Immunomodulation of Lactobacillus reuteri CRL1324 on Group B Streptococcus Vaginal Colonization in a Murine Experimental Model.
Am J Reprod Immunol
; 75(1): 23-35, 2016 Jan.
Article
em En
| MEDLINE
| ID: mdl-26547516
ABSTRACT
PROBLEM:
Maternal Group B Streptococcus (GBS) colonization is a risk factor for infectious disease in newborns. One promising strategy is the modulation of vaginal defense to increase the host's ability to combat infection. METHOD OF STUDY The effect of intravaginal (i.va.) Lactobacillus reuteri CRL1324 inoculation on different immune cell populations, cytokines, and immunoglobulin isotypes in a murine model of GBS vaginal colonization was evaluated.RESULTS:
Seven i.va. inoculations of L. reuteri CRL1324 previous to GBS challenge showed an immunomodulatory effect on the cells and mediators of innate immunity, decreasing the number of neutrophils induced by the pathogen and increasing the activated macrophage population. Moreover, increases in B lymphocytes and IgA and IgG subclasses were observed in mice inoculated with L. reuteri CRL1324 and then challenged with GBS.CONCLUSION:
Lactobacillus reuteri CRL1324 shows a protective effect against GBS colonization that could be mediated by the modulation of the immune response.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Infecções Estreptocócicas
/
Streptococcus
/
Vagina
/
Linfócitos B
/
Limosilactobacillus reuteri
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Macrófagos
/
Neutrófilos
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Animals
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Female
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Humans
Idioma:
En
Ano de publicação:
2016
Tipo de documento:
Article