Artículo

Estamos trabajando para incorporar este artículo al repositorio
Consulte la política de Acceso Abierto del editor

Abstract:

The exacerbated local inflammatory response that triggers immunological abortion on CBA/j x DBA/2 murine model depends on environmental factors such as LPS. Since deficient Tlr4 mice are resistant to LPS-induced abortion, the effect of LPS tolerization on the prevention of fetal losses, as well as on the synthesis of placental cytokines on CBA/j x DBA/2 model has been studied. Low doses of LPS were inoculated during pre and post-implantatory stages on CBA/j pregnant mice. In order to investigate tolerization effect, abortogenic doses of LPS were added to placental and splenocyte cul-Results obtained with post-implantatory inoculation of 1μg/day LPS showed a decrease in the abortion rate as well as an IL-6 hyporesponsive to LPS booster, both in placenta and splenocyte cultures. However, stimulation with abortogenic dose of LPS modified TNF-α levels by an increase in placenta but a decrease in splenocyte culture supernatants. Considering these results, it can be concluded that LPS tolerance induction depends on the organ as well as on the cytokine studied.

Registro:

Documento: Artículo
Título:Innate immune response between environmental factors and abortion: Lipopolysaccharide tolerization model during gestation
Autor:Dubinsky, V.; Junovich, G.; Gutiérrez, G.
Filiación:Ciencias Biológicas de la FCEyN de la UBA, Argentina
Ciencias de la UBA, Área Inmunología de la Reproducción
Instituto de Estudios de la Inmunidad Humoral (IDEHU)/Cátedra de Inmunología, FFyB, Universidad de Buenos Aires, Junín 956 4P (1113), Buenos Aires, Argentina
Instituto de Estudios de la Inmunidad Humoral (IDEHU), Cátedra de Inmunología, Universidad de Buenos Aires, Junín 956 4P, 1113 Cd. Auton. de Buenos Aires, Argentina
Palabras clave:Abortion; Cytokines; Innate immune response; Lipopolysaccharide; Tolerization; Murinae
Año:2006
Volumen:40
Número:1
Página de inicio:71
Página de fin:76
Título revista:Acta Bioquimica Clinica Latinoamericana
Título revista abreviado:Acta Bioquim. Clin. Latinoam.
ISSN:03252957
CODEN:ABCLD
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03252957_v40_n1_p71_Dubinsky

Referencias:

  • Clark, D.A., Chaouat, G., Gorczynski, R., Thinking outside the box: Mechanism of environmental selective pressures on the outcome of the materno-fetal relationship (2002) Am J Reprod Immunol, 47 (5), pp. 275-282
  • Ishida, I., Kubo, H., Suzuki, S., Suzuki, T., Akashi, S., Inoue, K., Hipoxia diminishes Toll-like receptor 4 expresion through reactive oxygen species generated by mitochondria in endothelial cells (2002) J Immunol, 169, pp. 2069-2075
  • Vikki, M.A., Toll-like receptors in the cycling female reproductive tract and during pregnancy (2005) Current Women's Health Rev, 1, pp. 35-42
  • Chaouat, G., Synergy of lipopolysaccharide and inflammatory cytokines in murine pregnancy: Alloimmunization prevents abortion but does not affect the induction of preterm delivery (1994) Cell Immunol, 157, pp. 328-340
  • Silver, R.M., Bacterial lipopolysaccharide-mediated fetal death (1995) J Clin Invest, 95, pp. 725-731
  • Normura, F., Akashi, S., Sakako, Y., Sato, S., Kawai, T., Matsumoto, M., Cutting edge: Endotoxin tolerance in mouse peritoneal macrophages correlates with down-regulation of surface Toll-like receptor 4 expression (2000) J Immunol, 164, p. 3476
  • Clark, D.S., McDermott, M.R., Szewczuk, M.R., Impairment of host-versus-graft reaction in pregnant mice. II. Selective suppression of cytotoxic T-cell generation correlates with soluble suppressors activity and with successful allogeneic pregnancy (1980) Cell Immunol, 52, pp. 106-118
  • Gutiérrez, G., Sarto, A., Berod, L., Canellada, A., Gentile, T., Pascualini, S., Regulation of interleukin-6 fetoplacental levels could be involved in the protective effects of low-molecular weight heparin treatment on murine spontaneous abortion (2004) Am J Reprod Immunol, 51, pp. 160-165
  • Suter, M., Butler, J.E., The immunochemistry of sandwich ELISAs. II. A novel system prevents the denaturation of capture antibodies Immunol Lett, 13 (6), pp. 313-316
  • Dresser, D.W., The potentiating effect of pregnancy on humoral immune responses of mice (1991) J Reprod Immunol, 20, pp. 253-266
  • Chaouat, G., Zourbas, S., Ostojic, S., Lappree-Delage, G., Dubanchet, S., Ledee, N., A brief review of recent data on some cytokine expressions at the materno-foetal interface which might challenge the classical Th1/Th2 dichotomy (2002) Am J Reprod Immunol, 53, pp. 241-256
  • Harju, K., Glumoff, V., Hallman, M., Ontogeny of Toll-like receptors Tlr2 and Tlr4 in mice (2001) Pediatr Res, 49, pp. 81-83
  • Murphy, S.P., Fast, L.D., Hanna, N.N., Sharma, S., Uterine NK cells mediate inflammation-induced fetal demise in IL-10-null mice (2005) J Immunol, 175, pp. 4084-4090

Citas:

---------- APA ----------
Dubinsky, V., Junovich, G. & Gutiérrez, G. (2006) . Innate immune response between environmental factors and abortion: Lipopolysaccharide tolerization model during gestation . Acta Bioquimica Clinica Latinoamericana, 40(1), 71-76.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03252957_v40_n1_p71_Dubinsky [ ]
---------- CHICAGO ----------
Dubinsky, V., Junovich, G., Gutiérrez, G. "Innate immune response between environmental factors and abortion: Lipopolysaccharide tolerization model during gestation " . Acta Bioquimica Clinica Latinoamericana 40, no. 1 (2006) : 71-76.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03252957_v40_n1_p71_Dubinsky [ ]
---------- MLA ----------
Dubinsky, V., Junovich, G., Gutiérrez, G. "Innate immune response between environmental factors and abortion: Lipopolysaccharide tolerization model during gestation " . Acta Bioquimica Clinica Latinoamericana, vol. 40, no. 1, 2006, pp. 71-76.
Recuperado de https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03252957_v40_n1_p71_Dubinsky [ ]
---------- VANCOUVER ----------
Dubinsky, V., Junovich, G., Gutiérrez, G. Innate immune response between environmental factors and abortion: Lipopolysaccharide tolerization model during gestation . Acta Bioquim. Clin. Latinoam. 2006;40(1):71-76.
Available from: https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03252957_v40_n1_p71_Dubinsky [ ]