PARP

TH5427 hydrochloride is a NUDT5 inhibitor with a human target IC₅₀ of 29 nM, ~690-fold selectivity over MTH1 in vitro, and selective functional inhibition over other NUDIX hydrolases including NUDT9.TH5427 hydrochloride binds to the active site of NUDT5, blocking enzymatic activity related to ADP-ribose metabolism and PAR-derived ATP synthesis.TH5427 hydrochloride blocks progestin-dependent nuclear ATP synthesis, impairs progestin-induced chromatin remodeling, inhibits histone H1 displacement, disrupts progestin-dependent gene regulation, and abrogates progestin-dependent proliferation in breast cancer cells.TH5427 hydrochloride functions as a versatile probe to study nuclear ATP dynamics and ADP-ribose-related metabolism in cells.TH5427 hydrochloride engages NUDT5 at physiological temperatures, as demonstrated by Drug Affinity Responsive Target Stability (DARTS) assay.TH5427 hydrochloride stabilizes NUDT5 against thermal denaturation in cell lysates and intact cells, as shown by cellular thermal shift assay (CETSA).TH5427 hydrochloride functionally inhibits NUDT5 activity, leading to downstream effects on oxidative DNA damage and DNA replication in triple-negative breast cancer (TNBC) cells.TH5427 hydrochloride suppresses proliferation of TNBC cells without inducing cell death or apoptosis, slows DNA replication in TNBC cells, promotes accumulation of oxidative DNA lesions, and triggers DNA damage response in TNBC cells.TH5427 hydrochloride suppresses growth of TNBC cells in vitro, inhibits growth of TNBC xenograft tumors in nude mice in vivo, and shows greater potency against TNBC cell lines compared to ER-positive and normal-like breast cell lines.TH5427 hydrochloride can be used for the research of breast cancer and triple-negative breast cancer.

Rucaparib-d₃ (AG014699-d₃) is the deuterated -labeled Rucaparib (HY-10617A). Rucaparib (AG014699) is an orally active, potent inhibitor of PARP proteins (PARP-1, PARP-2 and PARP-3) with a K_i of 1.4 nM for PARP1. Rucaparib is a modest hexose-6-phosphate dehydrogenase (H6PD) inhibitor. Rucaparib has the potential for castration-resistant prostate cancer (CRPC) research.

PARP1/c-Met-IN-1 (Compound 16) is a selective dual inhibitor for PARP1 and c-Met, with IC₅₀s of 3.3 and 32.2 nM, respectively. PARP1/c-Met-IN-1 induces cell apoptosis and cell cycle arrest in G2/M phase in MDA-MB-231 cells. PARP1/c-Met-IN-1 exhibits antitumor activity in mice.

Castalagin is an orally active natural product with multiple biological activities including antibacterial activity against bacteria and anti-leishmanial activity against Leishmania aethiopica. Castalagin exhibits inhibitory activity against PARP1 and DNA topoisomerase II, with an IC₅₀ of 0.86 μM for bovine PARP1. Castalagin reduces poly (ADP-ribosyl) ation modification in cells. Castalagin binds to the cell envelope of Ruminococcus bromii, increases the ratio of CD8⁺/FOXP3⁺CD4⁺ T cells in the tumor microenvironment, and acts as a prebiotic to enhance the activity of anti-PD-1 therapy. Castalagin induces morphological changes in Leishmania aethiopica promastigotes and inhibits their proliferation. Castalagin inhibits PBP2a-mediated peptidoglycan layer stabilization, disrupts bacterial peptidoglycan assembly, and inhibits and disintegrates bacterial biofilms. Castalagin can be used in research related to diseases such as cancer, leishmaniasis, and bacterial infections.

EGFR/PARP-1-IN-1 is a dual EGFR and PARP-1 inhibitor with IC₅₀ values of 64 nM and 12 nM, respectively. EGFR/PARP-1-IN-1 binds to the ATP-binding pocket of EGFR and interacts with the catalytic domain of PARP-1, inhibiting kinase and enzymatic activity via hydrogen bond formation with key residues in both targets. EGFR/PARP-1-IN-1 induces apoptosis through the endogenous mitochondrial pathway, arrests the cell cycle at the G2 phase, and inhibits cell proliferation. EGFR/PARP-1-IN-1 can be used for research on triple-negative breast cancer.

S-Petasin is a phosphodiesterase (PDE) inhibitor with IC₅₀ values of 25.5 μM and 17.5 μM for PDE3 and PDE4, respectively. S-Petasin inhibits cholesterol side-chain cleavage enzyme, 11β-hydroxylase, PPAR-γ, and iNOS induction at RNA and protein levels. S-Petasin induces apoptosis, activates caspases, cleaves PARP, modulates mitochondrial membrane permeability, and regulates BCL2/BAX, p53, Bcl-XL, MMP-2, MMP-9, p21, CDK4, and cyclin D1 expression. S-Petasin reduces inflammatory cell accumulation, cytokine and IgE levels, and enhances serum IgG2a levels. S-Petasin relaxes isolated sensitized guinea pig trachealis and exhibits gastrointestinal anti-spasmodic activity. S-Petasin reduces tonsillitis severity and asthmatic attack frequency. S-Petasin can be used for the research of prostate cancer, obesity, melanoma, allergic asthma, asthma, and peritonitis.

PARP1/ERK IN-1 is a dual PARP1/ERK inhibitor, with a PARP1 IC₅₀ of 0.9 nM and an ERK2 IC₅₀ of 1.8 nM. PARP1/ERK IN-1 inhibits proliferation and migration of various cancer cell lines, and induces apoptosis and DNA damage. PARP1/ERK IN-1 suppresses tumor growth in mouse models of colorectal cancer, and reduces the expression of Ki‑67, BRCA1 and Rad51. PARP1/ERK IN-1 can be used in the research of colorectal cancer, triple-negative breast cancer and pancreatic cancer.

PIM-1/HDAC-IN-2 is a robust PIM/HDAC inhibitor (IC₅₀ = 0.11 μM in MV4-11cells), which exerts a synergistic antiproliferative effect through a dual mechanism of inhibiting PIM1 kinase and selectively inhibiting HDAC6. PIM-1/HDAC-IN-2 induces cell apoptosis. PIM-1/HDAC-IN-2 remarkably induces the cleavage of PARP, thereby initiating the arrest of the cell cycle in G1 phase and a reduction in S phase. PIM-1/HDAC-IN-2 demonstrates significant anticancer efficacyin the MV4-11 xenograft model without notable toxicity^[1]_.

Tubulin/PARP1-IN-1 is a dual inhibitor of tubulin and PARP1, with IC₅₀ values of 1.86 μM and 0.88 μM, respectively. Tubulin/PARP1-IN-1 arrests cancer cells at the G₂/M phase, induces cancer cell apoptosis, enhances cellular DNA damage, inhibits tumor angiogenesis, reduces cancer cell colonization and dissemination, and exhibits antiproliferative activity against colorectal cancer cells. Tubulin/PARP1-IN-1 can be used in the research of colorectal cancer and colorectal cancer lung metastasis.

5-AIQ hydrochloride is a PARP-1 inhibitor. 5-AIQ hydrochloride is an important functional group in various drugs. 5-AIQ hydrochloride reduces the tissue injury associated with ischemia-reperfusion of the liver, it can be used for the research of the research conditions associated with ischemia-reperfusion of the liver.

PARP1-IN-22 (compound 15) is a potent inhibitor of PARP1, with the IC₅₀ of ＜ 10 nM.

A-620223 succinate (ABT-472) is an orally available poly(ADP-ribose) polymerase (PARP) inhibitor. A-620223 succinate (ABT-472) exhibits very good potency against the PARP-1 enzyme with a K_i value of 8 nM and an EC₅₀ value of 3 nM in whole cell assay, making it useful in cancer research.

PARP1-IN-10 (compound 12c) is a no-cytotoxicity and potent PARP1 inhibitor with an IC₅₀ value of 50.62 nM in vitro. PARP1-IN-10 causes cell cycle arrest at G2/M phase and apoptosis, and enhances the cytotoxicity of temozolomide (TMZ) .

SK-575-NEG (compound 28), a methylation counterpart of SK-575, is synthesized by methylation of the amino group of piperidine-2,6-dione in SK-575 as an control compound. SK-575-NEG is strongly bound to PARP1, with an IC₅₀ of 2.64 nM. SK-575-NEG was completely ineffective in inducing PARP1 degradation in MDA-MB-436 and Capan-1 cells at concentrations up to 1 μM.

PARP1-IN-55 is a potent and selective PARP1 inhibitor with an IC₅₀ value of 0.019 μM. PARP1-IN-55 exhibits anti-proliferative selective activity against MCF-7 breast cancer cells (IC₅₀ = 3.6 μM). PARP1-IN-55 inhibits the PARP1-mediated DNA damage repair pathway, induces ROS accumulation, disrupts mitochondrial membrane potential, induced apoptosis and suppresses cancer cell migration, invasion, and colony formation. PARP1-IN-55 can be used for the study of breast cancer.

PARP14 inhibitor 2 (Compound 3) is an orally active and highly selective PARP14 inhibitor with an IC₅₀ value of <30 nM. PARP14 inhibitor 2 inhibits the mono-ADP-ribosyltransferase activity of PARP14 and regulates IFN-γ and IL-4 signaling, reversing protumor macrophage polarization and inhibiting anti-tumor inflammatory responses. PARP14 inhibitor 2 is promising for research of PARP14-related diseases such as tumors, atopic dermatitis and autoimmune diseases.

VS1150 (Compound 11) is a BCR-ABL-targeting phosphorylation-inducing chimeric small molecule (PHICS). VS1150 significantly inhibits oncogenic kinase BCR-ABL signaling by inducing inhibitory phosphorylation at its Y253 (EC₅₀: 69 nM), subsequently triggering cell apoptosis. VS1150 also inhibits other oncogenic ABL fusions and drug-resistant mutants like T315I. VS1150 can be used for chronic myeloid leukemia (CML) and other ABL fusion-driven cancers research.

PARP1-IN-36 (compound 11) is a 4-carboxamido-isoindolinone derivative and a selective PARP-1 inhibitor with a K_d < 0.01 μM. PARP1-IN-36 can be utilized in cancer, cardiovascular diseases, nervous system injury and inflammation research.

Cyproheptadine hydrochloride-d₃ (Cyproheptadine HCl-d₃) is the d₃-labeled Cyproheptadine (hydrochloride) (HY-B0366A). Cyproheptadine hydrochloride (Cyproheptadine HCl) acts as a p38 MAP kinase activator, CHK2 activator, histamine H1 receptor inhibitor and serotonin receptor inhibitor. Cyproheptadine hydrochloride mediates cell cycle arrest via G1 phase arrest, G1/S transition arrest, G0/G1 phase arrest, reduced expression of cyclins D1/D2/D3, upregulated expression of HBP1, p16, p21, p27, and decreased phosphorylation of retinoblastoma protein. Cyproheptadine hydrochloride induces Apoptosis by increasing PARP and cleaved PARP, as well as activating the mitochondrial caspase pathway. Cyproheptadine hydrochloride inhibits tumor growth with extremely low toxicity to normal cells. Cyproheptadine hydrochloride can be used in research related to hepatocellular carcinoma, multiple myeloma and acute myeloid leukemia.

Fucosterol (Standard) is the analytical standard of Fucosterol. This product is intended for research and analytical applications. Fucosterol is a sterol isolated from algae, seaweed or diatoms. Fucosterol exhibits various biological activities, including antioxidant, anti-adipogenic, blood cholesterol reducing, anti-diabetic and anti-cancer activities. Fucosterol regulates adipogenesis via inhibition of PPARα and C/EBPα expression and can be used for anti-obesity agents development research.