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2017 ; 60
(14
): 6191-6204
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Discovery of a Benzamide Derivative That Protects Pancreatic ?-Cells against
Endoplasmic Reticulum Stress
#MMPMID28696115
Duan H
; Li Y
; Arora D
; Xu D
; Lim HY
; Wang W
J Med Chem
2017[Jul]; 60
(14
): 6191-6204
PMID28696115
show ga
Endoplasmic reticulum (ER) stress-mediated pancreatic insulin-producing ?-cell
dysfunction and death are critical elements in the onset and progression of both
type 1 and type 2 diabetes. Here, through cell-based high throughput screening we
identified benzamide derivatives as a novel class of ?-cell protective agents
against ER stress-induced dysfunction and death. Through structure-activity
relationship optimization, a 3-(N-piperidinyl)methylbenzamide derivative 13d
markedly protects ?-cells against ER stress-induced dysfunction and death with
near 100% maximum rescue activity and an EC(50) of 0.032 ?M. Compound 13d
alleviates ER stress in ?-cells by suppressing ER stress-mediated activation of
all three branches of unfolded protein response (UPR) and apoptotic genes.
Finally, we show that 13d significantly lowers blood glucose levels and increases
concomitant ?-cell survival and number in a streptozotocin-induced diabetic mouse
model. Identification of ?-cell-protective small molecules against ER stress
provides a new promising modality for the treatment of diabetes.