Identification of drug candidate against prostate cancer from the aspect of somatic cell reprogramming

Takeo Kosaka, Go Nagamatsu, Shigeru Saito, Mototsugu Oya, Toshio Suda, Katsuhisa Horimoto

研究成果: ジャーナルへの寄稿記事

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Considering the similarities between the transcriptional programming involved in cancer progression and somatic cell reprogramming, we tried to identify drugs that would be effective against malignant cancers. We used the early transposon Oct4 and Sox2 enhancer (EOS) system to select human prostate cancer (PCA) cells expressing high levels of OCT4. Patients with metastatic castration-resistant PCA that does not respond to treatment with docetaxel have few therapeutic options. The OCT4-expressing PCA cells selected using the EOS system showed increased tumorigenicity and high resistance to docetaxel, both in vitro and in vivo. By using their gene expression data, expression signature-based prediction for compound candidates identified an antiviral drug, ribavirin, as a conversion modulator from drug resistance to sensitivity. Treatment of PCA cells with ribavirin decreased their resistance against treatment with docetaxel. This indicated that ribavirin reversed the gene expression, including that of humoral factors, in the OCT4-expressing PCA cells selected using the EOS system. Thereby, ribavirin increased the efficacy of docetaxel for cancer cells. We propose a novel cell reprogramming approach, named drug efficacy reprogramming, as a new model for identifying candidate antitumor drugs.

元の言語英語
ページ(範囲)1017-1026
ページ数10
ジャーナルCancer Science
104
発行部数8
DOI
出版物ステータス出版済み - 8 1 2013
外部発表Yes

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All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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