Vinblastine sulfate is a cytotoxic alkaloid used against various cancer types. Vinblastine sulfate inhibits the formation of microtubule and suppresses nAChR with an IC50 of 8.9 μM.
ER degrader 7 (Compound 35t) is an ERα and ERβ degrader. ER degrader 7 inhibits tubulin polymerization. ER degrader 7 inhibits cell viability with IC50s of 0.06, 2.56, 15.84, 1.59, 1.67, 1.37 μM for MCF-7, T47D, MCF-10A, LCC2, T47D D538G, and T47D Y537S cells respectively. ER degrader 7 also inhibits breast cancer tumor growth[1].
Curvulin, isolated from Curvularia lunata, is a phytotoxin[1]. Curvularin is reported to inhibit microtubule assembly and has also been shown to inhibit iNOS expression.
Dolastatin 10 is a potent antimitotic peptide, isolated from the marine mollusk Dolabela auricularia, that inhibits tubulin polymerization.
Epothilone F is a Microtubule/Tubulin-stabilizing agent with anti-tumor activity. Epothilone F inhibits the proliferation of breast cancer cells, non-small cell lung cancer cells, drug-resistant ovarian cancer cells[1].
2-Methoxyestradiol is an angiogenesis inhibitor and apoptosis inducer with potent antineoplastic activity. 2-Methoxyestradiol also destablize microtubules.
MMAF (Monomethylauristatin F) is an antitubulin agent that inhibit cell division; inhibits H3397 cell growth with an IC50 of 105 nM.
Tubulin polymerization-IN-28 (compound-4) is a microtubule protein polymerization inhibitor with highly selective anticancer activity. Tubulin polymerization-IN-28 can be activated by NQO1 and effectively release combretastatin A-4 to kill tumor cells. Tubulin polymerization-IN-28 can induce cell apoptosis and be used in anti-cancer research[1].
TPI-287, a blood-brain barrier-permeable microtubule stabilizer, can significantly reduce metastatic colonization of breast cancer in the brain[1].
THK-5117, an arylquinoline derivative, displays high binding affinity to tau fibrils with a Ki of 10.5 nM. THK-5117 has high binding affinity to tau protein aggregates and tau-rich Alzheimer disease (AD) brain homogenates. 18F-THK-5117 has the potential to act as a tau imaging PET probe[1].
Vinflunine ditartrate is the first fluorinated microtubule inhibitor belonging to the Vinca alkaloids family. Vinflunine ditartrate has anti-angiogenic, vascular-disrupting and anti-metastatic activities. Vinflunine ditartrate can be used for the research of transitional cell carcinoma of the urothelial tract, non-small cell lung cancer, and carcinoma of the breast[1][2].
EAPB 02303 is a microtubule-disrupting agent and inhibitor. EAPB 02303 induces mitosis arrest and impairment of spindle assembly. Thus, EAPB 02303 induces apoptosis and exhibits antitumor activity. EAPB 02303 also exhibits a potent synergy with Paclitaxel (HY-B0015) at lower concentrations[1].
Taltobulin (HTI-286; SPA-110) is an analogue of Hemiasterlin; potent tubulin inhibitor; ADCs cytotoxin.IC50 value:Target: tubulinin vitro: HTI-286 significantly inhibited proliferation of all three hepatic tumor cell lines (mean IC50 = 2 nmol/L +/- 1 nmol/L) in vitro. Interestingly, no decrease in viable primary human hepatocytes (PHH) was detected under HTI-286 exposure [1]. In all cell lines tested, HTI-286 was a potent inhibitor of proliferation and induced marked increases in apoptosis. Despite similar transcriptomic changes regarding cell death and cell cycle regulating genes after exposure to HTI-286 or docetaxel, array analysis revealed distinct molecular signatures for both compounds [2].in vivo: Intravenous administration of HTI-286 significantly inhibited tumor growth in vivo (rat allograft model) [1]. HTI-286 significantly inhibited growth of PC-3 and LNCaP xenografts and retained potency in PC-3dR tumors. Simultaneous castration plus HTI-286 therapy was superior to sequential treatment in the LNCaP model [2].
Auristatin E is a cytotoxic tubulin modifier with potent and selective antitumor activity; MMAE analog and cytotoxin in Antibody-drug conjugates.
Tilavonemab (ABBV-8E12) is a humanised anti-tau antibody that binds amino acids 25-30 near the N-terminal end of the tau protein. Tilavonemab blocks the ability of human and mouse neurons to take up tau aggregates and reduces brain atrophy. Tilavonemab can be used in the study of Alzheimer's disease[1].
Vincristine (Leurocristine) is a microtubule-destabilizing agent (MDA). Vincristine (Leurocristine) binds to tubulin and inhibits the formation of microtubules, thereby inhibiting mitosis of the cancer cell. Vincristine (Leurocristine) is used to treat hematologic cancers, such as leukemia and lymphoma, and childhood sarcomas[1][2].
Thiocolchicine, a derivative modified in the C Ring of Colchicine (HY-16569) with enhanced biological properties. Thiocolchicine is a potent inhibitor of tubulin polymerization (IC50=2.5 µM) and competitively binds to tubulin with a Ki of 0.7 µM. Thiocolchicine induces cell apoptosis[1][2]. Thiocolchicine can be used as an ADC cytotoxin in ADC technology.
P34cdc2 Kinase Fragment is associated with the completion of DNA replication in yeast mitosis. P34cdc2 Kinase can phosphorylate mitogen-activated protein 2 (MAP2) to regulate microtubules polymerization in Xenopus oocytes meiosis[1][2].
Avanbulin (BAL27862) is a potent, Colchicine site-binding, tubulin assembly inhibitor. Avanbulin inhibits tubulin assembly at 37 °C with an IC50 of 1.4 μM. Avanbulin binds to tubulin with an apparent Kd value of 244 nM. Avanbulin can be used for the research of cancer and cell division[1][2][3][4].
Vinflunine Tartrat is a new vinca alkaloid uniquely fluorinated with the properties of mitotic-arresting and tubulin-interacting activity.Target: Microtubule/TubulinThe major effects of Vinflunine on dynamic instability are a slowing of the microtubule growth rate, an increase in growth duration, and a reduction in shortening duration. The effects of Vinflunine on the readmilling rate is examined by following [3H]GTP incorporation into MAP-rich microtubules, and the IC50 is 0.42 μM [1]. Vinflunine induced mitotic accumulation with IC50 with 18.8 nM, which decreases the centromere dynamicity by 44% and increases the time centromeres spent ina paused state by 63% [2]. Treatment of Vinflunine induces a rapid change in endothelial cell shape: cells retracts and assumes a rounded morphology. Mean IC50 values are 9.9 × 10-5 M × 10-5 M for fibronectin and 5.0× 10-5 M × 10-5 M for type IV collagen. A short 4 hours exposure of endothelial cells to Vinflunine at 10-8 0.05). An ID50 value (dose which inhibits 50% of bFGF-induced neovascularisation) is calculated as 1 mg/kg. Low doses of Vinflunine reduce the number of experimental liver metastases by human LS174T colon cancer cell. A slight overall decrease in liver metastatic foci is already observed at the very low dose of 0.16 mg/kg Vinflunine, although maximal overall inhibition is reached at the maximal tolerated dose (MTD) of 20 mg/kg [3].
Tubulysin D is one of the most potent derivatives among the tubulysins isolated from the myxobacterial species Archangium geophyra and Angiococcus disciformis. Tubulysin D is a novel tetrapeptide that displays potent antitumor activity and leads to cell cycle arrest and apoptosis by inhibiting tubulin polymerization with an IC50 of 1.7 μM[1]. Tubulysin displays extremely potent cytotoxic activity in mammalian cells, including multidrug-resistant cell lines, with IC50 values in the lower nanomolar range[2].
Taccalonolide B is microtubule stabilizer isolated from Tacca plantaginea, with antitumor activity. Taccalonolide B is effective in vitro against cell lines that overexpress P-glycoprotein (Pgp) and multidrug-resistance protein (MRP7). Taccalonolide B inhibits growth of SK-OV-3 cells with an IC50 of 208 nM[1][2].
Colcemid (Demecolcine), a derivative of colchicine, is a potent mitotic inhibitor[1][2]. Colcemid binds to the protein tubulin and arrest cells in metaphase for karyotyping assays. Colcemid incuces cell apoptosis and can be used for cancer research[2].
Indibulin (ZIO 301) , an orally applicable inhibitor of tubulin assembly, shows potent anticancer activity with a minimal neurotoxicity. Indibulin reduces inter-kinetochoric tension, produces aberrant spindles, activates mitotic checkpoint proteins Mad2 and BubR1, and induces mitotic arrest and apoptosis[1].
Podophyllotoxin is a potent inhibitor of microtubule assembly and DNA topoisomerase II.IC50 Value:Target: Topoisomerase II; Microtubule/TubulinPodophyllotoxin, a kind of non-alkaloid toxin lignan extracted from the roots and rhizomes of Podophyllum plant, has been shown to inhibit the growth of various carcinoma cells. Podophyllotoxin is a natural product that inhibits the polymerization of tubulin and has served as a prototype for the development of diverse antitumor agents in clinical use.
KIF18A-IN-2 is a potent KIF18A inhibitor (IC50=28 nM). KIF18A-IN-2 causes significant mitotic arrest and increases the number of mitotic cells in tumor tissues. KIF18A-IN-2 can be used for researching cancer[1].
Ganoderic acid T-Q (Ganodermic acid T-Q) (compound 1) is a natural product that can be found in ganoderma lucidum. Ganoderic acid T-Q stimulates tubulin polymerization[1].
Tubulin polymerization-IN-17 (compound 23g) is a potent inhibitor of tubulin polymerization. Tubulin polymerization-IN-17 exhibits tubulin depolymerization and induced cell apoptosis and inhibits migration. Tubulin polymerization-IN-17 has the potential for the research of cancer diseases[1].
Tubulysin E is a highly cytotoxic peptide isolated from the myxobacterial species Archangium geophyra and Angiococcus disciformis. Tubulysin displays extremely potent cytotoxic activity in mammalian cells, including multidrug-resistant cell lines, with IC50 values in the lower nanomolar range[1]. Tubulysin E is a cytotoxic activity tubulysin which inhibits tubulin polymerization and leads to cell cycle arrest and apoptosis[2].
ELR510444 is a novel microtubule disruptor; inhibits MDA-MB-231 cell proliferation with IC50 of 30.9 nM; not a substrate for the P-glycoprotein drug transporter and retains activity in βIII-tubulin-overexpressing cell lines.IC50 value: 30.9 nM(MDA-MB-231 cell) [1]Target: Microtubule disruptorELR510444 is not a substrate for the P-glycoprotein drug transporter and retains activity in βIII-tubulin-overexpressing cell lines, suggesting that it circumvents both clinically relevant mechanisms of drug resistance to this class of agents. ELR510444 also shows potent antitumor activity in the MDA-MB-231 xenograft model with at least a 2-fold therapeutic window. Studies in tumor endothelial cells show that a low concentration of ELR510444 (30 nM) rapidly alters endothelial cell shape, similar to the effect of the vascular disrupting agent combretastatin A4. ELR510444 is a novel microtubule-disrupting agent with potential antivascular effects and in vivo antitumor efficacy [1]. ELR510444 decreased HIF-1α and HIF-2α levels, reduced RCC cell viability and clonogenic survival, and induced apoptosis. VHL-deficient RCC cells were more sensitive to ELR510444-mediated apoptosis and restoration of VHL promoted drug resistance. Higher concentrations of ELR51044 promoted apoptosis independently of VHL status, possibly due to the microtubule destabilizing properties of this agent. ELR510444 significantly reduced tumor burden in the 786-O and A498 RCC xenograft models [2].