscherichia coliAnimals[SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/ParasitologySelection GeneticEcology Evolution Behavior and SystematicsSelection (genetic algorithm)030304 developmental biologyIL-6[ SDE.BE ] Environmental Sciences/Biodiversity and Ecologyevolutionary immunologyInterleukin-6inflammationImmunology[SDE.BE]Environmental Sciences/Biodiversity and Ecology[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosisdescription
9 pages; International audience; Parasites impose a permanent threat for hosts. As a consequence, immune defenses are important for host fitness. However, the immune response can also produce self-damage and impair host fitness if not properly regulated. Effectors that up- and downregulate the immune response should, therefore, evolve in concert, and be under the action of correlational selection. To address this issue, we assessed the shape of the selection operating on pro- and anti-inflammatory effectors following an inflammatory challenge in laboratory mice. We found that selection acts on the combination of these two traits as individuals that produced large amount of pro-inflammatory cytokines could achieve relatively high fitness (survival) only if also producing a large amount of anti-inflammatory effectors. To our knowledge, this is the first study providing evidence for correlational selection on immunity.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-06-01 | Evolution; international journal of organic evolution |