Publications by authors named "Andrei Giacchetto Felice"

Ticks have coevolved with their hosts over millions of years, developing the ability to evade hemostatic, inflammatory, and immunological responses. Salivary molecules from these vectors bind to cytokines, chemokines, antibodies, complement system proteins, vasodilators, and molecules involved in coagulation and platelet aggregation, among others, inhibiting or blocking their activities. Initially studied to understand the complexities of tick-host interactions, these molecules have been more recently recognized for their potential clinical applications.

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Background: Campylobacter spp. have been reported as a common cause of gastroenteritis in humans in many countries. However, in Brazil there is insufficient data to estimate the impact of Campylobacter in public health.

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Article Synopsis
  • TREM2 is an immunoreceptor that interacts with various non-protein ligands and is linked to different diseases, but how it works with these ligands is not well understood.
  • We conducted a study using molecular docking and simulations to explore these interactions and found that TREM2 has high affinity for 12 non-protein ligands, with cardiolipin showing the highest affinity.
  • The research highlights specific regions of TREM2 that are crucial for ligand binding, suggesting these areas could be targeted for new drug development.
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Histoplasmosis is a widespread systemic disease caused by , prevalent in the Americas. Despite its significant morbidity and mortality rates, no vaccines are currently available. Previously, five vaccine targets and specific epitopes for were identified.

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Article Synopsis
  • * This study aimed to identify potential protein targets for vaccine candidates and drug development by analyzing genome sequences of four fungal strains using bioinformatics techniques like reverse vaccinology and subtractive genomics.
  • * Four promising protein candidates for vaccine development were identified, along with four natural compounds that may effectively interact with these proteins, offering hope for better treatments and preventive measures against histoplasmosis.
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Article Synopsis
  • Probiotics are microorganisms that promote health, especially by modulating immune responses and reducing inflammation.
  • This study focused on nine strains of a specific probiotic bacteria, analyzing their genetic makeup to identify genes that contribute to their health benefits for humans.
  • Key findings included shared genes linked to stress response, adhesion to human proteins, and the production of beneficial compounds, highlighting the potential of these strains to support gut health and overall wellness.
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The genus comprises an important group of ubiquitous bacteria of marine systems with a high infectious capacity for humans and fish, which can lead to death or cause economic losses in aquaculture. However, little is known about the evolutionary process that led to the adaptation and colonization of humans and also about the consequences of the uncontrollable use of antibiotics in aquaculture. Here, comparative genomics analysis and functional gene annotation showed that the species more related to humans presented a significantly higher amount of proteins associated with colonization processes, such as transcriptional factors, signal transduction mechanisms, and iron uptake.

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The Gram-negative bacillus a member of family, is an opportunistic nosocomial pathogen commonly found in hospital outbreaks that can cause infections in the urinary tract, bloodstream, central nervous system and pneumonia. Because strains are resistant to several antibiotics, it is critical the need for effective treatments, including new drugs and vaccines. Here, we applied reverse vaccinology and subtractive genomic approaches for the prediction of potential vaccine and drug targets against 59 strains of .

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