烟酰胺磷酸核糖转移酶
细胞内
细胞因子
细胞外
NAD+激酶
细胞生物学
髓样
单核细胞
免疫学
癌症研究
炎症
化学
生物
酶
医学
生物化学
作者
Cristina Travelli,Giorgia Colombo,Silvia Mola,Armando A. Genazzani,Chiara Porta
标识
DOI:10.1016/j.phrs.2018.06.022
摘要
Nicotinamide phosphoribosyltransferase (NAMPT) is the bottleneck enzyme of the NAD salvage pathway and thereby is a controller of intracellular NAD concentrations. It has been long known that the same enzyme can be secreted by a number of cell types and acts as a cytokine, although its receptor is at present unknown. Investigational compounds have been developed that target the enzymatic activity as well as the extracellular action (i.e. neutralizing antibodies). The present contribution reviews the evidence that links intracellular and extracellular NAMPT to myeloid biology, for example governing monocyte/macrophage differentiation, polarization and migration. Furthermore, it reviews the evidence that links this protein to some disorders in which myeloid cells have a prominent role (acute infarct, inflammatory bowel disease, acute lung injury and rheumatoid arthritis) and the data showing that inhibition of the enzymatic activity or the neutralization of the cytokine is beneficial in preclinical animal models.
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