Immune and Metabolic Interactions of Human Erythrocytes: A Molecular Perspective

Author(s): Charalampos Papadopoulos, Maria Panopoulou, Konstantinos Anagnostopoulos*, Ioannis Tentes

Journal Name: Endocrine, Metabolic & Immune Disorders - Drug Targets
Formerly Current Drug Targets - Immune, Endocrine & Metabolic Disorders

Volume 21 , Issue 5 , 2021


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Abstract:

Apart from their main function as oxygen carriers in vertebrates, erythrocytes are also involved in immune regulation. By circulating throughout the body, the erythrocytes are exposed and interact with tissues that are damaged as a result of a disease. In this study, we summarize the literature regarding the contribution of erythrocytes to immune regulation and metabolism. Under the circumstances of a disease state, the erythrocytes may lose their antioxidant capacity and release Damage Associated Molecular Patterns, resulting in the regulation of innate and adaptive immunity. In addition, the erythrocytes scavenge and affect the levels of chemokines, circulating cell-free mtDNA, and C3b attached immune complexes. Furthermore, through surface molecules, erythrocytes control the function of T lymphocytes, macrophages, and dendritic cells. Through an array of enzymes, red blood cells contribute to the pool of blood’s bioactive lipids. Finally, the erythrocytes contribute to reverse cholesterol transport through various mechanisms. Our study is highlighting overlooked molecular interactions between erythrocytes and immunity and metabolism, which could lead to the discovery of potent therapeutic targets for immunometabolic diseases.

Keywords: Erythrocytes, immunity, metabolism, lipid signaling, reverse cholesterol transport, cytokine signaling, DAMP binding, DAMP release, cellular interactions.

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Article Details

VOLUME: 21
ISSUE: 5
Year: 2021
Published on: 06 May, 2021
Page: [843 - 853]
Pages: 11
DOI: 10.2174/1871530320666201104115016
Price: $65

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