期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1980
卷号：77
期号：3
页码：1597-1601
DOI：10.1073/pnas.77.3.1597
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：The ontogeny of Ia-bearing accessory cells was studied in mice. Ia-bearing adherent cells from the thymus, consisting predominantly of macrophages, were found from birth. These adherent cells were able to present antigen, as measured by their ability to induce immune T-cell proliferation. In contrast, Ia-bearing adherent cells from the spleen were not found until the second week of life, and their antigen-presentation function was not present until later. The differential ontogeny of Ia-bearing accessory cells at these sites may be important in both development of immune competence and the restriction of autoimmunity.
