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Petrikkos G, Tsioutis C, et al.
Clinical therapeutics. Date of publication 2018 Jun 1;volume 40(6):894-902.
1. Clin Ther. 2018 Jun;40(6):894-902. doi: 10.1016/j.clinthera.2018.03.009. Epub 2018 Apr 6. Recent Advances in the Pathogenesis of Mucormycoses. Petrikkos G(1), Tsioutis C(2). Author information: (1)School of Medicine, European University Cyprus, Nicosia, Cyprus; Infectious Diseases Research Laboratory, Fourth Dept of Internal Medicine, University General Hospital Attikon, Medical School, National and Kapodistrian University of Athens, Athens, Greece. Electronic address: g.petrikkos@euc.ac.cy. (2)School of Medicine, European University Cyprus, Nicosia, Cyprus. PURPOSE: The purposes of this review are to describe the pathogenesis of mucormycosis and to address recent research advances in understanding the mechanisms of fungal invasion and dissemination. METHODS: Studies and reviews published in the PubMed and ClinicalTrials.gov databases until December 2017 that explored or reported recent advances in the understanding of the pathogenesis of mucormycosis were reviewed. FINDINGS: To cause disease, fungal spores need to evade the innate immune system and germinate, leading to angioinvasion and tissue destruction. Recent studies have found that Mucorales are able to downregulate several host defense mechanisms and have identified the specific receptors through which Mucorales attach to the endothelium, facilitating their endocytosis and subsequent angioinvasion. In addition, certain conditions found to act through various mechanisms and pathways in experimental and animal studies, such as hyperglycemia, elevated iron concentrations, and acidosis (particularly diabetic ketoacidosis), increase the virulence of the fungi and enhance their attachment to the endothelium, rendering patients with uncontrolled diabetes and patients with iron overload susceptible to mucormycosis. The role and various antifungal functions of platelets and natural killer cells are highlighted, and the potential contribution of alternative therapies, such as manipulating the innate immune host defenses with granulocyte transfusions or administration of growth factors and using the antifungal effects of calcineurin inhibitors, are presented. Finally, directions and possible implications for future research are provided. IMPLICATIONS: This article provides a comprehensive overview of research advances in the pathogenesis of infections caused by Mucorales and helps future studies develop effective treatment strategies and improve patient outcomes. Copyright © 2018 Elsevier HS Journals, Inc. All rights reserved. DOI: 10.1016/j.clinthera.2018.03.009 PMID: 29631910
Appears in following Topics:
Pyogenic and Invasive Fungal Intracranial Abscesses