Academic Journal

Glycolysis Is Required for LPS-Induced Activation and Adhesion of Human CD14+CD16− Monocytes

التفاصيل البيبلوغرافية
العنوان: Glycolysis Is Required for LPS-Induced Activation and Adhesion of Human CD14+CD16− Monocytes
المؤلفون: Man K. S. Lee, Annas Al-Sharea, Waled A. Shihata, Camilla Bertuzzo Veiga, Olivia D. Cooney, Andrew J. Fleetwood, Michelle C. Flynn, Ellen Claeson, Clovis S. Palmer, Graeme I. Lancaster, Darren C. Henstridge, John A. Hamilton, Andrew J. Murphy
المصدر: Frontiers in Immunology, Vol 10 (2019)
بيانات النشر: Frontiers Media S.A., 2019.
سنة النشر: 2019
المجموعة: LCC:Immunologic diseases. Allergy
مصطلحات موضوعية: glycolysis, monocytes, inflammation, metabolism, adhesion, Immunologic diseases. Allergy, RC581-607
الوصف: Monocytes in humans consist of 3 subsets; CD14+CD16− (classical), CD14+CD16+ (intermediate) and CD14dimCD16+ (non-classical), which exhibit distinct and heterogeneous responses to activation. During acute inflammation CD14+CD16− monocytes are significantly elevated and migrate to the sites of injury via the adhesion cascade. The field of immunometabolism has begun to elucidate the importance of the engagement of specific metabolic pathways in immune cell function. Yet, little is known about monocyte metabolism and the role of metabolism in mediating monocyte activation and adherence to vessels. Accordingly, we aimed to determine whether manipulating the metabolism of CD14+CD16− monocytes alters their ability to become activated and adhere. We discovered that LPS stimulation increased the rate of glycolysis in human CD14+CD16− monocytes. Inhibition of glycolysis with 2-deoxy-D-glucose blunted LPS-induced activation and adhesion of monocytes. Mechanistically, we found that increased glycolysis was regulated by mTOR-induced glucose transporter (GLUT)-1. Furthermore, enhanced glycolysis increased accumulation of reactive oxygen species (ROS) and activation of p38 MAPK, which lead to activation and adhesion of monocytes. These findings reveal that glycolytic metabolism is critical for the activation of CD14+CD16− monocytes and contributes to our understanding of the interplay between metabolic substrate preference and immune cell function.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1664-3224
Relation: https://www.frontiersin.org/article/10.3389/fimmu.2019.02054/full; https://doaj.org/toc/1664-3224
DOI: 10.3389/fimmu.2019.02054
URL الوصول: https://doaj.org/article/877fdbb79e87480fa17aaf1845695887
رقم الانضمام: edsdoj.877fdbb79e87480fa17aaf1845695887
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:16643224
DOI:10.3389/fimmu.2019.02054