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The paper explores how retinoic acid (RA) signaling uses feedback loops to maintain stable levels of Vitamin A metabolites, specifically examining the role of Retinoic Acid Receptors (RARs) and enzymes like Cyp26. Content Summary

It discusses the role of Retinoic Acid Response Elements (RAREs) in promoters as sensors that modulate the expression of retinoid-related genes.

Input overload: Contributions of retinoic acid signaling feedback to retinoid homeostasis Authors: Andrea Janesick, Bruce Blumberg, and others.

The research highlights that while direct activation of RA pathway genes via RAREs is understood, the mechanisms for negative feedback and suppression are still largely hypothetical. Accessing the Full Document