[EN] COMPOUNDS THAT INDUCE FERROPTIC CELL DEATH<br/>[FR] COMPOSÉS INDUISANT LA MORT CELLULAIRE FERROPTOTIQUE
申请人:UNIV ILLINOIS
公开号:WO2020210158A1
公开(公告)日:2020-10-15
The diterpene natural product pleuromutilin was subjected to reaction sequences focused on creating ring system diversity in few synthetic steps. This effort resulted in a collection of compounds with previously unreported ring systems, providing a novel set of structurally diverse and highly complex compounds suitable for screening in a variety of different settings. Biological evaluation identified the novel compound ferroptocide, a small molecule that rapidly and robustly induces ferroptotic death of cancer cells. Target identification efforts and CRISPR knockout studies reveal that ferroptocide is an inhibitor of thioredoxin, a key component of the antioxidant system in the cell. Ferroptocide positively modulates the immune system in a murine model of breast cancer and will be a useful tool to study the utility of pro-ferroptotic agents for treatment of cancer.
Synthesis of Gb
<sub>3</sub>
Glycosphingolipids with Labeled Head Groups: Distribution in Phase‐Separated Giant Unilamellar Vesicles
作者:Jeremias Sibold、Katharina Kettelhoit、Loan Vuong、Fangyuan Liu、Daniel B. Werz、Claudia Steinem
DOI:10.1002/anie.201910148
日期:2019.12.2
sphingosine backbone. The synthetic Gb3 glycosphingolipids were reconstituted into coexisting liquid-ordered (lo )/liquid-disordered (ld ) giantunilamellarvesicles (GUVs), and STx binding was verified by fluorescence microscopy. Gb3 with the C24:0 fatty acid partitioned mostly in the lo phase, while the unsaturated C24:1 fatty acid distributes more into the ld phase. The α-hydroxylation does not influence
Multivalent Siderophore-DOTAM Conjugates as Theranostics for Imaging and Treatment of Bacterial Infections
作者:Kevin Ferreira、Hai-Yu Hu、Verena Fetz、Hans Prochnow、Bushra Rais、Peter P. Müller、Mark Brönstrup
DOI:10.1002/anie.201701358
日期:2017.7.3
diagnose infections at deep body sites through noninvasive molecular imaging methods. Herein, we describe the synthesis and characterization of probes based on siderophore conjugates with catechol moieties and a central DOTAM scaffold. The probes can accommodate a metal ion as well as an antibiotic moiety and are therefore suited for theranostic purposes. The translocation of the conjugates across the
Moenomycin A (MoeA)-based fluorescent probes were developed for imaging the bacterialcellwall through specific labeling of transglycosylases. The strategy provided stunning imaging probes for mecA-carrying methicillin-resistant Staphylococcus aureus (MRSA) strains.
开发了基于Moenomycin A (MoeA)的荧光探针,用于通过转糖基酶的特异性标记对细菌细胞壁进行成像。该策略为携带mecA的耐甲氧西林金黄色葡萄球菌(MRSA) 菌株提供了惊人的成像探针。
Fluorescent dATP for DNA Synthesis <i>In Vivo</i>
作者:Verena N. Schreier、Morten O. Loehr、Ting Deng、Evelyn Lattmann、Alex Hajnal、Stephan C.F. Neuhauss、Nathan W. Luedtke
DOI:10.1021/acschembio.0c00654
日期:2020.11.20
Fluorescent nucleoside triphosphates are powerful probes of DNA synthesis, but their potential use in living animals has been previously underexplored. Here, we report the synthesis and characterization of 7-deaza-(1,2,3-triazole)-2′-deoxyadenosine-5′-triphosphate (dATP) derivatives of tetramethyl rhodamine (“TAMRA-dATP”), cyanine (“Cy3-dATP”), and boron-dipyrromethene (“BODIPY-dATP”). Upon microinjection