A novel replication-competent vaccinia vector MVTT is superior to MVA for inducing high levels of neutralizing antibody via mucosal vaccination.
Identifieur interne : 002B95 ( Main/Exploration ); précédent : 002B94; suivant : 002B96A novel replication-competent vaccinia vector MVTT is superior to MVA for inducing high levels of neutralizing antibody via mucosal vaccination.
Auteurs : Xiaoxing Huang [République populaire de Chine] ; Bin Lu ; Wenbo Yu ; Qing Fang ; Li Liu ; Ke Zhuang ; Tingting Shen ; Haibo Wang ; Po Tian ; Linqi Zhang ; Zhiwei ChenSource :
- PloS one [ 1932-6203 ] ; 2009.
Descripteurs français
- KwdFr :
- MESH :
- génétique : Vaccins atténués, Virus de la vaccine.
- métabolisme : Virus du SRAS.
- Animaux, Anticorps antiviraux, Femelle, Génomique, Souris, Souris de lignée BALB C, Système immunitaire, Tests de neutralisation, Vaccin antivariolique, Vaccination, Vaccins, Vecteurs génétiques.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Antibodies, Viral, Smallpox Vaccine.
- chemical , genetics : Vaccines, Attenuated.
- genetics : Vaccinia virus.
- metabolism : SARS Virus.
- Animals, Female, Genetic Vectors, Genomics, Immune System, Mice, Mice, Inbred BALB C, Neutralization Tests, Vaccination, Vaccines.
Abstract
Mucosal vaccination offers great advantage for inducing protective immune response to prevent viral transmission and dissemination. Here, we report our findings of a head-to-head comparison of two viral vectors modified vaccinia Ankara (MVA) and a novel replication-competent modified vaccinia Tian Tan (MVTT) for inducing neutralizing antibodies (Nabs) via intramuscular and mucosal vaccinations in mice. MVTT is an attenuated variant of the wild-type VTT, which was historically used as a smallpox vaccine for millions of Chinese people. The spike glycoprotein (S) of SARS-CoV was used as the test antigen after the S gene was constructed in the identical genomic location of two vectors to generate vaccine candidates MVTT-S and MVA-S. Using identical doses, MVTT-S induced lower levels ( approximately 2-3-fold) of anti- SARS-CoV neutralizing antibodies (Nabs) than MVA-S through intramuscular inoculation. MVTT-S, however, was capable of inducing consistently 20-to-100-fold higher levels of Nabs than MVA-S when inoculated via either intranasal or intraoral routes. These levels of MVTT-S-induced Nab responses were substantially (approximately 10-fold) higher than that induced via the intramuscular route in the same experiments. Moreover, pre-exposure to the wild-type VTT via intranasal or intraoral route impaired the Nab response via the same routes of MVTT-S vaccination probably due to the pre-existing anti-VTT Nab response. The efficacy of intranasal or intraoral vaccination, however, was still 20-to-50-fold better than intramuscular inoculation despite the subcutaneous pre-exposure to wild-type VTT. Our data have implications for people who maintain low levels of anti-VTT Nabs after historical smallpox vaccination. MVTT is therefore an attractive live viral vector for mucosal vaccination.
DOI: 10.1371/journal.pone.0004180
PubMed: 19159014
Affiliations:
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College of Life Sciences, Wuhan University, Hubei</wicri:regionArea><orgName type="university">Université de Wuhan</orgName><placeName><settlement type="city">Wuhan</settlement><region type="province">Hubei</region></placeName></affiliation></author><author><name sortKey="Lu, Bin" sort="Lu, Bin" uniqKey="Lu B" first="Bin" last="Lu">Bin Lu</name></author><author><name sortKey="Yu, Wenbo" sort="Yu, Wenbo" uniqKey="Yu W" first="Wenbo" last="Yu">Wenbo Yu</name></author><author><name sortKey="Fang, Qing" sort="Fang, Qing" uniqKey="Fang Q" first="Qing" last="Fang">Qing Fang</name></author><author><name sortKey="Liu, Li" sort="Liu, Li" uniqKey="Liu L" first="Li" last="Liu">Li Liu</name></author><author><name sortKey="Zhuang, Ke" sort="Zhuang, Ke" uniqKey="Zhuang K" first="Ke" last="Zhuang">Ke Zhuang</name></author><author><name sortKey="Shen, Tingting" sort="Shen, Tingting" uniqKey="Shen T" first="Tingting" last="Shen">Tingting Shen</name></author><author><name sortKey="Wang, Haibo" sort="Wang, Haibo" uniqKey="Wang H" first="Haibo" last="Wang">Haibo Wang</name></author><author><name sortKey="Tian, Po" sort="Tian, Po" uniqKey="Tian P" first="Po" last="Tian">Po Tian</name></author><author><name sortKey="Zhang, Linqi" sort="Zhang, Linqi" uniqKey="Zhang L" first="Linqi" last="Zhang">Linqi Zhang</name></author><author><name sortKey="Chen, Zhiwei" sort="Chen, Zhiwei" uniqKey="Chen Z" first="Zhiwei" last="Chen">Zhiwei Chen</name></author></analytic><series><title level="j">PloS one</title><idno type="eISSN">1932-6203</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Antibodies, Viral (chemistry)</term><term>Female</term><term>Genetic Vectors</term><term>Genomics</term><term>Immune System</term><term>Mice</term><term>Mice, Inbred BALB C</term><term>Neutralization Tests</term><term>SARS Virus 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antivariolique</term><term>Vaccination</term><term>Vaccins</term><term>Vecteurs génétiques</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Mucosal vaccination offers great advantage for inducing protective immune response to prevent viral transmission and dissemination. Here, we report our findings of a head-to-head comparison of two viral vectors modified vaccinia Ankara (MVA) and a novel replication-competent modified vaccinia Tian Tan (MVTT) for inducing neutralizing antibodies (Nabs) via intramuscular and mucosal vaccinations in mice. MVTT is an attenuated variant of the wild-type VTT, which was historically used as a smallpox vaccine for millions of Chinese people. The spike glycoprotein (S) of SARS-CoV was used as the test antigen after the S gene was constructed in the identical genomic location of two vectors to generate vaccine candidates MVTT-S and MVA-S. Using identical doses, MVTT-S induced lower levels ( approximately 2-3-fold) of anti- SARS-CoV neutralizing antibodies (Nabs) than MVA-S through intramuscular inoculation. MVTT-S, however, was capable of inducing consistently 20-to-100-fold higher levels of Nabs than MVA-S when inoculated via either intranasal or intraoral routes. These levels of MVTT-S-induced Nab responses were substantially (approximately 10-fold) higher than that induced via the intramuscular route in the same experiments. Moreover, pre-exposure to the wild-type VTT via intranasal or intraoral route impaired the Nab response via the same routes of MVTT-S vaccination probably due to the pre-existing anti-VTT Nab response. The efficacy of intranasal or intraoral vaccination, however, was still 20-to-50-fold better than intramuscular inoculation despite the subcutaneous pre-exposure to wild-type VTT. Our data have implications for people who maintain low levels of anti-VTT Nabs after historical smallpox vaccination. MVTT is therefore an attractive live viral vector for mucosal vaccination.</div></front></TEI><affiliations><list><country><li>République populaire de Chine</li></country><region><li>Hubei</li></region><settlement><li>Wuhan</li></settlement><orgName><li>Université de Wuhan</li></orgName></list><tree><noCountry><name sortKey="Chen, Zhiwei" sort="Chen, Zhiwei" uniqKey="Chen Z" first="Zhiwei" last="Chen">Zhiwei Chen</name><name sortKey="Fang, Qing" sort="Fang, Qing" uniqKey="Fang Q" first="Qing" last="Fang">Qing Fang</name><name sortKey="Liu, Li" sort="Liu, Li" uniqKey="Liu L" first="Li" last="Liu">Li Liu</name><name sortKey="Lu, Bin" sort="Lu, Bin" uniqKey="Lu B" first="Bin" last="Lu">Bin Lu</name><name sortKey="Shen, Tingting" sort="Shen, Tingting" uniqKey="Shen T" first="Tingting" last="Shen">Tingting Shen</name><name sortKey="Tian, Po" sort="Tian, Po" uniqKey="Tian P" first="Po" last="Tian">Po Tian</name><name sortKey="Wang, Haibo" sort="Wang, Haibo" uniqKey="Wang H" first="Haibo" last="Wang">Haibo Wang</name><name sortKey="Yu, Wenbo" sort="Yu, Wenbo" uniqKey="Yu W" first="Wenbo" last="Yu">Wenbo Yu</name><name sortKey="Zhang, Linqi" sort="Zhang, Linqi" uniqKey="Zhang L" first="Linqi" last="Zhang">Linqi Zhang</name><name sortKey="Zhuang, Ke" sort="Zhuang, Ke" uniqKey="Zhuang K" first="Ke" last="Zhuang">Ke Zhuang</name></noCountry><country name="République populaire de Chine"><region name="Hubei"><name sortKey="Huang, Xiaoxing" sort="Huang, Xiaoxing" uniqKey="Huang X" first="Xiaoxing" last="Huang">Xiaoxing Huang</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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