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Okadaic acid increases fibronectin synthesis in MC353‐E1 cells
Author(s) -
Choi JeYong,
Ryoo HyunMo,
Lee ByungHeon,
Kim InSan,
Park RangWoon,
Sohn KunYoung
Publication year - 1996
Publication title -
iubmb life
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.132
H-Index - 113
eISSN - 1521-6551
pISSN - 1521-6543
DOI - 10.1080/15216549600201012
Subject(s) - okadaic acid , fibronectin , phosphatase , immunoprecipitation , threonine , messenger rna , serine , microbiology and biotechnology , northern blot , phosphorylation , chemistry , biochemistry , biology , gene , cell
Okadaic acid, a potent specific inhibitor of serine/threonine protein phosphatases type 1 and 2A, affects several gene expressions in various cells. To determine whether okadaic acid affects the expression of fibronectin in MC3T3‐E1 cells, we measured mRNA level and synthesis of fibronectin by Northern blot hybridization and immunoprecipitation methods, respectively. Okadaic acid (10‐50 ng/ml) increased both mRNA level and synthesis of fibronectin in a dose‐dependent manner. The increase of fibronectin mRNA by okadaic acid was strongly attenuated by the inhibition of new protein synthesis. The results indicate that okadaic acid, inhibitor of protein phosphatases, increases fibronectin synthesis in MC3T3‐E1 cells.