Effect of levocetirizine hydrochloride on the growth of human dermal papilla cells: a preliminary study
Abstract
BACKGROUND
To conduct an in vitro investigation into the effect of different concentrations of levocetirizine hydrochloride on the growth of human dermal papilla cells (hDPCs) the underlying mechanisms involved.
METHODS
hDPCs were cultured in Dulbecco's Modified Eagle Medium (DMEM) containing different concentrations of levocetirizine hydrochloride for 48 h. The growth of hDPCs was observed by immunofluorescence staining, and the cell proliferation was detected by MTT assay. After the hDPCs were cultured in DMEM containing 1, 10, 100, 1,000, and 10,000 ng/mL levocetirizine hydrochloride for 48 h, the mRNA expressions of cyclooxygenase 2 (COX-2), prostaglandin D2 synthase (PTGDS), prostaglandin E2 (PGE2), prostaglandin F2α (PGF2α), G protein-coupled receptor 44 (GPR44), protein kinase B (AKT), and glycogen synthase kinase 3β (GSK3β) were determined by real-time fluorescence-based quantitative polymerase chain reaction (PCR), and the protein expressions of PTGDS, phosphorylated protein kinase B (pAKT), and phosphorylated glycogen synthase kinase 3β (pGSK3β) were detected by Western blotting. After the hDPCs were cultured in DMEM containing 1, 10, 100, 1,000, 10,000 ng/mL levocetirizine hydrochloride for 24 h, the secretion levels of prostaglandin D2 (PGD2) and PGD2 receptor (PGD2R) in the culture supernatant were determined by enzyme-linked immunosorbent assay (ELISA). One-way analysis of variance (ANOVA) was performed using SPSS 17.0 software, and the LSD-t test was used for…
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