INFgamma stimulates arginine transport through system y+L in human monocytes.

Article Details

Citation

Rotoli BM, Bussolati O, Sala R, Barilli A, Talarico E, Gazzola GC, Dall'Asta V

INFgamma stimulates arginine transport through system y+L in human monocytes.

FEBS Lett. 2004 Jul 30;571(1-3):177-81.

PubMed ID
15280038 [ View in PubMed
]
Abstract

Freshly isolated human monocytes transport L-arginine mostly through a sodium independent, NEM insensitive pathway inhibited by L-leucine in the presence, but not in the absence of sodium. Interferon-gamma (IFNgamma) stimulates this pathway, identifiable with system y+L, and markedly enhances the expression of SLC7A7, the gene that encodes for system y+L subunit y+LAT1, but not of SLC7A6, that codes for the alternative subunit y+LAT2. System y+ plays a minor role in arginine uptake by monocytes and the expression of system y+-related genes, SLC7A1 and SLC7A2, is not changed by IFNgamma. These results demonstrate that system y+L is sensitive to IFNgamma.

DrugBank Data that Cites this Article

Polypeptides
NameUniProt ID
Y+L amino acid transporter 1Q9UM01Details
Y+L amino acid transporter 2Q92536Details