Glucose is a vital source of energy for all mammals.The balance between glucose uptake,metabolism and storage determines the energy status of an individual,and perturbations in this balance can lead to metabolic disea...Glucose is a vital source of energy for all mammals.The balance between glucose uptake,metabolism and storage determines the energy status of an individual,and perturbations in this balance can lead to metabolic diseases.The maintenance of organismal glucose metabolism is a complex process that involves multiple tissues,including adipose tissue,which is an endocrine and energy storage organ that is critical for the regulation of systemic metabolism.Adipose tissue consists of an array of different cell types,including specialized adipocytes and stromal and endothelial cells.In addition,adipose tissue harbors a wide range of immune cells that play vital roles in adipose tissue homeostasis and function.These cells contribute to the regulation of systemic metabolism by modulating the inflammatory tone of adipose tissue,which is directly linked to insulin sensitivity and signaling.Furthermore,these cells affect the control of thermogenesis.While lean adipose tissue is rich in type 2 and anti-inflammatory cytokines such as IL-10,obesity tips the balance in favor of a proinflammatory milieu,leading to the development of insulin resistance and the dysregulation of systemic metabolism.Notably,anti-inflammatory immune cells,including regulatory T cells and innate lymphocytes,protect against insulin resistance and have the characteristics of tissue-resident cells,while proinflammatory immune cells are recruited from the circulation to obese adipose tissue.Here,we review the key findings that have shaped our understanding of how immune cells regulate adipose tissue homeostasis to control organismal metabolism.展开更多
The immune system plays a crucial role in protecting the body from invading pathogens and maintaining tissue homoeostasis.Maintaining homoeostatic lipid metabolism is an important aspect of efficient immune cell funct...The immune system plays a crucial role in protecting the body from invading pathogens and maintaining tissue homoeostasis.Maintaining homoeostatic lipid metabolism is an important aspect of efficient immune cell function and when disrupted immune cell function is impaired.There are numerous metabolic diseases whereby systemic lipid metabolism and cellular function is impaired.In the context of metabolic disorders,chronic inflammation is suggested to be a major contributor to disease progression.A major contributor to tissue dysfunction in metabolic disease is ectopic lipid deposition,which is generally caused by diet and genetic factors.Thus,we propose the idea,that similar to tissue and organ damage in metabolic disorders,excessive accumulation of lipid in immune cells promotes a dysfunctional immune system(beyond the classical foam cell)and contributes to disease pathology.Herein,we review the evidence that lipid accumulation through diet can modulate the production and function of immune cells by altering cellular lipid content.This can impact immune cell signalling,activation,migration,and death,ultimately affecting key aspects of the immune system such as neutralising pathogens,antigen presentation,effector cell activation and resolving inflammation.展开更多
Correction to:Cellular&Molecular Immunology https://doi.org/10.1038/s41423-021-00804-7,published online 26 November 2021 The article Resident and migratory adipose immune cells control systemic metabolism and ther...Correction to:Cellular&Molecular Immunology https://doi.org/10.1038/s41423-021-00804-7,published online 26 November 2021 The article Resident and migratory adipose immune cells control systemic metabolism and thermogenesis,written by Kevin Man,Axel Kallies and Ajithkumar Vasanthakumar was originally published electronically on the publisher’s internet portal on 24.11.2021 without open access.展开更多
文摘Glucose is a vital source of energy for all mammals.The balance between glucose uptake,metabolism and storage determines the energy status of an individual,and perturbations in this balance can lead to metabolic diseases.The maintenance of organismal glucose metabolism is a complex process that involves multiple tissues,including adipose tissue,which is an endocrine and energy storage organ that is critical for the regulation of systemic metabolism.Adipose tissue consists of an array of different cell types,including specialized adipocytes and stromal and endothelial cells.In addition,adipose tissue harbors a wide range of immune cells that play vital roles in adipose tissue homeostasis and function.These cells contribute to the regulation of systemic metabolism by modulating the inflammatory tone of adipose tissue,which is directly linked to insulin sensitivity and signaling.Furthermore,these cells affect the control of thermogenesis.While lean adipose tissue is rich in type 2 and anti-inflammatory cytokines such as IL-10,obesity tips the balance in favor of a proinflammatory milieu,leading to the development of insulin resistance and the dysregulation of systemic metabolism.Notably,anti-inflammatory immune cells,including regulatory T cells and innate lymphocytes,protect against insulin resistance and have the characteristics of tissue-resident cells,while proinflammatory immune cells are recruited from the circulation to obese adipose tissue.Here,we review the key findings that have shaped our understanding of how immune cells regulate adipose tissue homeostasis to control organismal metabolism.
基金National Health and Medical Research Council of Australia grants GNT2027074&GNT2012119 to KM,GNT1189012 to GIL and GNT1194329 to AJM.
文摘The immune system plays a crucial role in protecting the body from invading pathogens and maintaining tissue homoeostasis.Maintaining homoeostatic lipid metabolism is an important aspect of efficient immune cell function and when disrupted immune cell function is impaired.There are numerous metabolic diseases whereby systemic lipid metabolism and cellular function is impaired.In the context of metabolic disorders,chronic inflammation is suggested to be a major contributor to disease progression.A major contributor to tissue dysfunction in metabolic disease is ectopic lipid deposition,which is generally caused by diet and genetic factors.Thus,we propose the idea,that similar to tissue and organ damage in metabolic disorders,excessive accumulation of lipid in immune cells promotes a dysfunctional immune system(beyond the classical foam cell)and contributes to disease pathology.Herein,we review the evidence that lipid accumulation through diet can modulate the production and function of immune cells by altering cellular lipid content.This can impact immune cell signalling,activation,migration,and death,ultimately affecting key aspects of the immune system such as neutralising pathogens,antigen presentation,effector cell activation and resolving inflammation.
文摘Correction to:Cellular&Molecular Immunology https://doi.org/10.1038/s41423-021-00804-7,published online 26 November 2021 The article Resident and migratory adipose immune cells control systemic metabolism and thermogenesis,written by Kevin Man,Axel Kallies and Ajithkumar Vasanthakumar was originally published electronically on the publisher’s internet portal on 24.11.2021 without open access.
