Naoto Kondo

No Association Between CYP2D6*10 Genotype and Survival of Node-negative Japanese Breast Cancer Patients Receiving Adjuvant Tamoxifen Treatment (2009)

Toyama, Tatsuya, Yamashita, Hiroko, Sugiura, Hiroshi, Kondo, Naoto, Iwase, Hirotaka, Fujii, Yoshitaka

Objective The CYP2D6 enzyme plays a major role in converting tamoxifen to its active metabolites. We investigated whether there is an association between the CYP2D6*10 allele and clinical outcome in...

Frequently increased epidermal growth factor receptor (EGFR) copy numbers and decreased BRCA1 mRNA expression in Japanese triple-negative breast cancers (2008)

Toyama, Tatsuya, Yamashita, Hiroko, Kondo, Naoto, Okuda, Katsuhiro, Takahashi, Satoru, Sasaki, Hidefumi, ...

Abstract Background Triple-negative breast cancer (estrogen receptor-, progesterone receptor-, and HER2-negative) (TNBC) is a high risk breast cancer that lacks specific therapy targeting these...

Possible Difference in Frequencies of Genetic Polymorphisms of Estrogen Receptor {alpha}, Estrogen Metabolism and P53 Genes Between Estrogen Receptor-positive and -negative Breast Cancers (2008)

Hamaguchi, Maho, Nishio, Mariko, Toyama, Tatsuya, Sugiura, Hiroshi, Kondo, Naoto, Fujii, Yoshitaka, ...

Objective Genetic polymorphisms associated with breast cancer risk are likely to differ among ethnic and molecular subtypes. The ability to identify genetic polymorphisms affecting the risk of...

Association of TP53codon 72 polymorphism and the outcome of adjuvant therapy in breast cancer patients (2007)

Toyama, Tatsuya, Zhang, Zhenhuan, Nishio, Mariko, Hamaguchi, Maho, Kondo, Naoto, Iwase, Hirotaka, ...

Abstract Introduction Single-nucleotide polymorphisms (SNPs) in codon 72 of the TP53 (also known as p53 ) gene (rs1042522) and in the promoter region of the MDM2 gene (SNP309; rs2279744) have been...

Low Expression of the Snail Gene is a Good Prognostic Factor in Node-Negative Invasive Ductal Carcinomas (2006)

Toyama, Tatsuya, Zhang, Zhenhuan, Iwase, Hirotaka, Yamashita, Hiroko, Ando, Yoshiaki, Hamaguchi, Maho, ...

Background: While Snail is a zinc-finger transcription factor that triggers the epithelial-mesenchymal transition, it has also been reported to be indirectly regulated by estrogen receptor α (ERα)...

Low Expression of the Snail Gene is a Good Prognostic Factor in Node-Negative Invasive Ductal Carcinomas (2006)

Toyama, Tatsuya, Zhang, Zhenhuan, Iwase, Hirotaka, Yamashita, Hiroko, Ando, Yoshiaki, Hamaguchi, Maho, ...

Background: While Snail is a zinc-finger transcription factor that triggers the epithelial- mesenchymal transition, it has also been reported to be indirectly regulated by estrogen receptor α (ERα)...