PMID- 9626161 OWN - NLM STAT- MEDLINE DCOM- 19980702 LR - 20171116 IS - 0021-972X (Print) IS - 0021-972X (Linking) VI - 83 IP - 6 DP - 1998 Jun TI - Increased CD69 and human leukocyte antigen-DR expression on T lymphocytes in insulin-dependent diabetes mellitus of long standing. PG - 2204-9 AB - To better define prevailing activation of circulating T cell subsets in insulin-dependent diabetes mellitus (IDDM) of recent onset (DM; n = 31; median age +/- SD, 28 +/- 6.9 yr) and of long standing (DML; n = 27; age, 33 +/- 10.4 yr; median duration of disease, 105 months), CD4+ and CD8+ T cells were analyzed to determine their naive and memory subsets as well as their expression of human leukocyte antigen (HLA)-DR, interleukin-2 receptor alpha-chain (CD25), and CD69 by three-color flow cytometry. Twenty-six healthy subjects (HS; age, 32.0 +/- 8.2 yr) served as controls. No deviation was seen in either IDDM group compared to HS in CD25 expression on CD4+ or CD8+ cells or in their CD45RA+ or CD45RA- subsets. HLA-DR expression, however, was increased (P < 0.05) in total CD8+ cells and CD45RA+ cells, with CD45RA- CD8+ cells joining the prevailing pattern only in DML. Among CD4+ cells, increased expression of HLA-DR molecules was restricted to total and CD45RA- cells in DML. CD69 expression did not differ between IDDM and HS, but differed between DML (CD4+, CD8+, and CD45RA- CD4+) and DM only. In conclusion, our data demonstrate that HLA-DR expression in IDDM is restricted to memory cells (CD45RA-) among CD4+ cells in DML and is more markedly confined to naive (CD45RA+) than to memory CD8+ cells, whereas the early activation antigen CD69 is more readily expressed in DML than in DM. The observed activation of circulating T cells suggests an ongoing immune process in IDDM both at clinical manifestation and after long duration. FAU - Gessl, A AU - Gessl A AD - Department of Medicine III, University of Vienna, Austria. alois.gessl@akh-wien.ac.at FAU - Waldhausl, W AU - Waldhausl W LA - eng PT - Journal Article PL - United States TA - J Clin Endocrinol Metab JT - The Journal of clinical endocrinology and metabolism JID - 0375362 RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation, T-Lymphocyte) RN - 0 (CD69 antigen) RN - 0 (HLA-DR Antigens) RN - 0 (Lectins, C-Type) RN - 0 (Receptors, Interleukin-2) RN - EC 3.1.3.48 (Leukocyte Common Antigens) RN - EC 3.1.3.48 (Protein Tyrosine Phosphatase, Non-Receptor Type 1) SB - IM MH - Adult MH - Antigens, CD/*metabolism MH - Antigens, Differentiation, T-Lymphocyte/*metabolism MH - CD4-Positive T-Lymphocytes/immunology MH - CD8-Positive T-Lymphocytes/immunology MH - Diabetes Mellitus, Type 1/*immunology MH - Female MH - Flow Cytometry MH - HLA-DR Antigens/*metabolism MH - Humans MH - Immunophenotyping MH - Lectins, C-Type MH - Leukocyte Common Antigens/analysis MH - Male MH - Protein Tyrosine Phosphatase, Non-Receptor Type 1 MH - Receptors, Interleukin-2/analysis MH - T-Lymphocytes/*immunology MH - Time Factors EDAT- 1998/06/17 00:00 MHDA- 1998/06/17 00:01 CRDT- 1998/06/17 00:00 PHST- 1998/06/17 00:00 [pubmed] PHST- 1998/06/17 00:01 [medline] PHST- 1998/06/17 00:00 [entrez] AID - 10.1210/jcem.83.6.4889 [doi] PST - ppublish SO - J Clin Endocrinol Metab. 1998 Jun;83(6):2204-9. doi: 10.1210/jcem.83.6.4889.