Uptake of nitric oxide synthase inhibitors by macrophage RAW 264.7 cells.
Ontology highlight
ABSTRACT: Uptake of the nitric oxide synthase inhibitors NG-methyl-L-arginine (L-NMA) and NG-nitro-L-arginine (L-NNA) by macrophages is mediated by two different mechanisms. Activation of the cells with cytokines resulted in an up-regulation of L-NMA uptake but did not affect L-NNA transport. Characterization of the transport sites revealed that uptake of L-NMA is mediated by a cationic amino acid transporter (system y+) whereas a neutral amino acid transporter (system L) accounts for the uptake of L-NNA.
SUBMITTER: Schmidt K
PROVIDER: S-EPMC1137080 | biostudies-other | 1994 Jul
REPOSITORIES: biostudies-other
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