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Ref Type Journal Article
PMID (25519148)
Authors Sasano T, Mabuchi S, Kuroda H, Kawano M, Matsumoto Y, Takahashi R, Hisamatsu T, Sawada K, Hashimoto K, Isobe A, Testa JR, Kimura T
Title Preclinical Efficacy for AKT Targeting in Clear Cell Carcinoma of the Ovary.
Journal Molecular cancer research : MCR
Vol 13
Issue 4
Date 2015 Apr
Abstract Text The aim of this study was to determine the role of AKT as a therapeutic target in ovarian clear cell carcinoma (CCC), an aggressive, chemoresistant histologic subtype of ovarian cancer. AKT activation was assessed by immunohistochemistry (IHC) using human tissue microarrays of primary ovarian cancers, composed of both CCC and serous adenocarcinoma (SAC). The growth-inhibitory effect of AKT-specific targeting by the small-molecule inhibitor, perifosine, was examined using ovarian CCC cell lines in vitro and in vivo. Finally, the activity of perifosine was examined using in CCC-derived tumors that had acquired resistance to anti-VEGF or chemotherapeutics such as bevacizumab or cisplatin, respectively. Interestingly, AKT was frequently activated both in early-stage and advanced-stage CCCs. Treatment of CCC cells with perifosine attenuated the activity of AKT-mTORC1 signaling, inhibited proliferation, and induced apoptosis. The effect of perifosine was more profound under conditions of high AKT activity compared with low AKT activity. Increased AKT activation and enhanced sensitivity to perifosine were observed in the context of cisplatin-resistant CCC. Treatment with perifosine concurrently with cisplatin significantly enhanced the antitumor effect of cisplatin. Moreover, perifosine showed significant antitumor activity in CCC-derived tumors that had acquired resistance to bevacizumab or cisplatin. Collectively, these data reveal that AKT is frequently activated in ovarian CCCs and is a promising therapeutic target in aggressive forms of ovarian cancer.AKT-targeted therapy has value in a first-line setting as well as a second-line treatment for recurrent disease developing after platinum-based chemotherapy or bevacizumab treatment.


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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
AKT1 positive ovarian clear cell carcinoma predicted - sensitive Perifosine Preclinical - Cell line xenograft Actionable In a preclinical study, Perifosine (KRX-0401) inhibited Akt1 signaling, inhibited proliferation, and induced apoptosis in human ovarian clear cell cancer cells with activated Akt1 in culture and inhibited tumor growth in cell line xenografts (PMID: 25519148). 25519148
AKT1 positive ovarian clear cell carcinoma predicted - sensitive Cisplatin + Perifosine Preclinical - Cell culture Actionable In a preclinical study, Perifosine (KRX-0401) enhanced the sensitivity of human ovarian clear cell cancer cells with activated Akt1 to Platinol (cisplatin) treatment in culture (PMID: 25519148). 25519148