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10.1371/journal.ppat.1006978 http://scihub22266oqcxt.onion/10.1371/journal.ppat.1006978 C5959070!5959070 !29775474     free     free     free Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Deprecated: Implicit conversion from float 231.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\29775474 .jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117       PLoS+Pathog 2018 ; 14 (5 ): e1006978 Nephropedia Template TP {{tp|p=29775474 |t=2018. The Cryptococcus neoformans Titan cell is an inducible and regulated morphotype underlying pathogenesis |pdf=|usr=}}{{29775474 }} gab.com Text The Cryptococcus neoformans Titan cell is an inducible and regulated morphotype underlying pathogenesis JO: PLoS Pathog http://www.kidney.de/pget.php?&tw=1&pmid=29775474 #FOAvip Fungal cells change shape in response to environmental stimuli, and these morphogenic transitions drive pathogenesis and niche adaptation. For example, dimorphic fungi switch between yeast and hyphae in response to changing temperature. The basidiomycete Cryptococcus neoformans undergoes an unusual morphogenetic transition in the host lung from haploid yeast to large, highly polyploid cells termed Titan cells. Titan cells influence fungal interaction with host cells, including through increased drug resistance, altered cell size, and altered Pathogen Associated Molecular Pattern exposure. Despite the important role these cells play in pathogenesis, understanding the environmental stimuli that drive the morphological transition, and the molecular mechanisms underlying their unique biology, has been hampered by the lack of a reproducible in vitro induction system. Here we demonstrate reproducible in vitro Titan cell induction in response to environmental stimuli consistent with the host lung. In vitro Titan cells exhibit all the properties of in vivo generated Titan cells, the current gold standard, including altered capsule, cell wall, size, high mother cell ploidy, and aneuploid progeny. We identify the bacterial peptidoglycan subunit Muramyl Dipeptide as a serum compound associated with shift in cell size and ploidy, and demonstrate the capacity of bronchial lavage fluid and bacterial co-culture to induce Titanisation. Additionally, we demonstrate the capacity of our assay to identify established (cAMP/PKA) and previously undescribed (USV101) regulators of Titanisation in vitro. Finally, we investigate the Titanisation capacity of clinical isolates and their impact on disease outcome. Together, these findings provide new insight into the environmental stimuli and molecular mechanisms underlying the yeast-to-Titan transition and establish an essential in vitro model for the future characterization of this important morphotype. Twit Text FOAVip The Cryptococcus neoformans Titan cell is an inducible and regulated morphotype underlying pathogenesis ????PLoS Pathog http://www.kidney.de/pget.php?&tw=1&pmid=29775474 #FOAvip Twit Text # Free Paper on # # # # # LINK http://www.kidney.de/pget.php?&tw=1&pmid=29775474 #FOAvip English Wikipedia <ref>{{Cite pmid|29775474 }}</ref> The Cryptococcus neoformans Titan cell is an inducible and regulated morphotype underlying pathogenesis #MMPMID29775474 Dambuza IM ; Drake T ; Chapuis A ; Zhou X ; Correia J ; Taylor-Smith L ; LeGrave N ; Rasmussen T ; Fisher MC ; Bicanic T ; Harrison TS ; Jaspars M ; May RC ; Brown GD ; Yuecel R ; MacCallum DM ; Ballou ER PLoS Pathog 2018[May]; 14 (5 ): e1006978 PMID29775474 show ga Fungal cells change shape in response to environmental stimuli, and these morphogenic transitions drive pathogenesis and niche adaptation. For example, dimorphic fungi switch between yeast and hyphae in response to changing temperature. The basidiomycete Cryptococcus neoformans undergoes an unusual morphogenetic transition in the host lung from haploid yeast to large, highly polyploid cells termed Titan cells. Titan cells influence fungal interaction with host cells, including through increased drug resistance, altered cell size, and altered Pathogen Associated Molecular Pattern exposure. Despite the important role these cells play in pathogenesis, understanding the environmental stimuli that drive the morphological transition, and the molecular mechanisms underlying their unique biology, has been hampered by the lack of a reproducible in vitro induction system. Here we demonstrate reproducible in vitro Titan cell induction in response to environmental stimuli consistent with the host lung. In vitro Titan cells exhibit all the properties of in vivo generated Titan cells, the current gold standard, including altered capsule, cell wall, size, high mother cell ploidy, and aneuploid progeny. We identify the bacterial peptidoglycan subunit Muramyl Dipeptide as a serum compound associated with shift in cell size and ploidy, and demonstrate the capacity of bronchial lavage fluid and bacterial co-culture to induce Titanisation. Additionally, we demonstrate the capacity of our assay to identify established (cAMP/PKA) and previously undescribed (USV101) regulators of Titanisation in vitro. Finally, we investigate the Titanisation capacity of clinical isolates and their impact on disease outcome. Together, these findings provide new insight into the environmental stimuli and molecular mechanisms underlying the yeast-to-Titan transition and establish an essential in vitro model for the future characterization of this important morphotype. |Animals [MESH] |Cryptococcosis/microbiology [MESH] |Cryptococcus neoformans/*cytology/genetics/*pathogenicity [MESH] |Cyclic AMP/metabolism [MESH] |Disease Models, Animal [MESH] |Female [MESH] |Fungal Proteins/metabolism [MESH] |Host-Pathogen Interactions [MESH] |Humans [MESH] |Hyphae/cytology/growth & development/pathogenicity [MESH] |Lung Diseases, Fungal/microbiology [MESH] |Lung/microbiology [MESH] |Male [MESH] |Mice [MESH] |Mice, Inbred BALB C [MESH] |Mice, Inbred C57BL [MESH] |Microscopy, Electron, Transmission [MESH] |Models, Biological [MESH] |Morphogenesis [MESH] |Polyploidy [MESH] |Transcription Factors/metabolism [MESH]The Cryptococcus neoformans Titan cell is an inducible and regulated m(epmc).pdf DeepDyve Pubget Overpricing