PMID- 26026172 OWN - NLM STAT- MEDLINE DCOM- 20160505 LR - 20150707 IS - 1460-2709 (Electronic) IS - 1369-3786 (Linking) VI - 53 IP - 6 DP - 2015 Aug TI - Analysis of asthma patients for cryptococcal seroreactivity in an urban German area. PG - 576-86 LID - 10.1093/mmy/myv024 [doi] AB - Cryptococcus neoformans is an opportunistic fungal pathogen that causes lung inflammation and meningoencephalitis in immunocompromised patients but is also able to asymptomatically infect immunocompetent individuals. C. neoformans is found ubiquitously especially in urban areas where it is spread by pigeons, and fungal exposure may predispose for asthma development already at an early age, as soon as confronted with pigeon droppings. In the study presented here, we investigated the presence of specific immunoglobulin G (IgG) against C. neoformans in sera from patients suffering from asthma in comparison to a healthy control cohort, accrued from the Leipzig Research Centre for Civilization Diseases (LIFE). For serological analysis we developed a flow cytometry (FACS) based assay specific for an acapsular strain of C. neoformans to comprehensively analyze different cryptococcal serotypes. Compared with the non-asthmatic cohort, asthmatics exhibited, as expected, an elevated level of total serum immunoglobulin E (IgE), whereas the IgG seroreactivity against C. neoformans was not significantly different among the two groups (P = .118). Nevertheless, there was a trend toward increased Cryptococcus-specific IgG antibodies in the serum of asthmatics. Additionally, in male asthmatics an increased IgG-mediated seroreactivity compared to female asthmatics was found. This points to a higher prevalence of subclinical C. neoformans infection in male asthmatics and may support the hypothesis of C. neoformans as a risk factor for the development of asthma in urban areas. CI - (c) The Author 2015. Published by Oxford University Press on behalf of The International Society for Human and Animal Mycology. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com. FAU - Grahnert, Andreas AU - Grahnert A AD - Institute of Immunology/Molecular Pathogenesis, Center for Biotechnology and Biomedicine, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany. FAU - Muller, Uwe AU - Muller U AD - Institute of Immunology/Molecular Pathogenesis, Center for Biotechnology and Biomedicine, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany. FAU - von Buttlar, Heiner AU - von Buttlar H AD - Institute of Immunology/Molecular Pathogenesis, Center for Biotechnology and Biomedicine, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany. FAU - Treudler, Regina AU - Treudler R AD - Department of Dermatology, Venerology & Allergology, University of Leipzig, Leipzig, Germany LIFE-Leipzig Research Center for Civilization Diseases, Universitat Leipzig, Germany. FAU - Alber, Gottfried AU - Alber G AD - Institute of Immunology/Molecular Pathogenesis, Center for Biotechnology and Biomedicine, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany LIFE-Leipzig Research Center for Civilization Diseases, Universitat Leipzig, Germany alber@rz.uni-leipzig.de. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150530 PL - England TA - Med Mycol JT - Medical mycology JID - 9815835 RN - 0 (Antibodies, Fungal) SB - IM MH - Adult MH - Antibodies, Fungal/*blood MH - Asthma/complications/*epidemiology MH - Case-Control Studies MH - Cryptococcosis/complications/epidemiology/*immunology MH - Cryptococcus neoformans/*immunology MH - Female MH - Humans MH - Male MH - Middle Aged OTO - NOTNLM OT - Cryptococcus neoformans OT - asthma OT - fungal allergy OT - seroreactivity EDAT- 2015/05/31 06:00 MHDA- 2016/05/06 06:00 CRDT- 2015/05/31 06:00 PHST- 2015/03/17 00:00 [accepted] PHST- 2015/03/16 00:00 [received] PHST- 2015/05/31 06:00 [entrez] PHST- 2015/05/31 06:00 [pubmed] PHST- 2016/05/06 06:00 [medline] AID - myv024 [pii] AID - 10.1093/mmy/myv024 [doi] PST - ppublish SO - Med Mycol. 2015 Aug;53(6):576-86. doi: 10.1093/mmy/myv024. Epub 2015 May 30.