Restriction of retinoic acid activity by Cyp26b1 is required for proper timing and patterning of osteogenesis during zebrafish development.

Abstract excerpt

Skeletal syndromes are among the most common birth defects. Vertebrate skeletogenesis involves two major cell types: cartilage-forming chondrocytes and bone-forming osteoblasts. In vitro, both are under the control of retinoic acid (RA), but its exact in vivo effects remained elusive. Here, based on the positional cloning of the dolphin mutation, we have studied the role of the RA-oxidizing enzyme Cyp26b1 during...

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