DIFFERENT LYMPHOCYTE COMPARTMENTS RESPOND DIFFERENTLY TO MITOGENIC STIMULATION AFTER THERMAL-INJURY

被引:40
作者
DEITCH, EA
XU, DZ
QI, L
机构
[1] Department of Surgery, Louisiana State University, Medical Center, Shreveport, LA 71130-3932
关键词
D O I
10.1097/00000658-199001000-00013
中图分类号
R61 [外科手术学];
学科分类号
摘要
Because of the association between the development of an immunocompromised state and an increased risk of infection, increasing attention has been focused on describing and characterizing the immune consequences of thermal injury. Results of human studies are largely based on the in vitro responsiveness of peripheral blood leukocytes, while splenocytes are generally used in the animal studies. Because the response of lymphocytes from different lymphocyte compartments may vary, we compared the responses of murine peripheral blood, splenic, Peyer's patch, and mesenteric lymph node lymphocytes to a battery of mitogens after thermal injury. Burn-induced immunosuppression was maximal in the splenic lymphocyte compartment, where the responses to all three test mitogens were depressed throughout the 28-day postburn study period. Although the PHA-induced mitogen response of lymphocytes from the other three lymphoid compartments remained suppressed throughout the study period, the response to the mitogens Con-A and PWM generally returned to normal or supranormal levels by the seventh postburn day. Therefore it appears that the effect of a thermal injury on lymphocyte function varies according to the lymphocyte compartment examined and the mitogen tested. These results raise the question of whether animal studies using splenic lymphocytes can be correlated with human studies performed on circulating blood lymphocytes.
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页码:72 / 77
页数:6
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