p53
Inhibitory Selectivity
p53 Products
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S2929 |
Pifithrin-α (PFTα) HBrPifithrin-α is an inhibitor of p53, inhibiting p53-dependent transactivation of p53-responsive genes. Pifithrin-α is also a potent agonist of the aryl hydrocarbon receptor (AhR). |
A, HAECs were per-incubated with PFTα (3 μmol/L) for 60 min followed by transfected with siB-myb or siNC in the presence of PFTα (3 μmol/L) for 7 d. The expression levels of B-myb, p-p53, p53 and p21 proteins were analysed by western blotting. GAPDH was used as a loading control. A typical group of blots is shown from one of three independent experiments. |
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| S8059 |
Nutlin-3aNutlin-3a ((-)-Nutlin-3), the active enantiomer of Nutlin-3, inhibits the p53/MDM2 interaction with IC50 of 90 nM in a cell-free assay. Nutlin-3a induces autophagy and apoptosis in a p53-dependent manner. |
Nutlin-3a preserved p53 expression without influencing high glucose (HG)-induced podocyte impairment. A-D: cultured podocytes were pre-treated by nutlin-3a for 2 hrs before subjected to HG treatment. Western blotting gel documents (A) and summarized data (B) showing the expression of p53 and MDM2 in podocytes under HG exposure for 24 hrs. n = 4. Western blotting gel documents (C) and summarized data (D) showing the expression of Desmin in podocytes under HG exposure for 24 hrs. n = 3. *P < 0.05 vs. Ctrl, #P < 0.05 vs. Vehl + HG. Ctrl: control; Vehl: vehicle; nutlin-3a: nutlin-3a treatment. |
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| E0068New |
NiCurNiCur is a small molecule which blocks CREB-binding protein (CBP) histone acetyltransferase (HAT) activity and downregulates p53 activation upon genotoxic stress and diminishs the recruitment of p53 as well as RNA Polymerase II and levels of acetylation on histone H3 on CDKN1A promoter. |
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| S2930 |
Pifithrin-μPifithrin-μ (NSC 303580, PFTμ, 2-Phenylethynesulfonamide) is a specific p53 inhibitor by reducing its affinity to Bcl-xL and Bcl-2, and also inhibits HSP70 function and autophagy. |
Effect of pifithrin-μ (the inhibitor of mitochondrial translocation of p53) on MEG3-induced apoptosis in TGF-β1-treated LX-2 cells. The inhibitor pifithrin-μ attenuated cleavage of caspase 3 which blocked apoptosis. The results are expressed as relative expression against control expression without treatment.
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| S7030 |
RG-7112RG7112 (RO5045337) is an orally bioavailable and selective p53-MDM2 inhibitor with HTRF IC50 of 18 nM. |
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| S5791 |
Cyclic Pifithrin-α hydrobromideCyclic Pifithrin-α hydrobromide is the hydrobromide salt form of Cyclic Pifithrin-α, which is a transcriptional inhibitor of p53. |
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| S8187 |
ReACp53ReACp53 is a cell-penetrating peptide, designed to inhibit p53 amyloid formation, resues p53 function in cancer cell lines and in organoids derived from high-grade serous ovarian carcinomas (HGSOC). |
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| S2678 |
NSC 207895NSC 207895 (XI-006) suppresses MDMX with IC50 of 2.5 μM, leading to enhanced p53 stabilization/activation and DNA damage, and also regulates MDM2, an E3 ligase. |
Median overall survival of mice (n = 5 mice in vehicle and PYR-41; n = 4 mice in NSC group) inoculated with IOWA-1T xenografts were increased to 43 ± 0.5 and 39 ± 2 days with PYR-41 (PYR) and NSC-207895 (NSC), respectively, compared with a vehicle-treated control group 33 ± 1 days (*p < 0.05).
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| S8000 |
Tenovin-1Tenovin-1 protects against MDM2-mediated p53 degradation, which involves ubiquitination, and acts through inhibition of protein-deacetylating activities of SirT1 and SirT2. Tenovin-1 is also an inhibitor of dihydroorotate dehydrogenase (DHODH). |
The SIRT1 inhibitor (tenovin-1) partially blocked the protective effect of γ-man in L02 cells. The effect of tenovin-1 on expression and acetylation level of PGC-1α (B) in L02 cells treated with or without γ-man.
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| S7149 |
NSC 319726NSC319726 is a p53(R175) mutant reactivator, exhibits growth inhibition in cells expressing mutant p53, with IC50 of 8 nM for p53(R175) mutant, shows no inhibition for p53 wild-type cells. |
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| E0394New |
YK 3-237YK-3-237, a SIRT1 activator, reduces acetylation of mutant p53 and inhibits the proliferation of triple-negative breast cancer cells. |
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| S0507 |
CBL0137CBL0137 (Curaxin-137) is an inhibitor of the histone chaperone FACT (facilitates chromatin transcription) that simultaneously suppresses NF-κB and activates p53 with EC50 of 0.47 μM and 0.37 μM, respectively. |
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| S7649 |
MI-773 (SAR405838)MI-773 (SAR405838) is an orally available MDM2 antagonist with Ki of 0.88 nM. Phase 1. |
A panel of four NB cell lines were seeded in six-well plates with indicated concentrations of SAR405838 and agar, and grown for 2 to 3 weeks. Cells were stained with crystal violet for 4 hours. Colonies were counted and colony numbers were represented as % vehicle ± S.D. with P < 0.05 (*), P < 0.01 (**) or P < 0.001 (***) (Student's t-test, two-tailed) as indicated.
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| S4900 |
Tenovin-6Tenovin-6 is a small molecule activator of p53 transcriptional activity and inhibits dihydroorotate dehydrogenase (DHODH). Tenovin-6 is also an inhibitor of SirT1 and SirT2. |
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| S2176 |
Tenovin-3Tenovin-3 is an inhibitor of SIRT2. Tenovin-3 is able to increase p53 levels in MCF-7 cells. |
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| S8106 |
NSC59984NSC59984 is a p53 pathway activator via induction of mutant p53 protein degradation and p73 activation. |
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| S8483 |
CBL0137 HClCBL0137 (CBLC137, Curaxin 137) HCl activates p53 and inhibits NF-kB with EC50s of 0.37 μM and 0.47 μM in the cell-based p53 and NF-kB reporter assays, respectively. It also inhibits histone chaperone FACT (facilitates chromatin transcription complex). |
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| S8149 |
NSC348884NSC348884, as a nucleophosmin inhibitor, inhibit cell proliferation and induce apoptosis in various cancer cell lines with IC50 values ranging from 1.4-4 µM. |
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| S7723 |
PRIMA-1PRIMA-1 (2,2-Bis(hydroxymethyl)-3-quinuclidinone) is a mutant p53 reactivator. It induces apoptosis and inhibits growth of human tumors with mutant p53. |
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| S2341 |
(-)-Parthenolide(-)-Parthenolide, an inhibitor of the Nuclear Factor-κB Pathway, specifically depletes HDAC1 protein without affecting other class I/II HDACs; Also promotes the ubiquitination of MDM2 and activates p53 cellular functions. |
-Parthenolide-S234101W0220161110.gif)
-Parthenolide-S234101W0220161110.gif)
G. To evaluate effects of IKBKE/TBK1 inhibition on NF-κB signaling in Ewing, TC32 cells were incubated with CYT387 for six hours prior to stimulation with TNF-α (30 ng/mL). IκBα degradation was measured by harvesting TC32 cells thirty minutes after stimulation with TNF-α. TNF-α stimulation resulted in degradation of IκBα, and this effect was attenuated with CYT387 treatment. Parthenolide, an inhibitor of IκBα phosphorylation was used as a positive control. Similar effects of CYT387 activity were seen in HEK-293T cells which also express IKBKΕ. Nuclear extracts were prepared from TC32 cells harvested following forty-five minutes of TNF-α stimulation. Treatment with CYT387 resulted in decreased nuclear localization of NF-κB family proteins RelA/p65 and c-Rel. There was a modest impairment of p50 nuclear localization as compared to parthenolide and DMSO controls and no change in p52 nuclear localization. RelB (not shown) is not expressed in TC32 cells |
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| S2427 |
Triglycidyl Isocyanurate (Teroxirone)Triglycidyl Isocyanurate (Teroxirone, Tris(2,3-epoxypropyl) Isocyanurate, TGI, TGIC) is a triazene triepoxide with antineoplastic activity. It inhibits growth of human non-small cell lung cancer cells by activating p53. Triglycidyl Isocyanurate alkylates and cross-links DNA, thereby inhibiting DNA replication. Triglycidyl Isocyanurate is also used in various polyester powder coatings in the metal finishing industry. |
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| S6882 |
HI-TOPK-032HI-TOPK-032 is a potent and specific inhibitor of TOPK. HI-TOPK-032 also reduces ERK-RSK phosphorylation, regulates of the abundance of p53, cleaved caspase-7, and cleaved PARP, and induces apoptosis in cancer cells. |
||
| S6851 |
RA-190RA190, a bis-benzylidine piperidon, is a potent, selective and oral effective inhibitor of proteasome ubiquitin receptor RPN13/ADRM1 with anticancer activity. RA190 triggers ER stress response, p53/p21 signaling axis and autophagy in multiple myeloma cells. |
||
| E0035 |
CP-31398 DihydrochlorideCP-31398 Dihydrochloride stabilizes the active conformation of p53 and promotes p53 activity in cancer cell lines with mutant or wild-type p53. |
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S2929 |
Pifithrin-α (PFTα) HBrPifithrin-α is an inhibitor of p53, inhibiting p53-dependent transactivation of p53-responsive genes. Pifithrin-α is also a potent agonist of the aryl hydrocarbon receptor (AhR). |
A, HAECs were per-incubated with PFTα (3 μmol/L) for 60 min followed by transfected with siB-myb or siNC in the presence of PFTα (3 μmol/L) for 7 d. The expression levels of B-myb, p-p53, p53 and p21 proteins were analysed by western blotting. GAPDH was used as a loading control. A typical group of blots is shown from one of three independent experiments. |
|
| S8059 |
Nutlin-3aNutlin-3a ((-)-Nutlin-3), the active enantiomer of Nutlin-3, inhibits the p53/MDM2 interaction with IC50 of 90 nM in a cell-free assay. Nutlin-3a induces autophagy and apoptosis in a p53-dependent manner. |
Nutlin-3a preserved p53 expression without influencing high glucose (HG)-induced podocyte impairment. A-D: cultured podocytes were pre-treated by nutlin-3a for 2 hrs before subjected to HG treatment. Western blotting gel documents (A) and summarized data (B) showing the expression of p53 and MDM2 in podocytes under HG exposure for 24 hrs. n = 4. Western blotting gel documents (C) and summarized data (D) showing the expression of Desmin in podocytes under HG exposure for 24 hrs. n = 3. *P < 0.05 vs. Ctrl, #P < 0.05 vs. Vehl + HG. Ctrl: control; Vehl: vehicle; nutlin-3a: nutlin-3a treatment. |
|
| E0068New |
NiCurNiCur is a small molecule which blocks CREB-binding protein (CBP) histone acetyltransferase (HAT) activity and downregulates p53 activation upon genotoxic stress and diminishs the recruitment of p53 as well as RNA Polymerase II and levels of acetylation on histone H3 on CDKN1A promoter. |
||
| S2930 |
Pifithrin-μPifithrin-μ (NSC 303580, PFTμ, 2-Phenylethynesulfonamide) is a specific p53 inhibitor by reducing its affinity to Bcl-xL and Bcl-2, and also inhibits HSP70 function and autophagy. |
Effect of pifithrin-μ (the inhibitor of mitochondrial translocation of p53) on MEG3-induced apoptosis in TGF-β1-treated LX-2 cells. The inhibitor pifithrin-μ attenuated cleavage of caspase 3 which blocked apoptosis. The results are expressed as relative expression against control expression without treatment.
|
|
| S7030 |
RG-7112RG7112 (RO5045337) is an orally bioavailable and selective p53-MDM2 inhibitor with HTRF IC50 of 18 nM. |
||
| S5791 |
Cyclic Pifithrin-α hydrobromideCyclic Pifithrin-α hydrobromide is the hydrobromide salt form of Cyclic Pifithrin-α, which is a transcriptional inhibitor of p53. |
||
| S8187 |
ReACp53ReACp53 is a cell-penetrating peptide, designed to inhibit p53 amyloid formation, resues p53 function in cancer cell lines and in organoids derived from high-grade serous ovarian carcinomas (HGSOC). |
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S2678 |
NSC 207895NSC 207895 (XI-006) suppresses MDMX with IC50 of 2.5 μM, leading to enhanced p53 stabilization/activation and DNA damage, and also regulates MDM2, an E3 ligase. |
Median overall survival of mice (n = 5 mice in vehicle and PYR-41; n = 4 mice in NSC group) inoculated with IOWA-1T xenografts were increased to 43 ± 0.5 and 39 ± 2 days with PYR-41 (PYR) and NSC-207895 (NSC), respectively, compared with a vehicle-treated control group 33 ± 1 days (*p < 0.05).
|
|
| S8000 |
Tenovin-1Tenovin-1 protects against MDM2-mediated p53 degradation, which involves ubiquitination, and acts through inhibition of protein-deacetylating activities of SirT1 and SirT2. Tenovin-1 is also an inhibitor of dihydroorotate dehydrogenase (DHODH). |
The SIRT1 inhibitor (tenovin-1) partially blocked the protective effect of γ-man in L02 cells. The effect of tenovin-1 on expression and acetylation level of PGC-1α (B) in L02 cells treated with or without γ-man.
|
|
| S7149 |
NSC 319726NSC319726 is a p53(R175) mutant reactivator, exhibits growth inhibition in cells expressing mutant p53, with IC50 of 8 nM for p53(R175) mutant, shows no inhibition for p53 wild-type cells. |
||
| E0394New |
YK 3-237YK-3-237, a SIRT1 activator, reduces acetylation of mutant p53 and inhibits the proliferation of triple-negative breast cancer cells. |
||
| S0507 |
CBL0137CBL0137 (Curaxin-137) is an inhibitor of the histone chaperone FACT (facilitates chromatin transcription) that simultaneously suppresses NF-κB and activates p53 with EC50 of 0.47 μM and 0.37 μM, respectively. |
||
| S7649 |
MI-773 (SAR405838)MI-773 (SAR405838) is an orally available MDM2 antagonist with Ki of 0.88 nM. Phase 1. |
A panel of four NB cell lines were seeded in six-well plates with indicated concentrations of SAR405838 and agar, and grown for 2 to 3 weeks. Cells were stained with crystal violet for 4 hours. Colonies were counted and colony numbers were represented as % vehicle ± S.D. with P < 0.05 (*), P < 0.01 (**) or P < 0.001 (***) (Student's t-test, two-tailed) as indicated.
|
|
| S4900 |
Tenovin-6Tenovin-6 is a small molecule activator of p53 transcriptional activity and inhibits dihydroorotate dehydrogenase (DHODH). Tenovin-6 is also an inhibitor of SirT1 and SirT2. |
||
| S2176 |
Tenovin-3Tenovin-3 is an inhibitor of SIRT2. Tenovin-3 is able to increase p53 levels in MCF-7 cells. |
||
| S8106 |
NSC59984NSC59984 is a p53 pathway activator via induction of mutant p53 protein degradation and p73 activation. |
||
| S8483 |
CBL0137 HClCBL0137 (CBLC137, Curaxin 137) HCl activates p53 and inhibits NF-kB with EC50s of 0.37 μM and 0.47 μM in the cell-based p53 and NF-kB reporter assays, respectively. It also inhibits histone chaperone FACT (facilitates chromatin transcription complex). |
||
| S8149 |
NSC348884NSC348884, as a nucleophosmin inhibitor, inhibit cell proliferation and induce apoptosis in various cancer cell lines with IC50 values ranging from 1.4-4 µM. |
||
| S7723 |
PRIMA-1PRIMA-1 (2,2-Bis(hydroxymethyl)-3-quinuclidinone) is a mutant p53 reactivator. It induces apoptosis and inhibits growth of human tumors with mutant p53. |
||
| S2341 |
(-)-Parthenolide(-)-Parthenolide, an inhibitor of the Nuclear Factor-κB Pathway, specifically depletes HDAC1 protein without affecting other class I/II HDACs; Also promotes the ubiquitination of MDM2 and activates p53 cellular functions. |
-Parthenolide-S234101W0220161110.gif)
G. To evaluate effects of IKBKE/TBK1 inhibition on NF-κB signaling in Ewing, TC32 cells were incubated with CYT387 for six hours prior to stimulation with TNF-α (30 ng/mL). IκBα degradation was measured by harvesting TC32 cells thirty minutes after stimulation with TNF-α. TNF-α stimulation resulted in degradation of IκBα, and this effect was attenuated with CYT387 treatment. Parthenolide, an inhibitor of IκBα phosphorylation was used as a positive control. Similar effects of CYT387 activity were seen in HEK-293T cells which also express IKBKΕ. Nuclear extracts were prepared from TC32 cells harvested following forty-five minutes of TNF-α stimulation. Treatment with CYT387 resulted in decreased nuclear localization of NF-κB family proteins RelA/p65 and c-Rel. There was a modest impairment of p50 nuclear localization as compared to parthenolide and DMSO controls and no change in p52 nuclear localization. RelB (not shown) is not expressed in TC32 cells |
|
| S2427 |
Triglycidyl Isocyanurate (Teroxirone)Triglycidyl Isocyanurate (Teroxirone, Tris(2,3-epoxypropyl) Isocyanurate, TGI, TGIC) is a triazene triepoxide with antineoplastic activity. It inhibits growth of human non-small cell lung cancer cells by activating p53. Triglycidyl Isocyanurate alkylates and cross-links DNA, thereby inhibiting DNA replication. Triglycidyl Isocyanurate is also used in various polyester powder coatings in the metal finishing industry. |
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| S6882 |
HI-TOPK-032HI-TOPK-032 is a potent and specific inhibitor of TOPK. HI-TOPK-032 also reduces ERK-RSK phosphorylation, regulates of the abundance of p53, cleaved caspase-7, and cleaved PARP, and induces apoptosis in cancer cells. |
||
| S6851 |
RA-190RA190, a bis-benzylidine piperidon, is a potent, selective and oral effective inhibitor of proteasome ubiquitin receptor RPN13/ADRM1 with anticancer activity. RA190 triggers ER stress response, p53/p21 signaling axis and autophagy in multiple myeloma cells. |
| Catalog No. | Information | Product Use Citations | Product Validations |
|---|---|---|---|
| E0035 |
CP-31398 DihydrochlorideCP-31398 Dihydrochloride stabilizes the active conformation of p53 and promotes p53 activity in cancer cell lines with mutant or wild-type p53. |
