Title : Participation of mitogen-activated protein kinase in thapsigargin- and TPA-induced histamine production in murine macrophage RAW 264.7 cells.

Pub. Date : 2000 Feb

PMID : 10711350






4 Functional Relationships(s)
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1 Both thapsigargin (30 nM) and TPA (30 nM) induced phosphorylation of p44/p42 MAP kinase and p38 MAP kinase. Tetradecanoylphorbol Acetate mitogen-activated protein kinase 3 Mus musculus
2 PD98059, a specific inhibitor of MEK-1 which phosphorylates p44/p42 MAP kinase, strongly suppressed both the thapsigargin (30 nM)- and TPA (30 nM)-induced histamine production, whereas SB203580, a specific inhibitor of p38 MAP kinase, inhibited them only partially. Tetradecanoylphorbol Acetate mitogen-activated protein kinase 3 Mus musculus
3 These findings indicate that thapsigargin and TPA induce histamine production in RAW 264.7 cells by increasing the level of HDC mRNA, and that both the thapsigargin- and TPA-induced histamine production are regulated largely by p44/p42 MAP kinase and partially by p38 MAP kinase. Tetradecanoylphorbol Acetate mitogen-activated protein kinase 3 Mus musculus
4 These findings indicate that thapsigargin and TPA induce histamine production in RAW 264.7 cells by increasing the level of HDC mRNA, and that both the thapsigargin- and TPA-induced histamine production are regulated largely by p44/p42 MAP kinase and partially by p38 MAP kinase. Tetradecanoylphorbol Acetate mitogen-activated protein kinase 3 Mus musculus