PMID- 19144870 OWN - NLM STAT- MEDLINE DCOM- 20090401 LR - 20101118 IS - 1535-3702 (Print) IS - 1535-3699 (Linking) VI - 234 IP - 3 DP - 2009 Mar TI - Investigation of the dermal sensitizing potential of traditional medical extracts in local lymph node assays. PG - 306-13 LID - 10.3181/0809-RM-281 [doi] AB - Traditional medical extracts are commonly used as complex mixtures, which may contain naturally occurring contact sensitizers. In this investigation, the mice local lymph node assay (LLNA) was performed to evaluate the dermal sensitization potential of Myrrh, Borneolum, Olibanum, Moschus and Cassia Bark, which are widely used in topical traditional medication. In the radioactive LLNA, the stimulation index (SI) values were calculated for each medical extract. Myrrh, Borneolum, Olibanum and Moschus induced dose-dependent cell proliferation and SI was more than 3. Cassia Bark showed no positive response over the range of test concentrations. In the flow cytometry analysis, the total number of CD3(+), CD4(+), and CD8(+) cells in local lymph nodes was increased in Moschus-, Olibanum-, Myrrh- and Borneolum-treated mice. The ratio of the B220(+)/CD3(+) (B/T cell ratio) and the percentage of I-A(k+) cells that was also positive for the CD69 marker (I-A(k+)/ CD69(+)) were increased in the Moschus-, Olibanum- and Myrrh-treated mice. However, no ofbvious change was observed in Borneolum-treated mice. Cassia Bark did not induce changes in the lymphocyte subpopulations. These results indicate that Moschus, Olibanum and Myrrh can be regarded as sensitizers, and Borneolum regarded as an irritant. Cassia Bark is neither a sensitizer nor an irritant. The combination of radioactive and flow cytometric LLNA can be used for the prediction of sensitizing potential of medical extracts which lead to allergic contact dermatitis in humans. FAU - Lv, Lei AU - Lv L AD - National Chengdu Center for Safety Evaluation of Drugs, West China Hospital of Sichuan University, Chengdu 610041, China. FAU - Yan, Guang-Yan AU - Yan GY FAU - Zhao, Ying-Lan AU - Zhao YL FAU - He, Xiao-Juan AU - He XJ FAU - Jiang, Xing AU - Jiang X FAU - Zhuo, Yan-Qiang AU - Zhuo YQ FAU - Wang, Yan-Li AU - Wang YL FAU - Wang, Li AU - Wang L FAU - Cen, Xiao-Bo AU - Cen XB LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20090114 PL - Switzerland TA - Exp Biol Med (Maywood) JT - Experimental biology and medicine (Maywood, N.J.) JID - 100973463 RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation, T-Lymphocyte) RN - 0 (CD69 antigen) RN - 0 (Irritants) RN - 0 (Lectins, C-Type) RN - 0 (Plant Extracts) SB - IM MH - Animals MH - Antigens, CD/metabolism MH - Antigens, Differentiation, T-Lymphocyte/metabolism MH - Cell Proliferation/drug effects MH - Dermis/*drug effects/*immunology MH - Ear/anatomy & histology MH - Flow Cytometry MH - Irritants/*pharmacology MH - Lectins, C-Type MH - *Local Lymph Node Assay MH - Lymph Nodes/cytology/drug effects MH - Lymphocytes/cytology/drug effects MH - Mice MH - Mice, Inbred CBA MH - Organ Size/drug effects MH - Plant Extracts/*pharmacology MH - Plants, Medicinal/*metabolism EDAT- 2009/01/16 09:00 MHDA- 2009/04/02 09:00 CRDT- 2009/01/16 09:00 PHST- 2009/01/16 09:00 [entrez] PHST- 2009/01/16 09:00 [pubmed] PHST- 2009/04/02 09:00 [medline] AID - 0809-RM-281 [pii] AID - 10.3181/0809-RM-281 [doi] PST - ppublish SO - Exp Biol Med (Maywood). 2009 Mar;234(3):306-13. doi: 10.3181/0809-RM-281. Epub 2009 Jan 14.