Neuroend.crine(NE)transformation is a mechanism of resistance to targeted.therapy in lung and.prostate ad.nocarcinomas lead.ng to poor *** to d.te,even if patients at high risk of transformation can be id.ntified.by t...
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Neuroend.crine(NE)transformation is a mechanism of resistance to targeted.therapy in lung and.prostate ad.nocarcinomas lead.ng to poor *** to d.te,even if patients at high risk of transformation can be id.ntified.by the occurrence of Tumor Protein P53(TP53)and.Retinoblastoma Transcriptional Corepressor 1(RB1)mutations in their tumors,no therapeutic strategies are available to prevent or d.lay histological *** of the cell cycle kinase Cell d.vision Cycle 7(Cd.7)occurred.in tumors d.ring the initial steps of NE transformation,alread. after TP53/RB1 co-inactivation,lead.ng to ind.ced.sensitivity to the Cd.7 inhibitor ***7 inhibition suppressed.NE transd.fferentiation and.extend.d.response to targeted.therapy in in vivo mod.ls of NE transformation by ind.cing the proteasome-med.ated.d.grad.tion of the MYC Proto-Oncogen(MYC),implicated.in stemness and.histological *** overexpression of a d.grad.tion-resistant MYC isoform reestablished.the NE transformation phenotype observed.on targeted.therapy,even in the presence of ***7 inhibition also marked.y extend.d.response to stand.rd.cytotoxics(cisplatin,irinotecan)in lung and.prostate small cell carcinoma *** results nominate Cd.7 inhibition as a therapeutic strategy to constrain lineage plasticity,as well as to effectively treat NE tumors d. novo or after *** simurosertib clinical efficacy trials are ongoing,this concept could.be read.ly translated.for patients at risk oftransformation.
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