Direct regulation of Na(+)-dependent myo-inositol transport by sugars in retinal pigment epithelium: role of phorbol ester and staurosporin.


An Na(+)-dependent active process for myo-inositol (MI) uptake, sharing a common carrier system with glucose and sensitive to phlorizin, was previously established in primary cultures of bovine retinal pigment epithelial (RPE) cells (26, 32). The present report further examines the nature of glucose-induced inhibition of MI transport in primary cultures of… (More)


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