406233-13-4Relevant academic research and scientific papers
Design, synthesis, and activity evaluation of selective inhibitors of anti-apoptotic Bcl-2 proteins: The effects on the selectivity of the P1 pockets in the active sites
Wang, Mingping,Tian, Wei,Wang, Chongqing,Lu, Shihai,Yang, Chao,Wang, Juan,Song, Yunlong,Zhou, Youjun,Zhu, Ju,Li, Zhiyu,Zheng, Canhui
, p. 5207 - 5211 (2016)
The anti-apoptotic Bcl-2 proteins are attractive targets for anti-cancer drug development, and the discovery of their selective inhibitors has become a research focus. In this Letter, obvious differences in the P1 pocket of the active site between Bcl-2, Bcl-xL, and Mcl-1 proteins were proposed by the structural comparison of these proteins. As a result, the groups in their inhibitors binding to the P1 pockets may have significant effect on the selectivity for these proteins. Based on this hypothesis, five types of derivatives of the lead compound B-1 were designed, and several highly selective inhibitors of Bcl-xL(E-1) or Mcl-1 proteins (G) were found. The selective inhibitors of Mcl-1 protein found in this Letter provide new structural types for the development of novel antitumor agents.
Design, synthesis, and activity evaluation of broad-spectrum small-molecule inhibitors of anti-apoptotic Bcl-2 family proteins: Characteristics of broad-spectrum protein binding and its effects on anti-tumor activity
Zheng, Can-Hui,Yang, Hui,Zhang, Meng,Lu, Shi-Hai,Shi, Duo,Wang, Juan,Chen, Xiu-Hua,Ren, Xiao-Hui,Liu, Jia,Lv, Jia-Guo,Zhu, Ju,Zhou, You-Jun
, p. 39 - 44 (2012/02/16)
On the basis of the comparison of the structure of the Bim BH3: Bcl-x L complex and that of the ABT-737: Bcl-xL complex, a series of class A compounds were designed. These compounds had the basic skeleton of ABT-737 and the h2 residues of Bim BH3. These residues had shown themselves to be relevant to Bim BH3's broad-spectrum binding properties in saturation mutagenesis assays. Unlike ABT-737, which is a selective inhibitor of anti-apoptotic members of the Bcl-2 protein family, the class A compounds showed broad-spectrum binding activity to target proteins similar to those of Bim BH3 peptide. Then class B compounds were synthesized by modifying the structure of the most effective class A compound, A-4. Most of these class B compounds showed better binding affinity to the target proteins than the class A compounds had. They also showed themselves more effective than ABT-737 at inhibiting growth in multiple tumor cell lines known to express Bcl-x L, Bcl-2, and Mcl-1 proteins at high levels. Compounds B-11 and B-12 had the strongest anti-tumor activity of any compounds we produced. This study suggests that it is feasible to design small-molecule inhibitors based on the structure of Bim BH3, which shows broad-spectrum binding to Bcl-xL, Bcl-2, and Mcl-1 proteins. Our results also suggest that the broad-spectrum properties of small-molecule inhibitors binding to target proteins play a critical role in inhibiting the growth of many tumor cells. Finally, our study provides a series of lead compounds that merit further research into anti-cancer therapeutics.
ARYLSULFONAMIDE COMPOUNDS, COMPOSITIONS AND METHODS OF USE
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, (2009/12/27)
Disclosed are compounds which inhibit the activity of anti-apoptotic protein family members, compositions containing the compounds and uses of the compounds for preparing medicaments for treating diseases during which occurs expression one or more than one of an anti apoptotic protein family member.
Discovery and structure-activity relationship of antagonists of B-cell lymphoma 2 family proteins with chemopotentiation activity in vitro and in vivo
Wendt, Michael D.,Shen, Wang,Kunzer, Aaron,McClellan, William J.,Bruncko, Milan,Oost, Thorsten K.,Ding, Hong,Joseph, Mary K.,Zhang, Haichao,Nimmer, Paul M.,Ng, Shi-Chung,Shoemaker, Alexander R.,Petros, Andrew M.,Oleksijew, Anatol,Marsh, Kennan,Bauch, Joy,Oltersdorf, Tilman,Belli, Barbara A.,Martineau, Darlene,Fesik, Stephen W.,Rosenberg, Saul H.,Elmore, Steven W.
, p. 1165 - 1181 (2007/10/03)
Development of a rationally designed potentiator of cancer chemotherapy, via inhibition of Bcl-XL function, is described. Lead compounds generated by NMR screening and directed parallel synthesis displayed sub-μM binding but were strongly deactivated in the presence of serum. The dominant component of serum deactivation was identified as domain III of human serum albumin (HSA); NMR solution structures of inhibitors bound to both Bcl-X L and HSA domain III indicated two potential optimization sites for separation of affinities. Modifications at both sites resulted in compounds with improved Bcl-XL binding and greatly increased activity in the presence of human serum, culminating in 73R, which bound to Bcl-XL with a Ki of 0.8 μM. In a cellular assay 73R reversed the protection afforded by Bcl-XL overexpression against cytokine deprivation in FL5.12 cells with an EC50 of 0.47 μM. 73R showed little effect on the viability of the human non small cell lung cancer cell line A549. However, consistent with the proposed mechanism, 73R potentiated the activity of paclitaxel and UV irradiation in vitro and potentiated the antitumor efficacy of paclitaxel in a mouse xenograft model.
