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].
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].
MK-0731 is a selective, non-competitive and allosteric kinesin spindle protein (KSP) inhibitor with an IC50 of 2.2 nM and a pKa of 7.6. MK-0731 is >20,000 fold selectivity against other kinesins. MK-0731 induces mitotic arrest and induces apoptosis in tumors. MK-0731 provides significant antitumor efficacy[1][2].
FRAX486 is a p21-activated kinase (PAK) inhibitor with IC50s of 14, 33 and 39 nM for PAK1, PAK2 and PAK3, respectively.
st-Ht31 is a membrane-permeable peptide inhibitor of protein kinase A (PKA) anchoring. st-Ht31 induces robust cholesterol/phospholipid efflux. st-Ht31 completely reverses foam cell formation and restores the metabolic health of macrophage[1][2].
Omecamtiv mecarbil is a cardiac myosin activator.
CCB02 is a selective CPAP-tubulin interaction inhibitor, binding to tubulin and competing for the CPAP binding site of β-tubulin, with an IC50 of 689 nM, and shows potent anti-tumor activity. CCB02 shows no inhibition on the cell cycle- and centrosome-related kinases, or the phosphorylation status of Aurora A, Plk1, Plk2, CDK2, and CHK1[1].
Zaurategrast ethyl ester sulfate (CDP323 sulfate), the ethyl ester prodrug of CT7758[1], is a α4β1/α4β7 integrin antagonist used for the treatment of inflammatory and autoimmune disorders[2].
Kolavenic acid analog (KAA) is an anticancer agent. Kolavenic acid analog shows strong activity against HSET-overproducing yeast cells. Kolavenic acid analog inhibits centrosome clustering in human cancer cells containing high HSET levels and supernumerary centrosomes[1].
Glochidiol is an orally active tubulin polymerization inhibitor with an IC50 of 2.76 μM. Glochidiol shows anti-cancer activity[1].
αβ-Tubulin-IN-1 is a potent and orally active αβ-Tubulin inhibitor. αβ-Tubulin-IN-1 induces cell cycle arrest at G2/M and efficient apoptosis. αβ-Tubulin-IN-1 inhibits tumor cell migration and Metastasis. αβ-Tubulin-IN-1 shows significant antitumor efficacy in a dose dependent manner[1].
GSK-923295 is a special, allosteric inhibitor of CENP-E kinesin motor ATPase activity, with Ki of 3.2±0.2 nM and 1.6± 0.1 nM for human and canine, respectively.
Microtubule inhibitor 4 (compound 2) is a potent microtubule inhibitor. Microtubule inhibitor 4 shows cytotoxicity with IC50s of 4.0, 3.2, 2.1 nM for NCI-H460, BxPC-3, HT-29 cells, respectively. Microtubule inhibitor 4 shows the inhibition of tubulin polymerization[1].
HA-100 hydrochloride is a potent protein kinase inhibitor, with IC50s of 4 μM, 8 μM, 12 μM and 240 μM for cGMP-dependent protein kinase (PKG), cAMP-dependent protein kinase (PKA), protein kinase C (PKC) and MLC-kinase, respectively. HA-100 hydrochloride also used as a ROCK inhibitor[1][2].
Gap 26 is a connexin mimetic peptide corresponding to the residues 63-75 of connexin 43, which is a gap junction blocker.
Mps1-IN-3 is a potent and selective MPS1 kinase inhibitor, with an IC50 of 50 nM.
Tubulin polymerization-IN-21 (compound 9a) is a tubulin polymerization inhibitor. Tubulin polymerization-IN-21 exhibits anti-cancer activity through disrupting cellular integrity and affecting glucose metabolism[1].
Lexibulin 2Hcl (CYT-997 2Hcl) is a potent tubulin polymerisation inhibitor with IC50 of 10-100 nM in cancer cell lines; with potent cytotoxic and vascular disrupting activity in vitro and in vivo.IC50 value: 10-100 nM(cell assay) [1]Target: tubulin polymerisation inhibitor in vitro: CYT997 prevented the in vitro polymerization of tubulin with an IC50 of ～3 μmol/L (compared with the half-maximal inhibitory concentration of 2 μmol/L for colchicine under identical conditions) as determined using the conventional turbidimetric assay for tubulin polymerization. CYT997 was also capable of reversibly disrupting the microtubule network in cells, visualized using fluorescence microscopy. Thus, treatment of A549 cells with CYT997 (1 μmol/L) lead to the rapid reorganization of microtubules, including the destruction of the existing microtubule network and accumulation of tubulin in plaques within the cytoplasm of some cells. After 24 hours, major alterations in cell morphology were evident, including loss of adhesion and cell rounding. The effect of 1 hour of treatment with CYT997 was reversible and cells rapidly recovered their normal microtubule architecture. Taken together, the data indicates that CYT997 belongs to the class of anticancer agents that disrupt, rather than stabilize, tubulin-containing structures. Although vehicle-treated cells show 15% and 19% in G2-M phase at 15 and 24 hours (respectively), cells treated with CYT997 (1 μmol/L) had 38% and 43% of cells in G2-M at the same time points. Furthermore, at 24 hours post-CYT997 treatment, only 66% of total cells were in the G1, S, and G2-M phases, which suggests that cells blocked at the G2-M boundary do not exit back to G1, as in the normal cell cycle, but most likely are driven towards apoptosis and cell death [1]. Consistent with the disruption of cellular tubulin, CYT997 potently inhibits proliferation, induces cell cycle arrest and most importantly apoptosis of both human myeloma cell lines (HMCLs) and primary MM cells [2].in vivo: In a xenograft model using the human prostate cancer cell line PC3, oral dosing of CYT997 was initiated 13 days after cell implantation by which time palpable tumors were evident. A dose-dependent inhibition of tumor growth was apparent with CYT997, which at the highest dose was equivalent to parenterally administered paclitaxel. A single dose of CYT997 (7.5 mg/kg i.p.) clearly decreased blood flow in liver metastases, and a significant reduction in blood flow was present 6 hours postdose [1]. CYT997 treatment (15 mg/kg/day) significantly prolongs the survival in a murine model of aggressive systemic myelomatosis [2].
Ispinesib is a specific inhibitor of KSP, with a Ki app of 1.7 nM.
Zaurategrast ethyl ester (CDP323), the ethyl ester prodrug of CT7758[1], is a α4β1/α4β7 integrin antagonist used for the treatment of inflammatory and autoimmune disorders[2].
Vinorelbine (ditartrate) is an anti-mitotic agent which inhibits the proliferation of Hela cells with IC50 of 1.25 nM.
Sovilnesib is a kinesin-like protein KIF18A inhibitor (WO2020132648). Sovilnesib can be used for the research of cancer[1].
3,3'-Diethyl-9-methylthiacarbocyanine iodide is a cyanine dye, also a tau aggregation inhibitor, with an IC50 value of 0.28 μM for tau. 3,3'-Diethyl-9-methylthiacarbocyanine iodide can cause misfunction of the microtubule cytoskeleton. 3,3'-Diethyl-9-methylthiacarbocyanine iodide can be used for researching Alzheimer’s disease[1].
Gap 27, connexin43 mimetic peptide, is a gap junction inhibitor.
IQTub4P is a potent microtubule (MT) inhibitor. IQTub4P has the cytotoxicity in in HeLa cells, with EC50 of 170 nM. IQTub4P inhibits microtubule structure and function. IQTub4P is well-tolerated in vivo[1].
Zaurategrast (CT7758) is a potent and oral-effective α4-integrin inhibitor.
Trimethyloctadecylammonium bromide is an inhibitor of dynamin, with an IC50 value of 1.9 μM for dynamin I. Trimethyloctadecylammonium bromide exhibits antibacterial activity against Staphylococcus aureus[1][2].
20-O-Demethyl-AP3 is a minor metabolite of Ansamitocin P-3. Ansamitocin P-3, a microtubule inhibitor, is a macrocyclic antitumor antibiotic[1].