Title: PKC θ expression in gastrointestinal stromal tumors
Abstract: Objective To evaluate protein kinase Cθ(PKCθ)for the differential diagnosis of gastrointestinal stromal tumors(GIST).Methods The expression pattern of PKC θ was detected by immunohistochemistry in 121 GISTs,paired 51 distant normal tissues and 70 non-GIST sarcomas.Results Immunoreactivity for PKC θ was detected in 111 of 121 GIST cases,all eight CDll7-negative GISTs were PKC θ positive.PKC θ was negative in all distant normal tissue samples and 26 smooth muscle tumors.The positive expression rate of gastrointestinal mesenchemal tumors other than GIST was 18.2%.The expression rate of PKC θ did not vary with of tumor location,cell morphology and risk grades.Conclusions PKC θ could be a potential diagnotic marker in GIST patients,especially in those with negative CD117.
Key words:
Gastrointestinal stromal tumors; Protein kinase C; Tumor markers,biological
Publication Year: 2012
Publication Date: 2012-01-25
Language: en
Type: article
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