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Updated: Jul 5, 2026
07:30
Homogeneous Time-resolved Förster Resonance Energy Transfer-based Assay for Detection of Insulin Secretion
Published on: May 10, 2018
Second messengers of insulin action
1Rockefeller University, New York, NY 10021, USA.
Trends in Endocrinology and Metabolism: TEM
|January 1, 1990
Summary
Insulin
Area of Science:
- Biochemistry
- Cellular Biology
- Molecular Endocrinology
Background:
- The precise molecular mechanisms linking the insulin receptor to cellular metabolism regulation are not fully understood.
- Emerging evidence suggests a novel oligosaccharide may mediate some insulin actions.
Purpose of the Study:
- To investigate the role of a novel oligosaccharide in insulin signaling.
- To explore the generation and function of a newly identified membrane glycolipid, glycosyl-phosphatidylinositol (GPI).
Main Methods:
- Analysis of insulin-dependent hydrolysis of membrane glycolipids.
- Structural comparison of the novel glycolipid to known protein anchors.
- Evaluation of hormonal regulation of the identified glycolipid.
Main Results:
- A novel membrane glycolipid, glycosyl-phosphatidylinositol (GPI), was identified.
- This GPI is structurally similar to known protein anchors.
- Insulin-dependent hydrolysis of GPI generates a novel oligosaccharide.
Conclusions:
- The novel oligosaccharide generated from GPI may act as a second messenger in insulin signaling.
- Investigating the hormonal regulation of GPI could reveal new signal transduction pathways.
- This research opens new avenues for understanding insulin's metabolic regulation.
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