Example sentences for: mitogen-activated

How can you use “mitogen-activated” in a sentence? Here are some example sentences to help you improve your vocabulary:

  • mitogen-activated protein kinase MAPK

  • The mitogen-activated protein kinase family is associated with many cellular functions.

  • Insulin transduces its cellular signal in most cell types via two signaling pathways, i.e., the p44/42 mitogen-activated protein kinase (MAPK) pathway and the phosphatidylinositol 3-kinase (PI 3-kinase) pathway [ 8 ] . Insulin initially binds to the insulin receptor causing autophosphorylation of the β-subunit of the receptor [ 8 ] . The protein kinase domain of the β-subunit then phosphorylates tyrosine residues in insulin receptor substrate (IRS)-1, IRS-2, IRS-3, or Shc, which then activates the p44/42 MAPK signaling cascade [ 8 ] . PD98059 is a cell permeable, non-competitive, reversible inhibitor of MAPK/extracellular signal-regulated kinase kinase (MEK), a protein kinase upstream of p44/42 MAPK [ 9 ] . Tyrosine phosphorylated IRS also activates the PI 3-kinase pathway [ 8 10 ] . There are at least three, well-characterized inhibitors of the PI 3-kinase pathway, i.e., wortmannin, LY294002, and rapamycin [ 11 12 13 ] . Wortmannin and LY294002 block the activation of PI 3-kinase itself [ 11 12 ] , while rapamycin prevents the phosphorylation of a downstream effector in the pathway, p70 S6 kinase [ 13 ] .

  • However, the signal transduction pathway, MAPK, has been shown to control and be upstream of DNA-replication, transcription, and cell cycle pathways [ 52 53 54 ] . The mitogen-activated protein kinase (MAPK) pathway, consisting of the MAP kinase kinases (MKKs) 1 and 2, and extracellular signal-regulated kinases (ERKs) 1 and 2, which have been implicated in diverse cellular processes including proliferation, transformation, and cell differentiation [ 53 ] . The MAP kinase (MAPK) pathway has emerged as a crucial route between membrane-bound Ras and the nucleus.

  • TGF-β family proteins, including β1,β2 and β3, induce TNF-resistance and suppress the PH-20 effect of increasing TNF cytotoxicity in murine L929 fibroblasts [ 8 11 ] . TGF-β1 induces a novel extracellular matrix protein that prevents TNF-mediated cell death and blocks the activation of extracellular signal-regulated kinase (ERK; also known as p42/44 mitogen-activated protein kinase, p42/44 MAPK) in L929 cells [ 8 12 ] . Additionally, TGF-β1 induces the expression of TIAF1 (TGF-β-induced antiapoptotic factor) [ 13 ] and TIF2 (TGF-β-induced factor 2) [ 14 ] that inhibit TNF cytotoxicity.


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