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MOUSE peritoneal macrophages treated with C498 or LPS

ABSTRACT: Mouse peritoneal macrophages were isolated and treated with vehicle or C498 (15 μM) for 0.5 h, followed by LPS (100 ng/ml) challenge for an additional 4 h.

ORGANISM(S): Mus musculus

PROVIDER: GSE220654 | GEO | 2023/05/03

REPOSITORIES: GEO

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Next Generation Sequencing Facilitates Quantitative Analysis of Wild Type and α7nAChR-/- Peritoneal macrophage Transcriptomes with Nicotine and/or LPS treatment

Project description:Purpose: The cholinergic anti-inflammatory pathway (CAP) links the nervous and immune systems and modulates innate and adaptive immunity. The goals of this study are to identify the new downstream signaling of α7nAChR in macrophages. Methods: Peritoneal macrophages isolated from α7nAChR+/+ and α7nAChR-/- mice were treated with nicotine (10 μM) and/or LPS (100 ng/ml), then RNA-seq was performed. Results: Genes were selected that had more than 4-fold relative gene expression in nicotine-treated cells compared to the control group (vehicle-treated). The same calculation was applied to nicotine+LPS-treated cells and LPS-treated cells and 264 genes were identified as genes commonly induced by nicotine based on these two comparisons. Then relative gene expression was compared between α7nAChR+/+- and α7nAChR-/- -derived cells. 18 genes were finally selected whose expressions are suppressed (<1/2) in α7nAChR-/- -derived peritoneal macrophages. Conclusions: Our study represents the first detailed analysis focused on the new downstream signaling of α7nAChR in macrophages, generated by RNA-seq technology. We newly revealed the important anti-inflammatory role of Hes1 in the CAP using some functional experiments.

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