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- W4387563973 abstract "Langerhans cell histiocytosis (LCH) is a type of -histiocytic disorder characterized by aberrant function, differentiation or proliferation of mononuclear phagocyte system cells, however, the pathogenesis is not fully understood. Opsin 3 (OPN3) plays an important role in regulating cell function.We aimed to investigate OPN3 expression in LCH and Langerhans cells and evaluate its possible regulation of cellular function in a Langerhans cell-like cell line (ELD-1).Expression of OPN3 in LCH and paired adjacent healthy skin tissue was determined using microscopic tools (immunohistochemical and immunofluorescence staining) and RNA scope. OPN3 protein and mRNA levels in primary dendritic cells and ELD-1 were measured by real-time quantitative PCR and western blotting, respectively. The effects of reduced or over-expressed OPN3 mRNA level, via a lentiviral vector, were examined on ELD-1 proliferation, migration, cell cycle and apoptosis using the Cell Counting Kit 8, EdU-594 kit, Transwell assays and Cell Cycle Analysis Kit and Annexin V-PE apoptosis kit, respectively. Lastly, the signalling pathway mediating these functions was investigated via RNA sequencing and western blotting.OPN3 was highly expressed in human LCH tissue compared to healthy tissue, and was expressed in primary dendritic cells and ELD-1. Knockdown of OPN3 in ELD-1 inhibited cell proliferation, the cell cycle, and cell migration, while over-expression reversed these processes. These functions correlated with induction of the MAPK (p38/JNK/ERK) signalling pathway.Our results provide insight into the role of OPN3 in LCH which may become a molecular target for the clinical treatment of LCH." @default.
- W4387563973 created "2023-10-13" @default.
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- W4387563973 date "2023-08-01" @default.
- W4387563973 modified "2023-10-14" @default.
- W4387563973 title "Opsin 3 expression in human Langerhans cell histiocytosis and its mediation of ELD-1 cellular function" @default.
- W4387563973 doi "https://doi.org/10.1684/ejd.2023.4532" @default.
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