302602-92-2Relevant academic research and scientific papers
Molecular insights to the bioactive form of BV02, a reference inhibitor of 14-3-3σ protein-protein interactions
Valensin, Daniela,Cau, Ylenia,Calandro, Pierpaolo,Vignaroli, Giulia,Dello Iacono, Lucia,Chiariello, Mario,Mori, Mattia,Botta, Maurizio
, p. 894 - 898 (2016)
BV02 is a reference inhibitor of 14-3-3 protein-protein interactions, which is currently used as chemical biology tool to understand the role of 14-3-3 proteins in pathological contexts. Due to chemical instability in certain conditions, its bioactive for
A new nonpeptidic inhibitor of 14-3-3 induces apoptotic cell death in chronic myeloid leukemia sensitive or resistant to imatinib
Mancini, Manuela,Corradi, Valentina,Petta, Sara,Barbieri, Enza,Manetti, Fabrizio,Botta, Maurizio,Santucci, Maria Alessandra
, p. 596 - 604 (2011)
Resistance of chronic myeloid leukemia (CML) to tyrosine kinase inhibitor imatinib mesylate (IM) is most often due to point mutations in the Bcr-Abl fusion gene. T315I mutation (resulting in substitution of Ile for a Thr residue at the gatekeeper position 315) raises particular concern, because it also provides resistance to second-generation kinase inhibitors already approved for clinical use (nilotinib and dasatinib). Much effort is therefore focused on alternative molecular-based strategies. Previous studies proved that binding to 14-3-3 scaffolding proteins leads to cytoplasmic compartmentalization and suppression of proapoptotic and antiproliferative signals associated with Bcr-Abl protein kinase, hence contributing to leukemic clone expansion. Here we investigated the effect of 14-3-3 inhibition disruption on hematopoietic cells expressing the IM-sensitive wild type Bcr-Abl and the IM-resistant T315I mutation. Using a virtual screening protocol and docking simulations, we identified a nonpeptidic inhibitor of 14-3-3, named BV02, that exhibits a remarkable cytotoxicity against both cell types. c-Abl release from 14-3-3σ, promoting its relocation to nuclear compartment (where it triggers transcription of p73-dependent proapoptotic genes) and to mitochondrial membranes (where it induces the loss of mitochondrial transmembrane potential) combined with c-Abl enhanced association with caspase 9 (a critical step of sequential caspase activation further contributing to c-Abl pro-apoptotic function) has a prominent role in the effect of BV02 on Bcr-Abl-expressing cells. In conclusion, BV02 may be considered as a treatment option for CML and, in particular, for more advanced phases of the disease that developed IM resistance as a consequence of Bcr-Abl point mutations. Copyright
Identification of the first non-peptidic small molecule inhibitor of the c-Abl/14-3-3 protein-protein interactions able to drive sensitive and Imatinib-resistant leukemia cells to apoptosis
Corradi, Valentina,Mancini, Manuela,Manetti, Fabrizio,Petta, Sara,Santucci, Maria Alessandra,Botta, Maurizio
, p. 6133 - 6137 (2010)
An in silico structure-based ligand design approach resulted in the identification of the first non-peptidic small molecule able to inhibit protein-protein interactions between 14-3-3 and c-Abl. This compound shows an anti-proliferative effect on human leukemia cells either sensitive or resistant to Imatinib, in consequence of the T315I mutation. It also mediates c-Abl release from 14-3-3 in a way similar to that found in response to Imatinib treatment.
