27883-60-9Relevant articles and documents
VISUAL DETECTION OF PBD INDUCED DNA CROSSLINKS
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, (2021/04/23)
The present invention relates to the field of oncology, laboratory tools and methods, and especially anti-tumor DNA crosslinking agents. Most patients with advanced solid tumors develop resistance to chemotherapy due to the ability of cancer cells to repair or tolerate sustained DNA damages. The inventors showed that the compounds according to the present invention allow the detection and visualization of alkylated DNA damages induced by PBDs without altering their DNA crosslinking ability. This enables the study of the effect and properties of PBDs. In particular, the present invention relates new derivates of PBD molecules and their synthesis. The present invention also relates to a method for visualizing DNA crosslinking; to a method for assessing the resistance of a tumor to a crosslinking agent and to a method for identifying a molecule or treatment for improving the efficiency of a crosslinking agent.
FUSED HETEROCYCLIC BENZODIAZEPINE DERIVATIVES AND USES THEREOF
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, (2020/05/29)
The present disclosure provides compounds and compositions capable of extending lifespan, and methods of use thereof.
Discovery of Reversible DNA Methyltransferase and Lysine Methyltransferase G9a Inhibitors with Antitumoral in Vivo Efficacy
Rabal, Obdulia,José-Enériz, Edurne San,Agirre, Xabier,Sánchez-Arias, Juan Antonio,Vilas-Zornoza, Amaia,Ugarte, Ana,De Miguel, Irene,Miranda, Estíbaliz,Garate, Leire,Fraga, Mario,Santamarina, Pablo,Perez, Raul Fernandez,Ordo?ez, Raquel,Sáez, Elena,Roa, Sergio,García-Barchino, María José,Martínez-Climent, José Angel,Liu, Yingying,Wu, Wei,Xu, Musheng,Prosper, Felipe,Oyarzabal, Julen
, p. 6518 - 6545 (2018/07/09)
Using knowledge- and structure-based approaches, we designed and synthesized reversible chemical probes that simultaneously inhibit the activity of two epigenetic targets, histone 3 lysine 9 methyltransferase (G9a) and DNA methyltransferases (DNMT), at nanomolar ranges. Enzymatic competition assays confirmed our design strategy: substrate competitive inhibitors. Next, an initial exploration around our hit 11 was pursued to identify an adequate tool compound for in vivo testing. In vitro treatment of different hematological neoplasia cell lines led to the identification of molecules with clear antiproliferative efficacies (GI50 values in the nanomolar range). On the basis of epigenetic functional cellular responses (levels of lysine 9 methylation and 5-methylcytosine), an acceptable therapeutic window (around 1 log unit) and a suitable pharmacokinetic profile, 12 was selected for in vivo proof-of-concept (Nat. Commun. 2017, 8, 15424). Herein, 12 achieved a significant in vivo efficacy: 70% overall tumor growth inhibition of a human acute myeloid leukemia (AML) xenograft in a mouse model.