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Influence of irritants on lymph node cell proliferation and the detection of contact sensitivity to metal salts in the murine local lymph node assay
Author(s) -
Ikarashi Yoshiaki,
Tsukammoto Yasuhiro,
Tsuchiya Tohie,
Nakamura Akitada
Publication year - 1993
Publication title -
contact dermatitis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 96
eISSN - 1600-0536
pISSN - 0105-1873
DOI - 10.1111/j.1600-0536.1993.tb03509.x
Subject(s) - local lymph node assay , chemistry , dimethyl sulfoxide , picryl chloride , potassium dichromate , irritation , aqueous solution , lymph node , toxicity , contact dermatitis , irritant contact dermatitis , immunology , pharmacology , biochemistry , allergy , organic chemistry , medicine , in vitro , immune system , potency
Dimethyl sulfoxide (DMSO) and sodium lauryl sulfate (SLS) are known to cause irritation of the skin, and to enhance the penetration of chemicals into the epidermis. In the present study, the lymph node cell (LNC) proliferative response following exposure to irritants, such as SLS and DMSO, was examined in the marine local lymph node assay (LLNA). Exposure to DMSO or SLS aqueous Solution induced a small increase in lymph node cell proliferation compared with aqueous solution alone. Exposure to SLS in DMSO caused a significant increase in LNC proliferation. Further, the effect of addition of the irritants in a vehicle on the detection of contact sensitivity to metal allergens was examined. Application of potassium dichromate and nickel sulfate in DMSO or SLS aqueous solution caused increases in LNC proliferation. Exposure to metal allergen with SLS in DMSO also induced a significant LNC proliferative response, but did not induce 9 significant increase in stimulation index (increase in 3 H‐thymidine incorporation relative to vehicle‐treated control group). This was because of increased 3 H‐thymidine incorporation following exposure to SLS‐DMSO in the control group. These results suggest that irritants enhance the LNC proliferate responses to metal allergens. The use of SLS in aqueous solution is effective for the detection of sensitivity to water‐soluble allergens, such as metal allergens, in the LLNA, as well as the use of DMSO as an application vehicle.