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Proteasome-dependent regulation of signal transduction in retinal pigment epith...

As in many other types of cells, retinal pigment epithelial (RPE) cells have an active ubiquitin-proteasome pathway (UPP). However, the function of the UPP in RPE remains to be elucidated. The objective of this study is to determine the role of the UPP in controlling the levels and activities of transcription factors hypoxia-inducible factor (HIF) and NF-[kappa]B. We inhibited the UPP with proteasome-specific i...