Objective: To investigate whether probenecid (PROB) could improve the proliferation and migration ability of rats' pulmonary artery smooth muscle cells induced by platelet-derived growth factor-BB (PDGF-BB).
Methods: Primary pulmonary artery smooth muscle cells (PASMCs) of SD rats were cultured , and were randomly divided into control group (CON group), PDGF-BB group (10 ng/ml PDGF-BB treatment for 24 h) and PDGF-BB+PROB group (10 ng/ml PDGF-BB and 200 μmol/L PROB treatment for 24 h, PROB is a specific blocker of pannexin-1). CCK-8 method was used to select the suitable intervention concentrations of PROB and PDGF-BB, and to detect the proliferation of PASMCs in each group. The migration ability of PASMCs was detected by Transwell assay and cell scratch test. Immunofluorescence cytochemistry and Western blot were used to detect the protein expressions and distribution of osteopontin (OPN) and proliferating cell nuclear antigen (PCNA) in PASMCs.
Results: Compared with CON group, the migration and proliferation ability of PASMCs in PDGF-BB group were enhanced (＜0.05). After treated with PROB, the migration and proliferation ability of PASMCs in PDGF-BB+PROB group were decreased significantly (＜0.05). Compared with CON group, the expression and protein levels of OPN and PCNA in PDGF-BB group were increased significantly (＜0.05), while the expression and protein levels of OPN and PCNA in PDGF-BB+PROB were decreased significantly (＜0.05).
Conclusion: Probenecid inhibits the migration and proliferation of PDGF-BB-induced PASMCs by blocking Pannexin-1.
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| http://dx.doi.org/10.12047/j.cjap.6326.2022.101 | DOI Listing |
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