1
|
Lin Q, Yang K, He F, Jiang J, Li T, Chen Z, Li R, Chen Y, Li S, Zhao Q, Xia N. Production of Influenza Virus HA1 Harboring Native-Like Epitopes by Pichia pastoris. Appl Biochem Biotechnol 2016; 179:1275-89. [PMID: 27040529 DOI: 10.1007/s12010-016-2064-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Accepted: 03/28/2016] [Indexed: 01/17/2023]
Abstract
The outbreak of the H5N1 highly pathogenic avian influenza which exhibits high variation had brought a serious threat to the safety of humanity. To overcome this high variation, hemagglutinin-based recombinant subunit vaccine with rational design has been considered as a substitute for traditional virion-based vaccine development. Here, we expressed HA1 part of the hemagglutinin protein using the Pichia pastoris expression system and attained a high yield of about 120 mg/L through the use of fed-batch scalable fermentation. HA1 protein in the culture supernatant was purified using two-step ion-exchange chromatography. The resultant HA1 protein was homogeneous in solution in a glycosylated form, as confirmed by endoglycosidase H treatment. Sedimentation velocity tests, silver staining of protein gels, and immunoblotting were used for verification. The native HA1 reacted well with conformational, cross-genotype, neutralizing monoclonal antibodies, whereas a loss of binding activity was noted with the denatured HA1 form. Moreover, the murine anti-HA1 serum exhibited a virus-capture capability in the hemagglutination inhibition assay, which suggests that HA1 harbors native-like epitopes. In conclusion, soluble HA1 was efficiently expressed and purified in this study. The functional glycosylated protein will be an alternative for the development of recombinant protein-based influenza vaccine.
Collapse
Affiliation(s)
- Qingshan Lin
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Kunyu Yang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Fangping He
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Jie Jiang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Tingting Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Zhenqin Chen
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Rui Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Yixin Chen
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| | - Shaowei Li
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China.
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China.
| | - Qinjian Zhao
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China.
| | - Ningshao Xia
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Life Sciences, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
- National Institute of Diagnostics and Vaccine Development in Infectious Disease, School of Public Health, Xiamen University, Xiamen, Fujian, 361002, People's Republic of China
| |
Collapse
|