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Journal: Phosphorylation, Mg-ADP, and Inhibitors Differentially Shape the Conformational Dynamics of the A-Loop of Aurora-A. (Pubmed Central) - Sep 19, 2021 In the closed states, binding of CD532 and MLN8054 inhibitors has the effect of increasing the distance of the N- and C-lobes of the kinase domain of Aurora-A, and the angle analysis between those two lobes during MD simulations showed that the N- and C-lobes are kept more open in presence of CD532, compared to MLN8054. As the A-loop is a common feature of Aurora protein kinases, our studies provide a general description of the conformational dynamics of this structure upon phosphorylation and different ligands binding.
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Journal: Aurora A inhibition disrupts chromosome condensation and spindle assembly during the first embryonic division in pigs. (Pubmed Central) - Dec 23, 2020 Then, the potential role of Aurora A was further evaluated using a highly selective Aurora A inhibitor, MLN8054, during this mitotic progression in pig embryos...Further subcellular structure examination showed that Aurora A inhibition not only led to the failure of spindle microtubule assembly, but also resulted in severe defects in chromosome condensation, accompanied by an obvious decrease in p-TACC3(S558) expression during the prophase of the first mitosis. Together, these results illustrated that Aurora A is crucial for both spindle assembly and chromosome condensation during the first mitotic division in pig embryos, and that the regulation of Aurora A may be associated with its effects on p-TACC3(S558) expression.
- |||||||||| tozasertib (MK-0457) / Vertex, Merck (MSD)
Journal: RIPK1-dependent cell death: a novel target of the Aurora kinase inhibitor Tozasertib (VX-680). (Pubmed Central) - Sep 18, 2019 The potency ranking of the newly derived Tozasertib analogues and their specificity profile, as observed in cellular assays, coincide with ADP-Glo recombinant kinase activity assays. Overall, we show that Tozasertib not only targets Aurora kinases but also RIPK1 independently, and that we could generate analogues with increased selectivity to RIPK1 or Aurora kinases, respectively.
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Enrollment change, Metastases: A Phase 1 Trial of Extended MLN8054 Dosing in Patients With Advanced Malignancies (clinicaltrials.gov) - Sep 19, 2013 P1, N=44, Terminated, Overall, we show that Tozasertib not only targets Aurora kinases but also RIPK1 independently, and that we could generate analogues with increased selectivity to RIPK1 or Aurora kinases, respectively. N=60 --> 44
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