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.
Zhiqiang Zhao  #  1  2  3 Xinzhu Shan  #  1  2 Jing Ding  #  4 Bin Ma  #  1  2 Buyao Li  1  2 Wendi Huang  5 Qingqing Yang  6  7  8  9 Yian Fang  1  2 Junhe Chen  10 Chenglin Song  1 Chenlong Wei  1  2 Shuai Liu  11 Xingdi Cheng  11  12 Shengran Zhang  1  2 Yunxuan Liu  1  2 Hongkun Wu  13 Cong Luo  3 Shaokun Shu  6  7  8  9 Xue Qiao  1 Zefeng Wang  14  15 Xueguang Lu  16  17 Lei Miao  18  19  20
Affiliations
  • 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.
Abstract

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.

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