fionnuala morrish, ph.d. clinical division fred hutchinson cancer research center
DESCRIPTION
Oncogene integration of “omic” networks to increase mitochondrial function, cell cycle entry and tumor progression. Fionnuala Morrish, Ph.D. Clinical Division Fred Hutchinson Cancer Research Center. Outline of talk. Interconnection of –omic networks The oncogene c-Myc - PowerPoint PPT PresentationTRANSCRIPT
Oncogene integration of Oncogene integration of “omic” networks to increase “omic” networks to increase mitochondrial function, cell mitochondrial function, cell
cycle entry and tumor cycle entry and tumor progression.progression.
Fionnuala Morrish, Ph.D.Fionnuala Morrish, Ph.D.Clinical DivisionClinical Division
Fred Hutchinson Cancer Research Fred Hutchinson Cancer Research CenterCenter
Outline of talkOutline of talk
Interconnection of –omic networksInterconnection of –omic networks The oncogene c-MycThe oncogene c-Myc Regulation of mitochondrial function Regulation of mitochondrial function
and cell metabolism during cell cycle and cell metabolism during cell cycle entryentry
Regulation of substrate supply for Regulation of substrate supply for protein acetylationprotein acetylation
Regulation of metabolism during Regulation of metabolism during tumor progression and regressiontumor progression and regression
Interconnected –omic Interconnected –omic networksnetworks
Transcriptome Metabolome
Proteome
Metabolite modified Proteome
PalmitoylationAcetylationO-GlcNAcylationFarnsylation
The oncogene c-MycThe oncogene c-Myc
Transcription factor regulating 15% Transcription factor regulating 15% of genomeof genome
Chromatin remodellingChromatin remodelling Embryonic stem cell re-programmingEmbryonic stem cell re-programming Cell cycle regulatorCell cycle regulator Pervasive oncogenePervasive oncogene Endogenous Myc required for tumor Endogenous Myc required for tumor
maintenance maintenance
Myc regulation of mitochondrial Myc regulation of mitochondrial function and cell metabolism function and cell metabolism
during serum induced cell cycle during serum induced cell cycle entryentry
c-myc +/+ c-myc-/-
0hr 16hr 0hr 16hr
Landay et al 2000
Mitochondrial genes targets Mitochondrial genes targets induced by Myc on cell cycle induced by Myc on cell cycle
entryentry
Morrish et al. Genes and Development 2003
Network of genes regulated by Network of genes regulated by MycMyc
Myc bioenergetic phenotypeMyc bioenergetic phenotype
Myc+/+
Myc-/-MycER
Myc-/-
Myc-/-E1A
Oxygen consumptionand extracellular acidification rate
Bioenergetic cell cycle Bioenergetic cell cycle checkpointscheckpoints
Experimental design for Experimental design for analysis of metabolism during analysis of metabolism during
cell cycle entrycell cycle entry
Myc-/- Myc+/+ Myc-/-MycER
Quiescent
Cell cycle analysis
ATPPyruvate
Lactate
GlucoseOxygen
Plate in 10% serum
Mitochondrial massAnd potential
3 hr8 hrs16 hrs
3 hr8 hrs16 hrs
Temporal regulation of cellular bioenergetics
Morrish et al. Cell Cycle 2008
3 hr 8 hr 16 hr
Cell cycle entryQuiescent
Serum addition
Mitochondrial function is Mitochondrial function is required during Myc induced required during Myc induced
cell cycle entrycell cycle entry
2-DG
Oligomycin
Rotenone
Myc regulates metabolic cell Myc regulates metabolic cell cycle checkpoints in response cycle checkpoints in response
to serumto serum Mitochondrial biogenesis and functionMitochondrial biogenesis and function
Increased membrane potentialIncreased membrane potential Increased mitochondrial massIncreased mitochondrial mass Increased oxygen consumptionIncreased oxygen consumption Increased ATPIncreased ATP
GlycolysisGlycolysis Increased lactate productionIncreased lactate production Increased glucose uptakeIncreased glucose uptake
Myc regulation of Myc regulation of substrate supply for substrate supply for protein acetylationprotein acetylation
Myc regulation of gene transcription in Myc regulation of gene transcription in interconnected metabolic networksinterconnected metabolic networks
Morrish et al. Cell Cycle 2008
Myc regulated flux increases Myc regulated flux increases acetyl CoA production from acetyl CoA production from
mitochondria mitochondria
Myc regulation of histone Myc regulation of histone acetylationacetylation
TCA cycle
[U-13C] Glucose
[U-13C]-Pyruvate 13C-FA, 13C-acetate and 13C-acetoacetate
13C-Ac13C-Ac
GCN5
[U-13C]-Acetyl-CoA
[U-13C]-Citrate
Nuclear histones