How the protein MRAP2 changes the hunger hormone ghrelin
Investigating the requirement of MRAP2 for ghrelin function
Researchers are looking at how the protein MRAP2 changes the hunger hormone ghrelin's effects to help people struggling with obesity.
Quick facts
| Grant type | R01 grant |
|---|---|
| Study type | NIH-funded research |
| Funding institution | University of Michigan at Ann Arbor NIH-funded |
| Lab location | 1 site (Ann Arbor, United States) |
| Project ID | NIH-11311948 on NIH RePORTER |
What this research studies
This work uses laboratory and animal models to see how MRAP2 alters the ghrelin receptor in brain hunger cells called AGRP neurons. The team will test MRAP2's effects on receptor activity, its interaction with arrestin proteins, and ghrelin-triggered signaling pathways that drive appetite. New tools developed in earlier work will let researchers turn specific signaling components on or off to pinpoint what matters for ghrelin's effects. Results could change how drugs are designed to reduce hunger by targeting the ghrelin receptor complex.
Who could benefit from this research
Good fit: Adults with overweight or obesity and increased appetite would be the most likely candidates for future therapies informed by this research.
Not a fit: People whose weight issues are driven mainly by non-appetite causes (for example, certain metabolic disorders or medication side effects) may not benefit from therapies focused on ghrelin/MRAP2.
Why it matters
Potential benefit: If successful, this could enable better treatments that reduce hunger and improve weight control by targeting MRAP2-ghrelin receptor interactions.
How similar studies have performed: Prior laboratory and animal studies have shown MRAP2 changes ghrelin receptor behavior, but translating these findings into treatments is largely new and untested.
Where this research is happening
Ann Arbor, United States
- University of Michigan at Ann Arbor — Ann Arbor, United States (Active)
Researchers
- Principal investigator: Sebag, Julien Albert — University of Michigan at Ann Arbor
- Study coordinator: Sebag, Julien Albert
About this research
- This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
- Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
- For full project details, budget, and progress reports, visit the official NIH RePORTER page below.