{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T23:12:49Z","timestamp":1790723569769,"version":"4.1.0"},"reference-count":27,"publisher":"American Society for Microbiology","issue":"4","license":[{"start":{"date-parts":[[2000,7,1]],"date-time":"2000-07-01T00:00:00Z","timestamp":962409600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Clin Diagn Lab Immunol"],"published-print":{"date-parts":[[2000,7]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>Significant abnormalities are observed in the peripheral blood of juvenile dermatomyositis (JDM) patients with active disease. In this study, we confirm that there is a significant increase in the relative percentage of B lymphocytes in the peripheral blood of a group of untreated children with newly diagnosed active JDM compared to healthy children (<jats:italic>P<\/jats:italic>&lt; 0.0001). In order to investigate if properties intrinsic to B cells contributed to their relative increase in JDM, the percentage of B cells expressing activation markers (CD23, CD25, CD54, and CD69) was measured and compared to pediatric controls. Compared to healthy children less than 10 years of age (not significantly different from the JDM group), the JDM patients had an increase in the proportion of lymphocytes expressing CD19 (B cells;<jats:italic>P<\/jats:italic>= 0.0017) and decreases in the percentage of lymphocytes that were CD3<jats:sup>\u2212<\/jats:sup>CD16<jats:sup>+<\/jats:sup>and\/or CD56<jats:sup>+<\/jats:sup>(NK cells;<jats:italic>P<\/jats:italic>= 0.01) and CD3<jats:sup>+<\/jats:sup>CD8<jats:sup>+<\/jats:sup>(T suppressor\/cytotoxic cells;<jats:italic>P<\/jats:italic>= 0.02). There were no significant differences in any of the B-cell activation markers assessed. Of note, the percentage of CD54<jats:sup>+<\/jats:sup>non-B lymphocytes (i.e., T cells and NK cells expressing CD54) was significantly lower in the JDM patients (25% \u00b1 5%) than in the \u201cage-related\u201d healthy control group (43% \u00b1 4%;<jats:italic>P<\/jats:italic>= 0.013). These results suggest the following for untreated children with active JDM: (i) the increase in the percentage of peripheral blood B cells is not due to intrinsic B-cell activation, and (ii) CD54\/ICAM-1<jats:sup>+<\/jats:sup>non-B cells, CD8<jats:sup>+<\/jats:sup>T cells, and NK cells are being removed from circulation and may be participating in the pathophysiology of the disease.<\/jats:p>","DOI":"10.1128\/cdli.7.4.693-697.2000","type":"journal-article","created":{"date-parts":[[2002,7,27]],"date-time":"2002-07-27T05:55:30Z","timestamp":1027749330000},"page":"693-697","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":32,"title":["Decreased Levels of CD54 (ICAM-1)-Positive Lymphocytes in the Peripheral Blood in Untreated Patients with Active Juvenile Dermatomyositis"],"prefix":"10.1128","volume":"7","author":[{"given":"Maurice R. G.","family":"O'Gorman","sequence":"first","affiliation":[{"name":"<!--label omitted: 1-->Division of Immunology\/Rheumatology, Department of Pediatrics, The Children's Memorial Medical Center, Northwestern University Medical School,1 and"},{"name":"<!--label omitted: 2-->The Children's Memorial Hospital,2Chicago, Illinois 60614"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laura","family":"Bianchi","sequence":"additional","affiliation":[{"name":"<!--label omitted: 1-->Division of Immunology\/Rheumatology, Department of Pediatrics, The Children's Memorial Medical Center, Northwestern University Medical School,1 and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Zaas","sequence":"additional","affiliation":[{"name":"<!--label omitted: 1-->Division of Immunology\/Rheumatology, Department of Pediatrics, The Children's Memorial Medical Center, Northwestern University Medical School,1 and"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Virginia","family":"Corrochano","sequence":"additional","affiliation":[{"name":"<!--label omitted: 2-->The Children's Memorial Hospital,2Chicago, Illinois 60614"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lauren M.","family":"Pachman","sequence":"additional","affiliation":[{"name":"<!--label omitted: 1-->Division of Immunology\/Rheumatology, Department of Pediatrics, The Children's Memorial Medical Center, Northwestern University Medical School,1 and"},{"name":"<!--label omitted: 2-->The Children's Memorial Hospital,2Chicago, Illinois 60614"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_2_2_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1365-2249.1996.d01-722.x"},{"key":"e_1_3_2_3_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM197502132920706"},{"key":"e_1_3_2_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/0952-7915(95)80110-3"},{"key":"e_1_3_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/0165-2478(94)00232-G"},{"key":"e_1_3_2_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/eji.1830260517"},{"key":"e_1_3_2_7_2","unstructured":"Callard R. 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