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Updated: May 30, 2026

Fatty Acid 13C Isotopologue Profiling Provides Insight into Trophic Carbon Transfer and Lipid Metabolism of Invertebrate Consumers
Published on: April 17, 2018
Isoprenoid is a perfect fit for fat factor
1School of Biotechnology and Biomolecular Sciences, The University of New South Wales, Sydney, Australia. aj.brown@unsw.edu.au
Abstract:
In humans, there are 48 members of the superfamily of nuclear receptors. These ligand-activated transcription factors help to integrate our growth, reproduction and metabolism via environmental, nutritional and intrinsic cues. It is therefore not surprising that nuclear receptors are commonly used as drug targets. However, perhaps in the rush to discover new drugs that target these receptors, we sometimes lose sight of their 'real' physiological ligands. In this issue of the Biochemical Journal Goto et al. present evidence that the isoprenoid FPP (farnesyl pyrophosphate) may be a bona fide ligand for the master controller of adipocyte differentiation PPARγ (peroxisome-proliferator-activated receptor γ). This work has wide-ranging implications not only for obesity and diabetes, but also for osteoporosis and the control of circadian rhythms in which PPARγ also plays an important role.
Insights
Farnesyl pyrophosphate (FPP) may be a natural ligand for peroxisome proliferator-activated receptor gamma (PPARγ), a key regulator of fat cell differentiation. This discovery impacts understanding of obesity, diabetes, and circadian rhythms.
Area of Science:
- Biochemistry
- Molecular Biology
- Endocrinology
Background:
- Nuclear receptors are crucial transcription factors regulating growth, reproduction, and metabolism.
- Nuclear receptors are significant drug targets, but their endogenous ligands are not always fully understood.
- Peroxisome proliferator-activated receptor gamma (PPARγ) is a master regulator of adipocyte differentiation.
Purpose of the Study:
- To identify potential physiological ligands for PPARγ.
- To investigate the role of isoprenoids as ligands for nuclear receptors.
Main Methods:
- Biochemical assays to test ligand binding to PPARγ.
- Studies on adipocyte differentiation in response to FPP.
Main Results:
- Evidence suggests farnesyl pyrophosphate (FPP) acts as a bona fide ligand for PPARγ.
- FPP binding influences PPARγ's role in adipocyte differentiation.
Conclusions:
- FPP is identified as a physiological ligand for PPARγ.
- This finding has implications for metabolic diseases like obesity and diabetes, as well as osteoporosis and circadian rhythm regulation.
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