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Microenvironment-driven transformable self-assembly nanoplatform enables spatiotemporal remodeling for rheumatoid
Chuan Hu1, Jiaqi Ma1, Xi Chen1
1State Key Laboratory of Southwestern Chinese Medicine Resources, College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China.
Science Advances
|September 3, 2025
Summary
This study introduces a smart nanoplatform for rheumatoid arthritis (RA) management. It repairs damaged blood vessels and delivers drugs precisely to inflamed joints, offering a new therapeutic strategy.
Area of Science:
- Biomedical Engineering
- Nanotechnology
- Rheumatology
Background:
- Aberrant vasculature in rheumatoid arthritis (RA) exacerbates joint pathology.
- Compromised vasculature hinders effective therapeutic drug delivery in RA joints.
Purpose of the Study:
- To develop a nanoplatform for simultaneous vasculature repair and targeted drug delivery in RA.
- To achieve multifaceted RA management through spatiotemporal remodeling of the joint microenvironment.
Main Methods:
- A transformable, self-assembling nanoplatform guided by a vascular targeting peptide (STP).
- STP detachment triggers nanoparticle transformation into nanofibers for vascular repair.
- Charge-reversed nanoparticles with RGD exposure enable precise delivery of triptolide and metformin.
Main Results:
- Nanoplatform efficiently accumulates in inflamed RA joints.
- Shape transformation forms nanofibers, acting as a barrier and promoting vascular normalization.
- Targeted delivery of anti-RA and immunomodulatory agents is achieved.
Conclusions:
- The nanoplatform offers a potent strategy for RA management.
- This approach enables rapid, sustained, and precise spatiotemporal remodeling of RA joints.
- Intelligent self-assembling nanoplatforms show promise for complex disease treatment.
