Research Topic: Innate immunity

The C-type lectin receptor Dcir (Clec4a2) restrains Aspergillus fumigatus elimination by limiting the degranulatory activity of neutrophils

This study reveals that a receptor called Dcir on immune cells called neutrophils actually prevents effective killing of the fungus Aspergillus fumigatus by limiting the release of antibacterial granules. When researchers removed Dcir from mice, their neutrophils became more effective at fighting the fungal infection. This suggests that blocking Dcir might help patients with fungal respiratory infections clear the pathogen more effectively.

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Ex Vivo Host Transcriptomics During Cryptococcus neoformans, Cryptococcus gattii, and Candida albicans Infection of Peripheral Blood Mononuclear Cells From South African Volunteers

Researchers studied how human immune cells respond to three different fungal infections that commonly affect people with weakened immune systems. By examining gene activity in blood cells exposed to these fungi, they discovered that each fungus triggers different immune responses, with Candida albicans causing a much stronger reaction than the two Cryptococcus species. Only one shared immune pathway was activated by all three fungi, suggesting each infection requires different immune mechanisms to fight off. These findings could help develop new treatments for serious fungal infections.

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Immunomodulatory activity of Pleurotus pulmonarius crude extract to human monocyte against Cryptococcus neoformans

This research shows that an extract from the Phoenix oyster mushroom (Pleurotus pulmonarius) can boost the body’s immune cells to fight dangerous fungal infections caused by Cryptococcus neoformans. When immune cells are pre-exposed to this mushroom extract and then encounter the fungus, they become more effective at killing it through increased production of immune-signaling molecules and reactive oxygen species. This natural supplement approach offers a promising alternative to traditional antifungal drugs, which often have significant side effects and can lead to drug resistance.

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PTP1B deficiency in myeloid cells increases susceptibility to Candida albicans systemic infection by modulating antifungal immunity

This research shows that a protein called PTP1B plays an important role in protecting the body against dangerous fungal infections caused by Candida albicans. When mice lacked this protein in their immune cells, they were much more susceptible to the infection and showed severe illness. The study found that PTP1B helps immune cells like macrophages and neutrophils fight the fungus effectively, and blocking this protein could actually make fungal infections worse.

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