brca1

BRCA1-IN-2 is a cell membrane-crossing BRCA1 protein-protein interaction (PPI) inhibitor with antitumor activity that acts by disrupting the interaction of BRCA1 (BRCT)2 with proteins.

BRCA1-IN-1 is a novel small-molecule-like inhibitor of BRCA1 with an IC50 of 0.53 μM and a Ki of 0.71 μM.

Rucaparib (PF-01367338) is a PARP protein inhibitor (PARP-1 Ki=1.4 nM) and hexose hexose-6-phosphate dehydrogenase (H6PD) inhibitor with oral activity. Rucaparib exhibits antitumor activity, with activity against desmoplasia-resistant prostate cancer (CRPC).

Rucaparib monocamsylate (Rucaparib Camsylate) is a PARP inhibitor (PARP1,Ki of 1.4 nM). Rucaparib Camsylate also displays binding affinity to eight other PARP domains.

Rucaparib Phosphate (PF-01367338 phosphate) is an inhibitor of PARP (Ki: 1.4 nM for PARP1) that is used in clinical therapy to sensitize cancer cells to chemotherapy.

Talazoparib (LT-673) is a new-type PARP inhibitor (IC50: 0.58 nM), It similarly binds to PARP1/2 (Kis: 1.2/0.85 nM).

Bractoppin is a drug-like inhibitor of phosphopeptide recognition by the human BRCA1 tandem (t)BRCT domain (IC50 = 0.074 μM), which selectively inhibits substrate binding with nanomolar potency in vitro. Structure-activity exploration suggests that Bractoppin engages BRCA1 tBRCT residues recognizing pSer in the consensus motif, pSer-Pro-Thr-Phe, plus an abutting hydrophobic pocket that is distinct in structurally related BRCT domains, conferring selectivity.

The Anti-BRCA1 Antibody (BR64) is a mouse IgG1, κ chimeric antibody that specifically targets human BRCA1. The recommended isotype control for the Anti-BRCA1 Antibody (BR64) is the Mouse IgG1 kappa, Isotype Control.

Carboplatin (JM-8) is a cisplatin derivative, a DNA synthesis inhibitor. Carboplatin binds to DNA, inhibits replication and transcription, and induces cell death. Carboplatin has antitumor activity.

D-I03 is a selective RAD52 inhibitor with a Kd of 25.8 µM. It specifically inhibits RAD52-dependent single-chain annealing (SSA) and D-loop formation, with IC50 values of 5 µM and 8 µM, respectively. D-I03 also inhibits the growth of BRCA1 and BRCA2 deficient cells and prevents the formation of damage-induced RAD52 foci, but does not affect RAD51 foci induced by Cisplatin.

AB25583 is a small molecule inhibitor of Polθ helicase (Polθ-hel) with an IC50 of 6 nM. It selectively kills cells deficient in BRCA1/2 and synergizes with Olaparib in cancer cells harboring pathogenic BRCA1/2 mutations. AB25583 can be utilized in tumor research.

PARP1-IN-30 is a specific and effective PARP1 inhibitor with cytotoxic properties. It precisely inhibits PARP1 in tumor cells lacking breast cancer 1 protein (BRCA1) or BRCA2. PARP1-IN-30 holds potential for use in cancer research.

(rac)-Talazoparib ((rac)-BMN-673) (Compound 47) is an orally active inhibitor of PARP1/2, with Ki values of 1.2 nM and 0.87 nM, respectively. It inhibits cellular PARylation at an EC50 of 2.51 nM. This compound leads to the accumulation of DNA damage and suppresses the proliferation of BRCA1/2-mutated MX-1 and Capan-1 cells, with IC50 values of 0.3 nM and 5 nM, respectively. Additionally, (rac)-Talazoparib exhibits antitumor activity in mouse models.

Octamethylcyclotetrasiloxane promotes the growth of MCF-10A and MCF-10F cells under non-adherent conditions. It induces DNA damage upon prolonged high concentration exposure and inhibits the expression of DNA repair protein BRCA1. Additionally, octamethylcyclotetrasiloxane exhibits inherent estrogenic activity.

D-G23 is a selective RAD52 inhibitor. It disrupts RAD52-mediated DNA repair pathways and suppresses the growth of cancer cells deficient in BRCA1 and BRCA2. D-G23 shows promise for research into homologous recombination-related cancers caused by BRCA1/2 mutations, such as hereditary breast and ovarian cancers.

PARP-1/Proteasome-IN-1 (compound 42i) is a dual inhibitor of PARP-1 and the proteasome, demonstrating significant inhibitory effects on breast cancer. By downregulating the expression of BRCA1 and RAD51, it impairs homologous recombination repair and induces apoptosis (cellular death).

Dicycloplatin is an inducer of DNA damage. It activates doubly phosphorylated checkpoint kinase 2 (CHK2), breast cancer 1 (BRCA1), and triply phosphorylated p53 to induce DNA damage. Dicycloplatin can cause cell cycle arrest, inhibit proliferation, and trigger apoptosis in prostate cancer PC3 cells and lung cancer NCI/H446 cells. It is applicable for research in the field of cancer.

EXO1-IN-1 (Compound F684) is a potent and selective inhibitor of exonuclease 1 (EXO1) with an IC50 of 15.7 μM. It inhibits DNA end resection, promotes the accumulation of DNA double-strand breaks, and induces S-phase polyadenylation, thereby disrupting DNA repair pathways in homologous recombination-deficient (HRD) cancer cells. This selectivity effectively targets and kills tumor cells with homologous recombination gene defects, such as BRCA1/2 mutations. EXO1-IN-1 holds promise for researching cancers with homologous recombination deficiencies, including BRCA-related tumors.

PARP1-IN-39 is an inhibitor of PARP1, with an IC50 value of 0.22 nM. In human breast cancer cells, its IC50 is 1.57 nM. PARP1-IN-39 is applicable for studying cancers associated with DNA repair deficiencies, such as breast, ovarian, pancreatic, and prostate cancers, particularly those with BRCA1/2 mutations.

Theophylline-platinum(IV) prodrug-1 is a PARP-1 inhibitor. It enhances DNA damage, ROS generation, mitochondrial dysfunction, apoptosis, and S-phase arrest in SKOV3-BRCA1-KD cells while reducing invasion and metastasis. Additionally, it exhibits strong antitumor activity in SKOV3-BRCA1-KD xenograft tumor models. This compound is used for ovarian cancer research.

Phosphoramide mustard cyclohexanamine is the active metabolite of cyclophosphamide, an alkylating agent that cross-links DNA strands, organizes cell division and causes cell death, and has antitumor activity.

LCS-1 is a selective superoxide dismutase 1 (SOD1) inhibitor and pyridazin-3-one derivative that displays trypanocidal activity at high concentrations.LCS-1 inhibits superoxide dismutase 1 inducing ROS-dependent death and degrading PARP and BRCA1 in glioma cells.

SK-575 is a degradation agent targeting protein-hydrolyzed PARP1 chimera with anticancer and antitumor activity.SK-575 effectively inhibits the growth of cancer cells harboring BRCA1/2 mutations and selectively induces PARP1 degradation in cancer cells.

SC10914 is a highly potent PARP inhibitor (PARP1 IC50 = 7.87 nM) with potent anti-proliferative activity against human BRCA deficient tumor cells (MDA-MB-436, BRCA1 deficient, IC50 = 4.03 nM, Capan-1 BRCA2 deficient, IC50 = 11.66 nM) and PTEN deficient tumor cells (HGC-27,PTEN deficient, IC50 = 0.35 μM). SC10914 showed potent anti-tumor activity in BRCA1/2 mutant tumor models and better pharmacokinetics profile has the potential to be selected as the clinical candidate for the treatment of treatment of BRCA1/2 deficient cancers.