title: Production of bioactive human granulocyte-colony stimulating factor in transgenic rice cell suspension cultures.
abstract: Human granulocyte-colony stimulating factor (hG-CSF), a human cytokine, was expressed in transgenic rice cell suspension culture. The hG-CSF gene was cloned into the rice expression vector containing the promoter, signal peptide, and terminator derived from a rice alpha-amylase gene Amy3D. Using particle bombardment-mediated transformation, hG-CSF gene was introduced into the calli of rice (Oryza sativa) cultivar Dong-jin. Expression of the hG-CSF gene was confirmed by ELISA and Northern blot analysis. The amount of recombinant hG-CSF accumulated in culture medium from transgenic rice cell suspension culture on the sugar starvation was determined by time series ELISA. Biological activity of the plant derived hG-CSF was confirmed by measuring the proliferation of the AML-193 cells, and was similar to that of the commercial Escherichia coli-derived hG-CSF. In this paper, we discuss the attractive attributes of using rice cell suspension system for the expression of therapeutic recombinant hG-CSF.
authors.affiliation: Division of Biological Sciences and Research Institute for Bioactive Materials, Chonbuk National University, Jeonju 561-756, Republic of Korea.
authors.forename: Shin-Young
authors.initials: SY
authors.lastname: Hong
authors.forename: Tae-Ho
authors.initials: TH
authors.lastname: Kwon
authors.forename: Yong-Suk
authors.initials: YS
authors.lastname: Jang
authors.forename: Soo-Ho
authors.initials: SH
authors.lastname: Kim
authors.forename: Moon-Sik
authors.initials: MS
authors.lastname: Yang
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002478:Cells, Cultured; D003001:Cloning, Molecular; D016179:Granulocyte Colony-Stimulating Factor / Q000096:biosynthesis* / Q000235:genetics* / Q000378:metabolism; D006801:Humans; D008969:Molecular Sequence Data; D012275:Oryza / Q000166:cytology* / Q000235:genetics*; D030821:Plants, Genetically Modified; D011994:Recombinant Proteins / Q000096:biosynthesis / Q000235:genetics / Q000378:metabolism
chemical_list: D011994:Recombinant Proteins; D016179:Granulocyte Colony-Stimulating Factor