26455-31-2Relevant articles and documents
Crystallography-guided discovery of carbazole-based retinoic acid-related orphan receptor gamma-t (RORγt) modulators: insights into different protein behaviors with “short” and “long” inverse agonists
Yu, Ming-cheng,Yang, Feng,Ding, Xiao-yu,Sun, Nan-nan,Jiang, Zheng-yuan,Huang, Ya-fei,Yan, Yu-rong,Zhu, Chen,Xie, Qiong,Chen, Zhi-feng,Guo, Si-qi,Jiang, Hua-liang,Chen, Kai-xian,Luo, Cheng,Luo, Xiao-min,Chen, Shi-jie,Wang, Yong-hui
, p. 1524 - 1534 (2020/12/01)
A series of 6-substituted carbazole-based retinoic acid-related orphan receptor gamma-t (RORγt) modulators were discovered through 6-position modification guided by insights from the crystallographic profiles of the “short” inverse agonist 6. With the increase in the size of the 6-position substituents, the “short” inverse agonist 6 first reversed its function to agonists and then to “long” inverse agonists. The cocrystal structures of RORγt complexed with the representative “short” inverse agonist 6 (PDB: 6LOB), the agonist 7d (PDB: 6LOA) and the “long” inverse agonist 7h (PDB: 6LO9) were revealed by X-ray analysis. However, minor differences were found in the binding modes of “short” inverse agonist 6 and “long” inverse agonist 7h. To further reveal the molecular mechanisms of different RORγt inverse agonists, we performed molecular dynamics simulations and found that “short” or “long” inverse agonists led to different behaviors of helixes H11, H11’, and H12 of RORγt. The “short” inverse agonist 6 destabilizes H11’ and dislocates H12, while the “long” inverse agonist 7h separates H11 and unwinds H12. The results indicate that the two types of inverse agonists may behave differently in downstream signaling, which may help identify novel inverse agonists with different regulatory mechanisms.
Rationally Designed Polypharmacology: α-Helix Mimetics as Dual Inhibitors of the Oncoproteins Mcl-1 and HDM2
Conlon, Ivie L.,Drennen, Brandon,Lanning, Maryanna E.,Hughes, Samuel,Rothhaas, Rebecca,Wilder, Paul T.,MacKerell, Alexander D.,Fletcher, Steven
, p. 1691 - 1698 (2020/07/04)
Protein–protein interactions (PPIs), many of which are dominated by α-helical recognition domains, play key roles in many essential cellular processes, and the dysregulation of these interactions can cause detrimental effects. For instance, aberrant PPIs involving the Bcl-2 protein family can lead to several diseases including cancer, neurodegenerative diseases, and diabetes. Interactions between Bcl-2 pro-life proteins, such as Mcl-1, and pro-death proteins, such as Bim, regulate the intrinsic pathway of apoptosis. p53, a tumor-suppressor protein, also has a pivotal role in apoptosis and is negatively regulated by its E3 ubiquitin ligase HDM2. Both Mcl-1 and HDM2 are upregulated in numerous cancers, and, interestingly, there is crosstalk between both protein pathways. Recently, synergy has been observed between Mcl-1 and HDM2 inhibitors. Towards the development of new anticancer drugs, we herein describe a polypharmacology approach for the dual inhibition of Mcl-1 and HDM2 by employing three densely functionalized isoxazoles, pyrazoles, and thiazoles as mimetics of key α-helical domains of their partner proteins.
INHIBITORS OF BRUTON'S TYROSINE KINASE
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Page/Page column 48; 50; 53; 72, (2015/06/25)
This application discloses compounds according to generic Formula (I): wherein all variables are defined as described herein, which inhibit Btk. The compounds disclosed herein are useful to modulate the activity of Btk and treat diseases associated with excessive Btk activity. The compounds are useful for the treatment of oncological, auto-immune, and inflammatory diseases caused by aberrant B-cell activation. Also disclosed are compositions containing compounds of Formula I and at least one carrier, diluent or excipient.
