Abstract
Candida species, in particular C. albicans, represent a major threat to immunocompromised patients. Able to exist as a commensal on mucosal surfaces of healthy individuals, these opportunistic fungi frequently cause superficial infections of mucosae and skin. Furthermore, in hospital settings, Candida species may cause life-threatening invasive infections in a growing population of vulnerable patients. In fact, candidaemia is associated with the highest crude mortality of all bloodstream infections. Candida cells may enter the bloodstream by direct penetration from epithelial tissues, due to damage of barriers in the body caused by surgery, polytrauma or drug treatment, or may spread from biofilms produced on medical devices. From the bloodstream, cells may infect almost all organs but appear to prefer certain organs depending upon the route of infection. The exact mechanisms by which Candida cells survive the challenge of the blood environment and escape from the bloodstream to cause deep-seated infections have not yet been elucidated, but various investigations are reviewed. It is clear, however, that Candida must have particular attributes which enable the organism to survive and grow within the environment of healthy individuals and to invade tissues in the immunocompromised host. Most studies have focussed on C. albicans and this review will therefore summarise work on the various known virulence factors and methods used to identify further virulence attributes of this fungus.
Keywords: Candida, invasive infections, systemic infections, bloodstream infections, dissemination, virulence factors, hostfungus interaction
Current Drug Targets
Title: Systemic Fungal Infections Caused by Candida Species: Epidemiology, Infection Process and Virulence Attributes
Volume: 6 Issue: 8
Author(s): A. L. Mavor, S. Thewes and B. Hube
Affiliation:
Keywords: Candida, invasive infections, systemic infections, bloodstream infections, dissemination, virulence factors, hostfungus interaction
Abstract: Candida species, in particular C. albicans, represent a major threat to immunocompromised patients. Able to exist as a commensal on mucosal surfaces of healthy individuals, these opportunistic fungi frequently cause superficial infections of mucosae and skin. Furthermore, in hospital settings, Candida species may cause life-threatening invasive infections in a growing population of vulnerable patients. In fact, candidaemia is associated with the highest crude mortality of all bloodstream infections. Candida cells may enter the bloodstream by direct penetration from epithelial tissues, due to damage of barriers in the body caused by surgery, polytrauma or drug treatment, or may spread from biofilms produced on medical devices. From the bloodstream, cells may infect almost all organs but appear to prefer certain organs depending upon the route of infection. The exact mechanisms by which Candida cells survive the challenge of the blood environment and escape from the bloodstream to cause deep-seated infections have not yet been elucidated, but various investigations are reviewed. It is clear, however, that Candida must have particular attributes which enable the organism to survive and grow within the environment of healthy individuals and to invade tissues in the immunocompromised host. Most studies have focussed on C. albicans and this review will therefore summarise work on the various known virulence factors and methods used to identify further virulence attributes of this fungus.
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Cite this article as:
Mavor L. A., Thewes S. and Hube B., Systemic Fungal Infections Caused by Candida Species: Epidemiology, Infection Process and Virulence Attributes, Current Drug Targets 2005; 6(8) . https://dx.doi.org/10.2174/138945005774912735
DOI https://dx.doi.org/10.2174/138945005774912735 |
Print ISSN 1389-4501 |
Publisher Name Bentham Science Publisher |
Online ISSN 1873-5592 |

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