Journal
PHARMACEUTICAL RESEARCH
Volume -, Issue -, Pages -Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11095-023-03589-8
Keywords
diseases; immunity; pathophysiological function; PHT1/PHT2; transporter
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PHT1 and PHT2 are two solute carrier family 15A proteins in mammals that transport histidine and some di/tripeptides across the membrane via a proton gradient. They are distributed in various tissues but are mainly expressed in immune cells and localized to lysosome-related organelles. The relationship between PHT1/PHT2 and immune diseases has been reported.
The oligopeptide/histidine transporters PHT1 and PHT2, two mammalian solute carrier family 15A proteins, mediate the transmembrane transport of histidine and some di/tripeptides via proton gradient. PHT1 and PHT2 are distributed in a variety of tissues but are preferentially expressed in immune cells and localize to the lysosome-related organelles. Studies have reported the relationships between PHT1/PHT2 and immune diseases. PHT1 and PHT2 participate in the regulation of lysosomal homeostasis and lysosome-associated signaling pathways through their transport and nontransport functions, playing important roles in inflammatory diseases. In this review, we summarize recent research on PHT1 and PHT2, aiming to provide reference for their further biological research and as targets for drug design.
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