New method of diagnosing deadly fungal lung infection in leukemia patients discovered

A new way detect early a potentially deadly fungal infection in patients with suppressed immune systems, such as those being treated for leukemia or have had an organ transplant, has been revealed by a team of scientists.
Source: ScienceDaily Headlines - Category: Science Source Type: news

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Conclusion: This prospective multicenter study provides information on the current incidence and outcome of IFD in the real life setting. Practice variation between the centers may help to ultimately improve antifungal management in children at highest risk for IFDs. Introduction Available data on the incidence and outcome of invasive fungal diseases (IFD) in children treated for a hematological malignancy or undergoing allogeneic hematopoietic stem cell transplantation (HSCT) are mostly based on single site, retrospective studies or on studies performed prior to the availability of newer compounds such as broad-sp...
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
In this study they also showed PTX3 localized in NETs formed after neutrophil activation (5). Proteomics analysis revealed that PTX3 forms complexes with two anti-microbial proteins [azurocidin (AZU1) and myeloperoxidase (MPO)] associated to NETs (30). More recently, PTX3 localization in NETs has been confirmed, and the colocalization with AZU1 and MPO has been defined more accurately (31). Further investigation will be needed to understand the involvement of PTX3 interaction with AZU1 and MPO in their antibacterial role during NET formation. Regulation of Complement Activation PTX3 interaction with microorganisms is not...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusion In conclusion, F. keratoplasticum and F. petroliphilum were the most frequent species in this study. Amphotericin B showed lower MICs against Fusarium species whereas the antifungal azoles and the fungicide difenoconazole exhibited higher MICs against FSSC. Ethics Statement Samples were collected during routine patient care and the study was retrospective, therefore it was determined by the local Institutional Review Board of the Hospital de Clínicas, Federal University of Paraná and CAPES that ethical clearance was not indicated. Author Contributions PH, AA-H, FQ-T, and JM designed the study....
Source: Frontiers in Microbiology - Category: Microbiology Source Type: research
This study also revealed adenosine as a novel danger-associated molecular pattern (DAMP), responsible for initiating helminth-induced type-2 responses, through activation of ILC2s. Additional receptors reported to be highly expressed by ILC2s and required for their expansion and function include the tumor necrosis factor (TNF)-receptor superfamily member DR3 (TNFRSF25) and the IL-9R. In the absence of TL1A ligation to DR3, there is significantly reduced ILC2 expansion, type-2 cytokine production and N. brasiliensis expulsion (74), whereas IL-9R signaling was required for ILC2 accumulation, expulsion of N. brasiliensis and...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
We report that the bifunctional compounds enhance the interactions between primary human neutrophils and A. fumigatus in vitro, using three microfluidic assay platforms. The bifunctional compounds significantly enhance the recruitment of neutrophils, increase hyphae killing by neutrophils in a uniform concentration of drug, and decrease hyphal tip growth velocity in the presence of neutrophils compared to the antifungal targeting moiety alone. We validated that the bifunctional compounds are also effective in vivo, using a zebrafish infection model with neutrophils expressing the appropriate EM receptor. We measured signif...
Source: Frontiers in Immunology - Category: Allergy & Immunology Source Type: research
Conclusions. ISV is widely used in hematological pts with IFI also in diseases other than acute myeloid leukemia and it is overall well tolerated. ORR to ISV is at least comparable with other antifungal agents. A rec/ref underlying hematological disease impacts both on OS and response to ISV, while having an IFI refractory to other antifungal agents including azoles does not seem to compromise the response to ISV, although this promising result should be confirmed in prospective studies and larger groups of patients.DisclosuresBusca: Gilead: Honoraria, Membership on an entity's Board of Directors or advisory committees, Sp...
Source: Blood - Category: Hematology Authors: Tags: 203. Lymphocytes, Lymphocyte Activation, and Immunodeficiency, including HIV and Other Infections: Poster III Source Type: research
Conclusion】Our study is a long-term nationwide study of endemics of visceral mycoses among significant immunosuppressive patients. More recently frequent agents were Mucor spp. in leukemia and MDS, and especially Candida spp. with GVHD. Our data provide valuable evidence that antifungal treatment is one of the most important treatments for leukemia and MDS, and SCT.Figure.DisclosuresNo relevant conflicts of interest to declare.
Source: Blood - Category: Hematology Authors: Tags: 904. Outcomes Research-Malignant Conditions: Poster II Source Type: research
CONCLUSIONHaploSCT with unmanipulated PBSCs provides a route to potentially curative therapy for patients without access to conventional donor sources. In vivo T-cell depletion leads to low incidence of acute and chronic GvHD but high rates of infectious complications, particularly viral infections.DisclosuresLipton: Takeda: Consultancy, Honoraria, Research Funding; BMS: Consultancy, Honoraria, Research Funding; Pfizer: Consultancy, Honoraria, Research Funding; Novartis: Consultancy, Honoraria, Research Funding.
Source: Blood - Category: Hematology Authors: Tags: 721. Clinical Allogeneic Transplantation: Conditioning Regimens, Engraftment, and Acute Transplant Toxicities: Poster I Source Type: research
Publication date: April 2018Source: Journal of Microbiology, Immunology and Infection, Volume 51, Issue 2Author(s): Gu-Lung Lin, Hsiu-Hao Chang, Chun-Yi Lu, Chung-Ming Chen, Meng-Yao Lu, Ping-Ing Lee, Shiann-Tarng Jou, Yung-Li Yang, Li-Min Huang, Luan-Yin ChangAbstractBackgroundInvasive fungal infection (IFI) causes significant morbidity and mortality in patients with hematological malignancies, especially those with acute myeloid leukemia (AML), recurrent acute leukemia, high-risk acute lymphoblastic leukemia, and after allogeneic hematopoietic stem cell transplantation. The study aimed to investigate the clinical charact...
Source: Journal of Microbiology, Immunology and Infection - Category: Microbiology Source Type: research
AbstractWe aimed to estimate the burden of serious fungal infections in Egypt, currently unknown, based on the size of the populations at risk and available epidemiological data. Data were obtained from the World Health Organization (WHO), the Joint United Nations Programme on HIV/AIDS (UNAIDS), and published reports with clearcut denominators. When no data existed, risk populations were used to estimate frequencies of fungal infections, using previously described methodology. The population of Egypt in 2011 was ∼82,500,000; 31% children, and 8% women>60  years of age. Amongst about 21.8 million women aged 15&n...
Source: European Journal of Clinical Microbiology and Infectious Diseases - Category: Microbiology Source Type: research
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