Background
Yoshida Tomizo was born on February 10, 1903 in Asakawa, Fukushima, Japan.
富三 吉田
Yoshida Tomizo was born on February 10, 1903 in Asakawa, Fukushima, Japan.
After graduating from Tokyo University in 1927 studied pathology, with stress on cancer under Dr. Takaoki Sasaki. In 1929 he moved to the Sasaki Institute to work on chemical-induced carcinogenesis with Takaoki Sasaki, before he went to Germany to study pathology in 1935.
After returning to his homeland, Yoshida served as a professor of pathology at Nagasaki University from 1938 to 1944, Tohoku University from 1944 to 1952, before being appointed as a professor of pathology at the Faculty of Medicine, University of Tokyo in 1952, where he became a dean in 1958. In addition, he became a director at the Sasaki Institute in 1953 and at the Cancer Institute, Japanese Foundation for Cancer Research in 1963.
Yoshida died in 1973 at the age of 70.
In the 1930s Yoshida and Sasaki showed the induction of liver cancer in rats by Ortho-Aminoazotoluene. Since that time, a large amount of data has confirmed the carcinogenic activity of Azo dyes.
In 1943, Yoshida found a cancer cell line, so-called Yoshida Sarcoma, and experimentally proved that cancer is generated from cancer cells. His findings opened the way of cancer research in terms of cells, and developed biomedical research on chemotherapy.
Yoshida received the Imperial Prize of the Japan Academy twice (1936 and 1953) as well as the Robert Koch Gold Medal (1963).
Married Kimiko Yoshida, March 6, 1931. Children: Naoya, Yasuko (Mistress Ichiro Anzai), Syohei, Kazuko (Mistress Tadashi Sugano).
