HM-chromanone could be useful for the protection of pancreatic β-cells against oxidative stress and apoptosis induced by high glucose.

PMID: 

Nutrients. 2019 Feb 14 ;11(2). Epub 2019 Feb 14. PMID: 30769910

Abstract Title: 

HM-Chromanone Isolated fromL. Protects INS-1 Pancreaticβ Cells against Glucotoxicity-Induced Apoptosis.

Abstract: 

In this study, we investigated whether ()-5-hydroxy-7-methoxy-3-(2'-hydroxybenzyl)-4-chromanone, a homoisoflavonoid compound isolated fromL., protects INS-1 pancreaticβ cells against glucotoxicity-induced apoptosis. Treatment with high glucose (30 mM) induced apoptosis in INS-1 pancreatic β cells; however, the level of cell viability was significantly increased by treatment with ()-5-hydroxy-7-methoxy-3-(2'-hydroxybenzyl)-4-chromanone. Treatment with 10⁻20 µM of ()-5-hydroxy-7-methoxy-3-(2'-hydroxybenzyl)-4-chromanone dose-dependently increased cell viability and significantly decreased the intracellular level of reactive oxygen species (ROS), thiobarbituric acid reactive substances (TBARS), and nitric oxide levels in INS-1 pancreaticβ cells pretreated with high glucose. These effects were associated with increased anti-apoptotic Bcl-2 protein expression, while reducing pro-apoptotic Bax, cytochrome C, and caspase 9 protein expression. Treatment with ()-5-hydroxy-7-methoxy-3-(2'-hydroxybenzyl)-4-chromanone reduced the apoptosis previously induced by high-level glucose-treatment, according to annexin V/propidium iodide staining. These results demonstrate that ()-5-hydroxy-7-methoxy-3-(2'-hydroxybenzyl)-4-chromanone may be useful as a potential therapeutic agent to protect INS-1 pancreaticβ cells against high glucose-induced apoptosis.

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