Chemical constituents with senolytic activity from the stems of Limacia scandens

While screening senotherapeutics from natural products, seven undescribed chemicals (two syringylglycerol derivatives, two cyclopeptides, one tigliane analogue and two chromone derivatives), as well as six known compounds, were isolated from the stems of Limacia scandens. The structures of compounds were elucidated through spectroscopic data analysis, including 1D and 2D NMR, HRESIMS and CD data. All compounds were tested in replicative senescent human dermal fibroblasts (HDFs) to determine their potential as senotherapeutic agents to specifically target senescent cells. One tigliane and two chromone derivatives showed senolytic activity, indicating that senescent cells were selectively removed. Especially, 2-

{2-[(3’-O-β-D-glucopyranosyl)phenyl]ethyl}chromone is expected to be a potential senotherapeutic by inducing HDF death, inhibiting the activity of senescence-associated β-galactosidase (SA-β-gal) and expressing senescence-associated secretory phenotype (SASP) factors.

 

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Publication History

Article published online:
16 November 2023