Accumulation of invariant NKT cells into inflamed skin in a novel murine model of nickel allergy

Takanori Eguchi, Kenichi Kumagai, Hiroshi Kobayashi, Hiroaki Shigematsu, Kazutaka Kitaura, Satsuki Suzuki, Tatsuya Horikawa, Yoshiki Hamada, Kouetsu Ogasawara, Ryuji Suzuki

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


Nickel (Ni) can cause delayed-type hypersensitivity reactions, which are thought to be mediated by the accumulation of T cells into inflamed skin. Accumulated T cells at the developmental stages in metal allergy are poorly characterized because a suitable animal model has not been established. To investigate the accumulated T cells in allergic inflamed skin, we generated a novel murine model of Ni-induced allergy. The murine model of Ni allergy was induced by two sensitizations of Ni plus lipopolysaccharide solution into the groin followed by three challenges with Ni solution into the footpad. Here we show that a specific TCR repertoire bearing Vα14Jα18, called natural killer (NK) T cells, was expanded monoclonally in BALB/c or C57BL/6 mice. Accumulation of NKT cells was characterized as CD4+ or CD4-CD8- T cells. These results suggested that NKT cells are major pathogenic T cells at the elicitation phase of Ni allergy.

Original languageEnglish
Pages (from-to)163-171
Number of pages9
JournalCellular Immunology
Issue number1-2
Publication statusPublished - 2013 Jul


  • Hypersensitivity
  • Natural killer T cells
  • Nickel


Dive into the research topics of 'Accumulation of invariant NKT cells into inflamed skin in a novel murine model of nickel allergy'. Together they form a unique fingerprint.

Cite this