Paradigm shift: the primary function of the “Adiponectin Receptors” is to regulate cell membrane composition

Lipids in Health and Disease

Marc Pilon¹ 

[1] Dept. Chemistry and Molecular Biology, Univ. Gothenburg, Box 462, S-405 30, Gothenburg, Sweden;

关键词: Adiponectin receptor;    Membrane fluidity;    Phospholipid;    Desaturase;    Ceramidase;    Caenorhabditis elegans;    Fatty acid;    Lipid metabolism;    LRIG;    PAQR;   

DOI  :  10.1186/s12944-021-01468-y

来源: Springer

【 摘 要 】

The ADIPOR1 and ADIPOR2 proteins (ADIPORs) are generally considered as adiponectin receptors with anti-diabetic properties. However, studies on the yeast and C. elegans homologs of the mammalian ADIPORs, and of the ADIPORs themselves in various mammalian cell models, support an updated/different view. Based on findings in these experimental models, the ADIPORs are now emerging as evolutionarily conserved regulators of membrane homeostasis that do not require adiponectin to act as membrane fluidity sensors and regulate phospholipid composition. More specifically, membrane rigidification activates ADIPOR signaling to promote fatty acid desaturation and incorporation of polyunsaturated fatty acids into membrane phospholipids until fluidity is restored. The present review summarizes the evidence supporting this new view of the ADIPORs, and briefly examines physiological consequences.

【 授权许可】

CC BY