A Human Dectin-2 Deficiency Associated With Invasive Aspergillosis.

A Human Dectin-2 Deficiency Associated With Invasive Aspergillosis.
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DOI:
10.1093/infdis/jiab145
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发表时间:
2021-10-13
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Orr SJ
Orr SJ
中科院分区:
其他
文献类型:
--
作者:
Griffiths JS;White PL;Czubala MA;Simonazzi E;Bruno M;Thompson A;Rizkallah PJ;Gurney M;da Fonseca DM;Naglik JR;Ingram W;Wilson K;van de Veerdonk FL;Barnes R;Taylor PR;Orr SJ

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Immunocompromised patients are highly susceptible to invasive aspergillosis. Herein, we identified a homozygous deletion mutation (507 del C) resulting in a frameshift (N170I) and early stop codon in the fungal binding Dectin-2 receptor, in an immunocompromised patient. The mutated form of Dectin-2 was weakly expressed, did not form clusters at/near the cell surface and was functionally defective. Peripheral blood mononuclear cells from this patient were unable to mount a cytokine (tumor necrosis factor, interleukin 6) response to Aspergillus fumigatus, and this first identified Dectin-2–deficient patient died of complications of invasive aspergillosis. We identified a Dectin-2 N170I mutation in an immunocompromised patient who died of complications of invasive aspergillosis. This mutation results in an early stop codon and poor receptor expression and renders Dectin-2 functionally defective.
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