CS1 is a potent DNA Topo II α inhibitor. CS1 displays broad-spectrum in vitro antitumor effects, low toxicity in vivo and potential anti-multidrug resistance capabilities. CS1 leads to DNA damage, cell cycle arrest at G2/M phase and apoptosis[1].
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].
Idarubicin hydrochloride is an anthracycline antileukemic drug. It inhibits the topoisomerase II interfering with the replication of DNA and RNA transcription.
Topoisomerase I inhibitor 5 is an effective topoisomerase inhibitor with IC50 value of. Topoisomerase I inhibitor 5 can interfere with DNA and significantly inhibit the activity of Topoisomerase I. Topoisomerase I inhibitor 5 can arrest cell cycle at the G1 phase and induce MCF-7 cells apoptosis. Topoisomerase I inhibitor 5 has potency in reversing P-gp-mediated resistance to Adriamycin[1].
MC-GGFG-AM-(10Me-11F-Camptothecin) is a linker-payload conjugate used to synthesize ZW251. ZW251 an antibody-drug conjugate (ADC) targeting human GPC3. ZW251 consists of a humanized IgG1 antibody conjugated to a novel camptothecin-based topoisomerase 1 inhibitor, ZD06519, via a linker. The linker is the maleimide anchor and a glycyl glycyl phenylalanyl glycine (GGFG)-aminomethyl (AM) cleavable linker. ZW251 has high affinity with human and cynomolgus monkey GPC3. ZW251 displays rapid internalization in GPC3-expressing HCC cell lines, and bystander-mediated killing of GPC3 negative cancer cells[1].
CP-67804 is a quinolone derivative, is a topoisomerase II-targeted agent. CP-67804 effectively enhances DNA cleavage mediated by eukaryotic topoisomerase II. CP-67804 has potential as an antineoplastic agent[1].
(±)-Evodiamine, a quinazolinocarboline alkaloid, is a Top1 inhibitor. Evodiamine exhibits anti-inflammatory, antiobesity, and antitumor effects. (±)-Evodiamine inhibits the proliferation of a wide variety of tumor cells by inducing their apoptosis[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].
NH2-methylpropanamide-Exatecan TFA is a methylpropanamide-modified Exatecan (HY-13631), which is the common ADC Cytotoxin used in the synthesis of ADC. Exatecan is a DNA topoisomerase I inhibitor, with an IC50 of 2.2 μM (0.975 μg/mL), and can be used in cancer research[1].
Exatecan Mesylate is a water soluble topoisomerase I inhibitor, with an IC50 of 2.2 μM (0.975 μg/mL), and can be used in cancer research.
Datopotamab deruxtecan (DS-1062; Dato-DXd) is a trophoblast cell surface antigen 2 (TROP2)-directed antibody-drug conjugate (ADC). Datopotamab deruxtecan has a potent antitumor activity[1].
HDAC/Top-IN-1 is an orally active and pan HDAC/Top dual inhibitor with IC50s of 0.036 μM, 0.14 μM, 0.059 μM, 0.089 μM and 9.8 μM for HDAC1, HDAC2, HDAC3, HDAC6 and HDAC8. HDAC/Top-IN-1 efficiently induces apoptosis with S cell-cycle arrest in HEL cells. HDAC/Top-IN-1 has exhibits excellent in vivo antitumor efficacy[1].
Levofloxacin ((-)-Ofloxacin) sodium is an orally active antibiotic and is active against both Gram-positive and Gram-negative bacteria. Levofloxacin sodium inhibits the DNA gyrase and topoisomerase IV. Levofloxacin sodium can be used for chronic periodontitis, airway inflammation and BK Viremia research. Levofloxacin sodium shows anti-orthopoxvirus activity[1][2][3][4][5].
Intoplicine (RP 60475) dimesylate, an antitumor derivative in the 7H-benzo[e]pyrido[4,3-b]indole series, is a DNA topoisomerase I and II inhibitor. Intoplicine dimesylate strongly binds DNA (KA = 2 x 105 /M) and thereby increases the length of linear DNA[1][2].
Camptothecin-20(S)-O-propionate (Camptothecin-20-O-propionate) hydrate, the C20-propionate ester of CPT, is a highly effective anticancer agent. Camptothecin-20(S)-O-propionate hydrate is a topoisomerase-Ι inhibitor[1][2].
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].
Top1 inhibitor 1 (compound 28) is a potent human topoisomerase I (Top1) inhibitor with an IC50 value of 29 nM[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].
HSP90-IN-13 (compound 5k) is a highly potent HSP90 pan inhibitor with an IC50 value of 25.07 nM. HSP90-IN-13 has multi-target activity against EGFR, VEGFR-2 and Topoisomerase-2. HSP90-IN-13 causes cell cycle arrest at G2/M phase and induces apoptosis of MCF-7 cells through mitochondrial-mediated pathway[1].
Razoxane (ICRF 159) is an antiangiogenic topoisomerase II inhibitor, can be used for the research of renal cell carcinoma (RCC)[1].
Gimatecan (ST1481) is a potent topoisomerase I inhibitor. Gimatecan is an orally bioavailable camptothecin analogue with antitumor activity[1].
Cu(II)-Elesclomol is a Cu2+ complex of Elesclomol (HY-12040). Cu(II)-Elesclomol induces apoptosis, causes a G1 cell cycle block and induces DNA double strand breaks in K562 cells. Cu(II)-Elesclomol also weakly inhibits DNA topoisomerase I. Cu(II)-Elesclomol has anticancer activity[1].
β-Lapachone is a naturally occurring O-naphthoquinone, acts as a topoisomerase I inhibitor, and induces apoptosis by inhibiting cell cycle progression.
Chloroquinoxaline sulfonamide (Chloroquinoxaline), a structural analogue of sulfaquinoxaline, is a topoisomerase II alpha/beta poison. Chloroquinoxaline sulfonamide is used to control coccidiosis in poultry, rabbit, sheep, and cattle[1]. Antitumor activity[2].
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].
Topoisomerase II inhibitor 13 is a topoisomerase II (Topo II) inhibitor. Topoisomerase II inhibitor 13 shows antiproliferative activity against several cancer cells. Topoisomerase II inhibitor 13 induces cancer cells apoptosis[1].
Batracylin (NSC320846) is a potent DNA Topoisomerases I and DNA Topoisomerases II inhibitor. Batracylin shows cytotoxicity and antiproliferative activity. Batracylin induces DNA breaks[1].