Journal: Journal of Inflammation Research
Article Title: Overexpression of Plakophilin2 Mitigates Capillary Leak Syndrome in Severe Acute Pancreatitis by Activating the p38/MAPK Signaling Pathway
doi: 10.2147/JIR.S459449
Figure Lengend Snippet: Targeting PKP2 using GW9662 leads to the downregulation of the P38/MAPK signaling pathway. ( A ) Western blot analysis revealed that GW9662 markedly reduced the production of the PKP2 protein in HUVECs stimulated with LPS (data represent the results of three independent experiments). ( B ) GW9662 significantly reduced the mRNA expression of connexin43 and AQP3 in HUVECs overexpressing PKP2 upon LPS stimulation (data represent the results of three independent experiments). ( C ) In the presence of LPS, GW9662 substantially reduced the protein levels of ZO-1, p-p38/p38, and claudin1 in HUVECs overexpressing PKP2 and simultaneously enhanced cell permeability (data represent the results of three independent experiments). ( D ) After LPS stimulation, GW9662 induced cytoskeletal disruption in HUVECs overexpressing PKP2 (data represent the results of three independent experiments). ( E ) GW9662 increased the permeability of HUVECs overexpressing PKP2 upon LPS stimulation (data represent the results of three independent experiments). ( F ) GW9662 decreased the immunofluorescence intensity of claudin1 in HUVECs overexpressing PKP2 following LPS stimulation (data represent the results of three independent experiments). GW9662: antagonist of PPARγ. *p < 0.05, **p < 0.01, ***p < 0.001, ****p <0.0001.
Article Snippet: 24 hours after transfection of PKP2 plasmid, HUVECs were treated with PPARγ agonist Rosiglitazone (10uM, HY-17386, MCE) and PPARγ antagonist GW9662 (10uM, HY-16578, MCE) 2 hours prior.
Techniques: Western Blot, Expressing, Permeability, Disruption, Immunofluorescence