論文

査読有り 国際誌
2020年3月19日

Migratory dendritic cells in skin-draining lymph nodes have nickel-binding capabilities.

Scientific reports
  • Toshinobu Kuroishi
  • ,
  • Kanan Bando
  • ,
  • Reiska Kumala Bakti
  • ,
  • Gaku Ouchi
  • ,
  • Yukinori Tanaka
  • ,
  • Shunji Sugawara

10
1
開始ページ
5050
終了ページ
5050
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1038/s41598-020-61875-6

Nickel (Ni) is the most frequent metal allergen and induces Th1-dependent type-IV allergies. In local skin, epidermal Langerhans cells (LCs) and/or dermal dendritic cells (DCs) uptake antigens and migrate to draining lymph nodes (LNs). However, the subsets of antigen-presenting cells that contribute to Ni presentation have not yet been identified. In this study, we analyzed the Ni-binding capabilities of murine DCs using fluorescent metal indicator Newport Green. Elicitation of Ni allergy was assessed after intradermal (i.d.) injection of Ni-treated DCs into ear pinnae of Ni-sensitized mice. The Ni-binding capabilities of MHC class IIhi CD11cint migratory DCs were significantly stronger than those of MHC class IIint CD11chi resident DCs and CD11cint PDCA1+ MHC class IIint B220+ plasmacytoid DCs. Migratory DCs in skin-draining and mandibular LNs showed significantly stronger Ni-binding capabilities than those in mesenteric and medial iliac LNs. An i.d. injection of IL-1β induced the activation of LCs and dermal DCs with strong Ni-binding capabilities. Ni-binding LCs were detected in draining LNs after i.d. challenge with IL-1β and Ni. Moreover, an i.d. injection of Ni-treated DCs purified from skin-draining LNs elicited Ni-allergic inflammation. These results demonstrated that migratory DCs in skin-draining LNs have strong Ni-binding capabilities and elicit Ni allergy.

リンク情報
DOI
https://doi.org/10.1038/s41598-020-61875-6
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/32193426
PubMed Central
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7081353
ID情報
  • DOI : 10.1038/s41598-020-61875-6
  • PubMed ID : 32193426
  • PubMed Central 記事ID : PMC7081353

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