Chen, Xiangwa;Deng, Tao;Huo, Tingting;Dong, Faqin;Deng, Jianjun published 《MiR-140-5p/TLR4 /NF-kappa B signaling pathway: Crucial role in inflammatory response in 16HBE cells induced by dust fall PM2.5》. The research results were published in《Ecotoxicology and Environmental Safety》 in 2021.Quality Control of (R)-Ethyl 6-(N-(2-chloro-4-fluorophenyl)sulfamoyl)cyclohex-1-enecarboxylate The article conveys some information:
Fine atm. particles with a diameter of 2.5μm or less (PM2.5) have a large sp. surface area, and carry a variety of organic matter, heavy metals, minerals and bacteria. They are an important risk factor in human non-communicable disease. To explore the mol. regulatory mechanism of the airway inflammation caused by PM2.5, an in vitro human bronchial epithelial (16HBE) cells poisoning model was deployed. Results showed that PM2.5 had a strong inhibitory effect on cells viability, and induced cells to secrete high levels of IL-6 and CXCL 8. These two biomarkers of inflammation were significantly reduced in the presence of TAK 242. TLR4, MyD88, IKK, and p-p65 proteins were highly expressed on exposure to PM2.5. Pretreatment with TAK 242 interfered with the activation of the TLR4 signaling pathway. By detecting the presence of lipopolysaccharides (LPS) in PM2.5 which had been autoclaved, it was speculated that the activation of the TLR4/NF-κB signaling pathway may be mediated by LPS. It was demonstrated using gain- and loss- function experiments that miR-140-5p neg. regulated TLR4 to mediate inflammation in 16HBE cells. The dual-luciferase reporter assay confirmed that miR-140-5p directly binds to the 3′ untranslated region (3′ UTR) of TLR4 to initiate biol. activity. In conclusion, this study revealed a new mechanism by which the miR-140-5p/TLR4 signaling pathway mediated the inflammatory response of 16HBE cells induced by PM2.5. Differential expression of miRNA, and the activation of the TLR4/NF-kappa B signaling pathway induced by PM2.5 implicates PM2.5 in the pathogenesis of airway inflammation.(R)-Ethyl 6-(N-(2-chloro-4-fluorophenyl)sulfamoyl)cyclohex-1-enecarboxylate (cas: 243984-11-4) were involved in the experimental procedure.
(R)-Ethyl 6-(N-(2-chloro-4-fluorophenyl)sulfamoyl)cyclohex-1-enecarboxylate(cas:243984-11-4) can reduces lesion volume in a mouse model of cerebral cavernous malformations (CCMs).Quality Control of (R)-Ethyl 6-(N-(2-chloro-4-fluorophenyl)sulfamoyl)cyclohex-1-enecarboxylate Also attenuates increased cytokine levels in a mouse sepsis model, when given in combination with ceftazidime. Cell permeable.
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