Tiny skin particles that may drive sun damage and inflammation
Official title: Extracellular vesicles as a novel mediator for ultraviolet-B light induced photoaging and skin inflammation.
Funded at Philadelphia VA Medical Center · NIH-11213959 · Data updated 2026-11-12
This project looks at whether small packets released by sun‑exposed skin cells cause skin inflammation and aging, which could matter for people with sun-damaged skin including military personnel and veterans.
Quick facts
| Grant type | NIH-funded research |
|---|---|
| Study type | NIH-funded research |
| Funding institution | Philadelphia VA Medical Center NIH-funded |
| Lab location | 1 site (Philadelphia, United States) |
| Project start | October 1, 2023 |
| Project end | September 30, 2027 |
| Funding year | 2026 |
| NIH project number | 5I01BX005921-03 |
| Project ID | NIH-11213959 on NIH RePORTER |
Who could benefit from this research
✓Could help
People with a history of frequent sun exposure, visible sun damage, actinic changes, or those concerned about UV-related skin inflammation (including military personnel and veterans) would be the population most relevant to these findings.
✕Less likely to help
Patients whose skin issues are not related to UV exposure or who have purely genetic skin disorders may not see direct benefit from this line of research.
What this research studies
From a patient's perspective, researchers expose skin cells and mice to UVB light to make the tiny packets (extracellular vesicles) that skin cells release. They collect and analyze those vesicles to see what they carry and how they affect dermal fibroblasts and immune cells. The team will use a drug that blocks vesicle release and study key inflammation pathways (like STING, NLRP3, and NF‑kB) to see if blocking vesicles reduces damage. Findings could reveal whether these vesicles travel from the outer skin layer into deeper skin or the body to cause photoaging.
Why it matters
Potential benefit: If this work succeeds, it could point to new ways to prevent or treat UV‑driven skin inflammation and premature skin aging by targeting harmful skin-derived vesicles.
How similar studies have gone: Laboratory studies already show UV‑exposed skin cells release vesicles that can trigger inflammation, but using vesicle blockade to prevent photoaging is a novel and early-stage approach.
Where this research is happening
-
Philadelphia VA Medical Center
Philadelphia, United States Active
Researchers
- Principal investigator: Werth, Victoria P — Philadelphia VA Medical Center
- Study coordinator: Werth, Victoria P
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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.