Expression of mSDF-1?/GM-CSF fusion protein and its protective effect on radiotherapy-induced hematopoiesis damages / 中国肿瘤生物治疗杂志
Chinese Journal of Cancer Biotherapy
;
(6)1994.
Artigo
em Chinês
| WPRIM
| ID: wpr-593884
ABSTRACT
Objective:
To express mSDF-1?/GM-CS fusion protein in the Pichia pastoris expression system and investigate its in vivo promoting effects on hematopoiesis function and immune function.Methods:
The mSDF-1?/GM-CS fusion gene was chemically synthesized and was cloned into pichia expression vector;the vector was then transfected into Pichia pastoris expression system.Then the expressed products were detected by SDS-PAGE,Western blotting and purified by ion exchange columns.Rat irradiation model was established by 60Co ? ray and were subcutaneously injected with the fusion protein.The hematopoietic and chemotactic activities of the fusion protein were investigated in vivo.Results:
The expression vector pPIC9K-SDF1-L-GM-CSF was successfully constructed,and mSDF-1?/GM-CS fusion protein was successfully expressed by Pichia pastoris strain GSl15.The molecular weight of the protein was about 32000 D,with a concentration of 78 ng/ml.The numbers of bone marrow mononuclear cells and GM-CFU were significantly increased in rats after subcutaneous injection of the fusion protein(P
Texto completo:
DisponíveL
Índice:
WPRIM (Pacífico Ocidental)
Idioma:
Chinês
Revista:
Chinese Journal of Cancer Biotherapy
Ano de publicação:
1994
Tipo de documento:
Artigo
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