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Chih-Hsuan Hsia
Abstract
The migratory dynamics of macrophages are pivotal in orchestrating inflammation and the progression of pathological states. This study delves into the therapeutic promise of morin hydrate (MH), a bioflavonoid ubiquitously present in diverse botanical sources, aiming to assuage inflammation through the nuanced inhibition of macrophage migration. Employing the LPS-stimulated RAW264.7 cell line, the specific molecular mechanisms underpinning MH's anti-inflammatory prowess are scrutinized. The findings unveil that MH manifests concentration-dependent anti-inflammatory effects, intricately curtailing nitric oxide (NO) production and orchestrating downregulation of inducible nitric oxide synthase (iNOS) at both mRNA and protein levels. Notably, MH exerts inhibitory influences on pivotal signaling moieties involved in inflammation, encompassing extracellular signal-regulated kinase (ERK) and c-Jun N-terminal kinase (JNK). At an elevated concentration, MH further orchestrates a discernible suppression in the expression of phosphorylated p65, pSrc, and focal adhesion kinase (FAK). Additionally, MH mitigates LPS-induced β-catenin expression without substantially affecting COX-2, phosphorylated p38, and phosphorylated Akt in the LPS-challenged RAW264.7 cellular milieu. Moreover, MH pretreatment conspicuously impedes the migration of LPS-induced macrophages, spotlighting its potential to sculpt macrophage behavior amidst inflammatory cascades. These revelations unravel a sophisticated interplay between MH's anti-inflammatory attributes and its impact on the migratory dynamics of macrophages. In conclusion, this scientific exploration not only illuminates the intricate molecular tapestry governing MH-mediated anti-inflammatory effects but also bestows insightful considerations for its therapeutic applications in the realm of inflammation-associated pathologies.