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Journal Articles

Nrf2 Is Essential for the Chemopreventive Efficacy of Oltipraz against Urinary Bladder Carcinogenesis

Katsuyuki Iida, Ken Itoh, Yoshito Kumagai, Ryoichi Oyasu, Kazunori Hattori, Koji Kawai, Toru Shimazui, Hideyuki Akaza, Masayuki Yamamoto
Journal: Cancer Research
Cancer Res (2004) 64 (18): 6424–6431.
https://doi.org/10.1158/0008-5472.CAN-04-1906
Published: 16 September 2004
View articletitled, Nrf2 Is Essential for the Chemopreventive Efficacy of Oltipraz against Urinary Bladder Carcinogenesis
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Journal Articles

Interleukin-6 as a Paracrine and Autocrine Growth Factor in Human Prostatic Carcinoma Cells in Vitro

Masato Okamoto, Chung Lee, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1997) 57 (1): 141–146.
Published: 01 January 1997
View articletitled, Interleukin-6 as a Paracrine and Autocrine Growth Factor in Human Prostatic Carcinoma Cells in Vitro
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Journal Articles

Transformation in Vitro of a Nontumorigenic Rat Urothelial Cell Line by Hydrogen Peroxide

Masato Okamoto, Koji Kawai, Catherine A. Reznikoff, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1996) 56 (20): 4649–4653.
Published: 01 October 1996
View articletitled, Transformation in Vitro of a Nontumorigenic Rat Urothelial Cell Line by Hydrogen Peroxide
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Journal Articles

Epidermal Growth Factor-Responsive and -Refractory Carcinomas Initiated with N-methyl-N-nitrosourea in Rat Urinary Bladder

Kiyohide Fujimoto, Yoshinori Tanaka, Alfred Rademaker, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1996) 56 (11): 2666–2670.
Published: 01 June 1996
View articletitled, Epidermal Growth Factor-Responsive and -Refractory Carcinomas Initiated with N-methyl-N-nitrosourea in Rat Urinary Bladder
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Journal Articles

Enhancement of Transformation in Vitro of a Nontumorigenic Rat Urothelial Cell Line by Interleukin 6

Masato Okamoto, Hitoshi Kawamata, Koji Kawai, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1995) 55 (20): 4581–4585.
Published: 01 October 1995
View articletitled, Enhancement of Transformation in Vitro of a Nontumorigenic Rat Urothelial Cell Line by Interleukin 6
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Journal Articles

Persistence of Carcinogen-altered Cell Population in Rat Urothelium Which Can Be Promoted to Tumors by Chronic Inflammatory Stimulus

Koji Kawai, Hitoshi Kawamata, Shuji Kemeyama, Alfred Rademaker, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1994) 54 (10): 2630–2632.
Published: 01 May 1994
View articletitled, Persistence of Carcinogen-altered Cell Population in Rat Urothelium Which Can Be Promoted to Tumors by Chronic Inflammatory Stimulus
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Journal Articles

Enhancement of Rat Urinary Bladder Tumorigenesis by Lipopolysaccharide-induced Inflammation

Koji Kawai, Masashi Yamamoto, Shuji Kameyama, Hitoshi Kawamata, Alfred Rademaker, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1993) 53 (21): 5172–5175.
Published: 01 November 1993
View articletitled, Enhancement of Rat Urinary Bladder Tumorigenesis by Lipopolysaccharide-induced Inflammation
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Journal Articles

Marked Enhancement of Rat Urinary Bladder Carcinogenesis by Heat-killed Escherichia coli

Masashi Yamamoto, Howard H. Wu, Hitoshi Momose, Alfred Rademaker, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1992) 52 (19): 5329–5333.
Published: 01 October 1992
View articletitled, Marked Enhancement of Rat Urinary Bladder Carcinogenesis by Heat-killed Escherichia coli
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Journal Articles

Tumorigenic Transformation and Neoplastic Progression of Human Uroepithelial Cells after Exposure in Vitro to 4-Aminobiphenyl or Its Metabolites

Elizabeth A. Bookland, Santhanam Swaminathan, Ryoichi Oyasu, Kennedy W. Gilchrist, Mary Lindstrom, Catherine A. Reznikoff
Journal: Cancer Research
Cancer Res (1992) 52 (6): 1606–1614.
Published: 01 March 1992
View articletitled, Tumorigenic Transformation and Neoplastic Progression of Human Uroepithelial Cells after Exposure in Vitro to 4-Aminobiphenyl or Its Metabolites
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Journal Articles

Neoplastic Progression by EJ/ras at Different Steps of Transformation in Vitro of Human Uroepithelial Cells

Carol I. Pratt, Chinghai Kao, Shi-Q. Wu, Kennedy W. Gilchrist, Ryoichi Oyasu, Catherine A. Reznikoff
Journal: Cancer Research
Cancer Res (1992) 52 (3): 688–695.
Published: 01 February 1992
View articletitled, Neoplastic Progression by EJ/ras at Different Steps of Transformation in Vitro of Human Uroepithelial Cells
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Journal Articles

Tumor-promoting Effect of Urinary Epidermal Growth Factor in Rat Urinary Bladder Carcinogenesis

Hitoshi Momose, Hiroaki Kakinuma, Sabeeha Y. Shariff, Glen B. Mitchell, Alfred Rademaker, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1991) 51 (20): 5487–5490.
Published: 01 October 1991
View articletitled, Tumor-promoting Effect of Urinary Epidermal Growth Factor in Rat Urinary Bladder Carcinogenesis
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Journal Articles

Nonrandom Chromosome Losses in Stepwise Neoplastic Transformation in Vitro of Human Uroepithelial Cells

Shi-Qi Wu, Barry E. Storer, Elizabeth A. Bookland, Aloysius J. Klingelhutz, Kennedy W. Gilchrist, Lorraine F. Meisner, Ryoichi Oyasu, Catherine A. Reznikoff
Journal: Cancer Research
Cancer Res (1991) 51 (12): 3323–3326.
Published: 01 June 1991
View articletitled, Nonrandom Chromosome Losses in Stepwise Neoplastic Transformation in Vitro of Human Uroepithelial Cells
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Journal Articles

In Vitro Malignant Conversion of Low-Grade Rat Urinary Bladder Carcinoma Cells by Exposure to N-Methyl-N-nitrosourea

Masayuki Azuma, Hitoshi Momose, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1990) 50 (21): 7062–7067.
Published: 01 November 1990
View articletitled, In Vitro Malignant Conversion of Low-Grade Rat Urinary Bladder Carcinoma Cells by Exposure to N-Methyl-N-nitrosourea
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Journal Articles

Inhibitory Action of α-Difluoromethylornithine on N-Butyl-N-(4-hydroxybutyl)nitrosamine-induced Rat Urinary Bladder Carcinogenesis

Katsunori Uchida, Jerome Seidenfeld, Alfred Rademaker, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1989) 49 (19): 5249–5253.
Published: 01 October 1989
View articletitled, Inhibitory Action of α-Difluoromethylornithine on N-Butyl-N-(4-hydroxybutyl)nitrosamine-induced Rat Urinary Bladder Carcinogenesis
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Journal Articles

Identification of Epidermal Growth Factor as a Component of the Rat Urinary Bladder Tumor-enhancing Urinary Fractions

Yoshiaki Yura, Osamu Hayashi, Mary Kelly, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1989) 49 (6): 1548–1553.
Published: 01 March 1989
View articletitled, Identification of Epidermal Growth Factor as a Component of the Rat Urinary Bladder Tumor-enhancing Urinary Fractions
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Journal Articles

Conversion from Low Grade to High Grade of Rat Urinary Bladder Carcinomas

Shoji Samma, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1988) 48 (5): 1265–1269.
Published: 01 March 1988
View articletitled, Conversion from Low Grade to High Grade of Rat Urinary Bladder Carcinomas
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Journal Articles

Inhibition of N-Butyl-N-(4-hydroxybutyl)nitrosamine-induced Rat Urinary Bladder Carcinogenesis by α-Difluoromethylornithine

Yukio Homma, Tadao Kakizoe, Shoji Samma, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1987) 47 (23): 6176–6179.
Published: 01 December 1987
View articletitled, Inhibition of N-Butyl-N-(4-hydroxybutyl)nitrosamine-induced Rat Urinary Bladder Carcinogenesis by α-Difluoromethylornithine
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Journal Articles

Transferrin as a Growth Factor for Rat Bladder Carcinoma Cells in Culture

Osamu Hayashi, Sumio Noguchi, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1987) 47 (17): 4560–4564.
Published: 01 September 1987
View articletitled, Transferrin as a Growth Factor for Rat Bladder Carcinoma Cells in Culture
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Journal Articles

Inhibition of Carcinogenesis by α-Difluoromethylornithine in Heterotopically Transplanted Rat Urinary Bladders

Yukio Homma, Seiichiro Ozono, Isao Numata, Jerome Seidenfeld, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1985) 45 (2): 648–652.
Published: 01 February 1985
View articletitled, Inhibition of Carcinogenesis by α-Difluoromethylornithine in Heterotopically Transplanted Rat Urinary Bladders
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Journal Articles

Irreversibility of Low-Grade Superficial Rat Bladder Carcinomas

Seiichiro Ozono, Isao Numata, Ryoichi Oyasu
Journal: Cancer Research
Cancer Res (1984) 44 (10): 4260–4262.
Published: 01 October 1984
View articletitled, Irreversibility of Low-Grade Superficial Rat Bladder Carcinomas
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