COMPOSITIONS AND METHODS FOR TUMOR IMAGING AND TARGETING BY A CLASS OF ORGANIC HEPTAMETHINE CYANINE DYES THAT POSSESS DUAL NUCLEAR AND NEAR-INFRARED PROPERTIES
Provided herein is a drug delivery (DD) system for ratiometric luminescence determination of drug release degree in drug delivery monitoring, which includes a drug, a switchable reporter and non-switchable reporter providing two distinguishable signals for detection; or a single switchable reporter providing two distinguishable signals for detection, and a cleavable linker connecting a drug to a switchable reporter, as well as a method for ratiometric luminescence determination of drug release in a target in vivo or in vitro), which is effected by administering the DD system provided herein that is capable of releasing a drug from the DD system, measuring two luminescent signals provided by the switchable reporter and the non-switchable reporter, or the single switchable reporter, determining the ratio between these two luminescence signals, and determining the drug release degree through the ratio between the two luminescence signals.
MEANS AND METHODS FOR VISUALIZATION OF TISSUE STRUCTURES
申请人:GRETZ Norbert
公开号:US20190353565A1
公开(公告)日:2019-11-21
The present invention relates to a chemical compound comprising (i) a polycationic polymer, coupled to (ii) a dye. The present invention further relates to a method for visualizing a glycosamine-containing structure in a biological sample comprising a) contacting an inner lumen of said biological sample with a dye-conjugated polycationic polymer, preferably with the chemical compound according to the present invention; b) tissue-clearing said biological sample; and, thereby, c) visualizing an internal glycosamine-containing structure in said biological sample. The present invention also relates to a method for determining the number and/or size of glomeruli in a kidney or a sample thereof making use of the method for visualizing a glycosamine-containing structure; and also relates to kits and uses related to said chemical compounds and said methods.
Conjugation of Dasatinib with MHI‐148 Has a Significant Advantageous Effect in Viability Assays for Glioblastoma Cells
作者:Syed Muhammad Usama、Zhengyang Jiang、Kathryn Pflug、Raquel Sitcheran、Kevin Burgess
DOI:10.1002/cmdc.201900356
日期:2019.9.4
We hypothesized that conjugation of the near-infrared dye MHI-148 with the anti-leukemia drug dasatinib might produce a potential theranostic for glioblastoma. In fact, the conjugate was found to bind the kinases Src and Lyn, and to inhibit the viability of a glioblastomacell line with significantly greater potency than dasatinib alone, MHI-148 alone, or a mixture of dasatinib and MHI-148 at the same