期刊
HUMAN IMMUNOLOGY
卷 73, 期 10, 页码 1011-1016出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.humimm.2012.07.335
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资金
- National Research Foundation of Korea (NRF)
- Korean Government [2011-0011332, 2011-0012365]
- Chonnam National University Hospital Research Institute of Clinical Medicine [CRI11074-22, CRI12057-21]
- National Research Foundation of Korea [2011-0011332, 2011-0012365] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Natural killer T (NKT) cells have been reported to play crucial roles in a variety of diseases, including infectious diseases, autoimmunity, and cancers. Previous-studies have reported wide age- and/or sex-related variations in circulating NKT cell levels in healthy subjects, but reported results are discrepant. In this study, the authors examined NKT cell levels in the peripheral blood of healthy Korean subjects and investigated potential relationships between clinical parameters and NKT cells and their subset levels. One hundred and thirty-eight age- and sex-matched healthy subjects were enrolled in this study. NKT cell and NKT subset levels were measured by flow cytometry. Circulating NKT cell levels were found to vary widely (0.01-5.15%) in the study subjects and to be lower in men than in women (P < 0.05). Notably, gender-related differences in NKT cell levels were more prominent in elderly subjects (P < 0.05). Furthermore, alterations in NKT subset compositions were found in elderly men, in Whom the proportion of CD4+ NKT cells was elevated and that of double-negative NKT cells was reduced. Our data suggest that circulating NKT cells and NKT subset levels are affected by age and gender in the Korean population. (C) 2012 American Society for Histocompatibility and Immunogenetics. Published by Elsevier Inc. All rights reserved.
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