Identification of Th cell epitopes on clfA adhesin of Staphylococcus aureus and characterization of their role in immunity

Wei Sheng Wu Xue Bao. 2013 Sep 4;53(9):966-75.

Abstract

Objective: The ClfA adhesin of Staphylococcus aureus is an excellent vaccine candidate antigen. CD4 + T cells play central roles during immune responses, but their functional contributions to Staphylococcus aureus in fection have yet to be evaluated.

Methods: By using the SYFPEITHI prediction algorithm, we identified and characterized four Th epitopes within the ClfA adhesin.

Results: Peptide C335 was I-Ed restricted Th1 type epitopes; peptides C214, C286, and C436 were I-Ad restricted Th2 type epitope.

Conclusion: The identification of these epitopes is important to evaluate and optimize the vaccine-primed protection against Staphylococcus aureus infection.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adhesins, Bacterial / genetics
  • Adhesins, Bacterial / immunology*
  • Amino Acid Sequence
  • Animals
  • CD4-Positive T-Lymphocytes / immunology
  • Coagulase / genetics
  • Coagulase / immunology*
  • Epitopes, T-Lymphocyte / genetics
  • Epitopes, T-Lymphocyte / immunology*
  • Female
  • Humans
  • Immunity
  • Mice
  • Mice, Inbred BALB C
  • Molecular Sequence Data
  • Staphylococcal Infections / immunology
  • Staphylococcal Infections / microbiology*
  • Staphylococcus aureus / enzymology
  • Staphylococcus aureus / genetics
  • Staphylococcus aureus / immunology*
  • Th1 Cells / immunology*
  • Th2 Cells / immunology*

Substances

  • Adhesins, Bacterial
  • ClfA protein, Staphylococcus aureus
  • Coagulase
  • Epitopes, T-Lymphocyte