R
R.J. Leer
Publications - 21
Citations - 3680
R.J. Leer is an academic researcher. The author has contributed to research in topics: Plasmid & Lactobacillus casei. The author has an hindex of 19, co-authored 21 publications receiving 3542 citations.
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Journal ArticleDOI
Complete genome sequence of Lactobacillus plantarum WCFS1
Michiel Kleerebezem,Jos Boekhorst,Richard van Kranenburg,Douwe Molenaar,Oscar P. Kuipers,R.J. Leer,Renato Tarchini,Sander Peters,Hans Sandbrink,Mark Fiers,Willem J. Stiekema,René Klein Lankhorst,Peter A. Bron,Sally M. Hoffer,Masja Nierop Groot,Robert Kerkhoven,Maaike C. de Vries,Björn M. Ursing,Willem M. de Vos,Roland J. Siezen +19 more
TL;DR: The 3,308,274-bp sequence of the chromosome of Lactobacillus plantarum strain WCFS1, a single colony isolate of strain NCIMB8826 that was originally isolated from human saliva, has been determined, and contains 3,052 predicted protein-encoding genes, suggesting that these genes form a lifestyle adaptation region in the chromosome.
Journal ArticleDOI
Strain-dependent induction of cytokine profiles in the gut by orally administered Lactobacillus strains
C.B.M. Maassen,C. van Holten-Neelen,F. Balk,M.-J.H. den Bak-Glashouwer,R.J. Leer,Jon D. Laman,Wim J. A. Boersma,Eric Claassen +7 more
TL;DR: Analysis of mucosal induction of pro- and anti-inflammatory cytokines, IgA-producing plasma cells in the gut, as well as systemic antibody responses against a parenterally administered antigen suggests that rational Lactobacillus strain selection provides a strategy to influence cytokine expression and thereby influence immune responses.
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In situ delivery of passive immunity by lactobacilli producing single-chain antibodies.
Carina Krüger,Yanzhong Hu,Qiang Pan,Harold Marcotte,Anna Hultberg,Dipu Delwar,Philip J. van Dalen,Peter H. Pouwels,R.J. Leer,Charles Kelly,Craig van Dollenweerd,Julian K.-C. Ma,Lennart Hammarström +12 more
TL;DR: Vectors encoding a single-chain Fv (scFv) antibody fragment, which recognizes the streptococcal antigen I/II (SAI/II) adhesion molecule of Streptococcus mutans, were constructed and expressed in Lactobacilli zeae and fused to an E-tag.
Journal ArticleDOI
Lactic acid bacteria as antigen delivery vehicles for oral immunization purposes
Peter H. Pouwels,R.J. Leer,M. Shaw,M.J. Heijne Den Bak-Glashouwer,F.D. Tielen,Egbert Smit,Beatriz Martínez,J. Jore,P.L. Conway +8 more
TL;DR: An overview is given of current research aimed at unravelling the relationship between structure and properties of surface proteins of lactobacilli and in vivo colonization, in particular of species capable of adhering to epithelial cells in vitro.
Journal ArticleDOI
Incompatibility of Lactobacillus Vectors with Replicons Derived from Small Cryptic Lactobacillus Plasmids and Segregational Instability of the Introduced Vectors.
M. Posno,R.J. Leer,N. van Luijk,M. J. F. van Giezen,P. T. H. M. Heuvelmans,B.C. Lokman,P.H. Pouwels +6 more
TL;DR: Lactobacillus vectors are generally rapidly lost when cells are cultivated in the absence of selective pressure, however, pLPE323 is stable in three of four LactOBacillus strains tested so far and is most likely to be explained by the incompatibility of the vectors and resident plasmids.