Otsuka Pharmaceutical Company, Limited

Kiyoshi Ishii

Satoru Nakai

Yoshikatsu Hirai

Kazuyoshi Kawai

Yasuo Yanagihara

Mayumi Kaneta

Setsuko Takegata

Yeong-Man Hong

Yoshikazu Kikumoto

A homogeneous interleukin 1.beta. (IL-1.beta.), its derivative having a modified amino acid sequence of IL-1.beta., a gene coding for said derivative, medical composition comprising said derivative as a pharmaceutically effective component and a medicinal use of homogeneous IL-1.beta. and the derivative.

IL-1.beta. and derivatives thereof and drugs

DNA encoding interleukin IL-1.beta. mutant

Methods are disclosed for promoting production of colony stimulating factor and inhibiting growth of Meth A tumor cells comprising administering a pharmaceutically effective amount of modified IL-1.alpha. to a subject.

Methods of use of IL-1.alpha.

Methods for stimulating immunity, inhibiting tumor growth, promoting production of a cytokine, and preventing or inhibiting radiation injury by administration of Interleukin-1.alpha. (IL-1.alpha.) derivatives, are disclosed.

Method and use of IL-1.alpha.

An interleukin-1.alpha. (IL-1.alpha.) derivative having a modified amino acid sequence of IL-1.alpha., a gene coding for said derivative, medicinal composition comprising said derivative as a pharmaceutically effective component and a medicinal use of homogeneous IL-1.alpha..

Gene that encodes for polypeptides of IL-1.alpha.

IL-1.alpha. derivatives and drugs

This invention provides an antitumor active substance GIF, a process for preparing the same, an antitumor composition containing the substance, a gene coding for GIF, a vector containing the gene and a recombinant microorganism, the substance GIF comprises as its component protein polypeptide A of the following primary structure. ##STR1## wherein X is Cys or Ser and Z is H or a peptide represented by the amino acid sequence ##STR2## or a peptide having the above sequence wherein at least one amino acid is removed from the N terminal or an amino acid.

Growing community of inventors

Tokushima, Japan

Kiyoshi Ishii