MDM-2/p53

USP7-IN-4(USP7 inhibitor ALM4) is a non-competitive, potent and selective inhibitor of USP7 (ubiquitin-specific protease 7) with an IC50 = 6 nM, up-regulates p53 and p21, down-regulates MDM2, increases the level of ubiquitination of MDM2, and exhibits anti-proliferative activity in a variety of cancer cell lines, with an EC50 = 2.0 nM in RS4;11 (acute lymphoblastic leukemia cell line) .

D-CopA3 is an inhibitor of MDM2 and an activator of the p53 signaling pathway. It exhibits cytotoxicity in colorectal cancer cells HCT-116, LoVo, and RKO with IC50 values of 15-18 μM and induces JNK Beclin-1 mediated autophagy. D-CopA3 downregulates the expression of the cell cycle inhibitor protein p21Cip1 Waf1, enhances mucosal barrier function, and reduces infiltration of inflammatory mediators. It shows anti-inflammatory properties in mouse models of acute enteritis induced by C. difficile toxin A and chronic colitis induced by DSS. Additionally, D-CopA3 demonstrates antitumor activity in a mouse HCT-116 xenograft model.

PSF-IN-2 (Compound (C)-30) is a PSF inhibitor with an IC50 value of 0.005 pM. It exhibits anticancer properties, inhibiting the proliferation of 22Rv1 cells with an IC50 value of 0.5 μM. PSF-IN-2 activates the p53 signaling pathway by disrupting PSF-RNA binding, inducing expression of related genes, promoting apoptosis, and inhibiting the cell cycle. This compound is applicable in cancer research.

Decarbamoylmitomycin C, an analog of Mitomycin C (MC), functions as a DNA alkylating agent. It is capable of activating chromatin relaxation by the ataxia-telangiectasia and Rad3-related protein (ATR) in a p53-independent manner.

HL001 is an orally active small molecule inhibitor of cyclophilin A (CypA) and a receptor antagonist of lysophosphatidic acid 1 (LPA1). It induces cell cycle arrest and apoptosis in tumor cells via p53. By downregulating G3BP1, HL001 promotes reactive oxygen species production and DNA damage to stabilize p53. It disrupts the interaction between MDM2 and p53-72R in a CypA-dependent manner. HL001 exhibits antitumor activity and can also be used in research on pulmonary fibrosis.

p53 Activator 14 (Compound 7A) is a derivative of Neratinib that can induce DNA damage and activate p53, thereby inhibiting the proliferation of various cancer cells, with an IC50 of 7.21 μM for HCT116 cells. This compound hinders adhesion, migration, and invasion of HCT116 cells, disrupts the cell cycle, and triggers apoptosis. In addition, p53 Activator 14 exhibits anti-tumor properties and inhibits angiogenesis in the chick embryo chorioallantoic membrane (CAM) model.

Antitumor agent-202 is a stabilizer of the p53Y220C mutant, selectively inhibiting the proliferation of tumor cells carrying the p53Y220C mutation. It is applicable for research focused on cancers associated with the p53 Y220C mutation.

Microtubulin-IN-1 (Compound 8g) is an inhibitor of microtubulin, targeting the colchicine-binding site to disrupt tubulin integrity and induce upregulation of p53 protein expression. It exhibits antiproliferative activity across various cancer cell lines, including NCI-H460, BxPC-3, and HT-29, with IC50 values of 2.4, 1.6, and 2.07 nM, respectively. Additionally, Microtubulin-IN-1 induces cell cycle arrest at the G2/M phase and apoptosis in NCI-H460 cells.

YL-1-9 is an inhibitor that prevents the degradation of p53 by MDM2 through tight binding to the crucial hydrophobic pocket of MDM2. It can induce cell cycle arrest and apoptosis in breast cancer cells [1].

ZS3-046 is a TAF1 PROTAC degrader that facilitates the ubiquitination and subsequent degradation of TAF1. It can activate p53 and induce apoptosis in acute myeloid leukemia (AML) cells. Additionally, ZS3-046 demonstrates anti-tumor efficacy in AML xenograft mouse models.

TCF4 β-catenin-IN-1 (Compound 8b) is an inhibitor of TCF4 β-catenin that induces apoptosis. This compound enhances the expression of p53, caspase-3, caspase-8, caspase-9, and Bax proteins, while reducing Bcl-2 protein levels. TCF4 β-catenin-IN-1 also inhibits CYP3A4, CYP1A2, and CYP2C19, demonstrating significant cytotoxic activity in cancer cells.

PROTAC LZK-IN-1 (Compound 21A) is a PROTAC molecule that targets the degradation of LZK (leucine zipper kinase, encoded by MAP3K13). At a concentration of 10 μM, PROTAC LZK-IN-1 facilitates the degradation of LZK and inhibits the expression of p53 and c-MYC, leading to reduced viability of global head and neck squamous cell carcinoma (HNSCC) cell lines. This compound is applicable in anticancer research.

SIRT-IN-7 (Compound 7ba) is a SIRT inhibitor. It effectively suppresses the expression of SIRT1, SIRT2, and SIRT3, leading to increased acetylation and activation of p53. Additionally, SIRT-IN-7 inhibits the proliferation of breast cancer cells and induces apoptosis and autophagy, demonstrating antitumor activity.

ASTX295 is a selective mouse double minute 2 (MDM2) antagonist with an IC50 value of less than 1 nM. It specifically inhibits the interaction between MDM2 and p53, reactivating wild-type (WT) TP53, which subsequently induces the expression of related transcriptional targets, leading to cell death and cell cycle arrest. ASTX295 holds potential for research in lymphoid malignancies such as diffuse large B-cell lymphoma (DLBCL), mantle cell lymphoma (MCL), and T-cell lymphoma.

P53/TLR2 modulator-1 (Compound Z9) is an agent that targets both the P53 pathway and TLR2, exhibiting radioprotective properties. It mitigates apoptosis by inhibiting radiation-induced expression of P53 and Bax. Concurrently, it enhances the TLR2 pathway by upregulating downstream proteins MyD88 and P65, which promotes secretion of cytokines like IL-6, providing radioprotective effects. P53/TLR2 modulator-1 shows significant radioprotective activity in AHH-1 and HUVECs cells, enhances survival rates in C57BL/6J mice exposed to lethal radiation doses, and alleviates radiation-induced damage to their hematopoietic system, intestinal villi, and spleen. It is applicable for research on radiation-related diseases.

p38α inhibitor6 (compound 19) is a p38α inhibitor with an IC50 value of 0.68 μM. It induces apoptosis, arrests the cell cycle in the G0 and G2/M phases, reduces TNF-α concentration, upregulates the expression of the tumor suppressor gene p53, increases the Bax/BCL-2 ratio, and activates caspase3/7.

p53 Stabilizer 2 (Compound 17a16) is a p53 stabilizing agent. It can induce S-phase arrest and apoptosis in both p53-functional and p53-deficient cancer cells. Additionally, p53 Stabilizer 2 triggers mitochondrial stress and activates two immune checkpoint pathways: NA-PKcs dependent p53 stabilization and the ATR-Chk1 axis activation. It also inhibits tumor growth in p53-deficient xenograft models.

KT-253 is a p53 stabilizer and a PROTAC degrader of MDM2 (DC50=0.4 nM). It inhibits the proliferation of cancer cells RS4;11 with an IC50 of 0.3 nM, induces cell cycle arrest in the G2 M phase, and triggers apoptosis. In mouse models, KT-253 demonstrates antitumor activity. (Pink: ligand for target protein MDM2 ligand 4; Black: linker; Blue: ligand for E3 ligase cereblon)

MI-888 (TFA) is an orally active inhibitor of the MDM2-p53 interaction with a Ki of 0.44 nM. It can induce rapid, complete, and durable tumor regression in xenograft mouse models.

NMC-001 is a human IgG1 monoclonal antibody (mAb) that targets MDM2. It is useful for pancreatic cancer research. The recommended isotype control is HumanIgG1kappa, Isotype Control.

NA-17 is a naphthalimide compound with antitumor activity and exhibits lower toxicity to normal cells such as HL-7702 and WI-38. It demonstrates p53-dependent inhibition selectivity in various NSCLC cells, inducing the accumulation of active p53 in the mitochondria and nuclei of these cells. NA-17 causes cell cycle arrest in the G1 phase and promotes apoptosis and cell death.

MDM2ligand 4 is a ligand of MDM2 and can be used in the synthesis of the PROTAC degrader [KT-253].

BRD6257 is an orally active inhibitor of protein phosphatase 1D (proteinphosphatase, Mg2+ Mn2+ dependent 1D, PPM1D) with an IC50 of 5 nM. It activates the p53 signaling pathway (EC50 of 51 nM), enhances p21 expression, and inhibits the proliferation of cancer cells MOLM13 (IC50 = 2.8 μM). BRD6257 demonstrates good metabolic stability in human and rat liver microsomes.

4-Hydroxyresveratrol (3,4,5,4'-Tetrahydroxystibene) is a resveratrol analog that variably induces the expression of pro-apoptotic genes such as p53 and Bax. It triggers apoptosis in SV40 virus-transformed WI38 cells (WI38VA), but not in WI38 cells. Additionally, 4-Hydroxyresveratrol significantly increases the expression of p53, GADD45, and Bax genes in WI38VA cells, while suppressing the expression of the bcl-2 gene.