Synthesis and in vitro evaluation of a multifunctional and surface-switchable nanoemulsion platform
作者:Anita Gianella、Aneta J. Mieszawska、Freek J. M. Hoeben、Henk M. Janssen、Peter A. Jarzyna、David P. Cormode、Kevin D. Costa、Satish Rao、Omid C. Farokhzad、Robert Langer、Zahi A. Fayad、Willem J. M. Mulder
DOI:10.1039/c3cc43618g
日期:——
We present a multifunctional nanoparticle platform that has targeting moieties shielded by a matrix metalloproteinase-2 (MMP2) cleavable PEG coating. Upon incubation with MMP2 this surface-switchable coating is removed and the targeting ligands become available for binding. The concept was evaluated in vitro using biotin and αvβ3-integrin-specific RGD-peptide functionalized nanoparticles.
Polymeric prodrugs and subcutaneous and/or intramuscular administration thereof
申请人:CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
公开号:US20200353090A1
公开(公告)日:2020-11-12
The invention relates to new prodrugs of active molecules. These prodrugs allow, in particular, the subcutaneous or intramuscular administration of active molecules of which the subcutaneous or intramuscular administration is problematic or impossible, in particular because of the toxicity at the injection site. The prodrugs according to the invention comprise an active ingredient, covalently linked with a polymer chain, preferably a hydrophilic and/or thermosensitive polymer chain. The invention relates, in particular, to polymeric prodrugs comprising a polymer chain formed at least in part by acrylamide monomer or one of its derivatives, the polymer comprising a proximal part and a terminal part; a first pharmaceutically active molecule covalently coupled to the proximal part of the polymer; possibly a second pharmaceutically active molecule covalently coupled to the terminal part of the polymer.
Extremely Fast Gas/Liquid Reactions in Flow Microreactors: Carboxylation of Short-Lived Organolithiums
作者:Aiichiro Nagaki、Yusuke Takahashi、Jun-ichi Yoshida
DOI:10.1002/chem.201402520
日期:2014.6.23
Carboxylation of short‐lived organolithiums bearing electrophilic functional groups such as nitro, cyano, and alkoxycarbonyl groups with CO2 to give carboxylic acids and active esters was accomplished in a flowmicroreactor system. The successful reactions indicate that gas/liquid mass transfer and the subsequent chemical reaction with CO2 are extremelyfast.
various origins. We, therefore, selected a c(RGDfK) moiety recognizing αvβ3 as an active tumor-targeting device to conjugate with icosahedral boron-10 clusters, disodium mercaptododecaborate (BSH) or o-carborane as a thermal neutron-sensitizing unit. Preparation of o-carborane derivatives involved microwave irradiation, and resulted in high yields in a short time. An in vitro cell adhesion assay on αvβ3-positive
A fluorescent Arg–Gly–Asp (RGD) peptide–naphthalenediimide (NDI) conjugate for imaging integrin α<sub>v</sub>β<sub>3</sub>in vitro
作者:Zhiyuan Hu、Rory L. Arrowsmith、James A. Tyson、Vincenzo Mirabello、Haobo Ge、Ian M. Eggleston、Stanley W. Botchway、G. Dan Pantos、Sofia I. Pascu
DOI:10.1039/c4cc08265f
日期:——
We have developed a fluorescent peptide conjugate (TrpNDIRGDfK) based on the coupling of cyclo(RGDfK) to a new tryptophan-tagged amino acid naphthalenediimide (TrpNDI).