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: Article査読

22 被引用数 (Scopus)

抄録

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.

本文言語English
ページ(範囲)1017-1026
ページ数10
ジャーナルCancer science
104
8
DOI
出版ステータスPublished - 2013 8

ASJC Scopus subject areas

  • 腫瘍学
  • 癌研究

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