Novel Naphthalimide-Benzoic Acid Conjugates as Potential Apoptosis-Inducing Agents: Design, Synthesis, and Biological Activity
摘要:
A series of novel naphthalimide derivatives with 4‐[4‐(3,3‐diphenylallyl)piperazin‐1‐yl]benzoic acid as side chain were designed and synthesized. Their antitumor activities were evaluated against a variety of cancer cell lines in vitro. Preliminary results showed that most of the derivatives had cytotoxic activity comparable with that of amonafide, with IC50 values of 10−6–10−5m. Interestingly, compound 12e had the unique antitumor activity against MCF‐7 among the cancer cell lines tested. More importantly, flow cytometric analysis indicated that compared with amonafide, the target compounds could effectively induce G2/M arrest and progress to apoptosis in HL‐60 cells after double staining with annexin V–FITC and propidium iodide. The present work provided a novel class of naphthalimide‐based derivatives with potential apoptosis‐inducing and improved antitumor activity for further optimization.
Design, Synthesis, and Computational Studies of Inhibitors of Bcl-XL
摘要:
One of the primary objectives in the design of protein inhibitors is to shape the three-dimensional structures of small molecules to be complementary to the binding site of a target protein. In the course of our efforts to discover potent inhibitors of Bcl-2 family proteins, we found a unique folded conformation adopted by tethered aromatic groups in the ligand that significantly enhanced binding affinity to Bcl-X-L. This finding led us to design compounds that were biased by nonbonding interactions present in a urea tether to adopt this bioactive, folded motif. To characterize the key interactions that induce the desired conformational bias, a series of substituted N,N'-diarylureas were prepared and analyzed using X-ray crystallography and quantum mechanical calculations. Stabilizing pi-stacking interactions and destabilizing steric interactions were predicted to work in concert in two of the substitution patterns to promote the bioactive conformation as a global energy minimum and result in a high target binding affinity. Conversely, intramolecular hydrogen bonding present in the third substitution motif promotes a less active, extended conformer as the energetically favored geometry. These findings were corroborated when the inhibition constant of binding to Bcl-X-L was determined for fully elaborated analogues bearing these structural motifs. Finally, we obtained the NMR solution structure of the disubstituted N,N'-diarylurea bound to Bcl-X-L demonstrating the folded conformation of the urea motif engaged in extensive pi-interactions with the protein.
APOPTOSIS-INDUCING AGENTS FOR THE TREATMENT OF CANCER AND IMMUNE AND AUTOIMMUNE DISEASES
申请人:Kunzer Aaron R.
公开号:US20100184766A1
公开(公告)日:2010-07-22
Disclosed are compounds which inhibit the activity of anti-apoptotic Bcl-2 proteins, compositions containing the compounds and methods of treating diseases during which is expressed anti-apoptotic Bcl-2 protein.
Apoptosis-inducing agents for the treatment of cancer and immune and autoimmune diseases
申请人:Hexamer Laura A.
公开号:US08426422B2
公开(公告)日:2013-04-23
Disclosed are compounds which inhibit the activity of anti-apoptotic Bcl-2 proteins, compositions containing the compounds and methods of treating diseases during which is expressed anti-apoptotic Bcl-2 protein.
APOPTOSIS-INDUCING AGENT FOR THE TREATMENT OF CANCER AND IMMUNE AND AUTOIMMUNE DISEASES
申请人:AbbVie Inc.
公开号:US20160002187A1
公开(公告)日:2016-01-07
Disclosed are compounds which inhibit the activity of anti-apoptotic Bcl-2 proteins, compositions containing the compounds and methods of treating diseases during which is expressed anti-apoptotic Bcl-2 protein.
Novel naphthalimide derivatives as potential apoptosis-inducing agents: Design, synthesis and biological evaluation
作者:Aibin Wu、Yufang Xu、Xuhong Qian、Jin Wang、Jianwen Liu
DOI:10.1016/j.ejmech.2009.07.011
日期:2009.11
A series of novel naphthalimide derivatives with flexible alkyl/aryl moieties were designed and synthesized. Their antitumor activities were evaluated against HeLa, A549, P388, HL-60, MCF-7, HCT-8 and A375 cancer cell lines in vitro. The preliminary results showed that most of the derivatives had comparable antitumor activities over Amonafide with the IC50 values of 10(-6) to 10(-5) M. More importantly, flow cytometric analysis indicated that the derivatives could effectively induce G(2)/M arrest and progress to apoptosis in HL-60 cell line after double staining with annexin V-FITC and propidium iodide. The present work provided a novel class of naphthalimide-based derivatives with potent apoptosis-inducing and antitumor activities for further optimization. (C) 2009 Elsevier Masson SAS. All rights reserved.