Discovery of Sulfonamidebenzamides as Selective Apoptotic CHOP Pathway Activators of the Unfolded Protein Response
摘要:
Cellular proteins that fail to fold properly result in inactive or disfunctional proteins that can have toxic functions. The unfolded protein response (UPR) is a two-tiered cellular mechanism initiated by eukaryotic cells that have accumulated misfolded proteins within the endoplasmic reticulum (ER). An adaptive pathway facilitates the clearance of the undesired proteins; however, if overwhelmed, cells trigger apoptosis by upregulating transcription factors such as C/EBP-homologous protein (CHOP). A high throughput screen was performed directed at identifying compounds that selectively upregulate the apoptotic CHOP pathway while avoiding adaptive signaling cascades, resulting in a sulfonamidebenzamide chemotype that was optimized. These efforts produced a potent and selective CHOP inducer (AC(50) = 0.8 mu M; XBP1 > 80 mu M), which was efficacious in both mouse embryonic fibroblast cells and a human oral squamous cell cancer cell line, and demonstrated antiproliferative effects for multiple cancer cell lines in the NCI-60 panel.
COMPOUNDS AND METHODS FOR ACTIVATING THE APOPTOTIC ARM OF THE UNFOLDED PROTEIN RESPONSE
申请人:University of Kansas
公开号:US20150203477A1
公开(公告)日:2015-07-23
N-substituted sulfonylphenyl-5-nitrofuranyl-2-carboxamide derived compounds, which selectively activate the apoptotic, but not the adaptive arm, of the Unfolded Protein Response are provides as is their use in the treatment of diseases such as diabetes, Alzheimer's, Parkinson's, hemophilia, lysosomal storage diseases and cancer.
Compounds and methods for activating the apoptotic arm of the unfolded protein response
申请人:University of Kansas
公开号:US10787439B2
公开(公告)日:2020-09-29
N-substituted sulfonylphenyl-5-nitrofuranyl-2-carboxamide derived compounds, which selectively activate the apoptotic, but not the adaptive arm, of the Unfolded Protein Response are provides as is their use in the treatment of diseases such as diabetes, Alzheimer's, Parkinson's, hemophilia, lysosomal storage diseases and cancer.
Discovery of Sulfonamidebenzamides as Selective Apoptotic CHOP Pathway Activators of the Unfolded Protein Response
作者:Daniel P. Flaherty、Justin R. Miller、Danielle M. Garshott、Michael Hedrick、Palak Gosalia、Yujie Li、Monika Milewski、Eliot Sugarman、Stefan Vasile、Sumeet Salaniwal、Ying Su、Layton H. Smith、Thomas D. Y. Chung、Anthony B. Pinkerton、Jeffrey Aubé、Michael U. Callaghan、Jennifer E. Golden、Andrew M. Fribley、Randal J. Kaufman
DOI:10.1021/ml5003234
日期:2014.12.11
Cellular proteins that fail to fold properly result in inactive or disfunctional proteins that can have toxic functions. The unfolded protein response (UPR) is a two-tiered cellular mechanism initiated by eukaryotic cells that have accumulated misfolded proteins within the endoplasmic reticulum (ER). An adaptive pathway facilitates the clearance of the undesired proteins; however, if overwhelmed, cells trigger apoptosis by upregulating transcription factors such as C/EBP-homologous protein (CHOP). A high throughput screen was performed directed at identifying compounds that selectively upregulate the apoptotic CHOP pathway while avoiding adaptive signaling cascades, resulting in a sulfonamidebenzamide chemotype that was optimized. These efforts produced a potent and selective CHOP inducer (AC(50) = 0.8 mu M; XBP1 > 80 mu M), which was efficacious in both mouse embryonic fibroblast cells and a human oral squamous cell cancer cell line, and demonstrated antiproliferative effects for multiple cancer cell lines in the NCI-60 panel.