PMID- 11502665 OWN - NLM STAT- MEDLINE DCOM- 20010906 LR - 20190514 IS - 0012-3692 (Print) IS - 0012-3692 (Linking) VI - 120 IP - 2 DP - 2001 Aug TI - High concentrations of beta-chemokines in BAL fluid of patients with diffuse panbronchiolitis. PG - 602-7 AB - BACKGROUND: T cells are important cellular components of bronchial inflammation in diffuse panbronchiolitis (DPB). beta-Chemokines such as RANTES (regulated on activation, normal T-cell expressed and secreted) and macrophage inflammatory peptide (MIP)-1alpha are closely related to the migration of inflammatory cells into the lung. In this study, we investigate the contribution of beta-chemokines to the accumulation of T cells in the lungs of patients with DPB. PATIENTS AND METHODS: We determined the levels of beta-chemokines in BAL fluid (BALF) and the correlation between these levels and T-cell subsets in BALF of 23 patients with DPB and 16 healthy subjects by sandwich enzyme-linked immunosorbent assay and flow cytometry. RESULTS: Percentages of CD3+ human leukocyte antigen (HLA)-DR+, CD8+, and CD8+HLA-DR+ cells in BALF of patients were significantly higher than in the control BALF. The absolute number of CD8+HLA-DR+ cells was also higher in BALF of patients than in the control BALF (p < 0.0001). Phenotypic analysis of CD4+ cells in BALF showed a similar percentage of CD4+CD45RA+ cells and CD4+CD29+ cells in patients and normal subjects. The concentrations of RANTES and MIP-1alpha in BALF of patients with DPB were significantly higher than in BALF of normal subjects (p < 0.05). In addition, there was a significant correlation between the absolute number or percentage of CD8+HLA-DR+ cells and MIP-1alpha concentration in BALF. CONCLUSIONS: Our results suggest that the interaction between activated CD8+ T cells and MIP-1alpha may contribute to the pathogenesis of DPB. FAU - Kadota, J AU - Kadota J AD - Second Department of Internal Medicine, Nagasaki University School of Medicine, Nagasaki, Japan. kadota@oita-med.ac.jp FAU - Mukae, H AU - Mukae H FAU - Tomono, K AU - Tomono K FAU - Kohno, S AU - Kohno S LA - eng PT - Journal Article PL - United States TA - Chest JT - Chest JID - 0231335 RN - 0 (Chemokine CCL3) RN - 0 (Chemokine CCL4) RN - 0 (Chemokine CCL5) RN - 0 (Chemokines, CC) RN - 0 (Macrophage Inflammatory Proteins) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Bronchiolitis/*metabolism MH - Bronchoalveolar Lavage Fluid/*chemistry/cytology MH - CD8-Positive T-Lymphocytes/cytology MH - Chemokine CCL3 MH - Chemokine CCL4 MH - Chemokine CCL5/analysis MH - Chemokines, CC/*analysis MH - Enzyme-Linked Immunosorbent Assay MH - Female MH - Flow Cytometry MH - Humans MH - Macrophage Inflammatory Proteins/analysis MH - Male MH - Middle Aged MH - T-Lymphocyte Subsets/cytology EDAT- 2001/08/15 10:00 MHDA- 2001/09/08 10:01 CRDT- 2001/08/15 10:00 PHST- 2001/08/15 10:00 [pubmed] PHST- 2001/09/08 10:01 [medline] PHST- 2001/08/15 10:00 [entrez] AID - S0012-3692(15)51474-8 [pii] AID - 10.1378/chest.120.2.602 [doi] PST - ppublish SO - Chest. 2001 Aug;120(2):602-7. doi: 10.1378/chest.120.2.602.