Transplantation of inhibitory precursor cells from medial ganglionic eminence produces distinct responses in two different models of acute seizure induction.
Epilepsy Behav
; 70(Pt A): 125-130, 2017 05.
Article
in En
| MEDLINE
| ID: mdl-28427019
ABSTRACT
Medial ganglionic eminence (MGE) is one of the sources of inhibitory interneurons during development. Following transplantation in postnatal developing brain, MGE cells can increase local inhibition suggesting a possible protection to GABAergic dysfunction in brain disorders, such as epilepsy. Since it has been shown that MGE-derived cells harvested as neurospheres are able to suppress seizures, it might be important to investigate whether these protective effects would change in different seizure models. Here, we used pentylenetetrazole-(PTZ) and maximal electroshock (MES)-induced seizure models to test whether the transplantation of MGE cells would increase the threshold to trigger acute seizures. When transplanted into the neocortex (layers 3-4) of neonatal mice (postnatal days 3-4), MGE cells were able to survive and were mainly found in piriform cortex, fimbria, and ventricular wall regions. Additionally, the number of GFP+ cells found in the brains of mice induced with PTZ and MES differed significantly and suggests proliferation and larger survival rate of MGE-transplanted cells after PTZ, but not MES-induced seizures. Following transplantation, there was a reduction in the number of animals presenting mild and severe seizures induced by PTZ. Furthermore, MGE-cell transplantation was able to increase threshold to seizures induced by PTZ, but was not able to prevent seizure spread induced by MES.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Pentylenetetrazole
/
Seizures
/
Disease Models, Animal
/
Electroshock
/
Neural Stem Cells
/
Median Eminence
Type of study:
Etiology_studies
Limits:
Animals
/
Pregnancy
Language:
En
Journal:
Epilepsy Behav
Journal subject:
CIENCIAS DO COMPORTAMENTO
/
NEUROLOGIA
Year:
2017
Document type:
Article
Affiliation country:
Brasil