Role of GALNT2 on Insulin Sensitivity, Lipid Metabolism and Fat Homeostasis

International Journal of Molecular Sciences

Antonella Marucci¹  Vincenzo Trischitta¹  Rosa Di Paola¹  Alessandra Antonucci¹ 

[1] Research Unit of Diabetes and Endocrine Diseases, Fondazione IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo (FG), 71013 Foggia, Italy;

关键词: ppGalNAc-T2;    O-linked glycosylation;    metabolic abnormalities;    insulin resistance;    atherogenic dyslipidemia;    obesity;   

DOI  :  10.3390/ijms23020929

来源: DOAJ

【 摘 要 】

O-linked glycosylation, the greatest form of post-translational modifications, plays a key role in regulating the majority of physiological processes. It is, therefore, not surprising that abnormal O-linked glycosylation has been related to several human diseases. Recently, GALNT2, which encodes the GalNAc-transferase 2 involved in the first step of O-linked glycosylation, has attracted great attention as a possible player in many highly prevalent human metabolic diseases, including atherogenic dyslipidemia, type 2 diabetes and obesity, all clustered on the common ground of insulin resistance. Data available both in human and animal models point to GALNT2 as a molecule that shapes the risk of the aforementioned abnormalities affecting diverse protein functions, which eventually cause clinically distinct phenotypes (a typical example of pleiotropism). Pathways linking GALNT2 to dyslipidemia and insulin resistance have been partly identified, while those for type 2 diabetes and obesity are yet to be understood. Here, we will provide a brief overview on the present knowledge on GALNT2 function and dysfunction and propose novel insights on the complex pathogenesis of the aforementioned metabolic diseases, which all impose a heavy burden for patients, their families and the entire society.

【 授权许可】

Unknown