Keratinocytes play a role in the immunity to Herpes simplex virus type 2 infection

Acta Virol. 2010;54(4):261-7. doi: 10.4149/av_2010_04_261.

Abstract

Herpes simplex virus type 2 (HSV-2) infection is the most common cause of genital ulcerative disease in the developed world. Keratinocytes are the primary cells involved in clinical lesions caused by HSV-2. In our study, we intensively examined cytokine expression in the HSV-2-infected keratinocytes. We observed upregulation of a series of cytokines including early-induced antiviral cytokines as interferons α, β (IFN-α, β), tumor necrosis factor α (TNF-α), colony stimulating factors (CSFs) as G-CSF, GM-CSF, interleukin 3 (IL-3), growth factors (EGF, KGF, and IGF-β1), defensins, selectins, leukocyte function-associated antigens (LFAs,) and toll-like receptors (TLR-2, 3, 4, and 9). More importantly, we found that HSV-2-infected keratinocytes stimulated the proliferation of lymphocytes in co-cultivation system. These data suggest that keratinocytes participate in the immune response to HSV-2 infection in two ways. They secrete inflammatory cytokines to resist the HSV-2 infection directly and recruit the immune cells to eliminate the primary infection indirectly and enhance the adaptive immunity to prevent subsequent infections.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cell Line
  • Chlorocebus aethiops
  • Cytokines / genetics
  • Cytokines / immunology
  • Herpes Simplex / genetics
  • Herpes Simplex / immunology*
  • Herpes Simplex / virology
  • Herpesvirus 2, Human / immunology*
  • Humans
  • Keratinocytes / immunology*
  • Keratinocytes / virology
  • Up-Regulation
  • Vero Cells

Substances

  • Cytokines