MED1/BDNF/TrkB pathway is involved in thalamic hemorrhage-induced pain and depression by regulating microglia

Copyright © 2022. Published by Elsevier Inc..

Central post-stroke pain (CPSP) and associated depression remain poorly understood and pharmacological treatments are unsatisfactory. Recently, microglia activation was suggested to be involved in CPSP pathophysiology. The goal of this study was to investigate the effectiveness of a co-ultramicronized combination of N-palmitoylethanolamide and luteolin (PEALut) in a mouse model of thalamic hemorrhage (TH)-induced CPSP. TH was established through the collagenase-IV injection in thalamic ventral-posterolateral-nucleus. PEALut effects in CPSP-associated behaviors were evaluated during a 28-days observation period. We found that repeated administrations of co-ultra PEALut significantly reduced mechanical hypersensitivity after TH, as compared to vehicle, by reducing the early microglial activation in the perilesional site. Moreover, PEALut prevented the development of depressive-like behavior (21 days post-TH). These effects were associated with the restoration of synaptic plasticity in LEC-DG pathway and monoamines levels found impaired in TH mice. Hippocampal MED1 and TrkB expressions were significantly increased in TH compared to sham mice 21 days post-TH, whereas BDNF levels were decreased. PEALut restored MED1/TrkB/BDNF expression in mice. Remarkably, we found significant overexpression of MED1 in the human autoptic brain specimens after stroke, indicating a translational potential of our findings. These results pave the way for better-investigating depression in TH- induced CPSP, together with the involvement of MED1/TrkB/BDNF pathway, proposing PEALut as an adjuvant treatment.

Medienart:

E-Artikel

Erscheinungsjahr:

2022

Erschienen:

2022

Enthalten in:

Zur Gesamtaufnahme - volume:164

Enthalten in:

Neurobiology of disease - 164(2022) vom: 08. März, Seite 105611

Sprache:

Englisch

Beteiligte Personen:

Infantino, Rosmara [VerfasserIn]
Schiano, Concetta [VerfasserIn]
Luongo, Livio [VerfasserIn]
Paino, Salvatore [VerfasserIn]
Mansueto, Gelsomina [VerfasserIn]
Boccella, Serena [VerfasserIn]
Guida, Francesca [VerfasserIn]
Ricciardi, Flavia [VerfasserIn]
Iannotta, Monica [VerfasserIn]
Belardo, Carmela [VerfasserIn]
Marabese, Ida [VerfasserIn]
Pieretti, Gorizio [VerfasserIn]
Serra, Nicola [VerfasserIn]
Napoli, Claudio [VerfasserIn]
Maione, Sabatino [VerfasserIn]

Links:

Volltext

Themen:

Brain-Derived Neurotrophic Factor
Central post-stroke pain
Depression
EC 2.7.10.1
Journal Article
MED1/BDNF/TrKB pathway
Med1 protein, mouse
Mediator Complex Subunit 1
Microglia
Ntrk2 protein, mouse
Receptor, trkB
Research Support, Non-U.S. Gov't

Anmerkungen:

Date Completed 29.03.2022

Date Revised 26.02.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.nbd.2022.105611

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM335310516