In vitro study of protein release from AFCo1 and implications in mucosal immunisation

R. Acevedo, Belkis Romeu, C. Zayas, E Gonzalez, M Lastre, J del Campo, A Mullen, Valerie Ferro, O Perez

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Adjuvant Finlay Cochleate 1 (AFCo1) is a Proteoliposome-derived cochleate obtained from Neisseria meningitidis serogroup B. Transformation of proteoliposomes into AFCo1 potentiates the immune response on Neisseria
antigens when it is administered by intranasal or intragastric (i.g) routes. However, the i.n route has been demonstrated to be more effective. The aim of this work is to evaluate in vitro the protein release from AFCo1, in simulated gastric fluid (SGF) or simulated nasal fluid (SNF) using a microdissolution test and to provide support for the results found when AFCo1 was administered by i.g or i.n routes in BALB/c mice. Results showed that dilution of AFCo1 in simulated gastric fluid affects the delivery of Neisseria protein antigens because they were released from cochleate structures faster than when simulated nasal fluid was used. In conclusion, conditions simulating gastric environment affect the delivery of protein antigens from AFCo1 and this result could partially explain why i.n administration is more effective in vivo than i.g immunisation.
LanguageEnglish
Number of pages5
JournalVacciMonitor
Volume21
Issue number2
Publication statusPublished - 2012

Fingerprint

Immunization
Stomach
Nose
Serogroup B Neisseria meningitidis
Neisseria
Antigens
Proteins
In Vitro Techniques
proteoliposomes

Keywords

  • ucosal immunisation
  • in vitro study
  • proteins
  • cochleate
  • neisseria
  • proteoliposome
  • adjuvant

Cite this

Acevedo, R., Romeu, B., Zayas, C., Gonzalez, E., Lastre, M., del Campo, J., ... Perez, O. (2012). In vitro study of protein release from AFCo1 and implications in mucosal immunisation. VacciMonitor, 21(2).
Acevedo, R. ; Romeu, Belkis ; Zayas, C. ; Gonzalez, E ; Lastre, M ; del Campo, J ; Mullen, A ; Ferro, Valerie ; Perez, O. / In vitro study of protein release from AFCo1 and implications in mucosal immunisation. In: VacciMonitor. 2012 ; Vol. 21, No. 2.
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Acevedo, R, Romeu, B, Zayas, C, Gonzalez, E, Lastre, M, del Campo, J, Mullen, A, Ferro, V & Perez, O 2012, 'In vitro study of protein release from AFCo1 and implications in mucosal immunisation' VacciMonitor, vol. 21, no. 2.

In vitro study of protein release from AFCo1 and implications in mucosal immunisation. / Acevedo, R.; Romeu, Belkis ; Zayas, C.; Gonzalez, E; Lastre, M; del Campo, J; Mullen, A; Ferro, Valerie; Perez, O.

In: VacciMonitor, Vol. 21, No. 2, 2012.

Research output: Contribution to journalArticle

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AU - Acevedo, R.

AU - Romeu, Belkis

AU - Zayas, C.

AU - Gonzalez, E

AU - Lastre, M

AU - del Campo, J

AU - Mullen, A

AU - Ferro, Valerie

AU - Perez, O

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AB - Adjuvant Finlay Cochleate 1 (AFCo1) is a Proteoliposome-derived cochleate obtained from Neisseria meningitidis serogroup B. Transformation of proteoliposomes into AFCo1 potentiates the immune response on Neisseriaantigens when it is administered by intranasal or intragastric (i.g) routes. However, the i.n route has been demonstrated to be more effective. The aim of this work is to evaluate in vitro the protein release from AFCo1, in simulated gastric fluid (SGF) or simulated nasal fluid (SNF) using a microdissolution test and to provide support for the results found when AFCo1 was administered by i.g or i.n routes in BALB/c mice. Results showed that dilution of AFCo1 in simulated gastric fluid affects the delivery of Neisseria protein antigens because they were released from cochleate structures faster than when simulated nasal fluid was used. In conclusion, conditions simulating gastric environment affect the delivery of protein antigens from AFCo1 and this result could partially explain why i.n administration is more effective in vivo than i.g immunisation.

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Acevedo R, Romeu B, Zayas C, Gonzalez E, Lastre M, del Campo J et al. In vitro study of protein release from AFCo1 and implications in mucosal immunisation. VacciMonitor. 2012;21(2).