کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10747981 | 1050254 | 2016 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Neutrophil swarming toward Cryptococcus neoformans is mediated by complement and leukotriene B4
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کلمات کلیدی
CXCL2complement component 5aC5aRC5aLTB4chemokine (C-X-C motif) ligand 2CD11BCXCL1TRITCtetramethylrhodamineSwarming - بستنی ندهیدcomplement component 3 - جزء مکمل 3complement component 5 - جزء مکمل 5Leukotriene B4 - لوکوترین B4Complement - متممNeutrophils - نوتروفیل هاCryptococcus neoformans - کریپتوکوکوس نئوفورمانسchemokine (C-X-C motif) ligand 1 - کیموکین (C-X-C motif) لیگاند 1
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Neutrophil swarming toward Cryptococcus neoformans is mediated by complement and leukotriene B4 Neutrophil swarming toward Cryptococcus neoformans is mediated by complement and leukotriene B4](/preview/png/10747981.png)
چکیده انگلیسی
Swarming behavior of neutrophils has been noticed in both sterile injury and infection models and the mechanisms are being unveiled. So far, no in vitro model has been established to study neutrophil swarming to microbes. In the current study, using live-cell imaging, we observed in vitro neutrophil swarming toward Cryptococcus neoformans, a fungal pathogen causing human meningoencephalitis. Complement C3 and CD11b expression are essential for neutrophils to form cell swarms surrounding C. neoformans. Leukotriene B4 (LTB4) was quickly released by neutrophils during their interactions with C. neoformans. Blockade of LTB4 synthesis inhibited the swarming response to C. neoformans. Importantly, blockade of LTB4 synthesis also significantly reduced neutrophil recruitment in the lung vasculature of mice infected intravenously with C. neoformans, demonstrating a critical role of LTB4 in intravascular neutrophil swarming during infection. Together, this is the first report of neutrophil dynamics of swarming toward a microorganism in vitro, mediated by complement and LTB4.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 477, Issue 4, 2 September 2016, Pages 945-951
Journal: Biochemical and Biophysical Research Communications - Volume 477, Issue 4, 2 September 2016, Pages 945-951
نویسندگان
Donglei Sun, Meiqing Shi,