Cancer-Targeting Compound 1

Cancer-Targeting Compound 1 can be used in the study of hormone-related cancers, including the treatment or prevention of fibroids, uterine leiomyomas, polycystic ovarian syndrome, or hormone-dependent Cancer, among others.

PBRM1-BD2-IN-7, a selective and cell-active inhibitor targeting the polybromo-1 (PBRM1) bromodomain, demonstrates inhibitory efficacy against PBRM1-BD2 with an IC50 value of 0.29 μM. This compound is utilized in cancer research.

PBRM1-BD2-IN-2, a selective and cell-active inhibitor of the polybromo-1 (PBRM1) bromodomain, exhibits binding affinity and inhibitory activity specifically targeting the PBRM1-BD2 domain, with Kd and IC50 values of 9.3 μM and 1.0 μM, respectively. This compound is utilized in cancer research.

mTOR HDAC-IN-1 (Compound 50) is a dual inhibitor of mTOR and HDAC, with IC50 values of 0.49 nM and 0.91 nM, respectively, holding potential as an anti-cancer agent [1].

MCT1-IN-3 is a monocarboxylate transporter 1 (MCT1) inhibitor, targeting solute carrier (SLC) monocarboxylate transporter 1 (MCT1; SLC16A1) for cancer treatment. MCT1-IN-3 (compound 24) showed the highest MCT1 transport inhibition with an IC50 value of 81.0 Nm and also exhibits significant inhibitory activity against the multidrug transporter ABCB1.

TCIP 1 is a small molecule in the category of transcriptional epigenetic covalent inhibitor probes (TCIPs) that forms covalent bonds with molecules targeting BCL6 and BRD4. This compound facilitates cell death gene expression by directing endogenous cancer drivers or transcription factors to the promoters of these genes. Additionally, TCIP 1 exhibits a gain-of-function mechanism, displaying both cell and tissue specificity, and it establishes a ternary complex with BCL6 and BRD4. It counteracts BCL6's inhibitory effect on apoptosis gene expression, leading to the activation of apoptosis. Furthermore, TCIP 1 markedly suppresses MYC oncogene expression and curtails the proliferation of diffuse large B-cell lymphoma (DLBCL) [1].

E3 ligase Ligand 18 is a compound that binds to E3 ubiquitin ligase and can be chemically linked to a protein ligand via a linker to form PROTACs, which induce ubiquitination-mediated degradation of cancer-promoting proteins [1].

LAG-3biner 1 (compound 3) is a small molecule ligand for the immune checkpoint Lymphocyte Activation Gene 3 (LAG-3), with a dissociation constant (Kd) of 1.23 μM. It is used in research for targeting LAG-3 in cancer diagnostics.

MEK RAF-IN-1 (Compound 16b) serves as an inhibitor targeting both MEK and RAF, demonstrating potent efficacy with IC 50 values reported at 28 nM for MEK1, and 3 nM for both BRAF and BRAFV600E. This compound exhibits significant antitumor capabilities, effectively curbing cell proliferation in vitro in MIA PaCa-2 (G12C KRAS), HCT116 (G13D KRAS), and C26 (G12D KRAS) cells. Furthermore, MEK RAF-IN-1 significantly restricts tumor growth in xenograft mouse models employed in the study of colorectal cancer.

Nic-15 (compound 4n) serves as an anti-constrictive agent targeting the low vascular characteristics of pancreatic tumors. These characteristics enable cancer cells to adapt to the nutrient-deficient tumor microenvironment and develop resistance to treatment. Nic-15 modulates the PI3K Akt mTOR pathway and alleviates ER stress induced by Gemcitabine. It significantly inhibits migration and colony formation in MIA PaCa-2 and PANC-1 pancreatic cancer cells. When used in combination with Gemcitabine, Nic-15 effectively addresses resistance issues in pancreatic tumors. In xenograft models in vivo, Nic-15 notably enhances the efficacy of Gemcitabine.

SD-7300 (SC-81490) functions as an orally active inhibitor targeting MMP-2, MMP-9, and MMP-13, exhibiting potent inhibition with K_i values of 0.03, 0.01, and 0.03 nM, respectively. By inhibiting these metalloproteinases, SD-7300 effectively reduces extracellular matrix degradation by tumor cells, thereby curbing their invasion and metastasis. Additionally, this compound acts as a dose-dependent inhibitor of mouse corneal angiogenesis and prevents interleukin-1-induced degradation of bovine cartilage. SD-7300 is applicable in the study of breast cancer.

PARP1-IN-29 is an orally active PARP-1 inhibitor with an IC50 of 6.3 nM. When labeled with [18F], PARP1-IN-29 can be utilized for positron emission tomography (PET) imaging, specifically targeting PARP-1 in tumors. This compound is useful in oncology and imaging studies, particularly for detecting PARP-1 activity in cancer.

ATG12-IN-1 (compound 4) acts as an autophagy inhibitor targeting the ATG12-ATG3 protein-protein interaction (IC50= 9 μM), suitable for research in cancer studies.

DNMT1 HDAC-IN-1 (compound (R)-23a), a potent dual inhibitor targeting both DNMT1 and HDAC, exhibits impressive inhibitory effects specifically on HDAC1 (HDAC1:IC50=0.05 μM), a major HDAC isoform that interacts with DNMT1 across multiple protein complexes involved in the transcriptional silencing of TSGs. This compound has been shown to remodel the tumor immune microenvironment and induce tumor regression, effectively reversing cancer-specific epigenetic abnormalities.

PD-1 PD-L1-IN-53 (compound B3) serves as an inhibitor targeting both the PD-1 PD-L1 and VISTA signaling pathways. It is utilized in cancer research.

TOPOI PARP-1-IN-2 (compound 6c) serves as a dual inhibitor targeting both PARP-1 and topoisomerase 1 (TOPO-1), with IC50 values of 32.2 nM and 46.2 nM, respectively. This compound exhibits greater selectivity for PARP-1 over PARP-2. Additionally, TOPOI PARP-1-IN-2 disrupts the S phase of the cell cycle and induces apoptosis in the NCI-60 cancer cell lines.

TRPM7-IN-1 (compound SUD) is a benzamide-urea derivative and an effective inhibitor of TRPM7. This compound induces cell cycle arrest and apoptosis in MCF-7 and BGC-823 cells, reducing their migration capabilities. It decreases vimentin expression while increasing E-cadherin expression. TRPM7-IN-1 reduces TRPM7-like currents and inhibits TRPM7 expression by activating the PI3K Akt signaling pathway. This compound shows potential as a therapeutic agent for reducing breast and gastric cancer metastasis by targeting TRPM7 expression and activity.

(Rac)-Glutipyran is a broad-spectrum GLUT inhibitor targeting both GLUT1 and GLUT3. This compound inhibits glucose uptake and significantly impedes the growth of various cancer cells, particularly demonstrating substantial inhibition of PANC-1 cell growth (IC50=1.8 μM) and glucose uptake (IC50=0.13 μM).

YT 6-2 analog-1 (compound 2-3) serves as an autophagy-targeting ligand (ATL) aimed at p62 SQSTM1, useful in synthesizing the AUTOTAC degrader ATC-324 for the Androgen Receptor (AR). ATC-324 promotes the formation of AR p62 complexes, leading to the autophagic-lysosomal degradation of AR. It effectively reduces nuclear AR levels, downregulates the expression of AR and AR-v7 target genes, and can degrade common AR mutants found in prostate cancer (PCa).

pan-TEAD-IN-1 (Compound 3) is an orally active pan-inhibitor of TEAD, disrupting its interaction with coactivators YAP TAZ by targeting the palmitoylation site of TEAD. This inhibition leads to the downregulation of oncogene transcription, such as Ctgf and Cyr61, within the Hippo signaling pathway. Demonstrating outstanding efficacy, pan-TEAD-IN-1 has an IC50 of 0.36 nM for luciferase and 1.52 nM for H226 cells, along with favorable pharmacokinetic properties (AUC0–∞= 228.7 μg mL·min, T1 2= 183.9 min). The compound significantly inhibits tumor growth in xenograft models of TEAD-dependent cancers, indicating its potential for research in these cancer types.

SOS1-IN-17 (Compound 8d) is an orally active inhibitor targeting the SOS1-KRASG12C interaction, with an IC50 of 5.1 nM. It suppresses ERK phosphorylation in DLD-1 cells with an IC50 of 18 nM and demonstrates antiproliferative activity in KRASG12C-mutant Mia-Paca-2 cells, with an IC50 of 0.11 μM. In mouse models, SOS1-IN-17 shows antitumor efficacy against pancreatic cancer.

Autophagyinducer 6 (Compound 3) inhibits the production of ROS and RNS by targeting COX-1 (IC50=15.3 µM) and COX-2 (IC50=4.58 µM). It facilitates the formation of autophagosomes and induces autophagy (autopagy) as a cellular protection mechanism. Additionally, Autophagyinducer 6 triggers mild apoptosis (apoptosis) and suppresses the proliferation of cancer cell lines MC38, HCT116, and HCT29 with IC50 values of 9.5, 11.5, and 17.6 µM, respectively.

iHAC is an inhibitor-HSP90 anchoring chimera that covalently binds to the BRD4 ligand (+)-JQ-1, targeting HSP90 and thereby inhibiting cancer cell proliferation. This compound also triggers an anti-tumor immune response and is effective in suppressing the recurrence and metastasis of 4T1 breast cancer in mouse models.

TopoisomeraseI II inhibitor 8 (Compound Ru7) is a dual catalytic inhibitor of TopoisomeraseI II that induces DNA damage and activates PARP-1, leading to the activation of RIPK1, RIPK3, and MLKL, ultimately causing necroptosis. It shows significant anticancer activity by effectively targeting cancer cell nuclei and inducing cell death through necroptosis, offering substantial clinical potential in overcoming resistance in cancer treatment.