In vitro T cell hyperreactivity in Obese strain (OS) chickens is due to a defect in nonspecific suppressor mechanism(s).
In vitro T cell hyperreactivity in Obese strain (OS) chickens is due to a defect in nonspecific suppressor mechanism(s).
复制标题
肥胖品系 (OS) 鸡的体外 T 细胞高反应性是由于非特异性抑制机制的缺陷造成的。
DOI：
10.4049/jimmunol.135.4.2458
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发表时间：
1985
影响因子：
4.4
通讯作者：
G. Wick
中科院分区：
文献类型：
--
作者：
G. Krömer;K. Schauenstein;N. Neu;K. Stricker;G. Wick
Spontaneous autoimmune thyroiditis of OS chickens is associated with a marked hyperreactivity of the T cell system. The purpose of the present study was to investigate the underlying regulatory mechanisms. Co-cultivation experiments between Con A-stimulated OS and NWL lymphocytes in communicating cultures revealed soluble regulatory factors to be responsible for the observed functional differences: the high proliferative response to Con A and hyperproduction of IL 2 of OS cells was found to be due to a deficiency in the conditioned medium of dialyzable inhibitory factor(s) that regulate IL 2 secretion of NWL lymphocytes. Furthermore, sera of young NWL chickens were found to profoundly inhibit the IL 2-promoted lymphoblast proliferation. This IL 2 antagonizing activity is lost with age (3 to 6 yr) and was found to be significantly diminished in OS birds throughout ontogeny, thus pointing to possible parallels between immune regulatory dysfunction in autoimmunity and in physiologic aging. Both enhanced T cell response and the defect in serum suppressor were inherited by (OS X CB)F1 animals, indicating that these two aberrations may be related to each other.
