'Prodrug-Like' Acetylmannosamine Modified Liposomes Loaded With Arsenic Trioxide for the Treatment of Orthotopic Glioma in Mice.

Journal of Pharmaceutical Sciences
Na WangZhimin Du

Abstract

Glioma is one of the fatal intracranial cancers that is a huge challenge to decrease the death rate currently. The deep penetration and high accumulation of therapeutic inorganic ions into the tumor site are extremely impeded due to the existence of physiological barriers, which limits to widen the indication of some drugs such as arsenic trioxide. The previous data have confirmed that the mannose substrate (MAN) without acetyl groups facilitates vesicles to go into the brain. Given that deacetylation of Ac4MAN groups on the surface of liposomes under the enzyme incubation occurred, namely 'prodrug-like' features of vesicles, the liposomes could more easily penetrate the BBB, target the glioma site, release arsenic trioxide, and inhibit the growth of glioma cells in the brain. Besides, the possibility of Ac4MAN binding to Gluts could be reduced due to the steric hindrance of acetyl groups, decreasing the off-target effects of vesicles. Here, we developed 'prodrug-like' arsenic trioxide (As2O3, ATO)-loaded liposomes inserted with distearoyl phospho-ethanolamine-polyethylene glycol-1000-p-carboxylpheny-α-d-acetylmannosamine (DSPE-PEG-1000-Ac4MAN), which was named Ac4MAN-ATO-LIP. Cytotoxic experiments of liposomes indicated that t...Continue Reading

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Citations

Aug 2, 2021·Cellular and Molecular Life Sciences : CMLS·Mariana MedeirosMaría Sol Brassesco
Oct 13, 2021·Chemical Society Reviews·Shukun TangQun Wang

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