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  • A critical role for thymic stromal lymphopoietin in nickel-induced allergy in mice.

A critical role for thymic stromal lymphopoietin in nickel-induced allergy in mice.

Journal of immunology (Baltimore, Md. : 1950) (2014-03-29)
Meinar Nur Ashrin, Rieko Arakaki, Akiko Yamada, Tomoyuki Kondo, Mie Kurosawa, Yasusei Kudo, Megumi Watanabe, Tetsuo Ichikawa, Yoshio Hayashi, Naozumi Ishimaru
ABSTRACT

Ni is the most frequent cause of contact allergy induced by metals. However, the underlying mechanism of this induction is unknown. Our previous research demonstrates that activation of dendritic cells (DCs) through p38MAPK/MKK6 is required for Ni-induced allergy in mice. In the current study, we investigated the cellular and molecular mechanisms underlying Ni-induced allergy using a mouse model that involves injecting Ni into the ear, with or without Freund's incomplete or complete adjuvants. Nickel had greater potential to cause allergic reactions compared with palladium and gold. Among the proteins expressed at higher levels in mice with Ni-induced allergy, we focused on thymic stromal lymphopoietin (TSLP), which is produced in abundance by keratinocytes. We detected increased expression of the TSLP receptor (TSLPR) in DCs from cervical lymph nodes of mice with Ni-induced allergy, suggesting that DCs in ear tissues were activated through TSLPR signaling induced by keratinocyte-derived TSLP. Furthermore, delayed-type hypersensitivity reactions in mice with Ni-induced allergy were decreased significantly by injection of a Tslp-short interfering RNA along with atelocollagen in the ear skin. These results suggest that Ni allergy may be triggered by a TSLP/TSLPR-mediated interaction between epithelial and immune cells.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
Nickel, nanopowder, <100 nm avg. part. size, ≥99% trace metals basis
Sigma-Aldrich
Nickel, powder, <50 μm, 99.7% trace metals basis
Sigma-Aldrich
Nickel, foil, thickness 0.1 mm, 99.98% trace metals basis
Sigma-Aldrich
Nickel, wire, diam. 0.5 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Nickel, rod, diam. 6.35 mm, ≥99.99% trace metals basis
Sigma-Aldrich
Nickel, foil, thickness 0.5 mm, 99.98% trace metals basis
Nickel, foil, 15mm disks, thickness 0.075mm, annealed, 99%
Nickel, tube, 100mm, outside diameter 0.75mm, inside diameter 0.59mm, wall thickness 0.08mm, hard, 99.5%
Nickel, foil, 10mm disks, thickness 0.30mm, as rolled, 99.98%
Nickel, foil, 1m coil, thickness 0.15mm, annealed, 99%
Nickel, rod, 200mm, diameter 20.0mm, 99%
Nickel, foil, 10mm disks, thickness 0.125mm, as rolled, 100%
Nickel, foil, 1m coil, thickness 0.3mm, coil width 1mm, as rolled, 99%
Nickel, sphere, 100pcs, diameter 0.76mm, precision sphere grade 200, 99%
Nickel, rod, 500mm, diameter 9.5mm, 99%
Nickel, foil, 15mm disks, thickness 0.25mm, as rolled, 100%
Nickel, tube, 100mm, outside diameter 3.25mm, inside diameter 3.05mm, wall thickness 0.1mm, hard, 99.5%
Nickel, tube, 100mm, outside diameter 0.8mm, inside diameter 0.5mm, wall thickness 0.15mm, as drawn, 99.5%
Nickel, tube, 1000mm, outside diameter 3.0mm, inside diameter 2.4mm, wall thickness 0.3mm, hard, 99.5%
Nickel, foil, 1m coil, thickness 0.003mm, 99.95%
Nickel, foil, 15mm disks, thickness 0.5mm, as rolled, 99.99+%
Nickel, rod, 50mm, diameter 5.0mm, 99.99+%
Nickel, tube, 100mm, outside diameter 2.5mm, inside diameter 2mm, wall thickness 0.25mm, hard, 99.5%
Nickel, tube, 200mm, outside diameter 0.65mm, inside diameter 0.384mm, wall thickness 0.133mm, as drawn, 99.5%
Nickel, tube, 100mm, outside diameter 0.35mm, inside diameter 0.3mm, wall thickness 0.025mm, hard, 99.5%
Nickel, foil, 1m coil, thickness 0.125mm, annealed, 99.98%
Nickel, foil, 10mm disks, thickness 0.3mm, as rolled, 100%
Nickel, foil, 15mm disks, thickness 0.025mm, annealed, 99%
Nickel, rod, 50mm, diameter 10.0mm, 99.99+%
Nickel, tube, 200mm, outside diameter 7.11mm, inside diameter 6.57mm, wall thickness 0.27mm, hard, 99.5%