Bioinformatics-Guided Mechanistic Insights into Scutellaria Barbata Flavonoids Improving CREB Signaling-Related...

Area of Science:

• Neuroscience
• Pharmacology
• Molecular Biology

Background:

• Cognitive dysfunction is a hallmark of Alzheimer's Disease (AD).
• Dysregulation of the ERK-RSK-CREB signaling pathway is implicated in AD pathogenesis.
• Scutellaria Barbata Flavonoids (SBFs) are investigated for their potential therapeutic effects.

Purpose of the Study:

• To investigate if SBFs ameliorate cognitive impairment in a rat model by targeting the ERK-RSK-CREB pathway.
• To explore the mechanism of SBFs' action on CREB signaling and neuronal integrity.

Main Methods:

• An in vivo memory impairment model was established using the RSK inhibitor BI-D1870.
• Spatial and short-term memory were assessed using the Barnes maze and Passive Avoidance Test.
• Neuronal integrity and ERK-RSK-CREB pathway molecules were evaluated using histological and molecular techniques.

Main Results:

• SBFs significantly improved spatial and short-term memory deficits induced by BI-D1870.
• Cognitive recovery correlated with restored neuronal integrity (Nissl bodies, NeuN).
• SBFs modulated CREB phosphorylation, upregulating p-CREB-Ser133 and downregulating p-CREB-Ser142, alongside effects on RSK, CREB, and EGR-1.

Conclusions:

• SBFs mitigate BI-D1870-induced memory deficits by enhancing the ERK-RSK-CREB pathway, similar to Rolipram.
• SBFs exhibit neuroprotective effects, suggesting potential as a therapeutic agent for memory disorders.
• Further studies are needed in more relevant AD models to validate SBFs' efficacy and mechanisms.