期刊
FUTURE MICROBIOLOGY
卷 11, 期 11, 页码 1404-1419出版社
FUTURE MEDICINE LTD
DOI: 10.2217/fmb-2016-0090
关键词
ATG7; autophagy; Cryptococcus neoformans; macrophages; virulence
类别
资金
- Wellcome Trust [WT104741]
- Instituto Nacional de Ciencia e Tecnologia de Inovacao em Doencas Negligenciadas (INCT-IDN) [573642/2008-7]
- CNPq [443586/2014-4, 300699/2013-1]
- FAPERJ [E-26/102.835/2012, 210.918/2015]
Aim: We investigated the involvement of the autophagy protein 7 (Atg7) in physiology and pathogenic potential of Cryptococcus neoformans. Materials & methods: The C. neoformans gene encoding Atg7 was deleted by biolistic transformation for characterization of autophagy mechanisms, pigment formation, cell dimensions, interaction with phagocytes and pathogenic potential in vivo. Results & conclusion: ATG7 deletion resulted in defective autophagy mechanisms, enhanced pigmentation and increased cellular size both in vitro and in vivo. The atg7. mutant had decreased survival in the lung of infected mice, higher susceptibility to the killing machinery of different host phagocytes and reduced ability to kill an invertebrate host. These results connect Atg7 with mechanisms of pathogenicity in the C. neoformans model.
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