novel agents targeting the apoptosis pathway
DESCRIPTION
Novel agents targeting the apoptosis pathway. Aaron D. Schimmer MD, PhD, FRCPC Princess Margaret Hospital Toronto, Canada. Cancer is an Elephant. Cancer is a defect In apoptosis. Therapy. Biology. Apoptosis. Survival. Survival. Survival. Survival. Death. Death. Death. Death. - PowerPoint PPT PresentationTRANSCRIPT
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Novel agents targeting the apoptosis pathway
Aaron D. Schimmer MD, PhD, FRCPCPrincess Margaret HospitalToronto, Canada
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Cancer is an Elephant
Cancer is a defectIn apoptosis
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Therapy Biology
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Apoptosis
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Ask1Ask1
FADD ApafApaf --11Casp -9Casp -9
Casp -3Casp -3
Casp -7Casp -7Casp -6Casp -6
BADBADCasp -8
AktAkt
Cyt-c
p53
Death SubstratesDeath SubstratesICAD/DFF; PARP; ICAD/DFF; PARP; GelsolvinGelsolvin , etc., etc.
IAPsIAPs
BAXBcl -2
Bcl -XLBfl-1
PUMA NOXA
NF-kB
IkB
IKK
PI3K
FasFas --L geneL gene
FKHDFKHD
Nur77(TR3)
FasDR5
NF-kB
FlipPTEN
DeathDeathReceptorsReceptors
SurvivalSurvivalReceptorsReceptors
Reed JC, NDDR, 2002
Ask1Ask1
FADD ApafApaf --11Casp -9Casp -9
Casp -3Casp -3
Casp -7Casp -7Casp -6Casp -6
BADBADCasp -8
AktAkt
Cyt -c
p53
Death SubstratesDeath SubstratesICAD/DFF; PARP; ICAD/DFF; PARP; GelsolvinGelsolvin , etc., etc.
IAPsIAPs
BAXBcl -2
Bcl -XLBfl -1
PUMA NOXA
NF-B
IB
IKK
PI3K
FasFas -- L geneL gene
FKHDFKHD
Nur77(TR3)
FasDR5
NF-B
FlipPTEN
DeathDeathReceptorsReceptors
SurvivalSurvivalReceptorsReceptors
Reed JC, NDDR, 2002
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MitochondriaMitochondria
CytochromeCytochrome--CC
Caspase-9Caspase-
3
Caspase-8
Fadd/ mort1
FAS/TRAIL
+Apaf-
1
Mitochondrial –Mediated (Intrinsic Pathway)
Receptor Mediated (Extrinsic Pathway)
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MitochondriaMitochondria
CytochromeCytochrome--CC
Caspase-9Caspase-
3
Caspase-8
Fadd/ mort1
FAS/TRAIL
Granzyme BGranzyme B
+Apaf-
1
Mitochondrial –Mediated (Intrinsic Pathway)
Receptor Mediated (Extrinsic Pathway)
FLIP
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MitochondriaMitochondria
CytochromeCytochrome--CC
Caspase-9Caspase-
3
Caspase-8
Fadd/ mort1
FAS/TRAIL
Granzyme BGranzyme B
+Apaf-
1
Mitochondrial –Mediated (Intrinsic Pathway)
Receptor Mediated (Extrinsic Pathway)
XIAP
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? Casp –3/7inhibition
Ubiquitination
BIR 1BIR 1 RING BIR 2BIR 2 BIR 3BIR 3
Casp –9inhibition
XIAP structure –functionXIAP structure –function
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MitochondriaMitochondria
CytochromeCytochrome--CC
Caspase-9Caspase-
3
Caspase-8
Fadd/ mort1
FAS/TRAIL
Granzyme BGranzyme B
+Apaf-
1
Mitochondrial –Mediated (Intrinsic Pathway)
Receptor Mediated (Extrinsic Pathway)
Bcl-2
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MitochondriaMitochondria
CytochromeCytochrome--CC
Caspase-9Caspase-
3
Caspase-8
Fadd/ mort1
FAS/TRAIL
Granzyme BGranzyme B
+Apaf-
1
Mitochondrial –Mediated (Intrinsic Pathway)
Receptor Mediated (Extrinsic Pathway)
XIAP
FLIP
Bcl-2
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•
Bcl-2: apoptosis and cell Bcl-2: apoptosis and cell cyclecycle
MitochondriaMitochondria
Cyto-cCyto-c
Bcl-2Bcl-2
Bax
M
S
G1 G2
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Strategies to inhibit Bcl-2
Antisense Oligonucleotides
ChemicalBcl-2 Inhibitors
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Bcl-2 ProteinBcl-2 Protein
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Bcl-2 ProteinBcl-2 Protein(with BH3 Peptide)(with BH3 Peptide)