1
|
Arshad R, Meng Y, Qiu N, Geng F, Mine Y, Keast R, Zhu C. Phosphoproteomic analysis of duck egg yolk provides novel insights into its characteristics and biofunctions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:1165-1173. [PMID: 34329491 DOI: 10.1002/jsfa.11453] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 07/07/2021] [Accepted: 07/30/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND Although the importance of phosphorylation in the function of proteins is known, investigation of the protein phosphorylation of duck egg yolk (DEY) is still very limited. This study aimed to conduct a detailed phosphoproteomic study of DEY using immobilized metal affinity chromatography and ultra-high liquid chromatography tandem mass spectrometry. RESULTS A total of 253 phosphorylation sites assigned to 66 phosphoproteins were identified in DEY, of which VTG-1, VTG-2, and fibrinogen alpha chain were found to be the highly phosphorylated proteins in DEY. The biological functions of the identified phosphoproteins were illuminated through gene ontology analysis, which showed that they were mainly involved in binding, catalytic, immune response, and metabolic activity. S-X-E and S-X-S were found to be the most conserved serine motifs of phosphorylation in DEY. The comparison of DEY phosphoproteins with those of chicken egg yolk (CEY) revealed that differences mostly involved molecular functions and biological processes. The comparison also revealed a higher phosphorylation level in DEY proteins. CONCLUSION The higher phosphorylation level in DEY proteins than that in CEY proteins are supposed to help enhance duck growth performance and biological activities (e.g. antibacterial and antioxidant ability) for better adapting the humid environment the duck lived. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Rida Arshad
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Yaqi Meng
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Ning Qiu
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, College of Food Science and Technology, Huazhong Agricultural University, Wuhan, P. R. China
| | - Fang Geng
- Meat Processing Key Laboratory of Sichuan Province, College of Pharmacy and Biological Engineering, Chengdu University, Chengdu, P. R. China
| | - Yoshinori Mine
- Department of Food Science, University of Guelph, Guelph, ON, Canada
| | - Russell Keast
- CASS Food Research Centre, School of Exercise and Nutrition Sciences, Deakin University, Burwood, VIC, Australia
| | - Chunxia Zhu
- Center of Stomatology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P. R. China
| |
Collapse
|
2
|
Wang X, Li L, Shang H, Zhou F, Wang C, Zhang S, Gao P, Guo P, Zhu R, Sun Z, Wei K. Effects of duck circovirus on immune function and secondary infection of Avian Pathogenic Escherichia coli. Poult Sci 2022; 101:101799. [PMID: 35366422 PMCID: PMC8971308 DOI: 10.1016/j.psj.2022.101799] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/09/2022] [Accepted: 02/13/2022] [Indexed: 02/03/2023] Open
Abstract
Duck circovirus (DuCV) infection occurs frequently in ducks in China and is generally believed to lead to immunosuppression and secondary infection, though there has been a lack of detailed research and direct evidence. In this study, one-day-old Cherry Valley ducklings were artificially infected with DuCV alone and co-infected with DuCV and Avian Pathogenic Escherichia coli (APEC). The immune indexes at 32 d old were systematically monitored, including immune organ weight, lymphocyte transformation rate, IL-10, IL-12, soluble CD4 (sCD4), soluble CD8 (sCD8), IFN-γ, viral loads in each organ, APEC colonization, and so on. The results showed the development of immune organs in ducklings was affected, resulting in a decrease in the lymphocyte transformation rate (LTR), IL-12, sCD4, sCD8, IFN-γ and an increase in IL-10 content at 8 to 32 d postinfection (dpi). In the detection of virus loads in some organs, it was found that 8 dpi, DuCV existed stably in various organs, suggesting the importance of preventing and controlling the virus in the early stage of culture. The results of exploring the DuCV infection that shows some influence on secondary infection by APEC. The results showed that DuCV infection could significantly enhance the pathogenicity of APEC and the colonization ability of APEC in vivo. DuCV can induce more serious APEC infection in 24 dpi than in 14 dpi. Based on the above results, it can be concluded that DuCV infection will affect the immune system, cause immunosuppression, and lead to more serious secondary infection.
Collapse
|
4
|
Zhaolong L, Guanghua F, Zhihua F, Jianhua C, Shaohua S, Rongchang L, Longfei C, Hongmei C, Chunhe W, Yu H. Evaluation of a novel inactivated vaccine against duck circovirus in muscovy ducks. Vet Microbiol 2019; 241:108574. [PMID: 31928707 DOI: 10.1016/j.vetmic.2019.108574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Revised: 12/17/2019] [Accepted: 12/30/2019] [Indexed: 11/16/2022]
Abstract
Duck circovirus (DuCV), an immunosuppressive pathogen, causes serious damage to waterfowls worldwide. A highly efficient vaccine would play a crucial role in preventing DuCV infections in the waterfowl breeding industry. However, to date, there is a dearth of commercial vaccines owing to the lack of a cell culture system for propagating the requisite virus amounts in vitro. In this study, we isolated DuCVs from Muscovy ducks, helped them proliferate using peripheral blood mononuclear cells (PBMCs), and developed an inactivated vaccine. Muscovy ducks vaccinated with the inactivated vaccine had higher neutralizing antibody titers than the control ducks and higher protection in the challenge experiment (as assessed by weight measurement). Moreover, the inactivated vaccine did not cause feather abnormalities, growth repression, and dwarf syndrome; likewise, lesions and lymphocyte apoptosis in the bursa of Fabricius, spleen, and thymus were not observed. Significantly lower virus shedding from the inactivated vaccine was detected up to 42 days post-inoculation. Together, these results suggest that the inactivated DuCV vaccine can induce a high immune response, is relatively safer for Muscovy ducks, and thus it is a protective vaccine candidates against DuCV infection.
Collapse
Affiliation(s)
- Li Zhaolong
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China.
| | - Fu Guanghua
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China; Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention, Fuzhou, Fujian Province, 350013, China; Fujian Animal Disease Control Technology Center, Fuzhou, Fujian Province, 350013, China.
| | - Feng Zhihua
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China.
| | - Chen Jianhua
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China.
| | - Shi Shaohua
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China; Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention, Fuzhou, Fujian Province, 350013, China; Fujian Animal Disease Control Technology Center, Fuzhou, Fujian Province, 350013, China.
| | - Liu Rongchang
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China; Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention, Fuzhou, Fujian Province, 350013, China; Fujian Animal Disease Control Technology Center, Fuzhou, Fujian Province, 350013, China.
| | - Cheng Longfei
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China; Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention, Fuzhou, Fujian Province, 350013, China; Fujian Animal Disease Control Technology Center, Fuzhou, Fujian Province, 350013, China.
| | - Chen Hongmei
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China; Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention, Fuzhou, Fujian Province, 350013, China; Fujian Animal Disease Control Technology Center, Fuzhou, Fujian Province, 350013, China.
| | - Wan Chunhe
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China; Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention, Fuzhou, Fujian Province, 350013, China; Fujian Animal Disease Control Technology Center, Fuzhou, Fujian Province, 350013, China.
| | - Huang Yu
- Institute of Animal Husbandry and Veterinary Medicine, Fujian Academy of Agricultural Sciences, Fuzhou, Fujian Province, 350013, China; Fujian Provincial Key Laboratory for Avian Diseases Control and Prevention, Fuzhou, Fujian Province, 350013, China; Fujian Animal Disease Control Technology Center, Fuzhou, Fujian Province, 350013, China.
| |
Collapse
|
5
|
Wium M, Jonker HI, Olivier AJ, Bellstedt DU, Botes A. DNA Vaccines Against Mycoplasma Elicit Humoral Immune Responses in Ostriches. Front Immunol 2019; 10:1061. [PMID: 31139188 PMCID: PMC6527592 DOI: 10.3389/fimmu.2019.01061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/25/2019] [Indexed: 12/17/2022] Open
Abstract
In ostriches, the population densities resulting from intensive rearing increases susceptibility to pathogens such as mycoplasmas. In addition to good management practices, vaccination offers an attractive alternative for controlling mycoplasma infections in food animals, instead of using antibiotics, which often leave unacceptable residues. The use of live attenuated vaccines, however, carry the concern of reversion to virulence or genetic recombination with field strains. Currently there are no commercially available vaccines against ostrich-infecting mycoplasmas and this study therefore set out to develop and evaluate the use of a DNA vaccine against mycoplasma infections in ostriches using an OppA protein as antigen. To this end, the oppA gene of “Mycoplasma nasistruthionis sp. nov.” str. Ms03 was cloned into two DNA vaccine expression vectors after codon correction by site-directed mutagenesis. Three-months-old ostriches were then vaccinated intramuscularly at different doses followed by a booster vaccination after 6 weeks. The ability of the DNA vaccines to elicit an anti-OppA antibody response was evaluated by ELISA using the recombinant OppA protein of Ms03 as coating antigen. A statistically significant anti-OppA antibody response could be detected after administration of a booster vaccination indicating that the OppA protein was successfully immunogenic. The responses were also both dose and vector dependent. In conclusion, the DNA vaccines were able to elicit an immune response in ostriches and can therefore be viewed as an option for the development of vaccines against mycoplasma infections.
Collapse
Affiliation(s)
- Martha Wium
- Department of Biochemistry, Stellenbosch University, Stellenbosch, South Africa
| | | | | | - Dirk Uwe Bellstedt
- Department of Biochemistry, Stellenbosch University, Stellenbosch, South Africa
| | - Annelise Botes
- Department of Biochemistry, Stellenbosch University, Stellenbosch, South Africa
| |
Collapse
|