Manganese oxide nanoparticles for cell-free nucleic acid scavenging

This technology is an anionic manganese oxide nanoparticle that scavenges cell-free nucleic acids (cf-NAs) to reduce inflammation.

Unmet Need: Safe and effective scavenger of cell-free nucleic acids

Chronic inflammation is linked to damage-associated molecular patterns, including cell-free nucleic acids (cf-NAs), which activate innate immune responses. Dysregulated cf-NA-mediated inflammation contributes to a wide range of diseases, including rheumatoid arthritis, psoriasis, multiple sclerosis, and systemic lupus erythematosus. However, there are currently no therapies that selectively remove cf-NAs from circulation, and existing anti-inflammatory drugs do not directly target these inflammatory mediators.

The Technology: Low-toxicity, biodegradable anionic manganese oxide nanoparticles

This technology is an anionic manganese oxide nanoparticle that scavenges cell-free nucleic acids(cf-NAs). Its negatively charged surface promotes interactions with cf-NAs, particularly cell-free DNA (cfDNA), enabling the nanoparticles to act as scavengers, capturing cfDNA and inhibiting intracellular agonist-induced toll-like receptor (TLR) cell activation. The nanoparticles are biodegradable and exhibit lower toxicity than previously reported cf-NA scavengers, making them a promising therapeutic approach for inflammation-related diseases.

This technology has been validated using TLR cell lines.

Applications:

  • Treatment of autoimmune and Inflammatory diseases
  • Adjunctive therapy to inhibit cancer metastasis
  • Promotion of apoptotic cells clearance
  • Research tool for cell-free nucleic acid removal and immune signaling studies

Advantages:

  • Low toxicity
  • Biodegradable
  • Selectively scavenges inflammatory cell-free nucleic acids
  • Prolonged circulation time

Lead Inventor:

Kam W. Leong, Ph.D.

Patent Information:

Patent Pending(US20250255984)

Related Publications:

Tech Ventures Reference:

  • IR CU22060, CU22321

  • Licensing Contact: Dovina Qu

Quick Facts:
Tags
ApoptosisBiodegradationInflammationLupusMetastasisMultiple sclerosisNanoparticleNucleic acidPsoriasisRheumatoid arthritisScavengerToll-like receptor
Inventors
Kam LeongYiling Zhong
Manager
Dovina Qu
Departments
Biomedical Engineering
Divisions
Fu Foundation School of Engineering and Applied Science (SEAS)
Reference Number
CU22060
Release Date
2026-08-14