Human platelets attenuate Aspergillus species via granule-dependent mechanisms.

Human platelets attenuate Aspergillus species via granule-dependent mechanisms.
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DOI:
10.1086/591458
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发表时间:
2008-10-15
期刊:
The Journal of infectious diseases
影响因子:
--
通讯作者:
Lass-Flörl C
Lass-Flörl C
中科院分区:
其他
文献类型:
--
作者:
Perkhofer S;Kehrel BE;Dierich MP;Donnelly JP;Nussbaumer W;Hofmann J;von Eiff C;Lass-Flörl C

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Using laser scanning microscopy, we investigated whether platelets are capable of internalizing Aspergillus conidia and examined Aspergillus-platelet adherence. The influence of platelets on fungal growth was evaluated by assessing galactomannan (GM) release, hyphal elongation, and colony size. A secretion assay with [3H]-serotonin (5-hydroxytryptamine [5-HT]) was performed. Exposure to platelets resulted in significantly decreased GM release (P<.05), hyphal elongation (P<.001), colony size, pig-mentation, and 5-HT release (P<.05). A lack of antifungal effects was observed with the microfilament inhibitor cytochalasin D. Platelets attenuate the virulence of Aspergillus species in vitro on the basis of granule-dependent effects.
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