ICRF-193 is an TopoII inhibitor. (S,S)- and (R,R)-isomers ICRF-193 make up an racemic mixture, ICRF-196 (HY-118590A). ICRF-196 can be used for the research of cancer[1].
ARN24139(compound 3f) is a topoisomerase II (topoII) inhibitor with the IC50 of 7.3 μM. ARN24139 can inhibit cancer cell proliferation and is well tolerated in vivo[1].
Hippeastrine, an active alkaloid, exhibits a good dose-dependent inhibitory effect against topoisomerase I (Top I) with an IC50 at 7.25 μg/mL. Antiproliferative and anticancer activities[1].
Chimmitecan ((S)-9-Allyl-10-Hydroxycamptothecin), a novel 9-small-alkyl-substituted lipophilic Camptothecin (HY-16560), is a potent inhibitor of topoisomerase I. Chimmitecan exhibits anticancer activity[1].
Cholesteryl hemisuccinate is a with hepatoprotective an anticancer activity. Cholesteryl hemisuccinate inhibits Acetaminophen (AAP, HY-66005) hepatotoxicity, and prevents AAP-induced hepatic apoptosis and necrosis. Cholesteryl hemisuccinate inhibits DNA polymerase and DNA topoisomerase to inhibit DNA replication and repair and cell division. Thus, Cholesteryl hemisuccinate inhibits tumor growth[1][2].
(±)-10-Hydroxycamptothecin, an indole alkaloid isolated from Camptotheca acuminate, inhibits the activity of topoisomerase I and has a broad spectrum of anticancer activity.
Gly-Cyclopropane-Exatecan involves in the synthesis of anti-B7-H4 ADC, containing Exatecan (HY-13631), a DNA Topoisomerase I inhibitor. Gly-Cyclopropane-Exatecan participated in the formation of the ADC hu2F7-Exatecan (compound 34), which showed antitumor activity in vivo and in vitro[1].
Topoisomerase IIα-IN-2 (compound 5) is a potent DNA-binding ligands and topoisomerase IIα inhibitor. Topoisomerase IIα-IN-2 exhibits high antiproliferative activity against human cancer cell lines. Topoisomerase IIα-IN-2 significantly induces DNA damage and arrests cancer cells at G2/M phase[1].
Exatecan Intermediate 5 is the intermediate of Exatecan (HY-13631) And Exatecan (DX-8951) is a DNA topoisomerase I inhibitor with an IC50 value of 2.2 μM (0.975 μg/mL) that can be used in cancer research. Exatecan Intermediate 5 can be used to synthesize Antibody-Drug Conjugates (ADCs).
Becatecarin is a rebeccamycin analog with antitumor effects. Becatecarin intercalates into DNA and inhibites the catalytic activity of topoisomerases I/II.
EGFR-IN-57 (Compound 25a) is a potent, orally active EGFR-TK inhibitor with an IC50 of 0.054 µM. EGFR-IN-57 also inhibits VEGFR-2, CK2α, topoisomerase IIβ and tubulin polymerization with IC50 values of 0.087, 0.171, 0.13 and 3.61 µM, respectively. EGFR-IN-57 induces cell cycle arrest at G2/M and pre-G1 phases. EGFR-IN-57 induces cancer cell apoptosis[1].
CL2-MMT-SN38 is a SN-38 derivative. SN-38, an anticancer agent, is an active metabolite of the Topoisomerase I inhibitor Irinotecan (CPT-11)[1].
Artemisitene, a natural derivative of Artemisinin, is a Nrf2 activator with antioxidant and anticancer activities. Artemisitene activates Nrf2 by decreasing Nrf2 ubiquitination and increasing its stability[1][2].
Irinotecan-d10 ((+)-Irinotecan-d10) hydrochloride is the deuterium labeled Irinotecan. Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex[1][2].
Topoisomerase II inhibitor 14 (compound 2f) is a potent inhibtor of Topoisomerase II, with anticancer activity. Topoisomerase II inhibitor 14 induces apoptosis, and arrests cell cycle at S phase. Topoisomerase II inhibitor 14 exhibits antioxidant effect and decreases the level of GSH, MDA, and NO[1].
Guajadial C is a Top1 catalytic inhibitor that delays Top1 poison-mediated DNA damage. Guajadial C shows cytotoxicity against cancer cells[1].
Topoisomerase II inhibitor 15 (compound 2g) is a Topoisomerase II inhibitor. Topoisomerase II inhibitor 15 potently is an apoptotic inducer with greater selectivity against head and neck tumors[1].
Nalidixic acid sodium salt, a quinolone antibiotic, is effective against both gram-positive and gram-negative bacteria. Nalidixic acid acts in a bacteriostatic manner in lower concentrations and is bactericidal in higher concentrations. Nalidixic acid inhibits a subunit of DNA gyrase and topoisomerase IV and reversibly blocks DNA replication in susceptible bacteria[1][2].
Heliquinomycin is an inhibitor of DNA helicase (Ki: 6.8 μM) and inhibits DNA and RNA synthesis. Heliquinomycin is effective against Gram-positive bacteria strains. Heliquinomycin inhibits cancer cell growth[1][2].
Campathecin is a potent DNA enzyme topoisomerase I inhibitor, with an IC50 of 679 nM.
Bimolane (AT-1727), a human topoisomerase II inhibitor, can be used as an anti-neoplastic agent and for the research of psoriasis. Bimolane shows leukemogenic activity and induces multiple types of chromosomal aberrations in human lymphocytes[1][2].
Gatifloxacin sesquihydrate (AM-1155; BMS-206584; PD135432) is a potent fluoroquinolone antibiotic with broad-spectrum antibacterial activity. Gatifloxacin sesquihydrate inhibits bacterial type II topoisomerases (IC50=13.8 μg/ml for S. aureus topoisomerase IV) and E. coli DNA gyrase (IC50 = 0.109 μg/ml)[1]. Gatifloxacin sesquihydrate can be used to treat bacterial conjunctivitis in vivo.
Diflomotecan (BN 80915) is a potent inhibitor of topoisomerase I. Diflomotecan causes enhanced plasma stability and has the superior preclinical anti-tumour activity compared with other established compounds[1].
Etoposide phosphate (BMY-40481) is a potent anti-cancer chemotherapy agent and a selective topoisomerase II inhibitor to prevent re-ligation of DNA strands. Etoposide phosphate is the phosphate ester prodrug of etoposide and is considered as active equivalent to Etoposide. Etoposide phosphate induces cell cycle arrest, apoptosis, and autophagy[1][2].
Aurintricarboxylic acid is a nanomolar-potency, allosteric antagonist with selectivity towards αβ-methylene-ATP-sensitive P2X1Rs and P2X3Rs, with IC50s of 8.6 nM and 72.9 nM for rP2X1R and rP2X3R, respectively[1]. Aurintricarboxylic acid is a potent anti-influenza agent by directly inhibiting the neuraminidase[2]. Aurintricarboxylic acid is an inhibitor of topoisomerase II and apoptosis[3]. Aurintricarboxylic acid is a selective inhibitor of the TWEAK-Fn14 signaling pathway[4].
Elomotecan (hydrochloride) is a potent inhibitor of topoisomerases I and II. Elomotecan (hydrochloride) is a camptothecin analog belonging to the homocamptothecin family (hCPT). Elomotecan (hydrochloride) reduces the proliferation of different tumor cells with higher potency than other anticancer drugs of reference targeting topoisomerases I or II[1].
Irinotecan-d10 ((+)-Irinotecan-d10) is a deuterium labeled Irinotecan ((+)-Irinotecan). Irinotecan ((+)-Irinotecan) is a topoisomerase I inhibitor, preventing religation of the DNA strand by binding to topoisomerase I-DNA complex[1].
Betulinic acid is a natural pentacyclic triterpenoid, acts as a eukaryotic topoisomerase I inhibitor, with an IC50 of 5 μM, and possesses anti-HIV, anti-malarial, anti-inflammatory and anti-tumor properties.
RPR121056 (APC) is a metabolite of Irinotecan (CPT-11), which is generated by CYP3A4. Irinotecan (CPT-11) is an antineoplastic agent that inhibits topoisomerase type I, causing cell death, and is widely used in the treatment of colorectal cancer. Irinotecan also directly inhibits AChE[1].
AZD5099, an antibacterial agent, is a potent and selective bacterial topoisomerase II inhibitor. AZD5099 potently inhibits the infections caused by Gram-positive and fastidious Gram-negative bacteria[1].