Differential expression and activation of a family of murine peroxisome proliferator-activated receptors
- PMID: 8041794
- PMCID: PMC44398
- DOI: 10.1073/pnas.91.15.7355
Differential expression and activation of a family of murine peroxisome proliferator-activated receptors
Abstract
To gain insight into the function of peroxisome proliferator-activated receptor (PPAR) isoforms in mammals, we have cloned and characterized two PPAR alpha-related cDNAs (designated PPAR gamma and -delta, respectively) from mouse. The three PPAR isoforms display widely divergent patterns of expression during embryogenesis and in the adult. Surprisingly, PPAR gamma and -delta are not activated by pirinixic acid (Wy 14,643), a potent peroxisome proliferator and activator of PPAR alpha. However, PPAR gamma and -delta are activated by the structurally distinct peroxisome proliferator LY-171883 and linoleic acid, respectively, indicating that each of the isoforms can act as a regulated activator of transcription. These data suggest that tissue-specific responsiveness to peroxisome proliferators, including certain fatty acids, is in part a consequence of differential expression of multiple, pharmacologically distinct PPAR isoforms.
References
Publication types
MeSH terms
Substances
Associated data
- Actions
- Actions
LinkOut - more resources
Full Text Sources
Other Literature Sources
Molecular Biology Databases
