Pifithrin-α, p-Nitro, Cyclic (PFN-α) is cell-permeable and active-form p53 inhibitor. Pifithrin-α, p-Nitro, Cyclic is one order magnitude more active than Pifithrin-α in protecting cortical neurons exposed to Etoposide (ED50=30 nM). Pifithrin-α, p-Nitro, Cyclic behaves as a p53 posttranscriptional activity inhibitor. Pifithrin-α, p-Nitro, Cyclic do not prevent p53 phosphorylation on the S15 residue[1][2].
p53 (17-26) is amino acids 17 to 26 fragment of p53. p53 (17-26) is mdm-2-binding domain[1].
AM-8735 is a potent and selective MDM2 inhibitor with an IC50 of 25 nM.
Sanggenol L induces caspase-dependent and caspase-independent apoptosis in melanoma skin cancer cells[1]. Sanggenol L induces of apoptosis via suppression of PI3K/Akt/mTOR signaling and cell cycle arrest via activation of p53 in p
MDM2-p53-IN-16 is a MDM2-p53 complex inhibitor with an IC50 value of 4.3 nM to dissociate human p53/MDM2 complex. MDM2-p53-IN-16 reactivates p53, and induces Glioblastoma Multiforme (GBM) cell apoptosis and cell-cycle arrest. MDM2-p53-IN-16 can be used for the cancer research[1].
NVP-CGM097 sulfate is a potent and selective MDM2 inhibitor with IC50 of 1.7±0.1 nM for hMDM2.
PROTAC MDM2 Degrader-1 is a MDM2 degrader based on PROTAC technology. PROTAC MDM2 Degrader-1 composes of a potent MDM2 inhibitor, linker, and the MDM2 ligand for E3 ubiquitin ligase[1].
Anticancer agent 50 (compound 6) is a potent ABCB1 efflux pump modulator. Anticancer agent 50 shows cytotoxic effects and antiproliferative effects. Anticancer agent 50 decreases the expression of cyclin D1 and induces p53 expression. Anticancer agent 50 has the potential for the research of T-lymphoma[1].
p53-MDM2-IN-1 (Example 30) is an inhibitor of p53-MDM2/X protein interaction with an Ki value of 23.35 µM. p53-MDM2-IN-1 can be used for anti-tumor research[1].
BH3I-1 is a Bcl-2 family antagonist, which inhibits the binding of the Bak BH3 peptide to Bcl-xL with a Ki of 2.4±0.2 μM in FP assay. BH3I-1 has a Kd of 5.3 μM against the p53/MDM2 pair.
PROTAC MDM2 Degrader-2 is a MDM2 degrader based on PROTAC technology. PROTAC MDM2 Degrader-2 composes of a potent MDM2 inhibitor, linker, and the MDM2 ligand for E3 ubiquitin ligase[1].
A novel reactivator of wild-type and mutant p53, shows a p53-dependent anti-proliferative activity in human wt and mut p53R280K-expressing tumor cells; enhances p53 transcriptional activity and restores wt-like DNA binding ability to mut p53R280K; inhibits the growth of wt/mut p53-expressing tumors in xenograft mice models, without apparent toxicity.
Condurango glycoside A is an activator of p53. Condurango glycoside A initiates ROS generation and up-regulates p53 expression. Condurango glycoside A induces apoptosis and pre-mature senescence associated with DNA damage in HeLa cells[1].
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.IC50 value: HDM2 ubiquitin ligaseTarget: in vitro: JNJ 26854165 is a novel tryptamine derivative which activates p53 and acts as a HDM2 ubiquitin ligase antagonist. JNJ 26854165 inhibits cell growth and induces apoptosis in leukemia cell lines with IC50 values of 0.24, 0.33, 0.32 and 0.44 μM at 72 hours for OCI-AML-3, MOLM-13, NALM-6 and REH cells, respectively. In addition, JNJ 26854165 accelerates proteasome-mediated degradation of p21 and antagonizes the transcriptional induction of p21 by p53. It also induces S-phase delay and upregulates E2F1 expression in p53 mutant cells, resulting in preferential apoptosis of S-phase cells. JNJ 26854165 is an oral Mdm2 inhibitor which can inhibit the interaction of Mdm2-p53 complex with the proteasome and increase p53 levels by binding to RING domain of Mdm2. A recent study shows that JNJ 26854165 inhibits clonogenic survival in four human cancer cell lines: H460, A549, p53-WT-HCT116, and p53-null-HCT116.in vivo:JNJ 26854165 leads to significant differences in EFS distribution in 17 of the 36 (47%) evaluable solid tumor xenografts and in 5 of 7 (71%) of the evaluable ALL xenografts using a dose of 20 mg/kg administered via oral gavage daily for 5 days, repeated for 6 weeks.
Inauhzin is a dual SirT1/IMPDH2 inhibitor, and acts as an activator p53, used in the research of cancer.
RETRA is a mutant p53-dependent activator of p73 that suppresses mutant p53-bearing cancer cells. RETRA increases the expression level of p73, and a release of p73 from the blocking complex with mutant p53, which produces tumor-suppressor effects[1].
MDM2/XIAP-IN-3 (compound 3e) is a dual MDM2/XIAP inhibitor. MDM2/XIAP-IN-3 reduces MDM2 and XIAP protein levels and increases p53 expression, thereby inhibiting cancer cell growth and causing cell death[1].
Triglycidyl isocyanurate (TGIC; Teroxirone) is a triazene triepoxide with antiangiogenic and antineoplastic activities. Triglycidyl isocyanurate inhibits the growth of non-small-cell-lung cancer cells via p53 activation. Triglycidyl isocyanurate induces cell apoptosis. Triglycidyl isocyanurate can be used for cancer research[1][2].
MD-224 is a first-in-class and highly potent small-molecule human murine double minute 2 (MDM2) degrader based on the proteolysistargeting chimera (PROTAC) concept. MD-224 induces rapid degradation of MDM2 at concentrations <1 nM in human leukemia cells, and achieves an IC50 value of 1.5 nM in inhibition of growth of RS4;11 cells. MD-224 has the potential to be a new class of anticancer agent[1].
BAY 1892005 is a regulator of p53 protein and acts on p53 condensates without causing mutant p53 reactivation[1].
FOXO4-DRI is a cell-permeable peptide antagonist that blocks the interaction of FOXO4 and p53. FOXO4-DRI is a senolytic peptide that induces apoptosis of senescent cells[1].
VEGFR-2-IN-23 (compound 11b) is a potent and selective VEGFR-2 inhibitor with an IC50 value of 0.34 nM. VEGFR-2-IN-23 shows antitumor activity. VEGFR-2-IN-23 induces apoptosis and cell cycle arrest at G1 phase[1].
CG-200745 is a potent HDAC inhibitor, with IC50s of <3 μM for sensitive non-small cell lung cancer (NSCLC) cell lines. CG-200745 induces the accumulation of p53, promotes p53-dependent transactivation, and enhances the expression of proteins encoded by p53 target genes, MDM2 and p21 (Waf1/Cip1) in human prostate cancer cells[1]. CG-200745 attenuates phosphorylation of p38 MAPK in kidneys and it has a renoprotective effect by suppressing renal fibrosis and inflammation in a unilateral ureteral obstruction (UUO) mouse model[2].
YL93 is a dual inhibitors of MDM2/4 with Ki values of 0.64 μM and 1.1 nM for MDM4 and MDM2, respectively. YL93 induces cell-cycle arrest and apoptosis. YL93 shows p53-dependent cell growth inhibition[1].
MB710 is a small-molecule p53 mutant Y220C stabilizer, binds tightly to the Y220C pocket and stabilizes p53-Y220C in vitro.
MIRA-1 is a maleimide analogue. MIRA-1 can induce apoptosis in mutant p53 cells via restoration of p53-dependent transcriptional transactivation. MIRA-1 has anticancer activity[1].
CPT2 (Carnitine palmitoyltransferase 2), an enzyme that participates in fatty acid oxidation, also is a colorectal cancer (CRC) prognostic biomarker. CPT2 overexpression can activate p-p53 to increase p53 expression, thereby inhibiting tumor proliferation and promoting apoptosis. CPT2 deficiency results in the most common inherited disorder of long-chain fatty acid oxidation affecting skeletal muscle. Downregulation of CPT2 is also highly correlated with the progression of various cancers and has potential for cancer research[1][2].
NSC319726 is a mutant p53R175 reactivator; inhibits growth of fibroblasts expressing the p53R175 mutation (IC50 = 8 nM); shows no inhibition for p53 wild-type cells.IC50 value: 8 nM [1]Target: mutant p53R175 reactivatorin vitro: For NSC319726, the effect was even greater as the IC50for the 175 mutant was 8 nM while the IC50 of the WT was not reached. NSC319726 did not induce WT p53 protein levels or transcriptional activity as common cytotoxic agents such as etoposide do in vitro. NSC319726 exhibited a much higher sensitivity for the MEF-p53R172H/R172H cell line as compared to the p53+/+ and p53-/- controls. NSC319726 treatment of a MEF cell line derived from p53R172H/R172H mice resulted in aloss of PAB240 immunoflouresence staining. in vivo: At a dose of 1mg/kg, tumor growth of the H460 (p53+/+) and MDAMB468 (p53R273W) xenografts was not inhibited relative to the vehicle control whereas tumor growth was significantly inhibited in the TOV112D (p53R175H) xenografts. When we lowered the dose ten-fold to 0.1 mg/kg in the TOV112D mice, we observed only a small difference in tumor growth inhibition demonstrating both a dosage effect of the drug and a larger therapeutic window.Taken together, these findings provide in vivo evidence for allele specific p53 mutant reactivation.
GY1-22 is an inhibitor of DNAJA1-mutP53R175H interacting pocket. GY1-22 can be used for the research of cancer[1].
SAR405838 is a highly potent and selective MDM2 inhibitor, binds to MDM2 with Ki= 0.88 nM and has high specificity over other proteins.IC50 value: 0.88 nM (Ki) [1]Target: MDM2in vitro: SAR405838 potently inhibits cell growth in cancer cell lines, including SJSA-1 (IC50, 0.092 μM), RS4;11 (IC50, 0.089 μM), LNCaP (IC50, 0.27 μM), and HCT-116 (IC50, 0.20 μM) cells, and displays high selectivity over cancer cell lines with mutated or deleted p53, including SAOS-2 (IC50, >10 μM), PC-3 (IC50, >10 μM), SW620 (IC50, >10 μM), and HCT-116 (p53-/-) (IC50, >20 μM) cells.[1] SAR405838 effectively induces apoptosis in the RS4;11 cell line. SAR405838 potently inhibits cell growth and induces dose-dependent apoptosis in the ABTR1 and ABTR2 sublines, albeit with modestly reduced potency compared with that in the control RS4;11 cell line.[2]in vivo: At well-tolerated dose schedules, SAR405838 achieves either durable tumor regression or complete tumor growth inhibition in mouse xenograft models of SJSA-1 osteosarcoma, RS4;11 acute leukemia, LNCaP prostate cancer and HCT-116 colon cancer. Remarkably, a single oral dose of SAR405838 is sufficient to achieve complete tumor regression in the SJSA-1 model. In the SJSA-1 osteosarcoma, acute lymphoblastic leukemia RS4;11, LNCaP prostate cancer, and HCT-116 colon cancer xenograft model, MI-773 (p.o.) effectively inhibits tumor growth in a dose-dependent manner (10 mg/kg, 30 mg/kg, 50 mg/kg, 100 mg/kg, and 200 mg/kg,). [1]