Are Macrophages the Heroes or Villains During Cryptococcosis?
2019
Rudman, Jacob | Evans, Robert J. | Andrew Johnston, Simon
Cryptococcus infections represents a major healthcare burden, with over 200,000 cases globally a year and even with treatment, mortality remains as high as 80%. There is a clear need for new classes of treatment, especially with the global threat of antifungal resistance. Several groups are investigating the potential of immunotherapy - circumventing many of the issues with current treatments. Macrophages are a cell type known to be heavily associated with cryptococcal infection, from the innate immune response through to the later stage chronic adaptive response – making these an ideal target for manipulation. However, it is currently debated whether macrophage activity is positive or negative for host outcomes. Here, we discuss the current literature surrounding the role of macrophages during Cryptococcus infection, and makes cases for and against macrophage enhancement. Finally, we discuss which pressing questions in the field still remain that require answers in order to safely design an immunotherapeutic with high efficacy.
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