PMID- 32743127 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20210923 IS - 2468-2330 (Electronic) IS - 2468-2330 (Linking) VI - 1 DP - 2018 Mar TI - Mitogen activated protein kinases (MAPK) and protein phosphatases are involved in Aspergillus fumigatus adhesion and biofilm formation. PG - 43-56 LID - 10.1016/j.tcsw.2018.03.002 [doi] AB - The main characteristic of biofilm formation is extracellular matrix (ECM) production. The cells within the biofilm are surrounded by ECM which provides structural integrity and protection. During an infection, this protection is mainly against cells of the immune system and antifungal drugs. A. fumigatus forms biofilms during static growth on a solid substratum and in chronic aspergillosis infections. It is important to understand how, and which, A. fumigatus signal transduction pathways are important for the adhesion and biofilm formation in a host during infection. Here we investigated the role of MAP kinases and protein phosphatases in biofilm formation. The loss of the MAP kinases MpkA, MpkC and SakA had an impact on the cell surface and the ECM during biofilm formation and reduced the adherence of A. fumigatus to polystyrene and fibronectin-coated plates. The phosphatase null mutants DeltasitA and DeltaptcB, involved in regulation of MpkA and SakA phosphorylation, influenced cell wall carbohydrate exposure. Moreover, we characterized the A. fumigatus protein phosphatase PphA. The DeltapphA strain was more sensitive to cell wall-damaging agents, had increased beta-(1,3)-glucan and reduced chitin, decreased conidia phagocytosis by Dictyostelium discoideum and reduced adhesion and biofilm formation. Finally, DeltapphA strain was avirulent in a murine model of invasive pulmonary aspergillosis and increased the released of tumor necrosis factor alpha (TNF-alpha) from bone marrow derived macrophages (BMDMs). These results show that MAP kinases and phosphatases play an important role in signaling pathways that regulate the composition of the cell wall, extracellular matrix production as well as adhesion and biofilm formation in A. fumigatus. CI - (c) 2018 Elsevier B.V. FAU - Manfiolli, Adriana Oliveira AU - Manfiolli AO AD - Faculdade de Ciencias Farmaceuticas de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Brazil. FAU - Dos Reis, Thaila Fernanda AU - Dos Reis TF AD - Faculdade de Ciencias Farmaceuticas de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Brazil. FAU - de Assis, Leandro Jose AU - de Assis LJ AD - Faculdade de Ciencias Farmaceuticas de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Brazil. FAU - de Castro, Patricia Alves AU - de Castro PA AD - Faculdade de Ciencias Farmaceuticas de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Brazil. FAU - Silva, Lilian Pereira AU - Silva LP AD - Faculdade de Ciencias Farmaceuticas de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Brazil. FAU - Hori, Juliana I AU - Hori JI AD - Faculdade de Ciencias Farmaceuticas de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Brazil. FAU - Walker, Louise A AU - Walker LA AD - School of Medical Sciences, University of Aberdeen, Aberdeen, UK. FAU - Munro, Carol A AU - Munro CA AD - School of Medical Sciences, University of Aberdeen, Aberdeen, UK. FAU - Rajendran, Ranjith AU - Rajendran R AD - Infection and Immunity Research Group, Glasgow Dental School, School of Medicine, College of Medical, Veterinary and Life Sciences, The University of Glasgow, 378 Sauchiehall Street, Glasgow G2 3JZ, UK. FAU - Ramage, Gordon AU - Ramage G AD - Infection and Immunity Research Group, Glasgow Dental School, School of Medicine, College of Medical, Veterinary and Life Sciences, The University of Glasgow, 378 Sauchiehall Street, Glasgow G2 3JZ, UK. FAU - Goldman, Gustavo H AU - Goldman GH AD - Faculdade de Ciencias Farmaceuticas de Ribeirao Preto, Universidade de Sao Paulo, Ribeirao Preto, Brazil. LA - eng GR - MR/N006364/1/MRC_/Medical Research Council/United Kingdom PT - Journal Article DEP - 20180326 PL - Netherlands TA - Cell Surf JT - Cell surface (Amsterdam, Netherlands) JID - 101728565 EIN - Cell Surf. 2020 Jan 23;6:100035. PMID: 32744537 PMC - PMC7389341 OTO - NOTNLM OT - Aspergillus fumigatus OT - Biofilm OT - Extracellular matrix OT - Mitogen activated protein kinases OT - Phosphatases OT - Polysaccharide EDAT- 2018/03/26 00:00 MHDA- 2018/03/26 00:01 PMCR- 2018/03/26 CRDT- 2020/08/04 06:00 PHST- 2018/02/09 00:00 [received] PHST- 2018/03/08 00:00 [revised] PHST- 2018/03/14 00:00 [accepted] PHST- 2020/08/04 06:00 [entrez] PHST- 2018/03/26 00:00 [pubmed] PHST- 2018/03/26 00:01 [medline] PHST- 2018/03/26 00:00 [pmc-release] AID - S2468-2330(18)30004-5 [pii] AID - 10.1016/j.tcsw.2018.03.002 [doi] PST - epublish SO - Cell Surf. 2018 Mar 26;1:43-56. doi: 10.1016/j.tcsw.2018.03.002. eCollection 2018 Mar.