Migration of T-lymphocytes into bone marrow as an initial response to stress

From 6 to 9 h after the beginning of the response to stress caused by immobilization for 6 h, cells with antigenic (θ-antigen) and functional (helper cells) characteristics of T-lymphocytes appeared in the bone marrow of CBA mice. Migration of T-lymphocytes into the bone marrow is regarded as a mechanism for increasing the nonspecific reactivity of the body.