Research Topic: Adaptive immunity

Dectin-1 and dectin-2 drive protection against Sporothrix brasiliensis in experimental sporotrichosis

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Researchers studied how the body fights a dangerous fungus called Sporothrix brasiliensis that causes sporotrichosis. They found that two immune receptors called dectin-1 and dectin-2 are crucial for protecting against this infection in mice. Surprisingly, these receptors work by activating killer immune cells and controlling regulatory immune cells, rather than through the typical immune response pathway scientists expected.

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Immunomodulatory function of chitosan is dependent on complement receptor 3

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This study reveals how the human immune system recognizes chitosan, a natural component found in the walls of disease-causing fungi like Aspergillus and Cryptococcus. Researchers discovered that immune cells use a protein called CR3 on their surface to detect and respond to chitosan by producing inflammatory chemicals that help fight infection. When chitosan works together with fungal proteins, it can boost the immune system’s response even more effectively, suggesting new ways to enhance immunity against fungal infections.

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