Lymphocyte subpopulations during cytomegalovirus disease in renal transplant recipients
Rev. bras. pesqui. méd. biol
; Braz. j. med. biol. res;36(6): 795-805, June 2003. ilus, tab
Article
em En
| LILACS
| ID: lil-340656
Biblioteca responsável:
BR1.1
RESUMO
We have determined the number of circulating T, B and natural killer cells in renal transplant recipients in order to detect changes during cytomegalovirus (CMV) infections. Serial blood samples were taken from 61 patients on standard triple immunosuppression therapy (cyclosporin A, azathioprine and prednisone). Using two-color flow cytometry analysis, the absolute number of CD3+, CD4+, CD8+, CD19+, CD3+HLA-DR+ and CD16+56+ cells was determined. Forty-eight patients (78.7 percent) developed active CMV infection, and all of them subsequently recovered. Twenty of the infected patients (32.8 percent) presented symptoms compatible with CMV disease during the infectious process. The number of lymphocytes and their main subpopulations were normal before the onset of CMV disease. During the disease there was a decrease followed by a significant increase (P<0.005) in the number of CD3+, CD4+, CD8+ and CD3+HLA-DR+ cells. No significant changes were observed in natural killer cells or B lymphocytes during the disease. We conclude, as observed in all viremic patients recovering from infection, that recovery is associated with an increase in the number of T cell subsets. The monitoring of different lymphocyte subsets along with antigenemia can be extremely useful in the detection of patients at high risk of developing CMV symptoms, allowing the early introduction of antiviral therapy or the reduction of immunosuppression therapy
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Transplante de Rim
/
Infecções por Citomegalovirus
/
Imunossupressores
Tipo de estudo:
Etiology_studies
/
Prevalence_studies
/
Risk_factors_studies
Limite:
Child
/
Child, preschool
/
Female
/
Humans
/
Male
País/Região como assunto:
America do sul
/
Brasil
Idioma:
En
Revista:
Braz. j. med. biol. res
/
Rev. bras. pesqui. méd. biol
Assunto da revista:
BIOLOGIA
/
MEDICINA
Ano de publicação:
2003
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Brasil