Related Experiment Video
Updated: Aug 8, 2026

Insulin Injection and Hemolymph Extraction to Measure Insulin Sensitivity in Adult Drosophila melanogaster
Published on: June 30, 2011
Growth control: invertebrate insulin surprises!
1Ludwig Institute for Cancer Research, 91 Riding House Street, W1W 7BS, London, UK. sallyl@ludwig.ucl.ac.uk
Recent Drosophila research reveals novel insights into insulin signaling, a conserved pathway regulating growth and cell division. Invertebrates possess more insulin-like ligands than expected, with some acting as receptor antagonists.
Area of Science:
- Developmental Biology
- Endocrinology
- Genetics
Background:
- Insulin signaling is a conserved pathway regulating growth and cell division across species.
- Drosophila melanogaster serves as a model organism for studying conserved biological processes.
Purpose of the Study:
- To investigate the role of insulin signaling in Drosophila development.
- To explore the diversity and function of insulin-like ligands in invertebrates.
Main Methods:
- Utilized Drosophila as a model system.
- Investigated insulin signaling pathways.
- Analyzed insulin-like ligand expression and function.
Main Results:
- Identified novel insights into insulin signaling regulation of growth and cell division in Drosophila.
- Discovered a greater number of insulin-like ligands in invertebrates than previously predicted.
- Characterized some invertebrate insulin-like ligands as receptor antagonists.
Conclusions:
- Insulin signaling in Drosophila provides a model for conserved developmental regulation.
- Invertebrates exhibit a complex repertoire of insulin-like ligands with antagonistic functions.
Related Concept Videos
Insulin Secretory Vesicles
Hormones Regulating Blood Glucose
In addition to accelerating glucose uptake and utilization, insulin has...
Glucose Homeostasis: Pancreatic Islets and Insulin Secretion
Insulin and C-peptide are co-secreted in...
Insulin: The Receptor and Signaling Pathways
Insulin: Biosynthesis, Chemistry, and Preparation
Damage or functional impairment of β-cells inhibits insulin production, leading to diabetes. Diabetes treatment primarily uses...
Glucagon-like Receptor Agonists
GLP-1, when administered in high doses intravenously, triggers insulin secretion, inhibits glucagon release, slows gastric emptying, reduces food intake, and restores normal insulin secretion. However, its rapid inactivation by the...

