antifungal resistance – Page 17

The expression of fungal CotH, human glucose-regulated protein 78 (GRP78), and predicted miRNAs in macrophages and diabetic mice infected with Rhizopus oryzae

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Mucormycosis is a serious fungal infection caused by Rhizopus oryzae that is particularly dangerous for people with diabetes. This study shows that a fungal protein called CotH3 attaches to a human cell receptor called GRP78, allowing the fungus to invade cells more easily in diabetic patients. The research found that diabetes increases GRP78 production, making fungal invasion more likely, while antifungal treatment (liposomal amphotericin B) can reduce the expression of both CotH3 and GRP78.

Case Commentary: Successful use of olorofim for the treatment of multi-drug-resistant Lomentospora prolificans infection in a child

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A young girl contracted a dangerous drug-resistant fungal infection in her knee after an injury, which failed to respond to standard antifungal treatments. Doctors obtained special access to an experimental antifungal drug called olorofim through a compassionate use program. The child showed improvement within two weeks and was completely cured after six months of treatment with no signs of the infection returning two years later, making this the first successful case of this new drug being used in a child.

Caspofungin therapy in prosthetic valve endocarditis and candidemia due to itraconazole-resistant Candida glabrata (Nakaseomyces glabratus): A case report

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A 13-year-old boy developed a serious fungal infection of his heart valve after surgery. The infection was caused by a resistant yeast that didn’t respond to initial antifungal treatment. Doctors used molecular testing to identify the exact fungal species and tested how it responded to different medications. After switching to a different antifungal drug called caspofungin, the patient recovered completely and remained healthy.

Distribution of fungal agents in the respiratory system of patients with underlying lung diseases; molecular identification and antifungal susceptibility profiles

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This research examined fungal infections in hospitalized patients with lung diseases in Iran, identifying which fungi were most common and which antifungal medications worked best against them. Researchers found that Candida albicans and Aspergillus flavus were the most prevalent fungi, particularly in COPD patients. Notably, some Candida isolates showed resistance to certain antifungal drugs, particularly voriconazole. The study emphasizes the importance of proper fungal identification and susceptibility testing for effective treatment.

Characterization of ORF19.7608 (PPP1), a biofilm-induced gene of Candida albicans

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Researchers studied a gene called PPP1 in Candida albicans, a common fungal infection in hospitals. They found that this gene is highly active when the fungus forms protective biofilms on medical devices like catheters. Although the protein appears in a distinctive spotted pattern only during biofilm formation, removing this gene did not prevent biofilm formation or affect how the fungus responds to stress or antifungal drugs.

Persister cells in human fungal pathogens

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Some fungal infections fail to respond to antifungal drugs even when the fungus should be susceptible to treatment. This happens because certain fungal cells can enter a dormant ‘sleep-like’ state that helps them survive drug exposure. These dormant cells, called persisters, are able to hide from medications by reducing their metabolism and enhancing their protective defenses. Understanding how these persister cells form and survive could lead to better treatments for serious fungal infections.

MycoNews 2022: editorial, news, reports, awards, personalia, and book news

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Mycology is experiencing rapid growth in public awareness and scientific recognition. Popular books and films about fungi have dramatically increased interest in the field. The International Mycological Community celebrated major achievements in 2022, with prominent conferences and awards recognizing outstanding research and contributions to understanding fungi’s vital roles in nature and human health.

Invasive Candidiasis in Contexts of Armed Conflict, High Violence, and Forced Displacement in Latin America and the Caribbean (2005–2025)

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Invasive candidiasis, a serious fungal blood infection caused by Candida species, is a major health crisis in Latin America and the Caribbean with death rates reaching 60% in vulnerable populations. The disease is worsening in areas affected by armed conflict, violence, and displacement where poor living conditions, overcrowding, malnutrition, and lack of healthcare create ideal conditions for the infection to develop and spread. Antifungal drugs are often unavailable or too expensive, and drug-resistant strains of Candida are becoming increasingly common, making treatment extremely challenging in these regions.

Candida vulturna, the Next Fungal Menace? A Narrative Review

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Candida vulturna is a newly identified fungus that causes serious bloodstream infections, particularly in newborns and hospitalized patients in tropical regions. Unlike many common fungal infections, it resists several antifungal medications, though it remains susceptible to certain antibiotics called echinocandins. Scientists have documented 94 cases worldwide, including three hospital outbreaks, and the infection has a relatively low death rate of 18%. Accurate identification requires genetic testing since standard hospital laboratory tests often misidentify this pathogen.

Antifungal susceptibility testing of Microsporum canis isolated from the skin of dermatologically healthy cats

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Researchers tested healthy cats in Chile and found that about 5% carried a fungus called Microsporum canis that can cause ringworm. This fungus was resistant to a common antifungal drug called fluconazole. Indoor cats were more likely to carry the fungus than outdoor cats. Because cats can spread this fungus to people, identifying carrier cats is important for preventing human infections.

Research Keyword: antifungal resistance