Combination of eribulin plus AKT inhibitor evokes synergistic cytotoxicity in soft tissue sarcoma cells

An activated AKT pathway underlies the pathogenesis of soft tissue sarcoma (STS), with over-expressed phosphorylated AKT (p-AKT) correlating with a poor prognosis in a subset of STS cases. Recently, eribulin, a microtubule dynamics inhibitor, has demonstrated efficacy and is approved in patients wit...

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Veröffentlicht in:Scientific reports 2019-04, Vol.9 (1), p.5759, Article 5759
Hauptverfasser: Hayasaka, Naotaka, Takada, Kohichi, Nakamura, Hajime, Arihara, Yohei, Kawano, Yutaka, Osuga, Takahiro, Murase, Kazuyuki, Kikuchi, Shohei, Iyama, Satoshi, Emori, Makoto, Sugita, Shintaro, Hasegawa, Tadashi, Takasawa, Akira, Miyanishi, Koji, Kobune, Masayoshi, Kato, Junji
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container_title Scientific reports
container_volume 9
creator Hayasaka, Naotaka
Takada, Kohichi
Nakamura, Hajime
Arihara, Yohei
Kawano, Yutaka
Osuga, Takahiro
Murase, Kazuyuki
Kikuchi, Shohei
Iyama, Satoshi
Emori, Makoto
Sugita, Shintaro
Hasegawa, Tadashi
Takasawa, Akira
Miyanishi, Koji
Kobune, Masayoshi
Kato, Junji
description An activated AKT pathway underlies the pathogenesis of soft tissue sarcoma (STS), with over-expressed phosphorylated AKT (p-AKT) correlating with a poor prognosis in a subset of STS cases. Recently, eribulin, a microtubule dynamics inhibitor, has demonstrated efficacy and is approved in patients with advanced/metastatic liposarcoma and breast cancer. However, mechanisms of eribulin resistance and/or insensitivity remain largely unknown. In this study, we demonstrated that an increased p-AKT level was associated with eribulin resistance in STS cells. We found a combination of eribulin with the AKT inhibitor, MK-2206, synergistically inhibited STS cell growth in vivo as well as in vitro . Mechanistically, eribulin plus MK-2206 induced G1 or G2/M arrest by down-regulating cyclin-dependent kinases, cyclins and cdc2, followed by caspase-dependent apoptosis in STS cells. Our findings demonstrate the significance of p-AKT signaling for eribulin-resistance in STS cells and provide a rationale for the development of an AKT inhibitor in combination with eribulin to treat patients with STS.
doi_str_mv 10.1038/s41598-019-42300-z
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Recently, eribulin, a microtubule dynamics inhibitor, has demonstrated efficacy and is approved in patients with advanced/metastatic liposarcoma and breast cancer. However, mechanisms of eribulin resistance and/or insensitivity remain largely unknown. In this study, we demonstrated that an increased p-AKT level was associated with eribulin resistance in STS cells. We found a combination of eribulin with the AKT inhibitor, MK-2206, synergistically inhibited STS cell growth in vivo as well as in vitro . Mechanistically, eribulin plus MK-2206 induced G1 or G2/M arrest by down-regulating cyclin-dependent kinases, cyclins and cdc2, followed by caspase-dependent apoptosis in STS cells. Our findings demonstrate the significance of p-AKT signaling for eribulin-resistance in STS cells and provide a rationale for the development of an AKT inhibitor in combination with eribulin to treat patients with STS.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>30962488</pmid><doi>10.1038/s41598-019-42300-z</doi><orcidid>https://orcid.org/0000-0003-3828-8444</orcidid><oa>free_for_read</oa></addata></record>
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subjects 13/1
13/2
13/31
64/60
692/4028/67/1798
692/699/67/1798
82/80
AKT protein
Animals
Antineoplastic Agents - toxicity
Apoptosis
Apoptosis - drug effects
Breast cancer
Caspase
Cdc2 protein
Cell Cycle Checkpoints
Cell Line
Cell Line, Tumor
Cyclin-dependent kinases
Cyclin-Dependent Kinases - genetics
Cyclin-Dependent Kinases - metabolism
Cyclins
Cyclins - genetics
Cyclins - metabolism
Cytotoxicity
Drug Synergism
Furans - toxicity
Heterocyclic Compounds, 3-Ring - toxicity
Humanities and Social Sciences
Humans
Ketones - toxicity
Liposarcoma
Metastases
Mice
Mice, Inbred BALB C
multidisciplinary
Protein Kinase Inhibitors - toxicity
Proto-Oncogene Proteins c-akt - genetics
Proto-Oncogene Proteins c-akt - metabolism
Sarcoma
Sarcoma - metabolism
Science
Science (multidisciplinary)
Soft Tissue Neoplasms - metabolism
Soft tissue sarcoma
Tissues
Tumors
title Combination of eribulin plus AKT inhibitor evokes synergistic cytotoxicity in soft tissue sarcoma cells
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