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Immunomodulating effects of the purified hev b 13 fraction on septic rats / Efeitos imunomoduladores da fração purificada hev b 13 em ratos com sepse
Alves, Maxley Martins; Araújo, Lilhian Alves de; Mrué, Fátima; Gomes, Clayson Moura; Oliveira, Milton Adriano Pelli de; Neves, Roberpaulo Anacleto; Silva-Júnior, Nelson Jorge da; Melo-Reis, Paulo Roberto de.
  • Alves, Maxley Martins; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
  • Araújo, Lilhian Alves de; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
  • Mrué, Fátima; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
  • Gomes, Clayson Moura; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
  • Oliveira, Milton Adriano Pelli de; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
  • Neves, Roberpaulo Anacleto; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
  • Silva-Júnior, Nelson Jorge da; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
  • Melo-Reis, Paulo Roberto de; Pontifical Catholic University of Goiás. Post-Graduate Program in Environmental Sciences and Health. Laboratory of Experimental and Biotechnological Studies. BR
ABCD (São Paulo, Impr.) ; 30(2): 93-97, Apr.-June 2017. tab, graf
Article in English | LILACS | ID: biblio-885710
ABSTRACT
ABSTRACT

Background:

Sepsis is a potentially life-threatening complication of an infection that occurs when chemicals released into the bloodstream to fight the infection trigger inflammatory responses throughout the body, especially in the acute phase of the disease, producing excessive pro-inflammatory cytokines, leading to multiple organ injury and death. The Hev b 13 fraction has demonstrated biological activity capable of inducing IL-10 production and shrinking inflammatory disease lesions.

Aim:

To investigate the immunomodulating effects of the Hev b 13 fraction on septic rats.

Methods:

Acinetobacter baumannii was injected into the peritoneal cavity of the animals after sustaining a lesion in the pancreas, with the stomach as an entry point. After 10 h of infection, they were euthanized for blood and lung collection, followed by total and differential leukocyte count, determination of cytokine level and histopathological analysis.

Results:

Administering a single dose of the Hev b 13 fraction 2 h after sepsis induction significantly decreased total leukocyte count. Higher IL-10 and IL-4 and lower IL-6 production shrank the lung tissue lesions compared to the control groups.

Conclusion:

The Hev b 13 fraction exhibits an anti-inflammatory tendency, with potential for sepsis treatment.
RESUMO
RESUMO Racional Sepse se correlaciona com a ruptura do complexo equilíbrio entre os mediadores inflamatórios, que principalmente na fase aguda da doença, produz exacerbadamente citocinas pró-inflamatórias levando a lesão de múltiplos órgãos e morte. A fração Hev b 13 tem demonstrado atividade biológica capaz de induzir a produção de IL-10 e regredir lesões de doenças inflamatórias.

Objetivo:

Investigar os efeitos imunomoduladores da fração Hev b 13 em ratos com sepse.

Métodos:

Foi injetado Acinetobacter baumannii na cavidade peritoneal dos animais após lesão no pâncreas e estômago como porta de entrada. Após 10 h de infecção, foi realizada eutanásia para coleta de sangue e pulmões, em seguida, contagem total e diferencial de leucócitos, dosagem de citocinas e histopatologia para análise.

Resultados:

A administração de dose única da fração Hev b 13, 2 h após a indução de sepse, diminuiu significativamente a contagem total de leucócitos. Associado a maior produção de IL-10 e IL-4, e menor de IL-6, atenuou as lesões nos tecidos pulmonares em comparação com os grupos controles.

Conclusão:

A fração Hev b 13 apresenta tendência anti-inflamatória, com potencialidades no tratamento da sepse.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Plant Proteins / Sepsis / Antigens, Plant / Immunomodulation / Phytotherapy Limits: Animals Language: English Journal: ABCD (São Paulo, Impr.) Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Pontifical Catholic University of Goiás/BR

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Full text: Available Index: LILACS (Americas) Main subject: Plant Proteins / Sepsis / Antigens, Plant / Immunomodulation / Phytotherapy Limits: Animals Language: English Journal: ABCD (São Paulo, Impr.) Year: 2017 Type: Article Affiliation country: Brazil Institution/Affiliation country: Pontifical Catholic University of Goiás/BR