Oklahoma Medical Research Foundation

Yokohama City University

Dai Nakae

Robert A Floyd

Kenneth Hensley

Yutaka Hatanaka

Yashige Kotake

Takeji Takamura

Masato Yoneda

Atsushi Nakajima

Masakazu Takahashi

Koji Fujita

PBN (&agr;-phenyl-tert-butylnitrone), and its derivatives nitrone-based free radical traps, significantly reduce preneoplastic nodule development as well as inhibit hepatocellular carcinoma (HCC) formation at very low levels. The involvement of reactive oxygen species (ROS) in cancer development has been strongly implicated for many years. The involvement of ROS has been strongly implicated in cancer development is a model system where feeding a choline deficiency (CD) diet to rats leads to hepatocellular carcinoma (HCC) development. Administering PBN in the drinking water inhibits HCC formation. Preneoplastic nodule growth in the liver is significantly suppressed by administering PBN, or some of its natural metabolites, in the diet. The effectiveness of PBN in preventing HCC development in the CD liver model is considered due to its prevention of tumor development after the target cells have already been initiated, i.e. genetically changed into tumor cells. Administration of PBN (or its potent derivatives) to humans that may already have microscopic tumor preneoplastic nodules should prevent the eventual frank tumor formation.

Nitrone inhibition of cancer development

Growing community of inventors

Nara, Japan

Dai Nakae