Toll-like receptor (TLR) 7/8 specific prodrugs are presented. In vivo activity of ImQs to induce inflammation was confirmed in zebrafish larvae. After covalent ligation to fully biodegradable polyphosphazenes (ImQ-polymer), the macromolecularprodrugs were designed to undergo intracellular pH-sensitive release of ImQs to induce inflammation through binding to endosomal TLR7/8 (danger signal). We showed ImQ
Biodegradable, water soluble and pH responsive poly(organo)phosphazenes
申请人:Teasdale Ian P.
公开号:US09192677B2
公开(公告)日:2015-11-24
The present invention relates in general to the field of targeted drug delivery of anti-cancer drugs. More precisely, the present invention concerns polymer drug conjugates, namely, conjugates of poly(organo)phosphazenes and anti-cancer drugs, wherein the conjugates are suitable to selectively release anti-cancer drugs in tumor tissue. In addition, the present invention relates to a method for manufacturing such poly(organo)phosphazene molecule conjugates, to poly(organo)phosphazene molecule conjugates for use in medicine, in particular, to poly(organo)phosphazene molecule conjugates for use in the treatment of cancer, and to pharmaceutical compositions comprising such poly(organo)phosphazene molecule conjugates.
We report the design, synthesis, and evaluation of synthetic multifunctional pores with adhesive, that is, electron-deficient naphthalenediimide (NDI) pi-clamps at their inner surface. We find that, in lipid bilayer membranes, comparable synthetic pores with and without pi-clamps have similar, nanomolar activity. Functional relevance of adhesive pi-clamping within synthetic pores is demonstrated by means of an innovative in situ blocker screening method. The obtained line of experimental evidence includes (a) different blockage efficiency with and without pi-clamps (quantified as clamping factors), (b) increasing clamping factors with increasing blocker charge (supportive ion pairing), and, most importantly, (c) increasing clamping factors with increasing aromatic electron donor-acceptor interactions. The availability of advanced synthetic multifunctional pores with refined active sites is important for practical applications in domains such as drug discovery (enzyme inhibitor screening) and diagnostics (multianalyte sensing).
BIODEGRADABLE, WATER SOLUBLE AND PH RESPONSIVE POLY(ORGANO)PHOSPHAZENES
申请人:Johannes Kepler Universität Linz
公开号:EP2613810B1
公开(公告)日:2015-07-15
MULTIFUNCTIONAL DEGRADABLE NANOPARTICLES WITH CONTROL OVER SIZE AND FUNCTIONALITIES
申请人:Harth Eva M.
公开号:US20130142733A1
公开(公告)日:2013-06-06
In one aspect, the invention relates to polymers, crosslinked polymers, functionalized polymers, nanoparticles, and functionalized nanoparticles and methods of making and using same. In one aspect, the invention relates to degradable polymers and degradable nanoparticles. In one aspect, the invention relates to methods of preparing degradable nanoparticles and, more specifically, methods of controlling particle size during the preparation of degradable nanoparticles. In one aspect, the degradable nanoparticles are useful for complexing, delivering, and releasing payloads, including pharmaceutically active payloads. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.