Abstract
Cellular retinoic acid binding protein I (CRABP-I) plays a role in retinoic acid (RA) metabolism or transport. This report shows specific neuronal expression of CRABP-I in adult transgenic mouse brain using CRABP-I promotor-driven lac-Z and neuron- and astrocyte-markers. Double staining indicates that CRABP-I is expressed in neurons and large cells (>12 μm) but to much lesser degree the astrocytes. CRABP-I-lac-Z+ neurons were distributed throughout the brain, but in a very discreet pattern in each brain region. CRABP-I expression in specific populations of brain neurons suggests that RA is extensively metabolized in mature brains, mostly in neurons. Additionally, the genetic basis of its specific expression in these brain areas is located in the 5′ regulatory region of this gene.
Original language | English |
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Pages (from-to) | 67-72 |
Number of pages | 6 |
Journal | Gene Expression Patterns |
Volume | 1 |
Issue number | 1 |
DOIs | |
State | Published - 08 2001 |
Externally published | Yes |
Keywords
- Adult transgenic mouse brain
- Cellular retinoic acid binding protein I
- Development and regeneration
- Neural plasticity
- Neurotrophic factors: expression and regulation
- Retinoic acid
- Vitamin A