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  • Title: [Lymphocyte phenotypes and their correlation with clinical features in systemic lupus erythematosus (SLE)].
    Author: Bi LQ, Song Y, Sun RW.
    Journal: Zhonghua Nei Ke Za Zhi; 1990 Dec; 29(12):720-2, 764-5. PubMed ID: 1982646.
    Abstract:
    Lymphocyte phenotypes of peripheral blood from 32 SLE patients and 30 normal subjects were studied with 13 kinds of monoclonal antibodies using indirect immunofluorescence technique. The results showed that T4+, T8+, T3+ and T11+ cells decreased in active cases of SLE, while Ia+, IL2R1+ and PCA-1+ cells increased, other B-cell phenotypes (B1, B2, B4, IgM, IgG, IgD) showed no significant difference from those of the normal group. Thus, in inactive SLE after therapeutic management, the numbers of T3+, T11+, T4+, Ia+ and IL2R1+ cells no longer show any abnormality, but the numbers of T8+, PCA-1+ cells and the level of serum IgG are still higher than normal. From the above-mentioned results, it was shown that: 1. The key change in active SLE is the abnormality of immunoregulatory T cells, especially T4+ cells; 2. In active SLE, some of the T cells have been activated in vivo and these immunocompetent cells play an important role in immunoglobulin production of B cells; 3. The hyperactivity of humoral immunity is mainly related to the increase of PCA-1+ cells under the regulation of T cells; 4. Both the lymphocyte phenotypes and clinical features of SLE showed heterogeneity.
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