Publications by authors named "R Gref"

Article Synopsis
  • This work investigates a new cancer treatment strategy using porous metal-organic frameworks (nanoMOFs) combined with the anti-cancer drug Gemcitabine monophosphate (GemMP) and particle therapy, which improves precision in targeting tumors compared to traditional radiotherapy.
  • The study addresses key challenges in cancer therapy, particularly the impact of hypoxia and the microenvironment around tumors, showing that GemMP-loaded nanoMOFs enhance the effectiveness of particle therapy in both oxygen-rich and oxygen-poor conditions while allowing for lower radiation doses.
  • The research concludes that nanoMOFs significantly improve drug delivery to cancer cells, demonstrating potential for developing "all-in-one" nanodrugs that optimize treatment and increase the cytotoxic effects on hypoxic tumors.
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This note aims to inspire through providing a personal view of the development and potential Drug Delivery Nanocarriers functionalized with polythyleneglycol (PEG). This polymer has been used extensively in Pharmaceutical Technology in a variety of compositions, including polyethylene oxide (PEO)-based surfactants. However, the concept of PEGylation, which started in the 70's, differs from the functionality of a surfactant, already discloses in the 50's.

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Nanoparticles (NPs) engineered as drug delivery systems continue to make breakthroughs as they offer numerous advantages over free therapeutics. However, the poor understanding of the interplay between the NPs and biomolecules, especially blood proteins, obstructs NP translation to clinics. Nano-bio interactions determine the NPs' in vivo fate, efficacy and immunotoxicity, potentially altering protein function.

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Porous iron(III) carboxylate metal-organic frameworks (MIL-100; MIL stands for Material of Institute Lavoisier) of submicronic size (nanoMOFs) have attracted a growing interest in the field of drug delivery due to their high drug payloads, excellent entrapment efficiencies, biodegradable character, and poor toxicity. However, only a few studies have dealt with the nanoMOF degradation mechanism, which is key to their biological applications. Complementary methods have been used here to investigate the degradation mechanism of Fe-based nanoMOFs under neutral or acidic conditions and in the presence of albumin.

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