p53
Signaling Pathway Map
Research Area
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. |
|
| 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. |
|
| 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. |
||
| S9235 |
DidyminDidymin (Neoponcirin, Isosakuranetin-7-O-rutinoside) is a citrus-derived natural compound that kills p53 wild-type as well as drug-resistant p53-mutant neuroblastoma cells in culture. It possesses antioxidant, anti-inflammation and anti-cancer properties. |
||
| 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). |
||
| S1172 |
Serdemetan (JNJ-26854165)Serdemetan (JNJ-26854165) acts as a HDM2 ubiquitin ligase antagonist and also induces early apoptosis in p53 wild-type cells, inhibits cellular proliferation followed by delayed apoptosis in the absence of functional p53. Phase 1. |
|
|
| 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).
|
|
| S2781 |
RITA (NSC 652287)RITA (NSC 652287) induces both DNA-protein and DNA-DNA cross-links with no detectable DNA single-strand breaks, and also inhibits MDM2-p53 interaction by targeting p53. |
To determine the number of viable cells, cells were serum starved for 8 hours and treated with 25 nM RITA and stimulated with 1ug/mL SDF1α for 48 hours in serum-free media. After 48 hours, cells were harvested and counted by trypan blue exclusion, using standard methods.
|
|
| 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. |
||
| 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. |
||
| S8580 |
COTI-2COTI-2 is an orally available third generation thiosemicarbazone and activator of mutant forms of the p53 protein, with potential antineoplastic activity. |
||
| 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. |
||
| S7724 |
Eprenetapopt (APR-246)Eprenetapopt (APR-246, PRIMA-1MET) is a small organic molecule that has been shown to restore tumour-suppressor function primarily to mutant p53 and also to induce cell death in various cancer types. APR-246 induces apoptosis and autophagy. |
||
| S5811 |
Kevetrin hydrochlorideKevetrin hydrochloride (Thioureidobutyronitrile) is a water-soluble, small molecule and activator of the tumor suppressor protein p53, with potential antineoplastic activity. |
||
| 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)
-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. |
||
| 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. |
||
| E0035New |
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. |
||
| S8728 |
PK11000PK11000 stabilizes the DBD of both WT and mutant p53 proteins by covalent cysteine modification without compromising DNA binding and effective in inducing cell death. |
| 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. |
|
| 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. |
||
| S9235 |
DidyminDidymin (Neoponcirin, Isosakuranetin-7-O-rutinoside) is a citrus-derived natural compound that kills p53 wild-type as well as drug-resistant p53-mutant neuroblastoma cells in culture. It possesses antioxidant, anti-inflammation and anti-cancer properties. |
||
| 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 |
|---|---|---|---|
| S1172 |
Serdemetan (JNJ-26854165)Serdemetan (JNJ-26854165) acts as a HDM2 ubiquitin ligase antagonist and also induces early apoptosis in p53 wild-type cells, inhibits cellular proliferation followed by delayed apoptosis in the absence of functional p53. Phase 1. |
|
|
| 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).
|
|
| S2781 |
RITA (NSC 652287)RITA (NSC 652287) induces both DNA-protein and DNA-DNA cross-links with no detectable DNA single-strand breaks, and also inhibits MDM2-p53 interaction by targeting p53. |
To determine the number of viable cells, cells were serum starved for 8 hours and treated with 25 nM RITA and stimulated with 1ug/mL SDF1α for 48 hours in serum-free media. After 48 hours, cells were harvested and counted by trypan blue exclusion, using standard methods.
|
|
| 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. |
||
| 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. |
||
| S8580 |
COTI-2COTI-2 is an orally available third generation thiosemicarbazone and activator of mutant forms of the p53 protein, with potential antineoplastic activity. |
||
| 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. |
||
| S7724 |
Eprenetapopt (APR-246)Eprenetapopt (APR-246, PRIMA-1MET) is a small organic molecule that has been shown to restore tumour-suppressor function primarily to mutant p53 and also to induce cell death in various cancer types. APR-246 induces apoptosis and autophagy. |
||
| S5811 |
Kevetrin hydrochlorideKevetrin hydrochloride (Thioureidobutyronitrile) is a water-soluble, small molecule and activator of the tumor suppressor protein p53, with potential antineoplastic activity. |
||
| 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 |
|---|---|---|---|
| E0035New |
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. |
||
| S8728 |
PK11000PK11000 stabilizes the DBD of both WT and mutant p53 proteins by covalent cysteine modification without compromising DNA binding and effective in inducing cell death. |
