breaks

LJI308 is a potent, and pan-RSK (p90 ribosomal S6 kinase) inhibitor with IC50 of 6 nM, 4 nM, and 13 nM for RSK1, RSK2, and RSK3, respectively.

NSC 617145 (NSC617145) is an inhibitor of WRN helicase that inhibits the ATPase, but not exonuclease, activity of WRN helicase in a concentration-dependent manner.

Prexasertib (LY2606368) is a selective checkpoint kinase 1 (CHK1) inhibitor (Ki 0.9 nM, IC50<1 nM). Prexasertib causes double-stranded DNA breaks and replication mutations, leading to apoptosis. Prexasertib has antitumor activity.

Bleomycin sulfate is a glycopeptide antibiotic with antitumor activity. It is commonly used as a DNA-damaging agent and DNA synthesis inhibitor. It functions by inducing DNA strand breaks without affecting RNA strands. Bleomycin sulfate is widely used in cancer research and for establishing pulmonary fibrosis animal models.

Bleomycin hydrochloride is a glycopeptide antibiotic and a DNA synthesis inhibitor. Bleomycin Sulfate can cause DNA strand breaks but not RNA strand breaks. Bleomycin Sulfate has anti-tumor activity.

Lometrexol (LY 264618), an antipurine Antifolate, can inhibit the activity of glycinamide ribonucleotide formyltransferase (GARFT) but do not induce detectable levels of DNA strand breaks. Lometrexol can further inhibit de novo purine synthesis, causing abnormal cell proliferation and Apoptosis, even cell cycle arrest. Lometrexol has anticancer activity. Lometrexol also is a potent human Serine hydroxymethyltransferase1 2 (hSHMT1 2) inhibitor.

Thalicarpine is a natural aporphine benzylisoquinoline vinca alkaloid with antineoplastic activity. Thalicarpine binds to and inhibits p-glycoprotein, the multidrug resistance efflux pump. Thalicarpine also induces single-strand breaks in DNA and arrests cancer cells at the G2 M and G1 phase of the cell cycle. Check for active clinical trials or closed clinical trials using this agent.

Irinotecan Hydrochloride (CPT-11 hydrochloride) is the hydrochloride salt of a semisynthetic derivative of camptothecin. Irinotecan, a prodrug, is converted to a biologically active metabolite 7-ethyl-10-hydroxy-camptothecin (SN-38) by a carboxylesterase-converting enzyme. One thousand-fold more potent than its parent compound irinotecan, SN-38 inhibits topoisomerase I activity by stabilizing the cleavable complex between topoisomerase I and DNA, resulting in DNA breaks that inhibit DNA replication and trigger apoptotic cell death. Because ongoing DNA synthesis is necessary for irinotecan to exert its cytotoxic effects, it is classified as an S-phase-specific agent.

Tinidazole (CP12574)a is a 5-nitroimidazole derivative with the antiprotozoal property. Although the mechanism of action has not been fully elucidated, it has been suggested that tinidazole is metabolized and yields nitrite anions and metronidazole. Metronidazole's nitro group, in turn, is reduced via the parasite ferredoxin, thereby generating a series of free nitro radicals including nitro anions. Toxicity is achieved via depletion of sulfhydryl groups and DNA strand breaks with multiple hits having an additive effect and ultimately leading to cell death.

Busulfan is an alkylating antineoplastic agent derived from dimethane sulfonate, with cytotoxic and immunosuppressive properties. It primarily acts by forming carbonium ions in vivo, which induce cross-linking between DNA strands or between DNA and proteins, leading to DNA damage, inhibition of DNA replication, and suppression of RNA transcription. In addition, Busulfan can inhibit thioredoxin reductase and induce apoptosis. It is commonly used as a myeloablative agent in preconditioning regimens for bone marrow transplantation and can also be used to establish anemia models.

Methoxyamine HCl (Methoxyamine) covalently binds to apurinic/apyrimidinic (AP) DNA damage sites and inhibits base excision repair (BER), which may result in an increase in DNA strand breaks and apoptosis. Methoxyamine is an orally bioavailable small molecule inhibitor with potential adjuvant activity. This agent may potentiate the anti-tumor activity of alkylating agents.

Nerolidol (Peruviol) shows sedative effects in animals, oxidative process plays a crucial role on neuronal pathological consequence. Nerolidol is mainly related to ROS and DNA single strand breaks generated by the presence of oxidative lesions.

Thymidine-5'-monophosphate disodium salt (TMP DISODIUM SALT) is found in DNA. In mammalian cells, thymidine deprivation induces chromosome aberrations such as chromatid breaks, chromatid interchanges, and chromosome fragmentation.

Increased levels of erucic acid (22:1n9) have been found in the red blood cell membranes of autistic subjects with developmental regression (PMID: 16581239 ). Erucic acid (13(Z)-Docosenoic Acid) is broken down long-chain acyl-coenzyme A (CoA) dehydrogenase, which is produced in the liver. This enzyme breaks this long chain fatty acid into shorter-chain fatty acids. human infants have relatively low amounts of this enzyme and because of this, babies should not be given foods high in erucic acid. Erucic acid is found to be associated with isovaleric acidemia, which is an inborn error of metabolism.

Irinotecan (CPT-11), a derivative of camptothecin, is an inhibitor of DNA topoisomerase I (Topo I). Irinotecan has antitumor activity by preventing DNA strand reattachment through binding to the Topo I complex, resulting in double-stranded DNA breaks and cell death.

Mitoxantrone (mitozantrone) is an anthracenedione antibiotic with antineoplastic activity. Mitoxantrone intercalates into and crosslinks DNA, thereby disrupting DNA and RNA replication. This agent also binds to topoisomerase II, resulting in DNA strand breaks and inhibition of DNA repair. Mitoxantrone is less cardiotoxic compared to doxorubicin.

Niraparib, also know as MK-4827, is an inhibitor of poly (ADP-ribose) polymerase (PARP) with potential antineoplastic activity. MK4827 inhibits PARP activity, enhancing the accumulation of DNA strand breaks and promoting genomic instability and apoptosis. The PARP family of proteins detect and repair single strand DNA breaks by the base-excision repair (BER) pathway.

COH29 (RNR Inhibitor COH29) is an orally available, aromatically substituted thiazole and human ribonucleotide reductase (RNR) inhibitor with potential antineoplastic activity. COH29 binds to the ligand-binding pocket of the RNR M2 subunit (hRRM2) near the C-terminal tail, decreasing the pool of deoxyribonucleotide triphosphates needed for DNA synthesis, leading to cell cycle arrest and growth inhibition. It may also inhibit the nuclear enzyme poly (ADP-ribose) polymerase (PARP) 1, preventing DNA repair, causing accumulation of DNA breaks, and inducing apoptosis.

Tirapazamine (Win59075) is a potent cytotoxic agent under hypoxic conditions, can induce apoptosis by inducing breaks in single and double-stranded DNA, as well as chromosomal breaks. The compound sensitizes cells to other ionizing radiation and other cytotoxic agents like cisplatin.

UNC-2170 (UNC2170 Maleate) is the methyl-lysine binding protein, 53BP1 ligand.

Calicheamicin (Calicheamicin γ1) is an antitumor antibiotic and is a DNA synthesis inhibitor. It also is a cytotoxic agent that causes double-strand DNA breaks.

Calicheamicin (GMP) refers to the GMP grade reagents of Calicheamicin. Calicheamicin (Calicheamicin γ1) is an antitumor antibiotic and is a DNA synthesis inhibitor. It also is a cytotoxic agent that causes double-strand DNA breaks.

Neocarzinostatin is an effective DNA-damaging, anti-tumor antibiotic. It recognizes double-stranded DNA bulge and induces DNA double strand breaks (DSBs). Neocarzinostatin leads to apoptosis. Neocarzinostatin has potential for EpCAM-positive cancer treatment.

RITA (NSC-652287)(NSC-652287) induced cross-links of both DNA-DNA and DNA-protein with no detectable DNA single-strand breaks. RITA, like nutlin-3, can disrupt the p53/Mdm2 interaction.