{
  "id": 10726942,
  "title": "Translational Pharmacokinetics and Pharmacodynamics of a Cationic mRNA-Lipid Nanoparticle from Mice to Non-Human Primates",
  "url": "https://urgent.news/2026/09/29/translational-pharmacokinetics-and-pharmacodynamics-of-a-cationic",
  "topic": "health",
  "section": "Health & Medicine",
  "published": "2026-09-29T00:00:00.000Z",
  "source": {
    "name": "bioRxiv",
    "slug": "biorxiv",
    "url": "https://www.biorxiv.org/content/10.64898/2026.09.23.749423v1?rss=1"
  },
  "original_language": "en",
  "account": "In a recent study, researchers have successfully developed a cationic lipid nanoparticle (LNP) that shows promise for mRNA delivery to specific organs in animals. This type of nanoparticle has the potential to selectively target the pulmonary endothelium, which offers a unique advantage for extrahepatic mRNA delivery. However, previous studies have highlighted the challenges associated with the use of cationic LNPs, such as infusion-related immune reactions and activation of the innate immune system, often resulting in transient complement activation.\n\nThis case study focuses on the discovery and advancement of a selected cationic LNP in non-human primates (NHPs) for initial pharmacokinetic assessment and evaluation of any potential immunostimulatory side effects. The researchers demonstrate that the surface charge of the LNP plays a crucial role in the selective expression of reporter mRNAs within the body. In this study, they formulated an mRNA encoding the Tie2 agonist COMP-Angl with the LNP002 and conducted pharmacokinetic and pharmacodynamic readouts in two independent non-human primate studies.\n\nOne significant finding from this study is the ability to abrogate dose-dependent transient complement activation by extending the infusion time. Additionally, the researchers identified the blood-borne pharmacodynamic biomarker PDGFB as an indicator of Tie2-signalling in healthy pulmonary endothelium in vivo. This biomarker was discovered through single-cell sequencing and cluster-alignment of downstream effector genes, revealing a spatial profile that matches the delivered mRNA. This breakthrough opens up new possibilities for the development of targeted mRNA therapies in the future.",
  "summary": "Cationic lipid nanoparticles have demonstrated unique potential for extrahepatic mRNA delivery, particularly enabling selective targeting of the pulmonary endothelium. However, their translational development has been hampered by reports of infusion-related immune reactions and innate immune system activation, most notably transient complement activation. Here, we present a case study…",
  "key_points": [],
  "editors_take": null,
  "illustration": null,
  "coverage": {
    "outlets": 1,
    "also_reported_by": []
  },
  "ai_generated": true,
  "disclaimer": "Summaries, key points and the editor’s take are written by software from other outlets’ reporting and may contain errors — always check the linked original."
}