論文

査読有り 本文へのリンクあり 国際誌
2016年12月22日

Passive immunization with anti-ActA and anti-listeriolysin O antibodies protects against Listeria monocytogenes infection in mice

Scientific Reports
  • Krisana Asano
  • ,
  • Hiroshi Sashinami
  • ,
  • Arihiro Osanai
  • ,
  • Shouhei Hirose
  • ,
  • Hisaya K. Ono
  • ,
  • Kouji Narita
  • ,
  • Dong Liang Hu
  • ,
  • Akio Nakane

6
開始ページ
39628
終了ページ
39628
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/srep39628

© The Author(s) 2016. Listeria monocytogenes is an intracellular pathogen that causes listeriosis. Due to its intracellular niche, L. monocytogenes has evolved to limit immune recognition and response to infection. Antibodies that are slightly induced by listerial infection are completely unable to protect re-infection of L. monocytogenes. Thus, a role of antibody on the protective effect against L. monocytogenes infection has been neglected for a long time. In the present study, we reported that passive immunization with an excessive amount of antibodies against ActA and listeriolysin O (LLO) attenuates severity of L. monocytogenes infection. Combination of these antibodies improved survival of L. monocytogenes infected mice. Bacterial load in spleen and liver of listerial infected mice and infected RAW264.7 cells were significantly reduced by administration of anti-ActA and anti-LLO antibodies. In addition, anti-LLO antibody neutralized LLO activity and inhibited the bacterial escape from the lysosomal compartments. Moreover, anti-ActA antibody neutralized ActA activity and suppressed actin tail formation and cell-to-cell spread. Thus, our studies reveal that passive immunization with the excessive amount of anti-ActA and -LLO antibodies has potential to provide the protective effect against listerial infection.

リンク情報
DOI
https://doi.org/10.1038/srep39628
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/28004800
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5177876
Scopus
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85006892958&origin=inward 本文へのリンクあり
Scopus Citedby
https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=85006892958&origin=inward
ID情報
  • DOI : 10.1038/srep39628
  • eISSN : 2045-2322
  • PubMed ID : 28004800
  • PubMed Central 記事ID : PMC5177876
  • SCOPUS ID : 85006892958

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