How liver cells build and maintain bile channels
Mechanisms of Hepatocyte Polarization and Apical Tube Formation
['FUNDING_R01'] · UNIVERSITY OF PENNSYLVANIA · NIH-11364592
This project aims to understand how liver cells form and keep the tiny bile channels they need to make bile and work properly.
Quick facts
| Phase | ['FUNDING_R01'] |
|---|---|
| Study type | Nih_funding |
| Sex | All |
| Sponsor | UNIVERSITY OF PENNSYLVANIA (nih funded) |
| Locations | 1 site (PHILADELPHIA, UNITED STATES) |
| Trial ID | NIH-11364592 on ClinicalTrials.gov |
What this research studies
You can think of liver cells as needing a clear inner plumbing system to move bile; this work uses a special rat liver cell line that makes tube-like bile channels in the lab to model that process. The researchers combine genetic and protein screening with cell biology experiments to study how cell division, cell–cell junctions, the orientation of the dividing machinery, and directed membrane traffic coordinate to form bile canaliculi. They also compare these mechanisms to what happens in mouse livers during development and regeneration to see if the same steps apply in animals. The goal is to map the molecular sequence that turns an initial division-linked canaliculus into a mature tubular bile channel.
Who could benefit from this research
Good fit: People with cholestatic liver disease or those at risk for hepatocellular carcinoma are the kinds of patients who might eventually benefit from advances based on this research.
Not a fit: Patients with conditions unrelated to bile formation or liver polarity are unlikely to receive direct benefit from this specific laboratory-focused work.
Why it matters
Potential benefit: If successful, this work could point to molecular targets to prevent or fix defects in bile formation that cause cholestasis and contribute to some liver cancers.
How similar studies have performed: Prior cell and animal studies have suggested links between cell division, junctional proteins, and canaliculus formation, but the detailed molecular mechanisms remain largely novel and incompletely described.
Where this research is happening
PHILADELPHIA, UNITED STATES
- UNIVERSITY OF PENNSYLVANIA — PHILADELPHIA, UNITED STATES (ACTIVE)
Researchers
- Principal investigator: BI, ERFEI — UNIVERSITY OF PENNSYLVANIA
- Study coordinator: BI, ERFEI
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.