A dissemination-prone morphotype enhances extrapulmonary organ entry by Cryptococcus neoformans.
A dissemination-prone morphotype enhances extrapulmonary organ entry by Cryptococcus neoformans.
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DOI:
10.1016/j.chom.2022.08.017
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发表时间:
2022-10-12
影响因子:
30.3
通讯作者:
Brown, Jessica C. S.
中科院分区:
文献类型:
--
作者:
Denham, Steven T.;Brammer, Brianna;Chung, Krystal Y.;Wambaugh, Morgan A.;Bednarek, Joseph M.;Guo, Li;Moreau, Christian T.;Brown, Jessica C. S.
Environmental pathogens move from ecological niches to mammalian hosts, requiring adaptation to dramatically different environments. Microbes that disseminate farther, including the fungal meningitis pathogen Cryptococcus neoformans, require additional adaptation to diverse tissues. We demonstrate that formation of a small C. neoformans morphotype – called “seed” cells due to their colonizing ability – is critical for extrapulmonary organ entry. Seed cells exhibit changes in fungal cell size and surface expression that result in enhanced macrophage update. Seed cell formation is triggered by environmental factors, including C. neoformans’ environmental niche, pigeon guano with phosphate playing central roles. Seed cells show enhanced expression of phosphate acquisition genes and mutants unable to acquire phosphate fail to adopt the seed cell morphotype. Additionally, phosphate can be released by tissue damage, potentially establishing a feed-forward loop of seed cell formation and dissemination. Thus, C. neoformans’ size variation represent inducible morphotypes that change host interactions to facilitate microbe spread. Environmental microbes that disseminate during infection must adjust to disparate environments. Denham et al. identifies an inducible morphotype that facilitates organ entry by the pathogenic fungus Cryptococcus neoformans. Alterations in phosphate concentration induce this small morphotype, facilitating fungal exit from the lung and dissemination to other organs.
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DOI:
10.3390/jof4010039
发表时间:
2018-03-20
期刊:
Journal of fungi (Basel, Switzerland)
影响因子:
--
作者:
Basenko EY;Pulman JA;Shanmugasundram A;Harb OS;Crouch K;Starns D;Warrenfeltz S;Aurrecoechea C;Stoeckert CJ Jr;Kissinger JC;Roos DS;Hertz-Fowler C
通讯作者:
Hertz-Fowler C
影响因子:
28.3
作者:
Ballou ER;Avelar GM;Childers DS;Mackie J;Bain JM;Wagener J;Kastora SL;Panea MD;Hardison SE;Walker LA;Erwig LP;Munro CA;Gow NA;Brown GD;MacCallum DM;Brown AJ
通讯作者:
Brown AJ
影响因子:
6.4
作者:
Alanio, Alexandre;Vernel-Pauillac, Frederique;Dromer, Francoise
通讯作者:
Dromer, Francoise
影响因子:
30.3
作者:
Chun CD;Brown JCS;Madhani HD
通讯作者:
Madhani HD
DOI:
10.3390/jof4010025
发表时间:
2018-02-17
期刊:
Journal of fungi (Basel, Switzerland)
影响因子:
--
作者:
Denham ST;Brown JCS
通讯作者:
Brown JCS