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Low-Dose Oxygen Enhances Macrophage-Derived Bacterial Clearance following Cigarette Smoke Exposure
المؤلفون المشاركون
Bain, William G.
Tripathi, Ashutosh
Mandke, Pooja
Gans, Jonathan H.
D’Alessio, Franco R.
Sidhaye, Venkataramana K.
Aggarwal, Neil R.
المصدر
Journal of Immunology Research
العدد
المجلد 2016، العدد 2016 (31 ديسمبر/كانون الأول 2016)، ص ص. 1-14، 14ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2016-06-14
دولة النشر
مصر
عدد الصفحات
14
التخصصات الرئيسية
الملخص EN
Background.
Chronic obstructive pulmonary disease (COPD) is a common, smoking-related lung disease.
Patients with COPD frequently suffer disease exacerbations induced by bacterial respiratory infections, suggestive of impaired innate immunity.
Low-dose oxygen is a mainstay of therapy during COPD exacerbations; yet we understand little about whether oxygen can modulate the effects of cigarette smoke on lung immunity.
Methods.
Wild-type mice were exposed to cigarette smoke for 5 weeks, followed by intratracheal instillation of Pseudomonas aeruginosa (PAO1) and 21% or 35–40% oxygen.
After two days, lungs were harvested for PAO1 CFUs, and bronchoalveolar fluid was sampled for inflammatory markers.
In culture, macrophages were exposed to cigarette smoke and oxygen (40%) for 24 hours and then incubated with PAO1, followed by quantification of bacterial phagocytosis and inflammatory markers.
Results.
Mice exposed to 35–40% oxygen after cigarette smoke and PAO1 had improved survival and reduced lung CFUs and inflammation.
Macrophages from these mice expressed less TNF-α and more scavenger receptors.
In culture, macrophages exposed to cigarette smoke and oxygen also demonstrated decreased TNF-α secretion and enhanced phagocytosis of PAO1 bacteria.
Conclusions.
Our findings demonstrate a novel, protective role for low-dose oxygen following cigarette smoke and bacteria exposure that may be mediated by enhanced macrophage phagocytosis.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Bain, William G.& Tripathi, Ashutosh& Mandke, Pooja& Gans, Jonathan H.& D’Alessio, Franco R.& Sidhaye, Venkataramana K.…[et al.]. 2016. Low-Dose Oxygen Enhances Macrophage-Derived Bacterial Clearance following Cigarette Smoke Exposure. Journal of Immunology Research،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1108704
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Bain, William G.…[et al.]. Low-Dose Oxygen Enhances Macrophage-Derived Bacterial Clearance following Cigarette Smoke Exposure. Journal of Immunology Research No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1108704
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Bain, William G.& Tripathi, Ashutosh& Mandke, Pooja& Gans, Jonathan H.& D’Alessio, Franco R.& Sidhaye, Venkataramana K.…[et al.]. Low-Dose Oxygen Enhances Macrophage-Derived Bacterial Clearance following Cigarette Smoke Exposure. Journal of Immunology Research. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1108704
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1108704
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر
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