Apolipoprotein E Mimetic Peptide Increases Cerebral Glucose Uptake by Reducing Blood-Brain Barrier Disruption after Controlled Cortical Impact in Mice: An 18F-Fluorodeoxyglucose PET/CT Study

J Neurotrauma. 2017 Feb 15;34(4):943-951. doi: 10.1089/neu.2016.4485. Epub 2016 Sep 27.

Abstract

Traumatic brain injury (TBI) disrupts the blood-brain barrier (BBB) and reduces cerebral glucose uptake. Vascular endothelial growth factor (VEGF) is believed to play a key role in TBI, and COG1410 has demonstrated neuroprotective activity in several models of TBI. However, the effects of COG1410 on VEGF and glucose metabolism following TBI are unknown. The current study aimed to investigate the expression of VEGF and glucose metabolism effects in C57BL/6J male mice subjected to experimental TBI. The results showed that controlled cortical impact (CCI)-induced vestibulomotor deficits were accompanied by increases in brain edema and the expression of VEGF, with a decrease in cerebral glucose uptake. COG1410 treatment significantly improved vestibulomotor deficits and glucose uptake and produced decreases in VEGF in the pericontusion and ipsilateral hemisphere of injury, as well as in brain edema and neuronal degeneration compared with the control group. These data support that COG1410 may have potential as an effective drug therapy for TBI.

Keywords: COG1410; TBI; VEGF; brain edema; metabolism.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Apolipoproteins E / administration & dosage
  • Apolipoproteins E / pharmacology*
  • Blood-Brain Barrier / drug effects*
  • Brain Edema / drug therapy*
  • Brain Edema / metabolism
  • Brain Edema / physiopathology
  • Brain Injuries, Traumatic / drug therapy*
  • Brain Injuries, Traumatic / metabolism
  • Brain Injuries, Traumatic / physiopathology
  • Disease Models, Animal
  • Fluorodeoxyglucose F18
  • Glucose / metabolism*
  • Male
  • Mice
  • Mice, Inbred C57BL
  • Neuroprotective Agents / administration & dosage
  • Neuroprotective Agents / pharmacology*
  • Positron Emission Tomography Computed Tomography
  • Vascular Endothelial Growth Factor A / metabolism*

Substances

  • Apolipoproteins E
  • COG1410
  • Neuroprotective Agents
  • Vascular Endothelial Growth Factor A
  • vascular endothelial growth factor A, mouse
  • Fluorodeoxyglucose F18
  • Glucose