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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, METHODS, RESULTS. Meshes: Acute-Phase Reaction, Adult, Antigens, CD, Biomarkers, Bronchiolitis Obliterans, Cytokines, Female, Flow Cytometry, Forced Expiratory Volume, Forkhead Transcription Factors, Graft Rejection, Humans, Leukocytes, Mononuclear, Lung Transplantation, Lymphocyte Count, Male, Middle Aged, Postoperative Complications, Primary Graft Dysfunction, Prospective Studies, T-Lymphocytes, Regulatory, Vital Capacity.
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Is lung function early after lung transplantation correlated with the frequency of regulatory T cells? Context: Outcomes following lung transplantation are limited by bronchiolitis obliterans syndrome (BOS). As the number of circulating regulatory T cells (Treg) is lower in lung recipients with BOS than in stable lung recipients, we hypothesized that Treg is also correlated with lung function in the early post-transplantation period. This prospective study included 18 consecutive patients whose lung function parameters were recorded 3 weeks and 3 months after transplantation, between February and July 2007. Peripheral blood mononuclear cells were stained with anti-CD3, -CD4, -CD8, -CD19, -CD25, -CD28, -CD45RA, -CD45RO, -CD69, -CD127, -CTLA4, and -Foxp3 antibodies and FACS assays were performed. In addition, intracellular cytokines were stained for FACS. Treg-specific markers (Foxp3, CD127(lo), and CTLA4) in the CD25+ CD4+ population were correlated with both forced expiratory volume in 1 s and forced vital capacity. Th1-cytokine secretion was more dominant in CD4+ CD25+ T cells than in CD4+ CD25- T cells. In contrast, Th2 and Treg cytokine secretion was the dominant response in stable recipients.
assistant
The frequency of Treg cells was positively correlated with good lung function in the early period after lung transplantation. Final Decision: yes