title: Cytokines expression induced by Ganoderma sinensis fungal immunomodulatory proteins (FIP-gsi) in mouse spleen cells.
abstract: Ganoderma sinensis fungal immunomodulatory protein (FIP-gsi) was a new member of FIPs family. Based on the cloning of FIP-gsi gene from G. sinensis, this paper reported that FIP-gsi gene was expressed in Escherichia coli expression system. Then, the recombinant proteins were analyzed by the sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and matrix-assisted laser desorption/ionization mass spectrometry (MALDI-MS). Finally, the immunomodulatory activity was examined by inducing cytokine genes expression. The results showed that the recombinant FIP-gsi protein could be expressed in E. coli and got the yield of about 25% of the soluble form in the total soluble protein. The FIP-gsi protein was composed of 111 amino acids, and the sequence of homologous rate was 88.6% with FIP-glu (LZ-8). Furthermore, it could enhance the levels of interleukin (IL)-2, IL-3, IL-4, interferon gamma, tumor necrosis factor alpha, and IL-2 receptor (IL-2R) in mouse spleen cells.
authors.affiliation: Plant Biotechnology Research Center, Shanghai Key Laboratory of Agrobiotechnology, School of Agriculture and Biology, Fudan-SJTU-Nottingham Plant Biotechnology R&D Center, Shanghai Jiao Tong University, Shanghai 200240, People's Republic of China.
authors.forename: Qizhang
authors.initials: Q
authors.lastname: Li
authors.forename: Xuefei
authors.initials: X
authors.lastname: Wang
authors.forename: Yiyuan
authors.initials: Y
authors.lastname: Chen
authors.forename: Juan
authors.initials: J
authors.lastname: Lin
authors.forename: Xuanwei
authors.initials: X
authors.lastname: Zhou
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D016207:Cytokines / Q000235:genetics* / Q000378:metabolism; D004591:Electrophoresis, Polyacrylamide Gel; D004926:Escherichia coli / Q000378:metabolism; D005656:Fungal Proteins / Q000737:chemistry / Q000302:isolation & purification / Q000494:pharmacology*; D032902:Ganoderma / Q000737:chemistry*; D005786:Gene Expression Regulation / Q000187:drug effects; D005822:Genetic Vectors / Q000235:genetics; D007155:Immunologic Factors / Q000737:chemistry / Q000494:pharmacology*; D051379:Mice; D008969:Molecular Sequence Data; D010455:Peptides / Q000737:chemistry; D011994:Recombinant Proteins / Q000302:isolation & purification / Q000378:metabolism; D016415:Sequence Alignment; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013154:Spleen / Q000166:cytology* / Q000187:drug effects / Q000378:metabolism*
chemical_list: D016207:Cytokines; D005656:Fungal Proteins; D007155:Immunologic Factors; D010455:Peptides; D011994:Recombinant Proteins