Discovery of 2-(Methylcarbonylamino) thiazole as PDE4 inhibitors via virtual screening and biological evaluation

  • Impact factors: 7
  • Publication: Journal of Animal Science and Biotechnology
  • Author:Ma Xinhao, Yang Xinran, Zhang Dianqi, Zhang Wenzhen, Wang Xiaoyu, Xie Kuncheng, He Jie, Mei Chugang, Zan Linsen
  • DOI citation-doi:10.1186/s40104-022-00820-1
  • Date:2023-02-03T00:00:00.000Z

Phosphodiesterase-4, the primary enzyme responsible for cAMP degradation in the majority of immune and inflammatory cells, plays a critical role in the regulation of intracellular cAMP levels. Consequently, small molecular entities capable of inhibiting PDE4 have been employed in the treatment of inflammation-associated disorders, such as chronic obstructive pulmonary disease (COPD), psoriasis , atopic dermatitis (AD), inflammatory bowel diseases (IBD), rheumatic arthritis (RA). In the present investigation, a multi-faceted approach was employed to identify novel PDE4 inhibitors, utilizing the co-crystallization structure of PDE4B available in the Protein Data Bank (PDB) database, drug-like screening, false positive filtration, similarity and ADMET screen, as well as molecular docking via multiple software platforms, in conjunction with bioactivity assays. A thiazol-3-propanamides derivative, designated MR9, was discovered to inhibit PDE4B activity with IC 50 values of 2.12 μM and suppress cellular inflammatory factor TNF-α release with an EC 50 value of 3.587 μM. These findings suggest that the innovative active scaffold of MR9 offers a promising foundation for further structural refinement aimed at developing more potent PDE4 inhibitors.

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