Premium
Secreted protein acidic, rich in cysteine induces pulp cell migration via α v β 3 integrin and extracellular signal‐regulated kinase
Author(s) -
Pavasant P,
Yongchaitrakul T
Publication year - 2008
Publication title -
oral diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.953
H-Index - 87
eISSN - 1601-0825
pISSN - 1354-523X
DOI - 10.1111/j.1601-0825.2007.01383.x
Subject(s) - mapk/erk pathway , integrin , microbiology and biotechnology , cell migration , extracellular , protein kinase a , chemistry , kinase , chemotaxis , signal transduction , cysteine , receptor , cell , biology , biochemistry , enzyme
Aim: The aim of this study was to investigate the influence of secreted protein acidic, rich in cysteine (SPARC) on the migration of human dental pulp (HDP) cells. Methods: Secreted protein acidic, rich in cysteine was applied in the lower chamber of the chemotaxis apparatus and migration was determined by counting the cells that migrated through the membrane. To determine the signaling pathway involved, cells were incubated with inhibitors for 30 min prior to the migration assay. Results: The results indicated that SPARC induced HDP cell migration in a dose‐dependent manner via extracellular signal‐regulated kinase (ERK). The migration could be inhibited both by the anti‐ α v β 3 integrin antibody and by suramin, a non‐selective growth factor receptor and G‐protein coupled receptor antagonists. The anti‐ α v β 3 integrin antibody could also inhibit ERK activation, suggesting the possible role of α v β 3 integrin on the regulation of ERK and cell migration. Interestingly, both suramin and SB225002, another G‐protein coupled receptor antagonist, suppressed ERK activation. Conclusions: Secreted protein acidic, rich in cysteine could act as a chemotactic factor and facilitate migration, possibly through the G‐protein coupled receptor, α v β 3 integrin and ERK. The data support that SPARC could play a crucial role in dental pulp tissue repair by inducing dental pulp cell migration.