Antiproliferative activities and SAR studies of substituted anthraquinones and 1,4-naphthoquinones
摘要:
STAT3 is constitutively active in a large variety of cancers. The search for STAT3 inhibitors led to the discoveries of LLLs 3 and 12, which are substituted anthraquinones. LLL12 is an extremely potent compound that exhibits high levels of antiproliferative activity. Herein the synthesis and evaluation of compounds containing either an anthraquinone or 1,4-naphthoquinone moiety are reported. Analogs were evaluated in several cancer cell lines. Interestingly, it was found that the anthraquinones did not follow the same trends as the 1,4-naphthoquinones in regards to potency. LLL12, which contains a sulfonamide at position 1, was found to be the most potent of the anthraquinones. In contrast, the methyl ketone and methyl ester derivatives (LLLs 3.1 and 5.1) were found to be the most potent of the 1, 4-naphthoquinones. Selected 1,4-naphthoquinones were also evaluated in the STAT3 fluorescence polarization assay in order to evaluate their abilities to bind to the STAT3 SH2 domain. They were found to have similar affinities, and their activities suggest that STAT3 is one of their molecular targets. (C) 2013 Elsevier Ltd. All rights reserved.
Naphto- and anthraquinones of Streptomyces thermoviolaceusWR-141. Structures and model syntheses
作者:J.St. Pyrek、O. Achmatowicz、A. Zamojski
DOI:10.1016/0040-4020(77)80309-8
日期:1977.1
In addition to previously identified antibiotic granaticin 1 Streptomyces thermoviotaceus WR-141 was shown to produce dihydrogranaticin 2, and anthraquinone pigments 5, and 6. Model synthesis of the chromophore and dihydropyran part of these antibiotic pigments are described.
Design, synthesis, and studies of small molecule STAT3 inhibitors
作者:Deepak Bhasin、Katryna Cisek、Trupti Pandharkar、Nicholas Regan、Chenglong Li、Bulbul Pandit、Jiayuh Lin、Pui-Kai Li
DOI:10.1016/j.bmcl.2007.10.031
日期:2008.1
A series of small molecule STAT3 inhibitors originally derived from our lead compound STA 21 were synthesized and evaluated. The most potent compound in this series, compound 1, exhibited the same anti-proliferative activities as STA 21 against prostate cancer cell lines that express constitutively active STAT3. Molecular docking showed compound 1 bound to the STAT3 beta SH2 domain in a similar manner as STA 21. (C) 2007 Elsevier Ltd. All rights reserved.
MICROEMULSION TOPICAL DELIVERY PLATFORM
申请人:Eyecro, LLC
公开号:EP2968139B1
公开(公告)日:2018-05-23
STAT3 INHIBITING COMPOSITIONS AND METHODS
申请人:Farjo Rafal A.
公开号:US20110077306A1
公开(公告)日:2011-03-31
STA-21-related compounds, for example CLT-005, are shown to prevent dimerization of STAT3, thereby inhibiting STAT3 activity. Inhibition of STAT3 activity is shown to reduce intraocular inflammation and neovascularization, symptoms of eye-related diseases such as age-related macular degeneration. Inhibition of STAT3 prevents STAT3 from transcriptionally activating downstream gene targets that are known to be associated with retinal inflammation and neovascularization and such disorders as age-related macular degeneration.
1-ACETYL-5-HYDROXYANTHRACENE-9,10-DIONE FOR TREATMENT OF RETINAL DISEASE
申请人:Farjo Rafal A.
公开号:US20120059067A1
公开(公告)日:2012-03-08
A composition may include a pharmaceutical carrier and an amount, therapeutically effective for the treatment of a retinal disease, of CLT-005 (1-acetyl-5-hydroxyanthracene-9,10-dione), wherein the retinal disease is characterized by at least one of inflammation, angiogenesis, or neovascularization, and wherein the composition is prepared for administration topically. The composition may be administered topically to a subject's eye.