Abstract
The induction of cellular senescence by activated oncogenes acts as a barrier to cell transformation. Now, identify a key component of a senescence pathway that prevents tumorigenesis in a mouse model of skin cancer. They show that the p38-regulated/activated protein kinase (PRAK) induces senescence downstream of oncogenic Ras by directly phosphorylating and activating the tumor-suppressor protein p53.
MeSH terms
-
Animals
-
Cell Proliferation
-
Cell Transformation, Neoplastic / genetics*
-
Cell Transformation, Neoplastic / metabolism
-
Cellular Senescence / genetics*
-
DNA Damage / genetics
-
Humans
-
Intracellular Signaling Peptides and Proteins
-
Mice
-
Oncogenes / genetics*
-
Phosphorylation
-
Protein Serine-Threonine Kinases / genetics
-
Protein Serine-Threonine Kinases / metabolism*
-
Signal Transduction / genetics
-
Tumor Suppressor Protein p53 / genetics
-
Tumor Suppressor Protein p53 / metabolism*
Substances
-
Intracellular Signaling Peptides and Proteins
-
Tumor Suppressor Protein p53
-
MAP-kinase-activated kinase 5
-
Protein Serine-Threonine Kinases