Activation of mTOR in maldeveloped balloon cells and dysmorphic neurons of type II focal cortical dysplasia / 中华病理学杂志
Chinese Journal of Pathology
;
(12): 311-315, 2013.
Article
in Chinese
| WPRIM
| ID: wpr-233463
ABSTRACT
<p><b>OBJECTIVE</b>To investigate whether mammalian target of rapamycin (mTOR) kinase was abnormally activated in maldeveloped balloon cells and dysmorphic neurons of focal cortical dysplasia (FCD) with refractory epilepsy.</p><p><b>METHODS</b>A total of 12 archival cases of FCD typeIIwith medically intractable epilepsy treated between 2008 and 2010 were retrieved. Perilesional brain tissue was used as control specimens (n = 8). The expression of phosphorylated p-AKT (Ser473), p-mTOR (Ser2448) and p-P70S6K (Thr389) was investigated by imunocytochemistry.</p><p><b>RESULTS</b>The expression of p-AKT (Ser473), p-mTOR (Ser2448) and p-P70S6K (Thr389) was found in meldeveloped balloon cells and dysmorphic neurons of FCD. A weak stain in a small amount of pyramid neurons was also found in the control group.</p><p><b>CONCLUSION</b>Abnormal activation of mTOR in maldeveloped balloon cells and dysmorphic neurons of FCD may be a key molecular mechanism underlying the histological changes and repeated seizures.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Pathology
/
Phosphorylation
/
Brain Diseases
/
Immunohistochemistry
/
Ribosomal Protein S6 Kinases, 70-kDa
/
Epilepsy
/
Proto-Oncogene Proteins c-akt
/
Malformations of Cortical Development
/
TOR Serine-Threonine Kinases
/
Nestin
Limits:
Adolescent
/
Adult
/
Child, preschool
/
Female
/
Humans
/
Male
Language:
Chinese
Journal:
Chinese Journal of Pathology
Year:
2013
Type:
Article
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