Kinetics of regulatory dendritic cells in inflammatory responses during Trypanosoma evansi infection

H. Mekata, S. Konnai, C. N. Mingala, N. S. Abes, C. A. Gutierrez, A. P. Dargantes, W. H. Witola, N. Inoue, M. Onuma, S. Murata, K. Ohashi

Research output: Contribution to journalArticle

Abstract

Trypanosoma evansi (T. evansi) causes a wasting disease in almost all mammals. Trypanosoma evansi infection gives rise to the inflammatory responses that contribute to the development of inflammation-associated tissue injury. To determine what kinds of inflammatory molecules play roles in the pathogenicity of T. evansi infection, polymerase chain reaction array analysis was performed on samples from the infected and uninfected mice. The inflammatory cytokine and chemokine storm, caused mainly by macrophages, was observed. On the other hand, the expression levels of Ccl8 and Il10 in splenocytes were also markedly increased. These results suggested an augmentation in the number and activity of regulatory dendritic cells (DCs). Therefore, the kinetics of regulatory DCs in T. evansi-infected mice were investigated. During T. evansi infection, the regulatory DCs became prevalent, with reducing the amount of inflammatory DCs. Interestingly, when the regulatory DCs were implanted into T. evansi-infected mice, the survival was prolonged, and the expression levels of inflammatory molecules were suppressed. Taken together, these results showed that a subset of regulatory DCs acted as a potential regulator of the inflammatory responses.

Original languageEnglish (US)
Pages (from-to)318-329
Number of pages12
JournalParasite Immunology
Volume34
Issue number6
DOIs
StatePublished - Jun 2012
Externally publishedYes

Fingerprint

Trypanosoma
Dendritic Cells
Infection
Wasting Syndrome
Chemokines
Interleukin-10
Virulence
Mammals
Macrophages
Cytokines
Inflammation
Polymerase Chain Reaction
Wounds and Injuries

Keywords

  • CCL8
  • Cytokine storm
  • IL-10
  • Regulatory dendritic cell
  • T. evansi

ASJC Scopus subject areas

  • Parasitology
  • Immunology

Cite this

Mekata, H., Konnai, S., Mingala, C. N., Abes, N. S., Gutierrez, C. A., Dargantes, A. P., ... Ohashi, K. (2012). Kinetics of regulatory dendritic cells in inflammatory responses during Trypanosoma evansi infection. Parasite Immunology, 34(6), 318-329. DOI: 10.1111/j.1365-3024.2012.01362.x

Kinetics of regulatory dendritic cells in inflammatory responses during Trypanosoma evansi infection. / Mekata, H.; Konnai, S.; Mingala, C. N.; Abes, N. S.; Gutierrez, C. A.; Dargantes, A. P.; Witola, W. H.; Inoue, N.; Onuma, M.; Murata, S.; Ohashi, K.

In: Parasite Immunology, Vol. 34, No. 6, 06.2012, p. 318-329.

Research output: Contribution to journalArticle

Mekata, H, Konnai, S, Mingala, CN, Abes, NS, Gutierrez, CA, Dargantes, AP, Witola, WH, Inoue, N, Onuma, M, Murata, S & Ohashi, K 2012, 'Kinetics of regulatory dendritic cells in inflammatory responses during Trypanosoma evansi infection' Parasite Immunology, vol 34, no. 6, pp. 318-329. DOI: 10.1111/j.1365-3024.2012.01362.x
Mekata H, Konnai S, Mingala CN, Abes NS, Gutierrez CA, Dargantes AP et al. Kinetics of regulatory dendritic cells in inflammatory responses during Trypanosoma evansi infection. Parasite Immunology. 2012 Jun;34(6):318-329. Available from, DOI: 10.1111/j.1365-3024.2012.01362.x

Mekata, H.; Konnai, S.; Mingala, C. N.; Abes, N. S.; Gutierrez, C. A.; Dargantes, A. P.; Witola, W. H.; Inoue, N.; Onuma, M.; Murata, S.; Ohashi, K. / Kinetics of regulatory dendritic cells in inflammatory responses during Trypanosoma evansi infection.

In: Parasite Immunology, Vol. 34, No. 6, 06.2012, p. 318-329.

Research output: Contribution to journalArticle

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