Slc11a1 (Nramp-1) gene modulates immune-inflammation genes in macrophages during pristane-induced arthritis in mice

• Published in: Inflammation research Vol. 66; no. 11; pp. 969 - 980
• Main Authors: Correa, Mara A., Canhamero, Tatiane, Borrego, Andrea, Katz, Iana S. S., Jensen, José R., Guerra, José Luiz, Cabrera, Wafa H. K., Starobinas, Nancy, Fernandes, Jussara G., Ribeiro, Orlando G., Ibañez, Olga M., De Franco, Marcelo
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.11.2017; Springer Nature B.V
• Subjects: Alleles; Allergology; Animals; Arthritis; Arthritis, Experimental - genetics; Arthritis, Experimental - immunology; Arthritis, Experimental - pathology; Arthritis, Rheumatoid - genetics; Arthritis, Rheumatoid - immunology; Arthritis, Rheumatoid - pathology; Biomedical and Life Sciences; Biomedicine; Cation Transport Proteins - genetics; Cation Transport Proteins - immunology; Cell activation; Chemokines; Cytokines - blood; Cytokines - immunology; Dermatology; Female; Gene expression; Gene polymorphism; Hydrogen peroxide; Hydrogen Peroxide - immunology; Immune response; Immunology; Inflammation; Interleukin 6; Joints - pathology; Macrophages; Macrophages, Peritoneal - immunology; Male; Mice; Mineral oils; Neurology; Nitric Oxide - immunology; Nramp protein; Original Research Paper; Peritoneum; Phagocytes; Pharmacology/Toxicology; Polymorphism; Pristane; Rheumatology; Rodents; SLC11A1 gene; Terpenes; Transcriptome; Tumor necrosis factor; Arthritis; Inflammation; Cytokines; Mouse; Macrophage; Slc11a1
• ISSN: 1023-3830; 1420-908X
• DOI: 10.1007/s00011-017-1077-8

Objective and design Pristane-induced arthritis (PIA) in AIRmax mice homozygous for Slc11a1 R and S alleles was used to characterize the influence of Slc11a1 gene polymorphism on immune responses during disease manifestation. Previous reports demonstrated that the presence of the Slc11a1 S allele increased the incidence and severity of PIA in AIRmax SS , suggesting that this gene could interact with inflammatory loci to modulate PIA. We investigated the effects of Slc11a1 alleles on the activation of phagocytes during PIA. Treatment Mice were injected intraperitoneally with two doses of 0.5 mL of mineral oil pristane at 60-day intervals. Arthritis development was accompanied for 180 days. Results AIRmax SS mice showed differential peritoneal macrophage gene expression profiles during PIA, with higher expression and production of H 2 O 2 , NO, IL-1β, IL-6, TNF-α, and several chemokines. The presence of the Slc11a1 R allele, on the other hand, diminished the intensity of macrophage activation, restricting arthritis development. Conclusion Our data demonstrated the fine-tuning roles of Slc11a1 alleles modulating macrophage activation, and consequent PIA susceptibility, in those mouse lines.