spindle

Alisertib (MLN 8237) is a specific Aurora A inhibitor (IC50: 1.2 nM). The selectivity of Alisertib(MLN 8237) is >200-fold higher for Aurora A than Aurora B.

BO-264 is a highly potent and orally active inhibitor of transforming acidic coiled-coil 3 (TACC3) with an IC50 of 188 nM and a Kd of 1.5 nM.

(-)-Epipodophyllotoxin (2) is an antiproliferative agent targeting cancer cells, exhibiting GI50 values of 0.36 μM in HeLa cells and 0.24 μM in MCF-7 cells, and inhibiting mitotic spindle assembly in vitro.

BAY 1217389 is an effective and selective inhibitor of the monopolar spindle 1 (MPS1) kinase (IC50<10 nM).

NMS-P715 is a selective and ATP-competitive MPS1 inhibitor(IC50 of 182 nM).

BOS-172722 is an inhibitor of the monopolar spindle 1 (MPS1) checkpoint with an IC50 of 2 nM.

Mps1-IN-3 is an effective and selective inhibitor of MPS1 kinase (IC50: 50 nM).

Mps1-IN-2 is a potent, selective, and ATP-competitive inhibitor of both Mps1 and Plk1.

MPI-0479605 is an ATP competitive and selective inhibitor.

AZ3146 is a selective Mps1 inhibitor with IC50 of ~35 nM.

Empesertib (BAY 1161909) is an orally bioavailable and selective inhibitor Mps1(IC50 < 1 nM), with potential antineoplastic activity.

Ciliobrevin D is a AAA+ ATPase motor cytoplasmic dynein inhibitor. Ciliobrevin D inhibits Hedgehog (Hh) signaling and primary cilia formation and it also inhibits dynein-dependent microtubule gliding and ATPase activity in vitro.

AZD-4877 is a potent spindle kinesin (Eg5) inhibitor with an IC50 value of 2 nM. AZD-4877 is an alternative configuration of Ispinesib that inhibits mitosis, induces the formation of a unipolar spindle phenotype, and mediates apoptosis. AZD-4877 has antitumor activity and inhibits circulating peripheral blood mononuclear cells (PBMC).

MKC-1 (Ro-31-7453) is an orally bioavailable small-molecule bisindolylmaleimide cell cycle inhibitor with potential antineoplastic activity. MKC-1 and its metabolites inhibit tubulin polymerization, blocking mitotic spindle formation, which may result in apoptosis and tumor cell death.

Phenytoin (5,5-Diphenylhydantoin) is a hydantoin derivative and a non-sedative antiepileptic agent with anticonvulsant activity. It potentially acts by promoting sodium efflux from neurons in the motor cortex, reducing post-tetanic potentiation at synapses. This prevents cortical seizure foci from spreading to adjacent areas and stabilizes the threshold against hyperexcitability. Additionally, it appears to reduce muscle spindle sensitivity to stretch, causing muscle relaxation.

Podofilox ((+)-Shikonin) is a lignan (LIGNANS) found in PODOPHYLLIN resin from the roots of PODOPHYLLUM plants. It is a potent spindle poison, toxic if taken internally, and has been used as a cathartic. It is very irritating to skin and mucous membranes, has keratolytic actions, has been used to treat warts and keratoses, and may have antineoplastic properties, as do some of its congeners and derivatives.

S-trityl-L-Cysteine is a non-natural amino acid and an inhibitor of Eg5, also known as KSP and Kif11, a mitotic kinesin necessary for mitotic spindle formation. S-trityl-L-Cysteine inhibits the ATPase activity of Eg5 in basal and microtubule-stimulated states (IC50s = 1,000 and 140 nM, respectively). It is selective for Eg5 over nine other human kinesins in an enzyme-coupled assay. It reversibly inhibits Eg5-driven microtubule sliding velocity with an IC50 value of 500 nM using X. laevis recombinant Eg5. It induces cell cycle arrest in HeLa cells (IC50 = 700 nM), reversibly halting the cell cycle in the mitotic phase by inhibiting the separation of duplicated chromosomes and preventing bipolar spindle formation. S-trityl-L-Cysteine inhibits the growth of cancer cells in vitro when tested against the National Cancer Institute (NCI) 60 human cancer cell line panel (average GI50 = 1.3 μM) and in mouse xenograft models.

TTK/PLK1-IN-1 (Formula I) is an inhibitor of threonine tyrosine kinase (TTK) and polo-like kinase 1 (PLK1), with IC50 values of 7 nM and 72 nM, respectively. It regulates the spindle assembly checkpoint (SAC) and exhibits antitumor activity against triple-negative breast cancer (TNBC).

TTK inhibitor 3 (compound 25) is a selective inhibitor of TTK (Threonine Tyrosine Kinase) with an IC50 of 3.0 nM for TTK and 16.0 nM for CAL-51 cells. It inhibits tumor growth in CAL-51 xenograft models and TNBC (triple-negative breast cancer) PDX models.

Vinorelbine (KW-2307 base) is a semisynthetic vinca alkaloid. Vinorelbine binds to tubulin and prevents the formation of the mitotic spindle, resulting in the arrest of tumor cell growth in metaphase.

(R)-Filanesib (ARRY-520) is a synthetic kinesin spindle protein (KSP) inhibitor with an IC₅₀ of approximately 6 nM. It inhibits KSP-mediated spindle formation, thereby inducing mitotic arrest and suppressing cell proliferation.

CCT251455, the mitotic kinase monopolar spindle 1 (MPS1/TTK) inhibitor, is a potent (IC50=3 nM) and specific chemical tool.

TC-Mps1-12 is an effective and selective inhibitor of monopolar spindle 1 (IC50: 6.4 nM) .

STAT3-IN-31 (compound K2071), derived from STATtic, acts as an inhibitor of both STAT3 and mitotic processes. This compound interrupts mitotic progression and impacts the formation of the mitotic spindle. Additionally, STAT3-IN-31 hampers migration in glioblastoma cells, suppresses cellular proliferation within tumor spheroids, induces senescence in glioblastoma, and inhibits the growth of Temozolomide-resistant cells while reducing the secretion of the pro-inflammatory cytokine monocyte chemoattractant protein (MCP-1).