Radiolabeled Nanohybrids Targeting Solid Tumor Neovasculature and Method of Using Same
申请人:Line Bruce R.
公开号:US20080193377A1
公开(公告)日:2008-08-14
Nanohybrid polymer conjugates that provide a “platform” delivery system is disclosed. The delivery platform provides a multi-focused therapeutic regimen that may be tailored to combat a host of cancers, including advanced-stage, therapy-resistant tumors. The nanohybrids of the instant invention incorporate a configurable polymeric backbone, are multivalent (e.g., may incorporate several targeting ligands), and have the capacity to carry multiple classes of “payloads” (e.g., alpha-, beta-, gamma- and positron-emitting isotopes). The polymer conjugates comprise a single molecular species that can be useful not only in diagnostic assessment, but also in tailoring therapies to suit a variety of cancers.
An energy transfer fluorescent probe for detecting a reagent is provided which includes a fluorescent reporter molecule and a quencher molecule positioned on the probe relative to the reporter molecule such that the quencher molecule quenches the fluorescence of the reporter molecule when in a first state, the quencher molecule being converted by the reagent to a second state which has a reduced ability to quench the reporter molecule. Examples of conversions of the quencher molecule from a first state to a second state include reductions, oxidations, hydrolyses, phosphate cleavages, and the conversion of amides to amines. In one embodiment, the quencher molecule is a substrate for an enzyme which converts the quencher from a first state to a second state. For example, the enzyme may be an reductase, an oxidase, hydrolytic, a peptidase or a phosphorylase. The probe is used to fluorescently detect a reagent in a sample. According to the method, the probe is contacted with the sample containing the reagent wherein the quencher molecule is converted by the reagent from a first state which is able to quench the fluorescence of the reporter molecule to a second state which has a reduced ability to quench the reporter molecule. The reagent is detected by monitoring the fluorescence intensity of the reporter molecule as the quencher molecule is converted from the first state to the second state by the reagent.
[EN] RADIOLABELED NANOHYBRIDS TARGETING SOLID TUMOR NEOVASCULATURE AND METHOD OF USING SAME<br/>[FR] NANOHYBRIDES RADIOMARQUES CIBLANT UN SYSTEME NEOVASCULAIRE DE LA TUMEUR SOLIDE ET PROCEDE D'UTILISATION ASSOCIE
申请人:UNIV MARYLAND
公开号:WO2006012355A3
公开(公告)日:2006-07-06
RADIOLABELED NANOHYBRIDS TARGETING SOLID TUMOR NEOVASCULATURE AND METHOD OF USING SAME
申请人:University of Maryland, Baltimore
公开号:EP1768706A2
公开(公告)日:2007-04-04
A lysosome-targetable fluorescent probe for the simultaneous sensing of Cys/Hcy and GSH from different emission channels
作者:Hui Zhang、Lizhen Xu、Wenxiu Li、Wenqiang Chen、Qi Xiao、Jun Huang、Chusheng Huang、Jiarong Sheng、Xiangzhi Song
DOI:10.1039/c9ra00210c
日期:——
A novel lysosome targetable fluorescent probe, Lyso-AC, that can selectively sense lysosome Cys/Hcy and GSH from different emission channels was developed.