Peroxisome Proliferator-activated Receptor-β/δ Modulates Mast Cell Phenotype
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The peroxisome proliferator-activated receptor-β/δ (PPARβ/δ) is known to have multiple anti-inflammatory effects, typically observed in endothelial cells, macrophages, T cells and B cells. Despite the fact that mast cells are important mediators of inflammation, to date, the role of PPARβ/δ in mast cells has not been examined. Hence, the present study examined the hypothesis that PPARβ/δ modulates mast cell phenotype. Bone-marrow-derived mast cells (BMMCs) and peritoneal mast cells from Pparβ/δ mice expressed higher levels of high-affinity IgE receptor (FcεRI) compared with Pparβ/δ mice. BMMCs from Pparβ/δ mice also exhibited dense granules, associated with higher expression of enzymes and proteases compared with Pparβ/δ mice. Resting BMMCs from Pparβ/δ mice secreted lower levels of inflammatory cytokines, associated with the altered activation of phospholipase Cγ1 and extracellular signal-regulated kinases compared with Pparβ/δ mice. Moreover, the production of cytokines by mast cells induced by various stimuli was highly dependent on PPARβ/δ expression. This study demonstrates that PPARβ/δ is an important regulator of mast cell phenotype.
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Burgermeister E Int J Mol Sci. 2023; 24(19).
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Peroxisome Proliferator-Activated Receptors and the Hallmarks of Cancer.
Wagner N, Wagner K Cells. 2022; 11(15).
PMID: 35954274 PMC: 9368267. DOI: 10.3390/cells11152432.
The role of peroxisome proliferator-activated receptors (PPAR) in immune responses.
Christofides A, Konstantinidou E, Jani C, Boussiotis V Metabolism. 2020; 114:154338.
PMID: 32791172 PMC: 7736084. DOI: 10.1016/j.metabol.2020.154338.
Sun D, Qi Y, Yang T, Lin Y, Li S, Li Y Ann Transl Med. 2020; 8(5):179.
PMID: 32309326 PMC: 7154392. DOI: 10.21037/atm.2020.01.95.