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자료유형
학술저널
저자정보
저널정보
한국독성학회 Toxicological Research Journal of Toxicology and Public Health Vol.18 No.2
발행연도
2002.6
수록면
175 - 181 (7page)

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Allergic contact dermatitis (skin sensitization) may be caused by a wide variety of chemicals. A murine local lymph node assay (LLNA) has been developed as an alternative to guinea pig models for assessing the contact sensitization potential of chemical. This study was carried out to evaluate the skin sensitization potential for chemicals in Balb/c mice by LLNA. Contact allergen, dinitrochlorobenzene (DNCB), respiratory allergen, toluene diisocyanate(TDI) and a weak allergen, α-hexylcinnamaldehyde (HCA) were used as positive chemicals and irritant, sodium lauryl sulfate(SLS) also used as a reference chemical in this study. The weights of lymph node in the mice treated with DNCB, TDI, and HCA were increased compared to vehicle control. There was a significant increase in lymph node weight of mice treated with high concentration of SLS compared to vehicle control. The stimulation index (SI) of lymph node cell in the mice treated with DNCB, TDI, and HCA revealed over three-fold increase compared to vehicle control by ³H-thymidine uptake. All allergens correctly indentified in this LLNA study using Balb/c mice. These results suggest that LLNA using Balb/c mice could be a useful method for screening the allergenic potential of chemicals. The expression of IL-2 mRNA was slightly increased in draining auricular lymph node cell of the mice treated with TDI and HCA by RT-PCR. However, the IL-2 levels in DNCB and SLS of treated animals were not significantly changed.

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