Discovery of novel phosphodiesterase-1 inhibitors for curing vascular dementia: Suppression of neuroinflammation by blocking NF-κB transcription regulation and activating cAMP/CREB axis

• Main Authors: Qian Zhou (Author), Meiling Le (Author), Yiyi Yang (Author), Wenjuan Wang (Author), Yuqi Huang (Author), Quan Wang (Author), Yijing Tian (Author), Meiyan Jiang (Author), Yong Rao (Author), Hai-Bin Luo (Author), Yinuo Wu (Author)
• Format: Book
• Published: Elsevier, 2023-03-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

Vascular dementia (VaD) is the second commonest type of dementia which lacks of efficient treatments currently. Neuroinflammation as a prominent pathological feature of VaD, is highly involved in the development of VaD. In order to verify the therapeutic potential of PDE1 inhibitors against VaD, the anti-neuroinflammation, memory and cognitive improvement were evaluated in vitro and in vivo by a potent and selective PDE1 inhibitor 4a. Also, the mechanism of 4a in ameliorating neuroinflammation and VaD was systematically explored. Furthermore, to optimize the drug-like properties of 4a, especially for metabolic stability, 15 derivatives were designed and synthesized. As a result, candidate 5f, with a potent IC50 value of 4.5 nmol/L against PDE1C, high selectivity over PDEs, and remarkable metabolic stability, efficiently ameliorated neuron degeneration, cognition and memory impairment in VaD mice model by suppressing NF-κB transcription regulation and activating cAMP/CREB axis. These results further identified PDE1 inhibition could serve as a new therapeutic strategy for treatment of VaD.

Item Description

2211-3835
10.1016/j.apsb.2022.09.023