PubMed=3972471; DOI=10.1002/ijc.2910350221
Masayoshi Namba, Koji Nishitani, Fuminori Hyodoh, Fujiko Fukushima, Tetsuo Kimoto;
Neoplastic transformation of human diploid fibroblasts (KMST-6) by treatment with 60Co gamma rays.
Int. J. Cancer 35:275-280(1985)

PubMed=3140712
Masayoshi Namba, Koji Nishitani, Fujiko Fukushima, Tetsuo Kimoto;
Multistep carcinogenesis of normal human fibroblasts. Human fibroblasts immortalized by repeated treatment with Co-60 gamma rays were transformed into tumorigenic cells with Ha-ras oncogenes.
Anticancer Res. 8:947-958(1988)

DOI=10.11418/jtca1981.12.4_313
Masayoshi Namba, Li-Yan Bai, Yoshio Kano, Shigetaka Sugihara, Masahiro Miyazaki;
Multistep malignant transformation of human cells: immortalization of human fibroblasts by treatment with 60Co gamma rays and 4-nitroquinoline 1-oxide, and their malignant transformation with the ras oncogene.
Tissue Cult. Res. Commun. 12:313-318(1993)

PubMed=8790940; DOI=10.1247/csf.21.111
Koichiro Mihara, Mikio Iijima, Tadashi Kondo, Masayoshi Namba;
Selective expression of mutated p53 in human cells immortalized with either 4-nitroquinoline 1-oxide or 60Co gamma rays.
Cell Struct. Funct. 21:111-116(1996)

PubMed=9290701; DOI=10.1002/(SICI)1098-2744(199708)19:4<243::AID-MC5>3.0.CO;2-D
Li-Qun Jia, Motonobu Osada, Chikashi Ishioka, Makio Gamo, Shuntaro Ikawa, Takao Suzuki, Hideki Shimodaira, Tomohito Niitani, Toshio Kudo, Mitoshi Akiyama, Narimiti Kimura ...Show all 18 authors... , Mitsuyoshi Matsuo, Hiroshi Mizusawa, Noriho Tanaka, Hideki Koyama, Masayoshi Namba, Ryunosuke Kanamaru, Toshio Kuroki; Show fewer authors
Screening the p53 status of human cell lines using a yeast functional assay.
Mol. Carcinog. 19:243-253(1997)