PMID- 15885081 OWN - NLM STAT- MEDLINE DCOM- 20050808 LR - 20220311 IS - 0906-6705 (Print) IS - 0906-6705 (Linking) VI - 14 IP - 6 DP - 2005 Jun TI - The expression of human leukocyte antigen-DR and CD25 on circulating T cells in cutaneous lupus erythematosus and correlation with disease activity. PG - 454-9 AB - BACKGROUND: Lupus erythematosus (LE) is a chronic autoimmune disease with a broad clinical spectrum reaching from primarily cutaneous manifestations [cutaneous LE (CLE)] up to systemic disease [systemic LE (SLE)]. In patients with SLE, the expression of activation markers on circulating T cells reflects disease activity. Here, we investigated whether this also holds true for patients with CLE. PATIENTS AND METHODS: The expression of the activation markers human leukocyte antigen (HLA)-DR and CD25 on circulating T lymphocytes was measured by flow cytometry in 24 patients suffering from different types of active CLE. Simultaneously, the disease activity was assessed clinically using a CLE activity index. Eighteen healthy donors were analyzed for control purposes. RESULTS: HLA-DR was expressed on a significantly elevated percentage of both CD4+ and CD8+ circulating T cells in active CLE patients when compared with healthy controls. The percentage of HLA-DR-expressing T lymphocytes closely correlated with the disease activity. Interestingly, in disseminated scarring chronic discoid LE, a significantly increased percentage of CD25+ cells was observed only in the subset of skin-homing cutaneous lymphocyte antigen (CLA)+CD4+ and CD8+ T cells. CONCLUSION: Our results provide evidence that activation markers on peripheral blood T cells might help to objectively assess the disease activity in CLE. Furthermore, a significant population of CD25+CLA+CD8+ T cells can only be detected in a subgroup of patients with disseminated scarring CLE and might reflect the systemic expansion of activated cytotoxic T lymphocytes involved in destruction of epidermal tissue. FAU - Wenzel, Joerg AU - Wenzel J AD - Department of Dermatology, University of Bonn, Bonn, Germany. joerg.wenzel@ukb.uni-bonn.de FAU - Henze, Stephanie AU - Henze S FAU - Brahler, Sabine AU - Brahler S FAU - Bieber, Thomas AU - Bieber T FAU - Tuting, Thomas AU - Tuting T LA - eng PT - Journal Article PL - Denmark TA - Exp Dermatol JT - Experimental dermatology JID - 9301549 RN - 0 (HLA-DR Antigens) RN - 0 (Receptors, Interleukin-2) SB - IM MH - CD4-Positive T-Lymphocytes/metabolism MH - CD8-Positive T-Lymphocytes/metabolism MH - Epidermis/metabolism MH - Flow Cytometry MH - HLA-DR Antigens/*biosynthesis MH - Humans MH - Inflammation MH - Lupus Erythematosus, Cutaneous/*blood/*metabolism/pathology MH - Receptors, Interleukin-2/*biosynthesis MH - T-Lymphocytes/*metabolism EDAT- 2005/05/12 09:00 MHDA- 2005/08/09 09:00 CRDT- 2005/05/12 09:00 PHST- 2005/05/12 09:00 [pubmed] PHST- 2005/08/09 09:00 [medline] PHST- 2005/05/12 09:00 [entrez] AID - EXD301 [pii] AID - 10.1111/j.0906-6705.2005.00301.x [doi] PST - ppublish SO - Exp Dermatol. 2005 Jun;14(6):454-9. doi: 10.1111/j.0906-6705.2005.00301.x.