host-pathogen interaction – Page 2

Key Fungal Secreted Proteases in Coccidioidomycosis

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Researchers studied how a dangerous fungus called Coccidioides causes disease by examining special proteins called proteases that the fungus secretes. They found that blocking these proteases prevented the fungus from forming the spherule structures that allow it to spread inside infected people. This discovery could lead to new treatments for coccidioidomycosis, a serious infection that affects people in the Southwest United States.

Dynamic proteomic changes and ultrastructural insights into Pochonia chlamydosporia’s parasitism of Parascaris equorum eggs

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Scientists studied how a special fungus called Pochonia chlamydosporia attacks and destroys parasitic worm eggs. Using advanced microscopy and protein analysis, they tracked the fungus through three stages of infection and identified the specific proteins and processes it uses to break down the worm eggs. This research helps us understand how this fungus works so it can be better used as a natural pest control method to protect animals from harmful parasites.

A human-relevant alternative infection model for mucormycosis using the silkworm Bombyx mori

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Researchers developed a silkworm-based model to study mucormycosis, a deadly fungal infection. The model reproduces the same disease patterns and risk factors seen in humans, including effects of steroids and iron levels. Importantly, it successfully predicted how well antifungal drugs work against the infection, offering a faster and more ethical alternative to mammal testing for developing new treatments.

Essential role of sugar transporters BbStp13 in fungal virulence, conidiation, and cell wall integrity in entomopathogenic fungus Beauveria bassiana

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Researchers studied a fungus called Beauveria bassiana that is used to control insect pests. They found that a protein called BbStp13, which helps the fungus absorb sugars, is crucial for the fungus to infect insects effectively and make spores for spreading. When they removed this protein, the fungus became less dangerous to pests and couldn’t reproduce as well, especially when there wasn’t much food available. These findings could help make this natural pest control method even better.

Aspergillus fumigatus dsRNA virus promotes fungal fitness and pathogenicity in the mammalian host

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A virus that infects the fungus Aspergillus fumigatus makes the fungus more dangerous by helping it survive stress and resist immune cell attack. When researchers removed the virus from the fungus, it became weaker and less harmful to infected mice. Treating infected mice with an antiviral drug called ribavirin reduced the virus, lowering fungal burden and improving survival, suggesting that targeting fungal viruses could be a new way to treat serious fungal infections.

Histological Dissection of Fusarium-Banana Interaction Using a GFP-Tagged Subtropical Race 4 Strain of Fusarium oxysporum f. sp. cubense on Banana Cultivars with Differing Levels of Resistance

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Researchers used fluorescently-labeled fungal strains to visualize how banana wilt disease spreads inside banana plants. They found that resistant banana varieties can slow down the fungus by forming blockages (called tyloses) in their water-conducting vessels, though the fungus can still initially enter the plant. The study showed that the rhizome, an underground stem-like structure, is the key location where resistant plants successfully contain the fungus, which helps explain why some banana varieties are naturally more resistant to this devastating disease.

A 3D Fusarium keratitis model reveals isolate-specific adhesion and invasion properties in the Fusarium solani species complex

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Researchers studied three species of Fusarium fungus that cause serious eye infections. They found that one species (F. keratoplasticum) is much more dangerous than the others, invading deeper into the eye and causing more damage. Using a new 3D model that mimics the structure of the human cornea, they discovered that Fusarium fungi penetrate much deeper than other fungal pathogens, which helps explain why eye infections from these fungi are so difficult to treat and why patients often lose their vision.

A rapid and efficient in vivo inoculation method for introducing tree stem canker pathogens onto leaves: suitable for large-scale assessment of resistance in poplar breeding progeny

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Researchers developed a faster, easier method to test whether poplar trees can resist stem canker diseases caused by fungi. Instead of using time-consuming tests on woody stems, they inoculated fungal pathogens directly onto leaves and measured disease symptoms after 5 days. This new leaf-based method works just as well as traditional methods but is much quicker and requires fewer resources, making it ideal for testing large numbers of hybrid poplar trees in breeding programs.

John Perfect Shares Insights on Infectious Diseases, Antifungal Therapy, and Drug Resistance

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Dr. John Perfect, a leading expert in fungal infections, shares his 48 years of experience studying infectious diseases, particularly focusing on Cryptococcus and candida infections. He discusses how antifungal medications have evolved from highly toxic drugs to more effective treatments, while emphasizing the need for faster-acting drugs that require shorter treatment periods. The interview covers emerging diagnostic tools using molecular methods, the promise of combining drugs with immune-boosting therapies, and the importance of understanding how fungi survive in the human body to develop better treatments.

Musculoskeletal Manifestations of Disseminated Fungal Infections

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Fungal infections can spread to bones and joints, causing serious complications especially in people with weakened immune systems. These infections are tricky to diagnose because their symptoms are similar to bacterial infections or other diseases. Treatment typically involves antifungal medications and sometimes surgery to remove infected tissue. Early detection and aggressive treatment are crucial for better patient outcomes.

Research Keyword: host-pathogen interaction