Publications by authors named "Bruna M Valente"

Background: About 5-10% of breast cancer cases are related to genetic and hereditary factors. The application of Next Generation Sequencing (NGS) in oncology has allowed the identification of genetic variants present in several genes related to the increased risk of breast cancer. This study aimed to determine the frequency of germline genetic variants in patients with a family and/or personal history of breast cancer.

View Article and Find Full Text PDF

Trypanosoma cruzi has three biochemically and morphologically distinct developmental stages that are programmed to rapidly respond to environmental changes the parasite faces during its life cycle. Unlike other eukaryotes, Trypanosomatid genomes contain protein coding genes that are transcribed into polycistronic pre-mRNAs and have their expression controlled by post-transcriptional mechanisms. Transcriptome analyses comparing three stages of the T.

View Article and Find Full Text PDF

Trypanosoma cruzi, the protozoan that causes Chagas disease, has a complex life cycle involving several morphologically and biochemically distinct stages that establish intricate interactions with various insect and mammalian hosts. It has also a heterogeneous population structure comprising strains with distinct properties such as virulence, sensitivity to drugs, antigenic profile and tissue tropism. We present a comparative transcriptome analysis of two cloned T.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the immune response to ribosomal protein L7a from the Chagas disease-causing agent, focusing on its amino acid repeats.
  • Mice vaccinated with the full-length protein showed strong antibody and immune activity, while those given truncated versions exhibited low responses and were less protected against infection.
  • Importantly, immunization with the repeat-only version led to increased disease severity and reduced antibody production, suggesting that the repeat domain acts as an immunosuppressive factor.
View Article and Find Full Text PDF