Journal
VIRULENCE
Volume 2, Issue 4, Pages 280-295Publisher
TAYLOR & FRANCIS INC
DOI: 10.4161/viru.2.4.16764
Keywords
Candida; Aspergillus; chemotherapy; calcineurin inhibitors; TOR; HSP90; tyrosine kinase; autophagy; DNA topoisomerase; corticosteroids
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Funding
- National Institutes of Health through MD Anderson's Cancer Center [CA016672]
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Conventional antineoplastic, novel immunosuppressive agents and antibiotics used in cancer treatment can directly affect the growth, development and virulence of Candida and Aspergillus species. Cytotoxic and cisplatin compounds have anti-Candida activity and may be synergistic with antifungal drugs; they also inhibit Candida and Aspergillus filamentation/conidation and effect increased virulence in vitro. Glucocorticoids enhance Candida adherence to epithelial cells, germination in serum and in vitro secretion of phospholipases and proteases, as well as growth of A. fumigatus. Calcineurin and target of rapamycin inhibitors perturb Candida and Aspergillus morphogenesis, stress responses and survival in serum, reduce azole tolerance in Candida, but yield conflicting in vivo data. Inhibition of candidal heat shock protein 90 and candidal-specific histone deacetylase represent feasible therapeutic approaches for candidiasis. Tyrosine kinase inhibitors inhibit fungal cell entry into epithelial cells and phagocytosis. Quinolone and other antibiotics may augment activity of azole and polyene agents. The correlation of in vitro effects with clinically meaningful in vivo systems is warranted.
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