Prostate stem cell antigen gene is expressed in islets of pancreas / 대한해부학회지
Anatomy & Cell Biology
;
: 149-154, 2012.
Artículo
en Inglés
| WPRIM
| ID: wpr-125843
ABSTRACT
Prostate stem cell antigen (PSCA) is a glycosylphosphatidylinositol-anchored cell surface antigen with an organ-dependent expression pattern in cancers; e.g., up-regulated in prostate cancer and down-regulated in gastric cancer. Previously it was reported that PSCA is not expressed in the normal pancreas but aberrantly expressed in pancreatic cancer. In this present study, we identified PSCA expression in islets of the pancreas by immunohistochemistry, which was co-localized with four islet-cell markers insulin, glucagon, somatostatin and pancreatic polypeptide. In our investigation of the transcription start site of PSCA, we found a non-coding splicing variant of PSCA as well as authentic PSCA transcripts in mRNA samples from a normal pancreas. Both the transcripts were also identified in several pancreatic cancer cell lines. We previously reported that PSCA expression is correlated to the methylation status of the enhancer region in gastric and gallbladder cancer cell lines but not in pancreatic cancer cell lines, suggesting that PSCA expression is regulated in a diff erent mode in pancreatic cancer from that in gastric and gallbladder cancers.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Asunto principal:
Páncreas
/
Neoplasias Pancreáticas
/
Próstata
/
Neoplasias de la Próstata
/
Células Madre
/
Neoplasias Gástricas
/
ARN Mensajero
/
Glucagón
/
Polipéptido Pancreático
/
Somatostatina
Tipo de estudio:
Estudio pronóstico
Idioma:
Inglés
Revista:
Anatomy & Cell Biology
Año:
2012
Tipo del documento:
Artículo
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