Title : Imiquimod-induced AMPK activation causes translation attenuation and apoptosis but not autophagy.

Pub. Date : 2015 May

PMID : 25766763






9 Functional Relationships(s)
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1 Imiquimod-induced AMPK activation causes translation attenuation and apoptosis but not autophagy. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
2 OBJECTIVE: To evaluate the role of AMPK in IMQ-induced apoptosis and autophagy. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
3 The role of AMPK activation in IMQ-induced autophagy and apoptosis was assessed by inhibiting AMPK, genetically silencing AMPK and over-expressing AMPK dominant-negative mutants. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
4 The role of AMPK activation in IMQ-induced autophagy and apoptosis was assessed by inhibiting AMPK, genetically silencing AMPK and over-expressing AMPK dominant-negative mutants. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
5 The role of AMPK activation in IMQ-induced autophagy and apoptosis was assessed by inhibiting AMPK, genetically silencing AMPK and over-expressing AMPK dominant-negative mutants. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
6 The role of AMPK activation in IMQ-induced autophagy and apoptosis was assessed by inhibiting AMPK, genetically silencing AMPK and over-expressing AMPK dominant-negative mutants. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
7 IMQ caused ATP depletion and induced LKB1-mediated AMPK activation. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
8 The down-regulation of AMPK activity via pharmacological inhibition and genetic silencing resulted in reduced IMQ-induced apoptosis but did not influence autophagy, and this rescue effect was associated with the retention of translation factor activity and anti-apoptotic Bcl-2 family member Mcl-1 protein expression levels. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens
9 CONCLUSION: IMQ induces AMPK activation independent of TLR7/8 expression, resulting in translation inhibition and subsequent apoptosis through ATP depletion and LKB1 signaling, in skin tumor cells. Imiquimod protein kinase AMP-activated catalytic subunit alpha 2 Homo sapiens