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Related Experiment Videos

Programmed T-cell death in experimental chagas disease.

G A DosReis1, M E Fonseca, M F Lopes

  • 1Department of Immunology, Instituto de Microbiologia da Universidade Federal do Rio de Janeiro, Centro de Ciências da Saúde, Brasil. ACBONOMO@omega.LNCC.BR

Parasitology Today (Personal Ed.)
|October 1, 1995
PubMed
Summary

Programmed T-cell death regulates immune responses and may cause immune suppression in infections like Chagas disease. This review examines T-cell death in Trypanosoma cruzi infections and its pathogenic role.

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Evasion of immune responses by Trypanosoma cruzi, the etiological agent of Chagas disease.

Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas·2011

Area of Science:

  • Immunology
  • Cell Biology
  • Infectious Diseases

Background:

  • Programmed cell death in T cells regulates immune response duration and amplitude.
  • T-cell death is implicated in the immunopathogenesis of infectious diseases, particularly viral infections, contributing to immune suppression.
  • Chagas disease, caused by Trypanosoma cruzi, is a relevant model for studying programmed T-cell death in parasitic infections.

Purpose of the Study:

  • To review findings on programmed T-cell death in experimental Trypanosoma cruzi infection.
  • To discuss the differential roles of CD4(+) and CD8(+) T-cell subsets in programmed cell death during infection.
  • To explore the pathogenic aspects of host-parasite interactions involving abnormal T-cell death.

Main Methods:

  • Experimental infection models using Trypanosoma cruzi.

Related Experiment Videos

  • Analysis of programmed cell death in T-cell subsets (CD4(+) and CD8(+)).
  • Review of existing literature and research findings.

    • Main Results:

    • Programmed T-cell death plays a significant role in the immune response to Trypanosoma cruzi.
    • CD4(+) and CD8(+) T-cell subsets exhibit distinct programmed cell death patterns during infection.
    • Abnormal or excessive programmed T-cell death may contribute to the pathogenesis of Chagas disease.

    Conclusions:

    • Programmed T-cell death is a critical factor in regulating immune responses during Trypanosoma cruzi infection.
    • Understanding T-cell subset-specific death mechanisms is crucial for elucidating Chagas disease pathogenesis.
    • Targeting programmed cell death pathways could offer therapeutic strategies for managing infectious diseases.