Highly soluble and stable ‘insertion domain’ of the capsid penton base protein provides complete protection against infections caused by fowl adenoviruses
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Highly soluble and stable ‘insertion domain’ of the capsid penton base protein provides complete protection against infections caused by fowl adenoviruses. / Tufail, Soban; Shah, Majid Ali; Asif, Tayyab Ali; Ullah, Raheem; Shehzad, Aamir; Ismat, Fouzia; Shah, Muhammad Salahuddin; Habib, Mudasser; Calisto, Bárbara M.; Mirza, Osman; Iqbal, Mazhar; Rahman, Moazur.
In: Microbial Pathogenesis, Vol. 173, No. Part A, 105835, 2022.Research output: Contribution to journal › Journal article › Research › peer-review
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T1 - Highly soluble and stable ‘insertion domain’ of the capsid penton base protein provides complete protection against infections caused by fowl adenoviruses
AU - Tufail, Soban
AU - Shah, Majid Ali
AU - Asif, Tayyab Ali
AU - Ullah, Raheem
AU - Shehzad, Aamir
AU - Ismat, Fouzia
AU - Shah, Muhammad Salahuddin
AU - Habib, Mudasser
AU - Calisto, Bárbara M.
AU - Mirza, Osman
AU - Iqbal, Mazhar
AU - Rahman, Moazur
PY - 2022
Y1 - 2022
N2 - In the current study, we have evaluated the protective efficacy of the ‘insertion domain’ which is commonly found in the capsid penton base protein of many adenoviruses. Using the ‘insertion domain’ of the penton base protein of a representative fowl adenovirus, fowl adenovirus serotype 4 (FAdV-4), we find that the ‘insertion domain’ can readily be expressed in a soluble form in the bacterial system, and can be purified in sufficient quantities through simple chromatographic methods. We demonstrate that the ‘insertion domain’, when employed as a subunit vaccine candidate, provides complete protection against hydropericardium syndrome, caused by FAdV-4, in chickens. The data presented here indicate that the protein, adjuvanted with Montanide™ ISA71 VG, provides complete protection in chickens against a lethal FAdV-4 challenge after administration of two doses (100 μg of the protein per dose) two weeks apart (the first dose at the 7th day of life and a booster dose at the age of 21 days). Furthermore, the purified protein can be stored at low temperatures without any observable loss in the protein integrity up to one year, tested so far. Due to the conserved nature of the ‘insertion domain’ across the penton base protein of fowl adenoviruses, it is suggested that homologous insertion domains could be employed as highly stable and cost-effective subunit vaccine candidates against infections caused by respective fowl adenoviruses.
AB - In the current study, we have evaluated the protective efficacy of the ‘insertion domain’ which is commonly found in the capsid penton base protein of many adenoviruses. Using the ‘insertion domain’ of the penton base protein of a representative fowl adenovirus, fowl adenovirus serotype 4 (FAdV-4), we find that the ‘insertion domain’ can readily be expressed in a soluble form in the bacterial system, and can be purified in sufficient quantities through simple chromatographic methods. We demonstrate that the ‘insertion domain’, when employed as a subunit vaccine candidate, provides complete protection against hydropericardium syndrome, caused by FAdV-4, in chickens. The data presented here indicate that the protein, adjuvanted with Montanide™ ISA71 VG, provides complete protection in chickens against a lethal FAdV-4 challenge after administration of two doses (100 μg of the protein per dose) two weeks apart (the first dose at the 7th day of life and a booster dose at the age of 21 days). Furthermore, the purified protein can be stored at low temperatures without any observable loss in the protein integrity up to one year, tested so far. Due to the conserved nature of the ‘insertion domain’ across the penton base protein of fowl adenoviruses, it is suggested that homologous insertion domains could be employed as highly stable and cost-effective subunit vaccine candidates against infections caused by respective fowl adenoviruses.
U2 - 10.1016/j.micpath.2022.105835
DO - 10.1016/j.micpath.2022.105835
M3 - Journal article
C2 - 36265735
VL - 173
JO - Microbial Pathogenesis
JF - Microbial Pathogenesis
SN - 0882-4010
IS - Part A
M1 - 105835
ER -
ID: 322952582