Mitsui Chemicals, Inc.

Mitsui Petrochemical Industries, Ltd.

Kouichi Matsubara

Yasuhiro Hara

Yukihito Yukimune

Homare Tabata

Yosuke Higashi

Chuzo Suga

Naoto Ohnishi

Method for producing taxane-type diterpenes

Method of producing a taxane-type diterpene and a method of obtaining cultured cells which produce the taxane-type dilterpene at a high rate

This invention relates to a method of producing a taxane-type diterpene(s) wherein tissues or cells of a plant which produces taxane-type diterpene(s) is cultured in the presence of at least one selected from the group consisting of jasmonic acids, compounds containing a heavy metal, complex ions containing a heavy metal, heavy metal ions, amines and antiethylene agents, a method of producing a taxane-type diterpene wherein the tissues or the cells of the plant are cultured by controlling the oxygen concentration in a gas phase in a culture vessel to less than the oxygen concentration in the atmosphere from the initial stage of the culture, or by controlling the dissolved oxygen concentration in a fluid medium which is in contact with the tissue or the cell to less than the saturated dissolved oxygen concentration at that temperature from the initial stage of the culture, a method of producing a taxane-type diterpene wherein the tissue or the cell of the plant is cultured in a culture vessel, while oxygenic gas containing 0.03-10% of carbon dioxide is used as aeration gas to be introduced to the vessel, and a method of obtaining highly productive cultured cells for the taxane-type diterpene wherein cultured cells of the plant which produces the taxane-type diterpene are separated into a plurality of layers according to the difference in their specific gravities, and the cells contained in at least one layer are cultured, then highly productive cultured cells for the taxane-type diterpene are selected from among those cultured cells. The present invention allows industrial production of a taxane-type diterpene such as taxol which is useful as a therapeutic agent for cancer.

Method of producing a taxane-type diterpene and a method of obtaining

Growing community of inventors

Kuga-gun, Japan

Kouichi Matsubara