Stories about: fungal infections

A new, much needed target for treating Candida albicans

Candida albicans

Fungal diseases commonly bring to mind the words “dangerous” or “difficult to cure.” Now, scientists might just be a step closer to treating diseases caused by one common, problematic fungus, Candida albicans, by targeting a key player unique to fungi in an important growth pathway.

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From flu to fungi: Different asthmas, different pathways

Understanding asthma's different pathways may allow individualized treatments.
Understanding asthma’s different pathways may allow individualized treatments.

Existing asthma drugs don’t work well in many people, and a major reason is becoming clear: Asthma isn’t just one disease, but a collection of diseases that cause airways to constrict and become twitchy. Different types of asthma have different triggers that exacerbate the disease, each setting off a different part of the immune system, and each needing a different pharmacologic approach.

In this week’s Nature Medicine, a team led by Dale Umetsu, MD, PhD, and Lee Albacker, PhD, of Boston Children’s Hospital’s Division of Immunology and Harvard Medical School, describe a type of asthma triggered by the fungus Aspergillus fumigatus, a common mold.

Existing asthma control drugs, like inhaled corticosteroids, target allergic asthma, via pathways involving adaptive immunity and a group of T cells, known as Th2 cells. However, the new work, in live mice and in human cell cultures, suggests that Aspergillus triggers asthma through a faster process involving the innate immune system. In both mice and humans, Aspergillus activates a different set of T cells, known as natural killer T cells (NKT cells).

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