Boosting RNA nanotherapeutics with V-ATPase activating non-inflammatory lipid nanoparticles to treat chronic lung injury
- Nat Commun. 2025 Jul 14;16(1):6477. doi: 10.1038/s41467-025-61688-z.
- 1. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China.
- 2. Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China.
- 3. Department of Pharmaceutics, Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China.
- 4. Department of Pediatrics, Peking University People's Hospital, Beijing, PR China. [email protected].
- 5. Shanghai Institute for Nutrition and Health, Chinese Academy of Sciences, Shanghai, China.
- 6. Peking University International Cancer Institute, Beijing, China.
- 7. State Key Laboratory of Molecular Oncology, Peking University Cancer Hospital & Institute, Beijing, China.
- 8. Beijing Key Laboratory of Carcinogenesis and Translational Research, Department of Lymphoma, Peking University Cancer Hospital & Institute, Beijing, China.
- 9. Peking University-Yunnan Baiyao International Medical Research Center, Beijing, China.
- 10. University of North Carolina at Chapel Hill, North Carolina, USA.
- 11. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China.
- 12. University of Chinese Academy of Sciences, Beijing, China.
- 13. Department of Hepatobiliary and Pancreatic Surgery, the First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China.
- 14. Shanghai Institute for Nutrition and Health, Chinese Academy of Sciences, Shanghai, China. [email protected].
- 15. School of Life Science, Southern University of Science and Technology, Shenzhen, China. [email protected].
- 16. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, China. [email protected].
- 17. University of Chinese Academy of Sciences, Beijing, China. [email protected].
- 18. State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China. [email protected].
- 19. Beijing Key Laboratory of Molecular Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing, China. [email protected].
- 20. Peking University-Yunnan Baiyao International Medical Research Center, Beijing, China. [email protected].
- # Contributed equally.
Lipid nanoparticles (LNPs) are a promising platform for mRNA delivery. However, their use in inflammatory pulmonary diseases is limited by reactogenicity and suboptimal delivery. Here we develop a non-inflammatory LNP (NIF-LNP) by incorporating ursolic acid, identified from a natural product library, into a biodegradable, cationic phosphoramide-derived LNP formulation. NIF-LNPs exhibit a 40-fold enhancement in lung protein expression without causing significant reactogenicity compared to LNPs containing ALC-0315. Our CRISPR-KO mechanistic studies uncover that ursolic acid promote endosome acidification by activating the V-ATPase complex, acting as a central hub for endosomal trafficking of LNPs and inflammation control. Furthermore, we identify an intracellular circadian regulatory gene, NR1D1, encapsulated in NIF-LNPs, showing notable therapeutic efficacy in bronchopulmonary dysplasia and lung fibrosis. To enhance clinical feasibility, we have developed a lyophilized formulation that maintains stability for over 90 days and ensures efficient nebulization in preclinical male mouse, pup rat, and male dog models. Overall, this V-ATPase-activating atomized NIF-LNP presents a viable strategy for treating variable chronic inflammatory lung diseases.