Immune 76: Macrophages to the rescue with Juliet Morrison
Jan 30, 2024
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Juliet Morrison discusses pleural macrophages translocating to the lungs during infection to enhance influenza outcomes. They explore the importance of macrophages in viral infections, diversity in graduate applications, macrophage migration, Dengue vaccine feasibility, and navigating disease topics on social media.
Pleural macrophages are crucial in improving influenza outcomes by modulating inflammatory responses.
Transcriptomic analysis shows variations in cytokine profiles and immune responses to different influenza strains.
Future research involves modifying plural macrophages for potential therapeutic strategies in lung inflammatory diseases.
Deep dives
Plural Macrophages and Inflammation Response
Plural macrophages play a crucial role in responding to influenza infection in the lung. Depletion experiments using clodronate liposomes showed that when the plural macrophages were eliminated, the severity of the disease increased, indicating their essential role in modulating inflammatory responses and improving disease outcomes.
Transcriptomics and Cell Migration
Transcriptomic analysis revealed distinct signatures in mice infected with different influenza strains, indicating variability in cytokine profiles and immune responses. Efforts to understand the triggers for plural macrophage migration and cytokine-mediated mechanisms are underway, aiming to uncover the factors influencing cell movement and the underlying inflammatory processes.
Future Research Directions
Future research focuses on ex vivo modification of plural macrophages to explore potential therapeutic strategies for targeting immune responses in lung inflammatory diseases. Additionally, investigations into mitochondrial abnormalities associated with STAT2 mutations and interactions between viral proteins and NF-CAPA B pathway in SARS-CoV-2 infection are ongoing, offering new insights into immune regulation in various diseases.
Challenges in Dengue Vaccine Development
Concerns regarding dengue vaccine development highlight the complexities of achieving balanced immunity to all four serotypes, essential for effective protection against severe disease. The need to address serological profiles and immune responses remains a challenge in designing an optimal vaccine strategy against dengue virus.
Personal and Professional Insights
Juliet Morrison discusses her scientific journey, current research interests, and future perspectives on immune responses in viral infections and inflammatory diseases. She emphasizes the significance of pluripotent macrophages in modulating immune responses and highlights ongoing efforts to advance understanding of immune regulation and therapeutic interventions.
Juliet Morrison joins Immune to discuss her career and the research of her laboratory showing that pleural macrophages translocate to the lung during infection to promote improved influenza outcomes.