Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a lethal form of cancer with few therapeutic options. We found that levels of the lysine methyltransferase SMYD2 (SET and MYND domain 2) are elevated in PDAC and that genetic and pharmacological inhibition of SMYD2 restricts PDAC growth. We further identified the stress response kinase MAPKAPK3 (MK3) as a new physiologic substrate of SMYD2 in PDAC cells. Inhibition of MAPKAPK3 impedes PDAC growth, identifying a potential new kinase target in PDAC. Finally, we show that inhibition of SMYD2 cooperates with standard chemotherapy to treat PDAC cells and tumors. These findings uncover a pivotal role for SMYD2 in promoting pancreatic cancer.
Keywords:
MAPKAPK3; Ras; SMYD2; lung adenocarcinoma; lysine methylation; pancreatic cancer.
© 2016 Reynoird et al.; Published by Cold Spring Harbor Laboratory Press.
Publication types
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Research Support, N.I.H., Extramural
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Research Support, Non-U.S. Gov't
MeSH terms
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Animals
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Carcinoma, Pancreatic Ductal / enzymology*
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Cell Proliferation / drug effects
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Cell Proliferation / genetics
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Disease Models, Animal
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Enzyme Activation / drug effects
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Enzyme Activation / genetics
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Enzyme Inhibitors / pharmacology
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HEK293 Cells
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Histone-Lysine N-Methyltransferase / antagonists & inhibitors
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Histone-Lysine N-Methyltransferase / genetics
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Histone-Lysine N-Methyltransferase / metabolism*
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Humans
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Intracellular Signaling Peptides and Proteins / metabolism
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Mice
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Mice, Inbred C57BL
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Pancreatic Neoplasms / enzymology*
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Protein Serine-Threonine Kinases / metabolism
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Signal Transduction
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Stress, Physiological
Substances
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Enzyme Inhibitors
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Intracellular Signaling Peptides and Proteins
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Histone-Lysine N-Methyltransferase
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Smyd2 protein, mouse
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MAP-kinase-activated kinase 3
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Protein Serine-Threonine Kinases