Neuroprotective Effects of BHDPC, a Novel Neuroprotectant, on Experimental Stroke by Modulating Microglia

Chuwen Li1,2, Yaqi Bian2, Yu Feng2

  • 1Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences , Guangzhou Medical University , Guangzhou 510182 , China.

Insights

BHDPC offers significant neuroprotection in stroke models by reducing brain damage and neuronal loss. It modulates microglial polarization and impacts NF-κB and PKA/CREB signaling pathways for therapeutic benefits.

Area of Science:

  • Neuroscience
  • Pharmacology
  • Cell Biology

Background:

  • Ischemic stroke remains a leading cause of death and disability worldwide.
  • Understanding the mechanisms of neuroprotection is crucial for developing effective therapies.
  • Microglial activation and polarization play a significant role in ischemic stroke pathology.

Purpose of the Study:

  • To investigate the therapeutic effects of BHDPC on ischemic stroke.
  • To elucidate the underlying mechanisms of BHDPC's neuroprotective actions.
  • To explore BHDPC's impact on microglial activation and polarization.

Main Methods:

  • In vivo transient middle cerebral artery occlusion (MCAO) model in mice.
  • In vitro oxygen-glucose deprivation/reperfusion (OGD/R) models using BV-2 microglia, primary neurons, and bEnd.3 endothelial cells.
  • Analysis of neurological deficits, brain infarcts, neuronal apoptosis, blood-brain barrier integrity, microglial polarization, NF-κB, PKA, and CREB signaling.

Main Results:

  • BHDPC significantly alleviated neurological deficits, brain infarcts, and neuronal loss in MCAO mice.
  • BHDPC inhibited M1 microglial activation and promoted M2 polarization in both in vivo and in vitro models.
  • BHDPC's effects were linked to the inactivation of NF-κB and activation of PKA/CREB signaling pathways.

Conclusions:

  • BHDPC demonstrates potent neuroprotective effects against ischemic stroke.
  • Modulation of microglial activation and polarization is a key mechanism underlying BHDPC's efficacy.
  • The neuroprotective actions of BHDPC are mediated, in part, by the NF-κB and PKA/CREB signaling pathways.

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