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- W2890883571 abstract "Abstract Type 1 diabetes is associated with systemic low grade inflammation (LGI). We have previously shown that LGI in diabetic mice depends on systemic circulation of leukotriene (LTB 4 ) which potentiates the toll-like/ IL1β receptors response in macrophages. Impaired wound healing is an important co-morbidity in diabetes, and macrophages play a key role in this process. Here, we investigated the role of leukotrienes on monocytes and macrophages phenotype and in the impaired wound healing in diabetic mice. Type 1 diabetes was induced with streptozotocin in 129SvE wild-type (WT) and leukotrienes-deficient 5LO −/− (5-lipoxygenase knockout ) mice. In diabetics, the systemic levels of LTB4, TNF-α, IL-6, IL-10, IL-12 and IFNγ were increased as well as the frequency of pro-inflammatory monocytes (CD11b + Ly6C high Ly6G − ) compared to healthy mice. In diabetic 5LO −/− mice, these parameters were similar to those in healthy mice. Resident peritoneal macrophages from diabetic WT mice showed a classically activated M1-like phenotype (high Nos2 , Stat and Il12 expression, and nitrite levels). Macrophages from diabetic 5LO −/− mice presented alternatively activated M2-macrophages markers (high Arg1 and Chi3l3 expression and arginase activity) and when stimulated with IL4, enhanced phosphorylated-STAT6. Cutaneous wound healing in diabetic WT mice was impaired, which correlated with the decreased frequency of M2-macrophages (CD45 + F4/80 + CD206 + ) in the lesions. In diabetic 5LO −/− mice, the frequency of M2-macrophages in the wound was similar to that in healthy mice, suggesting that the impaired healing of diabetic mice depends on 5LO products. The inhibition of leukotrienes or antagonism of its receptors could be a therapeutic alternative for diabetic patients with impaired healing." @default.
- W2890883571 created "2018-09-27" @default.
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- W2890883571 date "2018-09-21" @default.
- W2890883571 modified "2023-10-01" @default.
- W2890883571 title "Impaired wound healing in type 1 diabetes is dependent on 5-lipoxygenase products" @default.
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- W2890883571 doi "https://doi.org/10.1038/s41598-018-32589-7" @default.
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