alexa Passage of peptides through the blood-brain barrier with colloidal polymer particles (nanoparticles).
Materials Science

Materials Science

Journal of Nanomedicine & Biotherapeutic Discovery

Author(s): Kreuter J, Alyautdin RN, Kharkevich DA, Ivanov AA

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Abstract Transport of the hexapeptide dalargin across the blood-brain barrier was accomplished using a nanoparticle formulation. The formulation consisted of dalargin bound to poly(butyl cyanoacrylate) nanoparticles by sorption, coated with polysorbate 80. Intravenous injection of this formulation to mice resulted in an analgesic effect. All controls, including a simple mixture of the three components (drugs, nanoparticles, and surfactant) mixed directly before i.v. injection, exhibited no effect. Analgesia was also prevented by pretreatment with naloxone. Fluorescent and electron microscopic studies indicated that the passage of the particle-bound drug occurred by phagocytic uptake of the polysorbate 80-coated nanoparticles by the brain blood vessel endothelial cells.
This article was published in Brain Res and referenced in Journal of Nanomedicine & Biotherapeutic Discovery

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