Clinical Focus ›› 2022, Vol. 37 ›› Issue (11): 1001-1007.doi: 10.3969/j.issn.1004-583X.2022.11.007

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Clinical determination of lymphocyte subsets in peripheral blood of patients with angioimmunoblastic T cell lymphoma

Lu Luo, Wang Fei, Gu Weiying()   

  1. Department of Hematology,the First People’s Hospital of Changzhou, the Third Affiliated Hospital of Soochow University,Changzhou 213000,China
  • Received:2022-09-27 Online:2022-11-20 Published:2023-01-02
  • Contact: Gu Weiying E-mail:guweiying2001@163.com

Abstract:

Objective To analyze the relevance between lymphocyte subsets and clinical prognosis in the peripheral blood of patients with angioimmunoblastic T cell lymphoma (AITL) during diagnosis, and to assess their dynamic changes after chemotherapy.M-ethods The clinical data of 16 initial AITL patients (treatment group) and 10 lymphocyte subsets (control group) were retrospectively analyzed, these patients visited the Third Affiliated Hospital of Soochow University between March 2016 and September 2021. Kaplan-Meier method and Cox regression were adopted for survival analysis. Receiver Operator Characteristic (ROC)curve was used to calculate the cutoff value of CD4/CD8 ratio, and the patients of the treatment group were assigned into low and high CD4/CD8 groups. Results Compared to the controls, the absolute count of CD3+T cells, CD4+ T cells, CD3+CD25+ activated T cells and CD4/CD8 ratio significantly decreased in the peripheral blood of AITL patients at the initial diagnosis. Whereas, the absolute count of CD19+ B cells, CD20+ B cells, CD5+CD19+ and CD19+CD23+ activated B cell significantly decreased. The proportion of CD3+ T cells after the first course of chemotherapy significantly increased than that at the initial diagnosis, and the proportion of CD4+ T cells, CD3+CD25+ activated T cells and CD4/CD8 significantly increased after three courses of the treatment. The survival analysis showed that the progression-free-survival (PFS) and overall survival (OS) of the low CD4/CD8 group were significantly higher than those of the CD4/CD8 group. Conclusion High CD4/CD8 ratio in peripheral blood at the initial diagnosis of AITL patients is associated with poor prognosis. CD4+ T cell count in the peripheral blood of patients is significantly decreased compared with healthy people, and which can be partially recovered after effective treatment. The analysis on lymphocyte subsets in AITL supports providing new ideas for identifying new prognostic markers of AITL and implementing effective individualized immunotherapy.

Key words: lymphoma, T cells, lymphocyte subsets, CD4+ T cells, CD4/CD8

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