topo i

Simmitecan hydrochloride is a camptothecin derivative, a topoisomerase I inhibitor with anticancer activity, which can be used to study is solid tumors.

Ellagic acid (Gallogen), a thickened tetracyclic natural product, is a potent CK2 inhibitor (IC50=40 nM; Ki=20 nM) with ATP-competitive properties. Ellagic acid is an antioxidant and also possesses antiproliferative activity.

Irinotecan hydrochloride trihydrate (CPT-11 HCl Trihydrate) keeps DNA from unwinding by inhibiting topoisomerase 1.

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.

Camptothecin (CPT) belongs to the alkaloid group of natural products and is a specific DNA topoisomerase I (Topo I) inhibitor (IC50=679 nM) with specificity. Camptothecin has antitumor activity and induces apoptosis.

SN-38 (NK012) is the active metabolite of Irinotecan, a DNA topoisomerase I (Topo I) inhibitor, which inhibits DNA and RNA synthesis (IC50=0.077 1.3 μM). SN-38 has antitumor activity and induces autophagy.

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.

9-Hydroxycampothecin is a camptothecin derivative with anticancer activity.

Belotecan hydrochloride (CKD-602) is a synthetic water-soluble camptothecin derivative and topoisomerase I inhibitor with potential antitumor activity

(rac)-Exatecan Intermediate 1 is a camptothecin derivative, a potential topoisomerase I inhibitor, used in tumor research.

Exatecan Mesylate (DX8951f) is a DNA topoisomerase I inhibitor (IC50: 2.2 μM, 0.975 μg mL).

LMP744 hydrochloride (NSC-706744 hydrochloride) is a DNA intercalator and Topoisomerase I (Top1) inhibitor with antitumor activity. 

Topo I II-IN-1 (compound 7t) is an effective dual inhibitor of Topo I and Topo II. It exhibits significant cytotoxicity against the MCF-7 breast cancer cell line, with an IC50 value of 7.45 μM.

Topo I II-IN-2 (Compound 3g) is an inhibitor of both Topo I and Topo II. It exhibits inhibitory activity against NCI-H446 and NCI-H1048 cells with IC50 values of 1.30 μM and 1.42 μM, respectively. Topo I II-IN-2 induces mitochondrial apoptosis, disrupts mitochondrial function, and stimulates activity generation. Additionally, it inhibits the PI3K Akt mTOR pathway, effectively preventing the proliferation, invasion, and migration of small cell lung cancer (SCLC) cells in vitro.

Topo I COX-2-IN-1 (1H-30) is a potent Topo I COX-2 inhibitor with IC50 values of 0.24 μM for COX-2 and 4.42 μM for Topo I. It induces apoptosis and inhibits cancer cell migration, demonstrating anti-cancer activity.

Topo I-IN-1 (Compound 14d) is a potent Topo I inhibitor that exhibits antitumor activity, DNA intercalative capability, and can induce cell apoptosis.

Topo I COX-2-IN-2 (Compound W10) is a potent dual inhibitor of Topo I (IC50: 0.90 μM) and COX-2 (IC50: 2.31 μM), inducing apoptosis in cancer cells via the mitochondrial pathway.

DNA gyrase Topo IV-IN-1 (Compound 27) is an inhibitor of DNA gyrase and topoisomerase IV with antibacterial properties. It exhibits IC50 values of 11 and 17 nM against the DNA gyrase of Escherichia coli and methicillin-resistant Staphylococcus aureus, respectively, and IC50 values of 83 and 21 nM against topoisomerase IV of the same organisms. DNA gyrase Topo IV-IN-1 is applicable in anti-infective research.

Topo II HDAC-IN-1 (7d) demonstrates potent dual inhibitory effects on Topo II and HDAC, while Topo II HDAC-IN-1 (8d) effectively induces apoptosis [1].

Topo II HDAC-IN-2 (8d) demonstrates remarkable dual inhibitory effects on Topo II and HDAC, and also induces apoptosis [1].

Disulfiram (TETD) is an inhibitor of the acetaldehyde dehydrogenase ALDH, inhibiting hALDH1 and hALDH2 (IC50=0.15 1.45 μM) with specificity. Disulfiram is acutely sensitized to alcohol and also inhibits GSDMD pore formation.

Doxorubicin hydrochloride (Adriamycin) belongs to the anthracycline class of antibiotics and is an inhibitor of human DNA topoisomerase I II (IC50=0.8 2.67 μM). Doxorubicin hydrochloride exhibits cytotoxicity and antitumor activity. Doxorubicin hydrochloride reduces the phosphorylation of AMPK and its downstream target protein acetyl coenzyme A carboxylase, and induces apoptosis and autophagy.

Dxd (OQM5SD32BQ) is a potent inhibitor of DNA topoisomerase I with an IC50 of 0.31 μM. It is used as a conjugated drug of HER2-targeting ADC.

DRF-1042, an orally active camptothecin analog, exhibits anticancer and insecticidal activities by inhibiting DNA topoisomerase I. It has been studied for its efficacy against solid tumors, including prostate and colon cancers.