Naomi van Vlies

Dr. Naomi van Vlies


Research Focus & Metrics

Academic Career Length

10Years (2017-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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30 July 2020 in Vaccines
Verified
Journal Article
Open access
PDF file
RRRené Raeven
René Raeven
NVNaomi van Vlies
Naomi van Vlies
MSMerijn L. M. Salverda
Merijn L. M. Salverda
LMLarissa van der Maas
Larissa van der Maas
JUJoost P. Uittenbogaard
Joost P. Uittenbogaard
AAArno A. J. van der Ark
Arno A. J. van der Ark
The limited protective immunity induced by acellular pertussis vaccines demands development of novel vaccines that induce broader and longer-lived immunity. In this study, we investigated the protective capacity of outer membrane vesicle pertussis vaccines (omvPV) with different antigenic composition in mice to gain insight into which antigens contribute to protection. We showed that total depletion of virulence factors (bvg(-) mode) in omvPV led to diminished protection despite the presence of high antibody levels. Antibody profiling revealed overlap in humoral responses induced by vaccines in bvg(-) and bvg(+) mode, but the potentially protective responses in the bvg(+) vaccine were mainly directed against virulence-associated outer membrane proteins (virOMPs) such as BrkA and Vag8. However, deletion of either BrkA or Vag8 in our outer membrane vesicle vaccines did not affect the level of protection. In addition, the vaccine-induced immunity profile, which encompasses broad antibody and mixed T-helper 1, 2 and 17 responses, was not changed. We conclude that the presence of multiple virOMPs in omvPV is crucial for protection against Bordetella pertussis. This protective immunity does not depend on individual proteins, as their absence or low abundance can be compensated for by other virOMPs.


1 September 2017 in Molecular Genetics and Metabolism
Verified
Journal Article
Closed access
OMOlga Meijer
Olga Meijer
HBH. Te Brinke
H. Te Brinke
ROR. Ofman
R. Ofman
LIL. Ijlst
L. Ijlst
FWFrits Wijburg
Frits Wijburg
NVNaomi van Vlies
Naomi van Vlies