Key result
T-cell receptor Vbeta8.1 peptide retarded the development of coxsackievirus-induced cardiopathology and prolonged the life span of retrovirus-infected mice compared to untreated controls.
Why the study?
Does T-cell receptor Vbeta8.1 peptide reduce coxsackievirus-induced cardiopathology and improve life span in mice with murine acquired immunodeficiency syndrome?
Does T-cell receptor Vbeta8.1 peptide reduce coxsackievirus-induced cardiopathology and improve life span in mice with murine acquired immunodeficiency syndrome?
TCR Vbeta8.1 peptide immunotherapy may reduce coxsackievirus-induced cardiopathology and improve survival in a murine model of acquired immunodeficiency syndrome.
Answers are grounded in this paper and cite their sources.
Hypothesis-generating for TCR Vbeta8.1 peptide in murine viral myocarditis; should not yet alter clinical practice.
Infection of people with human immunodeficiency virus (HIV) as well as LP-BM5 infection in mice results in progressive deterioration of the immune system in the majority of untreated hosts. Peptide immunotherapy has been shown to be effective in the stimulation or immunoregulation of T-helper 1 (T(H)1) and T-helper 2 (T(H) 2) response subsets. In murine acquired immunodeficiency syndrome (AIDS), T(H)1 deficiency enables the host to be susceptible to coxsackievirus infection, inducing cardiopathology in a short period. T-cell receptor (TCR) Vbeta8.1 peptide, a 16-mer peptide containing the entire CDR1 segment and part of the FR2 region of human Vbeta8, showed both an immunoregulating and immunostimulating effect in murine AIDS. TCR Vbeta8.1 peptide acts on T cells promoting interleukin-2 production and therefore enhancing a cell-mediated immune response. It retarded development of cardiopathology due to coxsackievirus infection. Retrovirus-infected mice treated with the peptide showed a longer life span than the nontreated, retrovirus-infected animals.
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Sepúlveda et al. (2003) studied Murine acquired immunodeficiency syndrome (AIDS) and coxsackievirus infection. T-cell receptor (TCR) Vbeta8.1 peptide vs. Nontreated, retrovirus-infected animals was evaluated on Cardiopathology development and life span. T-cell receptor Vbeta8.1 peptide retarded the development of coxsackievirus-induced cardiopathology and prolonged the life span of retrovirus-infected mice compared to untreated controls.
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