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Cross-Reactive Effects of Vaccines: Heterologous Immunity between Tetanus and Chlamydia

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2020
Cross-Reactive_Effects_pub_2020.pdf (2.359Mb)
Authors
Stojanović, Marijana
Lukić, Ivana
Marinković, Emilija
Kovačević, Ana
Miljković, Radmila
Tobias, Joshua
Schabussova, Irma
Zlatović, Mario
Barisani-Asenbauer, Talin
Wiedermann, Ursula
Inic-Kanada, Aleksandra
Article (Published version)
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Abstract
Vaccines can have heterologous effects on the immune system, i.e., effects other than triggering an immune response against the disease targeted by the vaccine. We investigated whether monoclonal antibodies (mAbs) specific for tetanus could cross-react with Chlamydia and confer heterologous protection against chlamydial infection. The capability of two tetanus-specific mAbs, namely mAb26 and mAb51, to prevent chlamydial infection has been assessed: (i) in vitro, by performing a neutralization assay using human conjunctival epithelial (HCjE) cells infected with Chlamydia trachomatis serovar B, and (ii) in vivo, by using a guinea pig model of Chlamydiacaviae-induced inclusion conjunctivitis. The mAb26 has been superior in comparison with mAb51 in the prevention of chlamydial infection in HCjE cells. The mAb26 has conferred ≈40% inhibition of the infection, compared to less than 5% inhibition in the presence of the mAb51. In vivo, mAb26 significantly diminished ocular pathology inte...nsity in guinea pigs infected with C. caviae compared to either the mAb51-treated or sham-treated guinea pigs. Our data provide insights that tetanus immunization generates antibodies which induce heterologous chlamydial immunity and promote protection beyond the intended target pathogen.

Keywords:
antibodies / Chlamydia / cross-reactivity / heterologous immunity / tetanus / vaccination
Source:
Vaccines, 2020, 8, 4, 719-
Projects:
  • This work was institutionally funded by the Institute for Specific Prophylaxis and Tropical Medicine, Medical University of Vienna, Austria, and partially supported by the Austrian Research Promotion Agency (FFG project number 822768).
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200177 (Immunology Research Centre 'Branislav Janković' Torlak, Belgrade) (RS-200177)
  • Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200168 (University of Belgrade, Faculty of Chemistry) (RS-200168)

DOI: 10.3390/vaccines8040719

ISSN: 2076-393X

WoS: 000601709900001

Scopus: 2-s2.0-85097255732
[ Google Scholar ]
URI
http://cherry.chem.bg.ac.rs/handle/123456789/4292
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Hemijski fakultet

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