Proteome Interrogation Using Nanoprobes To Identify Targets of a Cancer-Killing Molecule
摘要:
We report a generic approach for identification of target proteins of therapeutic molecules using nanoprobes. Nanoprobes verify the integrity of nanoparticle-bound ligands in live cells and pull down target proteins from the cellular proteome, providing very important information on drug targets and mechanisms of action. As an example, target proteins as a-tubulin and HSP 90 have been identified and validated.
Design, Synthesis, Cytoselective Toxicity, Structure–Activity Relationships, and Pharmacophore of Thiazolidinone Derivatives Targeting Drug-Resistant Lung Cancer Cells
作者:Hongyu Zhou、Shuhong Wu、Shumei Zhai、Aifeng Liu、Ying Sun、Rongshi Li、Ying Zhang、Sean Ekins、Peter W. Swaan、Bingliang Fang、Bin Zhang、Bing Yan
DOI:10.1021/jm7012024
日期:2008.3.13
identified from 372 thiazolidinone analogues by applying iterative library approaches. These compounds selectively killed both non-small cell lung cancer cell line H460 and its paclitaxel-resistant variant H460 taxR at an IC 50 between 0.21 and 2.93 microM while showing much less toxicity to normal human fibroblasts at concentrations up to 195 microM. Structure-activityrelationship studies revealed that
Series of novel 5-arylidene-2-arylaminothiazol-4(5H)-ones and 2-aryl(benzyl)amino-1H-imidazol-4(5H)ones were synthesized from appropriate 2-alkylthioazol-4-ones using nucleophilic substitution in position 2 by various anilines and benzylamines and Knoevenagel reaction. X-ray structural studies of 22 revealed the structure to be intermediate between amino and imino tautomeric forms. All the target compounds were evaluated for the anticancer activity in vitro in standard National Cancer Institute 60 cancer cell lines assay. Majority of compounds showed significant antitumor cytotoxicity effect at micromolar and submicromolar level (Mean Log GI(50) ranges -5.77 to -4.35). Some of the most potent compounds, namely 10 and 13, possessed selectively high effect on all leukemia cell lines at submicromolar level (Mean Log GI50 [leukemia lines], respectively, -6.41 and -6.29), which are probably associated with immunosuppressive activity. Individual cancer cell lines sensitivity to synthesized compounds and SAR studies are discussed. COMPARE analysis allowed to disclose probable modes of anticancer action for synthesized compounds, in particular showed number of high correlations with activity patterns of alkylating agents (PCC similar to 0.606-0.731). (C) 2010 Elsevier Ltd. All rights reserved.
Lesyk, Roman; Zimenkovsky, Boris; Subtelna, Ivanna, Acta poloniae pharmaceutica, 2003, vol. 60, # 6, p. 457 - 466
[EN] PEPTIDE SEQUENCING METHOD AND REAGENTS THEREFOR
申请人:GARIEPY, Kathleen, Cox
公开号:WO1992000526A1
公开(公告)日:1992-01-09
(EN) A protein sequencing method utilizing a composition of matter comprising a reagent polypeptide complex A-B-C-D wherein A is a polypeptide which contains an N-terminal amino acid unit B, C is an aromatic ring which contains a functional group which can react with and bind to the N-terminal amino acid of the polypeptide and can result in unit derivatization of the terminal amino acid and D comprises those moieties attached to the aromatic ring that contribute to the electrochemical activity of the derivatized N-terminal amino acid and are selected from those functional groups that do not interfere with the reactivity of the functional groups of the C moiety in a derivatization process. In its method form, the identity of an N-terminal amino acid is established through derivatization with said A-B-C-D reagent followed by chromatographic analysis and electrochemical detection.(FR) Procédé de séquençage d'une protéine utilisant une composition de matières comprenant un complexe polypeptide réactif A-B-C-D dans lequel A représente un polypeptide qui contient une unité B d'aminoacide à terminaison N, C représente un noyau aromatique qui contient un groupe fonctionnel pouvant réagir à, et se lier avec, l'acide aminoacide à terminaison N du polypeptide et pouvant provoquer une dérivation de l'unité de l'aminoacide de terminaison et D comprend les fragments fixés au noyau aromatique qui contribuent à l'activité électromagnétique de l'aminoacide de terminaison N dérivé et qui sont choisis dans les groupes fonctionnels qui ne perturbent pas la réactivité des groupes fonctionnels du fragment C dans le procédé de dérivation. Dans ce procédé, l'identité d'un aminoacide à terminaison N est établie au moyen de la dérivation avec ledit réactif A-B-C-D, suivie d'une analyse chromatographique et d'une détection électrochimique.
Proteome Interrogation Using Nanoprobes To Identify Targets of a Cancer-Killing Molecule
作者:Liwen Li、Qiu Zhang、Aifeng Liu、Xiue Li、Hongyu Zhou、Yin Liu、Bing Yan
DOI:10.1021/ja111137n
日期:2011.5.11
We report a generic approach for identification of target proteins of therapeutic molecules using nanoprobes. Nanoprobes verify the integrity of nanoparticle-bound ligands in live cells and pull down target proteins from the cellular proteome, providing very important information on drug targets and mechanisms of action. As an example, target proteins as a-tubulin and HSP 90 have been identified and validated.