Abstract:
:Infectious bronchitis virus (IBV) as an avian coronavirus is still posing a persistent and imminent threat to the poultry industry worldwide. Here we report that transfection of Sf9 cells with a single recombinant baculovirus encoding M and S proteins resulted in the assembly of IBV VLPs; this is the first report that S protein plus M protein alone were able to be assembled into VLPs for coronaviruses. We further showed that the generated IBV VLPs could induce humoral immune responses in a level comparable to that of inactivated IBV vaccine, and more importantly the IBV VLPs could elicit significantly higher cellular immune responses than the inactivated IBV vaccine. In summary, the assembly of IBV VLPs with M and S proteins provided a simple strategy for generating VLPs for coronaviruses, and the generated IBV VLPs laid a feasible foundation for the development of an effective vaccine against infection of IBV in the future.
journal_name
Vaccinejournal_title
Vaccineauthors
Liu G,Lv L,Yin L,Li X,Luo D,Liu K,Xue C,Cao Ydoi
10.1016/j.vaccine.2013.09.024subject
Has Abstractpub_date
2013-11-12 00:00:00pages
5524-30issue
47eissn
0264-410Xissn
1873-2518pii
S0264-410X(13)01265-6journal_volume
31pub_type
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