Immune Responses Induced by Peptides from Leishmania amazonensis
Author Information
Author(s): Pereira Bernardo AS, Silva Franklin S, Rebello Karina M, Marín-Villa Marcel, Traub-Cseko Yara M, Andrade Thereza CB, Bertho Álvaro L, Caffarena Ernesto R, Alves Carlos R
Primary Institution: Laboratório de Biologia Molecular e Doenças Endêmicas, IOC, Fiocruz, Rio de Janeiro, Brasil
Hypothesis
Can peptides derived from the COOH-terminal extension of cysteine proteinase B influence immune responses during Leishmania amazonensis infection in mice?
Conclusion
Some peptides from the COOH-terminal extension of cysteine proteinase B may influence host immune responses in murine infections, aiding Leishmania survival.
Supporting Evidence
- Peptides derived from the COOH-terminal extension of cysteine proteinase B were predicted to bind to MHC molecules.
- In vitro assays showed that these peptides could induce cell proliferation and cytokine expression.
- Different mouse strains exhibited varying immune responses to the peptides.
Takeaway
The study found that certain proteins from a parasite can change how the immune system reacts, which might help the parasite survive better.
Methodology
The study used in silico predictions to identify peptides and conducted in vitro assays to test their effects on immune responses in different mouse strains.
Limitations
The study primarily focused on a limited number of peptides and their effects, which may not represent the full range of immune responses.
Participant Demographics
Female 5-7 week old specific pathogen-free mice (BALB/c and CBA strains).
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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