Reference Detail

Ref Type

Journal Article

PMID

(26910118)

Authors

De Velasco MA, Kura Y, Yoshikawa K, Nishio K, Davies BR, Uemura H

Title

Efficacy of targeted AKT inhibition in genetically engineered mouse models of PTEN-deficient prostate cancer.

Journal	Vol	Issue	Date	Pages	Journal Short Title
Oncotarget	7	13	2016 Mar 29	15959-76	Oncotarget

URL

Abstract Text

The PI3K/AKT pathway is frequently altered in advanced human prostate cancer mainly through the loss of functional PTEN, and presents as potential target for personalized therapy. Our aim was to determine the therapeutic potential of the pan-AKT inhibitor, AZD5363, in PTEN-deficient prostate cancer. Here we used a genetically engineered mouse (GEM) model of PTEN-deficient prostate cancer to evaluate the in vivo pharmacodynamic and antitumor activity of AZD5363 in castration-naïve and castration-resistant prostate cancer. An additional GEM model, based on the concomitant inactivation of PTEN and Trp53 (P53), was established as an aggressive model of advanced prostate cancer and was used to further evaluate clinically relevant endpoints after treatment with AZD5363. In vivo pharmacodynamic studies demonstrated that AZD5363 effectively inhibited downstream targets of AKT. AZD5363 monotherapy significantly reduced growth of tumors in castration-naïve and castration-resistant models of PTEN-deficient prostate cancer. More importantly, AZD5363 significantly delayed tumor growth and improved overall survival and progression-free survival in PTEN/P53 double knockout mice. Our findings demonstrate that AZD5363 is effective against GEM models of PTEN-deficient prostate cancer and provide lines of evidence to support further investigation into the development of treatment strategies targeting AKT for the treatment of PTEN-deficient prostate cancer.

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Molecular Profile	Treatment Approach

Gene Name	Source	Synonyms	Protein Domains	Gene Description	Gene Role

Therapy Name	Drugs	Efficacy Evidence	Clinical Trials

Drug Name	Trade Name	Synonyms	Drug Classes	Drug Description

Gene	Variant	Impact	Protein Effect	Variant Description	Associated with drug Resistance

Molecular Profile	Indication/Tumor Type	Response Type	Therapy Name	Approval Status	Evidence Type	Efficacy Evidence	References
PTEN loss	prostate cancer	sensitive	Capivasertib	Preclinical	Actionable	In a preclinical study, treatment with Truqap (capivasertib) decreased AKT phosphorylation and downstream signaling and reduced tumor burden in mouse models of PTEN-deficient prostate cancer, including both castration-naive and castration-resistant models (PMID: 26910118).	26910118
PTEN loss TP53 loss	prostate cancer	sensitive	Capivasertib	Preclinical	Actionable	In a preclinical study, treatment with Truqap (capivasertib) improved overall survival and progression-free survival in mouse models of prostate cancer with inactivated PTEN and TP53 (PMID: 26910118).	26910118