Mivobulin is a tubulin inhibitor potentially for the treatment of glioma, malignant melanoma, prostate, ovarian cancer. CI-980 acts at the colchicine-binding site.
Combretastatin A-1 phosphate (OXi-4503) tetrasodium, a prodrug of Combretastatin A-1, is a tubulin-binding microtubule polymerization inhibitor that targets the colchicine-binding site. By inducing tubulin depolymerization, Combretastatin A-1 phosphate tetrasodium inhibits the Wnt β-catenin pathway and leads to the deactivation of AKT. It possesses both anti-tumor and anti-vascular properties.
Tubulin polymerization-IN-37 is a potent inhibitor (IC50: 2.3 μΜ) of tubulin polymerization by binding specifically to the colchicine site of tubulin and preventing colchicinebinding. It has potential applications in cancer research, notably for lymphomas [1].
MY-875 is a potent microtubulin polymerization inhibitor that competes at colchicinebinding sites, exhibiting an IC50 value of 0.92 μM. It effectively suppresses microtubulin polymerization, exerting its inhibitory effect. Additionally, MY-875 exerts its biological impact by activating the Hippo pathway, inducing apoptosis, and displaying commendable anticancer activity [1].
Tubulin polymerization-IN-26 (compound 12h) is a chemical compound that inhibits the polymerization of microtubulin. It achieves this by binding to the colchicinebinding site of microtubulin, with an IC50 value of 4.64 μM. Additionally, Tubulin polymerization-IN-26 has the ability to induce apoptosis and inhibit cell metastasis or migration. Due to these properties, it holds potential as a valuable compound for researching lung cancer [1].
IRC-083927 HCl is novel and potent microtubule inhibitor with potential anticancer activity. IRC-083927 inhibits the tubulin polymerization by a binding to the colchicine site. IRC-083927 inhibits in vitro cell growth of human cancer cell lines in the low nanomolar range. More interesting, it remains highly active against cell lines resistant to microtubule-interacting agents (taxanes, Vinca alkaloids, or epothilones). Chronic oral treatment with IRC-083927 (5 mg kg) inhibits the growth of two human tumor xenografts in nude mice (C33-A, human cervical cancer and MDA-MB-231, human hormone-independent breast cancer). Together, the antitumor effects induced by IRC-083927 on tumor models resistant to tubulin agents support further investigations to fully evaluate its potential for the treatment of advanced cancers, particularly those resistant to current clinically available drugs.
IG-105 is a potent microtubule inhibitor with potential anticancer activity. IG-105 inhibits microtubule assembly by binding at colchicine pocket. IG-105 shows a potent anticancer activity in vitro and in vivo and has good safety in mice. IG-105 showed a potent activity against human leukemia and solid tumors in breast, liver, prostate, lung, skin, colon, and pancreas with IC(50) values between 0.012 and 0.298 mumol L. It was also active in drug-resistant tumor cells and not a P-glycoprotein substrate. It inhibited microtubule assembly followed by M-phase arrest, Bcl-2 inactivation, and then apoptosis through caspase pathways.
Cornigerine is a natural product analog of colchicine produced by Colchicum cornigerum that inhibited tubulin polymerization both with and without microtubule-associated proteins, inhibited the binding of radiolabeled colchicine to tubulin, and stimulated tubulin-dependent GTP hydrolysis.
ABI-231 is a potent, orally bioavailable tubulin inhibitor that interacts with the colchicinebinding site and is currently undergoing clinical trials for prostate cancer. ABI-231, has an average IC50 = 5.2 nM against panels of melanoma and prostate cancer cell lines, is orally bioavailable, and strongly suppress melanoma tumors in vivo. ABI-231 holds great promise as a new generation of orally available tubulin inhibitor.