Glucose metabolism in lymphoid and inflammatory cells and tissues

被引:112
作者
Calder, Philip C. [1 ]
Dimitriadis, George [2 ]
Newsholme, Philip [3 ]
机构
[1] Univ Southampton, Sch Med, Inst Human Nutr, Southampton SO16 7PX, Hants, England
[2] Univ Athens, Sch Med, Attikon Univ Hosp, Res Inst & Diabet Ct,Dept Internal Med 2, GR-11527 Athens, Greece
[3] Univ Coll Dublin, Conway Inst, Sch Biomol & Biomed Sci, Dublin 2, Ireland
关键词
hyperglycaemia; immune system; insulin; lymphocyte; macrophage; neutrophil;
D O I
10.1097/MCO.0b013e3281e72ad4
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Purpose of review To examine the role of glucose as a fuel for immune cells and the influence of glucose supply on immune-cell functional responses. Recent findings Immune cells express the insulin receptor and a range of glucose-transporter isoforms. Glucose transporters are responsive to both immune stimulation and insulin. The pattern of glucose-transporter upregulation differs among different types of immune cell. In-vitro studies reveal that both hypo and hyperglycaemia impair immune-cell functions and promote inflammatory effects of hyperglycaemia and antiinflammatory and immune-promoting effects of insulin. Summary Glucose is readily utilized by cells of the immune system and is used to generate energy and biosynthetic precursors. Activation of immune cells is associated with increased glucose utilization and this is facilitated, in part, by increased expression of glucose transporters, Immune cells express the insulin receptor and respond to insulin. Both hypo- and hyperglycaemia impair immune-cell functions and promote inflammatory responses. Insulin therapy in hyperglycaemic subjects may be of benefit through effects of both insulin itself and lowered glucose concentraion. Excessive lowering of blood glucose concentraion may also be harmful to the immune response.
引用
收藏
页码:531 / 540
页数:10
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