Susceptibility to cytomegalovirus infection may be dependent on the cytokine response to the virus

被引:17
作者
Geist, LJ
Hinde, SL
机构
[1] Univ Iowa, Coll Med, Dept Internal Med, Iowa City, IA 52242 USA
[2] Dept Vet Affairs, Iowa City, IA USA
关键词
interleukin-10; viral infection; cytomegalovirus; genetic susceptibility;
D O I
10.2310/6650.2001.33788
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: Cytomegalovirus (CMV) infection is an important cause of morbidity and mortality in an immunocompromised host. Pulmonary infection with CMV results in an inflammatory response, which includes the local production of cytokines. Cytokine production stimulated by CMV infection serves to activate a series of immunologic responses involved in viral clearance. Previous work has demonstrated that different mouse strains express variable sensitivity to CW infection. Methods: Using mouse strains that express sensitive (BALB/cj) and resistant (C57BL/6) CMV phenotypes, we asked whether the differences in susceptibility to infection were caused by differences in pulmonary cytokine production after intraperitoneal infection with CMV. Results: C57 mice demonstrated a higher total bronchoalveolar lavage (BAL) and BAI, lymphocyte count at 3 and 7 days after intraperitoneal infection compared with BALB mice. There were no differences in BAI. cytokine production; however, we were able to demonstrate differences in CMV DNA load in the lungs of BALB mice compared with that of C57 mice. In addition, there appeared to be increased whole-lung production of the T(H)2 cytokine IL-10 in the BALB mice versus the C57 mice. Conclusions: This observation suggests that the genetic susceptibility to CMV infection may, in part, be regulated by differences in cytokines production within the local environment.
引用
收藏
页码:434 / 441
页数:8
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